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Zhang G, Zhao W, Liu W, Zhou J, Wu Z. A Cytidine-Modified surfactant anchored liquid crystal Droplet-Based sensor for rapid and accurate detection of silver ions. J Colloid Interface Sci 2023; 650:58-66. [PMID: 37392500 DOI: 10.1016/j.jcis.2023.06.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/12/2023] [Accepted: 06/16/2023] [Indexed: 07/03/2023]
Abstract
Liquid crystal (LC) droplets exhibit unique and sensitive response behaviors to surface absorptions, making them promising candidates for sensing aplications. Here, we have developed a label-free, portable, and cost-effective sensor for the specific and rapid detection of silver ions (Ag+) in drinking-water samples. To achieve this, we have modified cytidine into a surfactant (denoted as C10-M-C) and anchored it onto the surface of LC droplets. The specific binding ability between cytidine and Ag+ enables LC droplets anchored with C10-M-C to respond rapidly and specifically to Ag+ ions. Furthermore, the sensitivity of the response meets requirements for the harmless concentration of Ag+ in drinking-water. The sensor we developed is label-free, portable, and cost-effectively. We believe that the sensor reported here can be applied to the detection of Ag+ in drinking-water and environmental samples.
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Affiliation(s)
- Guannan Zhang
- State Key Laboratory of Chemo/Bio-sensing and Chemo-metrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Wenting Zhao
- State Key Laboratory of Chemo/Bio-sensing and Chemo-metrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Wenzhao Liu
- State Key Laboratory of Chemo/Bio-sensing and Chemo-metrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Jun Zhou
- State Key Laboratory of Chemo/Bio-sensing and Chemo-metrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Zhaoyang Wu
- State Key Laboratory of Chemo/Bio-sensing and Chemo-metrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China.
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Xia N, Wan W, Zhu S, Liu Q. Synthesis of Hydrophobic Propionyl Neohesperidin Ester Using an Immobilied Enzyme and Description of Its Anti-proliferative and Pro-apoptotic Effects on MCF-7 Human Breast Cancer Cells. Front Bioeng Biotechnol 2020; 8:1025. [PMID: 32984288 PMCID: PMC7487361 DOI: 10.3389/fbioe.2020.01025] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 08/05/2020] [Indexed: 01/06/2023] Open
Abstract
Neohesperidin (NH) is a natural flavonoid glycoside compound with considerable physiological and pharmacological activities. However, its bioavailability is limited due to poor solubility, and few studies have so far attempted improve the solubility and bioavailability of NH. In this study, we structurally modified NH using an immobilized lipase to improve lipophilicity and therefore expand its applicability in lipophilic media as well as enhance its bioavailability in vivo. In addition, we aimed investigated the pro-apoptoptotic activity of this new compound (propionyl neohesperidin ester, PNHE) in MCF-7 breast cancer cells using a variety of cellular assays, including the MTT (3-(4, 5-dimethyl- 2-thiazolyl)-2, 5-diphenyl-2-h-tetrazolium bromide assay, assessment of intracellular reactive oxygen species (ROS) levels, and flow cytometry. We successfully synthesized PNHE using immobilized lipases, and the esterification of NH was confirmed by Fourier transform-infrared spectroscopy (FT-IR). Compared to NH, HNPE showed higher anti-proliferative and pro-apoptotic in MCF-7 breast cancer cells, which may be explained by its increased lipophilicity compared to neohesperidin, benefiting to the action of NH on the cancer cell wall. The IC50 of PNHE for inducing apoptosis of MCF-7 cells was 185.52 μg/mL. PNHE increased both the proportion of cells in Sub-G1 phase and the cellular ROS content, indicating a certain therapeutic effect of HNPE on breast cancer.
