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Huang L, Peng J, Tan M, Fang J, Li K. An efficient preparation process of sisal fibers via the specialized retting microorganisms: Based on the ideal combination of degumming-related enzymes for the effective removal of non-cellulosic macromolecules. Int J Biol Macromol 2024; 274:133416. [PMID: 38925202 DOI: 10.1016/j.ijbiomac.2024.133416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/13/2024] [Accepted: 06/23/2024] [Indexed: 06/28/2024]
Abstract
Bioaugmentation retting with the specialized pectinolytic and xylanolytic microorganisms can accelerate the removal of non-cellulosic macromolecules around plant fibers, thus shortening retting time and facilitating fiber quality. Currently, few specialized microorganisms have been explored for the retting of sisal fibers. The present study excavated the retting fungi including Aspergillus micronesiensis HD 3-6, Penicillium citrinum HD 3-12-3, and Cladosporium sp. HD 4-13 from the region-specific soil samples of planting sisal, and investigated their bioaugmentation retting effects on raw sisal leaves. Results showed that combination of the three fungi achieved the most excellent degumming efficiency (13.69 % of residual gum in sisal fibers) and the highest fiber yield (4.47 %). Furthermore, this fungi combination had the ideal enzymatic hydrolysis features with high activities of pectinase, xylanase and mannanase whereas a low activity of cellulase during the whole retting process, thus endowing the prepared sisal fibers with the lowest mass percentage of non-cellulosic macromolecules (9.76 wt%) and the highest cellulose content (89.23 wt%). SEM and FT-IR analysis further verified that the non-cellulosic substances around sisal fibers were efficiently removed. In summary, the consortia of the three fungi achieved ideal degumming-related enzymes for the removal of non-cellulosic macromolecules, thus acquiring the efficient preparation of sisal fibers.
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Affiliation(s)
- Linru Huang
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China; Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong, Province Engineering Laboratory for Marine Biological Products, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China
| | - Jieying Peng
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China; Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong, Province Engineering Laboratory for Marine Biological Products, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China
| | - Minghui Tan
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China; Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong, Province Engineering Laboratory for Marine Biological Products, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China.
| | - Jianhao Fang
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China; Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong, Province Engineering Laboratory for Marine Biological Products, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China
| | - Kuntai Li
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China; Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong, Province Engineering Laboratory for Marine Biological Products, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China.
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2
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Paul V, Pandhi S, Mahato DK, Agarwal A, Tripathi AD. Polyhydroxyalkanoates (PHAs) and its copolymer nanocarrier application in cancer treatment: An overview and challenges. Int J Biol Macromol 2024; 277:134201. [PMID: 39069052 DOI: 10.1016/j.ijbiomac.2024.134201] [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: 01/16/2024] [Revised: 07/13/2024] [Accepted: 07/25/2024] [Indexed: 07/30/2024]
Abstract
In the modern era, nanomedicine has developed novel drug-delivery strategies to improve chemotherapy. Nanotechnological-based treatment approaches for cancer through targeted tumour drug delivery and stimulus-responsive tumour microenvironment have gained tremendous success in oncology. The application of building block materials of these nanomedicines plays a vital role in cancer remediation. Despite successful application in various medical treatments, nanocarriers' lack of biodegradability and biocompatibility makes their use in a clinical context difficult. In addition, the preparation of current drug delivery systems is a major constraint. The current cancer treatment methods aim to destroy diseased tissue, frequently with the use of radiation and chemotherapy. These treatment options are accompanied by a significant level of toxicity, which has excellent potential to further medical issues in the afflicted patient. Polyhydroxyalkanoate (PHA) polymers are biodegradable and biocompatible polyesters that can potentially be used as nanoparticular delivery systems for cancer treatment. Previously, PHA has shown tremendous application as a packaging material in the food and pharma industry. PHA-based nanocarriers are an effective drug delivery system because of their non-immunogenicity, regulated drug release, high drug loading capacity, and targeted drug delivery. This review focuses on creating and using PHA-based nanocarriers in cancer treatment. Despite its many benefits, PHA-based nanocarriers have yet to progress to clinical trials for drug delivery applications due to several issues, including the polymers' hydrophobic nature and high production costs. This review examines these challenges along with existing alternatives.
