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Xu K, Zhang P, Zhang Y, Zhang Y, Li L, Shi Y, Wen X, Xu Y. MoO xNWs with mechanical damage - oriented synergistic photothermal / photodynamic therapy for highly effective treating wound infections. J Colloid Interface Sci 2024; 660:235-245. [PMID: 38244492 DOI: 10.1016/j.jcis.2024.01.025] [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: 10/15/2023] [Revised: 12/29/2023] [Accepted: 01/04/2024] [Indexed: 01/22/2024]
Abstract
Reactive oxygen species (ROS)-based therapy has emerged as a promising antibacterial strategy. However, it faces the limitations of uncontrollable space-time release and excessive lipid peroxidation, which may lead to a series of metabolic disorders and decreased immune function. In this study, mechanical damage by molybdenum oxide nanowires (MoOxNWs) is introduced as a synergistic factor to enhance the photothermal and photodynamic effects for controllable and efficient antibacterial therapy. Through their sharp ends, the nanowires can effectively pierce and damage the bacterial cells, thus facilitating the entry of externally generated ROS into the cells. The ROS are generated via photodynamic effect of the nanowires under a mere 5 min of near-infrared light irradiation. This approach enhances the photothermal (by 27.3 %) and photodynamic properties of ROS generation. MoOxNWs (100 μg·mL-1) achieve sterilisation rates of 97.67 % for extended-spectrum β-lactamase-producing E. coli and 96.34 % for methicillin-resistant Staphylococcus aureus, which are comparable or even exceeding the efficacy of most MoOx-based antibacterial agents. Moreover, they exhibit good biocompatibility and low in vivo toxicity.
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Affiliation(s)
- Kaikai Xu
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China
| | - Pengfei Zhang
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China; Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yan Zhang
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China
| | - Yanfang Zhang
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China
| | - Limin Li
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China
| | - Yanfeng Shi
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China
| | - Xueyun Wen
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China
| | - Yuanhong Xu
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China.
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Birhanu Hayilesilassie R, Gemta AB, Maremi FT, Getahun Kumela A, Gudishe K, Dana BD. Detection and photothermal inactivation of Gram-positive and Gram-negative bloodstream bacteria using photonic crystal biosensor and plasmonic core-shell. RSC Adv 2024; 14:11594-11603. [PMID: 38601705 PMCID: PMC11004602 DOI: 10.1039/d4ra01802h] [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: 03/08/2024] [Accepted: 04/02/2024] [Indexed: 04/12/2024] Open
Abstract
Plasmonics and core-shell nanomaterials hold great potential to develop pharmaceuticals and medical equipment due to their eco-friendly and cost effective fabrication procedures. Despite these advancements, combating drug-resistant bacterial infections remains a global challenge. Therefore, this study aims to introduce a tailored theoretical framework for a one-dimensional (1D) photonic crystal biosensor (PCB) composed of (ZrO2/GaN)N/defect layer/(ZrO2/GaN)N, designed to detect Gram-positive and Gram-negative bloodstream bacteria employing the transfer matrix method (TMM). In addition, using the finite difference methods (FDM), the photothermal inactivation of bloodstream bacteria with plasmonic core-shell structures (FeO@AuBiS2) was explored using key factors such as light absorption, heat generation, and thermal diffusion. By incorporating six dielectric layers and contaminated blood into the proposed PCB, a maximum sensitivity of 562 nm per RIU was recorded, and using rod-shaped plasmonic core-shell structures, 5.8 nm-1 light absorption capacity and 152 K change in temperature were achieved. The maximum detection sensitivity, light absorption, heat conduction and heat convection capacity of the proposed 1D PCB and plasmonic core-shell show an effective approach to combating drug-resistant bacteria.
