1
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Dos Santos DM, Moon JI, Kim DS, Bassous NJ, Marangon CA, Campana-Filho SP, Correa DS, Kang MH, Kim WJ, Shin SR. Hierarchical Chitin Nanocrystal-Based 3D Printed Dual-Layer Membranes Hydrogels: A Dual Drug Delivery Nano-Platform for Periodontal Tissue Regeneration. ACS NANO 2024; 18:24182-24203. [PMID: 39163106 DOI: 10.1021/acsnano.4c05558] [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: 08/21/2024]
Abstract
Periodontitis, a prevalent chronic inflammatory disease caused by bacteria, poses a significant challenge to current treatments by merely slowing their progression. Herein, we propose an innovative solution in the form of hierarchical nanostructured 3D printed bilayer membranes that serve as dual-drug delivery nanoplatforms and provide scaffold function for the regeneration of periodontal tissue. Nanocomposite hydrogels were prepared by combining lipid nanoparticle-loaded grape seed extract and simvastatin, as well as chitin nanocrystals, which were then 3D printed into a bilayer membrane that possesses antimicrobial properties and multiscale porosity for periodontal tissue regeneration. The constructs exhibited excellent mechanical properties by adding chitin nanocrystals and provided a sustained release of distinct drugs over 24 days. We demonstrated that the bilayer membranes are cytocompatible and have the ability to induce bone-forming markers in human mesenchymal stem cells, while showing potent antibacterial activity against pathogens associated with periodontitis. In vivo studies further confirmed the efficacy of bilayer membranes in enhancing alveolar bone regeneration and reducing inflammation in a periodontal defect model. This approach suggests promising avenues for the development of implantable constructs that not only combat infections, but also promote the regeneration of periodontal tissue, providing valuable insights into advanced periodontitis treatment strategies.
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Affiliation(s)
- Danilo Martins Dos Santos
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, Massachusetts 02139, United States
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos, São Paulo 13560-970, Brazil
| | - Jae-I Moon
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Dental Multi-omics Center, Seoul National University, Seoul 03080, Republic of Korea
| | - Da-Seul Kim
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, Massachusetts 02139, United States
| | - Nicole Joy Bassous
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, Massachusetts 02139, United States
| | - Crisiane Aparecida Marangon
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos, São Paulo 13560-970, Brazil
| | - Sergio Paulo Campana-Filho
- Sao Carlos Institute of Chemistry/University of São Paulo, Av. Trabalhador Sao-carlense, 400, São Carlos, São Paulo 13566-590, Brazil
| | - Daniel Souza Correa
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos, São Paulo 13560-970, Brazil
| | - Min-Ho Kang
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, Bucheon 14662, Republic of Korea
- Department of Biotechnology, The Catholic University of Korea, Bucheon 14662, Republic of Korea
| | - Woo-Jin Kim
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Dental Multi-omics Center, Seoul National University, Seoul 03080, Republic of Korea
| | - Su Ryon Shin
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, Massachusetts 02139, United States
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2
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Liao J, Wen R, Wang Y, Zhou Y, Zhang J. Film-Forming Capability and Antibacterial Activity of Surface-Deacetylated Chitin Nanocrystals: Role of Degree of Deacetylation. Biomacromolecules 2024; 25:5138-5148. [PMID: 39007299 DOI: 10.1021/acs.biomac.4c00528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Developing sustainable food-active packaging materials is a major issue in food preservation applications. Chitin nanocrystals (ChNCs) are regarded as unique bioderived nanomaterials due to their inherent nitrogen moiety. By tuning the chemical functionality of this nanomaterial, it is possible to affect its properties, such as film-forming capability and antibacterial activity. In this work, surface-deacetylated chitin nanocrystals (D-ChNCs) with different degrees of deacetylation (DDs) were prepared by partial deacetylation of native chitin and subsequent acid hydrolysis, and their film-forming capability and antibacterial activity were studied systematically. The D-ChNCs showed favorable film-forming ability and antibacterial activity, which are closely related to their DD. With the increase in DD (from 5.7% to 45.4%), the formed transparent films based on ChNCs showed gradually increased elongation at break (from 0.5% to 2.5%) and water contact angle (from 25.5° to 87.0°), but decreased break strength (from 3.13 to 0.89 MPa), Young's modulus (from 0.84 to 0.24 MPa), and water vapor permeability (from 4.7 × 10-10 to 4.1 × 10-10g/m s Pa). Moreover, the antibacterial activity of the D-ChNCs against E. coli and S. aureus also increased with the increase of DD. This study also found that the depolarization and potential dissipation of the bacterial cell membrane induced by the contact between amino-rich D-ChNCs and bacteria through electrostatic attraction are the possible mechanisms causing bacterial cell death. This study provides a basis for understanding the effects of DD on the film-forming capability and antibacterial activity of ChNCs, which is conducive to the design of novel active packaging films based on ChNCs.
