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Jiang J, Lv X, Cheng H, Yang D, Xu W, Hu Y, Song Y, Zeng G. Type I photodynamic antimicrobial therapy: Principles, progress, and future perspectives. Acta Biomater 2024; 177:1-19. [PMID: 38336269 DOI: 10.1016/j.actbio.2024.02.005] [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: 12/21/2023] [Revised: 01/25/2024] [Accepted: 02/04/2024] [Indexed: 02/12/2024]
Abstract
The emergence of drug-resistant bacteria has significantly diminished the efficacy of existing antibiotics in the treatment of bacterial infections. Consequently, the need for finding a strategy capable of effectively combating bacterial infections has become increasingly urgent. Photodynamic therapy (PDT) is considered one of the most promising emerging antibacterial strategies due to its non-invasiveness, low adverse effect, and the fact that it does not lead to the development of drug resistance. However, bacteria at the infection sites often exist in the form of biofilm instead of the planktonic form, resulting in a hypoxic microenvironment. This phenomenon compromises the treatment outcome of oxygen-dependent type-II PDT. Compared to type-II PDT, type-I PDT is not constrained by the oxygen concentration in the infected tissues. Therefore, in the treatment of bacterial infections, type-I PDT exhibits significant advantages over type-II PDT. In this review, we first introduce the fundamental principles of type-I PDT in details, including its physicochemical properties and how it generates reactive oxygen species (ROS). Next, we explore several specific antimicrobial mechanisms utilized by type-I PDT and summarize the recent applications of type-I PDT in antimicrobial treatment. Finally, the limitations and future development directions of type-I photosensitizers are discussed. STATEMENT OF SIGNIFICANCE: The misuse and overuse of antibiotics have accelerated the development of bacterial resistance. To achieve the effective eradication of resistant bacteria, pathfinders have devised various treatment strategies. Among these strategies, type I photodynamic therapy has garnered considerable attention owing to its non-oxygen dependence. The utilization of non-oxygen-dependent photodynamic therapy not only enables the effective elimination of drug-resistant bacteria but also facilitates the successful eradication of hypoxic biofilms, which exhibits promising prospects for treating biofilm-associated infections. Based on the current research status, we anticipate that the novel type I photodynamic therapy agent can surmount the biofilm barrier, enabling efficient treatment of hypoxic biofilm infections.
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Affiliation(s)
- Jingai Jiang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing 211816, China
| | - Xinyi Lv
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing 211816, China
| | - Huijuan Cheng
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing 211816, China
| | - Dongliang Yang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Wenjia Xu
- School of Life Sciences and Chemical Engineering, Jiangsu Second Normal University, Nanjing 211200, China.
| | - Yanling Hu
- Nanjing Polytechnic Institute, Nanjing 210048, China.
| | - Yanni Song
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing 211816, China
| | - Guisheng Zeng
- A*STAR Infectious Diseases Labs (A*STAR ID Labs), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #05-13 Immunos, Singapore 138648.
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2
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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.
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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
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3
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Zhou C, Huang C, Li L, Tian Y, Zhang J, Lin L, Li C, Ye Y. Apricot polysaccharides as new carriers to make curcumin nanoparticles and improve its stability and antibacterial activity. J Food Sci 2024; 89:881-899. [PMID: 38193203 DOI: 10.1111/1750-3841.16901] [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: 07/24/2023] [Revised: 11/30/2023] [Accepted: 12/07/2023] [Indexed: 01/10/2024]
Abstract
Apricot polysaccharides (APs) as new types of natural carriers for encapsulating and delivering active pharmaceutical ingredients can achieve high-value utilization of apricot pulp and improve the solubility, the stability, and the antibacterial activity of insoluble compounds simultaneously. In this research, the purified APs reacted with bovine serum albumin (BSA) by the Maillard reaction, and with d-α-tocopheryl succinate (TOS) and pheophorbide A (PheoA) by grafting to fabricate two materials for the preparation of curcumin (Cur)-encapsulated AP-BSA nanoparticles (CABNs) and Cur-embedded TOS-AP-PheoA micelles (CTAPMs), respectively. The biological activities of two Cur nano-delivery systems were evaluated. APs consisted of arabinose (22.36%), galactose (7.88%), glucose (34.46%), and galacturonic acid (31.32%) after the optimized extraction. Transmission electron microscopy characterization of CABNs and CTAPMs displayed a discrete and non-aggregated morphology with a spherical shape. Compared to the unencapsulated Cur, the release rates of CABNs and CTAPMs decreased from 87% to 70% at 3 h and from 92% to 25% at 48 h, respectively. The antioxidant capacities of CABNs and CTAPMs were significantly improved. The CTAPMs exhibited a better antibacterial effect against Escherichia coli than CABNs due to the synergistic photosensitive effect between Cur and PheoA.
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Affiliation(s)
- Chunka Zhou
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Chuanqing Huang
- National Key Laboratory of Non-food Biomass Energy Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, China
| | - Lu Li
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Yunong Tian
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Jin Zhang
- Gaoyao District Comprehensive Emergency Rescue Center, Zhaoqing, China
| | - Lin Lin
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha, China
| | - Changzhu Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha, China
| | - Yong Ye
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
- SCUT-Zhuhai Institute of Modern Industrial Innovation, Zhuhai, China
- Jiangxi Environmental Engineering Vocational College, Ganzhou, China
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4
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Gong J, Liu L, Li C, He Y, Yu J, Zhang Y, Feng L, Jiang G, Wang J, Tang BZ. Oxidization enhances type I ROS generation of AIE-active zwitterionic photosensitizers for photodynamic killing of drug-resistant bacteria. Chem Sci 2023; 14:4863-4871. [PMID: 37181775 PMCID: PMC10171080 DOI: 10.1039/d3sc00980g] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 04/05/2023] [Indexed: 05/16/2023] Open
Abstract
Type I photosensitizers (PSs) with an aggregation-induced emission (AIE) feature have received sustained attention for their excellent theranostic performance in the treatment of clinical diseases. However, the development of AIE-active type I PSs with strong reactive oxygen species (ROS) production capacity remains a challenge due to the lack of in-depth theoretical studies on the aggregate behavior of PSs and rational design strategies. Herein, we proposed a facile oxidization strategy to enhance the ROS generation efficiency of AIE-active type I PSs. Two AIE luminogens, MPD and its oxidized product MPD-O were synthesized. Compared with MPD, the zwitterionic MPD-O showed higher ROS generation efficiency. The introduction of electron-withdrawing oxygen atoms results in the formation of intermolecular hydrogen bonds in the molecular stacking of MPD-O, which endowed MPD-O with more tightly packed arrangement in the aggregate state. Theoretical calculations demonstrated that more accessible intersystem crossing (ISC) channels and larger spin-orbit coupling (SOC) constants provide further explanation for the superior ROS generation efficiency of MPD-O, which evidenced the effectiveness of enhancing the ROS production ability by the oxidization strategy. Moreover, DAPD-O, a cationic derivative of MPD-O, was further synthesized to improve the antibacterial activity of MPD-O, showing excellent photodynamic antibacterial performance against methicillin-resistant S. aureus both in vitro and in vivo. This work elucidates the mechanism of the oxidization strategy for enhancing the ROS production ability of PSs and offers a new guideline for the exploitation of AIE-active type I PSs.