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Affiliation(s)
- Veena Paul
- Department of Dairy Science and Food Technology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221005, India; Department of Food Processing Technology, Karunya Institute of Technology and Sciences, Coimbatore 641114, India
| | - Shikha Pandhi
- Department of Dairy Science and Food Technology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221005, India
| | - Dipendra Kumar Mahato
- CASS Food Research Centre, School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC 3125, Australia.
| | - Aparna Agarwal
- Department of Food & Nutrition and Food Technology, Lady Irwin College, University of Delhi, New Delhi, India.
| | - Abhishek Dutt Tripathi
- Department of Dairy Science and Food Technology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221005, India.
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3
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Tao W, Liu J, Hou Y, Shen B, Tang Y, Zhao Y. Characterization of manganese(II)-coupled functional microorganisms in driving lignin degradation during straw composting. Int J Biol Macromol 2024:134192. [PMID: 39069040 DOI: 10.1016/j.ijbiomac.2024.134192] [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: 03/11/2024] [Revised: 06/30/2024] [Accepted: 07/25/2024] [Indexed: 07/30/2024]
Abstract
The intricate structure of lignin in straw makes it challenging to hydrolyze, making it a key focus of current research. However, there has been limited study on the effect of enzyme inducer (MnSO4) combined with functional microorganisms on lignin degradation during straw composting. Based on this, four composting treatment groups were set up in this study. Control (CK), functional microorganism addition treatment (F), Mn2+ enzyme inducer (Mn), and Mn2+ enzyme inducer coupled with functional microorganism addition treatment (FMn) were tested for composting. Manganese(II)-coupled microorganisms improved lignin degradation: FMn > Mn > F > CK. They increased the lignin loss rate from 25.54 % to 42.61 %. Laccase activity increased from 3.45 to 43.74 U/g and manganese peroxidase activity increased from 145.52 to 264.91 U/g. And gene abundance was increased. Microbial community structure and dominant genera changed. Structural equations support the idea that functional microorganisms coupled with manganese can modify physicochemical indices, thereby regulating gene expression and enhancing enzyme activity. Furthermore, the stimulation of fungal growth and increased extracellular laccase and manganese peroxidase activities can affect the degradation of lignin. This study provides new insights and theoretical support for efficient lignin degradation and efficient resource utilization of compost products.
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Affiliation(s)
- Weiye Tao
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Junping Liu
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Yiming Hou
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Bingqi Shen
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Yutong Tang
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Yue Zhao
- College of Life Science, Northeast Agricultural University, Harbin 150030, China.
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4
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Duan Y, Wang W, Jia J, Tuo X, Gong Y, Quan F. Preparation of photothermal alginate/chitosan derivative/CuS@polydopamine composite fibers and application in desalination. Int J Biol Macromol 2024:134142. [PMID: 39059532 DOI: 10.1016/j.ijbiomac.2024.134142] [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: 04/04/2024] [Revised: 06/27/2024] [Accepted: 07/23/2024] [Indexed: 07/28/2024]
Abstract
A polyelectrolyte system consisting of sodium alginate (SA) and quaternary ammonium chitosan (QAC) blended with polydopamine-coated copper sulfide particles (CuS@PDA) was chosen to investigate the function of CuS@PDA in the uniform binary blending of anionic and cationic polyelectrolytes in detail. A smart composite fiber SA/QAC/CuS@PDA was prepared via a dry-wet spinning technique. With the addition of CuS@PDA (about 4.3 % in fiber), the as-prepared SA/QAC/CuS@PDA-0.50 fibers (SQCuS@P-0.50 SCFs) showed notably enhanced intensity 359.2 MPa, excellent moisture response, and photothermal conversion performance, with the temperature increasing from 25.9 to 80.7 °C as irradiated under a 980 nm infrared lamp at distance 20 cm away for 120 s. The photothermal performance was maintained after 6 lighting on-and-off cycles. The tensile strength decreased ~23.8 % after 4 cycles, then remained fixed. The diameter increases to ~480 % in wet state but decreases to the original size in dry state for 10 cycles. When the fabric with 90 wt% SQCuS@P-0.50 SCFs was used as a water evaporator, the water evaporation rate and efficiency were 1.68 kg·m-2·h-1 and 102 % under 1 sun irradiation. This work provides a simple and ecofriendly strategy for fabricating photothermal fabrics by designing and preparing composite fibers.
