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Chen R, Zhang K, Shi Y, Ettelaie R, Shi Y, Li D, Zhang S, Dang Y, Chen J. Advancing Photodynamic Antimicrobial Strategy: Sustainable Fabrication of Novel Lauryl Gallate-Chitosan Hydrophobic Films with Rapid Bacterial Capture and Biofilms Elimination Capabilities for Promoting Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:19571-19584. [PMID: 38564737 DOI: 10.1021/acsami.4c01735] [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: 04/04/2024]
Abstract
Bioinspired photoactive composites, in terms of photodynamic inactivation, cost-effectiveness, and biosafety, are promising alternatives to antibiotics for combating bacterial infections while avoiding antibacterial resistance. However, the weak bacterial membrane affinity of the photoactive substrate and the lack of synergistic antibacterial effect remain crucial shortcomings for their antibacterial applications. Herein, we developed a hydrophobic film from food antioxidant lauryl gallate covalently functionalized chitosan (LG-g-CS conjugates) through a green radical-induced grafting reaction that utilizes synergistic bacteria capture, contact-killing, and photodynamic inactivation activities to achieve enhanced bactericidal and biofilm elimination capabilities. Besides, the grafting reaction mechanism between LG and CS in the ascorbic acid (AA)/H2O2 redox system was further proposed. The LG-g-CS films feature hydrophobic side chains and photoactive phenolic hydroxyl groups, facilitating dual bactericidal activities through bacteria capture and contact-killing via strong hydrophobic and electrostatic interactions with bacterial membranes as well as blue light (BL)-driven photodynamic bacterial eradication through the enhanced generation of reactive oxygen species. As a result, the LG-g-CS films efficiently capture and immobilize bacteria and exhibit excellent photodynamic antibacterial activity against model bacteria (Escherichia coli and Staphylococcus aureus) and their biofilms under BL irradiation. Moreover, LG-g-CS films could significantly promote the healing process of S. aureus-infected wounds. This research demonstrates a new strategy for designing and fabricating sustainable bactericidal and biofilm-removing materials with a high bacterial membrane affinity and photodynamic activity.
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Affiliation(s)
- Rukang Chen
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, Zhejiang, China
| | - Ke Zhang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, Zhejiang, China
| | - Yugang Shi
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, Zhejiang, China
- Institute of Food Microbiology, Zhejiang Gongshang University, Hangzhou 310035, Zhejiang, China
| | - Rammile Ettelaie
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, U.K
| | - Yu Shi
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, Zhejiang, China
| | - Donghui Li
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, Zhejiang, China
| | - Siying Zhang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, Zhejiang, China
| | - Yali Dang
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Ningbo University, Ningbo 315211, China
| | - Jianshen Chen
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, Zhejiang, China
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Budiman A, Nurfadilah N, Muchtaridi M, Sriwidodo S, Aulifa DL, Rusdin A. The Impact of Water-Soluble Chitosan on the Inhibition of Crystal Nucleation of Alpha-Mangostin from Supersaturated Solutions. Polymers (Basel) 2022; 14:polym14204370. [PMID: 36297947 PMCID: PMC9610582 DOI: 10.3390/polym14204370] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 11/16/2022] Open
Abstract
The use of an amorphous drugs system to generate supersaturated solutions is generally developed to improve the solubility and dissolution of poorly soluble drugs. This is because the drug in the supersaturation system has a high energy state with a tendency to precipitate. In the amorphous solid dispersion (ASD) formulation, it was discovered that polymer plays a critical role in inhibiting nucleation or crystal growth of the drugs. Therefore, this study aimed to evaluate the crystallization inhibition of water-soluble chitosan (WSC) on nucleation as well as crystal growth from alpha-mangostin (AM) and elucidate its inhibition mechanism in the supersaturated solutions. During the experiment, WSC was used as a polymer to evaluate its ability to inhibit AM nucleation. The interaction between WSC and AM was also estimated using FT-IR, NMR, and in silico study. The result showed that in the absence of polymer, the concentration of AM rapidly decreased due to the precipitation in one minute. Meanwhile, the addition of WSC effectively inhibited AM crystallization and maintained a supersaturated state for the long term. FT-IR measurement also revealed that the shift in the amine primer of WSC occurred because of the interaction between WSC and AM. In the 1H NMR spectra, the proton peaks of WSC showed an upfield shift with the presence of AM, indicating the intermolecular interactions between AM and WSC. Moreover, in silico study revealed the hydrogen bond interaction between the carbonyl group of AM with hydrocarbon groups of WSC. This indicated that WSC interacted with AM in the supersaturated solution and suppressed their molecular mobility, thereby inhibiting the formation of the crystal nucleus. Based on these results, it can be concluded that the interaction between drug polymers contributed to the maintenance of the drug supersaturation by inhibiting both nucleation and growth.