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Affiliation(s)
- Jianye Gong
- College of Chemistry and Chemical Engineering, Inner Mongolia Key Laboratory of Fine Organic Synthesis, Inner Mongolia University Hohhot 010021 P. R. China
| | - Lingxiu Liu
- College of Chemistry and Chemical Engineering, Inner Mongolia Key Laboratory of Fine Organic Synthesis, Inner Mongolia University Hohhot 010021 P. R. China
| | - Chunbin Li
- College of Chemistry and Chemical Engineering, Inner Mongolia Key Laboratory of Fine Organic Synthesis, Inner Mongolia University Hohhot 010021 P. R. China
| | - Yumao He
- College of Chemistry and Chemical Engineering, Inner Mongolia Key Laboratory of Fine Organic Synthesis, Inner Mongolia University Hohhot 010021 P. R. China
| | - Jia Yu
- College of Chemistry and Chemical Engineering, Inner Mongolia Key Laboratory of Fine Organic Synthesis, Inner Mongolia University Hohhot 010021 P. R. China
| | - Ying Zhang
- College of Chemistry and Chemical Engineering, Inner Mongolia Key Laboratory of Fine Organic Synthesis, Inner Mongolia University Hohhot 010021 P. R. China
| | - Lina Feng
- College of Chemistry and Chemical Engineering, Inner Mongolia Key Laboratory of Fine Organic Synthesis, Inner Mongolia University Hohhot 010021 P. R. China
| | - Guoyu Jiang
- College of Chemistry and Chemical Engineering, Inner Mongolia Key Laboratory of Fine Organic Synthesis, Inner Mongolia University Hohhot 010021 P. R. China
| | - Jianguo Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia Key Laboratory of Fine Organic Synthesis, Inner Mongolia University Hohhot 010021 P. R. China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong Shenzhen Guangdong 518172 China
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Shen Z, Pan Y, Yan D, Wang D, Tang BZ. AIEgen-Based Nanomaterials for Bacterial Imaging and Antimicrobial Applications: Recent Advances and Perspectives. Molecules 2023; 28:2863. [PMID: 36985835 PMCID: PMC10057855 DOI: 10.3390/molecules28062863] [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: 01/31/2023] [Revised: 03/14/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
Microbial infections have always been a thorny problem. Multi-drug resistant (MDR) bacterial infections rendered the antibiotics commonly used in clinical treatment helpless. Nanomaterials based on aggregation-induced emission luminogens (AIEgens) recently made great progress in the fight against microbial infections. As a family of photosensitive antimicrobial materials, AIEgens enable the fluorescent tracing of microorganisms and the production of reactive oxygen (ROS) and/or heat upon light irradiation for photodynamic and photothermal treatments targeting microorganisms. The novel nanomaterials constructed by combining polymers, antibiotics, metal complexes, peptides, and other materials retain the excellent antimicrobial properties of AIEgens while giving other materials excellent properties, further enhancing the antimicrobial effect of the material. This paper reviews the research progress of AIEgen-based nanomaterials in the field of antimicrobial activity, focusing on the materials' preparation and their related antimicrobial strategies. Finally, it concludes with an outlook on some of the problems and challenges still facing the field.
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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
| | - 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
| | - Dingyuan Yan
- 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
| | - 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
| | - 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
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Geng Z, Cao Z, Liu J. Recent advances in targeted antibacterial therapy basing on nanomaterials. EXPLORATION (BEIJING, CHINA) 2023; 3:20210117. [PMID: 37323620 PMCID: PMC10191045 DOI: 10.1002/exp.20210117] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 05/19/2022] [Indexed: 06/17/2023]
Abstract
Bacterial infection has become one of the leading causes of death worldwide, particularly in low-income countries. Despite the fact that antibiotics have provided successful management in bacterial infections, the long-term overconsumption and abuse of antibiotics has contributed to the emergence of multidrug resistant bacteria. To address this challenge, nanomaterials with intrinsic antibacterial properties or that serve as drug carriers have been substantially developed as an alternative to fight against bacterial infection. Systematically and deeply understanding the antibacterial mechanisms of nanomaterials is extremely important for designing new therapeutics. Recently, nanomaterials-mediated targeted bacteria depletion in either a passive or active manner is one of the most promising approaches for antibacterial treatment by increasing local concentration around bacterial cells to enhance inhibitory activity and reduce side effects. Passive targeting approach is widely explored by searching nanomaterial-based alternatives to antibiotics, while active targeting strategy relies on biomimetic or biomolecular surface feature that can selectively recognize targeted bacteria. In this review article, we summarize the recent developments in the field of targeted antibacterial therapy based on nanomaterials, which will promote more innovative thinking focusing on the treatment of multidrug-resistant bacteria.
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Affiliation(s)
- Zhongmin Geng
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiChina
- The Affiliated Hospital of Qingdao UniversityQingdao UniversityQingdaoChina
- Qingdao Cancer InstituteQingdao UniversityQingdaoChina
| | - Zhenping Cao
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiChina
| | - Jinyao Liu
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiChina
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7
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Recent Progress in Type I Aggregation-Induced Emission Photosensitizers for Photodynamic Therapy. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010332. [PMID: 36615526 PMCID: PMC9822449 DOI: 10.3390/molecules28010332] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/21/2022] [Accepted: 12/26/2022] [Indexed: 01/03/2023]
Abstract
In modern medicine, precision diagnosis and treatment using optical materials, such as fluorescence/photoacoustic imaging-guided photodynamic therapy (PDT), are becoming increasingly popular. Photosensitizers (PSs) are the most important component of PDT. Different from conventional PSs with planar molecular structures, which are susceptible to quenching effects caused by aggregation, the distinct advantages of AIE fluorogens open up new avenues for the development of image-guided PDT with improved treatment accuracy and efficacy in practical applications. It is critical that as much of the energy absorbed by optical materials is dissipated into the pathways required to maximize biomedical applications as possible. Intersystem crossing (ISC) represents a key step during the energy conversion process that determines many fundamental optical properties, such as increasing the efficiency of reactive oxygen species (ROS) production from PSs, thus enhancing PDT efficacy. Although some review articles have summarized the accomplishments of various optical materials in imaging and therapeutics, few of them have focused on how to improve the phototherapeutic applications, especially PDT, by adjusting the ISC process of organic optics materials. In this review, we emphasize the latest advances in the reasonable design of AIE-active PSs with type I photochemical mechanism for anticancer or antibacterial applications based on ISC modulation, as well as discuss the future prospects and challenges of them. In order to maximize the anticancer or antibacterial effects of type I AIE PSs, it is the aim of this review to offer advice for their design with the best energy conversion.