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Affiliation(s)
- Yujie Duan
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China
| | - Wei Wang
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China
| | - Ji Jia
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China
| | - Xiaohang Tuo
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China
| | - Yumei Gong
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China.
| | - Fengyu Quan
- State Key Laboratory of Bio-Fibers and Eco-textiles (Qingdao University), Qingdao 266071, PR China
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5
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Yang T, He S, Liu P, Yan J, Lu R, Xue Y. Chain heterogeneity of poly(lactic acid) and its influence on crystallization kinetics. Int J Biol Macromol 2024; 277:134101. [PMID: 39048000 DOI: 10.1016/j.ijbiomac.2024.134101] [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: 06/07/2024] [Revised: 07/17/2024] [Accepted: 07/21/2024] [Indexed: 07/27/2024]
Abstract
Temperature rising elution fractionation (TREF) approach was used to separate a biodegradable poly(lactic acid) (PLA) resin into ten fractions and completely establish the relationship between chain microstructure and properties. The main fractions were mainly eluted at 100, 110, 114, and 118 °C, and their mass percentages were 7.98 wt%, 44.83 wt%, 19.64 wt%, and 11.90 wt%, respectively. Through the use of successive self-nucleation/annealing (SSA) thermal fractionation, gel permeation chromatography (GPC), differential scanning calorimetry (DSC), and 13C-nuclear magnetic resonance spectroscopy (13C NMR), the intermolecular and intramolecular differences of PLA were further explored. Fractions eluted at 90, 110, 118, and 126 °C were also chosen to research the non-isothermal cold crystallization kinetics, and fractions eluted at 110, 118, and 126 °C were chosen to explore the non-isothermal crystallization kinetics in order to simulate the real process. The findings demonstrated that the Liu-Mo approach were more suited the non-isothermal crystallization and non-isothermal cold crystallization kinetics of PLA. As the elution temperature increased, so did the stereoregularity of the fractions, the crystallization rate, the crystallization capacity, and the lamellar thickness. These will lay a foundation for its basic research and industrial application.
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Affiliation(s)
- Tao Yang
- College of Chemical Engineering and Material Science, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Shuang He
- College of Chemical Engineering and Material Science, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Peng Liu
- College of Chemical Engineering and Material Science, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Jingyao Yan
- College of Chemical Engineering and Material Science, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Ruiyao Lu
- College of Chemical Engineering and Material Science, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Yanhu Xue
- College of Chemical Engineering and Material Science, Tianjin University of Science and Technology, Tianjin 300457, PR China; Department of Chemical Engineering, Tsinghua University, Beijing 100084, PR China.