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Affiliation(s)
- Jing Liao
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
- Meat Processing Key Laboratory of Sichuan Province, Chengdu University, Chengdu 610106, China
| | - Ruizhi Wen
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Yijin Wang
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Yuhang Zhou
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Jiamin Zhang
- Meat Processing Key Laboratory of Sichuan Province, Chengdu University, Chengdu 610106, China
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3
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Yao M, Zhang G, Shao D, Ding S, Li L, Li H, Zhou C, Luo B, Lu L. Preparation of chitin/MXene/poly(L-arginine) composite aerogel spheres for specific adsorption of bilirubin. Int J Biol Macromol 2023:125140. [PMID: 37270125 DOI: 10.1016/j.ijbiomac.2023.125140] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 05/21/2023] [Accepted: 05/26/2023] [Indexed: 06/05/2023]
Abstract
Currently, hemoperfusion is clinically the most rapid and effective treatment for removing toxins from the blood. The core of hemoperfusion is the sorbent inside the hemoperfusion device. Due to the complex composition of the blood, adsorbents tend to adsorb substances such as proteins in the blood (non-specific adsorption) while adsorbing toxins. Hyperbilirubinemia is caused by excessive levels of bilirubin in the human blood, causing irreversible damage to the patient's brain and nervous system, and even leading to death. High adsorption and high biocompatibility adsorbents with specific bilirubin adsorption are urgently needed to treat hyperbilirubinemia. Herein, poly(L-arginine) (PLA) which can specifically adsorb bilirubin, was introduced into chitin/MXene (Ch/MX) composite aerogel spheres. Ch/MX/PLA prepared by supercritical CO2 technology had higher mechanical properties than Ch/MX and can withstand 50,000 times its own weight. The in vitro simulated hemoperfusion test showed that the adsorption capacity of Ch/MX/PLA was as high as 596.31 mg/g, which was 15.38 % higher than that of Ch/MX. Binary and ternary competitive adsorption tests showed that Ch/MX/PLA also had good adsorption capacity in the presence of a variety of interfering molecules. In addition, hemolysis rate testing and CCK-8 testing confirmed that Ch/MX/PLA had better biocompatibility and hemocompatibility. Ch/MX/PLA can meet the required properties of clinical hemoperfusion sorbents and has the ability to produce mass production. It has good application potential in the clinical treatment of hyperbilirubinemia.
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Affiliation(s)
- Mengru Yao
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
| | - Guiyin Zhang
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
| | - Danchun Shao
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
| | - Shan Ding
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, China
| | - Lihua Li
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, China
| | - Hong Li
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, China
| | - Changren Zhou
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, China
| | - Binghong Luo
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, China
| | - Lu Lu
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, China.
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4
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Zou Y, Yue P, Cao H, Wu L, Xu L, Liu Z, Wu S, Ye Q. Biocompatible and biodegradable chitin-based hydrogels crosslinked by BDDE with excellent mechanical properties for effective prevention of postoperative peritoneal adhesion. Carbohydr Polym 2023; 305:120543. [PMID: 36737194 DOI: 10.1016/j.carbpol.2023.120543] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 12/23/2022] [Accepted: 01/02/2023] [Indexed: 01/07/2023]
Abstract
Postoperative peritoneal adhesions are common complications caused by abdominal and pelvic surgery, which seriously impact the quality of life of patients and impose additional financial burdens. Using of biomedical materials as physical barriers to completely isolate the traumatic organ and injured tissue is an optimal strategy for preventing postoperative adhesions. However, the limited efficacy and difficulties in the complete degradation or integration of biomedical materials with living tissues restrict the application of these materials. In this study, novel chitin-based crosslinked hydrogels with appropriate mechanical properties and flexibilities were developed using a facile and green strategy. The developed hydrogels simultaneously exhibited excellent biocompatibilities and resistance to nonspecific protein adsorption and NIH/3T3 fibroblast adhesion. Furthermore, these hydrogels were biodegradable and could be completely integrated into the native extracellular matrix. The chitin-based crosslinked hydrogels also effectively inhibited postoperative peritoneal adhesions in rat models of adhesion and recurrence. Therefore, these novel chitin-based crosslinked hydrogels are excellent candidate physical barriers for the efficient prevention of postoperative peritoneal adhesions and provide a new anti-adhesion strategy for biomedical applications.
