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Jiang J, Luo Y, Fei P, Zhu Z, Peng J, Lu J, Zhu D, Wu H. Effect of adaptive laboratory evolution of engineered Escherichia coli in acetate on the biosynthesis of succinic acid from glucose in two-stage cultivation. BIORESOUR BIOPROCESS 2024; 11:34. [PMID: 38647614 PMCID: PMC10997558 DOI: 10.1186/s40643-024-00749-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 03/14/2024] [Indexed: 04/25/2024] Open
Abstract
Escherichia coli MLB (MG1655 ΔpflB ΔldhA), which can hardly grow on glucose with little succinate accumulation under anaerobic conditions. Two-stage fermentation is a fermentation in which the first stage is used for cell growth and the second stage is used for product production. The ability of glucose consumption and succinate production of MLB under anaerobic conditions can be improved significantly by using acetate as the solo carbon source under aerobic condition during the two-stage fermentation. Then, the adaptive laboratory evolution (ALE) of growing on acetate was applied here. We assumed that the activities of succinate production related enzymes might be further improved in this study. E. coli MLB46-05 evolved from MLB and it had an improved growth phenotype on acetate. Interestingly, in MLB46-05, the yield and tolerance of succinic acid in the anaerobic condition of two-stage fermentation were improved significantly. According to transcriptome analysis, upregulation of the glyoxylate cycle and the activity of stress regulatory factors are the possible reasons for the elevated yield. And the increased tolerance to acetate made it more tolerant to high concentrations of glucose and succinate. Finally, strain MLB46-05 produced 111 g/L of succinic acid with a product yield of 0.74 g/g glucose. SYNOPSIS.
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Affiliation(s)
- Jiaping Jiang
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Yuanchan Luo
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Peng Fei
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Zhengtong Zhu
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Jing Peng
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Juefeng Lu
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Du Zhu
- Key Lab of Bioprocess Engineering of Jiangxi Province, College of Life Sciences, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
| | - Hui Wu
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Biotechnology, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China.
- MOE Key Laboratory of Bio-Intelligent Manufacturing, School of Bioengineering, Dalian University of Technology, Dalian, China.
- Shanghai Collaborative Innovation Center for Biomanufacturing Technology, 130 Meilong Road, Shanghai, 200237, China.
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Huang B, Hu Q, Zhang G, Zou J, Fei P, Wang Z. Exploring the emulsification potential of chitosan modified with phenolic acids: Emulsifying properties, functional activities, and application in curcumin encapsulation. Int J Biol Macromol 2024; 263:130450. [PMID: 38412937 DOI: 10.1016/j.ijbiomac.2024.130450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 02/03/2024] [Accepted: 02/23/2024] [Indexed: 02/29/2024]
Abstract
This study successfully grafted caffeic acid and 3,4-dihydroxybenzoic acid into chitosan through a coupling reaction, yielding grafting ratio of 8.93 % for caffeic acid grafted chitosan (CA-GC) and 9.15 % for 3,4-dihydroxybenzoic acid grafted chitosan (DHB-GC) at an optimal concentration of 4 mmol phenolic acids. The characterization of modified chitosans through ultraviolet visible spectrometer (UV-vis), Fourier transform infrared spectrometer (FTIR), proton nuclear magnetic resonance (1H NMR), and x-ray photoelectron spectrometer (XPS) confirmed the successful grafting of phenolic acids. In the subsequent step of emulsion preparation, confocal laser scanning microscope images confirmed the formation of O/W (oil-in-water) emulsions. The phenolic acid-grafted chitosans exhibited better emulsification properties compared to native chitosan, such as reduced droplet size, more uniform emulsion droplet distribution, increased ζ-potential, and enhanced emulsifying activity and stability. Moreover, the modified chitosans demonstrated increased antioxidant activities (evidenced by DPPH and β-carotene assays) and displayed greater antimicrobial effects against E. coli and S. aureus. Its efficacy in curcumin encapsulation was also notable, with improved encapsulation efficiency, sustained release rates, and enhanced storage and photostability. These findings hint at the potential of modified chitosans as an effective emulsifier.
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Affiliation(s)
- Bingqing Huang
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China
| | - Qianyi Hu
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China
| | - Guoguang Zhang
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China
| | - Jinmei Zou
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China
| | - Peng Fei
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China
| | - Zhenjiong Wang
- College of Food Science & Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing 210023, China.
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Zhang L, Li Q, Bai X, Li X, Zhang G, Zou J, Fei P, Lai W. Double network self-healing hydrogels based on carboxyethyl chitosan/oxidized sodium alginate/Ca 2+: Preparation, characterization and application in dye absorption. Int J Biol Macromol 2024; 264:130564. [PMID: 38431021 DOI: 10.1016/j.ijbiomac.2024.130564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/30/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
This paper presents the formation of a self-healing hydrogel prepared by carboxyethyl modification of chitosan and crosslinking with oxidized sodium alginate. Concurrently, the incorporation of Ca2+ facilitated the formation of "calcium bridges" through intricate coordination with carboxyl moieties, bolstering the attributes of the hydrogel. Various characterization methods, including scanning electron microscopy, texture analysis, and rheological measurements, demonstrated that the introduction of carboxyethyl groups resulted in a more compact hydrogel network structure and improved the hardness and elasticity. The addition of Ca2+ helped to further enhance the mechanical performance of the hydrogel and increase its thermal stability. Then, the adsorption capacity was also investigated, showing adsorption capacities of 46.17 mg/g methylene blue and 46.44 mg/g congo red for carboxyethyl chitosan/oxidized sodium alginate hydrogel, a four-fold increase for congo red versus chitosan/oxidized sodium alginate hydrogel. In addition, the adsorption behavior of CEC/OSA/2%Ca2+ hydrogel can be well described by pseudo-second-order kinetic model and Langmuir adsorption isothermal model. Compared to traditional hydrogels, CEC/OSA/2%Ca2+ hydrogel shows superior mechanical strength, enhanced thermal stability, and improved adsorption capacity, which can effectively adsorb not only methylene blue but also congo red. These advancements demonstrate our hydrogel's innovative properties.
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Affiliation(s)
- Linyu Zhang
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, Key Laboratory of Pollution Monitoring and Control of Fujian Province, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Qianqi Li
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Xinru Bai
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Xiaoqin Li
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, Key Laboratory of Pollution Monitoring and Control of Fujian Province, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China
| | - Guoguang Zhang
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Jinmei Zou
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Peng Fei
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, Key Laboratory of Pollution Monitoring and Control of Fujian Province, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
| | - Wenqiang Lai
- Key Laboratory of Modern Analytical Science and Separation Technology of Fujian Province, Key Laboratory of Pollution Monitoring and Control of Fujian Province, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
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Fei P, Xu J, Xie J, Huang J, Feng H, Chen X, Jiang P, Guo M, Chang Y. Rosa roxburghii Tratt Pomace Crude Extract Inactivates Cronobacter sakazakii Isolated from Powdered Infant Formula. Foodborne Pathog Dis 2024; 21:268-274. [PMID: 38265446 DOI: 10.1089/fpd.2023.0088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024] Open
Abstract
Cronobacter sakazakii is an important foodborne pathogen in powder infant formula (PIF). The objective of this study was to evaluate the inactivation effect of Rosa roxburghii Tratt pomace crude extract (RRPCE) on C. sakazakii isolated from PIF and to reveal the mechanism of action. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were used to evaluate the inhibitory activity of RRPCE against C. sakazakii. The inhibitory mechanism was revealed from the perspective of effects of RRPCE on intracellular adenosine 5'-triphosphate (ATP), reactive oxygen species (ROS), membrane potential, protein and nucleic acid leakage, and cell morphology of C. sakazakii. The inactivation effects of RRPCE on C. sakazakii in biofilms on stainless steel, tinplate, glass, silica gel, polyethylene terephthalate, and polystyrene to evaluate its potential as a natural disinfectant. The results showed that the MIC and MBC of RRPCE against C. sakazakii were 7.5 and 15 mg/mL, respectively. After treatments with RRPCE, intracellular ATP content decreased significantly while intracellular ROS level increased significantly (p < 0.05). The cell membrane depolarization, large leakage of proteins and nucleic acids, and severely damaged cell morphology also occurred in C. sakazakii treated with RRPCE. In addition, a 20-minute treatment with 2 MIC (15 mg/mL) of RRPCE could inactivate all C. sakazakii (from 6.10 to 6.40 CFU/mL) in biofilms on all six contact surfaces. Our findings suggest that RRPCE is ideal for the inactivation of C. sakazakii and has the potential to be used as a natural disinfectant for the inactivation of PIF packaging materials and containers.
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Affiliation(s)
- Peng Fei
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Jing Xu
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Jinlan Xie
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Jicheng Huang
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Hongxia Feng
- Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang, China
| | - Xi Chen
- Institute of Integrated Agricultural Development Research, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Peiyi Jiang
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Mingliang Guo
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Yunhe Chang
- Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang, China
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Fei P, Sun Z, Liu X, Jiang P, Feng H, Chen X, Ma Y, Dong G, Fan C, Bai M, Li Y, Chang Y. Antibacterial Activity and Mechanism of Polygonatum sibiricum Extract Against Bacillus cereus and Its Application in Pasteurized Milk. Foodborne Pathog Dis 2024; 21:160-167. [PMID: 38079263 DOI: 10.1089/fpd.2023.0110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024] Open
Abstract
The purpose of this study was to reveal the antibacterial activity and mechanism of Polygonatum sibiricum extract (PSE) against Bacillus cereus and further analyze the application of PSE in pasteurized milk (PM). The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values and growth curve analysis were used to evaluate the antibacterial activity of PSE against B. cereus. The changes in contents of intracellular adenosine 5'-triphosphate (ATP) and reactive oxygen species (ROS), activities of β-galactosidase, adenosine triphosphatase (ATPase) and alkaline phosphatase (AKP), cell membrane potential, protein and nucleic acid leakage, and cell morphology were used to reveal the antibacterial mechanism. The effects of PSE on viable count and sensory evaluation of PM during storage were analyzed. The results showed that the MIC and MBC values of PSE against B. cereus were 2 and 4 mg/mL, respectively. Growth curve analysis showed that PSE with a concentration of 2 MIC could completely inhibit the growth of B. cereus. After treatments with PSE, the levels of intracellular ATP and ROS, and activities of β-galactosidase, ATPase and AKP of B. cereus were significantly reduced (p < 0.05). Cell membrane was depolarized, amounts of protein and nucleic acid leakage were significantly increased (p < 0.05), and cell morphology was destroyed. Furthermore, PSE significantly reduced the viable count of B. cereus in PM and improved the sensory quality of PM during storage (p < 0.05). Together, our findings suggested that PSE had the desired effect as a natural preservative applied in PM.
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Affiliation(s)
- Peng Fei
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
- Zhongyuan Food Laboratory, Luohe, China
| | - Zongyu Sun
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Xinyu Liu
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Peiyi Jiang
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Hongxia Feng
- Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang, China
| | - Xi Chen
- Institute of Integrated Agricultural Development Research, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Yan Ma
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Gege Dong
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Chengwei Fan
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Mengyang Bai
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Yadi Li
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Yunhe Chang
- Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang, China
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Liu Y, Liu J, Deng C, Wang B, Xia B, Liang X, Yang Y, Li S, Wang X, Li L, Lan X, Fei P, Zhang J, Gao L, Tang J. Planar Cation Passivation on Colloidal Quantum Dots Enables High-Performance 0.35-1.8 µm Broadband TFT Imager. Adv Mater 2024:e2313811. [PMID: 38358302 DOI: 10.1002/adma.202313811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/05/2024] [Indexed: 02/16/2024]
Abstract
Solution-processed colloidal quantum dots (CQDs) are promising candidates for broadband photodetectors from visible light to shortwave infrared (SWIR). However, large-size PbS CQDs sensitive to longer SWIR are mainly exposed with nonpolar (100) facets on the surface, which lack robust passivation strategies. Herein, an innovative passivation strategy that employs planar cation, is introduced to enable face-to-face coupling on (100) facets and strengthen halide passivation on (111) facets. The defect density of CQDs film (Eg ≈ 0.74 eV) is reduced from 2.74 × 1015 to 1.04 × 1015 cm-3 , coupled with 0.1 eV reduction in the activation energy of defects. The resultant CQDs photodiodes exhibit a low dark current density of 14 nA cm-2 with a high external quantum efficiency (EQE) of 62%, achieving a linear dynamic range of 98 dB, a -3dB bandwidth of 103 kHz and a detectivity of 4.7 × 1011 Jones. The comprehensive performance of the CQDs photodiodes outperforms previously reported CQDs photodiodes operating at >1.6 µm. By monolithically integrated with thin-film transistor (TFT) readout circuit, the broadband CQDs imager covering 0.35-1.8 µm realizes the functions including silicon wafer perspectivity and material discrimination, showing its potential for wide range of applications.
