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Zang J, Zhang L, Guo R, Kong L, Yu Y, Li S, Liu M, Wang J, Zhang Z, Li X, Liu Y. Baicalein loaded liposome with hyaluronic acid and Polyhexamethylene guanidine modification for anti methicillin-resistant Staphylococcus aureus infection. Int J Biol Macromol 2024; 276:133432. [PMID: 38936579 DOI: 10.1016/j.ijbiomac.2024.133432] [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: 12/17/2023] [Revised: 06/15/2024] [Accepted: 06/24/2024] [Indexed: 06/29/2024]
Abstract
Targeting delivery to the infection site and good affinity of vehicle to the bacterial are two main concerns in therapy of bacterial infection, and on-demand release of drug is another important issue. In this work, a liposome drug delivery system (HA/P/BAI-lip) incorporated with baicalein and modified by PHMG and HA was prepared. Several characterizations were conducted to examine the physical properties of liposome. Then it was applied to treatments of MRSA induced dorsal subcutaneous abscess model and the thigh muscle infected model. The presence of guanidine group in HA/P/BAI-lip rendered the liposome satisfactory bacterial target ability and good pH sensitive properties. The lipase secreted by bacterial could promote the hydrolysis of soybean phosphatidylcholine (SPC) in liposome. The modification of HA in HA/P/BAI-lip could lead the drug system to the exact infected site where CD44 was abundant because of inflammation. The low pH microenvironment characteristic of bacterial infection could induce the swelling of liposome following by degradation. Taken together, baicalein could be released selectively at the infected site to exert antibacterial capacity. HA/P/BAI-lip showed impressive antibacterial ability and dramatically decrease the bacterial burden of infection site and alleviate the infiltration of inflammatory cells, facilitating the recovery of infection.
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Affiliation(s)
- Juan Zang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Shengming 1 Road 77, Double D port, Dalian 116600, China
| | - Lu Zhang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Shengming 1 Road 77, Double D port, Dalian 116600, China
| | - Ruibo Guo
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Shengming 1 Road 77, Double D port, Dalian 116600, China
| | - Liang Kong
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Shengming 1 Road 77, Double D port, Dalian 116600, China
| | - Yang Yu
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Shengming 1 Road 77, Double D port, Dalian 116600, China
| | - Shutong Li
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Shengming 1 Road 77, Double D port, Dalian 116600, China
| | - Mo Liu
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Shengming 1 Road 77, Double D port, Dalian 116600, China
| | - Jiahua Wang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Shengming 1 Road 77, Double D port, Dalian 116600, China
| | - Zixu Zhang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Shengming 1 Road 77, Double D port, Dalian 116600, China
| | - Xuetao Li
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Shengming 1 Road 77, Double D port, Dalian 116600, China.
| | - Yang Liu
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Shengming 1 Road 77, Double D port, Dalian 116600, China.
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Trindade AC, de Castro PARR, Pinto BCDS, Ambrósio JAR, de Oliveira Junior BM, Beltrame Junior M, Gonçalves EP, Pinto JG, Ferreira-Strixino J, Simioni AR. Gelatin nanoparticles via template polymerization for drug delivery system to photoprocess application in cells. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 33:551-568. [PMID: 34705614 DOI: 10.1080/09205063.2021.1998819] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Photodynamic therapy (PDT) is a clinical treatment based on the activation of light-absorbing photosensitizers (PS) to generate reactive oxygen species, which are toxic to the targeted disease cells. Because most PS are hydrophobic with poor water solubility, it is necessary to encapsulate and solubilize PS in aqueous conditions to improve the photodynamic action for this compound. In this work, gelatin-poly(acrylic acid) nanoparticles (PAA/gelatin nanoparticles) via template polymerization for incorporation aluminum chloride phthalocyanine (ClAlPc) as a model drug for PDT application were developed. Biocompatible core-shell polymeric nanoparticles were fabricated via template polymerization using gelatin and acrylic acid as a reaction system. The nanoparticulate system was studied by scanning electron microscopy, steady-state, and their biological activity was evaluated using in vitro cancer cell lines by classical MTT assay. The obtained nanoparticles had a spherical shape and DLS particle size were determined further and was found to be around 170 nm. The phthalocyanine-loaded-nanoparticles maintained their photophysical behaviour after encapsulation. It is found that ClAlPc can be released from the nanoparticles in a sustained manner with a small initial burst release. In vitro cytotoxicity revealed that ClAlPc-loaded nanoparticles had similar cytotoxicity to free ClAlPc with mouse melanoma cancer cell line (B16-F10). In vitro photoeffects assay indicated that the nanoparticle formulation was superior in anticancer effect to free ClAlPc on mouse melanoma cancer cell line B16-F10. The results indicate that ClAlPc encapsulated in gelatin-poly(acrylic acid) nanoparticles are a successful delivery system for improving photodynamic activity in the target tissue.