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Affiliation(s)
- Arif Budiman
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia
- Correspondence:
| | - Nisrina Nurfadilah
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia
| | - Muchtaridi Muchtaridi
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia
| | - Sriwidodo Sriwidodo
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia
| | - Diah Lia Aulifa
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia
| | - Agus Rusdin
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia
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Yong H, Hu H, Yun D, Jin C, Liu J. Horseradish peroxidase catalyzed grafting of chitosan oligosaccharide with different flavonols: structures, antioxidant activity and edible coating application. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:4363-4372. [PMID: 35066885 DOI: 10.1002/jsfa.11790] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 01/07/2022] [Accepted: 01/23/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Enzymatic catalyzed grafting of oligosaccharides with polyphenols is a safe and environmentally friendly approach to simultaneously enhance the bioactivity of oligosaccharides and the solubility of polyphenols. In this study, chitosan oligosaccharide (COS) was grafted with three different flavonols including myricetin (MYR), quercetin (QUE) and kaempferol (KAE) by horseradish peroxidase (HRP) catalysis. The structures, antioxidant activity and edible coating application of COS-flavonol conjugates were investigated. RESULTS The total phenol content of COS-MYR, COS-QUE and COS-KAE conjugates was 59.89, 68.37 and 53.77 mg gallic acid equivalents g-1 , respectively. Thin layer chromatography showed the conjugates did not contain ungrafted flavonols. COS-flavonol conjugates showed ultraviolet absorption peak at about 294 nm, corresponding to the A-ring of flavonols. Fourier-transform infrared spectra of conjugates confirmed the formation of Schiff-base and Michael-addition products. The proton-nuclear magnetic resonance spectrum of COS-KAE conjugate exhibited phenyl proton signals of KAE. X-ray diffraction patterns of conjugates showed some diffraction peaks of flavonols. COS-flavonol conjugates presented rough and porous morphologies with sheet-like and/or blocky structures. The conjugates showed higher water solubility, free radical scavenging activity and reducing power than flavonols. Moreover, fish gelatin/COS-flavonol conjugate coatings effectively prolonged the shelf life of refrigerated largemouth bass (Micropterus salmoides) fillets from 5 days to 7-8 days. CONCLUSION COS-flavonol conjugates prepared by HRP catalysis have great potentials as novel antioxidant agents. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Huimin Yong
- College of Food Science and Engineering, Yangzhou University, Yangzhou, P. R. China
| | - Huixia Hu
- College of Food Science and Engineering, Yangzhou University, Yangzhou, P. R. China
| | - Dawei Yun
- College of Food Science and Engineering, Yangzhou University, Yangzhou, P. R. China
| | - Changhai Jin
- College of Food Science and Engineering, Yangzhou University, Yangzhou, P. R. China
| | - Jun Liu
- College of Food Science and Engineering, Yangzhou University, Yangzhou, P. R. China
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Sehrawat R, Rathee P, Akkol EK, Khatkar S, Lather A, Redhu N, Khatkar A. Phenolic Acids - Versatile Natural Moiety With Numerous Biological Applications. Curr Top Med Chem 2022; 22:1472-1484. [PMID: 35747974 DOI: 10.2174/1568026622666220623114450] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 04/11/2022] [Accepted: 04/27/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Medicinal uses of natural phenolic acids and its synthetic derivatives have been augmented in recent years. Phenolic acids are chemically defined secondary plant metabolitesand being moieties or leads are much versatile in nature with a widescope of biological activities which seek the attention of researchers