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Affiliation(s)
- Yuxuan Liu
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Jing Liu
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
- Optics Valley Laboratory, 1037 Luoyu Road, Wuhan, 430074, P. R. China
- Wenzhou Advanced Manufacturing Technology Research Institute, Huazhong University of Science and Technology, 225 Chaoyang New Street, Wenzhou, 325035, P. R. China
| | - Chengjie Deng
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Bo Wang
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Bing Xia
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Xinyi Liang
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Yang Yang
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Shengman Li
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
- Hunan Institute of Optoelectronic Integration, Hunan University, Changsha, 410082, China
| | - Xihua Wang
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, T6G 2V4, Canada
| | - Luying Li
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Xinzheng Lan
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
- Optics Valley Laboratory, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Peng Fei
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
| | - Jianbing Zhang
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
- Optics Valley Laboratory, 1037 Luoyu Road, Wuhan, 430074, P. R. China
- Wenzhou Advanced Manufacturing Technology Research Institute, Huazhong University of Science and Technology, 225 Chaoyang New Street, Wenzhou, 325035, P. R. China
- Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen, Guangdong, 518057, China
| | - Liang Gao
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
- Optics Valley Laboratory, 1037 Luoyu Road, Wuhan, 430074, P. R. China
- Wenzhou Advanced Manufacturing Technology Research Institute, Huazhong University of Science and Technology, 225 Chaoyang New Street, Wenzhou, 325035, P. R. China
- Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen, Guangdong, 518057, China
| | - Jiang Tang
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China
- Optics Valley Laboratory, 1037 Luoyu Road, Wuhan, 430074, P. R. China
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Guo L, Han J, Wang Y, Chang Y, Qu W, Man C, Fei P, Jiang Y. Antibacterial action of slightly acidic electrolytic water against Cronobacter sakazakii and its application as a disinfectant on high-risk contact surfaces. Front Microbiol 2024; 15:1314362. [PMID: 38351917 PMCID: PMC10864107 DOI: 10.3389/fmicb.2024.1314362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 01/15/2024] [Indexed: 02/16/2024] Open
Abstract
Powdered infant formula (PIF) is prone to Cronobacter sakazakii (C. sakazakii) contamination, which can result in infections that endanger the lives of newborns and infants. Slightly acidic electrolytic water (SAEW) has shown antibacterial effects on a variety of foodborne pathogens and has a wide applicability in the food industry. Here, the antibacterial activity of SAEW against C. sakazakii and its use as a disinfectant on contact surfaces with high infection transmission risk were investigated. The inactivation of SAEW on C. sakazakii was positively correlated to the SAEW concentration and treatment time. The antibacterial effect of SAEW was achieved by decreasing the intracellular adenosine triphosphate (ATP), K+, protein, and DNA contents of C. sakazakii, reducing the intracellular pH (pHin) and destroying the cell morphology, which led to inactivation of C. sakazakii ultimately. To test the applicability of this study, the results showed that approximately 103 CFU/cm2 of C. sakazakii were successfully inactivated on stainless steel and rubber surfaces after a 30 mg/L SAEW treatment for 20 s. These results indicate the antibacterial mechanism and potential application of SAEW against C. sakazakii, as well as a new strategy for the prevention and control of C. sakazakii on stainless steel and rubber surfaces.
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Affiliation(s)
- Ling Guo
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
- Food Laboratory of Zhongyuan, Luohe, China
| | - Jing Han
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Yanyan Wang
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Yajing Chang
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Wenxuan Qu
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Chaoxin Man
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Peng Fei
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Yujun Jiang
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
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Fang Y, Sheng D, Lin Z, Fei P. Study of Low-Velocity Impact Behavior of Hybrid Fiber-Reinforced Metal Laminates. Polymers (Basel) 2024; 16:173. [PMID: 38256972 PMCID: PMC10819878 DOI: 10.3390/polym16020173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/22/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
In this paper, the low-velocity impact behavior and damage modes of carbon/glass-hybrid fiber-reinforced magnesium alloy laminates (FMLs-H) and pure carbon-fiber-reinforced magnesium alloy laminates (FMLs-C) are investigated using experimental, theoretical modeling, and numerical simulation methods. Low-velocity impact tests were conducted at incident energies of 20 J, 40 J, and 60 J using a drop-weight impact tester, and the load-displacement curves and energy-time curves of the FMLs were recorded and plotted. The results showed that compared with FMLs-C, the stiffness of FMLs-H was slightly reduced, but the peak load and energy absorption were both greatly improved. Finally, a finite element model based on the Abaqus-VUMAT subroutine was developed to simulate the experimental results, and the damage modes of the metal layer, fiber layer, and interlayer were observed and analyzed. The experimental results are in good agreement with the finite element analysis results. The damage mechanisms of two kinds of FMLs under low-velocity impacts are discussed, providing a reference for the design and application of laminates.
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Affiliation(s)
- Yuting Fang
- School of Civil Engineering, Southwest Forestry University, Kunming 650224, China; (Y.F.); (Z.L.)
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - Dongfa Sheng
- School of Civil Engineering, Southwest Forestry University, Kunming 650224, China; (Y.F.); (Z.L.)
| | - Zhongzhao Lin
- School of Civil Engineering, Southwest Forestry University, Kunming 650224, China; (Y.F.); (Z.L.)
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - Peng Fei
- School of Resources, Environment and Safety Engineering, University of South China, Hengyang 421001, China;
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Huang Y, Lin J, Shen B, Zheng C, Huang B, Zou J, Zhang G, Fei P. Chlorogenic acid-chitosan copolymers: Synthesis, characterization and application in O/W emulsions for enhanced β-carotene stability. Int J Biol Macromol 2024; 254:127839. [PMID: 37931860 DOI: 10.1016/j.ijbiomac.2023.127839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/15/2023] [Accepted: 10/31/2023] [Indexed: 11/08/2023]
Abstract
In this study, chlorogenic acid-chitosan (CA-CS) copolymers were prepared with varying Chitosan (CS): chlorogenic acid (CA)ratios and characterized for their water solubility, antioxidant capacity, and emulsions stability. Results showed that CA-CS samples exhibited up to 90.5 % increase in DPPH scavenging efficiency and 20 % increase in hydroxyl radical scavenging efficiency compared to CS alone. CA-CS copolymers used to stabilize oil in water (O/W) emulsions, which were evaluated for their potential in encapsulating and protecting β-carotene. Microscopic observations revealed homogeneous spherical droplets in stable emulsions, suggesting effective interfacial structures. The selected CA-CS-stabilized O/W emulsions demonstrated encapsulation efficiencies of 74.8 % and 75.26 % for β-carotene. The CA-CS stabilized O/W emulsions provided the most effective protection against β-carotene degradation under UV exposure, retaining over 80 % of β-carotene content after 12 h of testing. These findings indicate that CA-CS-based O/W emulsions show promise as carriers and protectors for bioactive compounds, due to their improved antioxidant capacity, emulsions stability, and protection against degradation.
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Affiliation(s)
- Yufan Huang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Jiaofen Lin
- Department of Biotechnology, Xiamen Ocean Vocation College, Xiamen, Fujian 361000, PR China; Xiamen Key Laboratory of Intelligent Fishery, Fujian, Xiamen 361100, PR China
| | - Bihua Shen
- Key Laboratory of Modern Analytical Science and Separation Technology, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China
| | - Chenmin Zheng
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Bingqing Huang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Jinmei Zou
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Guoguang Zhang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
| | - Peng Fei
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
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10
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Cheng B, Lin J, Zou J, Zhuang Y, Zheng L, Zhang G, Huang B, Fei P. Preparation of curcumin-loaded pectin-nisin copolymer emulsion and evaluation of its stability. Int J Biol Macromol 2024; 254:127812. [PMID: 37923038 DOI: 10.1016/j.ijbiomac.2023.127812] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/07/2023]
Abstract
In the paper, Nisin was grafted onto native pectin by the 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC·HCl) method. Structure characterisation showed that the carboxyl group of pectin interacted with the amino group of Nisin and formed an amide bond. The highest grafting ratio of the modified pectin was up to 24.89 %. The emulsifying property of modified pectin, significantly improved, and emulsification performance improved with increasing grafting ratio. Emulsifying activity, emulsion stability, Zeta potential, and droplet morphology data demonstrate a notable enhancement in pectin's emulsifying properties due to Nisin's introduction, with the degree of grafting showing a direct correlation with the improvement observed. Pectin-based emulsion is utilized to load curcumin, enhancing its stability and bioavailability. Research findings highlight that the incorporation of Nisin-modified pectin significantly elevates curcumin encapsulation efficiency, while decelerating its release rate. Moreover, the stability of curcumin loaded in the modified pectin under light exposure, alkaline conditions, and long-term storage is also significantly improved. Ultimately, the bioavailability of curcumin escalates from 0.368 to 0.785.
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Affiliation(s)
- Bingqing Cheng
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China
| | - Jiaofen Lin
- Department of Biotechnology, Xiamen Ocean Vocation College, Xiamen, Fujian 361000, China; Xiamen Key Laboratory of Intelligent Fishery, Fujian, Xiamen 361100, China
| | - Jinmei Zou
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China
| | - Yuanhong Zhuang
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China
| | - Linhua Zheng
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China
| | - Guoguang Zhang
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China
| | - Bingqing Huang
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China.
| | - Peng Fei
- Research Institute of Zhangzhou-Taiwan Leisure Food and Tea Beverage, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China.
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11
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Chen L, Meng J, Zhou Y, Zhao F, Ma Y, Feng W, Chen X, jin J, Gao S, Liu J, Zhang M, Liu A, Hong Z, Tang J, Kuang D, Huang L, Zhang Y, Fei P. Efficient 3D imaging and pathological analysis of the human lymphoma tumor microenvironment using light-sheet immunofluorescence microscopy. Theranostics 2024; 14:406-419. [PMID: 38164148 PMCID: PMC10750216 DOI: 10.7150/thno.86221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 10/26/2023] [Indexed: 01/03/2024] Open
Abstract
Rationale: The composition and spatial structure of the lymphoma tumor microenvironment (TME) provide key pathological insights for tumor survival and growth, invasion and metastasis, and resistance to immunotherapy. However, the 3D lymphoma TME has not been well studied owing to the limitations of current imaging techniques. In this work, we take full advantage of a series of new techniques to enable the first 3D TME study in intact lymphoma tissue. Methods: Diverse cell subtypes in lymphoma tissues were tagged using a multiplex immunofluorescence labeling technique. To optically clarify the entire tissue, immunolabeling-enabled three-dimensional imaging of solvent-cleared organs (iDISCO+), clear, unobstructed brain imaging cocktails and computational analysis (CUBIC) and stabilization to harsh conditions via intramolecular epoxide linkages to prevent degradation (SHIELD) were comprehensively compared with the ultimate dimensional imaging of solvent-cleared organs (uDISCO) approach selected for clearing lymphoma tissues. A Bessel-beam light-sheet fluorescence microscope (B-LSFM) was developed to three-dimensionally image the clarified tissues at high speed and high resolution. A customized MATLAB program was used to quantify the number and colocalization of the cell subtypes based on the acquired multichannel 3D images. By combining these cutting-edge methods, we successfully carried out high-efficiency 3D visualization and high-content cellular analyses of the lymphoma TME. Results: Several antibodies, including CD3, CD8, CD20, CD68, CD163, CD14, CD15, FOXP3 and Ki67, were screened for labeling the TME in lymphoma tumors. The 3D imaging results of the TME from three types of lymphoma, reactive lymphocytic hyperplasia (RLN), diffuse large B-cell lymphoma (DLBCL), and angioimmunoblastic T-cell lymphoma (AITL), were quantitatively analyzed, and their cell number, localization, and spatial correlation were comprehensively revealed. Conclusion: We present an advanced imaging-based method for efficient 3D visualization and high-content cellular analysis of the lymphoma TME, rendering it a valuable tool for tumor pathological diagnosis and other clinical research.