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Affiliation(s)
- Agnes Cecheto Trindade
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, Brazil
| | | | - Bruna Cristina Dos Santos Pinto
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, Brazil
| | | | | | - Milton Beltrame Junior
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, Brazil
| | - Erika Peterson Gonçalves
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, Brazil
| | - Juliana Guerra Pinto
- Laboratory of Photobiology Applied to Health, Institute of Research and Development, University of Vale do Paraíba, São José dos Campos, Brazil
| | - Juliana Ferreira-Strixino
- Laboratory of Photobiology Applied to Health, Institute of Research and Development, University of Vale do Paraíba, São José dos Campos, Brazil
| | - Andreza Ribeiro Simioni
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, Brazil
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Song Z, Ding J, Liu B, Liu X, Han X, Deng Y, Hu W, Zhong C. A Rechargeable Zn-Air Battery with High Energy Efficiency and Long Life Enabled by a Highly Water-Retentive Gel Electrolyte with Reaction Modifier. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1908127. [PMID: 32301217 DOI: 10.1002/adma.201908127] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/13/2020] [Accepted: 03/18/2020] [Indexed: 06/11/2023]
Abstract
Tremendous effort have recently been made in optimizing the air catalysts of flexible zinc-air batteries (ZABs). Unfortunately, the bottleneck factors in electrolytes that largely limit the working life and energy efficiency of ZABs have long been relatively neglected. Herein, an alkaline gel polymer electrolyte (GPE) is fabricated through multiple crosslinking reactions among poly(vinyl alcohol) (PVA), poly(acrylic acid), and graphene oxide followed by intense uptake of an alkali and the KI reaction modifier. The prepared GPE exhibits essentially improved properties compared to traditional PVA gel electrolyte in terms of mechanical strength, ionic conductivity, and water retention capability. In addition, the introduced reaction modifier I- in the GPE changes the path of the conventional oxygen evolution reaction, leading to a more thermodynamically favorable path. The optimized GPE enables flexible ZABs exhibiting an exceptionally low charge potential of 1.69 V, a long cycling time of 200 h, a high energy efficiency of 73%, and rugged reliability under different extreme working conditions. Moreover, the successful integration of ZABs in a variety of real wearable electronic devices demonstrates their excellent practicability as flexible power sources.
