1
|
Liu Y, Chen W, Mu W, Zhou Q, Liu J, Li B, Liu T, Yu T, Hu N, Chen X. Physiological Microenvironment Dependent Self-Cross-Linking of Multifunctional Nanohybrid for Prolonged Antibacterial Therapy via Synergistic Chemodynamic-Photothermal-Biological Processes. NANO LETTERS 2024; 24:6906-6915. [PMID: 38829311 DOI: 10.1021/acs.nanolett.4c00671] [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: 06/05/2024]
Abstract
Herein, a multifunctional nanohybrid (PL@HPFTM nanoparticles) was fabricated to perform the integration of chemodynamic therapy, photothermal therapy, and biological therapy over the long term at a designed location for continuous antibacterial applications. The PL@HPFTM nanoparticles consisted of a polydopamine/hemoglobin/Fe2+ nanocomplex with comodification of tetrazole/alkene groups on the surface as well as coloading of antimicrobial peptides and luminol in the core. During therapy, the PL@HPFTM nanoparticles would selectively cross-link to surrounding bacteria via tetrazole/alkene cycloaddition under chemiluminescence produced by the reaction between luminol and overexpressed H2O2 at the infected area. The resulting PL@HPFTM network not only significantly damaged bacteria by Fe2+-catalyzed ROS production, effective photothermal conversion, and sustained release of antimicrobial peptides but dramatically enhanced the retention time of these therapeutic agents for prolonged antibacterial therapy. Both in vitro and in vivo results have shown that our PL@HPFTM nanoparticles have much higher bactericidal efficiency and remarkably longer periods of validity than free antibacterial nanoparticles.
Collapse
Affiliation(s)
- Yi Liu
- College of Chemical Engineering, Sichuan University of Science & Engineering, Zigong 643000, People's Republic of China
- Institute of Precision Medicine, Zigong Academy of Big Data and Artificial Intelligence in Medical Science, Zigong Fourth People's Hospital, Zigong 643000, People's Republic of China
- Department of Chemical Engineering, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institution of Polymer Science in Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiao Tong University, Xi'an 710049, People's Republic of China
- Sichuan Clinical Research Center for Clinical Laboratory, Zigong Fourth People's Hospital, Zigong 643000, People's Republic of China
| | - Wei Chen
- Institute of Precision Medicine, Zigong Academy of Big Data and Artificial Intelligence in Medical Science, Zigong Fourth People's Hospital, Zigong 643000, People's Republic of China
- Department of Urology, Zigong Fourth People's Hospital, Zigong 643000, People's Republic of China
- Sichuan Clinical Research Center for Clinical Laboratory, Zigong Fourth People's Hospital, Zigong 643000, People's Republic of China
| | - Wenyun Mu
- Department of Chemical Engineering, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institution of Polymer Science in Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiao Tong University, Xi'an 710049, People's Republic of China
| | - Qian Zhou
- College of Chemical Engineering, Sichuan University of Science & Engineering, Zigong 643000, People's Republic of China
- Department of Chemical Engineering, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institution of Polymer Science in Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiao Tong University, Xi'an 710049, People's Republic of China
| | - Jie Liu
- Department of Chemical Engineering, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institution of Polymer Science in Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiao Tong University, Xi'an 710049, People's Republic of China
| | - Baixue Li
- College of Chemical Engineering, Sichuan University of Science & Engineering, Zigong 643000, People's Republic of China
- Department of Chemical Engineering, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institution of Polymer Science in Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiao Tong University, Xi'an 710049, People's Republic of China
| | - Tao Liu
- Department of Chemical Engineering, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institution of Polymer Science in Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiao Tong University, Xi'an 710049, People's Republic of China
| | - Tingting Yu
- College of Chemical Engineering, Sichuan University of Science & Engineering, Zigong 643000, People's Republic of China
| | - Nan Hu
- College of Chemical Engineering, Sichuan University of Science & Engineering, Zigong 643000, People's Republic of China
| | - Xin Chen
- Department of Chemical Engineering, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institution of Polymer Science in Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiao Tong University, Xi'an 710049, People's Republic of China
| |
Collapse
|
2
|
Zeng Y, Hu X, Cai Z, Qiu D, Ran Y, Ding Y, Shi J, Cai X, Pan Y. Photodynamic and nitric oxide therapy-based synergistic antimicrobial nanoplatform: an advanced root canal irrigation system for endodontic bacterial infections. J Nanobiotechnology 2024; 22:213. [PMID: 38689259 PMCID: PMC11059741 DOI: 10.1186/s12951-024-02483-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 04/16/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND The main issues faced during the treatment of apical periodontitis are the management of bacterial infection and the facilitation of the repair of alveolar bone defects to shorten disease duration. Conventional root canal irrigants are limited in their efficacy and are associated with several side effects. This study introduces a synergistic therapy based on nitric oxide (NO) and antimicrobial photodynamic therapy (aPDT) for the treatment of apical periodontitis. RESULTS This research developed a multifunctional nanoparticle, CGP, utilizing guanidinylated poly (ethylene glycol)-poly (ε-Caprolactone) polymer as a carrier, internally loaded with the photosensitizer chlorin e6. During root canal irrigation, the guanidino groups on the surface of CGP enabled effective biofilm penetration. These groups undergo oxidation by hydrogen peroxide in the aPDT process, triggering the release of NO without hindering the production of singlet oxygen. The generated NO significantly enhanced the antimicrobial capability and biofilm eradication efficacy of aPDT. Furthermore, CGP not only outperforms conventional aPDT in eradicating biofilms but also effectively promotes the repair of alveolar bone defects post-eradication. Importantly, our findings reveal that CGP exhibits significantly higher biosafety compared to sodium hypochlorite, alongside superior therapeutic efficacy in a rat model of apical periodontitis. CONCLUSIONS This study demonstrates that CGP, an effective root irrigation system based on aPDT and NO, has a promising application in root canal therapy.
Collapse
Affiliation(s)
- Youyun Zeng
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Xiangyu Hu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Zhibin Cai
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Dongchao Qiu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Ying Ran
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Yiqin Ding
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Jiayi Shi
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Xiaojun Cai
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China.
| | - Yihuai Pan
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China.
| |
Collapse
|
3
|
Abdel Khalek MA, Abdelhameed AM, Abdel Gaber SA. The Use of Photoactive Polymeric Nanoparticles and Nanofibers to Generate a Photodynamic-Mediated Antimicrobial Effect, with a Special Emphasis on Chronic Wounds. Pharmaceutics 2024; 16:229. [PMID: 38399283 PMCID: PMC10893342 DOI: 10.3390/pharmaceutics16020229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/28/2024] [Accepted: 01/31/2024] [Indexed: 02/25/2024] Open
Abstract
This review is concerned with chronic wounds, with an emphasis on biofilm and its complicated management process. The basics of antimicrobial photodynamic therapy (PDT) and its underlying mechanisms for microbial eradication are presented. Intrinsically active nanocarriers (polydopamine NPs, chitosan NPs, and polymeric micelles) that can further potentiate the antimicrobial photodynamic effect are discussed. This review also delves into the role of photoactive electrospun nanofibers, either in their eluting or non-eluting mode of action, in microbial eradication and accelerating the healing of wounds. Synergic strategies to augment the PDT-mediated effect of photoactive nanofibers are reviewed.
Collapse
Affiliation(s)
- Mohamed A. Abdel Khalek
- Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Amr M. Abdelhameed
- Institute of Global Health and Human Ecology, School of Sciences & Engineering, The American University in Cairo, Cairo 11385, Egypt
- Bioscience Research Laboratories Department, MARC for Medical Services and Scientific Research, Giza 11716, Egypt
| | - Sara A. Abdel Gaber
- Nanomedicine Department, Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| |
Collapse
|
4
|
He Y, Luo L, Liu L. Photodynamic therapy for treatment of burns: A system review and meta-analysis of animal study. Photodiagnosis Photodyn Ther 2024; 45:103905. [PMID: 38013017 DOI: 10.1016/j.pdpdt.2023.103905] [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: 08/17/2023] [Revised: 11/18/2023] [Accepted: 11/20/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND AND AIM Burns are common in both everyday life and war. Shock, infection, and organ dysfunction are major complications, among which infection is the most common and has the highest mortality rate. The aim of this study was to evaluate the effect of photodynamic therapy(PDT) on animals suffering from burns. METHODS Through searching Embase, PubMed, Web of Science, and the Cochrane Library, only controlled trials were collected to study the effects of PDT on animals with burns. The included studies were evaluated for methodological quality by the MINORS (Methodological Index for Non-Randomized Studies) assessment tool, and the data analysis software was used to analyze the data accordingly. RESULTS 16 articles were collected between the earliest available date and August 2022. The results of the meta-analysis showed that PDT effectively reduces TNF-α and IL-6 levels in wounds, and increases bFGF and VEGF levels, PDT can also reduce bacterial colonization at the injury site, accelerate the healing of burn wounds, and improve the survival rate. CONCLUSION PDT has been shown to have positive effects as a treatment for animals suffering from burns. It affects the levels of cytokines, reduces bacterial counts in wounds, promotes wound healing, and improves animal survival rates.
Collapse
Affiliation(s)
- Yue He
- Chengdu Second People's Hospital, Chengdu, Sichuan, 610021, China.
| | - Lun Luo
- Chengdu Second People's Hospital, Chengdu, Sichuan, 610021, China.
| | - Luoji Liu
- Chengdu Second People's Hospital, Chengdu, Sichuan, 610021, China
| |
Collapse
|
5
|
Zhang H, Liu N, Zhang Y, Cang H, Cai Z, Huang Z, Li J. Croconaine conjugated cationic polymeric nanoparticles for NIR enhanced bacterial killing. Colloids Surf B Biointerfaces 2024; 233:113665. [PMID: 38008013 DOI: 10.1016/j.colsurfb.2023.113665] [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: 09/16/2023] [Revised: 11/08/2023] [Accepted: 11/20/2023] [Indexed: 11/28/2023]
Abstract
Light-triggered treatment approach has been regarded as an effective option for sterilization due to noninvasiveness, limited drug resistance, and minimized adverse effects. Herein, we designed and synthesized a functionalized cationic polymer, CR-PQAC, with croconaine bridging agent and quaternary ammonium groups for photothermal enhanced antimicrobial therapy under near-infrared irradiation. The quaternary ammonium group on the pendent chain endowing CR-PQAC the ability to effectively bind to bacteria. The CR-PQAC could self-assembles into micellar nanoparticles in aqueous solution, which exhibited strong absorption in the near-infrared (NIR) region, excellent photostability, and photothermal conversion efficiency of up to 43.8 %. Notably, the CR-PQAC nanoparticles presented remarkable antibacterial activity against both methicillin-resistant Staphylococcus aureus (Gram-positive) and Escherichia coli (Gram-negative) bacteria with 808 nm laser irradiation. Moreover, the developed CR-PQAC has negligible dark cytotoxicity and good hemolytic compatibility against mammalian cells. Both in vitro and in vivo studies have demonstrated that the desirable antibacterial efficacy of CR-PQAC was obtained. Therefore, the proposed CR-PQAC may be a promising antimicrobial agent for NIR-enhanced killing bacterial.
Collapse
Affiliation(s)
- Huaihong Zhang
- School of Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
| | - Na Liu
- School of Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Yuting Zhang
- School of Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Hui Cang
- School of Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Zhaosheng Cai
- School of Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Ziqun Huang
- College of Materials and Chemical Engineering, West Anhui University, Luan 237012, China.
| | - Jun Li
- College of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| |
Collapse
|
6
|
Lv J, Wang S, Qi C, Li M, Sun Y, Yang Y, Zeng C, Shen R, Ma H. A fluorescent quaternary phosphonium main-chain-type polymer: an opportunity to fabricate functional materials with excellent antibacterial activity and bacterial imaging capability. J Mater Chem B 2023; 11:9237-9245. [PMID: 37702147 DOI: 10.1039/d3tb01240a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
The large-scale transmission and infection of pathogens worldwide have encouraged scientists to develop new antibacterial agents that do not succumb to bacterial resistance, which is not only of significant research interest but also challenging. In this work, we fabricated two main-chain (MC)-type cationic polymers (TPE-ammonium polymer and TPE-phosphonium polymer) through a one-step 100% atomic economic reaction. The two polymers demonstrated very promising antibacterial activity and their minimal inhibitory concentration (MIC) values are lower than that of most previously reported antibacterial agents. Especially, the phosphonium-doped MC polymer exhibited very small MICs of 0.24 and 0.98 μg mL-1 against S. aureus and E. coli, respectively. This excellent antibacterial performance by the TPE-phosphonium polymer is attributed to the advantages of the MC-type polymer such as its large molecular weight (Mn = 103 011) and stronger polarization effect from the P atom. More impressively, depending on the typical aggregation-induced emission (AIE) property and excellent antibacterial behaviors, the TPE-phosphonium polymer was successfully used for bacterial imaging and real-time monitoring of bacterial viability.