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Affiliation(s)
- Liting Chen
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiao Meng
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hematology Department, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China
| | - Yao Zhou
- School of Optical and Electronic Information - Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
| | - Fang Zhao
- School of Optical and Electronic Information - Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
| | - Yifan Ma
- School of Optical and Electronic Information - Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
| | - Wenyang Feng
- School of Optical and Electronic Information - Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
| | - Xingyu Chen
- School of Optical and Electronic Information - Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
| | - Jin jin
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shimeng Gao
- School of Optical and Electronic Information - Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
| | - Jianchao Liu
- School of Optical and Electronic Information - Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
| | - Man Zhang
- Hematology Department, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China
| | - Aichun Liu
- Hematology Department, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China
| | - Zhenya Hong
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiang Tang
- School of Optical and Electronic Information - Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
| | - Dong Kuang
- Department of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liang Huang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yicheng Zhang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Fei
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Optical and Electronic Information - Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
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12
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Wang P, Tian J, Li D, Fei P, Shi X. A Novel Non-Coherent Q-Ary TH-PPM Transceiver. Sensors (Basel) 2023; 24:105. [PMID: 38202966 PMCID: PMC10781356 DOI: 10.3390/s24010105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/15/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024]
Abstract
Time-hopping pulse position modulation (TH-PPM) stands out as a secure communication due to the pseudo-random characteristics of its time-hopping sequence. However, the conventional TH-PPM transceiver encounters challenges in implementation, particularly in achieving the requisite high precision for synchronization. This paper introduces a novel non-coherent Q-ary TH-PPM transceiver, designed to surpass the Bit error rate (BER) performance of conventional TH-PPM transceivers in scenarios under non-ideal synchronization conditions, which also being straightforward to implement. Firstly, we provide an overview of the conventional TH-PPM transceiver. Secondly, the novel TH-PPM transceiver is introduced. In this context, a novel method for generating the TH-PPM signal is proposed for the transmitter, and a parallel matched-filter algorithm, adapted to the new TH-PPM signal, is presented for the receiver. Subsequently, the investigation delves into an in-depth analysis of BER performance, considering both ideal synchronization conditions and non-ideal synchronization conditions, for both the conventional and the new TH-PPM transceiver. Furthermore, the paper proposes a numerical simulation to validate the theoretical findings. The results demonstrate that the new TH-PPM transceiver outperforms the conventional counterpart by showing better BER performance in scenarios with non-ideal synchronization conditions.
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Affiliation(s)
- Peng Wang
- Institute of Electronic Engineering, CAEP, Mianyang 621999, China; (P.W.); (J.T.); (D.L.)
| | - Jie Tian
- Institute of Electronic Engineering, CAEP, Mianyang 621999, China; (P.W.); (J.T.); (D.L.)
| | - Duoye Li
- Institute of Electronic Engineering, CAEP, Mianyang 621999, China; (P.W.); (J.T.); (D.L.)
| | - Peng Fei
- Department of Electronic Engineering, Rocket Force University of Engineering, Xi’an 710025, China;
| | - Xianhua Shi
- Institute of Electronic Engineering, CAEP, Mianyang 621999, China; (P.W.); (J.T.); (D.L.)
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13
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Yi C, Zhu L, Sun J, Wang Z, Zhang M, Zhong F, Yan L, Tang J, Huang L, Zhang YH, Li D, Fei P. Video-rate 3D imaging of living cells using Fourier view-channel-depth light field microscopy. Commun Biol 2023; 6:1259. [PMID: 38086994 PMCID: PMC10716377 DOI: 10.1038/s42003-023-05636-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Interrogation of subcellular biological dynamics occurring in a living cell often requires noninvasive imaging of the fragile cell with high spatiotemporal resolution across all three dimensions. It thereby poses big challenges to modern fluorescence microscopy implementations because the limited photon budget in a live-cell imaging task makes the achievable performance of conventional microscopy approaches compromise between their spatial resolution, volumetric imaging speed, and phototoxicity. Here, we incorporate a two-stage view-channel-depth (VCD) deep-learning reconstruction strategy with a Fourier light-field microscope based on diffractive optical element to realize fast 3D super-resolution reconstructions of intracellular dynamics from single diffraction-limited 2D light-filed measurements. This VCD-enabled Fourier light-filed imaging approach (F-VCD), achieves video-rate (50 volumes per second) 3D imaging of intracellular dynamics at a high spatiotemporal resolution of ~180 nm × 180 nm × 400 nm and strong noise-resistant capability, with which light field images with a signal-to-noise ratio (SNR) down to -1.62 dB could be well reconstructed. With this approach, we successfully demonstrate the 4D imaging of intracellular organelle dynamics, e.g., mitochondria fission and fusion, with ~5000 times of observation.
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Affiliation(s)
- Chengqiang Yi
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Lanxin Zhu
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jiahao Sun
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhaofei Wang
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Meng Zhang
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, 430074, China
- Britton Chance Center for Biomedical Photonics-MoE Key Laboratory for Biomedical Photonics, Advanced Biomedical Imaging Facility-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Fenghe Zhong
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Luxin Yan
- State Education Commission Key Laboratory for Image Processing and Intelligent Control, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Jiang Tang
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Liang Huang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Yu-Hui Zhang
- Britton Chance Center for Biomedical Photonics-MoE Key Laboratory for Biomedical Photonics, Advanced Biomedical Imaging Facility-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Dongyu Li
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Peng Fei
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, 430074, China
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14
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Huang Y, Shen B, Zheng C, Huang B, Zhang G, Fei P. Preparation of amphoteric double network hydrogels based on low methoxy pectin: Adsorption kinetics and removal of anionic and cationic dyes. Int J Biol Macromol 2023; 252:126488. [PMID: 37643669 DOI: 10.1016/j.ijbiomac.2023.126488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/16/2023] [Accepted: 08/22/2023] [Indexed: 08/31/2023]
Abstract
The objective of this research was to devise a functional hydrogel was synthesized using pectin (PE), acrylic acid (AA), dimethyldiallyl ammonium chloride (DC), and polyvinyl alcohol (PVA), designed to adsorb both cationic and anionic dyes concurrently. The low methoxy pectin formed double network hydrogel through chemical and physical crosslinking with AA and PVA respectively. DC is combined into the hydrogel system through copolymerization reaction. Analysis of hydrogel's physicochemical properties was conducted using techniques such as infrared spectroscopy, texture analysis, thermogravimetry, and scanning electron microscopy. Dyes adsorption studies showed that the LP/AA/DC/PVA-2 hydrogel, prepared at the molar ratio of AA to DC of 1:2, exhibited higher adsorption efficiency for methylene blue (MB) and Congo red (CR). Kinetics and isotherms studies indicated that the adsorption behavior conformed to the pseudo-second-order kinetic model and Langmuir isotherm model. By the Langmuir isotherm fitting, the maximum adsorption capacities of MB and CR by LP/AA/DC/PVA-2 were recorded to be 222.65 mg/g and 316.46 mg/g, respectively. The adsorption mechanism is dominated by the hydrogen bonding and electrostatic interactions. Further, the adsorption and desorption experiments demonstrated that LP/AA/DC/PVA-2 hydrogel have excellent reusability.
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Affiliation(s)
- Yufan Huang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Bihua Shen
- Key Laboratory of Modern Analytical Science and Separation Technology, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou, 363000, PR China
| | - Chenmin Zheng
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Bingqing Huang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Guoguang Zhang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
| | - Peng Fei
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
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15
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Sun J, Zhao F, Zhu L, Liu B, Fei P. Optical projection tomography reconstruction with few views using highly-generalizable deep learning at sinogram domain. Biomed Opt Express 2023; 14:6260-6270. [PMID: 38420331 PMCID: PMC10898583 DOI: 10.1364/boe.500152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 10/31/2023] [Accepted: 10/31/2023] [Indexed: 03/02/2024]
Abstract
Optical projection tomography (OPT) reconstruction using a minimal number of measured views offers the potential to significantly reduce excitation dosage and greatly enhance temporal resolution in biomedical imaging. However, traditional algorithms for tomographic reconstruction exhibit severe quality degradation, e.g., presence of streak artifacts, when the number of views is reduced. In this study, we introduce a novel domain evaluation method which can evaluate the domain complexity, and thereby validate that the sinogram domain exhibits lower complexity as compared to the conventional spatial domain. Then we achieve robust deep-learning-based reconstruction with a feedback-based data initialization method at sinogram domain, which shows strong generalization ability that notably improves the overall performance for OPT image reconstruction. This learning-based approach, termed SinNet, enables 4-view OPT reconstructions of diverse biological samples showing robust generalization ability. It surpasses the conventional OPT reconstruction approaches in terms of peak-signal-to-noise ratio (PSNR) and structural similarity (SSIM) metrics, showing its potential for the augment of widely-used OPT techniques.
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Affiliation(s)
- Jiahao Sun
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Fang Zhao
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Lanxin Zhu
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - BinBing Liu
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Peng Fei
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
- Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, 430074, China
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16
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Guo X, Zhao F, Zhu J, Zhu D, Zhao Y, Fei P. Rapid 3D isotropic imaging of whole organ with double-ring light-sheet microscopy and self-learning side-lobe elimination. Biomed Opt Express 2023; 14:6206-6221. [PMID: 38420327 PMCID: PMC10898557 DOI: 10.1364/boe.505217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/26/2023] [Accepted: 10/30/2023] [Indexed: 03/02/2024]
Abstract
Bessel-like plane illumination forms a new type of light-sheet microscopy with ultra-long optical sectioning distance that enables rapid 3D imaging of fine cellular structures across an entire large tissue. However, the side-lobe excitation of conventional Bessel light sheets severely impairs the quality of the reconstructed 3D image. Here, we propose a self-supervised deep learning (DL) approach that can completely eliminate the residual side lobes for a double-ring-modulated non-diffraction light-sheet microscope, thereby substantially improving the axial resolution of the 3D image. This lightweight DL model utilizes the own point spread function (PSF) of the microscope as prior information without the need for external high-resolution microscopy data. After a quick training process based on a small number of datasets, the grown-up model can restore sidelobe-free 3D images with near isotropic resolution for diverse samples. Using an advanced double-ring light-sheet microscope in conjunction with this efficient restoration approach, we demonstrate 5-minute rapid imaging of an entire mouse brain with a size of ∼12 mm × 8 mm × 6 mm and achieve uniform isotropic resolution of ∼4 µm (1.6-µm voxel) capable of discerning the single neurons and vessels across the whole brain.
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Affiliation(s)
- Xinyi Guo
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Fang Zhao
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jingtan Zhu
- MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Dan Zhu
- MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, 430074, Wuhan, China
- Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yuxuan Zhao
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Peng Fei
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
- MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, 430074, Wuhan, China
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17
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Chang T, Han W, Jiang M, Li J, Liao Z, Tang M, Zhang J, Shen J, Chen Z, Fei P, Ren X, Pang Y, Wang G, Wang J, Huang Y. Rapid and signal crowdedness-robust in situ sequencing through hybrid block coding. Proc Natl Acad Sci U S A 2023; 120:e2309227120. [PMID: 37963245 PMCID: PMC10666108 DOI: 10.1073/pnas.2309227120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 09/24/2023] [Indexed: 11/16/2023] Open
Abstract
Spatial transcriptomics technology has revolutionized our understanding of cell types and tissue organization, opening possibilities for researchers to explore transcript distributions at subcellular levels. However, existing methods have limitations in resolution, sensitivity, or speed. To overcome these challenges, we introduce SPRINTseq (Spatially Resolved and signal-diluted Next-generation Targeted sequencing), an innovative in situ sequencing strategy that combines hybrid block coding and molecular dilution strategies. Our method enables fast and sensitive high-resolution data acquisition, as demonstrated by recovering over 142 million transcripts using a 108-gene panel from 453,843 cells from four mouse brain coronal slices in less than 2 d. Using this advanced technology, we uncover the cellular and subcellular molecular architecture of Alzheimer's disease, providing additional information into abnormal cellular behaviors and their subcellular mRNA distribution. This improved spatial transcriptomics technology holds great promise for exploring complex biological processes and disease mechanisms.