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Affiliation(s)
- Zhishuang Song
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Jia Ding
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Bin Liu
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xiaorui Liu
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xiaopeng Han
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Yida Deng
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Wenbin Hu
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Cheng Zhong
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
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Cai Q, Yang S, Zhang C, Li Z, Li X, Shen Z, Zhu W. Facile and Versatile Modification of Cotton Fibers for Persistent Antibacterial Activity and Enhanced Hygroscopicity. ACS APPLIED MATERIALS & INTERFACES 2018; 10:38506-38516. [PMID: 30360113 DOI: 10.1021/acsami.8b14986] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Natural fibers with functionalities have attracted considerable attention. However, developing facile and versatile strategies to modify natural fibers is still a challenge. In this study, cotton fibers, the most widely used natural fibers, were partially oxidized by sodium periodate in aqueous solution, to give oxidized cotton fibers containing multiple aldehyde groups on their surface. Then poly(hexamethylene guanidine) was chemically grafted onto the oxidized cotton fibers forming Schiff bases between the terminal amines of poly(hexamethylene guanidine) and the aldehyde groups of oxidized cotton fibers. Finally, carbon-nitrogen double bonds were reduced by sodium cyanoborohydride, to bound poly(hexamethylene guanidine) covalently to the surface of cotton fibers. These functionalized fibers show strong and persistent antibacterial activity: complete inhibition against Escherichia coli and Staphylococcus aureus was maintained even after 1000 consecutive washing in distilled water. On the other hand, cotton fibers with only physically adsorbed poly(hexamethylene guanidine) lost their antibacterial activity entirely after a few washes. According to Cell Counting Kit-8 assay and hemolytic analysis, toxicity did not significantly increase after chemical modification. Attributing to the hydrophilicity of poly(hexamethylene guanidine) coatings, the modified cotton fibers were also more hygroscopic compared to untreated cotton fibers, which can improve the comfort of the fabrics made of modified cotton fibers. This study provides a facile and versatile strategy to prepare modified polysaccharide natural fibers with durable antibacterial activity, biosecurity, and comfortable touch.
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Affiliation(s)
- Qiuquan Cai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , People's Republic of China
| | - Shuliang Yang
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatology Hospital, School of Medicine , Zhejiang University , Hangzhou 310006 , China
| | - Chao Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , People's Republic of China
| | - Zimeng Li
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatology Hospital, School of Medicine , Zhejiang University , Hangzhou 310006 , China
| | - Xiaodong Li
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatology Hospital, School of Medicine , Zhejiang University , Hangzhou 310006 , China
| | - Zhiquan Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , People's Republic of China
| | - Weipu Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , People's Republic of China
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province , Hangzhou 310027 , China
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Du H, Wang Y, Yao X, Luo Q, Zhu W, Li X, Shen Z. Injectable cationic hydrogels with high antibacterial activity and low toxicity. Polym Chem 2016. [DOI: 10.1039/c6py01346e] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We prepared injectable cationic hydrogels with strong antibacterial activity and remarkably low toxicity by in situ thiol–ene “click” reaction between dimethacrylate terminated poly(hexamethylene guanidine) (PHMGDMA) and poly[oligo(ethylene) glycol mercaptosuccinate] (POEGMS) under physiological conditions.
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Affiliation(s)
- Hong Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Ying Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Xuxia Yao
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Qiaojie Luo
- Department of Oral and Maxillofacial Surgery
- Affiliated Stomatology Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310006
| | - Weipu Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Xiaodong Li
- Department of Oral and Maxillofacial Surgery
- Affiliated Stomatology Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310006
| | - Zhiquan Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
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Wei D, Chen Y, Zhang Y. Preparation of novel stable antibacterial nanoparticles using hydroxyethylcellulose and application in paper. Carbohydr Polym 2015; 136:543-50. [PMID: 26572386 DOI: 10.1016/j.carbpol.2015.09.086] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 09/09/2015] [Accepted: 09/23/2015] [Indexed: 11/30/2022]
Abstract
Taking advantage of the self-assembly between the components, novel stable antibacterial nanoparticles were efficiently fabricated via a facile one-step co-polymerization of acrylic acid (AA) and N,N'-methylenebisacrylamide (MBA) on a mixed aqueous solution of poly(hexamethylene guanidine hydrochloride) (PHMG) and hydroxyethylcellulose (HEC). The z-average hydrodynamic diameters of the nanoparticles ranged from 220 nm to 450 nm. The inner layer of the nanoparticles is composed of water-insoluble interpolymer complexes of PHMG and PAA networks, while the outer layer is composed of PHMG and HEC. The nanoparticles are stabilized by electrostatic interactions, hydrogen bonding interactions, and the chemical bonds. The nanoparticle solution remained stable in a wide pH range of 2.0-12.0 and at salt concentrations below 0.25 mol/L. The nanoparticles were incorporated into handsheets using a dipping treatment. The resulted handsheets exhibited excellent antimicrobial activities even after multiple water washing treatments. The nanoparticles are promising in fabricating paper, water-based coatings and textiles with permanent antibacterial activity.
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Affiliation(s)
- Dafu Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yan Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Youwei Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
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