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6
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Zhang C, Yang Y, Ma C, Wang B, Bian X, Zhang G, Liu X, Song Z, Zhang N. High freeze-thaw stability of Pickering emulsion stabilized by SPI-maltose particles and its effect on frozen dough. Int J Biol Macromol 2024; 276:133778. [PMID: 38992541 DOI: 10.1016/j.ijbiomac.2024.133778] [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: 05/08/2024] [Revised: 06/21/2024] [Accepted: 07/08/2024] [Indexed: 07/13/2024]
Abstract
Pickering emulsions with good freeze-thaw stability are essential in frozen food applications. This study developed a high freeze-thaw stabilized soy protein isolate (SPI)-maltose (M) Pickering emulsion and applied it to frozen doughs to investigate and reveal its impacts on the processing properties of the frozen dough. The results showed that after the freeze-thaw cycle, with a volume ratio of 1:2 of SPI to M, the appropriate amount of M changed the structure of SPI. This resulted in the Pickering emulsion prepared by the SPI exhibiting the least droplet coalescence and the best freeze-thaw stability. The results of dough rheological properties, textural properties, and binding capacity with water demonstrated that Pickering emulsions effectively inhibited the loss of gluten protein network structure in the dough after freeze treatment and increased the binding capacity of gluten proteins with starch and water in the dough. The best results were obtained with the incorporation of 3 % SPI-M high freeze-thaw stability, where the amount of bound water following three freeze-thaw cycles was 4.27 times higher than in doughs without Pickering emulsion. Overall, this study is significant for enhancing the freeze-thaw stability of Pickering emulsions stabilized by proteins and providing a new application route for Pickering emulsions.
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Affiliation(s)
- Can Zhang
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
| | - Yang Yang
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
| | - Chunmin Ma
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
| | - Bing Wang
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
| | - Xin Bian
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
| | - Guang Zhang
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
| | - Xiaofei Liu
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
| | - Ziyue Song
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
| | - Na Zhang
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China.
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7
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Im JK, Seo DH, Yu JS, Yoo SH. Efficient and novel biosynthesis of myricetin α-triglucoside with improved solubility using amylosucrase from Deinococcus deserti. Int J Biol Macromol 2024; 273:133205. [PMID: 38885871 DOI: 10.1016/j.ijbiomac.2024.133205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 06/02/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
Although myricetin (3,3',4',5,5',7-hexahydroxyflavone, MYR) has a high antioxidant capacity and health functions, its use as a functional food material is limited owing to its low stability and water solubility. Amylosucrase (ASase) is capable of biosynthesizing flavonol α-glycoside using flavonols as acceptor molecules and sucrose as a donor molecule. Here, ASase from Deinococcus deserti (DdAS) efficiently biosynthesizes a novel MYR α-triglucoside (MYRαG3) using MYR as the acceptor molecule. Comparative homology analysis and computational simulation revealed that DdAS has a different active pocket for the transglycosylation reaction. DdAS produced MYRαG3 with a conversion efficiency of 67.4 % using 10 mM MYR and 50 mM sucrose as acceptor and donor molecules, respectively. The structure of MYRαG3 was identified as MYR 4'-O-4″,6″-tri-O-α-D-glucopyranoside using NMR and LC-MS. In silico analysis confirmed that DdAS has a distinct active pocket compared to other ASases. In addition, molecular docking simulations predicted the synthetic sequence of MYRαG3. Furthermore, MYRαG3 showed a similar DPPH radical scavenging activity of 49 %, comparable to MYR, but with significantly higher water solubility, which increased from 0.03 μg/mL to 511.5 mg/mL. In conclusion, this study demonstrated the efficient biosynthesis of a novel MYRαG3 using DdAS and highlighted the potential of MYRαG3 as a functional material.
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Affiliation(s)
- Joong-Ki Im
- Department of Food Science & Biotechnology, Carbohydrate Bioproduct Research Center, Sejong University, Seoul 05006, Republic of Korea
| | - Dong-Ho Seo
- Department of Food Science & Biotechnology, Carbohydrate Bioproduct Research Center, Sejong University, Seoul 05006, Republic of Korea
| | - Jae Sik Yu
- Department of Integrative Sciences and Industry, Sejong University, Seoul 05006, Republic of Korea
| | - Sang-Ho Yoo
- Department of Food Science & Biotechnology, Carbohydrate Bioproduct Research Center, Sejong University, Seoul 05006, Republic of Korea.