Collapse
Affiliation(s)
- Jiawei Lv
- Key Laboratory of Polymer Materials of Gansu Province, Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China.
| | - Saicuo Wang
- China Agricultural Vet. Bio. Science and Technology Co., Ltd, Lanzhou 730046, P. R. China
| | - Chunxuan Qi
- AIE Research Centre, Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, P. R. China
| | - Muheman Li
- Key Laboratory of Polymer Materials of Gansu Province, Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China.
| | - Yuqing Sun
- Key Laboratory of Polymer Materials of Gansu Province, Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China.
| | - Yuan Yang
- Key Laboratory of Polymer Materials of Gansu Province, Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China.
| | - Cheng Zeng
- Key Laboratory of Polymer Materials of Gansu Province, Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China.
| | - Richao Shen
- Key Laboratory of Polymer Materials of Gansu Province, Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China.
| | - Hengchang Ma
- Key Laboratory of Polymer Materials of Gansu Province, Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China.
| |
Collapse
|
7
|
Li X, Jing X, Yu Z, Huang Y. Diverse Antibacterial Treatments beyond Antibiotics for Diabetic Foot Ulcer Therapy. Adv Healthc Mater 2023; 12:e2300375. [PMID: 37141030 DOI: 10.1002/adhm.202300375] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/06/2023] [Indexed: 05/05/2023]
Abstract
Diabetic foot ulcer (DFU), a common complication of diabetes, has become a great burden to both patients and the society. The delayed wound closure of ulcer sites resulting from vascular damage and neutrophil dysfunction facilitates bacterial infection. Once drug resistance occurs or bacterial biofilm is formed, conventional therapy tends to fail and amputation is unavoidable. Therefore, effective antibacterial treatment beyond antibiotics is of utmost importance to accelerate the wound healing process and prevent amputation. Considering the complexity of multidrug resistance, biofilm formation, and special microenvironments (such as hyperglycemia, hypoxia, and abnormal pH value) at the infected site of DFU, several antibacterial agents and different mechanisms have been explored to achieve the desired outcome. The present review focuses on the recent progress of antibacterial treatments, including metal-based medications, natural and synthesized antimicrobial peptides, antibacterial polymers, and sensitizer-based therapy. This review provides a valuable reference for the innovation of antibacterial material design for DFU therapy.
Collapse
Affiliation(s)
- Xiaoyuan Li
- Faculty of Chemistry, Northeast Normal University, Renmin Street, Changchun, 130024, P. R. China
| | - Xin Jing
- Faculty of Chemistry, Northeast Normal University, Renmin Street, Changchun, 130024, P. R. China
| | - Ziqian Yu
- Faculty of Chemistry, Northeast Normal University, Renmin Street, Changchun, 130024, P. R. China
| | - Yubin Huang
- Faculty of Chemistry, Northeast Normal University, Renmin Street, Changchun, 130024, P. R. China
| |
Collapse
|
8
|
Shen Z, Zhu W, Huang Y, Zhang J, Wu Y, Pan Y, Yang G, Wang D, Li Y, Tang BZ. Visual Multifunctional Aggregation-Induced Emission-Based Bacterial Cellulose for Killing of Multidrug-Resistant Bacteria. Adv Healthc Mater 2023; 12:e2300045. [PMID: 37042250 DOI: 10.1002/adhm.202300045] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/18/2023] [Indexed: 04/13/2023]
Abstract
Multidrug-resistant (MDR) bacteria-related wound infections are a thorny issue. It is urgent to develop new antibacterial wound dressings that can not only prevent wounds from MDR bacteria infection but also promote wound healing. Herein, an aggregation-induced emission (AIE) molecule BITT-composited bacterial cellulose (BC) is presented as wound dressings. BC-BITT composites have good transparency, making it easy to monitor the wound healing process through the composite membrane. The BC-BITT composites retain the advantages of biocompatible BC, and display photodynamic and photothermal synergistic antibacterial effects under irradiation of a 660 nm laser. Furthermore, the BC-BITT composites show excellent wound healing performance in a mouse full-thickness skin wound model infected by MDR bacteria, simultaneously with negligible toxicity. This work paves a way for treating clinically troublesome wound infections.
Collapse
Affiliation(s)
- Zipeng Shen
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Wei Zhu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology and Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Provincial Engineering Research Center for Green and Low-carbon Dyeing and Finishing, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yajia Huang
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Jiangjiang Zhang
- Department of Biomedical Engineering, Southern University of Science and Technology Shenzhen, Guangdong, 518055, China
| | - Yifan Wu
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Yinzhen Pan
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Guang Yang
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Dong Wang
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Ying Li
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
- Innovation Research Center for AIE Pharmaceutical Biology, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Ben Zhong Tang
- Shenzhen Institute of Molecular Aggregate Science and Engineering, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, 518172, China
| |
Collapse
|
9
|
Chakraborty S, Katsifis G, Roohani I, Boyer C, McKenzie D, Willcox MDP, Chen R, Kumar N. Electrostatic and Covalent Binding of an Antibacterial Polymer to Hydroxyapatite for Protection against Escherichia coli Colonization. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5045. [PMID: 37512322 PMCID: PMC10385198 DOI: 10.3390/ma16145045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023]
Abstract
Orthopedic-device-related infections are notorious for causing physical and psychological trauma to patients suffering from them. Traditional methods of treating these infections have relied heavily on antibiotics and are becoming ineffectual due to the rise of antibiotic-resistant bacteria. Mimics of antimicrobial peptides have emerged as exciting alternatives due to their favorable antibacterial properties and lack of propensity for generating resistant bacteria. In this study, the efficacy of an antibacterial polymer as a coating material for hydroxyapatite and glass surfaces, two materials with wide ranging application in orthopedics and the biomedical sciences, is demonstrated. Both physical and covalent modes of attachment of the polymer to these materials were explored. Polymer attachment to the material surfaces was confirmed via X-ray photoelectron spectroscopy and contact angle measurements. The modified surfaces exhibited significant antibacterial activity against the Gram-negative bacterium E. coli, and the activity was retained for a prolonged period on the surfaces of the covalently modified materials.
Collapse
Affiliation(s)
| | - Georgio Katsifis
- School of Physics, University of Sydney, Sydney, NSW 2006, Australia
| | - Iman Roohani
- School of Chemistry, UNSW Sydney, Sydney, NSW 2052, Australia
- Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia
- School of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006, Australia
| | - Cyrille Boyer
- School of Chemical Engineering, UNSW Sydney, Sydney, NSW 2052, Australia
| | - David McKenzie
- School of Physics, University of Sydney, Sydney, NSW 2006, Australia
- Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia
| | - Mark D P Willcox
- School of Optometry and Vision Science, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Renxun Chen
- School of Chemistry, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Naresh Kumar
- School of Chemistry, UNSW Sydney, Sydney, NSW 2052, Australia
| |
Collapse
|
10
|
Zheng K, Li M, Zhou S, Wang J, Gong Y, Zhang P, Ding C. Construction of chitosan-based thermosensitive composite hydrogels for recognizing and combined chemo-photodynamic elimination of Gram-negative bacterial infections. Int J Biol Macromol 2023:125072. [PMID: 37245749 DOI: 10.1016/j.ijbiomac.2023.125072] [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: 02/27/2023] [Revised: 05/13/2023] [Accepted: 05/22/2023] [Indexed: 05/30/2023]
Abstract
Recently, rapid acquisition of bacterial resistance and consequent slow healing of infected wounds threaten human life and health. In this study, chitosan-based hydrogels and nanocomplexes ZnPc(COOH)8:PMB composed of photosensitizer ZnPc(COOH)8 and antibiotic polymyxin B (PMB) were integrated into a thermosensitive antibacterial platform ZnPc(COOH)8:PMB@gel. Interestingly, fluorescence and reactive oxygen species (ROS) of ZnPc(COOH)8:PMB@gel can be triggered by E. coli bacteria at 37 °C, but not by S. aureus bacteria, which gave the potential to simultaneously detect and treat Gram-negative bacteria. The survival rate for a certain amount of E. coli bacteria treated with ZnPc(COOH)8:PMB (ZnPc(COOH)8 2 μM) was decreased by approximately fivefold than that with either ZnPc(COOH)8 or PMB alone, indicating combined antibacterial efficacy. ZnPc(COOH)8:PMB@gel facilitated the complete healing of wounds infected with E. coli bacteria in about seven days, while over 10 % wounds treated with ZnPc(COOH)8 or PMB remained unhealed on the 9th day. ZnPc(COOH)8:PMB resulted in a threefold increase of ZnPc(COOH)8 fluorescence in E. coli bacteria suggesting enhanced uptake of ZnPc(COOH)8 for the intervention of PMB on membrane permeability. The construction principle of the thermosensitive antibacterial platform and the combined antimicrobial strategy can be applied to other photosensitizers and antibiotics for detection and treatment of wound infections.
Collapse
Affiliation(s)
- Ke Zheng
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Mengyuan Li
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Shangmei Zhou
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jinge Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yan Gong
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Peng Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Caifeng Ding
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Department of rehabilitation medicine, Affiliated Qingdao Central Hospital of Qingdao University, Qingdao Cancer Hospital, Qingdao, Shandong 266000, China.
| |
Collapse
|
11
|
Wang X, Wang Y, Tang M, Wang X, Xue W, Zhang X, Wang Y, Lee WH, Wang Y, Sun TY, Gao Y, Li LL. Controlled Cascade-Release and High Selective Sterilization by Core-Shell Nanogels for Microenvironment Regulation of Aerobic Vaginitis. Adv Healthc Mater 2023:e2202432. [PMID: 36745880 DOI: 10.1002/adhm.202202432] [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: 09/22/2022] [Revised: 01/31/2023] [Indexed: 02/08/2023]
Abstract
Aerobic vaginitis (AV) is a gynecological disease associated with vaginal flora imbalance. The nonselective bactericidal nature of antibiotics and low customization rate of probiotic supplementation in existing treatments lead to AV recurrence. Here, a drug delivery strategy is proposed that works with the changing dynamics of the bacterial flora. In particular, a core-shell nanogel (CSNG) is designed to encapsulate prebiotic inulin and antimicrobial peptide Cath 30. The proposed strategy allows for the sequential release of both drugs using gelatinase produced by AV pathogenic bacteria, initially selectively killing pathogenic bacteria and subsequently promoting the proliferation of beneficial bacteria in the vagina. In a simulated infection environment in vitro, the outer layer of CSNGs, Cath 30 is rapidly degraded and potently killed the pathogenic bacterium Staphylococcus aureus at 2-6 h. CSNGs enhances proliferation of the beneficial bacterium Lactobacillus crispatus by more than 50% at 24 h. In a rat AV model, the drug delivery strategy precisely regulated the bacterial microenvironment while controlling the inflammatory response of the vaginal microenvironment. This new treatment approach, configured on demand and precisely controlled, offers a new strategy for the treatment of vaginal diseases.