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Hou B, Yang F, Hu C, Liu C, Xiao X, Chen Y, Huang X, Xie S. A Novel Bifunctional Nanoplatform with Aggregation-Induced Emission Property for Efficient Photodynamic Killing of Bacteria and Wound Healing. Infect Drug Resist 2022; 15:7351-7361. [PMID: 36540099 PMCID: PMC9760083 DOI: 10.2147/idr.s391272] [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: 09/30/2022] [Accepted: 12/06/2022] [Indexed: 08/30/2023] Open
Abstract
BACKGROUND Photodynamic antimicrobial therapy (PDAT) has been extensively studied because of its potential applications such as precise controllability, high spatiotemporal accuracy, and non-invasiveness. More importantly, it is difficult for bacteria to develop resistance to the aforementioned PDATs. However, the selectivity of traditional PDAT methods to bacteria is generally poor, so it has been proposed to introduce positively charged components such as quaternary ammonium salts to enhance the targeting of bacteria; however, they always possess high toxicity to normal cells. As a result, measures should be taken to enhance the targeting of bacteria and avoid side effects on normal cells. METHODS AND RESULTS In our work, we creatively design a nanoplatform with high anti-bacterial efficiency, low side effects and its size is approximately 121 nm. BSA, as a nanocarrier, encapsulates the photosensitizer (E)-4-(4-(diphenylamino)styryl)-1-methylpyridin-1-ium with AIE properties named as BSA-Tpy, which increases its circulation time in vivo and improves the biocompatibility. Under acidic conditions (pH = 5.0), the surface positive charge of the BSA-Tpy is increased to +18.8 mV due to protonation of amine residues to achieve the targeting effect on bacteria. Besides, under the irradiation of white light, the BSA-Tpy will produce ROS to kill bacteria efficiently about 99.99% for both Gram-positive and Gram-negative bacteria, which shows the potential application value for the treatment of infected wounds. CONCLUSION We have developed a feasible method for photodynamic antibacterial therapy, possessing excellent biocompatibility and high antibacterial efficiency with good fluorescence imaging property.
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Affiliation(s)
- Biao Hou
- Department of Hand and Foot Microsurgery, The Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Hengyang, People’s Republic of China
| | - Fen Yang
- Department of Infectious Diseases, The Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Hengyang, People’s Republic of China
| | - Chaotao Hu
- Department of Hand and Foot Microsurgery, The Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Hengyang, People’s Republic of China
| | - Changxiong Liu
- Department of Hand and Foot Microsurgery, The Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Hengyang, People’s Republic of China
| | - Xiangjun Xiao
- Department of Hand and Foot Microsurgery, The Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Hengyang, People’s Republic of China
| | - Yanming Chen
- Department of Hand and Foot Microsurgery, The Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Hengyang, People’s Republic of China
| | - Xiongjie Huang
- Department of Hand and Foot Microsurgery, The Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Hengyang, People’s Republic of China
| | - Songlin Xie
- Department of Hand and Foot Microsurgery, The Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Hengyang, People’s Republic of China
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Shih CP, Tang X, Kuo CW, Chueh DY, Chen P. Design principles of bioinspired interfaces for biomedical applications in therapeutics and imaging. Front Chem 2022; 10:990171. [PMID: 36405322 PMCID: PMC9673126 DOI: 10.3389/fchem.2022.990171] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 09/08/2022] [Indexed: 09/29/2023] Open
Abstract
In the past two decades, we have witnessed rapid developments in nanotechnology, especially in biomedical applications such as drug delivery, biosensing, and bioimaging. The most commonly used nanomaterials in biomedical applications are nanoparticles, which serve as carriers for various therapeutic and contrast reagents. Since nanomaterials are in direct contact with biological samples, biocompatibility is one of the most important issues for the fabrication and synthesis of nanomaterials for biomedical applications. To achieve specific recognition of biomolecules for targeted delivery and biomolecular sensing, it is common practice to engineer the surfaces of nanomaterials with recognition moieties. This mini-review summarizes different approaches for engineering the interfaces of nanomaterials to improve their biocompatibility and specific recognition properties. We also focus on design strategies that mimic biological systems such as cell membranes of red blood cells, leukocytes, platelets, cancer cells, and bacteria.
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Affiliation(s)
- Chun-Pei Shih
- Research Center for Applied Sciences, Academia Sinica, Taipei, Taiwan
| | - Xiaofang Tang
- Research Center for Applied Sciences, Academia Sinica, Taipei, Taiwan
| | - Chiung Wen Kuo
- Research Center for Applied Sciences, Academia Sinica, Taipei, Taiwan
| | - Di-Yen Chueh
- Research Center for Applied Sciences, Academia Sinica, Taipei, Taiwan
| | - Peilin Chen
- Research Center for Applied Sciences, Academia Sinica, Taipei, Taiwan
- Institute of Physics, Academia Sinica, Taipei, Taiwan
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Chowdhury P, Banerjee A, Saha B, Bauri K, De P. Stimuli-Responsive Aggregation-Induced Emission (AIE)-Active Polymers for Biomedical Applications. ACS Biomater Sci Eng 2022; 8:4207-4229. [PMID: 36054823 DOI: 10.1021/acsbiomaterials.2c00656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
At high concentration or in the aggregated state, most of the traditional luminophores suffer from the general aggregation-caused quenching (ACQ) effect, which significantly limits their biomedical applications. On the contrary, a few fluorophores exhibit an aggregation-induced emission (AIE) feature which is just the opposite of ACQ. The luminophores with aggregation-induced emission (AIEgens) have exhibited noteworthy advantages to get tunable emission, excellent photostability, and biocompatibility. Incorporating AIEgens into polymer design has yielded diversified polymer systems with fascinating photophysical characteristics. Again, stimuli-responsive polymers are capable of undergoing chemical and/or physical property changes on receiving signals from single or multiple stimuli. The combination of the AIE property and stimuli responses in a single polymer platform provides a feasible and effective strategy for the development of smart polymers with promising biomedical applications. Herein, the advancements in stimuli-responsive polymers with AIE characteristics for biomedical applications are summarized. AIE-active polymers are first categorized into conventional π-π conjugated and nonconventional fluorophore systems and then subdivided based on various stimuli, such as pH, redox, enzyme, reactive oxygen species (ROS), and temperature. In each section, the design strategies of the smart polymers and their biomedical applications, including bioimaging, cancer theranostics, gene delivery, and antimicrobial examples, are introduced. The current challenges and future perspectives of this field are also stated at the end of this review article.