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Affiliation(s)
- Na Xia
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China.,College of Life and Geographic Sciences, Kashi University, Kashi, China
| | - Wenjing Wan
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Siming Zhu
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China.,Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou, China.,Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, China
| | - Qiang Liu
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
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Yang RL, Zhao XJ, Wu TT, Bilal M, Wang ZY, Luo HZ, Yang WJ. A novel and highly regioselective biocatalytic approach to acetylation of helicid by using whole-cell biocatalysts in organic solvents. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.105707] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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4
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Li XF, Yuan T, Xu H, Xin X, Zhao G, Wu H, Xiao X. Whole-Cell Catalytic Synthesis of Puerarin Monoesters and Analysis of Their Antioxidant Activities. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:299-307. [PMID: 30558414 DOI: 10.1021/acs.jafc.8b05805] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Puerarin, an important isoflavonoid from the edible root of Pueraria lobata, shows multiple bioactivities but suffers from low bioavailability. In this study, a new whole-cell catalytic method for acylation modification of puerarin was developed. Among the 12 strains tested, Aspergillus oryzae showed the highest catalytic activity and selectively catalyzed acylation of puerarin at the 6″-hydroxyl group. The organic solvents used significantly influenced the catalytic efficiency of the cells. In the green solvent 2-methyltetrahydrofuran, the reaction showed high substrate conversion (92.5%) and regioselectivity (95.8%), with results similar to those with tetrahydrofuran (94.2% and 98.5%, respectively) under optimal conditions. The monoester products showed higher liposolubility in comparison to puerarin, and those with C3-C8 fatty acid chain lengths showed evidently improved antioxidant activity toward erythrocyte hemolysis. Considering the operational stability of the cells and efficiency of the scaled-up reactions, this method is efficient and cost effective, with promising applications in the health food industry.
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Affiliation(s)
- Xiao-Feng Li
- School of Food Sciences and Engineering , South China University of Technology , Wushan Road 381 , Guangzhou 510641 , People's Republic of China
| | - Tingting Yuan
- School of Food Sciences and Engineering , South China University of Technology , Wushan Road 381 , Guangzhou 510641 , People's Republic of China
| | - Haixia Xu
- School of Food Sciences and Engineering , South China University of Technology , Wushan Road 381 , Guangzhou 510641 , People's Republic of China
| | - Xuan Xin
- School of Food Sciences and Engineering , South China University of Technology , Wushan Road 381 , Guangzhou 510641 , People's Republic of China
| | - Guanglei Zhao
- State Key Laboratory of Pulp and Paper Engineering , South China University of Technology , Wushan Road 381 , Guangzhou 510641 , People's Republic of China
| | - Hui Wu
- School of Food Sciences and Engineering , South China University of Technology , Wushan Road 381 , Guangzhou 510641 , People's Republic of China
| | - Xinglong Xiao
- School of Food Sciences and Engineering , South China University of Technology , Wushan Road 381 , Guangzhou 510641 , People's Republic of China
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Xin X, Zhang M, Li X, Lai F, Zhao G. Biocatalytic synthesis of acylated derivatives of troxerutin: their bioavailability and antioxidant properties in vitro. Microb Cell Fact 2018; 17:130. [PMID: 30134913 PMCID: PMC6106897 DOI: 10.1186/s12934-018-0976-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 08/11/2018] [Indexed: 04/16/2023] Open
Abstract
Background Flavonoid glycosides have many beneficial effects on health, but these bioactivities tend to decrease after oral administration owing to their poor lipophilicity. In this study, a facile whole-cell-based method was developed for selective preparation of monoester or diester of troxerutin, a flavonoid derivative. In addition, the bioavailabilities and antioxidant properties of troxerutin and its acylated derivatives were also investigated in cells. Results Pseudomonas aeruginosa and Pseudomonas stutzeri cells showed high catalytic efficiency (substrate conversion > 90%) and different preferences for troxerutin, resulting in the production of its monoester (TME) and diester (TDE), respectively. The logP values of troxerutin, TME, and TDE were − 2.04 ± 0.10, − 0.75 ± 0.08, and 1.51 ± 0.05 and their Papp values were 0.34 × 10−6 ± 0.05, 0.99 × 10−6 ± 0.12, and 1.54 × 10−6 ± 0.17 cm/s, respectively. The results of hydroxyl radical, ABTS, and ORAC assays indicated that the antiradical activities of acylated derivatives did not exceed that of troxerutin, but showed higher inhibition effects upon 2,2′-azobis(2-amidinopropane) dihydrochloride-induced erythrocyte hemolysis than that of troxerutin (P < 0.05). Conclusion A facile and efficient whole-cell biocatalysis method was developed to synthesize troxerutin-acylated derivatives, markedly enhancing the bioavailability and antioxidant activities of troxerutin in cells. Additionally, the mechanism underlying the observed difference in the antioxidant activities of troxerutin and its esters was ascribed to both their free radical scavenging abilities and distribution on the cell membrane surface.![]() Electronic supplementary material The online version of this article (10.1186/s12934-018-0976-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xuan Xin
- School of Food Science and Engineering, South China University of Technology, Wushan Road 381, Guangzhou, 510640, Guangdong, China
| | - Mengmeng Zhang
- School of Food Science and Engineering, South China University of Technology, Wushan Road 381, Guangzhou, 510640, Guangdong, China
| | - Xiaofeng Li
- School of Food Science and Engineering, South China University of Technology, Wushan Road 381, Guangzhou, 510640, Guangdong, China.