Collapse
Affiliation(s)
- Xinxin Wang
- Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities, Key Laboratory of Biopharmaceuticals, School of Life Science and Technology, Weifang Medical University, Weifang, Shandong, 261053, P. R. China
| | - Yiting Wang
- Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities, Key Laboratory of Biopharmaceuticals, School of Life Science and Technology, Weifang Medical University, Weifang, Shandong, 261053, P. R. China
| | - Mengteng Tang
- School of Pharmacy, Weifang Medical University, Weifang, Shandong, 261053, P. R. China
| | - Xiaoyi Wang
- Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities, Key Laboratory of Biopharmaceuticals, School of Life Science and Technology, Weifang Medical University, Weifang, Shandong, 261053, P. R. China
| | - Wei Xue
- Affiliated Hospital of Weifang Medical University, School of Clinical Medicine, Weifang Medical University, Weifang, Shandong, 261053, P. R. China
| | - Xiao Zhang
- School of Pharmacy, Weifang Medical University, Weifang, Shandong, 261053, P. R. China.,CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, 100190, P. R. China
| | - Yuxia Wang
- School of Pharmacy, Weifang Medical University, Weifang, Shandong, 261053, P. R. China
| | - Wen-Hui Lee
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, P. R. China
| | - Yingshuai Wang
- Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities, Key Laboratory of Biopharmaceuticals, School of Life Science and Technology, Weifang Medical University, Weifang, Shandong, 261053, P. R. China
| | - Tong-Yi Sun
- Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities, Key Laboratory of Biopharmaceuticals, School of Life Science and Technology, Weifang Medical University, Weifang, Shandong, 261053, P. R. China
| | - Yuanyuan Gao
- School of Pharmacy, Weifang Medical University, Weifang, Shandong, 261053, P. R. China
| | - Li-Li Li
- Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities, Key Laboratory of Biopharmaceuticals, School of Life Science and Technology, Weifang Medical University, Weifang, Shandong, 261053, P. R. China.,CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology (NCNST), No. 11 Beiyitiao, Zhongguancun, Beijing, 100190, P. R. China
| |
Collapse
|
12
|
Zhong Y, Zheng XT, Zhao S, Su X, Loh XJ. Stimuli-Activable Metal-Bearing Nanomaterials and Precise On-Demand Antibacterial Strategies. ACS NANO 2022; 16:19840-19872. [PMID: 36441973 DOI: 10.1021/acsnano.2c08262] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Bacterial infections remain the leading cause of death worldwide today. The emergence of antibiotic resistance has urged the development of alternative antibacterial technologies to complement or replace traditional antibiotic treatments. In this regard, metal nanomaterials have attracted great attention for their controllable antibacterial functions that are less prone to resistance. This review discusses a particular family of stimuli-activable metal-bearing nanomaterials (denoted as SAMNs) and the associated on-demand antibacterial strategies. The various SAMN-enabled antibacterial strategies stem from basic light and magnet activation, with the addition of bacterial microenvironment responsiveness and/or bacteria-targeting selectivity and therefore offer higher spatiotemporal controllability. The discussion focuses on nanomaterial design principles, antibacterial mechanisms, and antibacterial performance, as well as emerging applications that desire on-demand and selective activation (i.e., medical antibacterial treatments, surface anti-biofilm, water disinfection, and wearable antibacterial materials). The review concludes with the authors' perspectives on the challenges and future directions for developing industrial translatable next-generation antibacterial strategies.
Collapse
Affiliation(s)
- Yingying Zhong
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
- Institute of Materials Research and Engineering, Agency for Science Technology and Research (A*STAR), 138634 Singapore
| | - Xin Ting Zheng
- Institute of Materials Research and Engineering, Agency for Science Technology and Research (A*STAR), 138634 Singapore
| | - Suqing Zhao
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Xiaodi Su
- Institute of Materials Research and Engineering, Agency for Science Technology and Research (A*STAR), 138634 Singapore
- Department of Chemistry, National University of Singapore, Block S8, Level 3, 3 Science Drive 3, 117543 Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering, Agency for Science Technology and Research (A*STAR), 138634 Singapore
| |
Collapse
|
13
|
Zhou R, Cui DJ, Zhao Q, Liu KK, Zhao WB, Liu Q, Ma RN, Jiao Z, Dong L, Shan CX. Effective control of microbial spoilage in soybeans by water-soluble ZnO nanoparticles. Food Chem 2022; 388:132994. [PMID: 35460964 DOI: 10.1016/j.foodchem.2022.132994] [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: 08/28/2021] [Revised: 04/01/2022] [Accepted: 04/13/2022] [Indexed: 11/17/2022]
Abstract
The microbial spoilage of soybeans during soaking process severely deteriorates the quality of soybean products and threatens human health. Herein, water-soluble aminated zinc oxide nanoparticles (ZnO NPs) were developed to effectively control the microbial spoilage in soybeans during soaking. ZnO NPs achieved significant inactivation of three dominant spoilage bacteria (bacillus cereus, bacillus megaterium and enterococcus faecium) isolated from the deteriorated soybeans, which could adhere to the bacterial surface and damage the cell wall/membrane, but also generate large amounts of reactive oxygen species (ROS). Compared to two commercial ZnO, water-soluble ZnO exhibited superior antibacterial properties due to producing more ROS and bacteria-adhered ability. After ZnO NPs treatment, the content of the residual Zn (51.1 mg/kg) in soybeans was the safety standards of Zn element in soybeans products for human). Therefore, the water-soluble ZnO NPs showed great potentials as efficient and safe antimicrobial agents for soybeans preservation during soaking process.
Collapse
Affiliation(s)
- Rui Zhou
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Dong-Jie Cui
- Henan Key Laboratory of Ion-Beam Bioengineering, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Qi Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
| | - Kai-Kai Liu
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Wen-Bo Zhao
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Qian Liu
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Ruo-Nan Ma
- Henan Key Laboratory of Ion-Beam Bioengineering, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| | - Zhen Jiao
- Henan Key Laboratory of Ion-Beam Bioengineering, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Lin Dong
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Chong-Xin Shan
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
| |
Collapse
|
14
|
Ning X, He G, Zeng W, Xia Y. The photosensitizer-based therapies enhance the repairing of skin wounds. Front Med (Lausanne) 2022; 9:915548. [PMID: 36035433 PMCID: PMC9403269 DOI: 10.3389/fmed.2022.915548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 07/26/2022] [Indexed: 11/29/2022] Open
Abstract
Wound repair remains a clinical challenge and bacterial infection is a common complication that may significantly delay healing. Therefore, proper and effective wound management is essential. The photosensitizer-based therapies mainly stimulate the photosensitizer to generate reactive oxygen species through appropriate excitation source irradiation, thereby killing pathogenic microorganisms. Moreover, they initiate local immune responses by inducing the recruitment of immune cells as well as the production of proinflammatory cytokines. In addition, these therapies can stimulate the proliferation, migration and differentiation of skin resident cells, and improve the deposition of extracellular matrix; subsequently, they promote the re-epithelialization, angiogenesis, and tissue remodeling. Studies in multiple animal models and human skin wounds have proved that the superior sterilization property and biological effects of photosensitizer-based therapies during different stages of wound repair. In this review, we summarize the recent advances in photosensitizer-based therapies for enhancing tissue regeneration, and suggest more effective therapeutics for patients with skin wounds.
Collapse
Affiliation(s)
- Xiaoying Ning
- Department of Dermatology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Gang He
- State Key Laboratory for Strength and Vibration of Mechanical Structures, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, China
- Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, China
| | - Weihui Zeng
- Department of Dermatology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Yumin Xia
- Department of Dermatology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Yumin Xia,
| |
Collapse
|
15
|
Wang G, Yang C, Shan M, Jia H, Zhang S, Chen X, Liu W, Liu X, Chen J, Wang X. Synergistic Poly(lactic acid) Antibacterial Surface Combining Superhydrophobicity for Antiadhesion and Chlorophyll for Photodynamic Therapy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8987-8998. [PMID: 35839422 DOI: 10.1021/acs.langmuir.2c01377] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The problem of nosocomial infections caused by bacterial growth on material surfaces is an urgent threat to public health. Although numerous materials and methods have been explored to fight against infections, the methods are complicated and the materials are slightly toxic. It is highly desirable to develop an antibacterial strategy that kills bacteria effectively without drug resistance and cytotoxicity. Herein, we present a synergistic antibacterial polylactic acid (PLA) surface with superhydrophobic antibacterial adhesion and photodynamic bactericidal activity. Initially, the surface displayed low-adhesion superhydrophobicity and resisted most bacterial adhesion. Furthermore, completely non-toxic chlorophyll possessed excellent photodynamic bactericidal properties under non-toxic visible light, which was incorporated into micro-/nanoscale PLA surfaces. We achieved efficient antibacterial activity using completely non-toxic materials and a facile non-solvent-induced phase separation process. This non-toxic, simple, good biocompatible, and no drug-resistant strategy has great advantages in combating bacterial infections.
Collapse
Affiliation(s)
- Gege Wang
- School of Materials Science and Engineering, the Key Laboratory of Material Processing and Mold of Ministry of Education, Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou 450001, China
| | - Cao Yang
- School of Materials Science and Engineering, the Key Laboratory of Material Processing and Mold of Ministry of Education, Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou 450001, China
| | - Mengyao Shan
- School of Materials Science and Engineering, the Key Laboratory of Material Processing and Mold of Ministry of Education, Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou 450001, China
| | - Hanyu Jia
- School of Materials Science and Engineering, the Key Laboratory of Material Processing and Mold of Ministry of Education, Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou 450001, China
| | - Shike Zhang
- School of Materials Science and Engineering, the Key Laboratory of Material Processing and Mold of Ministry of Education, Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou 450001, China
| | - Xin Chen
- College of Food Science and Engineering, National Engineering Laboratory for Wheat & Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
| | - Wentao Liu
- School of Materials Science and Engineering, the Key Laboratory of Material Processing and Mold of Ministry of Education, Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou 450001, China
| | - Xuying Liu
- School of Materials Science and Engineering, the Key Laboratory of Material Processing and Mold of Ministry of Education, Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou 450001, China
| | - Jinzhou Chen
- School of Materials Science and Engineering, the Key Laboratory of Material Processing and Mold of Ministry of Education, Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou 450001, China
| | - Xianghong Wang
- School of Materials Science and Engineering, the Key Laboratory of Material Processing and Mold of Ministry of Education, Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou 450001, China
| |
Collapse
|
16
|
Wu S, Yang Y, Wang S, Dong C, Zhang X, Zhang R, Yang L. Dextran and peptide-based pH-sensitive hydrogel boosts healing process in multidrug-resistant bacteria-infected wounds. Carbohydr Polym 2022; 278:118994. [PMID: 34973798 DOI: 10.1016/j.carbpol.2021.118994] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 12/01/2021] [Accepted: 12/05/2021] [Indexed: 02/08/2023]
Abstract
Traumatic multidrug-resistant (MDR) bacterial infections are deadly threat to the public. To combat MDR bacteria, we developed a dual functional pH-sensitive hydrogel based on peptide DP7 (VQWRIRVAVIRK) and oxidized dextran (DP7-ODEX hydrogel). As an antimicrobial peptide, DP7 can synergize with many antibiotics; thus, we loaded ceftazidime into DP7-ODEX hydrogel, which showed an obvious advantage in MDR P. aeruginosa inhibition. Additionally, due to the interaction between aldehyde groups in oxidized dextran and amine groups from wound tissue, the hydrogel could extend on the irregular surface of skin defects and promote epithelial cells adhesion. DP7 could also be used as a wound-healing peptide and accelerate the healing process. We confirmed that the DP7-ODEX hydrogel exerted formidable therapeutic effects in normal or diabetic wound infection model. According to histomorphology analysis we found that DP7 hydrogel also have a scarless wound healing ability. In summary, we developed a hydrogel fabricated by the dual functional peptide DP7 that can kill multidrug-resistant bacteria colonizing the wound bed and boost scarless wound healing.
Collapse
Affiliation(s)
- Siwen Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu 610041, PR China
| | - Yuling Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu 610041, PR China
| | - Shihan Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu 610041, PR China
| | - Chunyan Dong
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu 610041, PR China
| | - Xueyan Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu 610041, PR China
| | - Rui Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu 610041, PR China
| | - Li Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu 610041, PR China.
| |
Collapse
|
17
|
Liang Y, Liang Y, Zhang H, Guo B. Antibacterial biomaterials for skin wound dressing. Asian J Pharm Sci 2022; 17:353-384. [PMID: 35782328 PMCID: PMC9237601 DOI: 10.1016/j.ajps.2022.01.001] [Citation(s) in RCA: 144] [Impact Index Per Article: 72.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 01/05/2022] [Accepted: 01/14/2022] [Indexed: 02/07/2023] Open
Abstract
Bacterial infection and the ever-increasing bacterial resistance have imposed severe threat to human health. And bacterial contamination could significantly menace the wound healing process. Considering the sophisticated wound healing process, novel strategies for skin tissue engineering are focused on the integration of bioactive ingredients, antibacterial agents included, into biomaterials with different morphologies to improve cell behaviors and promote wound healing. However, a comprehensive review on anti-bacterial wound dressing to enhance wound healing has not been reported. In this review, various antibacterial biomaterials as wound dressings will be discussed. Different kinds of antibacterial agents, including antibiotics, nanoparticles (metal and metallic oxides, light-induced antibacterial agents), cationic organic agents, and others, and their recent advances are summarized. Biomaterial selection and fabrication of biomaterials with different structures and forms, including films, hydrogel, electrospun nanofibers, sponge, foam and three-dimension (3D) printed scaffold for skin regeneration, are elaborated discussed. Current challenges and the future perspectives are presented in this multidisciplinary field. We envision that this review will provide a general insight to the elegant design and further refinement of wound dressing.