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Affiliation(s)
- Pampa Chowdhury
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246 Nadia, West Bengal, India
| | - Arnab Banerjee
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246 Nadia, West Bengal, India
| | - Biswajit Saha
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246 Nadia, West Bengal, India
| | - Kamal Bauri
- Department of Chemistry, Raghunathpur College, Raghunathpur, 723133 Purulia, West Bengal, India
| | - Priyadarsi De
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246 Nadia, West Bengal, India
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11
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Sikdar P, Dip TM, Dhar AK, Bhattacharjee M, Hoque MS, Ali SB. Polyurethane (
PU
) based multifunctional materials: Emerging paradigm for functional textiles, smart, and biomedical applications. J Appl Polym Sci 2022. [DOI: 10.1002/app.52832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Partha Sikdar
- Department of Textiles, Merchandising and Interiors University of Georgia Athens Georgia USA
| | | | - Avik K. Dhar
- Department of Textiles, Merchandising and Interiors University of Georgia Athens Georgia USA
| | | | - Md. Saiful Hoque
- Department of Human Ecology University of Alberta Edmonton Alberta Canada
- Department of Textile Engineering Daffodil International University 102 Shukrabad, Dhanmondi Dhaka Bangladesh
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12
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Gan S, Wu W, Feng G, Wang Z, Liu B, Tang BZ. Size Optimization of Organic Nanoparticles with Aggregation-Induced Emission Characteristics for Improved ROS Generation and Photodynamic Cancer Cell Ablation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202242. [PMID: 35652497 DOI: 10.1002/smll.202202242] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 04/27/2022] [Indexed: 06/15/2023]
Abstract
Aggregation-induced emission (AIE) fluorogens provide new opportunities to promote efficient reactive oxygen species (ROS) production in aggregates, which represent the promising candidates to construct theranostic nanoparticles for photodynamic therapy (PDT), but the size effect has been rarely explored. Herein, a universal method to fabricate organic nanoparticles with controllable sizes is reported and it demonstrates that ≈45 nm is the optimal size of AIE nanoparticles for PDT. Different from conventional Ce6 nanoparticles which show largely reduced fluorescence and ROS generation with increasing nanoparticle size, AIE nanoparticles show gradually enhanced brightness and ROS generation upon increasing the sizes from 6 to ≈45 nm. Further increasing sizes could continue to intensify the nanoparticle's brightness at the expense of ROS production, with the optimal size for ROS generation being achieved at ≈45 nm. Both 2D monolayer cell and 3D multicellular spheroid experiments confirm that 45 nm AIE nanoparticles have the highest cellular uptake, the deepest penetration depth, and the best photodynamic killing effect. Such a study not only manifests the advantages of AIE photosensitizers, but also delivers the optimal size ranging for efficient PDT, which shall provide an attractive paradigm to guide the development of phototheranostic nanoparticles besides molecular design to further promote PDT applications.
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Affiliation(s)
- Shengming Gan
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, AIE Institute, South China University of Technology, Guangzhou, 510640, China
| | - Wenbo Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
- Institute of Molecular Aggregation Science, Tianjin University, Tianjin, 300072, China
| | - Guangxue Feng
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, AIE Institute, South China University of Technology, Guangzhou, 510640, China
| | - Zhiming Wang
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, AIE Institute, South China University of Technology, Guangzhou, 510640, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Ben Zhong Tang
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, AIE Institute, South China University of Technology, Guangzhou, 510640, China
- School of Science and Engineering, Shenzhen Institute of Molecular Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, 2001 Longxiang Boulevard, Longgang District, Shenzhen, Guangdong, 518172, China
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13
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Chen Y, Zhang M, Chen L, Pan M, Qin M, Guo Y, Zhang Y, Pan H, Zhou Y. Self-organization of zinc ions with a photosensitizer in vivo for enhanced antibiofilm and infected wound healing. NANOSCALE 2022; 14:7837-7848. [PMID: 35583070 DOI: 10.1039/d2nr01404a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Antimicrobial materials have been developed to combat bacteria more effectively and promote infected wound healing. However, it is widely recognized that the potential toxic effects and complexity of the synthesis process hinder their practical applications. In this work, we introduced a strategy for fighting bacteria and promoting wound healing caused by Staphylococcus epidermidis (S. epidermidis) infection by the self-combination of Zn2+ and clinically applied 5-aminolevulinic acid hydrochloride (ALA) in the microbes. The clinical ALA could target and accumulate in the biofilm as well as contribute to the low-dose Zn2+ penetrating the biofilm due to the self-organized formation of Zn protoporphyrin IX in situ. Upon exposing to a 635 nm laser, the self-combination of ALA and Zn2+ significantly inhibited and eliminated the S. epidermidis biofilm via a synergistic biofilm eradication mechanism that enhanced photodynamic inactivation and aggravated cell wall/membrane disruption. In addition, the combination of ALA and Zn2+ could accelerate wound repair and reduce inflammatory response without causing cytotoxicity. The proposed strategy in this study illustrates the clinical prospects of eradicating biofilms and repairing infected wounds and demonstrates good biocompatibility towards infectious diseases.
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Affiliation(s)
- Yan Chen
- Joint Centre of Translational Medicine, Department of Orthopaedics, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, P. R. China.
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang Province, 325035, P. R. China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang Province, 325001, P. R. China
| | - Min Zhang
- Joint Centre of Translational Medicine, Department of Orthopaedics, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, P. R. China.
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang Province, 325035, P. R. China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang Province, 325001, P. R. China
| | - Likai Chen
- Joint Centre of Translational Medicine, Department of Orthopaedics, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, P. R. China.
| | - Mengmeng Pan
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang Province, 325035, P. R. China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang Province, 325001, P. R. China
| | - Mingming Qin
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang Province, 325035, P. R. China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang Province, 325001, P. R. China
| | - Yanqiu Guo
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang Province, 325035, P. R. China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang Province, 325001, P. R. China
| | - Yaobo Zhang
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang Province, 325035, P. R. China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang Province, 325001, P. R. China
| | - Hao Pan
- Joint Centre of Translational Medicine, Department of Orthopaedics, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, P. R. China.
| | - Yunlong Zhou
- Joint Centre of Translational Medicine, Department of Orthopaedics, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, P. R. China.
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang Province, 325035, P. R. China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang Province, 325001, P. R. China
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14
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Zong TX, Silveira AP, Morais JAV, Sampaio MC, Muehlmann LA, Zhang J, Jiang CS, Liu SK. Recent Advances in Antimicrobial Nano-Drug Delivery Systems. NANOMATERIALS 2022; 12:nano12111855. [PMID: 35683711 PMCID: PMC9182179 DOI: 10.3390/nano12111855] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/28/2022] [Accepted: 05/26/2022] [Indexed: 11/16/2022]
Abstract
Infectious diseases are among the major health issues of the 21st century. The substantial use of antibiotics over the years has contributed to the dissemination of multidrug resistant bacteria. According to a recent report by the World Health Organization, antibacterial (ATB) drug resistance has been one of the biggest challenges, as well as the development of effective long-term ATBs. Since pathogens quickly adapt and evolve through several strategies, regular ATBs usually may result in temporary or noneffective treatments. Therefore, the demand for new therapies methods, such as nano-drug delivery systems (NDDS), has aroused huge interest due to its potentialities to improve the drug bioavailability and targeting efficiency, including liposomes, nanoemulsions, solid lipid nanoparticles, polymeric nanoparticles, metal nanoparticles, and others. Given the relevance of this subject, this review aims to summarize the progress of recent research in antibacterial therapeutic drugs supported by nanobiotechnological tools.
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Affiliation(s)
- Tong-Xin Zong
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (T.-X.Z.); (J.Z.)
| | - Ariane Pandolfo Silveira
- Institute of Biological Sciences, University of Brasília, Brasilia 70910900, Brazil; (A.P.S.); (J.A.V.M.); (M.C.S.)
| | | | - Marina Carvalho Sampaio
- Institute of Biological Sciences, University of Brasília, Brasilia 70910900, Brazil; (A.P.S.); (J.A.V.M.); (M.C.S.)
| | - Luis Alexandre Muehlmann
- Institute of Biological Sciences, University of Brasília, Brasilia 70910900, Brazil; (A.P.S.); (J.A.V.M.); (M.C.S.)