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Affiliation(s)
- Yongkang Zou
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, China
| | - Pengpeng Yue
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, China
| | - Hankun Cao
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, China
| | - Liqin Wu
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, China
| | - Li Xu
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, China
| | - Zhongzhong Liu
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, China
| | - Shuangquan Wu
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, China.
| | - Qifa Ye
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan 430071, China; The Third Xiangya Hospital of Central South University, Research Center of National Health Ministry on Transplantation Medicine Engineering and Technology, Changsha 410013, China.
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5
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Novikov VY, Derkach SR, Konovalova IN, Dolgopyatova NV, Kuchina YA. Mechanism of Heterogeneous Alkaline Deacetylation of Chitin: A Review. Polymers (Basel) 2023; 15:polym15071729. [PMID: 37050343 PMCID: PMC10097213 DOI: 10.3390/polym15071729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
This review provides an analysis of experimental results on the study of alkaline heterogeneous deacetylation of chitin obtained by the authors and also published in the literature. A detailed analysis of the reaction kinetics was carried out considering the influence of numerous factors: reaction reversibility, crystallinity and porosity of chitin, changes in chitin morphology during washing, alkali concentration, diffusion of hydroxide ions, and hydration of reacting particles. A mechanism for the chitin deacetylation reaction is proposed, taking into account its kinetic features in which the decisive role is assigned to the effects of hydration. It has been shown that the rate of chitin deacetylation increases with a decrease in the degree of hydration of hydroxide ions in a concentrated alkali solution. When the alkali concentration is less than the limit of complete hydration, the reaction practically does not occur. Hypotheses have been put forward to explain the decrease in the rate of the reaction in the second flat portion of the kinetic curve. The first hypothesis is the formation of “free” water, leading to the hydration of chitin molecules and a decrease in the reaction rate. The second hypothesis postulates the formation of a stable amide anion of chitosan, which prevents the nucleophilic attack of the chitin macromolecule by hydroxide ions.
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6
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Mode of action of nanochitin whisker against Fusarium pseudograminearum. Int J Biol Macromol 2022; 217:356-366. [PMID: 35839953 DOI: 10.1016/j.ijbiomac.2022.07.056] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 07/03/2022] [Accepted: 07/08/2022] [Indexed: 11/22/2022]
Abstract
Nanochitin whisker (NC) is an advanced nanobiomaterial with novel physicochemical and biological properties. Fusarium pseudograminearum (Fpg) is an important pathogenic fungus causing wheat crown rot disease. This study explored the mode of action of NC against Fpg as a target microorganism. The effects of different treatments and concentrations of NC on the fungal growth and conidial germination were investigated by in vitro bioassay. The impacts of NC on cell structure integrity, membrane permeability, pathogenesis related key enzymes activity, and the mycotoxin production were examined by electron microscopy, fluorescence spectroscopy, IR spectroscopy, conductometry, and spectrophotometry, respectively. The results showed that NC significantly reduced hyphal growth, and the spore germination rate of Fpg declined by 33.0 % and 23.2 % when Fpg was treated with 30 and 300 μg/mL of NC, respectively. NC vigorously influenced structural stability of cell wall by destroying dextran structure, and strongly stimulated ergosterol production altering membrane integrity of the fungus. It reduced the activities of enzymes related to energy-supply like nicotinamide adenine dinucleotide oxidase and succinate dehydrogenase remarkably. The production of fungal mycotoxin deoxynivalenol was also decreased by NC. These findings provide an important basis for fully understanding the mechanism of nanobiomaterial in plant fungal disease control.