Collapse
Affiliation(s)
- Yuqing Liang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710049, China
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Yongping Liang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710049, China
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Hualei Zhang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710049, China
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Baolin Guo
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710049, China
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
- Corresponding author.
| |
Collapse
|
18
|
Liang X, Xia L, Zhu Y, Zhang C, Gong F, Zhang W. An acid-triggered BODIPY-based photosensitizer for enhanced photodynamic antibacterial efficacy. Biomater Sci 2022; 10:4235-4242. [DOI: 10.1039/d2bm00780k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An acid-triggered photodynamic antibacterial nanoplatform (IBPAAs) was constructed by co-assembly of an acid-triggered photosensitizer BODIPY (I-NBDP) and the POEGMA-b-PDEAEMA block copolymer for enhancing the antibacterial efficacy.
Collapse
Affiliation(s)
- Xuning Liang
- Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Meilong Road No. 130, Shanghai 200237, PR China
| | - Lei Xia
- Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Meilong Road No. 130, Shanghai 200237, PR China
| | - Yucheng Zhu
- Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Meilong Road No. 130, Shanghai 200237, PR China
| | - Chen Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Meilong Road No. 130, Shanghai 200237, PR China
| | - Feirong Gong
- Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Meilong Road No. 130, Shanghai 200237, PR China
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Meilong Road No. 130, Shanghai 200237, PR China
| |
Collapse
|
19
|
Dai X, Zhang B, Yu Q, Liu Y. Multicharged Supramolecular Assembly Mediated by Polycationic Cyclodextrin for Efficiently Photodynamic Antibacteria. ACS APPLIED BIO MATERIALS 2021; 4:8536-8542. [PMID: 35005946 DOI: 10.1021/acsabm.1c01018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Supramolecular antimicrobial materials based on synthetic macrocycles have recently aroused enormous interests due to their controllable and effective antibacterial treatment. Herein, a multicharged supramolecular assembly was fabricated employing the moderate host-guest interaction between hexa-adamantane-appended ruthenium polypyridyl (Ru2) and polycationic cyclodextrin (CD-QAS) in water. The positively multicharged feature of supramolecular assembly could remarkably enhance the specific intercalation and accumulation in negatively charged bacteria membrane leading to the physical membrane damage. Subsequently, the assembly could efficiently initiate the significant generation of singlet oxygen (1O2) in situ when irradiated with white light thus exhibiting a highly efficient antibacterial capability. Significantly, antibacterial experiments indicated that Ru2/CD-QAS displayed less effect on suppressing the growth of E. coli only about 25% in the absence of light while they exhibited excellent killing efficiency more than 99% toward E. coli under light irradiation. This work provides a simple approach for constructing supramolecular antimicrobial materials for synergistic photodynamic antibacteria.
Collapse
Affiliation(s)
- Xianyin Dai
- Department College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Bing Zhang
- Department College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Qilin Yu
- Key Laboratory of Molecular Microbiology and Technology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yu Liu
- Department College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
20
|
Lai Z, Jian Q, Li G, Shao C, Zhu Y, Yuan X, Chen H, Shan A. Self-Assembling Peptide Dendron Nanoparticles with High Stability and a Multimodal Antimicrobial Mechanism of Action. ACS NANO 2021; 15:15824-15840. [PMID: 34549935 DOI: 10.1021/acsnano.1c03301] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Self-assembling nanometer-scale structured peptide polymers and peptide dendrimers have shown promise in biomedical applications due to their versatile properties and easy availability. Herein, self-assembling peptide dendron nanoparticles (SPDNs) with potent antimicrobial activity against a range of bacteria were developed based on the nanoscale self-assembly of an arginine-proline repeat branched peptide dendron bearing a hexadecanoic acid chain. The SPDNs are biocompatible, and our most active peptide dendron nanoparticle, C16-3RP, was found to have negligible toxicity after both in vitro and in vivo studies. Furthermore, the C16-3RP nanoparticles showed excellent stability under physiological concentrations of salt ions and against serum and protease degradation, resulting in highly effective treatment in a mouse acute peritonitis model. Comprehensive analyses using a series of biofluorescence, microscopy, and transcriptome sequencing techniques revealed that C16-3RP nanoparticles kill Gram-negative bacteria by increasing bacterial membrane permeability, inducing cytoplasmic membrane depolarization and drastic membrane disruption, inhibiting ribosome biogenesis, and influencing energy generation and other processes. Collectively, C16-3RP nanoparticles show promising biocompatibility and in vivo therapeutic efficacy without apparent resistance development. These advancements may facilitate the development of peptide-based antibiotics in clinical settings.
Collapse
Affiliation(s)
- Zhenheng Lai
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Qiao Jian
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Guoyu Li
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Changxuan Shao
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Yongjie Zhu
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Xiaojie Yuan
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Hongyu Chen
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Anshan Shan
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, People's Republic of China
| |
Collapse
|
21
|
Yin C, Wang Z, Ding X, Chen X, Wang J, Yang E, Wang W, Martin LL, Sun D. Crystalline ruthenium polypyridine nanoparticles: a targeted treatment of bacterial infection with multifunctional antibacterial, adhesion and surface-anchoring photosensitizer properties. J Mater Chem B 2021; 9:3808-3825. [PMID: 33979422 DOI: 10.1039/d1tb00103e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photodynamic antibacterial therapy employs nanocomposites as an alternative to traditional antibiotics for the treatment of bacterial infections. However, many of these antibacterial materials are less effective towards bacteria than traditional drugs, either due to poor specificity or antibacterial activity. This can result in needless and excessive drug use in treatments. This paper describes a multifunctional drug delivery nanoparticle (MDD-NP), Sph-Ru-MMT@PZ, based on the nanostructured-form of [Ru(bpy)2dppz] (PF6)2 (Sph-Ru), which has adhesive properties towards its microbial targets as well as surface-anchoring photosensitizer effects. The design and construction of MDD-NP is based on the adhesive properties of the outer layers of montmorillonite (MMT), which allows Sph-Ru-MMT@PZ to successfully reach its bacterial target; the outer layer of the E. coli. In addition, under 670 nm red irradiation therapy (R-IT), the surface-anchoring properties use the photosensitizer phthalocyanine zinc (PZ) to destroy the bacteria by producing reactive oxygen species (ROS) which causes cell lysis of E. coli. More importantly, Sph-Ru-MMT@PZ has no fluorescence response to live E. coli with intact cell membranes but selectively stained and demonstrated fluorescence during membrane damage of early-stage cells as well as exposure of nuclear materials at late-stage of cell lysis. Sph-Ru-MMT@PZ showed beneficial and synergistic anti-infective effects in vivo by inhibiting the E. coli infection-induced inflammatory response and eventually promoting wound healing in mice. This new strategy for high precision antibacterial therapy towards specific targets, provides an exciting opportunity for the application of multifunctional nanocomposites towards microbial infections.
Collapse
Affiliation(s)
- Chenyang Yin
- School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China.
| | - Zekun Wang
- School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China.
| | - Xiaoyuan Ding
- School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China.
| | - Xiaoqing Chen
- School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China.
| | - Jingyuan Wang
- School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China.
| | - Endong Yang
- School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China.
| | - Weiyun Wang
- School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China.
| | - Lisandra L Martin
- School of Chemistry, Monash University, Clayton 3800, Victoria, Australia.
| | - Dongdong Sun
- School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China.
| |
Collapse
|
22
|
Yu C, Gao Y, Zhang Y, Wang J, Zhang Y, Li J, Zhang X, Wu Z, Zhang X. A Targeted Photosensitizer Mediated by Visible Light for Efficient Therapy of Bacterial Keratitis. Biomacromolecules 2021; 22:3704-3717. [PMID: 34380309 DOI: 10.1021/acs.biomac.1c00461] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Bacterial keratitis is a serious bacterial infection of the cornea that can cause sight loss in severe cases because of the sharp decline of efficacious antibiotics. Herein, a targeted photosensitizer based on BODIPY severing as a photobactericidal agent was developed for treating bacterial keratitis. The water solubility of the material was as high as 10 mg/mL, which was attributable to the introduction of pathogen-targeting galactose and fucose. The photosensitizer was able to preferentially bind Pseudomonas aeruginosa instead of mammalian cells and trigger the aggregation of bacteria, which ultimately facilitated effective pathogen ablation upon the generation of reactive oxygen species (ROS) via laser irradiation. Photoexcited targeted photosensitizers can promote wound healing by eradicating P. aeruginosa in rat eyes and reducing the inflammatory response, thus exhibiting the significant therapeutic effect on bacterial keratitis. We also performed molecular level mechanistic studies using the unique field-induced droplet ionization mass spectrometry methodology and confirmed that the generated ROS were mainly singlet oxygen that caused lipid peroxidation (Type II mechanism). We anticipate that the targeted photosensitizer will have great potential in the application of clinical photodynamic therapy to ocular infection.
Collapse
Affiliation(s)
- Cong Yu
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yingchao Gao
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yanlong Zhang
- Tianjin Key Laboratory of Biomedical Detection Techniques & Instruments, State Key Laboratory of Precision Measurement Technology and Instrument, School of Precision Instruments & Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Jie Wang
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yufei Zhang
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jie Li
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xinxing Zhang
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhongming Wu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Xinge Zhang
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
23
|
Zhu J, Tian J, Yang C, Chen J, Wu L, Fan M, Cai X. L-Arg-Rich Amphiphilic Dendritic Peptide as a Versatile NO Donor for NO/Photodynamic Synergistic Treatment of Bacterial Infections and Promoting Wound Healing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2101495. [PMID: 34213822 DOI: 10.1002/smll.202101495] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/13/2021] [Indexed: 06/13/2023]
Abstract
The development of alternative strategies for the efficient treatment of subcutaneous abscesses that do not require the massive use of antibiotics and surgical intervention is urgently needed. Herein, a novel synergistic antibacterial strategy based on photodynamic (PDT) and NO gas therapy is reported, in which, a PDT-driven NO controllable generation system (Ce6@Arg-ADP) is developed with l-Arg-rich amphiphilic dendritic peptide (Arg-ADP) as a carrier. This carrier not only displays superior bacterial association and biofilm penetration performance, but also acts as a versatile NO donor. Following efficient penetration into the interior of the biofilms, Ce6@Arg-ADP can rapidly produce massive NO via utilizing the H2 O2 generated during PDT to oxidize Arg-ADP to NO and l-citrulline, without affecting singlet oxygen (1 O2 ) production. The combination of 1 O2 and the reactive by-products of NO offers notable synergistic antibacterial and biofilm eradication effects. Importantly, following efficient elimination of all bacteria from the abscess site, Arg-ADP can further generate trace quantities of NO to facilitate the angiogenesis and epithelialization of the wound tissues, thereby notably promotes wound healing. Together, this study clearly suggests that Arg-ADP is a versatile NO donor, and the combination of PDT and NO represents a promising strategy for the efficient treatment of subcutaneous abscesses.