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Affiliation(s)
- Tianyi Chang
- Biomedical Pioneering Innovation Center, Peking University, Beijing100871, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing100871, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing100871, China
| | - Wuji Han
- Biomedical Pioneering Innovation Center, Peking University, Beijing100871, China
- Yuanpei College, Peking University, Beijing100871, China
| | - Mengcheng Jiang
- Biomedical Pioneering Innovation Center, Peking University, Beijing100871, China
- Materials Science and Engineering, College of Engineering, Peking University, Beijing100871, China
| | - Jizhou Li
- School of Life Sciences, Tsinghua University, Beijing100084, China
| | - Zhizhao Liao
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing100871, China
- Changping Laboratory, Changping District, Beijing102206, China
| | - Mingchuan Tang
- Biomedical Pioneering Innovation Center, Peking University, Beijing100871, China
- Yuanpei College, Peking University, Beijing100871, China
| | - Jianyun Zhang
- Department of Oral Pathology, Peking University School and Hospital of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing100081, China
| | - Jie Shen
- School of Basic Medical Sciences, Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing100069, China
| | - Zitian Chen
- Biomedical Pioneering Innovation Center, Peking University, Beijing100871, China
| | - Peng Fei
- School of Optical and Electronic Information – Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan430074, China
| | - Xianwen Ren
- Changping Laboratory, Changping District, Beijing102206, China
| | - Yuhong Pang
- Biomedical Pioneering Innovation Center, Peking University, Beijing100871, China
| | - Guanbo Wang
- Biomedical Pioneering Innovation Center, Peking University, Beijing100871, China
- Institute for Cell Analysis, Shenzhen Bay Laboratory, Guangdong528107, China
| | - Jianbin Wang
- School of Life Sciences, Tsinghua University, Beijing100084, China
| | - Yanyi Huang
- Biomedical Pioneering Innovation Center, Peking University, Beijing100871, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing100871, China
- Institute for Cell Analysis, Shenzhen Bay Laboratory, Guangdong528107, China
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing100871, China
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18
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Zheng C, Cai N, Huang C, Huang Y, Zou J, Zhang G, Fei P. Evaluation of amidated pectin as fat substitutes for minced chicken breast: Physicochemical properties and edible quality. Food Res Int 2023; 173:113371. [PMID: 37803709 DOI: 10.1016/j.foodres.2023.113371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 08/07/2023] [Accepted: 08/10/2023] [Indexed: 10/08/2023]
Abstract
An investigation was conducted to assess the gelation characteristics of amino acid amidated pectin and its subsequent influence on the quality of minced chicken breast (MCB) when employed as a lipid substitute. Through experimentation, it was evidenced that amidated pectin, such as glycine amidated pectin (AP@Gly), glutamic amidated pectin (AP@Glu), and lysine amidated pectin (AP@Lys), demonstrated superior viscosity and gelation capacity in comparison to their native pectin (PE) counterpart. In contrast to PE, amidated pectin samples exhibited the potential to form high-strength hydrogels under conditions of minimal restriction. Additionally, evaluations conducted on all samples established that MCB samples enriched with pectin and amidated pectin demonstrated superior water retention capability. Before thermal processing, MCB samples fortified with amidated pectin showcased higher hardness and L* values in comparison to PE and the control group. However, upon thermal processing, no significant divergence was found in the chroma and texture profile analysis (TPA) attributes across all MCB samples, and the electronic tongue sensory evaluation was closely aligned with the control group. This evidence substantiates the effectiveness of amidated pectin samples as viable lipid substitutes in MCB products.
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Affiliation(s)
- Chenmin Zheng
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Na Cai
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Chunchun Huang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Yufan Huang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Jinmei Zou
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Guoguang Zhang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
| | - Peng Fei
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
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Liu J, Liu P, Shi T, Ke M, Xiong K, Liu Y, Chen L, Zhang L, Liang X, Li H, Lu S, Lan X, Niu G, Zhang J, Fei P, Gao L, Tang J. Flexible and broadband colloidal quantum dots photodiode array for pixel-level X-ray to near-infrared image fusion. Nat Commun 2023; 14:5352. [PMID: 37660051 PMCID: PMC10475073 DOI: 10.1038/s41467-023-40620-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 08/02/2023] [Indexed: 09/04/2023] Open
Abstract
Combining information from multispectral images into a fused image is informative and beneficial for human or machine perception. Currently, multiple photodetectors with different response bands are used, which require complicated algorithms and systems to solve the pixel and position mismatch problem. An ideal solution would be pixel-level multispectral image fusion, which involves multispectral image using the same photodetector and circumventing the mismatch problem. Here we presented the potential of pixel-level multispectral image fusion utilizing colloidal quantum dots photodiode array, with a broadband response range from X-ray to near infrared and excellent tolerance for bending and X-ray irradiation. The colloidal quantum dots photodiode array showed a specific detectivity exceeding 1012 Jones in visible and near infrared range and a favorable volume sensitivity of approximately 2 × 105 μC Gy-1 cm-3 for X-ray irradiation. To showcase the advantages of pixel-level multispectral image fusion, we imaged a capsule enfolding an iron wire and soft plastic, successfully revealing internal information through an X-ray to near infrared fused image.
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Affiliation(s)
- Jing Liu
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
- Optical Valley Laboratory, 430074, Wuhan, P. R. China
- Wenzhou Advanced Manufacturing Technology Research Institute of Huazhong University of Science and Technology, 225 Chaoyang New Street, 325105, Wenzhou, P. R. China
| | - Peilin Liu
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
| | - Tailong Shi
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
| | - Mo Ke
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
| | - Kao Xiong
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
| | - Yuxuan Liu
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
| | - Long Chen
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
| | - Linxiang Zhang
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
| | - Xinyi Liang
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
| | - Hao Li
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
| | - Shuaicheng Lu
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
- Wenzhou Advanced Manufacturing Technology Research Institute of Huazhong University of Science and Technology, 225 Chaoyang New Street, 325105, Wenzhou, P. R. China
| | - Xinzheng Lan
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
- Optical Valley Laboratory, 430074, Wuhan, P. R. China
| | - Guangda Niu
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
- Optical Valley Laboratory, 430074, Wuhan, P. R. China
| | - Jianbing Zhang
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
- Optical Valley Laboratory, 430074, Wuhan, P. R. China
- Wenzhou Advanced Manufacturing Technology Research Institute of Huazhong University of Science and Technology, 225 Chaoyang New Street, 325105, Wenzhou, P. R. China
| | - Peng Fei
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China
- Optical Valley Laboratory, 430074, Wuhan, P. R. China
| | - Liang Gao
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China.
- Optical Valley Laboratory, 430074, Wuhan, P. R. China.
- Wenzhou Advanced Manufacturing Technology Research Institute of Huazhong University of Science and Technology, 225 Chaoyang New Street, 325105, Wenzhou, P. R. China.
| | - Jiang Tang
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074, Wuhan, P. R. China.
- Optical Valley Laboratory, 430074, Wuhan, P. R. China.
- National Engineering Research Center for Laser Processing, 1037 Luoyu Road, 430074, Wuhan, P. R. China.
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20
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Goda K, Lu H, Fei P, Guck J. Revolutionizing microfluidics with artificial intelligence: a new dawn for lab-on-a-chip technologies. Lab Chip 2023; 23:3737-3740. [PMID: 37503818 DOI: 10.1039/d3lc90061d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Keisuke Goda, Hang Lu, Peng Fei, and Jochen Guck introduce the AI in Microfluidics themed collection, on revolutionizing microfluidics with artificial intelligence: a new dawn for lab-on-a-chip technologies.
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Affiliation(s)
- Keisuke Goda
- Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan.
- Department of Bioengineering, University of California, Los Angeles, California 90095, USA
- Institute of Technological Sciences, Wuhan University, Wuhan 430072, China
| | - Hang Lu
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - Peng Fei
- School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jochen Guck
- Max Planck Institute for the Science of Light and Max-Planck-Zentrum für Physik und Medizin, Erlangen, Germany
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21
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Zheng C, Huang Y, Liang X, Shen B, Zhang G, Fei P. Novel Pickering emulsion gels stabilized solely by phenylalanine amidated pectin: Characterization, stability and curcumin bioaccessibility. Int J Biol Macromol 2023; 244:125483. [PMID: 37343609 DOI: 10.1016/j.ijbiomac.2023.125483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/25/2023] [Accepted: 06/17/2023] [Indexed: 06/23/2023]
Abstract
Pickering emulsion gels represent a novel class of non-toxic and biocompatible emulsions, offering extensive applications in the pharmaceutical and food additive sectors. This study delineates the synthesis of Pickering emulsion gels utilizing native and amidated pectin samples. Phenylalanine amidated pectin (AP) was procured via an ultra-low temperature enzyme method, while the control group (LP) adhered to an identical procedure without papain catalysis. Experimental outcomes revealed that the AP Pickering emulsion gel manifested superior stability compared to pectin emulsion samples (PE and LP). The Pickering emulsion gel from 5 % amidated pectin (5AP) retained stability throughout a 14-day emulsion stability assessment. Furthermore, all emulsion samples were evaluated for their capacity to deliver and sustain curcumin within an in vitro digestion simulation. Rheological properties and oil droplet size results indicated that the 5AP Pickering emulsion gel exhibited optimal cream index and emulsion stability, effectively inhibiting premature water-oil stratification within the emulsion and augmenting curcumin bioaccessibility. Within the in vitro digestion simulation, the 5AP Pickering emulsion gel demonstrated the highest curcumin bioaccessibility, measured at 17.96 %.
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Affiliation(s)
- Chenmin Zheng
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Yufan Huang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Xiaojing Liang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Bihua Shen
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Guoguang Zhang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
| | - Peng Fei
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
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22
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Yu T, Zhong X, Yang Q, Gao C, Chen W, Liu X, Liu Z, Zhu T, Li D, Fei P, Chen Z, Gu Z, Zhu D. On-chip clearing for live imaging of 3D cell cultures. Biomed Opt Express 2023; 14:3003-3017. [PMID: 37342722 PMCID: PMC10278639 DOI: 10.1364/boe.489219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/07/2023] [Accepted: 05/07/2023] [Indexed: 06/23/2023]
Abstract
Three-dimensional (3D) cell cultures provide an important model for various biological studies by bridging the gap between two-dimensional (2D) cell cultures and animal tissues. Microfluidics has recently provided controllable platforms for handling and analyzing 3D cell cultures. However, on-chip imaging of 3D cell cultures within microfluidic devices is hindered by the inherent high scattering of 3D tissues. Tissue optical clearing techniques have been used to address this concern but remain limited to fixed samples. As such, there is still a need for an on-chip clearing method for imaging live 3D cell cultures. Here, to achieve on-chip clearing for live imaging of 3D cell cultures, we conceived a simple microfluidic device by integrating a U-shaped concave for culture, parallel channels with micropillars, and differentiated surface treatment to enable on-chip 3D cell culture, clearing, and live imaging with minimal disturbance. The on-chip tissue clearing increased the imaging performance of live 3D spheroids with no influence on cell viability or spheroid proliferation and demonstrated robust compatibility with several commonly used cell probes. It allowed dynamic tracking of lysosomes in live tumor spheroids and enabled quantitative analysis of their motility in the deeper layer. Our proposed method of on-chip clearing for live imaging of 3D cell cultures provides an alternative for dynamic monitoring of deep tissue on a microfluidic device and has the potential to be used in 3D culture-based assays for high-throughput applications.
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Affiliation(s)
- Tingting Yu
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Xiang Zhong
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Qihang Yang
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Chao Gao
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Wenyue Chen
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Xiang Liu
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Zhang Liu
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Tingting Zhu
- Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Dongyu Li
- Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Peng Fei
- Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Zaozao Chen
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
- Institute of Biomaterials and Medical Devices, Southeast University, Suzhou, Jiangsu, 215163, China
| | - Zhongze Gu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
- Institute of Biomaterials and Medical Devices, Southeast University, Suzhou, Jiangsu, 215163, China
| | - Dan Zhu
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
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23
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Ma XH, Feng WY, Xiao K, Zhong Z, Fei P, Zhao Y, Sun XF. Detection of Choroidal Neovascularization Using Optical Tissue Transparency. Transl Vis Sci Technol 2023; 12:10. [PMID: 37318439 PMCID: PMC10278551 DOI: 10.1167/tvst.12.6.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 05/10/2023] [Indexed: 06/16/2023] Open
Abstract
Purpose Optical tissue transparency (OTT) provides a tool for visualizing the entire tissue block. This study provides insights into the potential value of OTT with light-sheet fluorescence microscopy (LSFM) in detecting choroidal neovascularization (CNV) lesions. Methods OTT with LSFM, hematoxylin and eosin (H&E) staining of paraffin sections, choroidal flatmount immunofluorescence, and optical coherence tomography angiography (OCTA) were used to obtain images of CNV. We determined the rate of change as (Data of week 1 - Data of week 2)/Data of week 1 × 100%. Finally, we compared the rate of change acquired from OTT with LSFM and the other methodologies. Results We found that OTT with LSFM can realize three-dimensional (3D) visualizations of the entire CNV. The results showed that the decline in the rate of change from week 1 to week 2 after laser photocoagulation was 33.05% with OTT, 53.01% with H&E staining, 48.11% with choroidal flatmount, 24.06% with OCTA (B-scan), 18.08% with OCTA (en face), 10.98% with OCTA (3D reconstruction), and 7.74% with OCTA (vessel diameter index). Conclusions OTT with LSFM will continue to be an invaluable resource for investigators to detect more visualized and quantified information regarding CNV. Translational Relevance OTT with LSFM now serves as a tool for detecting CNV in mice, and it may undergo human clinical trials in the future.