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Affiliation(s)
- Ruth Birhanu Hayilesilassie
- Department of Applied Physics, School of Applied Natural Sciences, Adama Science and Technology University P.O.Box 1888 Adama Ethiopia
| | - Abebe Belay Gemta
- Department of Applied Physics, School of Applied Natural Sciences, Adama Science and Technology University P.O.Box 1888 Adama Ethiopia
| | - Fekadu Tolessa Maremi
- Department of Applied Physics, School of Applied Natural Sciences, Adama Science and Technology University P.O.Box 1888 Adama Ethiopia
| | - Alemayehu Getahun Kumela
- Department of Applied Physics, College of Natural and Computational Sciences, Mekdela Amba University P.O.Box 032 Tullu Awulia Ethiopia
| | - Kusse Gudishe
- Department of Applied Physics, College of Natural and Computational Sciences, Jinka University Jinka Ethiopia
| | - Bereket Delga Dana
- Department of Applied Physics, College of Natural and Computational Sciences, Jinka University Jinka Ethiopia
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Huang X, Li L, Chen Z, Yu H, You X, Kong N, Tao W, Zhou X, Huang J. Nanomedicine for the Detection and Treatment of Ocular Bacterial Infections. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302431. [PMID: 37231939 DOI: 10.1002/adma.202302431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/15/2023] [Indexed: 05/27/2023]
Abstract
Ocular bacterial infection is a prevalent cause of blindness worldwide, with substantial consequences for normal human life. Traditional treatments for ocular bacterial infections areless effective, necessitating the development of novel techniques to enable accurate diagnosis, precise drug delivery, and effective treatment alternatives. With the rapid advancement of nanoscience and biomedicine, increasing emphasis has been placed on multifunctional nanosystems to overcome the challenges posed by ocular bacterial infections. Given the advantages of nanotechnology in the biomedical industry, it can be utilized to diagnose ocular bacterial infections, administer medications, and treat them. In this review, the recent advancements in nanosystems for the detection and treatment of ocular bacterial infections are discussed; this includes the latest application scenarios of nanomaterials for ocular bacterial infections, in addition to the impact of their essential characteristics on bioavailability, tissue permeability, and inflammatory microenvironment. Through an in-depth investigation into the effect of sophisticated ocular barriers, antibacterial drug formulations, and ocular metabolism on drug delivery systems, this review highlights the challenges faced by ophthalmic medicine and encourages basic research and future clinical transformation based on ophthalmic antibacterial nanomedicine.
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Affiliation(s)
- Xiaomin Huang
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University; Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200030, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, 200030, China
- Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Luoyuan Li
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University; Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200030, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, 200030, China
- The Eighth Affiliated Hospital Sun Yat-sen University, Shenzhen, Guangdong, 518033, P. R. China
| | - Zhongxing Chen
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University; Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200030, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, 200030, China
| | - Haoyu Yu
- The Eighth Affiliated Hospital Sun Yat-sen University, Shenzhen, Guangdong, 518033, P. R. China
| | - Xinru You
- Center for Nanomedicine and Department of Anesthesiology Brigham and Women's Hospital Harvard Medical School, Boston, MA, 02115, USA
| | - Na Kong
- Center for Nanomedicine and Department of Anesthesiology Brigham and Women's Hospital Harvard Medical School, Boston, MA, 02115, USA
| | - Wei Tao
- Center for Nanomedicine and Department of Anesthesiology Brigham and Women's Hospital Harvard Medical School, Boston, MA, 02115, USA
| | - Xingtao Zhou
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University; Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200030, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, 200030, China
| | - Jinhai Huang
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University; Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200030, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, 200030, China
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Kumara SPSNBS, Senevirathne SWMAI, Mathew A, Bray L, Mirkhalaf M, Yarlagadda PKDV. Progress in Nanostructured Mechano-Bactericidal Polymeric Surfaces for Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2799. [PMID: 37887949 PMCID: PMC10609396 DOI: 10.3390/nano13202799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/16/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023]
Abstract
Bacterial infections and antibiotic resistance remain significant contributors to morbidity and mortality worldwide. Despite recent advances in biomedical research, a substantial number of medical devices and implants continue to be plagued by bacterial colonisation, resulting in severe consequences, including fatalities. The development of nanostructured surfaces with mechano-bactericidal properties has emerged as a promising solution to this problem. These surfaces employ a mechanical rupturing mechanism to lyse bacterial cells, effectively halting subsequent biofilm formation on various materials and, ultimately, thwarting bacterial infections. This review delves into the prevailing research progress within the realm of nanostructured mechano-bactericidal polymeric surfaces. It also investigates the diverse fabrication methods for developing nanostructured polymeric surfaces with mechano-bactericidal properties. We then discuss the significant challenges associated with each approach and identify research gaps that warrant exploration in future studies, emphasizing the potential for polymeric implants to leverage their distinct physical, chemical, and mechanical properties over traditional materials like metals.
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Affiliation(s)
- S. P. S. N. Buddhika Sampath Kumara
- School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia; (S.P.S.N.B.S.K.); (S.W.M.A.I.S.); (A.M.); (L.B.)
- Australian Research Council Training Centre for Multiscale 3D Imaging, Modelling, and Manufacturing, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
| | - S. W. M. Amal Ishantha Senevirathne
- School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia; (S.P.S.N.B.S.K.); (S.W.M.A.I.S.); (A.M.); (L.B.)
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
| | - Asha Mathew
- School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia; (S.P.S.N.B.S.K.); (S.W.M.A.I.S.); (A.M.); (L.B.)