Collapse
Affiliation(s)
- Jingwu Zhu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Jiang Tian
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Chao Yang
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Junpeng Chen
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Lihuang Wu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Mengni Fan
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Xiaojun Cai
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, P. R. China
| |
Collapse
|
24
|
Guo H, Guo Q, Lan T, Luo Y, Pan X, Yao Y, Li Y, Feng Y, Liu Y, Tao L, Shen X. Amphiphilic block versus random copolymer nanoparticles with reactive oxygen species responsiveness as berberine vehicles. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 32:1657-1677. [PMID: 34024257 DOI: 10.1080/09205063.2021.1932356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A series of amphiphilic block and random copolymers based on phenylboronic acid pinacol ester were synthesized via reversible addition-fragmentation chain transfer polymerization. The obtained copolymers can self-assemble in aqueous solution into stable block copolymer nanoparticles and random nanoparticles with sizes of 116.1-158.6 and 126.3-187.0 nm, respectively. All nanoparticles showed hydrogen peroxide (H2O2) sensitivity, and the random copolymer nanoparticles presented faster responsiveness to H2O2 than did those derived from block copolymers. Berberine (BBR) can be effectively encapsulated into block and random copolymer nanoparticles with loading capacity of 7.6%-9.1% and 7.3%-8.9%, respectively. The BBR release can be controlled in an H2O2 medium. For the random copolymer nanoparticles, the release rate of BBR was faster and the cumulative release amounts in response to H2O2 were higher over 48 h. The BBR cumulative release amount in the H2O2 medium for the block and random copolymer nanoparticles was 62.2%-70.2% and 68.6%-80.4%, respectively. Moreover, good biocompatibility was observed for the BBR-loaded block and random copolymer nanoparticles. BBR and BBR-loaded nanoparticles can improve Glut4 translocation to the cell membrane and promote glucose transport into cells. BBR-loaded nanoparticles can decrease the blood glucose levels in diabetic rats over 15 days. These results imply that the different chain formulation of block and random copolymers affects the H2O2 responsiveness and that the two kinds of nanoparticles exhibit potential application as novel vehicles for BBR delivery to regulate blood glucose levels.
Collapse
Affiliation(s)
- Honglei Guo
- Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University (Jiangsu Province Hospital), Nanjing, Jiangsu, China
| | - Qianqian Guo
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Tianyu Lan
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, Guizhou, China
| | - Yongjun Luo
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Xiuhao Pan
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yifang Yao
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yafei Li
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Ya Feng
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yujia Liu
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Ling Tao
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| | - Xiangchun Shen
- The State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, Guizhou, China
| |
Collapse
|
25
|
Borjihan Q, Dong A. Design of nanoengineered antibacterial polymers for biomedical applications. Biomater Sci 2021; 8:6867-6882. [PMID: 32756731 DOI: 10.1039/d0bm00788a] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Pathogenic bacteria have become global threats to public health. Since the advent of antibiotics about 100 years ago, their use has been embraced with great enthusiasm because of their effective treatment of bacterial infections. However, the evolution of pathogenic bacteria with resistance to conventional antibiotics has resulted in an urgent need for the development of a new generation of antibiotics. The use of antimicrobial polymers offers the promise of enhancing the efficacy of antimicrobial agents. Of the various antibacterial polymers that effectively eradicate pathogenic bacteria, those that are nanoengineered have garnered significant research interest in their design and biomedical applications. Because of their high surface area and high reactivity, these polymers show greater antibacterial activity than conventional antibacterial agents, by inhibiting the growth or destroying the cell membrane of pathogenic bacteria. This review summarizes several strategies for designing nanoengineered antibacterial polymers, explores the factors that affect their antibacterial properties, and examines key features of their design. It then comments briefly on the future prospects for nanoengineered antibacterial polymers. This review thus provides a feasible guide to developing nanoengineered antibacterial polymers by presenting both broad and in-depth bench research, and it offers suggestions for their potential in biomedical applications.
Collapse
Affiliation(s)
- Qinggele Borjihan
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China.
| | | |
Collapse
|
26
|
Martin J, Desfoux A, Martinez J, Amblard M, Mehdi A, Vezenkov L, Subra G. Bottom-up strategies for the synthesis of peptide-based polymers. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
27
|
Direct interactions between cationic liposomes and bacterial cells ameliorate the systemic treatment of invasive multidrug-resistant Staphylococcus aureus infections. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2021; 34:102382. [PMID: 33771706 DOI: 10.1016/j.nano.2021.102382] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 01/14/2021] [Accepted: 03/03/2021] [Indexed: 12/19/2022]
Abstract
Invasive infections caused by antibiotic-resistant Staphylococcus aureus have posed a great threat to human health. To tackle this problem, a cationic liposomal Curcumin (C-LS/Cur) was developed and its effect against antibiotic-resistant S. aureus was investigated in this study. As expected, C-LS/Cur exhibited greater bactericidal capacity compared with its counterparts, probably because the negatively charged S. aureus favors electrostatic interactions rather than intercalation with cationic liposomal vesicles at the beginning of endocytic process, thereby effectively delivering Cur to its targets. We confirmed this hypothesis by monitoring zeta potential variation, collecting visual evidences through CLSM, FCM and TEM, and determining binding kinetics by BLI. Moreover, an excellent therapeutic efficacy of C-LS/Cur against invasive murine infection was also observed, which was due to the enhanced accumulation and retention in the targets. Therefore, cationic liposomes have great potential for the clinical application in the treatment of invasive antibiotic-resistant S. aureus infections.
Collapse
|
28
|
Zhou L, Zheng H, Liu Z, Wang S, Liu Z, Chen F, Zhang H, Kong J, Zhou F, Zhang Q. Conductive Antibacterial Hemostatic Multifunctional Scaffolds Based on Ti 3C 2T x MXene Nanosheets for Promoting Multidrug-Resistant Bacteria-Infected Wound Healing. ACS NANO 2021; 15:2468-2480. [PMID: 33565857 DOI: 10.1021/acsnano.0c06287] [Citation(s) in RCA: 129] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Chronic bacterial-infected wound healing/skin regeneration remains a challenge due to drug resistance and the poor quality of wound repair. The ideal strategy is combating bacterial infection, while facilitating satisfactory wound healing. However, the reported strategy hardly achieves these two goals simultaneously without the help of antibiotics or bioactive molecules. In this work, a two-dimensional (2D) Ti3C2Tx MXene with excellent conductivity, biocompatibility, and antibacterial ability was applied in developing multifunctional scaffolds (HPEM) for methicillin-resistant Staphylococcus aureus (MRSA)-infected wound healing. HPEM scaffolds were fabricated by the reaction between the poly(glycerol-ethylenimine), Ti3C2Tx MXene@polydopamine (MXene@PDA) nanosheets, and oxidized hyaluronic acid (HCHO). HPEM scaffolds presented multifunctional properties containing self-healing behavior, electrical conductivity, tissue-adhesive feature, antibacterial activity especially for MRSA resistant to many commonly used antibiotics (antibacterial efficiency was 99.03%), and rapid hemostatic capability. HPEM scaffolds enhanced the proliferation of normal skin cells with negligible toxicity. Additionally, HPEM scaffolds obviously accelerated the MRSA-infected wound healing (wound closure ratio was 96.31%) by efficient anti-inflammation effects, promoting cell proliferation, and the angiogenic process, stimulating granulation tissue formation, collagen deposition, vascular endothelial differentiation, and angiogenesis. This study indicates the important role of multifunctional 2D MXene@PDA nanosheets in infected wound healing. HPEM scaffolds with multifunctional properties provide a potential strategy for MRSA-infected wound healing/skin regeneration.
Collapse
Affiliation(s)
- Li Zhou
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
- Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
- State Key Laboratory of Military Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Hua Zheng
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Zongxu Liu
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Shenqiang Wang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Zhao Liu
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Fang Chen
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Hepeng Zhang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
- Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
| | - Jie Kong
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Fengtao Zhou
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Qiuyu Zhang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
- Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
- Xi'an Key Laboratory of Functional Organic Porous Materials, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| |
Collapse
|
29
|
Xu Z, Zhang C, Wang X, Liu D. Release Strategies of Silver Ions from Materials for Bacterial Killing. ACS APPLIED BIO MATERIALS 2021; 4:3985-3999. [DOI: 10.1021/acsabm.0c01485] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zhiwen Xu
- State Key Laboratory of Medicinal Chemical Biology, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Cai Zhang
- State Key Laboratory of Medicinal Chemical Biology, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiang Wang
- State Key Laboratory of Medicinal Chemical Biology, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Dingbin Liu
- State Key Laboratory of Medicinal Chemical Biology, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
30
|
An acid-triggered porphyrin-based block copolymer for enhanced photodynamic antibacterial efficacy. Sci China Chem 2021. [DOI: 10.1007/s11426-020-9904-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
31
|
Wu Y, Deng G, Jiang K, Wang H, Song Z, Han H. Photothermally triggered nitric oxide nanogenerator targeting type IV pili for precise therapy of bacterial infections. Biomaterials 2020; 268:120588. [PMID: 33307370 DOI: 10.1016/j.biomaterials.2020.120588] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/27/2020] [Accepted: 11/27/2020] [Indexed: 12/24/2022]
Abstract
Nitric oxide (NO) is an important biological messenger involved in the treatment of bacterial infections, but its controlled and targeted release in bacterial infections remains a major challenge. Herein, an intelligent NO nanogenerator triggered by near-infrared (NIR) light is constructed for targeted treatment of P. aeruginosa bacterial infection. Since maleimide can recognize and attach to the pilus of T4P of P. aeruginosa, we adopt this strategy to achieve the accurate release of therapeutic drugs at the infection site, i.e., after maleimide targets Gram-negative bacteria, the SNP@MOF@Au-Mal nanogenerator will release NO and generate ROS in situ from the inorganic photosensitizer gold nanoparticles under NIR irradiation to achieve synergistic antibacterial effect. In vivo experiments proved that the bacterial burden on the wound was reduced by 97.7%. Additionally, the nanogenerator was shown to promote the secretion of growth factors, which play a key role in regulating inflammation and inducing angiogenesis. This strategy has the advantage of generating a high concentration of NO in situ to promote the transfer of more NO and its derivatives (N2O3, ONOO-) to bacteria, thereby significantly improving the antibacterial effect. The multifunctional antibacterial platform has been demonstrated as a good carrier for gas therapy because of its simple and efficient gas release performance, indicating its great potential for the treatment of drug-resistant bacterial infections.
Collapse
Affiliation(s)
- Yang Wu
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Guiyun Deng
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Kai Jiang
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Huajuan Wang
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhiyong Song
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Heyou Han
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China; State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China; State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| |
Collapse
|
32
|
Chen L, Shen T, Liu Y, Zhou J, Shi S, Wang Y, Zhao Z, Yan Z, Liao C, Wang C. Enhancing the antibacterial activity of antimicrobial peptide PMAP-37(F34-R) by cholesterol modification. BMC Vet Res 2020; 16:419. [PMID: 33138816 PMCID: PMC7607875 DOI: 10.1186/s12917-020-02630-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 10/20/2020] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND The problem of increasing resistance against conventional antibiotics has drawn people's attention. Therefore, the development of novel antibacterial agents with effective and safe therapeutic effects is imminent. Antimicrobial peptides (AMPs) are considered a promising class of antibacterial agents due to their broad antibacterial spectrum. RESULTS In this study, on the basis of our previously studied peptide PMAP-37(F34-R), a novel antimicrobial peptide Chol-37(F34-R) was developed by N-terminal cholesterol modification to increase hydrophobicity. We observed that the N-terminal cholesterol-modified Chol-37(F34-R) showed higher antimicrobial activity than PMAP-37(F34-R) in vitro. Chol-37(F34-R) also exhibited effective anti-biofilm activity and may kill bacteria by improving the permeability of their membranes. Chol-37(F34-R) exerted high stability in different pH, salt, serum, and boiling water environments. Chol-37(F34-R) also showed no hemolytic activity and substantially low toxicity. Furthermore, Chol-37(F34-R) exhibited good potency of bacteria eradication and promoted wound healing and abscess reduction in infected mice. Meanwhile, in S. aureus ATCC25923-infected peritonitis model, Chol-37(F34-R) exhibited an impressive therapeutic effect by reducing the decrease in systemic bacterial burden and alleviating organ damage. CONCLUSIONS Our findings suggested that the N-terminal cholesterol modification of PMAP-37(F34-R) could improve antibacterial activity. Chol-37(F34-R) displayed excellent bactericidal efficacy and impressive therapeutic effect in vivo. Thus, Chol-37(F34-R) may be a candidate for antimicrobial agents against microbial infection in the clinic.