across the worldto synthesize different derivatives of phenolic acids and screen them for their various biological properties.These compounds are of meticulous interest due to the properties they possess and their occurrence.Based on the convincing evidences reported in the literature, it is suggested that phenolic acids andtheir derivatives are promising molecules as a drug. OBJECTIVE The present review article aims to bring together the information on the biosynthesis, metabolism, and sources of phenolic acids and emphasize on the therapeutic potential of phenolic acid and its synthetic derivatives to comprehensively portray the current scenery for researchers interested in designing drugs for furthering this study. CONCLUSION Phenolic acids being moieties or lead are much versatile in nature as they possess a wide range of biological activities like antimicrobial, antioxidant, antiviral, antiulcer, anti-inflammatory, antidiabetic, anticancer and many more which offers researchers to explore more about these or many untapped benefits in medicinal field. The information mentioned in this article will be helpful to the forthcoming researchers working in this area. Phenolic acids have massive potential to be investigated for novel medicinal possibilities and for the development of new chemical moieties to treat different diseases of clinical importance.
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Affiliation(s)
| | - Priyanka Rathee
- SBMN Institute of Pharmaceutical Sciences and Research, B.M.U., Rohtak
| | - Esra Küpelli Akkol
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, Etiler 06330, Ankara, Turkey
| | - Sarita Khatkar
- Vaish Institute of Pharmaceutical Education and Research, Rohtak
| | - Amit Lather
- Vaish Institute of Pharmaceutical Education and Research, Rohtak
| | - Neelam Redhu
- Former Research Scholar, Department of Microbiology, M.D.University, Rohtak
| | - Anurag Khatkar
- Department of Pharmaceutical Sciences, M.D.University, Rohtak
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Li F, Shao R, Mao Y, Yu W, Yu H. Enzyme Cascade Reaction Involving Lytic Polysaccharide Monooxygenase and Dye-Decolorizing Peroxidase for Chitosan Functionalization. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1049-1056. [PMID: 33428421 DOI: 10.1021/acs.jafc.0c06856] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In situ H2O2 generation systems are efficient for H2O2-dependent biocatalytic oxidation reactions. Here, we report that lytic polysaccharide monooxygenases (LPMOs), copper-dependent polysaccharide monooxygenases, can efficiently supply H2O2 in situ to dye-decolorizing peroxidases (DyPs) using substrate gallic acid (GA) for chitosan functionalization. The maximum grafting ratio induced by the cascade reaction was significantly higher than that achieved by a reaction with initial exogenous H2O2. The maximum grafting ratio was obtained with 12 g/L GA, 5.6 mg/L DyP, 20-30 mg/L LPMO, and pH 4.5-5.0. UV-vis, Fourier transform infrared (FT-IR), and nuclear magnetic resonance (1H NMR) spectroscopy confirmed GA grafting onto chitosan. X-ray diffraction (XRD) analysis and thermogravimetric analysis (TGA) indicated that GA-chitosan conjugates had lower thermal stability and crystallinity than chitosan. The GA-chitosan conjugates had significantly higher antioxidant activity than chitosan. This study supplies a green and high-efficiency approach to achieve an enzymatic cascade reaction for chitosan functionalization and has potential applications in H2O2-dependent biocatalytic oxidation reactions.
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Affiliation(s)
- Fei Li
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Ruijian Shao
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Yingzheng Mao
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Wen Yu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P. R. China
| | - Hongbo Yu
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
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