- School of Engineering, University of Southern Queensland, Springfield, QLD 4300, Australia
| | - Laura Bray
- School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia; (S.P.S.N.B.S.K.); (S.W.M.A.I.S.); (A.M.); (L.B.)
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
| | - Mohammad Mirkhalaf
- School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia; (S.P.S.N.B.S.K.); (S.W.M.A.I.S.); (A.M.); (L.B.)
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- Centre for Materials Science, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
| | - Prasad K. D. V. Yarlagadda
- School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia; (S.P.S.N.B.S.K.); (S.W.M.A.I.S.); (A.M.); (L.B.)
- Australian Research Council Training Centre for Multiscale 3D Imaging, Modelling, and Manufacturing, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- School of Engineering, University of Southern Queensland, Springfield, QLD 4300, Australia
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5
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Zhao L, Liu T, Li X, Cui Q, Wang X, Song K, Ge D, Li W. Study of Finite Element Simulation on the Mechano-Bactericidal Mechanism of Hierarchical Nanostructure Arrays. ACS Biomater Sci Eng 2023; 9:4770-4780. [PMID: 37503882 DOI: 10.1021/acsbiomaterials.3c00633] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Biomimetic nanostructures with bactericidal performance have become the research focus in constructing sterilization surfaces, but the mechano-bactericidal mechanism is still not fully understood, especially for the hierarchical nanostructure arrays with different heights. Herein, the interaction between Escherichia coli cells and nanostructure arrays was simulated by finite element, and the initial rupture points, i.e., critical action sites, of bacterial cells and the effects of nanostructure geometries on the cell rupture speed were analyzed based on the mechano-response of Escherichia coli cells on flat (identical heights) and hierarchical nanostructure arrays. The critical action sites of bacterial cells on nanostructure arrays are all at the three-phase junction zone of cell-liquid-nanostructure, but they are slightly shifted by the height difference ΔH of nanostructures on hierarchical nanopillar (NP)/nanosheet (NS) arrays, where the NP is higher than the NS. When ΔH < 20 nm, the site nears the NS corners, and when ΔH ≥ 20 nm, the site is consistent with that of the NP/NP array, i.e., the site locates at the three-phase junction zone of cell-liquid-high NP. In addition, except for decreasing the NP diameter, the NS thickness/width, or properly increasing the nanostructure spacing, the cell rupture can be accelerated via increasing the ΔH of nanostructures. ΔH = 40 nm is distinguished as the boundary for the effect of nanostructure ΔH on the cell rupture speed. When ΔH < 40 nm, the cell rupture speed rapidly increases as the ΔH increases; when ΔH ≥ 40 nm, the cell rupture speed reaches the maximum value and remains stable. This study provides a new strategy on how to design high-efficiency bactericidal surfaces.
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Affiliation(s)
- Lidan Zhao
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
- School of Life Science and Technology, Weifang Medical University, Weifang 261053, Shandong, P. R. China
| | - Tianqing Liu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
| | - Xiangqin Li
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
| | - Qianqian Cui
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
| | - Xin Wang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
| | - Kedong Song
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
| | - Dan Ge
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P. R. China
| | - Wenfang Li
- School of Life Science and Technology, Weifang Medical University, Weifang 261053, Shandong, P. R. China
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Natsathaporn P, Herwig G, Altenried S, Ren Q, Rossi RM, Crespy D, Itel F. Functional Fiber Membranes with Antibacterial Properties for Face Masks. ADVANCED FIBER MATERIALS 2023; 5:1-15. [PMID: 37361107 PMCID: PMC10189208 DOI: 10.1007/s42765-023-00291-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 04/09/2023] [Indexed: 06/28/2023]
Abstract
Reusable face masks are an important alternative for minimizing costs of disposable and surgical face masks during pandemics. Often complementary to washing, a prolonged lifetime of face masks relies on the incorporation of self-cleaning materials. The development of self-cleaning face mask materials requires the presence of a durable catalyst to deactivate contaminants and microbes after long-term use without reducing filtration efficiency. Herein, we generate self-cleaning fibers by functionalizing silicone-based (polydimethylsiloxane, PDMS) fibrous membranes with a photocatalyst. Coaxial electrospinning is performed to fabricate fibers with a non-crosslinked silicone core within a supporting shell scaffold, followed by thermal crosslinking and removal of the water-soluble shell. Photocatalytic zinc oxide nanoparticles (ZnO NPs) are immobilized on the PDMS fibers by colloid-electrospinning or post-functionalization procedures. The fibers functionalized with ZnO NPs can degrade a photo-sensitive dye and display antibacterial properties against Gram-positive and Gram-negative bacteria (Escherichia coli and Staphylococcus aureus) due to the generation of reactive oxygen species upon irradiation with UV light. Furthermore, a single layer of functionalized fibrous membrane shows an air permeability in the range of 80-180 L/m2s and 65% filtration efficiency against fine particulate matter with a diameter less than 1.0 µm (PM1.0). Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s42765-023-00291-7.