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Li H, Wang N, Zhang D, Wu J, Tan S, Li Y, Zhang N, Yang L, Wang X. Comparative study on the structure characterization and activity of RS5 made from Canna edulis native starch and high-amylose corn starch. Int J Biol Macromol 2024; 271:132340. [PMID: 38816293 DOI: 10.1016/j.ijbiomac.2024.132340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 05/06/2024] [Accepted: 05/11/2024] [Indexed: 06/01/2024]
Abstract
In this study, the high amylose corn starch and Canna edulis native starch were compounded with lauric acid and fermented by human fecal inoculation in vitro. Changes in beneficial metabolite profile and microbiota composition were evaluated. The structural properties showed that both NS-12C and HAMS-12C formed V-shaped crystals under the same preparation method, but NS-12C had a higher composite index and resistance content than HAMS-12C. At the end of fermentation, the starch-lauric acid complexes prepared from the two types of starch significantly promoted the formation of short-chain fatty acids and the contents of acetic acid, butyric acid and valeric acid produced by NS-12C were higher than those of HAMS-12C(p>0.05). HAMS-12C and NS-12C both increased the relative abundance of Blautia. Notably, NS-12C also increased the relative abundance of beneficial bacteria Bifidobacterium and Meganomas, while HAMS-12C did not. These results suggested that this effect may be related to starch type and provide a basis for designing and producing functional foods to improve intestinal health in Canna edulis native starch.
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Affiliation(s)
- Houxier Li
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Nan Wang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Dachuan Zhang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Jiahui Wu
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Shuting Tan
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Yan Li
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Nan Zhang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Li Yang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Xueyong Wang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China.
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Babu S, Shanmugavadivu A, Selvamurugan N. Tunable mechanical properties of chitosan-based biocomposite scaffolds for bone tissue engineering applications: A review. Int J Biol Macromol 2024; 272:132820. [PMID: 38825286 DOI: 10.1016/j.ijbiomac.2024.132820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/11/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
Bone tissue engineering (BTE) aims to develop implantable bone replacements for severe skeletal abnormalities that do not heal. In the field of BTE, chitosan (CS) has become a leading polysaccharide in the development of bone scaffolds. Although CS has several excellent properties, such as biodegradability, biocompatibility, and antibacterial properties, it has limitations for use in BTE because of its poor mechanical properties, increased degradation, and minimal bioactivity. To address these issues, researchers have explored other biomaterials, such as synthetic polymers, ceramics, and CS coatings on metals, to produce CS-based biocomposite scaffolds for BTE applications. These CS-based biocomposite scaffolds demonstrate superior properties, including mechanical characteristics, such as compressive strength, Young's modulus, and tensile strength. In addition, they are compatible with neighboring tissues, exhibit a controlled rate of degradation, and promote cell adhesion, proliferation, and osteoblast differentiation. This review provides a brief outline of the recent progress in making different CS-based biocomposite scaffolds and how to characterize them so that their mechanical properties can be tuned using crosslinkers for bone regeneration.
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Affiliation(s)
- Sushma Babu
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Abinaya Shanmugavadivu
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Nagarajan Selvamurugan
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India.
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Majeed H, Ahmad K, Bibi S, Iftikhar T, Ibrahim MM, Ruby T, Mersal GA, El-Bahy ZM, Qureshi K, Arif M, Naseem K, Shaheen S, Bhatti HN. Tamarindus indica seed polysaccharide-copper nanocomposite: An innovative solution for green environment and antimicrobial studies. Heliyon 2024; 10:e30927. [PMID: 38779003 PMCID: PMC11108828 DOI: 10.1016/j.heliyon.2024.e30927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 05/02/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024] Open
Abstract
The purpose of this study was to synthesize ecofriendly nano-composite in which agricultural waste (seeds of Tamarindus indica) was used to synthesize tamarind seed polysaccharides (TSP) and its composite with copper nanoparticles (Cu-NPs) for the purpose of green and clean environment as well as reduction of green-house gases. Confirmation of extracted TSP, synthesized nanocomposite was carried out using FTIR, SEM, PXRD and EDX techniques. In FTIR analysis TSP gives a strong broad peak at 3331 cm-1 due to -OH group and in case of composite its intensity is reduced which might be due to the interactions between -OH and Cu+2 ions. SEM analysis gives that TSP have irregular and rough surface while Cu-NPs exhibited spherical morphology and composite showed clustering of spherical shape to rough surface. EDX analysis quantitatively represented copper having atomic ratio 0.57 % which confirms the synthesis of composite. Furthermore, synthesized composite demonstrated excellent antibacterial activity against gram-positive (S.aureus) and gram-negative bacteria (E.coli) even greater than standard medicine (ciprofloxacin). From this study it was revealed that agriculture waste can be utilized to make environment green as well as synthesized composite from agricultural waste seed also displayed excellent antimicrobial activities which directs that they can be utilized in medical field. This study aims to assess the antimicrobial properties of the nanocomposite, aiming to contribute to the development of effective antimicrobial agents. Through these objectives, the research seeks to bridge the gap between green technology and antimicrobial efficacy, offering a promising avenue for both environmental conservation and healthcare advancements.