| | - Furao Lai
- School of Food Science and Engineering, South China University of Technology, Wushan Road 381, Guangzhou, 510640, Guangdong, China
| | - Guanglei Zhao
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Wushan Road 381, Guangzhou, 510640, Guangdong, China.
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Zhao G, Wang F, Lang X, He B, Li J, Li X. Facile one-pot fabrication of cellulose nanocrystals and enzymatic synthesis of its esterified derivative in mixed ionic liquids. RSC Adv 2017. [DOI: 10.1039/c7ra02570j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
As an important cellulose derivative, esterified cellulose nanocrystals (E-CNCs) could be applied in biomedical and chemical industries.
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Affiliation(s)
- Guanglei Zhao
- State Key Laboratory of Pulp and Paper Engineering
- South China University of Technology
- Guangzhou 510641
- China
| | - Fengli Wang
- State Key Laboratory of Pulp and Paper Engineering
- South China University of Technology
- Guangzhou 510641
- China
| | - Xiongfei Lang
- State Key Laboratory of Pulp and Paper Engineering
- South China University of Technology
- Guangzhou 510641
- China
| | - Beihai He
- State Key Laboratory of Pulp and Paper Engineering
- South China University of Technology
- Guangzhou 510641
- China
| | - Junrong Li
- State Key Laboratory of Pulp and Paper Engineering
- South China University of Technology
- Guangzhou 510641
- China
| | - Xiaofeng Li
- State Key Laboratory of Pulp and Paper Engineering
- South China University of Technology
- Guangzhou 510641
- China
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Hu YD, Zong MH, Li N. Enzymatic synthesis and anti-oxidative activities of plant oil-based ascorbyl esters in 2-methyltetrahydrofuran-containing mixtures. BIOCATAL BIOTRANSFOR 2016. [DOI: 10.1080/10242422.2016.1247820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ying-Dan Hu
- School of Food Science and Technology, South China University of Technology, Guangzhou, PR China
| | - Min-Hua Zong
- School of Food Science and Technology, South China University of Technology, Guangzhou, PR China
| | - Ning Li
- School of Food Science and Technology, South China University of Technology, Guangzhou, PR China
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Lapponi MJ, Rivero CW, Zinni MA, Britos CN, Trelles JA. New developments in nucleoside analogues biosynthesis: A review. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.08.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Iglesias LE, Lewkowicz ES, Medici R, Bianchi P, Iribarren AM. Biocatalytic approaches applied to the synthesis of nucleoside prodrugs. Biotechnol Adv 2015; 33:412-34. [PMID: 25795057 DOI: 10.1016/j.biotechadv.2015.03.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Revised: 03/01/2015] [Accepted: 03/04/2015] [Indexed: 10/23/2022]
Abstract
Nucleosides are valuable bioactive molecules, which display antiviral and antitumour activities. Diverse types of prodrugs are designed to enhance their therapeutic efficacy, however this strategy faces the troublesome selectivity issues of nucleoside chemistry. In this context, the aim of this review is to give an overview of the opportunities provided by biocatalytic procedures in the preparation of nucleoside prodrugs. The potential of biocatalysis in this research area will be presented through examples covering the different types of nucleoside prodrugs: nucleoside analogues as prodrugs, nucleoside lipophilic prodrugs and nucleoside hydrophilic prodrugs.