Collapse
Affiliation(s)
- Liangliang Chen
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan, China
| | - Tengfei Shen
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan, China
| | - Yongqing Liu
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan, China
| | - Jiangfei Zhou
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan, China
| | - Shuaibing Shi
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan, China
| | - Yang Wang
- Henan Provincial Open Laboratory of Key Disciplines in Environmental and Animal Products Safety, Henan University of Science and Technology, Luoyang, Henan, China
| | - Zhanqin Zhao
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan, China.,Henan Provincial Open Laboratory of Key Disciplines in Environmental and Animal Products Safety, Henan University of Science and Technology, Luoyang, Henan, China
| | - Zhiling Yan
- Jiaozuo Center for Animal Disease Prevention and Control, Jiaozuo, Henan, China
| | - Chengshui Liao
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan, China. .,Henan Provincial Open Laboratory of Key Disciplines in Environmental and Animal Products Safety, Henan University of Science and Technology, Luoyang, Henan, China.
| | - Chen Wang
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan, China. .,Henan Provincial Open Laboratory of Key Disciplines in Environmental and Animal Products Safety, Henan University of Science and Technology, Luoyang, Henan, China.
| |
Collapse
|
33
|
Shen T, Chen L, Liu Y, Shi S, Liu Z, Cai K, Liao C, Wang C. Decanoic acid modification enhances the antibacterial activity of PMAP-23RI-Dec. Eur J Pharm Sci 2020; 157:105609. [PMID: 33141035 DOI: 10.1016/j.ejps.2020.105609] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/26/2020] [Accepted: 10/19/2020] [Indexed: 01/12/2023]
Abstract
Antimicrobial peptides are a new type of antibacterial drugs with a broad antibacterial spectrum. Based on our previous research, PMAP-23RI-Dec was designed by modifying the C-terminal of PMAP-23RI with decanoic acid. In this study, we measured the antibacterial activity, stability, hemolysis, and cytotoxicity of PMAP-23RI-Dec. The mechanism of PMAP-23RI-Dec on biofilm and cell membranes were also studied. The results show that PMAP-23RI-Dec exhibited high antibacterial activity and stability, but the hemolytic activity and cytotoxicity of PMAP-23RI-Dec were not enhanced. Moreover, PMAP-23RI-Dec could inhibit biofilm formation at low concentrations, and enhance the killing effect on bacteria by changing the permeability of their cell membranes. Finally, PMAP-23RI-Dec reduced Pseudomonas aeruginosa GIM1.551 and Staphylococcus aureus ATCC25923 damage to organs, and showed superior efficacy against peritonitis. PMAP-23RI-Dec also reduced the scope of abscess and alleviated wound infections. Our research indicated that PMAP-23RI-Dec is a new antibacterial agent with potential clinical application.
Collapse
Affiliation(s)
- Tengfei Shen
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan 471000, China
| | - Liangliang Chen
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan 471000, China
| | - Yongqing Liu
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan 471000, China
| | - Shuaibing Shi
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan 471000, China
| | - Zhixin Liu
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan 471000, China
| | - Kairui Cai
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan 471000, China
| | - Chengshui Liao
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan 471000, China; Henan Provincial Open Laboratory of Key Disciplines in Environmental and Animal Products Safety, Henan University of Science and Technology, Luoyang, Henan 471000, China.
| | - Chen Wang
- The Key Lab of Veterinary Biological Products, Henan University of Science and Technology, Luoyang, Henan 471000, China; Henan Provincial Open Laboratory of Key Disciplines in Environmental and Animal Products Safety, Henan University of Science and Technology, Luoyang, Henan 471000, China.
| |
Collapse
|
34
|
Tamil Selvan S, Padmanabhan P, Zoltán Gulyás B. Nanotechnology-Based Diagnostics and Therapy for Pathogen-Related Infections in the CNS. ACS Chem Neurosci 2020; 11:2371-2377. [PMID: 31726008 DOI: 10.1021/acschemneuro.9b00470] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The central nervous system (CNS) encompasses the brain, spinal cord, and nerves, where both brain and spinal cord are safeguarded by the meninges. However, serious bacterial, viral, or fungal infection in the brain causes life-threatening diseases such as meningitis. Engineered nanostructures hold great promise for not only in the diagnosis but also for combating microbial drug resistance owing to their high surface area and innate antibacterial activity. We delineate several nanoparticle-based approaches to enhance the CNS delivery of drugs across the blood-brain barrier (BBB). While pathogens invade the CNS by phagocytosis or receptor (e.g., EphA2)-mediated transcytosis, most of the nanoparticles cross the BBB via receptor-mediated transcytosis (e.g., antibody, peptide, protein). We also provide our perspectives on the diagnostic pathways based on nanotechnology for the detection of pathogens in the brain, thereby opening up new therapeutic avenues.
Collapse
Affiliation(s)
- Subramanian Tamil Selvan
- Translational Neuroscience Laboratory, Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921
| | - Parasuraman Padmanabhan
- Translational Neuroscience Laboratory, Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921
| | - Balázs Zoltán Gulyás
- Translational Neuroscience Laboratory, Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921
| |
Collapse
|
35
|
Hu D, Zou L, Gao Y, Jin Q, Ji J. Emerging nanobiomaterials against bacterial infections in postantibiotic era. VIEW 2020. [DOI: 10.1002/viw.20200014] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Dengfeng Hu
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Lingyun Zou
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Yifan Gao
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Qiao Jin
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| |
Collapse
|
36
|
Bhattacharyya S, Venkateswarulu M, Sahoo J, Zangrando E, De M, Mukherjee PS. Self-Assembled PtII8 Metallosupramolecular Tubular Cage as Dual Warhead Antibacterial Agent in Water. Inorg Chem 2020; 59:12690-12699. [DOI: 10.1021/acs.inorgchem.0c01777] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Soumalya Bhattacharyya
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Mangili Venkateswarulu
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Jagabandhu Sahoo
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste 34127, Italy
| | - Mrinmoy De
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| |
Collapse
|
37
|
Li Y, Liu Y, Yang D, Jin Q, Wu C, Cui J. Multifunctional molybdenum disulfide-copper nanocomposite that enhances the antibacterial activity, promotes rice growth and induces rice resistance. JOURNAL OF HAZARDOUS MATERIALS 2020; 394:122551. [PMID: 32272326 DOI: 10.1016/j.jhazmat.2020.122551] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 03/11/2020] [Accepted: 03/15/2020] [Indexed: 06/11/2023]
Abstract
Molybdenum disulfide sheets loaded with copper nanoparticles (MoS2-CuNPs) was prepared and its antibacterial activity against phytopathogen Xanthomonas oryzae pv. oryzae (Xoo) was investigated in vitro and in vivo for the first time. In a 2 h co-incubation, MoS2-CuNPs exhibited 19.2 times higher antibacterial activity against Xoo cells than a commercial copper bactericide (Kocide 3000). In the detached leaf experiment, the disease severity decreased from 86.25 % to 7.5 % in the MoS2-CuNPs treated rice leaves. The results further demonstrated that foliar application of MoS2-CuNPs could form a protective film and increase the density of trichome on the surface of rice leaves, finally prevent the infection of Xoo cells. This was probably due to the synergistic effect of MoS2-CuNPs. Additionally, foliar application of MoS2-CuNPs (4-32 μg/mL) increased obviously the content of Mo and chlorophyll (up 30.85 %), and then improved the growth of rice seedlings. Furthermore, the obtained MoS2-CuNPs could activate the activities of the antioxidant enzymes in rice, indicating higher resistance of rice under abiotic/biotic stresses. The multifunctional MoS2-CuNPs with superior antibacterial activity provided a promising alternative to the traditional antibacterial agents and had great potential in plant protection.
Collapse
Affiliation(s)
- Yadong Li
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangzhou 510650, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou 510650, China; Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Yingliang Liu
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Desong Yang
- College of Agriculture, Shihezi University, Shihezi 832000, Xinjiang, China; Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Bintuan, Shihezi University, Shihezi 832000, Xinjiang, China.
| | - Qian Jin
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangzhou 510650, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou 510650, China
| | - Cailan Wu
- College of Agriculture, Shihezi University, Shihezi 832000, Xinjiang, China; Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Bintuan, Shihezi University, Shihezi 832000, Xinjiang, China
| | - Jianghu Cui
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangzhou 510650, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou 510650, China.
| |
Collapse
|
38
|
Yang Y, Tao B, Gong Y, Chen R, Yang W, Lin C, Chen M, Qin L, Jia Y, Cai K. Functionalization of Ti substrate with pH-responsive naringin-ZnO nanoparticles for the reconstruction of large bony after osteosarcoma resection. J Biomed Mater Res A 2020; 108:2190-2205. [PMID: 32363788 DOI: 10.1002/jbm.a.36977] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/23/2020] [Accepted: 04/19/2020] [Indexed: 12/18/2022]
Abstract
After bone tumor resection, the large bony deficits are commonly reconstructed with Ti-based metallic endoprosthesis, which provide immediate stable fixation and allow early ambulation and weight bearing. However, when used in osteosarcoma resection, Ti implant-relative infection and tumor recurrence were recognized as the two critical factors for implantation failure. Hence, in this work, a novel zinc oxide nanoparticle decorating with naringin was prepared and immobilized onto Ti substrate. The drugs delivery profiles proved that in the bacterial infection and Warburg effect of osteosarcoma-induced acidic condition, naringin and Zn2+ can be released easily from the functional Ti substrate. The anti-osteosarcoma and antibacterial assay showed the delivered naringin and Zn2+ can induce a remarkable increase of oxidative stress in bacteria (Escherichia coli and Staphylococcus aureus) and osteosarcoma (Saos-2 cells) by producing reactive oxygen species (ROS). Accumulation of ROS results in damage of bacterial biofilm and bacterial membrane, leading to the leakage of bacterial RNA and DNA. Meanwhile, the increase of ROS induces osteosarcoma cell apoptosis by activating ROS/extracellular signal-regulated kinase signaling pathway. Furthermore, in vitro cellular experiments, including cell viability, alkaline phosphatase activity, collagen secretion, extracellular matrix mineralization level, indicated that the functional Ti substrate exhibited great potential for osteoblasts proliferation and differentiation. Hence, this study provides a simple and promising strategy of developing multifunctional Ti-based implants for the reconstruction of large bony after osteosarcoma resection.
Collapse
Affiliation(s)
- Yulu Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Bailong Tao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Yi Gong
- Department of Hematology-Oncology, Chongqing Cancer Institute/Hospital, Chongqing, China
| | - Rui Chen
- Department of Pathology, Chongqing Cancer Institute/Hospital, Chongqing, China
| | - Weihu Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Chuanchuan Lin
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Maowen Chen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Lu Qin
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Yile Jia
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.,Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing, China
| |
Collapse
|
39
|
Huang DN, Wang J, Ren KF, Ji J. Functionalized biomaterials to combat biofilms. Biomater Sci 2020; 8:4052-4066. [PMID: 32500875 DOI: 10.1039/d0bm00526f] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Pathogenic microbial biofilms that readily form on implantable medical devices or human tissues have posed a great threat to worldwide healthcare. Hopes are focused on preventive strategies towards biofilms, leaving a thought-provoking question: how to tackle the problem of established biofilms? In this review, we briefly summarize the functionalized biomaterials to combat biofilms and highlight current approaches to eradicate pre-existing biofilms. We believe that all of these strategies, alone or in combination, could represent a blueprint for fighting biofilm-associated infections in the postantibiotic era.
Collapse
Affiliation(s)
- Dan-Ni Huang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | | | | | | |
Collapse
|
40
|
Yuan Q, Wang Y, Yao P, Lv J, Wang Q, Sun F, Feng W. Effect of unsymmetrical oligo-phenylene-ethynylene OPE3 against multidrug-resistant bacteria in vitro and in vivo. J Chemother 2020; 33:156-164. [PMID: 32460634 DOI: 10.1080/1120009x.2020.1770026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The rapid proliferation of multidrug-resistant (MDR) bacterial infections has posed the serious health threats. Photodynamic therapy is considered one of the most promising therapeutic strategies for combating bacterial resistance. In the present study, we synthesized an unsymmetrical oligo-p-phenylene ethynylene (OPE), namely OPE3, and investigated its antimicrobial activity against gram-negative and gram-positive MDR bacteria in vitro and in vivo. The results showed that OPE3 had marked antibacterial activity against MDR bacteria under light irradiation conditions. OPE3 exerted a slightly greater effect on gram-positive bacteria than gram-negative bacteria. Biofilm assay results showed that OPE3 could not inhibit biofilm formation at sub-minimum inhibitory concentrations (MICs), whereas a significant decrease in preformed biofilms was observed when they were treated with OPE3 at concentrations ≥2 × MIC. OPE3 had no hemolytic activity or cytotoxicity in mammalian cells at low concentrations. In the mouse model of burn infection caused by Pseudomonas aeruginosa and Staphylococcus aureus, the treatment of infected wounds with OPE3 resulted in a significant dose-dependent reduction in the bacterial load and caused smaller skin lesions. In addition, the levels of the inflammatory cytokines TNF-α and IL-6 in the serum were also significantly reduced. The present study results indicate that OPE3 may serve as a potent antimicrobial molecule for the treatment of MDR bacterial infections.