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Affiliation(s)
- Hammad Majeed
- Department of Chemistry, University of Management and Technology (UMT), Sialkot Campus, 51310, Pakistan
| | - Khalil Ahmad
- Department of Chemistry, Emerson University Multan (EUM), Multan, 60000, Punjab, Pakistan
| | - Sadia Bibi
- Department of Chemistry, University of Agriculture Faisalabad, Pakistan
| | - Tehreema Iftikhar
- Department of Botany, Applied Botany Lab, GC University, Lahore, 54000, Pakistan
| | - Mohamed M. Ibrahim
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Tahira Ruby
- Institute of Zoology, Bahauddin Zakariya University Multan, 60800, Pakistan
| | - Gaber A.M. Mersal
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Zeinhom M. El-Bahy
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, 11884, Cairo, Egypt
| | - Khizar Qureshi
- Department of Chemistry, University of Management and Technology (UMT), Sialkot Campus, 51310, Pakistan
| | - Muhammad Arif
- Department of Chemistry, School of Science, University of Management and Technology, Lahore, 54770, Pakistan
| | - Khalida Naseem
- Department of Basic and Applied Chemistry, Faculty of Science and Technology, University of Central Punjab Lahore, Pakistan
| | - Shabnum Shaheen
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Haq Nawaz Bhatti
- Department of Chemistry, University of Agriculture Faisalabad, Pakistan
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11
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Biswas B, Rahman ML, Ahmed MF, Sharmin N. Extraction of gamma iron oxide (γ-Fe 2O 3) nanoparticles from waste can: Structure, morphology and magnetic properties. Heliyon 2024; 10:e30810. [PMID: 38778945 PMCID: PMC11109832 DOI: 10.1016/j.heliyon.2024.e30810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 05/06/2024] [Accepted: 05/06/2024] [Indexed: 05/25/2024] Open
Abstract
In this work, the transformation of waste iron cans to gamma iron oxide (γ-Fe2O3) nanoparticles following acid leaching precipitation method along with their structural, surface chemistry, and magnetic properties was studied. Highly magnetic iron-based nanomaterials, maghemite with high saturation magnetization have been synthesized through an acid leaching technique by carefully tuning of pH and calcination temperature. The phase composition and crystal structure, surface morphology, surface chemistry, and surface composition of the synthesized γ-Fe2O3 nanoparticles were explored by X-ray diffraction (XRD), Scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and Energy-dispersive X-ray spectroscopy (EDS). The XRD results confirm the cubic spinel structure having crystallite size 26.90-52.15 nm. The XPS study reveals the presence of Fe, O element and the binding energy of Fe (710.31 and 724.48 eV) confirms the formation of γ-Fe2O3 as well. By dynamic light scattering (DLS) method and zeta potential analyzer, the particle size distribution and stability of the systems were investigated. The magnetic behavior of the synthesized γ-Fe2O3 nanoparticles were studied using a vibrating sample magnetometer (VSM) which confirmed the ferrimagnetic particles with saturation magnetization of 54.94 emu/g. The resultant maghemite nanoparticles will be used in photocatalysts and humidity sensing. The net impact of the work stated here is based on the principle of converting waste into useful nanomaterials. Finally, it was concluded that our results can give insights into the design of the synthesis procedure from the precursor to the high-quality gamma iron oxide nanoparticles with high saturation magnetization for different potential applications which are inexpensive and very simple.