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Affiliation(s)
- Papada Natsathaporn
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, 21210 Thailand
| | - Gordon Herwig
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Stefanie Altenried
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Qun Ren
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - René M. Rossi
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Daniel Crespy
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, 21210 Thailand
| | - Fabian Itel
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
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Yan Z, Wang D, Gao Y. Nanomaterials for the treatment of bacterial infection by photothermal/photodynamic synergism. Front Bioeng Biotechnol 2023; 11:1192960. [PMID: 37251578 PMCID: PMC10210152 DOI: 10.3389/fbioe.2023.1192960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/28/2023] [Indexed: 05/31/2023] Open
Abstract
In the past few decades, great progress has been made in the field of nanomaterials against bacterial infection. However, with the widespread emergence of drug-resistant bacteria, people try their best to explore and develop new antibacterial strategies to fight bacteria without obtaining or increasing drug resistance. Recently, multi-mode synergistic therapy has been considered as an effective scheme for the treatment of bacterial infections, especially the combination of photothermal therapy (PTT) and photodynamic therapy (PDT) with controllable, non-invasive, small side effects and broad-spectrum antibacterial characteristics. It can not only improve the efficiency of antibiotics, but also do not promote antibiotic resistance. Therefore, multifunctional nanomaterials which combine the advantages of PTT and PDT are more and more used in the treatment of bacterial infections. However, there is still a lack of a comprehensive review of the synergistic effect of PTT and PDT in anti-infection. This review first focuses on the synthesis of synergistic photothermal/photodynamic nanomaterials and discusses the ways and challenges of photothermal/photodynamic synergism, as well as the future research direction of photothermal/photodynamic synergistic antibacterial nanomaterials.
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Cao Y, Guo Y, Yin Y, Qu X, Zhang X, Li S, Xu X, Zhou Z. Composite Hydrogel for the Targeted Capture and Photothermal Killing of Bacteria toward Facilitating Wound Healing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6413-6424. [PMID: 37126772 DOI: 10.1021/acs.langmuir.3c00218] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Pathogenic infections pose a significant risk to public health and are regarded as one of the most difficult clinical treatment obstacles. A reliable and safe photothermal antibacterial platform is a promising technique for the treatment of bacterial infections. Given the damage that high temperatures cause in normal tissues and cells, a multifunctional hydrogel driven by photothermal energy is created by trapping bacteria to reduce heat transfer loss and conduct low-temperature photothermal sterilization efficiently. The 3-aminobenzene boronic acid (ABA)-modified graphene oxide is combined with carboxymethyl chitosan (CMCS) and cellulose nanocrystalline (CNC) networks to create the ABA-GO/CNC/CMCS composite hydrogel (composite gel). The obtained composite gel displays a uniform three-dimensional network structure, which can be rapidly heated to 48 °C under infrared light irradiation and is beneficial for killing wound infection bacteria and promoting wound healing. The results of animal experiments show that the composite gel significantly reduces inflammation by killing >99.99% of bacteria under near-infrared light irradiation. The result also demonstrates that it increases the granulation tissue thickness and collagen distribution and promotes wound healing. After treatment for 14 days, compared with the remaining 27.73% of the remaining wound area in the control group, the wound area in the composite gel with NIR group is only 0.91%. It significantly accelerates the wound healing process of Staphylococcus aureus infection and shows great potential for clinical application.
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Affiliation(s)
- Yue Cao
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, P. R. China
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Yifan Guo
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Yingzheng Yin
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, P. R. China
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Xi Qu
- Beijing Institute of Spacecraft System Engineering, China Academy of Space Technology, Beijing 100094, China
| | - Xinyuan Zhang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Shaozhi Li
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, P. R. China
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Xiaoling Xu
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, P. R. China
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Zuowan Zhou
- School of Chemistry, Southwest Jiaotong University, Chengdu 610031, P. R. China
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
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Cheng Y, Ma X, Franklin T, Yang R, Moraru CI. Mechano-Bactericidal Surfaces: Mechanisms, Nanofabrication, and Prospects for Food Applications. Annu Rev Food Sci Technol 2023; 14:449-472. [PMID: 36972158 DOI: 10.1146/annurev-food-060721-022330] [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: 03/29/2023]
Abstract
Mechano-bactericidal (MB) nanopatterns have the ability to inactivate bacterial cells by rupturing cellular envelopes. Such biocide-free, physicomechanical mechanisms may confer lasting biofilm mitigation capability to various materials encountered in food processing, packaging, and food preparation environments. In this review, we first discuss recent progress on elucidating MB mechanisms, unraveling property-activity relationships, and developing cost-effective and scalable nanofabrication technologies. Next, we evaluate the potential challenges that MB surfaces may face in food-related applications and provide our perspective on the critical research needs and opportunities to facilitate their adoption in the food industry.