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Affiliation(s)
- Xiao-Hong Ma
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
| | - Wen-Yang Feng
- School of Optical and Electronic Information–Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
| | - Ke Xiao
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
| | - Zheng Zhong
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
| | - Peng Fei
- School of Optical and Electronic Information–Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
| | - Yin Zhao
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
| | - Xu-Fang Sun
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
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24
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Wang K, Yu Y, Xu Y, Yue Y, Zhao F, Feng W, Duan Y, Duan W, Yue J, Liao Z, Fei P, Sun H, Xiong B. TSA-PACT: a method for tissue clearing and immunofluorescence staining on zebrafish brain with improved sensitivity, specificity and stability. Cell Biosci 2023; 13:97. [PMID: 37237300 DOI: 10.1186/s13578-023-01043-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 05/01/2023] [Indexed: 05/28/2023] Open
Abstract
For comprehensive studies of the brain structure and function, fluorescence imaging of the whole brain is essential. It requires large-scale volumetric imaging in cellular or molecular resolution, which could be quite challenging. Recent advances in tissue clearing technology (e.g. CLARITY, PACT) provide new solutions by homogenizing the refractive index of the samples to create transparency. However, it has been difficult to acquire high quality results through immunofluorescence (IF) staining on the cleared samples. To address this issue, we developed TSA-PACT, a method combining tyramide signal amplification (TSA) and PACT, to transform samples into hydrogel polymerization frameworks with covalent fluorescent biomarkers assembled. We show that TSA-PACT is able to reduce the opacity of the zebrafish brain by more than 90% with well-preserved structure. Compared to traditional method, TSA-PACT achieves approximately tenfold signal amplification and twofold improvement in signal-to-noise ratio (SNR). Moreover, both the structure and the fluorescent signal persist for at least 16 months with excellent signal retention ratio. Overall, this method improves immunofluorescence signal sensitivity, specificity and stability in the whole brain of juvenile and adult zebrafish, which is applicable for fine structural analysis, neural circuit mapping and three-dimensional cell counting.
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Affiliation(s)
- Kang Wang
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Department of Forensic Medicine, Nanjing Medical University, Nanjing, 211166, China
| | - Yuxin Yu
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yinhui Xu
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yingzi Yue
- Key Laboratory of Environment and Health (HUST), Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Fang Zhao
- School of Optical and Electronic Information- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Wenyang Feng
- School of Optical and Electronic Information- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yijie Duan
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Weicheng Duan
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jingjing Yue
- College of Engineering, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhiyun Liao
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Peng Fei
- School of Optical and Electronic Information- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
- MoE Key Laboratory for Biomedical Photonics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Hui Sun
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Bo Xiong
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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25
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Chen R, Tang X, Zhao Y, Shen Z, Zhang M, Shen Y, Li T, Chung CHY, Zhang L, Wang J, Cui B, Fei P, Guo Y, Du S, Yao S. Single-frame deep-learning super-resolution microscopy for intracellular dynamics imaging. Nat Commun 2023; 14:2854. [PMID: 37202407 DOI: 10.1038/s41467-023-38452-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 04/28/2023] [Indexed: 05/20/2023] Open
Abstract
Single-molecule localization microscopy (SMLM) can be used to resolve subcellular structures and achieve a tenfold improvement in spatial resolution compared to that obtained by conventional fluorescence microscopy. However, the separation of single-molecule fluorescence events that requires thousands of frames dramatically increases the image acquisition time and phototoxicity, impeding the observation of instantaneous intracellular dynamics. Here we develop a deep-learning based single-frame super-resolution microscopy (SFSRM) method which utilizes a subpixel edge map and a multicomponent optimization strategy to guide the neural network to reconstruct a super-resolution image from a single frame of a diffraction-limited image. Under a tolerable signal density and an affordable signal-to-noise ratio, SFSRM enables high-fidelity live-cell imaging with spatiotemporal resolutions of 30 nm and 10 ms, allowing for prolonged monitoring of subcellular dynamics such as interplays between mitochondria and endoplasmic reticulum, the vesicle transport along microtubules, and the endosome fusion and fission. Moreover, its adaptability to different microscopes and spectra makes it a useful tool for various imaging systems.
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Affiliation(s)
- Rong Chen
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Xiao Tang
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Yuxuan Zhao
- School of Optical and Electronic Information, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Zeyu Shen
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Meng Zhang
- School of Optical and Electronic Information, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Yusheng Shen
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Tiantian Li
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Casper Ho Yin Chung
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Lijuan Zhang
- School of Pharmaceutical Sciences, Guizhou University, 550025, Guizhou, China
| | - Ji Wang
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Binbin Cui
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Peng Fei
- School of Optical and Electronic Information, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Yusong Guo
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China.
| | - Shengwang Du
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
- Department of Physics, The Hong Kong University of Science and Technology, Hong Kong, China.
- Department of Physics, The University of Texas at Dallas, Richardson, TX, 75080, USA.
| | - Shuhuai Yao
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
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26
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Tian J, Fan Z, Ji Z, Li X, Fei P, Hou D. Multi-Parameter Estimation Method and Closed-Form Solution Study for k-µ Channel Model. Sensors (Basel) 2023; 23:4760. [PMID: 37430674 DOI: 10.3390/s23104760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/27/2023] [Accepted: 05/08/2023] [Indexed: 07/12/2023]
Abstract
This paper proposes a novel multi-parameter estimation algorithm for the k-µ fading channel model to analyze wireless transmission performance in complex time-varying and non-line-of-sight communication scenarios involving moving targets. The proposed estimator offers a mathematically tractable theoretical framework for the application of the k-µ fading channel model in realistic scenarios. Specifically, the algorithm obtains expressions for the moment-generating function of the k-µ fading distribution and eliminates the gamma function using the even-order moment value comparison method. It then obtains two sets of solution models for the moment-generating function at different orders, which enable the estimation of the k and µ parameters using three sets of closed-form solutions. The k and µ parameters are estimated based on received channel data samples generated using the Monte Carlo method to restore the distribution envelope of the received signal. Simulation results show strong agreement between theoretical and estimated values for the closed-form estimated solutions. Additionally, the differences in complexity, accuracy exhibited under different parameter settings, and robustness under decreasing SNR may make the estimators suitable for different practical application scenarios.
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Affiliation(s)
- Jie Tian
- Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China
| | - Zhongqing Fan
- Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China
| | - Zhengyu Ji
- Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China
| | - Xianglu Li
- Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China
| | - Peng Fei
- High-Tech Institute, The First School, Rocket Force University of Engineering, Xi'an 710025, China
| | - Dong Hou
- The School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
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27
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Zhu T, Nie J, Yu T, Zhu D, Huang Y, Chen Z, Gu Z, Tang J, Li D, Fei P. Large-scale high-throughput 3D culture, imaging, and analysis of cell spheroids using microchip-enhanced light-sheet microscopy. Biomed Opt Express 2023; 14:1659-1669. [PMID: 37078040 PMCID: PMC10110308 DOI: 10.1364/boe.485217] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/24/2023] [Accepted: 03/06/2023] [Indexed: 05/03/2023]
Abstract
Light sheet microscopy combined with a microchip is an emerging tool in biomedical research that notably improves efficiency. However, microchip-enhanced light-sheet microscopy is limited by noticeable aberrations induced by the complex refractive indices in the chip. Herein, we report a droplet microchip that is specifically engineered to be capable of large-scale culture of 3D spheroids (over 600 samples per chip) and has a polymer index matched to water (difference <1%). When combined with a lab-built open-top light-sheet microscope, this microchip-enhanced microscopy technique allows 3D time-lapse imaging of the cultivated spheroids with ∼2.5-µm single-cell resolution and a high throughput of ∼120 spheroids per minute. This technique was validated by a comparative study on the proliferation and apoptosis rates of hundreds of spheroids with or without treatment with the apoptosis-inducing drug Staurosporine.
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Affiliation(s)
- Tingting Zhu
- School of Optical and Electronic Information - Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jun Nie
- Institute for Cell Analysis, Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Tingting Yu
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
| | - Dan Zhu
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
| | - Yanyi Huang
- Institute for Cell Analysis, Shenzhen Bay Laboratory, Shenzhen 518132, China
- College of Chemistry, Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing 100871, China
| | - Zaozao Chen
- State Key Laboratory of Bioelectronics School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Zhongze Gu
- State Key Laboratory of Bioelectronics School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Jiang Tang
- School of Optical and Electronic Information - Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Dongyu Li
- School of Optical and Electronic Information - Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Peng Fei
- School of Optical and Electronic Information - Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan 430074, China
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28
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Zhu L, Yi C, Fei P. A practical guide to deep-learning light-field microscopy for 3D imaging of biological dynamics. STAR Protoc 2023; 4:102078. [PMID: 36853699 PMCID: PMC9898296 DOI: 10.1016/j.xpro.2023.102078] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/12/2022] [Accepted: 01/11/2023] [Indexed: 01/30/2023] Open
Abstract
Here, we present a step-by-step protocol for the implementation of deep-learning-enhanced light-field microscopy enabling 3D imaging of instantaneous biological processes. We first provide the instructions to build a light-field microscope (LFM) capable of capturing optically encoded dynamic signals. Then, we detail the data processing and model training of a view-channel-depth (VCD) neural network, which enables instant 3D image reconstruction from a single 2D light-field snapshot. Finally, we describe VCD-LFM imaging of several model organisms and demonstrate image-based quantitative studies on neural activities and cardio-hemodynamics. For complete details on the use and execution of this protocol, please refer to Wang et al. (2021).1.
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Affiliation(s)
- Lanxin Zhu
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Chengqiang Yi
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Peng Fei
- School of Optical and Electronic Information-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.
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29
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Chen X, Zheng X, Fan C, Song Q, Tian Z, Huang D, Li Y, Meng F, Chang Y, Wei X, Fei P. Antibacterial Pattern of Rosa roxburghii Tratt Pomace Crude Extract Against Staphylococcus aureus and Its Application in Preservation of Cooked Beef. Foodborne Pathog Dis 2023; 20:110-119. [PMID: 36893329 DOI: 10.1089/fpd.2022.0082] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023] Open
Abstract
Staphylococcus aureus is a common foodborne pathogen and spoilage bacterium in meat products. To develop a natural preservative for meat products, this study revealed the antibacterial activity and mechanism of Rosa roxburghii Tratt pomace crude extract (RRPCE) against S. aureus, and applied RRPCE to the preservation of cooked beef. The diameter of inhibition zone, minimum inhibitory concentration (MIC), and minimum bactericide concentration of RRPCE against S. aureus were 15.85 ± 0.35 to 16.21 ± 0.29 mm, 1.5 mg/mL, and 3 mg/mL, respectively. The growth curve of S. aureus was completely stalled by treatment with RRPCE at 2 MIC. RRPCE results in the decrease of intracellular adenosine 5'-triphosphate (ATP) content, depolarization of cell membrane, leakage of cell fluid including nucleic acid and protein, and destruction of cell membrane integrity and cell morphology. During storage, RRPCE significantly reduced S. aureus viable counts, pH, and total volatile basic nitrogen of cooked beef compared with untreated samples (p < 0.05). In addition, RRPCE could significantly increase the redness (a*) value, decrease lightness (L*) and yellowness (b*) values, and slow down the color change of cooked beef (p < 0.05). These findings suggest that RRPCE can effectively inhibit S. aureus, and has the potential as a natural preservative for the preservation of cooked beef.