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Affiliation(s)
- Bristy Biswas
- Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, 1205, Bangladesh
| | - Md. Lutfor Rahman
- Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, 1205, Bangladesh
| | - Md. Farid Ahmed
- Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, 1205, Bangladesh
| | - Nahid Sharmin
- Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, 1205, Bangladesh
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Yang Z, Xian Z, Li Q, Zhang H, Wei H, Jiang Y, Zheng C, Gao X. Insights into Aerosol Emission Control in the Postcombustion CO 2 Capture Process: From Cluster Formation to Aerosol Growth. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:7196-7207. [PMID: 38597822 DOI: 10.1021/acs.est.3c10479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Aerosols produced in the amine carbon capture process can lead to secondary environmental pollution. This study employs molecular dynamics (MD) simulations to investigate cluster formation, amine behavior, and aerosol growth of amines, essential for reducing amine aerosol emissions. Results showed that the cluster evolution process can be divided into cluster formation and growth in terms of molecular content, and the nucleation rate for the present systems was estimated in the order of 1028 cm-3 s-1. CO2 absorption was observed alongside successful nucleation, with CO2 predominantly localizing in the cluster's outer layer postabsorption. Monoethanolamine (MEA) exhibited robust electrostatic interactions with other components via hydrogen bonding, leading to its migration toward regions where CO2 and H2O coexisted within the cluster. While MEA presence markedly spurred cluster formation, its concentration had a marginal effect on the final cluster size. Elevating water content can augment the aerosol growth rate. However, altering the gas saturation is possible only within narrow confines by introducing vapor. Contrarily, gas cooling introduced dual, opposing effects on aerosol growth. These findings, including diffusion coefficients and growth rates, enhance theoretical frameworks for predicting aerosol formation in absorbers, aiding in mitigating environmental impacts of amine-based carbon capture.
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Affiliation(s)
- Zhengda Yang
- College of New Energy, China University of Petroleum (East China), Qingdao 266580, China
| | - Zhennan Xian
- College of New Energy, China University of Petroleum (East China), Qingdao 266580, China
| | - Qingyi Li
- Zhejiang Energy Group Co., Ltd., Hangzhou 310007, China
| | - Hao Zhang
- Centre for Atmospheric Sciences, The University of Manchester, Manchester M13 9PL, U.K
| | - Han Wei
- College of New Energy, China University of Petroleum (East China), Qingdao 266580, China
| | - Ye Jiang
- College of New Energy, China University of Petroleum (East China), Qingdao 266580, China
| | - Chenghang Zheng
- State Key Lab of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Xiang Gao
- State Key Lab of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
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Majeed H, Iftikhar T, Mukhtar U. Novel approach to water-efficient bulk industrial textile printing production of cotton fabric. Int J Biol Macromol 2024; 262:130064. [PMID: 38340937 DOI: 10.1016/j.ijbiomac.2024.130064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/04/2024] [Accepted: 02/07/2024] [Indexed: 02/12/2024]
Abstract
Water scarcity poses a global threat in climate change era, and regrettably, the textile processing industry is squandering a significant volume of water during bulk production. This research focused on a sustainable water-saving approach in the printing of cotton fabric by modifying the reactive printing recipe and methodology. Three modified recipes (X, Y, Z) and one controlled recipe (C) were tested using reactive dyes. The conventional reactive printing recipe (Control) includes sodium alginate, urea, mild oxidizing agent, and sodium bicarbonate. In contrast, the modified recipe trials incorporated an acrylic-based synthetic thickener in the replacement of sodium alginate (alone and in combination with sodium alginate). A total of four recipes (one controlled conventional and three modified recipes) were examined using three reactive dyes at two dose levels (2 % and 4 %). Various characterization techniques, including shade variation, color penetration into the fabric, sharpness of the edges, color tinting on the adjacent white fabric, perspiration fastness (both acidic and alkaline), washing fastness, rubbing fastness, and fabric hardness, affirmed that Y recipe yielded the best results in fabric testing, cost reduction, and water conservation. This research represents a pioneering contribution to the printing industry with novel recipes.