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7
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Tang S, Liu K, Chen J, Li Y, Liu M, Lu L, Zhou C, Luo B. Dual-Cross-linked Liquid Crystal Hydrogels with Controllable Viscoelasticity for Regulating Cell Behaviors. ACS APPLIED MATERIALS & INTERFACES 2022; 14:21966-21977. [PMID: 35503918 DOI: 10.1021/acsami.2c02689] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The liquid crystal properties and viscoelasticity of the natural bone extracellular matrix (ECM) play a decisive role in guiding cell behavior, conducting cell signals, and regulating mineralization. Here, we develop a facile approach for preparing a novel polysaccharide hydrogel with liquid crystal properties and viscoelasticity similar to those of natural bone ECM. First, a series of chitin whisker/chitosan (CHW/CS) hydrogels were prepared by chemical cross-linking with genipin, in which CHW can self-assemble to form cholesteric liquid crystals under ultrasonic treatment and CS chains can enter into the gaps between the helical layers of the CHW cholesteric liquid crystal phase to endow morphological stability and good mechanical properties. Subsequently, the obtained chemically cross-linked liquid crystal hydrogels were immersed into the desired concentration of the NaCl solution to form physical cross-linking. Due to the Hofmeister effect, the as-prepared dual-cross-linked liquid crystal hydrogels showed an enhanced modulus, viscoelasticity similar to that of natural ECM with relatively fast stress relaxation behavior, and fold surface morphology. Compared to both CHW/CS hydrogels without liquid crystal properties and CHW/CS liquid crystal hydrogels without further physical cross-linking, the dual-cross-linked CHW/CS liquid crystal hydrogels are more favorable for the adhesion, proliferation, and osteogenic differentiation of bone marrow mesenchymal stem cells. This approach could inspire the design of hydrogels mimicking the liquid crystal properties and viscoelasticity of natural bone ECM for bone repair.
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Affiliation(s)
- Shengyue Tang
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
| | - Kun Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
| | - Jingsheng Chen
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
| | - Yizhi Li
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
| | - Mingxian Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
| | - Lu Lu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
| | - Changren Zhou
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
| | - Binghong Luo
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, P. R. China
- Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, P. R. China
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8
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Guo M, Wei X, Chen S, Xiao J, Huang D. Enhancing nonspecific enzymatic hydrolysis of chitin to oligosaccharides pretreated by acid and green solvents under simultaneous microwave-radiation. Int J Biol Macromol 2022; 209:631-641. [PMID: 35413325 DOI: 10.1016/j.ijbiomac.2022.04.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 03/13/2022] [Accepted: 04/04/2022] [Indexed: 11/05/2022]
Abstract
It is hard to degrade untreated highly crystalline chitin. In this study, two solvents pretreatment chitin (acid swollen chitin (AC), super fine chitin (FC)) and microwave-heating method were used to enhance nonspecific enzymatic hydrolysis (lysozyme and pepsin), which obviously improved the enzymolysis rates by at least 1.31 times. Characterizations of chitin substrates (Mv, SEM, XRD) showed that calcium solvent pretreatment (obtained FC) was milder but effective than phosphoric acid pretreatment (obtained AC). The highest yield of chitin oligosaccharides (37.58 mg/g) were obtained after hydrolyzing AC under five-hour simultaneous microwave radiation by pepsin, among them, the content of N-acetylglucosamine was 13.76 mg/g. While, more chitin oligosaccharides with DP (degree of polymerization) 3-4 and lower DA (degree of acetylation) were obtained when using lysozyme than pepsin. Significantly, the conversion rate of chitin to oligosaccharides went best only when microwave and enzymes acting together (simultaneous strategy), which were at least 35.59% higher than separately pretreatment enzymes and substrates by microwave. The damages of microwave radiation on lysozyme and chitin substrates were revealed, and the operating principle of the whole enzyme reaction system heated by microwave was preliminatively explored.
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Affiliation(s)
- Mengyuan Guo
- College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Xunfan Wei
- College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Sicong Chen
- College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Jinhua Xiao
- College of Life Sciences, Nankai University, Tianjin 300071, China.
| | - Dawei Huang
- College of Life Sciences, Nankai University, Tianjin 300071, China.