- Faculty of Ceilandia, University of Brasilia, Brasilia 72220900, Brazil
- Correspondence: (L.A.M.); (C.-S.J.); (S.-K.L.)
| | - Juan Zhang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (T.-X.Z.); (J.Z.)
| | - Cheng-Shi Jiang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (T.-X.Z.); (J.Z.)
- Correspondence: (L.A.M.); (C.-S.J.); (S.-K.L.)
| | - Shan-Kui Liu
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (T.-X.Z.); (J.Z.)
- Correspondence: (L.A.M.); (C.-S.J.); (S.-K.L.)
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15
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Wan P, Guo W, Duan Y, Deng M, Xiao C. Photosensitizer-Polypeptides Conjugate with Synergistic Antibacterial Efficacy. Macromol Biosci 2022; 22:e2200105. [PMID: 35526119 DOI: 10.1002/mabi.202200105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/23/2022] [Indexed: 11/08/2022]
Abstract
Recently, continuous emergence of resistant bacteria has appeared as one of the most serious threats to human health. Therefore, systematic exploration of new antibacterial materials is of guiding significance. In this study, a series of photosensitizer-polypeptides conjugate (PPa-cP) was readily synthesized through the simple ring-opening reactions to realize the synergistic antibacterial effects toward Staphylococcus aureus (S. aureus) and methicillin-resistant Staphylococcus aureus (MRSA) under light irradiation. Compared with free PPa, the cationic PPa-cP showed enhanced binding ability with the negative surface of S. aureus through electrostatic interaction, exhibiting effective antibacterial activity against both S. aureus and MRSA in vitro under light irradiation. Among the synthesized PPa-cP, PPa-cP5 with the degree of polymerization of 37 and modified with 1-methylimidazole side group exhibited the best antibacterial activity with a minimum inhibitory concentration (MIC) value of 2 μM without light irradiation and 0.25 μM with light irradiation. Moreover, PPa-cP5 showed good hemocompatibility. The above-mentioned results elucidate that the positively charged PPa-cP5 could significantly increase the efficiency of photodynamic therapy and effectively eradicate S. aureus biofilm due to its potent penetration ability into S. aureus biofilms. Overall, the present study establishes an efficient strategy for treatment of S. aureus and S. aureus biofilm infections. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Pengqi Wan
- Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China.,Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Wei Guo
- Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China.,Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Yuxiu Duan
- Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China.,Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Mingxiao Deng
- Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun, 130022, P. R. China
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16
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Guo K, Zhang M, Cai J, Ma Z, Fang Z, Zhou H, Chen J, Gao M, Wang L. Peptide-Engineered AIE Nanofibers with Excellent and Precisely Adjustable Antibacterial Activity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2108030. [PMID: 35307954 DOI: 10.1002/smll.202108030] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/27/2022] [Indexed: 06/14/2023]
Abstract
Photosensitizers with aggregation-induced emission properties (AIEgens) can produce reactive oxygen species (ROS) under irradiation, showing great potential in the antibacterial field. However, due to the limited molecular skeletons, the development of AIEgens with precisely adjustable antibacterial activity is still a daunting challenge. Herein, a series of AIE nanofibers (AIE-NFs) based on the AIEgen of DTPM as the inner core and rationally designed peptides as bacterial recognition ligands (e.g., antimicrobial peptide (AMP) HHC36, ditryptophan, polyarginine, and polylysine) is developed. These AIE-NFs show precisely adjustable antibacterial behaviors simply by changing the decorated peptides, which can regulate the aggregation and inhibition of different bacteria. By mechanistic analysis, it is demonstrated that this effect can be attributed to the synergistic antibacterial activities of the ROS and the peptides. It is noteworthy that the optimized AIE-NFs, NFs-K18, can efficiently aggregate bacteria to cluster and kill four types of clinical bacteria under irradiation in vitro, inhibit the infection of methicillin-resistant Staphylococcus aureus (MRSA) and promote wound healing in vivo. To the authors' knowledge, this is the first report of AIE-NFs with precisely adjustable antibacterial activity, providing new opportunities for photodynamic therapy (PDT) treatment of infection.
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Affiliation(s)
- Kunzhong Guo
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Minjie Zhang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Junyi Cai
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Zunwei Ma
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Zhou Fang
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Haiyan Zhou
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510641, China
| | - Junjian Chen
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510641, China
| | - Meng Gao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Lin Wang
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
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17
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Zhang Z, Kang M, Tan H, Song N, Li M, Xiao P, Yan D, Zhang L, Wang D, Tang BZ. The fast-growing field of photo-driven theranostics based on aggregation-induced emission. Chem Soc Rev 2022; 51:1983-2030. [PMID: 35226010 DOI: 10.1039/d1cs01138c] [Citation(s) in RCA: 126] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Photo-driven theranostics, also known as phototheranostics, relying on the diverse excited-state energy conversions of theranostic agents upon photoexcitation represents a significant branch of theranostics, which ingeniously integrate diagnostic imaging and therapeutic interventions into a single formulation. The combined merits of photoexcitation and theranostics endow photo-driven theranostics with numerous superior features. The applications of aggregation-induced emission luminogens (AIEgens), a particular category of fluorophores, in the field of photo-driven theranostics have been intensively studied by virtue of their versatile advantageous merits of favorable biocompatibility, tuneable photophysical properties, unique aggregation-enhanced theranostic (AET) features, ideal AET-favored on-site activation ability and ready construction of one-for-all multimodal theranostics. This review summarised the significant achievements of photo-driven theranostics based on AIEgens, which were detailedly elaborated and classified by their diverse theranostic modalities into three groups: fluorescence imaging-guided photodynamic therapy, photoacoustic imaging-guided photothermal therapy, and multi-modality theranostics. Particularly, the tremendous advantages and individual design strategies of AIEgens in pursuit of high-performance photosensitizing output, high photothermal conversion and multimodal function capability by adjusting the excited-state energy dissipation pathways are emphasized in each section. In addition to highlighting AIEgens as promising templates for modulating energy dissipation in the application of photo-driven theranostics, current challenges and opportunities in this field are also discussed.
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Affiliation(s)
- Zhijun Zhang
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Miaomiao Kang
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Hui Tan
- Pneumology Department, Shenzhen Children's Hospital, Shenzhen 518026, China
| | - Nan Song
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Meng Li
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Peihong Xiao
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Dingyuan Yan
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Liping Zhang
- Pneumology Department, Shenzhen Children's Hospital, Shenzhen 518026, 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 Material Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Ben Zhong Tang
- Shenzhen Institute of Aggregate Science and Technology, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, 2001 Longxiang Boulevard, Longgang District, Shenzhen City, Guangdong 518172, China.
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18
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Wang S, Ma L, Wang S, Wang Y, Liu G, Wang H. White light-induced AIEgen polyurethane films containing Schiff base copper( ii) complexes for synergistic chemo/photodynamic antibacterial therapy. Polym Chem 2022. [DOI: 10.1039/d2py00061j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polyurethane films containing AIEgens and copper complexes can act as a potential antibacterial agent for multi-mode combined antibacterial therapy.