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Affiliation(s)
- Luis E Iglesias
- Laboratorio de Biocatálisis y Biotransformaciones, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, 1876 Bernal, Buenos Aires, Argentina
| | - Elizabeth S Lewkowicz
- Laboratorio de Biocatálisis y Biotransformaciones, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, 1876 Bernal, Buenos Aires, Argentina
| | - Rosario Medici
- Biocatalysis Group, Delft University of Technology, Julianalaan 67, 2628 BC Delft, The Netherlands
| | - Paola Bianchi
- Laboratorio de Biocatálisis y Biotransformaciones, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, 1876 Bernal, Buenos Aires, Argentina
| | - Adolfo M Iribarren
- Laboratorio de Biocatálisis y Biotransformaciones, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, 1876 Bernal, Buenos Aires, Argentina; Laboratorio de Química de Ácidos Nucleicos, INGEBI-CONICET, Vuelta de Obligado 2490, 1428 Ciudad Autónoma de Buenos Aires, Argentina.
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Feng GL, Wu H, Li XF, Lai FR, Zhao GL, Yang MY, Liu HW. A new, efficient and highly-regioselective approach to synthesis of 6-O-propionyl-d-glucose by using whole-cell biocatalysts. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2014.12.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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11
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Yang M, Wu H, Lian Y, Li X, Lai F, Zhao G. Influence of organic solvents on catalytic behaviors and cell morphology of whole-cell biocatalysts for synthesis of 5'-arabinocytosine laurate. PLoS One 2014; 9:e104847. [PMID: 25136983 PMCID: PMC4138074 DOI: 10.1371/journal.pone.0104847] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 07/17/2014] [Indexed: 11/21/2022] Open
Abstract
A whole-cell based method was developed for the regioselective synthesis of arabinocytosine laurate. Among the seven kinds of bacteria strains tested in the acylation reaction, Pseudomonas fluorescens gave the highest productivity and a higher 5′-regioselectivity than 99%. Compared with pure organic solvents, the use of organic solvent mixtures greatly promoted the yield of the whole-cell catalyzed reaction, but showed little influence on the 5′-regioselectivity. Of all the tested solvent mixtures, the best reaction result was found in isopropyl ether/pyridine followed by isopentanol/pyridine. However, the whole-cells showed much lower thermostability in isopropyl ether/pyridine than in THF-pyridine. To better understand the toxic effects of the organic solvents on P. fluorescens whole-cells and growing cells were further examined. Significant influences of organic solvents on the biomass of the cells were found, which differed depending on the type of solvents used. SEM analysis visually revealed the changes in the surface morphology of whole-cells and growing cells cultured in media containing various organic solvents, in terms of surface smoothness, bulges and changed cell sizes. Results demonstrated that organic toxicity to cell structure played an important role in whole-cell mediated catalysis.
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Affiliation(s)
- Meiyan Yang
- State Key Lab of Pulp & Paper Making Engineering, South China University of Technology, Guangzhou, China
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, China
| | - Hui Wu
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, China
| | - Yan Lian
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, China
| | - Xiaofeng Li
- State Key Lab of Pulp & Paper Making Engineering, South China University of Technology, Guangzhou, China
- * E-mail: (XL); (GZ)
| | - Furao Lai
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, China
| | - Guanglei Zhao
- State Key Lab of Pulp & Paper Making Engineering, South China University of Technology, Guangzhou, China
- * E-mail: (XL); (GZ)
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Hu YD, Qin YZ, Li N, Zong MH. Highly efficient enzymatic synthesis of an ascorbyl unstaturated fatty acid ester with ecofriendly biomass-derived 2-methyltetrahydrofuran as cosolvent. Biotechnol Prog 2014; 30:1005-11. [DOI: 10.1002/btpr.1936] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 04/10/2014] [Indexed: 01/26/2023]
Affiliation(s)
- Ying-Dan Hu
- State Key Laboratory of Pulp and Paper Engineering, College of Light Industry and Food Sciences; South China University of Technology; Guangzhou 510640 China
- College of Biosciences and Bioengineering; South China University of Technology; Guangzhou 510006 China
| | - Ye-Zhi Qin
- State Key Laboratory of Pulp and Paper Engineering, College of Light Industry and Food Sciences; South China University of Technology; Guangzhou 510640 China
| | - Ning Li
- State Key Laboratory of Pulp and Paper Engineering, College of Light Industry and Food Sciences; South China University of Technology; Guangzhou 510640 China
| | - Min-Hua Zong
- State Key Laboratory of Pulp and Paper Engineering, College of Light Industry and Food Sciences; South China University of Technology; Guangzhou 510640 China
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