Collapse
Affiliation(s)
- Qian Yuan
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yu Wang
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Pu Yao
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jun Lv
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Qianmei Wang
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Fengjun Sun
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Wei Feng
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| |
Collapse
|
41
|
Guo R, Li K, Qin J, Niu S, Hong W. Development of polycationic micelles as an efficient delivery system of antibiotics for overcoming the biological barriers to reverse multidrug resistance in Escherichia coli. NANOSCALE 2020; 12:11251-11266. [PMID: 32412567 DOI: 10.1039/d0nr01366h] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Highly pathogenic Gram-negative bacteria (G-) are tenacious and pose a serious threat to public health, mainly because of three biological barriers: cell envelope blockages, biofilm protection, and macrophages shelter. One strategy to bypass the biological barriers and consequently achieve a satisfying G- bactericidal effect is to utilize polymeric micelles with superior bacterial recognition and binding capabilities. In the current study, we explored the biological barriers penetration ability of a traditional polycationic micellar system (PP-PEI) based on a copolymer of polylactide-poly (ethylene glycol)-polyethylenimine (PLA5K-PEG2K-PEI2K). Subsequently, tetracycline (TC) with good fluorescence property was encapsulated into the PLA core of the micelle (PP-PEI/TC) through hydrophobic interaction. The combination of a PEI shell and loaded antibiotic drug endowed the polycationic micelles with a greater capacity for killing drug-resistant bacteria, destructing biofilms, and eradicating intracellular bacteria, compared with free TC and micelles without the inoculation of a PEI moiety. Confocal laser scanning microscopy (CLSM) and flow cytometry illustrated that PP-PEI/TC could completely penetrate and accumulate in drug-resistant E. coli, biofilms, and infected macrophages. The efficient biological barrier penetration was elucidated as due to the strong electrostatic interactions between the polycationic PEI block and the anionic composition of the bacterial outer membrane (e.g., LPS), macrophage cell membrane (e.g., phospholipid), and extracellular polymeric substances (e.g., eDNA), which was confirmed by biolayer interferometry (BLI). Once the micellar system was bound to a negatively-charged surface, bacterial and cellular enzymes could degrade the PP-PEI core to release its antibacterial content and finally kill planktonic bacteria, bacteria over the depth of a biofilm, and/or intracellular bacteria. In vivo imaging indicated that fluorescent polycationic micelles accumulated in bacterial infection sites with strong fluorescence. In vivo antibacterial experiments showed that PP-PEI/TC could dramatically reduce the number of drug-resistant E. coli EB1-1 in the peritoneal cavity of acute peritonitis BALB/c mice compared with its counterparts. In conclusion, our study demonstrated that polycationic micelles with a PEI shell could penetrate into drug-resistant bacteria, the biofilm matrix, and infected macrophages and lead to the spatiotemporal release of antibacterial agents for the comprehensive treatment of drug-resistant relevant infections.
Collapse
Affiliation(s)
- Rong Guo
- School of Pharmacy, the Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Guanhai Road 346, Yantai, 264003, P. R. China.
| | - Keke Li
- School of Pharmacy, the Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Guanhai Road 346, Yantai, 264003, P. R. China.
| | - Jing Qin
- Department of Pharmaceutics, School of Pharmacy, Institute of Integrative Medicine, Fudan University, Key Laboratory of Smart Drug Delivery, Ministry of Education, Zhangheng Road 826, Shanghai, 200433, P. R. China
| | - Shengli Niu
- Key laboratory of Zoonosis of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Dongling Road 120, Shenyang, 110866, P.R. China
| | - Wei Hong
- School of Pharmacy, the Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Guanhai Road 346, Yantai, 264003, P. R. China.
| |
Collapse
|
42
|
Gao Y, Wang J, Chai M, Li X, Deng Y, Jin Q, Ji J. Size and Charge Adaptive Clustered Nanoparticles Targeting the Biofilm Microenvironment for Chronic Lung Infection Management. ACS NANO 2020; 14:5686-5699. [PMID: 32320228 DOI: 10.1021/acsnano.0c00269] [Citation(s) in RCA: 154] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Chronic lung infection caused by bacterial biofilms is an extremely serious clinical problem, which can lead to the failure of antibiotic therapy. Although nanoparticles have shown great potential in the treatment of biofilms, the efficient penetration and retention of nanoparticles in biofilms is still a big challenge. To address this issue, we herein fabricate size and charge adaptive azithromycin (AZM)-conjugated clustered nanoparticles (denoted as AZM-DA NPs) as therapeutic agents for treating biofilms. The AZM-DA NPs are prepared by electrostatic complexation between AZM conjugated amino-ended poly(amidoamine) dendrimer (PAMAM) and 2,3-dimethyl maleic anhydride (DA) modified poly(ethylene glycol)-block-polylysine (PEG-b-PLys). It is noteworthy that the AZM-DA NPs can disassemble in an acidic biofilm microenvironment (pH 6.0), leading to the release of secondary AZM-conjugated PAMAM nanoparticles (PAMAM-AZM NPs). PAMAM-AZM NPs with small size and positive charge are beneficial for improved penetration and retention inside biofilms, enhanced permeabilization of the bacterial membrane, and increased internalization of AZM, thus exhibiting excellent antibiofilm activities. AZM-DA NPs are also favorable as long-term antibacterial agents due to the reduced occurrence of drug resistance. In vivo therapeutic performance is confirmed by the reduced bacterial burden and the alleviated inflammation in the chronic lung infection model. This research not only develops an innovative strategy for antibiotic delivery in vivo but also provides an effective way for the management of biofilm-associated infections, including chronic lung infection.
Collapse
Affiliation(s)
- Yifan Gao
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
| | - Jing Wang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
| | - Mengying Chai
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
| | - Xu Li
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
| | - Yongyan Deng
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
| | - Qiao Jin
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
| |
Collapse
|
43
|
Ma W, Chen X, Fu L, Zhu J, Fan M, Chen J, Yang C, Yang G, Wu L, Mao G, Yang X, Mou X, Gu Z, Cai X. Ultra-efficient Antibacterial System Based on Photodynamic Therapy and CO Gas Therapy for Synergistic Antibacterial and Ablation Biofilms. ACS APPLIED MATERIALS & INTERFACES 2020; 12:22479-22491. [PMID: 32329344 DOI: 10.1021/acsami.0c01967] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In recent years, with the emergence of various kinds of drug-resistant bacteria, existing antibiotics have become inefficient in killing these bacteria, and the formation of biofilms has further weakened the therapeutic effect. More problematically, the massive use and abuse of antibiotics have caused severe side effects. Thus, the development of ultra-efficient and safe antibacterial systems is urgently needed. Herein, a photodynamic therapy (PDT)-driven CO-controlled delivery system (Ce6&CO@FADP) is developed for synergistic antibacterial and ablation biofilms. Ce6&CO@FADP is constructed using a fluorinated amphiphilic dendritic peptide (FADP) and physically loaded with Ce6 and CORM-401. After efficiently entering the bacteria, Ce6&CO@FADP can rapidly release CO intracellularly by the massive consumption of the H2O2 generated during the PDT process, without affecting the generation of singlet oxygen (1O2). As such, the combination of CO and 1O2 exerts notable synergistic antibacterial and biofilm ablation effects both in vitro and in vivo (including subcutaneous bacterial infection and biofilm catheter models) experiments. More importantly, all biosafety assessments suggest the good biocompatibility of Ce6&CO@FADP. Together, these results reveal that Ce6&CO@FADP is an efficient and safe antibacterial system, which has essential application prospects for the treatment of bacterial infections and ablation of biofilms in vivo.
Collapse
Affiliation(s)
- Wei Ma
- College of Materials Science and Engineering, Nanjing Tech University, 30 Puzhu Road, 211816 Nanjing, P. R. China
| | - Xiaoyi Chen
- Clinical Research Institute, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), No. 158 Shangtang Road, 310014 Hangzhou, Zhejiang Province, P. R. China
| | - Luoqin Fu
- Clinical Research Institute, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), No. 158 Shangtang Road, 310014 Hangzhou, Zhejiang Province, P. R. China
| | - Jingwu Zhu
- College of Materials Science and Engineering, Nanjing Tech University, 30 Puzhu Road, 211816 Nanjing, P. R. China
| | - Mengni Fan
- College of Materials Science and Engineering, Nanjing Tech University, 30 Puzhu Road, 211816 Nanjing, P. R. China
| | - Junpeng Chen
- College of Materials Science and Engineering, Nanjing Tech University, 30 Puzhu Road, 211816 Nanjing, P. R. China
| | - Chao Yang
- College of Materials Science and Engineering, Nanjing Tech University, 30 Puzhu Road, 211816 Nanjing, P. R. China
| | - Guangzhen Yang
- College of Materials Science and Engineering, Nanjing Tech University, 30 Puzhu Road, 211816 Nanjing, P. R. China
| | - Lihuang Wu
- College of Materials Science and Engineering, Nanjing Tech University, 30 Puzhu Road, 211816 Nanjing, P. R. China
| | - Genxiang Mao
- Department of Geriatrics, Zhejiang Hospital, Zhejiang Provincial Key Lab of Geriatrics & Geriatrics Institute of Zhejiang Province, No. 1229 Gudun Road, 310013 Hangzhou, Zhejiang Province, P. R. China
| | - Xue Yang
- Clinical Research Institute, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), No. 158 Shangtang Road, 310014 Hangzhou, Zhejiang Province, P. R. China
| | - Xiaozhou Mou
- Clinical Research Institute, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), No. 158 Shangtang Road, 310014 Hangzhou, Zhejiang Province, P. R. China
| | - Zhongwei Gu
- College of Materials Science and Engineering, Nanjing Tech University, 30 Puzhu Road, 211816 Nanjing, P. R. China
| | - Xiaojun Cai
- College of Materials Science and Engineering, Nanjing Tech University, 30 Puzhu Road, 211816 Nanjing, P. R. China
| |
Collapse
|
44
|
Wang Y, Yang Y, Shi Y, Song H, Yu C. Antibiotic-Free Antibacterial Strategies Enabled by Nanomaterials: Progress and Perspectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1904106. [PMID: 31799752 DOI: 10.1002/adma.201904106] [Citation(s) in RCA: 263] [Impact Index Per Article: 65.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/17/2019] [Indexed: 05/17/2023]
Abstract
Bacterial infection is one of the top ten leading causes of death globally and the worst killer in low-income countries. The overuse of antibiotics leads to ever-increasing antibiotic resistance, posing a severe threat to human health. Recent advances in nanotechnology provide new opportunities to address the challenges in bacterial infection by killing germs without using antibiotics. Antibiotic-free antibacterial strategies enabled by advanced nanomaterials are presented. Nanomaterials are classified on the basis of their mode of action: nanomaterials with intrinsic or light-mediated bactericidal properties and others that serve as vehicles for the delivery of natural antibacterial compounds. Specific attention is given to antibacterial mechanisms and the structure-performance relationship. Practical antibacterial applications employing these antibiotic-free strategies are also introduced. Current challenges in this field and future perspectives are presented to stimulate new technologies and their translation to fight against bacterial infection.