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Affiliation(s)
- Shiyu Wang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China
| | - Li Ma
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China
| | - Shuang Wang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China
- The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, PR China
| | - Yazhou Wang
- Sinopec, Shengli Oilfield, Chunliang Oil Prod Plant, Dongying 256600, Shangdong, China
| | - Gongyan Liu
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China
- The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, PR China
| | - Haibo Wang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China
- The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, PR China
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19
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Photosensitizers with Aggregation-induced Emission and Their Biomedical Applications. ENGINEERED REGENERATION 2022. [DOI: 10.1016/j.engreg.2022.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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20
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Han H, Li S, Zhong Y, Huang Y, Wang K, Jin Q, Ji J, Yao K. Emerging pro-drug and nano-drug strategies for gemcitabine-based cancer therapy. Asian J Pharm Sci 2022; 17:35-52. [PMID: 35261643 PMCID: PMC8888143 DOI: 10.1016/j.ajps.2021.06.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/19/2021] [Accepted: 06/15/2021] [Indexed: 12/20/2022] Open
Abstract
Gemcitabine has been extensively applied in treating various solid tumors. Nonetheless, the clinical performance of gemcitabine is severely restricted by its unsatisfactory pharmacokinetic parameters and easy deactivation mainly because of its rapid deamination, deficiencies in deoxycytidine kinase (DCK), and alterations in nucleoside transporter. On this account, repeated injections with a high concentration of gemcitabine are adopted, leading to severe systemic toxicity to healthy cells. Accordingly, it is highly crucial to fabricate efficient gemcitabine delivery systems to obtain improved therapeutic efficacy of gemcitabine. A large number of gemcitabine pro-drugs were synthesized by chemical modification of gemcitabine to improve its biostability and bioavailability. Besides, gemcitabine-loaded nano-drugs were prepared to improve the delivery efficiency. In this review article, we introduced different strategies for improving the therapeutic performance of gemcitabine by the fabrication of pro-drugs and nano-drugs. We hope this review will provide new insight into the rational design of gemcitabine-based delivery strategies for enhanced cancer therapy.
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Affiliation(s)
- Haijie Han
- Eye Center, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Su Li
- Eye Center, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Yueyang Zhong
- Eye Center, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Yue Huang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Kai Wang
- Eye Center, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Qiao Jin
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ke Yao
- Eye Center, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
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21
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Chen X, Han H, Tang Z, Jin Q, Ji J. Aggregation-Induced Emission-Based Platforms for the Treatment of Bacteria, Fungi, and Viruses. Adv Healthc Mater 2021; 10:e2100736. [PMID: 34190431 DOI: 10.1002/adhm.202100736] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/01/2021] [Indexed: 12/19/2022]
Abstract
The prevention and control of pathogenic bacteria, fungi, and viruses is a herculean task for all the countries since they greatly threaten global public health. Rapid detection and effective elimination of these pathogens is crucial for the treatment of related diseases. It is urgently demanded to develop new diagnostic and therapeutic strategies to combat bacteria, fungi, and viruses-induced infections. The emergence of aggregation-induced emission (AIE) luminogens (AIEgens) is a revolutionary breakthrough for the treatment of many diseases, including pathogenic infections. In this review, the main focus is on the applications of AIEgens for theranostic treatment of pathogenic bacteria, fungi, and viruses. Due to the AIE characteristic, AIEgens are promising fluorescent probes for the detection of bacteria, fungi, and viruses with excellent sensitivity and photostability. Moreover, AIEgen-based theranostic platforms can be fabricated by introducing bactericidal moieties or designing AIE photosensitizers and AIE photothermal agents. The current strategies and ongoing developments of AIEgens for the treatment of pathogenic bacteria, fungi, and viruses will be discussed in detail.
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Affiliation(s)
- Xiaohui Chen
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education Department of Polymer Science and Engineering Zhejiang University Hangzhou Zhejiang Province 310027 P. R. China
| | - Haijie Han
- Eye Center the Second Affiliated Hospital School of Medicine Zhejiang University 88 Jiefang Road Hangzhou 310009 P. R. China
| | - Zhe Tang
- Department of Surgery The Fourth Affiliated Hospital Zhejiang University School of Medicine Yiwu 322000 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 Province 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 Province 310027 P. R. China
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22
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Youf R, Müller M, Balasini A, Thétiot F, Müller M, Hascoët A, Jonas U, Schönherr H, Lemercier G, Montier T, Le Gall T. Antimicrobial Photodynamic Therapy: Latest Developments with a Focus on Combinatory Strategies. Pharmaceutics 2021; 13:1995. [PMID: 34959277 PMCID: PMC8705969 DOI: 10.3390/pharmaceutics13121995] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial photodynamic therapy (aPDT) has become a fundamental tool in modern therapeutics, notably due to the expanding versatility of photosensitizers (PSs) and the numerous possibilities to combine aPDT with other antimicrobial treatments to combat localized infections. After revisiting the basic principles of aPDT, this review first highlights the current state of the art of curative or preventive aPDT applications with relevant clinical trials. In addition, the most recent developments in photochemistry and photophysics as well as advanced carrier systems in the context of aPDT are provided, with a focus on the latest generations of efficient and versatile PSs and the progress towards hybrid-multicomponent systems. In particular, deeper insight into combinatory aPDT approaches is afforded, involving non-radiative or other light-based modalities. Selected aPDT perspectives are outlined, pointing out new strategies to target and treat microorganisms. Finally, the review works out the evolution of the conceptually simple PDT methodology towards a much more sophisticated, integrated, and innovative technology as an important element of potent antimicrobial strategies.
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Affiliation(s)
- Raphaëlle Youf
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
| | - Max Müller
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Ali Balasini
- Macromolecular Chemistry, Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (A.B.); (U.J.)
| | - Franck Thétiot
- Unité Mixte de Recherche (UMR), Centre National de la Recherche Scientifique (CNRS) 6521, Université de Brest (UBO), CS 93837, 29238 Brest, France
| | - Mareike Müller
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Alizé Hascoët
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
| | - Ulrich Jonas
- Macromolecular Chemistry, Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (A.B.); (U.J.)