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9
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Application of the in-situ biological detoxification polymer for the improvement of AFB1 detoxification. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Hao LT, Park S, Choy S, Kim YM, Lee SW, Ok YS, Koo JM, Hwang SY, Hwang DS, Park J, Oh DX. Strong, Multifaceted Guanidinium-Based Adhesion of Bioorganic Nanoparticles to Wet Biological Tissue. JACS AU 2021; 1:1399-1411. [PMID: 34604850 PMCID: PMC8479763 DOI: 10.1021/jacsau.1c00193] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Indexed: 06/13/2023]
Abstract
Gluing dynamic, wet biological tissue is important in injury treatment yet difficult to achieve. Polymeric adhesives are inconvenient to handle due to rapid cross-linking and can raise biocompatibility concerns. Inorganic nanoparticles adhere weakly to wet surfaces. Herein, an aqueous suspension of guanidinium-functionalized chitin nanoparticles as a biomedical adhesive with biocompatible, hemostatic, and antibacterial properties is developed. It glues porcine skin up to 3000-fold more strongly (30 kPa) than inorganic nanoparticles at the same concentration and adheres at neutral pH, which is unachievable with mussel-inspired adhesives alone. The glue exhibits an instant adhesion (2 min) to fully wet surfaces, and the glued assembly endures one-week underwater immersion. The suspension is lowly viscous and stable, hence sprayable and convenient to store. A nanomechanic study reveals that guanidinium moieties are chaotropic, creating strong, multifaceted noncovalent bonds with proteins: salt bridges comprising ionic attraction and bidentate hydrogen bonding with acidic moieties, cation-π interactions with aromatic moieties, and hydrophobic interactions. The adhesion mechanism provides a blueprint for advanced tissue adhesives.
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Affiliation(s)
- Lam Tan Hao
- Research
Center for Bio-based Chemistry, Korea Research
Institute of Chemical Technology (KRICT), Ulsan 44429, Republic
of Korea
- Advanced
Materials and Chemical Engineering, University
of Science and Technology (UST), Daejeon 34113, Republic
of Korea
| | - Sohee Park
- Division
of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Seunghwan Choy
- Biomedical
Institute for Convergence, Sungkyunkwan
University, Suwon 16419, Republic of Korea
| | - Young-Min Kim
- Division
of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Seung-Woo Lee
- Division
of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
- Department
of Life Sciences, Pohang University of Science
and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Yong Sik Ok
- Korea
Biochar Research Center, APRU Sustainable Waste Management Program,
Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic
of Korea
| | - Jun Mo Koo
- Research
Center for Bio-based Chemistry, Korea Research
Institute of Chemical Technology (KRICT), Ulsan 44429, Republic
of Korea
| | - Sung Yeon Hwang
- Research
Center for Bio-based Chemistry, Korea Research
Institute of Chemical Technology (KRICT), Ulsan 44429, Republic
of Korea
- Advanced
Materials and Chemical Engineering, University
of Science and Technology (UST), Daejeon 34113, Republic
of Korea
| | - Dong Soo Hwang
- Division
of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Jeyoung Park
- Research
Center for Bio-based Chemistry, Korea Research
Institute of Chemical Technology (KRICT), Ulsan 44429, Republic
of Korea
- Advanced
Materials and Chemical Engineering, University
of Science and Technology (UST), Daejeon 34113, Republic
of Korea
| | - Dongyeop X. Oh
- Research
Center for Bio-based Chemistry, Korea Research
Institute of Chemical Technology (KRICT), Ulsan 44429, Republic
of Korea
- Advanced
Materials and Chemical Engineering, University
of Science and Technology (UST), Daejeon 34113, Republic
of Korea
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11
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Fernando LD, Dickwella Widanage MC, Penfield J, Lipton AS, Washton N, Latgé JP, Wang P, Zhang L, Wang T. Structural Polymorphism of Chitin and Chitosan in Fungal Cell Walls From Solid-State NMR and Principal Component Analysis. Front Mol Biosci 2021; 8:727053. [PMID: 34513930 PMCID: PMC8423923 DOI: 10.3389/fmolb.2021.727053] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/10/2021] [Indexed: 12/15/2022] Open
Abstract
Chitin is a major carbohydrate component of the fungal cell wall and a promising target for novel antifungal agents. However, it is technically challenging to characterize the structure of this polymer in native cell walls. Here, we recorded and compared 13C chemical shifts of chitin using isotopically enriched cells of six Aspergillus, Rhizopus, and Candida strains, with data interpretation assisted by principal component analysis (PCA) and linear discriminant analysis (LDA) methods. The structure of chitin is found to be intrinsically heterogeneous, with peak multiplicity detected in each sample and distinct fingerprints observed across fungal species. Fungal chitin exhibits partial similarity to the model structures of α- and γ-allomorphs; therefore, chitin structure is not significantly affected by interactions with other cell wall components. Addition of antifungal drugs and salts did not significantly perturb the chemical shifts, revealing the structural resistance of chitin to external stress. In addition, the structure of the deacetylated form, chitosan, was found to resemble a relaxed two-fold helix conformation. This study provides high-resolution information on the structure of chitin and chitosan in their cellular contexts. The method is applicable to the analysis of other complex carbohydrates and polymer composites.