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Affiliation(s)
- Xi Chen
- Institute of Integrated Agricultural Development Research, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Xiuyan Zheng
- Institute of Integrated Agricultural Development Research, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Chengwei Fan
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Qianhua Song
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Zhuxi Tian
- Institute of Integrated Agricultural Development Research, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Daomei Huang
- Institute of Integrated Agricultural Development Research, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Yongfu Li
- Institute of Integrated Agricultural Development Research, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Fanbo Meng
- Institute of Integrated Agricultural Development Research, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Yunhe Chang
- Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang, China
| | - Xiaoping Wei
- Institute of Integrated Agricultural Development Research, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Peng Fei
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
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30
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Liu J, Chen B, Hu Q, Zhang Q, Huang B, Fei P. Pectin grafted with resorcinol and 4-hexylresorcinol: Preparation, characterization and application in meat preservation. Int J Biol Macromol 2023; 237:124212. [PMID: 36977442 DOI: 10.1016/j.ijbiomac.2023.124212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023]
Abstract
To augment the functional attributes of pectin and expand its prospective utilization in food preservation, this research explored the enzymatic grafting of resorcinol and 4-hexylresorcinol onto pectin. Structural analysis verified the successful grafting of both resorcinol and 4-hexylresorcinol to pectin via esterification, with the 1-OH of resorcinol and 4-hexylresorcinol and the carboxyl group of pectin functioning as grafting sites. The grafting ratios of resorcinol-modified pectin (Re-Pe) and 4-hexylresorcinol-modified pectin (He-Pe) were 17.84 % and 10.98 %, respectively. This grafting modification notably enhanced the antioxidative and antibacterial properties of pectin. Specifically, DPPH clearance and the inhibition ratio in the β-carotene bleaching assay increased from 11.38 % and 20.13 % (native pectin, Na-Pe) to 41.15 % and 36.67 % (Re-Pe), and 74.72 % and 53.40 % (He-Pe). Moreover, the inhibition zone diameter against Escherichia coli and Staphylococcus aureus rose from 10.12 and 10.08 mm (Na-Pe) to 12.36 and 11.52 mm (Re-Pe), and 16.78 and 14.87 mm (He-Pe). Additionally, the application of native and modified pectin coatings effectively impeded pork spoilage, with the modified pectins demonstrating a more potent effect. Among the two modified pectins, He-Pe exhibited the most significant enhancement in pork shelf life.
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31
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Lv X, Wu Q, Huang X, Wu LL, Hu L, Fei P, Liu TM, Yu Q. Effect of Microwave Pretreatment on the Leaching and Enrichment Effect of Copper in Waste Printed Circuit Boards. ACS Omega 2023; 8:2575-2585. [PMID: 36687072 PMCID: PMC9850779 DOI: 10.1021/acsomega.2c07102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
The use of efficient and clean methods for the recycling of waste circuit boards is an ongoing challenge. In this research, the effect of microwave pretreatment on the leaching and enrichment of copper from waste print circuit board (WPCB) was studied. The morphology and chemical structure of WPCB particles before and after microwave pretreatment were analyzed by SEM/EDS and Fourier infrared spectroscopy. Leaching experiments and copper enrichment tests were designed to investigate the effect of different microwave irradiation powers and microwave irradiation times on the copper leaching rate and copper enrichment rate in WPCB. The leaching experiment results showed that microwave pretreatment can effectively improve the leaching rate of WPCB. When the microwave irradiation power was 700 W, the irradiation time was 120 s, and the leaching time was 15 min, the copper leaching rate in WPCB was 57.01%, which was 24.34% higher than that in the untreated condition. The results of copper enrichment experiment show that microwave pretreatment can effectively improve the copper enrichment of WPCB. After microwave pretreatment, copper was effectively enriched in the 4-2 and 2-1 mm particle sizes. When the microwave irradiation time was 120 s, the copper enrichment rates in the 4-2 and 2-1 mm particle sizes were 1.74 and 1.66, which increased by 0.63 and 0.32, respectively, compared to the untreated condition. Microwave pretreatment enables the effective separation of metallic copper from non-metallic components in WPCB, increasing the exposure area of copper and promoting the monomer separation of copper, thus improving the leaching and enrichment of copper.
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Affiliation(s)
- Xiang Lv
- School
of Resources, Environment and Safety Engineering, University of South China, Hengyang421001, China
- Key
Discipline Laboratory of Defense Biotechnology in Uranium Mining and
Hydrometallurgy, University of South China, Hengyang421001, China
| | - Qinqin Wu
- Hunan
Technical College of Railway High-speed, Hengyang421200, China
| | - Xiaobing Huang
- Hunan
Technical College of Railway High-speed, Hengyang421200, China
| | - Ling ling Wu
- School
of Resources, Environment and Safety Engineering, University of South China, Hengyang421001, China
- Key
Discipline Laboratory of Defense Biotechnology in Uranium Mining and
Hydrometallurgy, University of South China, Hengyang421001, China
| | - Lin Hu
- School
of Resources, Environment and Safety Engineering, University of South China, Hengyang421001, China
- Key
Discipline Laboratory of Defense Biotechnology in Uranium Mining and
Hydrometallurgy, University of South China, Hengyang421001, China
| | - Peng Fei
- School
of Resources, Environment and Safety Engineering, University of South China, Hengyang421001, China
- Key
Discipline Laboratory of Defense Biotechnology in Uranium Mining and
Hydrometallurgy, University of South China, Hengyang421001, China
| | - Tian ming Liu
- School
of Resources, Environment and Safety Engineering, University of South China, Hengyang421001, China
- Key
Discipline Laboratory of Defense Biotechnology in Uranium Mining and
Hydrometallurgy, University of South China, Hengyang421001, China
| | - Qing Yu
- School
of Resources, Environment and Safety Engineering, University of South China, Hengyang421001, China
- Key
Discipline Laboratory of Defense Biotechnology in Uranium Mining and
Hydrometallurgy, University of South China, Hengyang421001, China
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32
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Zheng C, Zou Y, Huang Y, Shen B, Fei P, Zhang G. Biosynthesis of amidated pectins with ultra-high viscosity and low gelation restriction through ultra-low temperature enzymatic method. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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33
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Zeng F, Ye Y, Liu J, Fei P. Intelligent pH indicator composite film based on pectin/chitosan incorporated with black rice anthocyanins for meat freshness monitoring. Food Chem X 2022; 17:100531. [PMID: 36845515 PMCID: PMC9943846 DOI: 10.1016/j.fochx.2022.100531] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/16/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
With the improvement of consumer awareness of food safety and the increasing concern about plastic pollution, the development of novel intelligent packaging film is imminent. This project aims to develop an environmentally friendly pH-sensitive intelligent food packaging film for meat freshness monitoring. In this study, anthocyanin-rich extract from black rice (AEBR) was added to composite film formed by the co-polymerisation of pectin and chitosan. AEBR showed strong antioxidant activity, and different colour responses to different conditions. The mechanical properties of the composite film remarkably improved when AEBR was incorporated into. Besides, the introduction of anthocyanins enables the colour of composite film to change from red to blue with the degree of meat spoilage increased which shows the indicative effect of composite films on meat putrification. Therefore, the AEBR-loaded pectin/chitosan film could be used as an indicator to monitor meat freshness in real-time.
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Affiliation(s)
- Fansen Zeng
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China,College of Food Science and Technology, Nanchang University, Nanchang 330000, PR China
| | - Yanqi Ye
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China,College of Biological Science and Engineering, Fuzhou University, Fuzhou 350000, PR China
| | - Jingna Liu
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China,Corresponding authors.
| | - Peng Fei
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China,Corresponding authors.
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34
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Zhao C, Chu Z, Mao Y, Xu Y, Fei P, Zhang H, Xu X, Wu Y, Zheng M, Liu J. Structural characteristics and acid-induced emulsion gel properties of heated soy protein isolate–soy oligosaccharide glycation conjugates. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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35
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Zhang H, Liu B, Fei P. Self-supervised next view prediction for limited-angle optical projection tomography. Biomed Opt Express 2022; 13:5952-5961. [PMID: 36733724 PMCID: PMC9872893 DOI: 10.1364/boe.472762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/01/2022] [Accepted: 10/05/2022] [Indexed: 06/18/2023]
Abstract
Optical projection tomography captures 2-D projections of rotating biological samples and computationally reconstructs 3-D structures from these projections, where hundreds of views with an angular range of π radian is desired for a reliable reconstruction. Limited-angle tomography tries to recover the structures of the sample using fewer angles of projections. However, the result is far from satisfactory due to the missing of wedge information. Here we introduce a novel view prediction technique, which is able to extending the angular range of captured views for the limited-angle tomography. Following a self-supervised technique that learns the relationship between the captured limited-angle views, unseen views can be computationally synthesized without any prior label data required. Combined with an optical tomography system, the proposed approach can robustly generate new projections of unknown biological samples and extends the angles of the projections from the original 60° to nearly 180°, thereby yielding high-quality 3-D reconstructions of samples even with highly incomplete measurement.
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Affiliation(s)
- Hao Zhang
- School of Optical and Electronic Information- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - BinBing Liu
- School of Optical and Electronic Information- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Peng Fei
- School of Optical and Electronic Information- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
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36
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Chang Y, Xia S, Fei P, Feng H, Fan F, Liu Y, Qin L, Ma L, Song Q, Liu Y. Houttuynia cordata Thunb. crude extract inactivates Cronobacter sakazakii: Antibacterial components, antibacterial mechanism, and application as a natural disinfectant. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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37
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Fei P, Zhang Z, Wu Y, Xiao L, Zhuang Y, Ding N, Huang B. Non-radical synthesis of amide chitosan with p-coumaric acid and caffeic acid and its application in pork preservation. Int J Biol Macromol 2022; 222:1778-1788. [PMID: 36195228 DOI: 10.1016/j.ijbiomac.2022.09.263] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/19/2022]
Abstract
p-Coumaric acid and caffeic acid were grafted onto chitosan through a non-radical synthesis method to improve the properties of chitosan and expand its application in food industry. Structural characterization demonstrated that the -COOH of the two phenolic acids were bonded to the -NH2 of the chitosan and formed an acylamino. The grafting ratios of p-coumaric acid-modified chitosan (Cm-CTS) and caffeic acid-modified chitosan (Cf-CTS) reached 10.30 % and 9.78 %, respectively. After modification, the water solubility of the chitosan greatly improved from 9.33 % (native chitosan, Nt-CTS) to 77.33 % (Cm-CTS) and 100 % (Cf-CTS). Besides, the involvement of phenolic acid and caffeic acid endowed the chitosan with strengthened antioxidation and antibacterial activities against Escherichia coli and Staphylococcus aureus. Nt-CTS and the modified chitosans were coated on the pork surface. The results indicated that Nt-CTS effectively inhibited pork spoilage and the modified chitosans could further prolong the shelf life of pork.
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Affiliation(s)
- Peng Fei
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China
| | - Zhigang Zhang
- State Key Laboratory of Food Safety Technology for Meat Products, Yinxiang Group Co., Ltd., Xiamen 361100, China
| | - Youlin Wu
- Fujian Aonong BiologicaI Science and Technology Group Co., Ltd., Zhangzhou 363000, China
| | - Liping Xiao
- Fujian Aonong BiologicaI Science and Technology Group Co., Ltd., Zhangzhou 363000, China
| | - Yuanhong Zhuang
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China
| | - Nengshui Ding
- Fujian Aonong BiologicaI Science and Technology Group Co., Ltd., Zhangzhou 363000, China; Jiangxi Agricultural University, Nanchang 330000, China.
| | - Bingqing Huang
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China.