| | - Holger Schönherr
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Gilles Lemercier
- Coordination Chemistry Team, Unité Mixte de Recherche (UMR), Centre National de la Recherche Scientifique (CNRS) 7312, Institut de Chimie Moléculaire de Reims (ICMR), Université de Reims Champagne-Ardenne, BP 1039, CEDEX 2, 51687 Reims, France
| | - Tristan Montier
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
- CHRU de Brest, Service de Génétique Médicale et de Biologie de la Reproduction, Centre de Référence des Maladies Rares Maladies Neuromusculaires, 29200 Brest, France
| | - Tony Le Gall
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
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23
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Lan X, Guo Q, Liu Z, Liu K, He J, Li R, Sun H, Yao W, Wang L. Facile preparation of nanomicelles using polymyxin E for enhanced antitumor effects. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 33:329-341. [PMID: 34606738 DOI: 10.1080/09205063.2021.1989568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Chemotherapy is a major cancer treatment that uses antitumor drugs to kill fast-growing cancer cells. Many kinds of drug carriers have been developed to deliver and achieve controlled release of small-molecule therapeutic agents. However, many therapeutic agent carriers need complex preparation process. The natural polypeptides may serve as proper drug carriers. More specifically, polymyxin E (PE) is a kind of natural antibiotic lipopeptides. It is commonly used to treat infections caused by multidrug-resistant Gram-negative bacteria. Herein, we present a facile method to prepare DOX-loaded polymyxin E micelles (PE-DOX micelles) to enhance the therapeutic effect of anticancer drug doxorubicin (DOX). The hydrodynamic sizes and zeta potential of the prepared nanomedicine (PE-DOX micelles) were 142.0 nm and 6.47 mV, respectively. The release of DOX from PE-DOX micelles was faster at pH 5.5 than that at pH 7.4. Furthermore, PE exhibited negligible cytotoxicity to A549 cells and HeLa cells within 50 μg/mL, while PE-DOX micelles caused higher cytotoxicity than that of free DOX. Moreover, the intravenously injected PE-DOX micelles showed good biocompatibility and obvious antitumor effect after 14 days' treatment in vivo. The PE-DOX micelles have great potential to be used as anticancer agent in the future.
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Affiliation(s)
- Xifa Lan
- First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Quanling Guo
- Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, China
| | - Zhiwei Liu
- Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, China
| | - Kai Liu
- Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, China
| | - Jinfeng He
- Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, China
| | - Ruyu Li
- Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, China
| | | | - Wenxiu Yao
- First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Longgang Wang
- Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, China
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24
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Zhou Y, Deng W, Mo M, Luo D, Liu H, Jiang Y, Chen W, Xu C. Stimuli-Responsive Nanoplatform-Assisted Photodynamic Therapy Against Bacterial Infections. Front Med (Lausanne) 2021; 8:729300. [PMID: 34604266 PMCID: PMC8482315 DOI: 10.3389/fmed.2021.729300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/13/2021] [Indexed: 11/17/2022] Open
Abstract
Bacterial infections are common diseases causing tremendous deaths in clinical settings. It has been a big challenge to human beings because of the antibiotics abuse and the newly emerging microbes. Photodynamic therapy (PDT) is a reactive oxygen species-based therapeutic technique through light-activated photosensitizer (PS). Recent studies have highlighted the potential of PDT as an alternative method of antibacterial treatment for its broad applicability and high efficiency. However, there are some shortcomings due to the low selectivity and specificity of PS. Growing evidence has shown that drug delivery nanoplatforms have unique advantages in enhancing therapeutic efficacy of drugs. Particularly, stimuli-responsive nanoplatforms, as a promising delivery system, provide great opportunities for the effective delivery of PS. In the present mini-review, we briefly introduced the unique microenvironment in bacterial infection tissues and the application of PDT on bacterial infections. Then we review the stimuli-responsive nanoplatforms (including pH-, enzymes-, redox-, magnetic-, and electric-) used in PDT against bacterial infections. Lastly, some perspectives have also been proposed to further promote the future developments of antibacterial PDT.
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Affiliation(s)
- You Zhou
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & National Medical Products Administration Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Wenmin Deng
- Department of Clinical Pharmacy, The People's Hospital of Dianbai District, Maoming, China
| | - Mulan Mo
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & National Medical Products Administration Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Dexu Luo
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & National Medical Products Administration Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Houhe Liu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & National Medical Products Administration Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yuan Jiang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & National Medical Products Administration Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,Department of Rehabilitation Medicine, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Wenjie Chen
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & National Medical Products Administration Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,State Key Laboratory of Respiratory Disease, Guangdong-Hongkong-Macao Joint Laboratory of Respiratory Infectious Disease, Guangzhou, China.,Sydney Vital Translational Cancer Research Centre, Sydney, NSW, Australia
| | - Chuanshan Xu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & National Medical Products Administration Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
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25
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Kuo SY, Chen PC, Huang KT, Huang CJ. Bio-inspired zwitterionic polymeric chelating assembly for treatment of copper-induced cytotoxicity and hemolysis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112367. [PMID: 34579886 DOI: 10.1016/j.msec.2021.112367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 08/04/2021] [Accepted: 08/09/2021] [Indexed: 11/18/2022]
Abstract
We developed a hemocompatible, bio-inspired, multivalent, polymeric-chelating assembly based on the poly(2-methacryloyloxyethyl phosphorylcholine)-b-poly(serinyl acrylate) (PMPC-b-PserA) zwitterionic diblock copolymer. Functional PMPC-b-PserA was synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization to catch and encapsulate free copper ions (Cu2+) in a solution. PMPC with an identical polar group to phospholipids exhibits high hydrophilicity and fouling resistance against non-specific adsorption, and inertness to the metal ions. On the other hand, PserA with pendant groups of amino acids possesses a strong capability to react with Cu2+ by coordination interaction. Therefore, when PMPC-b-PserA was brought into contact with Cu2+, a hydrophobic core with multiple coordination "bridges" between polymers and Cu2+ was formed, leading to self-assembly of core-shell polymer-metal nanoparticles. As a result, free Cu2+ ions can be removed from the solution to prevent damage to cells and tissues. The synthesis and chemical structure of PMPC-b-PserA were characterized, and the formation of self-assembled polymer-Cu2+ nanoparticles and colloidal stability were analyzed. More importantly, the detoxification of PMPC-b-PserA in presence of Cu2+ with fibroblast cells was demonstrated by increased cell viability >80%. In addition, the hemolysis, which occurred due to disruption of RBC membranes by free Cu2+, was effectively suppressed by adding PMPC-b-PserA. The bio-inspired and biocompatible chelating agent of PMPC-b-PserA provides a new treatment approach to encapsulate and detoxify heavy metals in complex media for chelation therapy.
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Affiliation(s)
- Shing-Yu Kuo
- Department of Biomedical Sciences and Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan
| | - Pin-Chun Chen
- Department of Biomedical Sciences and Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan
| | - Kang-Ting Huang
- Department of Biomedical Sciences and Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan; Department of Chemical & Materials Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan
| | - Chun-Jen Huang
- Department of Chemical & Materials Engineering, National Central University, Jhong-Li, Taoyuan 320, Taiwan; R&D Center for Membrane Technology, Chung Yuan Christian University, 200 Chung Pei Rd., Chung-Li City 32023, Taiwan; NCU-DSM Research Center, National Central University, Jhong-Li, Taoyuan 320, Taiwan.
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26
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Dai X, Ma J, Zhang Q, Xu Q, Yang L, Gao F. Simultaneous inhibition of planktonic and biofilm bacteria by self-adapting semiconducting polymer dots. J Mater Chem B 2021; 9:6658-6667. [PMID: 34378630 DOI: 10.1039/d1tb01070k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biofilm infections present an enormous challenge in today's healthcare settings. Currently, pH-switchable antibacterial agents are being developed to eradicate biofilms. However, most pH-switchable antibacterial agents are less lethal to planktonic bacteria under neutral conditions, and cannot prevent the dispersed bacteria from seeding acute infection again. Herein, this work reports the applications of semiconducting polymer dots (Pdots) with a double adhesion mechanism in imaging and inhibiting bacteria inside (weak acidic conditions) and outside (neutral conditions) biofilms. Clew-like Pdots were prepared by covalently linking phenylboronic acid (PBA) and pH-responsive naphthalimide (NA) ramification in semiconducting polymers. Under neutral conditions, the Pdots combined with bacteria through the formation of boronate esters between PBA and diols. Under weakly acidic conditions, the partial borate bond fractured, and the Pdots adhered onto the bacterial surface through the positively charged NA in Pdots. Furthermore, the Pdots display negligible toxicity to mammalian cells and tissues. More importantly, the Pdots can selectively damage the bacterial membrane and inhibit bacteria in vivo. This work highlights the feasibility of using semiconducting Pdots to image and inhibit bacteria inside and outside biofilms, which represents a highly effective strategy to cope with biofilm infections.