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Affiliation(s)
- Hammad Majeed
- Department of Chemistry, University of Management and Technology (UMT) Lahore, Sialkot Campus, 51310, Pakistan.
| | - Tehreema Iftikhar
- Applied Botany Lab, Department of Botany, Government College University, Lahore 54000, Pakistan.
| | - Umair Mukhtar
- Knowledge Unit of Design and Textiles, University of Management and Technology (UMT), Lahore, Sialkot Campus, 51310, Pakistan
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Majeed H, Iftikhar T, Ashir Nadeem M, Altaf Nazir M. Green synthesis of Eucalyptus globulus zinc nanoparticles and its use in antimicrobial insect repellent paint formulation in bulk industrial production. Heliyon 2024; 10:e24467. [PMID: 38288019 PMCID: PMC10823064 DOI: 10.1016/j.heliyon.2024.e24467] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 01/05/2024] [Accepted: 01/09/2024] [Indexed: 01/31/2024] Open
Abstract
Mitigating climate change can be achieved by opting for sustainable, plant-based materials instead of relying on hazardous chemicals that come with various side effects. Various natural plant extracts find widespread application in synthesizing insect-repellent coatings, particularly in industries such as paint manufacturing. The increasing demand for these coatings has led us to find out the effects of different plant extracts for the efficient preparation of paints with more advanced impacts and low cost. For this purpose, zinc nanoparticles of Eucalyptus globulus L. and its extracts were used in this study due to their remarkable biocidal and antimicrobial activities. The extract was prepared by the process of oven-drying and heating followed by their filtration. Then, they were subjected to different phytochemical tests that were performed in which plant material did not contain flavonoids and glycol. The comparison of the size of nanoparticles was visible during the weighing which was found to be 4.451 mg. Advanced characterization techniques like FTIR, UV visible spectroscopy, and particle size analysis were adopted for the analysis of nanoparticles of plant extract. The FTIR analysis of the plant material was reported to lie in the range of 1000-1800 cm-1. On the other hand, the results of UV visible spectroscopy of nanoparticles of plant extract showed absorption peaks around 300 nm. The produced material was integrated into paint formulations to impart insect-repellent and antibacterial characteristics. Painted panels exhibited notable antibacterial efficacy, presenting an inhibition zone of 0.7 cm for Escherichia coli and 0.3 cm for Staphylococcus aureus when utilizing biocide. Plant nanoparticles yielded inhibition zones of 1 and 1.2, while aqueous extract resulted in zones of 0.2 and 0.5, respectively. A thorough evaluation of the paint's color attributes, including ΔL, Δa, Δb, and ΔE, indicated noteworthy differences. The CMC ΔE values from the trials exceeded 1, indicating a substantial change in shade. The batches of paints containing E. globulus extracts and nanoparticles were found to be lighter in color specifically green and yellow colors. Their antimicrobial and insect repellant activity was tested using the mosquitos of Aedes aegypti with an age of 4-5 weeks, revealing that formulations with plant extracts exhibited a 61 % effective period, greater than the 7 % observed in non-biocidal formulations. The paint responded best towards these mosquitoes in terms of repellency and the ultimate target of this study was achieved.
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Affiliation(s)
- Hammad Majeed
- Department of Chemistry, University of Management and Technology (UMT) Lahore, Sialkot Campus, 51310, Pakistan
| | - Tehreema Iftikhar
- Applied Botany Lab, Department of Botany, Government College University, 54000, Lahore, Pakistan
| | - Muhammad Ashir Nadeem
- Applied Botany Lab, Department of Botany, Government College University, 54000, Lahore, Pakistan
| | - Muhammad Altaf Nazir
- Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
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