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38
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Wang P, Liu J, Zhuang Y, Fei P. Acylating blueberry anthocyanins with fatty acids: Improvement of their lipid solubility and antioxidant activities. Food Chem X 2022; 15:100420. [PMID: 36211770 PMCID: PMC9532753 DOI: 10.1016/j.fochx.2022.100420] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 12/13/2022] Open
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Huang Y, Shen B, Zheng C, Huang B, Zhang G, Fei P. Synthesis of Chitosan ‐Phenolic Acid copolymer: Exploration of Structural and Physicochemical Properties. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.16097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yufan Huang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology Minnan Normal University Zhangzhou 363000 P.R. China
| | - Bihua Shen
- Key Laboratory of Modern Analytical Science and Separation Technology, College of Chemistry, Chemical Engineering and Environment Minnan Normal University Zhangzhou 363000 P.R. China
| | - Chenmin Zheng
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology Minnan Normal University Zhangzhou 363000 P.R. China
| | - Bingqing Huang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology Minnan Normal University Zhangzhou 363000 P.R. China
| | - Guoguang Zhang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology Minnan Normal University Zhangzhou 363000 P.R. China
| | - Peng Fei
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology Minnan Normal University Zhangzhou 363000 P.R. China
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Shen B, Zhang Q, Zheng C, Huang Y, Zhang G, Fei P, Hu S. Construction of double-network hydrogel based on low methoxy pectin/polyvinyl alcohol and its structure and properties. Int J Biol Macromol 2022; 221:821-830. [PMID: 36089090 DOI: 10.1016/j.ijbiomac.2022.09.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/31/2022] [Accepted: 09/05/2022] [Indexed: 11/29/2022]
Abstract
In this study, an interpenetrating double-network hydrogel (LMP/AA/PVAH) was prepared based on low methoxy pectin (LMP), acrylic acid (AA) and polyvinyl alcohol (PVA). The first rigid network of chemical crosslinking was constructed via free radical polymerization of LMP and AA, and the second of ductile physical crosslinking network was constructed via cyclic freeze-thaw of PVA. The first cycle hardness and elasticity of the LMP/AA/PVAH significantly increased from 13.08 N and 0 to 24.28 N and 0.79, respectively, when the second network structure was constructed in the hydrogel by PVA. Besides, the PVA network might enhance the ductile and limit the swelling of hydrogel. In addition, the adsorption properties of LMP/AA/PVAH were evaluated by adsorption of methylene blue (MB). The adsorption behavior of MB by LMP/AA/PVAH conformed to the pseudo-second-order kinetic model. Besides, after 4 cycles of adsorption, there was no significant difference in adsorption capacity of LMP/AA/PVAH. The results showed that LMP/AA/PVAH had good reusability.
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Affiliation(s)
- Bihua Shen
- Key Laboratory of Modern Analytical Science and Separation Technology, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Qiong Zhang
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Chenmin Zheng
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Yufan Huang
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Guoguang Zhang
- Key Laboratory of Modern Analytical Science and Separation Technology, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Peng Fei
- Key Laboratory of Modern Analytical Science and Separation Technology, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
| | - Shirong Hu
- Key Laboratory of Modern Analytical Science and Separation Technology, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
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Wang M, Zhu T, Liu C, Jin L, Fei P, Zhang B. Oviduct-mimicking microfluidic chips decreased the ROS concentration in the in vitro fertilized embryos of CD-1 mice. Biomed Pharmacother 2022; 154:113567. [PMID: 36007278 DOI: 10.1016/j.biopha.2022.113567] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/07/2022] [Accepted: 08/15/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The process of the assisted reproductive technology (ART) cycle is extremely complicated, and various factors in each step may influence the final clinical outcomes; thus, optimizing culture conditions for embryos is crucial in the ART cycle, particularly when the traditional petri-dish method remains unchanged for decades. In the current study, we intend to culture embryos in a dynamic environment on chips to optimize the embryo culture conditions. METHODS Multilayer soft lithography technology was utilized to establish a microfluidics-based oviduct. Mouse primary oviduct epithelial cells were identified by immunofluorescence staining and then loaded into the chip to coculture with the embryos. The development potential parameters of embryos on chips with cells, on chips without cells, and in drops were compared, as well as reactive oxygen species (ROS) in embryos. RESULTS There were no obvious differences regarding the fertilization rate, 4-Cell embryo rate, cleavage rate, high-quality embryo rate, or blastocyst formation rate. However, the intracellular ROS levels in 4-Cell stage embryos on chips with cells were statistically significantly lower than those in drops (P < 0.001). This organ-on-chip device allowed the probability of mammalian embryo culture in a microfluidic-based manner. CONCLUSIONS Our findings demonstrated that this novel oviduct-on-chip model may optimize embryo culture conditions by reducing intracellular ROS levels, which may be a competent alternative to the existing stable embryo culture system.
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Affiliation(s)
- Meng Wang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tingting Zhu
- School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
| | - Chang Liu
- Reproductive Medicine Center, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, China
| | - Lei Jin
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Fei
- School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Zhang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Zheng C, Huang W, Zou Y, Huang W, Fei P, Zhang G. Fabrication of phenylalanine amidated pectin using ultra-low temperature enzymatic method and its hydrogel properties in drug sustained release application. Int J Biol Macromol 2022; 216:263-271. [PMID: 35788006 DOI: 10.1016/j.ijbiomac.2022.06.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/18/2022] [Accepted: 06/26/2022] [Indexed: 11/05/2022]
Abstract
In this study, pectin was modified with phenylalanine by ultra-low temperature enzymatic method to improve its gel properties. The grafting ratio of phenylalanine amidated pectin was studied under different reaction conditions. The highest value (29.21 %) was reached a reaction temperature of -5 °C and time of 12 h. Further analysis indicated that phenylalanine and high methoxyl pectin combined at the solid-liquid two phase interface under the catalysis of papain to form phenylalanine amidated pectin. Moreover, the physicochemical properties of pectin hydrogel and its feasibility as a sustained-release drug carrier were discussed. The results showed that phenylalanine amidated pectin can form hydrogel with a certain strength under acidic conditions, and there is no need to add a lot of soluble solids and divalent cations. Besides, the phenylalanine amidated pectin hydrogel as a sustained release carrier of drugs showed more sustained and complete drug release.
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Affiliation(s)
- Chenmin Zheng
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Wanping Huang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Yuping Zou
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Wensi Huang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Peng Fei
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
| | - Guoguang Zhang
- The Engineering Technological Center of Mushroom Industry, School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
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Jiang W, Chen L, Wang J, Shao X, Jiang M, Chen Z, Wang J, Huang Y, Fei P. Open-top light-sheet imaging of CLEAR emulsion for high-throughput loss-free analysis of massive fluorescent droplets. Biomed Phys Eng Express 2022; 8. [PMID: 35767965 DOI: 10.1088/2057-1976/ac7d0f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/29/2022] [Indexed: 11/12/2022]
Abstract
Digital droplet PCR (ddPCR) is classified as the third-generation PCR technology that enables absolute quantitative detection of nucleic acid molecules and has become an increasingly powerful tool for clinic diagnosis. We previously established a CLEAR-dPCR technique based on the combination of CLEAR droplets generated by micro-centrifuge-based microtubule arrays (MiCA) andinsitu3D readout by light-sheet fluorescence imaging. This CLEAR-dPCR technique attains very high readout speed and dynamic range. Meanwhile, it is free from sample loss and contamination, showing its advantages over commercial d-PCR technologies. However, a conventional orthogonal light-sheet imaging setup in CLEAR d-PCR cannot image multiple centrifuge tubes, thereby limiting its widespread application to large-scale, high-speed dd-PCR assays. Herein, we propose an in-parallel 3D dd-PCR readout technique based on an open-top light-sheet microscopy setup. This approach can continuously scan multiple centrifuge tubes which contain CLEAR emulsions with highly diverse concentrations, and thus further boost the scale and throughput of our 3D dd-PCR technique.
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Affiliation(s)
- Wen Jiang
- School of Optical and Electronic Information , Huazhong University of Science and Technology, E417, Wuhan, Hubei, 430074, CHINA
| | - Longbiao Chen
- School of Optical and Electronic Information , Huazhong University of Science and Technology, E417, Wuhan, Hubei, 430074, CHINA
| | - Jie Wang
- Huazhong University of Science and Technology, E417, School of Optical and Electronic Information, Wuhan, Hubei, 430074, CHINA
| | - Xinyang Shao
- Peking-Tsinghua Center for Life Sciences, Peking University, Peking-Tsinghua Center for Life Sciences, Beijing, Beijing, 100871, CHINA
| | - Mengcheng Jiang
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Biomedical Pioneering Innovation Center (BIOPIC), Beijing, Beijing, 100871, CHINA
| | - Zitian Chen
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Biomedical Pioneering Innovation Center (BIOPIC), Beijing, Beijing, 100871, CHINA
| | - Jianbin Wang
- School of Life Sciences, Tsinghua University, School of Life Sciences, Beijing, Beijing, 100084, CHINA
| | - Yanyi Huang
- College of Engineering, and Biodynamic Optical Imaging Center (BIOPIC), Peking University, College of Engineering, and Biodynamic Optical Imaging Center (BIOPIC), Beijing, 100871, CHINA
| | - Peng Fei
- School of Optical and Electronic Information, Huazhong University of Science and Technology, E417, Wuhan, 430074, CHINA
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Qian W, Dequan L, Yiran X, Fei P, Juan-Ying L, Feng W, Yanping C, Ruihua S, Siquan T. Occurrence of polycyclic aromatic hydrocarbons (PAHs) in the seafood from an important fishing area in the East China Sea and a comparison between seafood from different origins. Environ Monit Assess 2022; 194:528. [PMID: 35748927 DOI: 10.1007/s10661-022-10153-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 05/28/2022] [Indexed: 06/15/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) were analyzed in a variety of coastal marine seafood from the Wentai fishing area, which is in proximity to highly urbanized areas and provides a significant portion of the marine aquatic products in Eastern China. Specifically, total PAHs ranged from 320 to 2500 ng/g d.w., whereas carcinogenic PAHs ranged from 21 to 92 ng/g d.w. According to the source diagnosis, the PAHs in the seafood were generally from sources highly related to fossil fuel. Thus, it is necessary to control the unintentional use of fossil fuels and optimize the energy structure in the terrestrial area nearby. Moreover, the food chain structure and the environmental behavior of PAHs through the food chain, which are relevant to dietary risk, were assessed. The δ15N values fell in a narrow range, which indicates a relatively short food chain, which is due to overfishing in this area. Furthermore, in this shortened food chain, the trophic magnification factors (TMFs) ranged from 0.23 to 6.6, which were generally higher than those in more complex food chains. The cancer risk (ILCR) ranged from 2.2 × 10-8 to 2.2 × 10-6. It is noted that the carcinogenic risk of consuming yellow croaker, which is one of the most popular seafood among people on the east coast of China, was the highest. In conclusion, trophic magnification implied a possible elevated risk through this marine food chain, and overfishing may have increased the uncertainty associated with TMF estimations.
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Affiliation(s)
- Wang Qian
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| | - Lu Dequan
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| | - Xiong Yiran
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| | - Peng Fei
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| | - Li Juan-Ying
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| | - Wu Feng
- College of Marine Sciences, Shanghai Ocean University, Shanghai, China.
| | - Chu Yanping
- Pudong Environmental Monitoring Station, Shanghai, China
| | - Sun Ruihua
- Pudong Environmental Monitoring Station, Shanghai, China
| | - Tian Siquan
- College of Marine Sciences, Shanghai Ocean University, Shanghai, China
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Fei P, Jing H, Ma Y, Dong G, Chang Y, Meng Z, Jiang S, Xie Q, Li S, Chen X, Yang W. Cronobacter spp. in Commercial Powdered Infant Formula Collected From Nine Provinces in China: Prevalence, Genotype, Biofilm Formation, and Antibiotic Susceptibility. Front Microbiol 2022; 13:900690. [PMID: 35711752 PMCID: PMC9197194 DOI: 10.3389/fmicb.2022.900690] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/19/2022] [Indexed: 12/17/2022] Open
Abstract
The purpose of this study was to investigate the prevalence of Cronobacter spp. in commercial powdered infant formula (PIF) from nine provinces in China from March 2018 to September 2020, and to reveal the genotype, biofilm-forming ability, and antibiotic susceptibility of these isolates. A total of 27 Cronobacter strains, consisting of 22 Cronobacter sakazakii strains, 3 Cronobacter malonaticus strains, 1 Cronobacter turicensis strain, and 1 Cronobacter dublinensis strain, were isolated from 3,600 commercial PIF samples with a prevalence rate of 0.75%. Compared with the other 8 provinces, PIF from Shaanxi province had a higher prevalence rate (1.25%) of Cronobacter spp. These isolates were divided into 14 sequence types (STs), and 6 Cronobacter serotypes. The main Cronobacter STs were ST4, ST1, and ST64, and the dominant Cronobacter serotype was C. sakazakii serotype O2. Approximately 88.89% of Cronobacter isolates had a strong ability (OD595 > 1) to form biofilms on tinplate, among which the strains with ST4 were more dominant. All isolates were susceptible to ampicillin-sulbactam, ceftriaxone, cefotaxime, sulfadiazine, sulfadoxine, trimethoprim-sulfamethoxazole, gentamicin, tetracycline, ciprofloxacin, and colistin, while 55.56 and 96.30% isolates were resistant to cephalothin and vancomycin, respectively. Taken together, our findings highlighted the contamination status and characterization of Cronobacter spp. in commercial PIF from nine provinces of China, and provided guidance for the effective prevention and control of this pathogen in the production of PIF.