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Affiliation(s)
- Liyanage D Fernando
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, United States
| | | | - Jackson Penfield
- Department of Chemical Engineering, Tennessee Technological University, Cookeville, TN, United States
| | - Andrew S Lipton
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, United States
| | - Nancy Washton
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, United States
| | - Jean-Paul Latgé
- Unité des Aspergillus, Département de Mycologie, Institut Pasteur, Paris, France
| | - Ping Wang
- Department of Microbiology, Immunology and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Liqun Zhang
- Department of Chemical Engineering, Tennessee Technological University, Cookeville, TN, United States
| | - Tuo Wang
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, United States
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12
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Cheng J, Zhu H, Huang J, Zhao J, Yan B, Ma S, Zhang H, Fan D. The physicochemical properties of chitosan prepared by microwave heating. Food Sci Nutr 2020; 8:1987-1994. [PMID: 32328265 PMCID: PMC7174223 DOI: 10.1002/fsn3.1486] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 01/30/2020] [Accepted: 02/04/2020] [Indexed: 12/26/2022] Open
Abstract
The aim of this study was to compare the physicochemical properties of chitosan prepared by microwave and water bath heating with an equivalent quantity of heat intake. The structure and physicochemical properties of the chitosan obtained by these two methods were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), gel permeation chromatography (GPC), and scanning electron microscopy (SEM). The FTIR and XRD patterns show that there was no significant difference in the structure of chitosan produced by the two heat sources. The results showed that chitosan with 73.86% deacetylation was successfully prepared by microwave heating within 60 min, while a longer time of 180 min was required for the preparation of chitosan with the same deacetylation degree (74.47%) using the conventional heating method under the same heating rate. Even under the same temperature conditions, microwave technology can greatly reduce the reaction time by approximately 1/3, while the chitosan produced by microwaves can obtain relatively low molecular weight and viscosity. These results showed that microwaves may efficiently promote complete chemical reactions by the friction heating mechanism generated by molecular vibration beyond a rapid heating source, turning into a more efficient, energy-saving, and environmentally friendly method for the further use of rigid shrimp shells and highly crystalline crustacean materials.
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Affiliation(s)
- Jiaqi Cheng
- State Key Laboratory of Food Science and TechnologyJiangnan UniversityWuxiChina
- School of Food Science and TechnologyJiangnan UniversityWuxiChina
| | - Huaping Zhu
- China Rural Technology Development CenterBeijingChina
| | - Jianlian Huang
- Key Laboratory of Refrigeration and Conditioning Aquatic Products ProcessingMinistry of Agriculture and Rural AffairsXiamenChina
- Fujian Anjoyfood Share Co. Ltd.XiamenChina
| | - Jianxin Zhao
- State Key Laboratory of Food Science and TechnologyJiangnan UniversityWuxiChina
- School of Food Science and TechnologyJiangnan UniversityWuxiChina
| | - Bowen Yan
- State Key Laboratory of Food Science and TechnologyJiangnan UniversityWuxiChina
- School of Food Science and TechnologyJiangnan UniversityWuxiChina
| | - Shenyan Ma
- State Key Laboratory of Food Science and TechnologyJiangnan UniversityWuxiChina
- School of Food Science and TechnologyJiangnan UniversityWuxiChina
| | - Hao Zhang
- State Key Laboratory of Food Science and TechnologyJiangnan UniversityWuxiChina
- School of Food Science and TechnologyJiangnan UniversityWuxiChina
| | - Daming Fan
- State Key Laboratory of Food Science and TechnologyJiangnan UniversityWuxiChina
- School of Food Science and TechnologyJiangnan UniversityWuxiChina
- Key Laboratory of Refrigeration and Conditioning Aquatic Products ProcessingMinistry of Agriculture and Rural AffairsXiamenChina
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13
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The induction of salt stress tolerance by jasmonic acid treatment in roselle (Hibiscus sabdariffa L.) seedlings through enhancing antioxidant enzymes activity and metabolic changes. Biologia (Bratisl) 2020. [DOI: 10.2478/s11756-020-00444-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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