Collapse
Affiliation(s)
- Yue Wang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Yannan Yang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Yiru Shi
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Hao Song
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Chengzhong Yu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, P. R. China
| |
Collapse
|
45
|
Guo X, Cao B, Wang C, Lu S, Hu X. In vivo photothermal inhibition of methicillin-resistant Staphylococcus aureus infection by in situ templated formulation of pathogen-targeting phototheranostics. NANOSCALE 2020; 12:7651-7659. [PMID: 32207761 DOI: 10.1039/d0nr00181c] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bacterial infection has caused a serious threat to human public health. Methicillin-resistant Staphylococcus aureus (MRSA) is a representative drug-resistant bacterium, which is difficult to eradicate completely, resulting in high infection probability with severe mortality. Herein, pathogen-targeting phototheranostic nanoparticles, Van-OA@PPy, are developed for efficient elimination of MRSA infection. Van-OA@PPy nanoparticles are fabricated from the in situ templated formation of polypyrrole (PPy) in the presence of ferric ions (Fe3+) and a polymer template, hydrophilic poly(2-hydroxyethyl methacrylate-co-N,N-dimethyl acrylamide), P(HEMA-co-DMA). PPy nanoparticles are further coated with vancomycin conjugated oleic acid (Van-OA) to afford the resultant pathogen-targeting Van-OA@PPy. A high photothermal conversion efficiency of ∼49.4% is achieved. MRSA can be efficiently killed due to sufficient nanoparticle adhesion and fusion with MRSA, followed by photothermal therapy upon irradiation with an 808 nm laser. Remarkable membrane damage of MRSA is observed, which contributes greatly to the inhibition of MRSA infection. Furthermore, the nanoparticles have high stability and good biocompatibility without causing any detectable side effects. On the other hand, residual Fe3+ and PPy moieties in Van-OA@PPy endow the nanoparticles with magnetic resonance (MR) imaging and photoacoustic (PA) imaging potency, respectively. The current strategy has the potential to inspire further advances in precise diagnosis and efficient elimination of MRSA infection in biomedicine.
Collapse
Affiliation(s)
- Xujuan Guo
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, 510631, China.
| | | | | | | | | |
Collapse
|
46
|
Shu X, Liao J, Wang L, Shi Q, Xie X. Osteogenic, Angiogenic, and Antibacterial Bioactive Nano-Hydroxyapatite Co-Synthesized Using γ-Polyglutamic Acid and Copper. ACS Biomater Sci Eng 2020; 6:1920-1930. [PMID: 33455304 DOI: 10.1021/acsbiomaterials.0c00096] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nano-antibacterial calcium phosphate (CaP) has attracted intense attention with regard to its wide variety of medical and biological applications. The γ-polyglutamic acid and copper cosynthesized hydroxyapatite (γ-PGA/CuxHAp) was synthesized using the wet method. Structural and chemical characterizations demonstrate that copper was quantitatively incorporated into the hydroxyapatite structure, and the degree of Cu substitution was up to 20 mol % in the synthesized nanocrystals. Morphology characterization showed that the size of the γ-PGA/CuxHAp nanoparticles decreases with the increased copper content. γ-PGA/CuxHAp exhibited a steady release of Cu ions. Two experimental protocols were applied to compare the antibacterial activity of the γ-PGA/CuxHAp samples. A positive correlation was observed between Cu content and the inhibition of bacterial growth. The study also showed that nanoparticles with smaller particle sizes exhibited higher antibacterial activities than the larger particles. Endothelial and osteoblast cells rapidly proliferated on γ-PGA/CuxHAp, whereas high concentrations (20 mol %) of Cu ions reduced cell proliferation. In the rat calvarial defect model, some γ-PGA/CuxHAp samples such as γ-PGA/CuxHAp (x = 8, 16) showed efficient bone regeneration capacities at 12 weeks post implantation. Thus, the multibiofunctional γ-PGA/CuxHAp nanocomposite exhibited degradative, angiogenic, bactericidal and bone regenerative properties, providing a potential means to address some of the critical challenges in the field of bone tissue engineering.
Collapse
Affiliation(s)
- Xiulin Shu
- Guangdong Institute of Microbiology, Guangdong Academy of Sciences, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture, Collection and Application, Guangdong Open Laboratory of Applied Microbiology Guangzhou, Guangdong 510070, China
| | - Junda Liao
- Guangdong Institute of Microbiology, Guangdong Academy of Sciences, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture, Collection and Application, Guangdong Open Laboratory of Applied Microbiology Guangzhou, Guangdong 510070, China
| | - Lingling Wang
- Guangdong Institute of Microbiology, Guangdong Academy of Sciences, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture, Collection and Application, Guangdong Open Laboratory of Applied Microbiology Guangzhou, Guangdong 510070, China
| | - Qingshan Shi
- Guangdong Institute of Microbiology, Guangdong Academy of Sciences, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture, Collection and Application, Guangdong Open Laboratory of Applied Microbiology Guangzhou, Guangdong 510070, China
| | - Xiaobao Xie
- Guangdong Institute of Microbiology, Guangdong Academy of Sciences, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture, Collection and Application, Guangdong Open Laboratory of Applied Microbiology Guangzhou, Guangdong 510070, China
| |
Collapse
|
47
|
Zhao WB, Du MR, Liu KK, Zhou R, Ma RN, Jiao Z, Zhao Q, Shan CX. Hydrophilic ZnO Nanoparticles@Calcium Alginate Composite for Water Purification. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13305-13315. [PMID: 32092266 DOI: 10.1021/acsami.9b23458] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Herein, hydrophilic ZnO nanoparticles@calcium alginate composite has been prepared by embedding hydrophilic ZnO nanoparticles (NPs) into calcium alginate. The hydrophilic ZnO NPs within the composites can act as a killer of bacteria, while calcium alginate can remove the organic impurities due to its adsorption capacity, thus realizing the purification of water via sterilization and removal of organics. A water purifier based on the composite has been demonstrated, the aerobic bacterial counts of the contaminated water can be decreased from 2240 to 9 cfu mL-1, and the turbidity of the water is decreased to 0.51 NTU, which is below the maximum permissible of Guidelines for Drinking-water Quality designed by the World Health Organization. Sterilization mechanism studies show that the ZnO NPs can cause excessive oxidative stress in cells, inducing bacteria to produce large amounts of intracellular reactive oxygen species (ROS), which leads to the apoptosis of the bacteria.
Collapse
Affiliation(s)
- Wen-Bo Zhao
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Meng-Ru Du
- Henan Key Laboratory of Ion-beam Bioengineering, School of Agricultural Science, Zhengzhou University, Zhengzhou 450052, China
| | - Kai-Kai Liu
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Rui Zhou
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Ruo-Nan Ma
- Henan Key Laboratory of Ion-beam Bioengineering, School of Agricultural Science, Zhengzhou University, Zhengzhou 450052, China
| | - Zhen Jiao
- Henan Key Laboratory of Ion-beam Bioengineering, School of Agricultural Science, Zhengzhou University, Zhengzhou 450052, China
| | - Qi Zhao
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Chong-Xin Shan
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| |
Collapse
|
48
|
Chu X, Wu F, Sun B, Zhang M, Song S, Zhang P, Wang Y, Zhang Q, Zhou N, Shen J. Genipin cross-linked carbon dots for antimicrobial, bioimaging and bacterial discrimination. Colloids Surf B Biointerfaces 2020; 190:110930. [PMID: 32146275 DOI: 10.1016/j.colsurfb.2020.110930] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/28/2020] [Accepted: 03/01/2020] [Indexed: 01/09/2023]
Abstract
Multifunctional carbon dots (CDs) present enormous potential in numerous applications and have attracted widespread attention for various applications in the biomedical field. Bacterial infection is a common health issue; the development of antibacterial materials with low toxicity and good biocompatibility is becoming more important. In this work, we synthesized a new type of nitrogen co-doped carbon dots-genipin covalent conjugate (N-CDs-GP) via hydrothermal methods. The microstructure and chemical composition of the N-CDs-GP were characterized. The biocompatibility, stability, antibacterial activity, and fluorescence performance of the N-CDs-GP were assessed. The results revealed that N-CDs-GP possessed high biocompatibility, high light stability, and broad antibacterial activity. Additionally, selective Gram-positive bacterial imaging by N-CDs-GP provided a more rapid method of bacterial detection. The N-CDs-GP have the potential to be applied as bioimaging and antibacterial agents and for bacterial discrimination.
Collapse
Affiliation(s)
- Xiaohong Chu
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China
| | - Fan Wu
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China
| | - Baohong Sun
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China
| | - Ming Zhang
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Department of Health Technology, Technical University of Denmark, Kongens Lyngby, 2800, Denmark
| | - Saijie Song
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China
| | - Pan Zhang
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China
| | - Yuli Wang
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China
| | - Qicheng Zhang
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China
| | - Ninglin Zhou
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China; Nanjing Zhou Ninglin Advanced Materials Technology Company Limited, Nanjing 211505, China.
| | - Jian Shen
- Jiangsu Collaborative Innovation Center for Biological Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Engineering Research Center for Biomedical Function Materials, Nanjing 210023, China.
| |
Collapse
|
49
|
Zhao YQ, Sun Y, Zhang Y, Ding X, Zhao N, Yu B, Zhao H, Duan S, Xu FJ. Well-Defined Gold Nanorod/Polymer Hybrid Coating with Inherent Antifouling and Photothermal Bactericidal Properties for Treating an Infected Hernia. ACS NANO 2020; 14:2265-2275. [PMID: 32017535 DOI: 10.1021/acsnano.9b09282] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Biomedical device-associated infection (BAI) is a great challenge in modern clinical medicine. Therefore, developing efficient antibacterial materials is significantly important and meaningful for the improvement of medical treatment and people's health. In the present work, we developed a strategy of surface functionalization for multifunctional antibacterial applications. A functionalized polyurethane (PU, a widely used biomedical material for hernia repairing) surface (PU-Au-PEG) with inherent antifouling and photothermal bactericidal properties was readily prepared based on a near-infrared (NIR)-responsive organic/inorganic hybrid coating which consists of gold nanorods (Au NRs) and polyethylene glycol (PEG). The PU-Au-PEG showed a high efficiency to resist adhesion of bacteria and exhibited effective photothermal bactericidal properties under 808 nm NIR irradiation, especially against multidrug-resistant bacteria. Furthermore, the PU-Au-PEG could inhibit biofilm formation long term. The biocompatibility of PU-Au-PEG was also proved by cytotoxicity and hemolysis tests. The in vivo photothermal antibacterial properties were first verified by a subcutaneous implantation animal model. Then, the anti-infection performance in a clinical scenario was studied with an infected hernia model. The results of animal experiment studies demonstrated excellent in vivo anti-infection performances of PU-Au-PEG. The present work provides a facile and promising approach to develop multifunctional biomedical devices.
Collapse
Affiliation(s)
- Yu-Qing Zhao
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Yujie Sun
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology , Capital Medical University , Beijing 100050 , China
| | - Yidan Zhang
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Xiaokang Ding
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Nana Zhao
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Bingran Yu
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Hong Zhao
- Mechanical and Nuclear Engineering , Virginia Commonwealth University , Richmond , Virginia 23219 , United States
| | - Shun Duan
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing 100029 , China
- Mechanical and Nuclear Engineering , Virginia Commonwealth University , Richmond , Virginia 23219 , United States
| | - Fu-Jian Xu
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing 100029 , China
| |
Collapse
|
50
|
Wang H, Guo L, Wang Y, Feng L. Bactericidal activity-tunable conjugated polymers as a human-friendly bactericide for the treatment of wound infections. Biomater Sci 2020; 7:3788-3794. [PMID: 31218306 DOI: 10.1039/c9bm00695h] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Photodynamic therapy (PDT) has been reported to be an effective alternative to combat bacterial infections even those triggered by drug-resistant strains as there is little chance to develop resistance to this therapy. Therefore, it is imperative to design and synthesize a superior photo-active bactericide for the treatment of bacterial infections. Herein, we synthesized three bactericidal activity-tunable conjugated polymers (P1-P3) with various photoactive capabilities and employed them for the treatment of wound infections with little damage to cells; by altering the construction unit of π-conjugated backbone structures with electron-rich and electron-deficient aromatic heterocycles, the optical properties and ability of reactive oxygen species (ROS) generation could be regulated; this resulted in a tunable killing ability. The cationic quaternary ammonium (QA) groups on the side chains endowed the CPs with not only good dispersibility but also a better interaction with the negatively charged membrane of bacteria. The antibacterial experiments towards ampicillin-resistant Escherichia coli TOP10 (E. coli) and the treatment of wound infections in mice indicate that the P1-P3 have varied bactericidal activities; moreover, P3 has been demonstrated to be a human-friendly bactericide with excellent antibacterial capability. It not only acts as a potential bactericide for the practical treatment of infectious wounds, but also offers guidance for the design and structure control of photo-active bactericides.
Collapse
Affiliation(s)
- Haoping Wang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, P.R. China.
| | | | | | | |
Collapse
|