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Affiliation(s)
- Peng Fei
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - He Jing
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Yan Ma
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Gege Dong
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Yunhe Chang
- Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang, China
| | - Zhaoxu Meng
- Inner Mongolia Meng Niu Dairy Industry (Group) Co. Ltd. R&D Center, Hohhot, China
| | | | - Qinggang Xie
- Heilongjiang Feihe Dairy Co., Ltd., Beijing, China
| | - Shuzhen Li
- Department of Immunology, College of Basic Medical Sciences, Shenyang Medical College, Shenyang, China
| | - Xi Chen
- Institute of Integrated Agricultural Development Research, Guizhou Academy of Agriculrural Sciences, Guiyang, China
| | - Weiwei Yang
- The Department of Food Science, Shenyang Medical College, Shenyang Medical College, Shenyang, China
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Fei P, Xing M, Feng Y, Liu S, Chang Y, Wang Y, Yu Y, Shi E, Zhang Y, Bian X, Chen J. Occurrence, Molecular Characterization, and Antibiotic Resistance of Cronobacter sakazakii in Goat Milk-Based Infant Formula from Shaanxi Province, China. Foodborne Pathog Dis 2022; 19:304-310. [PMID: 35447050 DOI: 10.1089/fpd.2021.0095] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
This study aimed to investigate the prevalence of Cronobacter sakazakii in goat milk-based infant formula (GIF) collected from Shaanxi Province, China, and reveal the molecular characterization and antibiotic resistance profile of these isolates. A total of 750 GIF samples were collected from the retail markets in 5 cities in Shaanxi Province from February 2019 to February 2021. Molecular characterization was investigated using multilocus sequence typing and O-antigen serotyping. Antibiotic resistance of C. sakazakii isolates was assessed using antimicrobial susceptibility testing. Thirty-two strains of C. sakazakii were isolated from GIF samples with a prevalence rate of 4.27% and were divided into 16 sequence types (STs); among them, ST4 (6/32, 18.75%) and ST21 (5/32, 15.63%) were dominant. Five C. sakazakii serotypes (O2, O1, O7, O4, and O3) were detected, and C. sakazakii serotype O2 (15/32, 46.88%) was the main. Of the 21 antimicrobials, isolates showed higher resistance against cephalothin (87.5%), amoxicillin (25%), azithromycin (18.75%), oxytetracycline (18.75%), ampicillin (12.5%), and streptomycin (12.5%). In addition, three isolates were found to be resistant to three antimicrobials. These findings revealed the potential epidemiological risk and characterization of C. sakazakii in GIF from Shaanxi Province, China, and provided reference data for the effective prevention and control of C. sakazakii in powdered infant formula.
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Affiliation(s)
- Peng Fei
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China.,School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China.,College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
| | - Min Xing
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
| | - Yage Feng
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Shun Liu
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Yajing Chang
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Yao Wang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
| | - Yaping Yu
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Encong Shi
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Yaqing Zhang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
| | - Xin Bian
- Key Laboratory of Food Science and Engineering of Heilongjiang Province, College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Junliang Chen
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
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Uemura T, Suzuki-Kouyama E, Kawase S, Kurihara T, Yasumura M, Yoshida T, Fukai S, Yamazaki M, Fei P, Abe M, Watanabe M, Sakimura K, Mishina M, Tabuchi K. Neurexins play a crucial role in cerebellar granule cell survival by organizing autocrine machinery for neurotrophins. Cell Rep 2022; 39:110624. [PMID: 35385735 DOI: 10.1016/j.celrep.2022.110624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 02/22/2022] [Accepted: 03/15/2022] [Indexed: 01/22/2023] Open
Abstract
Neurexins (NRXNs) are key presynaptic cell adhesion molecules that regulate synapse formation and function via trans-synaptic interaction with postsynaptic ligands. Here, we generate cerebellar granule cell (CGC)-specific Nrxn triple-knockout (TKO) mice for complete deletion of all NRXNs. Unexpectedly, most CGCs die in these mice, and this requirement for NRXNs for cell survival is reproduced in cultured CGCs. The axons of cultured Nrxn TKO CGCs that are not in contact with a postsynaptic structure show defects in the formation of presynaptic protein clusters and in action-potential-induced Ca2+ influxes. These cells also show impaired secretion of depolarization-induced, fluorescence-tagged brain-derived neurotrophic factor (BDNF) from their axons, and the cell-survival defect is rescued by the application of BDNF. These results suggest that CGC survival is maintained by autocrine neurotrophic factors and that NRXNs organize the presynaptic protein clusters and the autocrine neurotrophic-factor secretory machinery independent of contact with postsynaptic ligands.
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Affiliation(s)
- Takeshi Uemura
- Division of Gene Research, Research Center for Advanced Science, Shinshu University, Nagano 390-8621, Japan; Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano 390-8621, Japan; Department of Molecular and Cellular Physiology, Institute of Medicine, Academic Assembly, Shinshu University, Nagano 390-8621, Japan; Department of Molecular Neurobiology and Pharmacology, Graduate School of Medicine, University of Tokyo, Tokyo 113-0033, Japan; JST CREST, Saitama 332-0012, Japan.
| | - Emi Suzuki-Kouyama
- Department of Molecular and Cellular Physiology, Institute of Medicine, Academic Assembly, Shinshu University, Nagano 390-8621, Japan; JST CREST, Saitama 332-0012, Japan
| | - Shiori Kawase
- Division of Gene Research, Research Center for Advanced Science, Shinshu University, Nagano 390-8621, Japan; Department of Molecular and Cellular Physiology, Institute of Medicine, Academic Assembly, Shinshu University, Nagano 390-8621, Japan; JST CREST, Saitama 332-0012, Japan
| | - Taiga Kurihara
- Department of Molecular and Cellular Physiology, Institute of Medicine, Academic Assembly, Shinshu University, Nagano 390-8621, Japan
| | - Misato Yasumura
- Department of Molecular Neurobiology and Pharmacology, Graduate School of Medicine, University of Tokyo, Tokyo 113-0033, Japan; Department of Anatomy and Neuroscience, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Tomoyuki Yoshida
- Department of Molecular Neurobiology and Pharmacology, Graduate School of Medicine, University of Tokyo, Tokyo 113-0033, Japan; Department of Molecular Neuroscience, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan; JST PRESTO, Saitama 332-0012, Japan
| | - Shuya Fukai
- JST CREST, Saitama 332-0012, Japan; Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Maya Yamazaki
- Department of Cellular Neurobiology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Peng Fei
- Department of Cellular Neurobiology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Manabu Abe
- Department of Cellular Neurobiology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan; Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Masahiko Watanabe
- Department of Anatomy, Faculty of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Kenji Sakimura
- Department of Cellular Neurobiology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan; Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Masayoshi Mishina
- Department of Molecular Neurobiology and Pharmacology, Graduate School of Medicine, University of Tokyo, Tokyo 113-0033, Japan; Brain Science Laboratory, Research Organization of Science and Technology, Ritsumeikan University, Shiga 525-8577, Japan
| | - Katsuhiko Tabuchi
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Nagano 390-8621, Japan; Department of Molecular and Cellular Physiology, Institute of Medicine, Academic Assembly, Shinshu University, Nagano 390-8621, Japan; JST PRESTO, Saitama 332-0012, Japan.
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Zheng C, Zhang Z, Ding N, Huang B, Zhang G, Fei P. Synthesis of amidated pectin with amino acid using ultra-low temperature enzymatic method and its evaluation of fat mimic characteristics. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107454] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Shen B, Guo Z, Huang B, Zhang G, Fei P, Hu S. Preparation of hydrogels based on pectin with different esterification degrees and evaluation of their structure and adsorption properties. Int J Biol Macromol 2022; 202:397-406. [PMID: 34995665 DOI: 10.1016/j.ijbiomac.2021.12.160] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/18/2021] [Accepted: 12/25/2021] [Indexed: 01/15/2023]
Abstract
In this study, pectin (Pe) with different esterification degrees was used as raw materials to prepared hydrogel adsorbents via free radical polymerization. The effect of Pe esterification degree on hydrogel structure and adsorption performance was studied by FTIR, SEM and XPS characterization and copper ion adsorption experiment. The results demonstrated that the carboxyl group in the hydrogels was bonded to Cu2+ through electrostatic force and coordination, which was an important factor in its adsorption capacity. The hydrogels prepared from Pe with low esterification degree had finer pores and higher carboxyl content, so the adsorption capacity on both water and Cu2+ was stronger. The preparation of hydrogels from low-ester Pe was more conducive to the adsorption of copper ions. Besides, the adsorption behavior of the hydrogels on Cu2+ was investigated through the adsorption thermodynamics and kinetics. The results indicated that the adsorption kinetics of the hydrogels was in accordance with the quasi-second-order model. The adsorption of Cu2+ by hydrogels was the result of physical and chemical adsorption, which was endothermic under natural condition, and a higher temperature will result in more favorable spontaneous adsorption.
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Affiliation(s)
- Bihua Shen
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Zhengli Guo
- Laixi Food and Drug Administration, Qingdao 266000, PR China
| | - Bingqing Huang
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Guoguang Zhang
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
| | - Peng Fei
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
| | - Shirong Hu
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, PR China; School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, PR China.
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Xing M, Liu S, Yu Y, Guo L, Wang Y, Feng Y, Fei P, Kang H, Ali MA. Antibacterial Mode of Eucommia ulmoides Male Flower Extract Against Staphylococcus aureus and Its Application as a Natural Preservative in Cooked Beef. Front Microbiol 2022; 13:846622. [PMID: 35350615 PMCID: PMC8957902 DOI: 10.3389/fmicb.2022.846622] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 02/10/2022] [Indexed: 12/05/2022] Open
Abstract
The research was conducted to elucidate the antibacterial performance and mode of action of Eucommia ulmoides male flower extract (EUMFE) against Staphylococcus aureus and its application as a natural preservative in cooked beef. The antibacterial activity was evaluated by determining the diameter of inhibition zone (DIZ), minimum inhibitory concentration (MIC), and minimum bactericide concentration (MBC). The changes in membrane potential, contents of bacterial DNA and protein, integrity and permeability of the cell membrane, and cell morphology were analyzed to reveal the possible mode of action. The effect of EUMFE on the counts of S. aureus, pH, color, total volatile basic nitrogen (TVB-N), and thiobarbituric acid reactive substances (TBARS) of the cooked beef stored at 4°C for 9 days were studied. The results showed that the DIZ, MIC, and MBC of EUMFE against S. aureus were 12.58 ± 0.23 mm, 40 mg/mL, and 80 mg/mL, respectively. The mode of action of EUMFE against S. aureus included hyperpolarization of cell membrane, decrease in bacterial DNA and protein contents, destruction of cell membrane integrity, increase in cell membrane permeability, and damage of cell morphology. After treatments with EUMFE, the growth of S. aureus and lipid oxidation in cooked beef were significantly inhibited (P < 0.05). The pH and TVB-N values of cooked beef treated with EUMFE were significantly reduced as compared to control group (P < 0.05). The color of cooked beef samples containing EUMFE showed decreased L* and b* values, and increased a* and ΔE* values. Therefore, our findings showed that EUMFE had a good antibacterial effect on S. aureus, and provided a theoretical basis for the application of EUMFE as a natural preservative in the preservation of cooked beef.
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Affiliation(s)
- Min Xing
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China.,Henan International Joint Laboratory of Food Green Processing and Quality Safety Control, Henan University of Science and Technology, Luoyang, China
| | - Shun Liu
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Yaping Yu
- Key Lab of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Ling Guo
- Key Lab of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Yao Wang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China.,Henan International Joint Laboratory of Food Green Processing and Quality Safety Control, Henan University of Science and Technology, Luoyang, China
| | - Yage Feng
- School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Peng Fei
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China.,Henan International Joint Laboratory of Food Green Processing and Quality Safety Control, Henan University of Science and Technology, Luoyang, China.,School of Zhang Zhongjing Health Care and Food, Nanyang Institute of Technology, Nanyang, China
| | - Huaibing Kang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China.,Henan International Joint Laboratory of Food Green Processing and Quality Safety Control, Henan University of Science and Technology, Luoyang, China
| | - Md Aslam Ali
- Department of Agro-Processing, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
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