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Affiliation(s)
- Xiaomei Dai
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, Laboratory of Biosensing and Bioimaging (LOBAB), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China.
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27
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Ngan Giang N, Kim SG, In I, Park SY. Real-Time Wireless Monitoring of Cell Proliferation and Detachment Based on pH-Responsive Conductive Polymer Dots. Anal Chem 2021; 93:8638-8646. [PMID: 34110775 DOI: 10.1021/acs.analchem.1c01778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In situ wireless monitoring for cell proliferation and detachment kinetics was conducted using pH-responsive zwitterionic polymer dots (Z-PDs), based on changes in electrochemical signals derived from Z-PD-coated substrates via the interaction of charges transferred between Z-PDs and cells. Z-PD-coated substrates were found to be a potent means to monitor and manipulate cell adhesion and detachment because of their high sensitivity over a wide range of pH conditions, and modification of the coated substrates was confirmed using a wireless system. At neutral pH, Z-PD-coated wireless sensors exhibited π-π stacking involving aromatic rings with hydrophobic interactions, thereby promoting cell proliferation; consequently, an increase in the measured resistance was observed. In contrast, Z-PD-coated substrates triggered by acidic and basic conditions promoted cell detachment, which induced an increase in the resistance compared with Z-PD substrates at pH 6.8, as a result of charges transferred to support Z-PD internalization through cell membranes after detachment. Therefore, as a wireless biosensor with excellent pH responsiveness that facilitates cell proliferation and detachment and whose electrochemical signals could be additionally acquired via a smartphone, Z-PD biosensors demonstrated a more favorable approach for monitoring cell-surface interactions than conventional optically based methods.
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Affiliation(s)
- Nguyen Ngan Giang
- Department of IT and Energy Convergence (BK21 FOUR), Korea National University of Transportation, Chungju 380-702, Republic of Korea
| | - Seul Gi Kim
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
| | - Insik In
- Department of IT and Energy Convergence (BK21 FOUR), Korea National University of Transportation, Chungju 380-702, Republic of Korea.,Department of Polymer Science and Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
| | - Sung Young Park
- Department of IT and Energy Convergence (BK21 FOUR), Korea National University of Transportation, Chungju 380-702, Republic of Korea.,Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
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28
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Liu S, Feng G, Tang BZ, Liu B. Recent advances of AIE light-up probes for photodynamic therapy. Chem Sci 2021; 12:6488-6506. [PMID: 34040725 PMCID: PMC8132949 DOI: 10.1039/d1sc00045d] [Citation(s) in RCA: 161] [Impact Index Per Article: 53.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 02/22/2021] [Indexed: 12/15/2022] Open
Abstract
As a new non-invasive treatment method, photodynamic therapy (PDT) has attracted great attention in biomedical applications. The advantages of possessing fluorescence for photosensitizers have made it possible to combine imaging and diagnosis together with PDT. The unique features of aggregation-induced emission (AIE) fluorogens provide new opportunities for facile design of light-up probes with high signal-to-noise ratios and improved theranostic accuracy and efficacy for image-guided PDT. In this review, we summarize the recent advances of AIE light-up probes for PDT. The strategies and principles to design AIE photosensitizers and light-up probes are firstly introduced. The application of AIE light-up probes in photodynamic antitumor and antibacterial applications is further elaborated in detail, from binding/targeting-mediated, reaction-mediated, and external stimuli-mediated light-up aspects. The challenges and future perspectives of AIE light-up probes in the PDT field are also presented with the hope to encourage more promising developments of AIE materials for phototheranostic applications and translational research.
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Affiliation(s)
- Shanshan Liu
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, AIE Institute, School of Materials Science and Engineering, South China University of Technology Guangzhou 510640 China
| | - Guangxue Feng
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, AIE Institute, School of Materials Science and Engineering, South China University of Technology Guangzhou 510640 China
| | - Ben Zhong Tang
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, AIE Institute, School of Materials Science and Engineering, South China University of Technology Guangzhou 510640 China
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST) Clear Water Bay Kowloon Hong Kong China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
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29
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Antimicrobial nanomedicine for ocular bacterial and fungal infection. Drug Deliv Transl Res 2021; 11:1352-1375. [PMID: 33840082 DOI: 10.1007/s13346-021-00966-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2021] [Indexed: 12/13/2022]
Abstract
Ocular infection induced by bacteria and fungi is a major cause of visual impairment and blindness. Topical administration of antibiotics remains the first-line treatment, as effective eradication of pathogens is the core of the anti-infection strategy. Whereas, eye drops lack efficiency and have relatively low bioavailability. Intraocular injection may cause concurrent ocular damage and secondary infection. In addition, antibiotic-based management can be limited by the low sensitivity to multidrug-resistant bacteria. Nanomedicine is proposed as a prospective, effective, and noninvasive platform to mediate ocular delivery and combat pathogen or even resistant strains. Nanomedicine can not only carry antimicrobial agents to fight against pathogens but also directly active microbicidal capability, killing pathogens. More importantly, by modification, nanomedicine can achieve enhanced residence time and release time on the cornea, and easy penetration through corneal tissues into anterior and posterior segments of the eye, thus improving the therapeutic effect for ocular infection. In this review, several categories of antimicrobial nanomedicine are systematically discussed, where the efficiency and possibility of further embellishment and improvement to adapt to clinical use are also investigated. All in all, novel antimicrobial nanomedicine provides potent and prospective ways to manage severe and refractory ocular infections.
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30
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Li Y, Zhou Y, Yao Y, Gao T, Yan P, Li H. White-light emission from the quadruple-stranded dinuclear Eu( iii) helicate decorated with pendent tetraphenylethylene (TPE). NEW J CHEM 2021. [DOI: 10.1039/d1nj00700a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The hybrid film doped with a quadruple-stranded Eu3+ helicate displayed tuneable emission and white light.
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Affiliation(s)
- Yuying Li
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- P. R. China
- School of Chemistry and Materials Science
- Heilongjiang University
| | - Yanyan Zhou
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- P. R. China
- School of Chemistry and Materials Science
- Heilongjiang University
| | - Yuan Yao
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- P. R. China
- School of Chemistry and Materials Science
- Heilongjiang University
| | - Ting Gao
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- P. R. China
- School of Chemistry and Materials Science
- Heilongjiang University
| | - Pengfei Yan
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- P. R. China
- School of Chemistry and Materials Science
- Heilongjiang University
| | - Hongfeng Li
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- P. R. China
- School of Chemistry and Materials Science
- Heilongjiang University
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