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Affiliation(s)
- Yifan Cheng
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, USA;
- Department of Food Science and Technology, Virginia Tech, Blacksburg, Virginia, USA;
| | - Xiaojing Ma
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, USA;
| | - Trevor Franklin
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, USA;
| | - Rong Yang
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, USA;
| | - Carmen I Moraru
- Department of Food Science, Cornell University, Ithaca, New York, USA;
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Ulfa M, Iswanti Y, Irwanti Y, Sholeha NA, Masruchin N, Subagyo R, Bahruji H, Prasetyoko D. Hydrothermal effect of gunningite use Pluronic F127-GELATIN as template and the ibuprofen adsorption performance. Heliyon 2023; 9:e14473. [PMID: 36967873 PMCID: PMC10034457 DOI: 10.1016/j.heliyon.2023.e14473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 02/27/2023] [Accepted: 03/08/2023] [Indexed: 03/12/2023] Open
Abstract
The gunningite has been successfully synthesized using Pluronic F127 and gelatin as template via hydrothermal at 100-200 °C for 12-48 h. By scanning electron microscopy, nitrogen adsorption-desorption, and X-ray diffraction, changes in structure, pore size, and morphology due to ibuprofen adsorption were investigated in gunningite. Various hydrothermal (temperature and time) parameters had an influence on the percentage elimination (%) of ibuprofens. Gunningite's specific surface area intensifies from 14.60 to 24.03 m2/g as the longer hydrothermal time. In batch adsorption studies, the resulting sample was conducted to isotherm and kinetic analysis to evaluate the distribution of ibuprofen between the liquid and solid phases. Pseudo-first-order kinetics with an adsorption capacity range of 27-34.5 mg g-1 were the best fit for the observed data. Consequently, gunningite may be considered a viable adsorbent for the large-scale treatment of water contaminated with ibuprofen and related anti-inflammatory medicines.
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Affiliation(s)
- Maria Ulfa
- Chemistry Education Study Program, Faculty of Teacher Training and Education, Sebelas Maret University, Jl. Ir. Sutami 36A, Surakarta 57126, Indonesia
- Corresponding author.
| | - Yuli Iswanti
- Chemistry Education Study Program, Faculty of Teacher Training and Education, Sebelas Maret University, Jl. Ir. Sutami 36A, Surakarta 57126, Indonesia
| | - Yuni Irwanti
- Chemistry Education Study Program, Faculty of Teacher Training and Education, Sebelas Maret University, Jl. Ir. Sutami 36A, Surakarta 57126, Indonesia
| | - Novia Amalia Sholeha
- College of Vocational Studies, Bogor Agricultural University (IPB University), Jalan Kumbang No. 14, Bogor 16151, Indonesia
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency of Indonesia (BRIN), Cibinong 16911, Indonesia
| | - Nanang Masruchin
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency of Indonesia (BRIN), Cibinong 16911, Indonesia
- Research Collaboration Center for Biomass and Biorefinery Between BRIN and Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Riki Subagyo
- Department Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Kampus ITS Keputih, 60111, Sukolilo, Surabaya, Indonesia
| | - Hasliza Bahruji
- Centre of Advanced Material and Energy Science, Universiti Brunei Darussalam, Jalan Tungku Link, BE 1410, Brunei Darussalam, Brunei
| | - Didik Prasetyoko
- Department Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Kampus ITS Keputih, 60111, Sukolilo, Surabaya, Indonesia
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11
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Xu M, Wang X, Wang B, Tang Y, Qin Z, Yin S, Liu Z, Sun H. Carbonized lotus leaf/ZnO/Au for enhanced synergistic mechanical and photocatalytic bactericidal activity under visible light irradiation. Colloids Surf B Biointerfaces 2022; 215:112468. [PMID: 35381501 DOI: 10.1016/j.colsurfb.2022.112468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 03/05/2022] [Accepted: 03/16/2022] [Indexed: 11/25/2022]
Abstract
Nowadays, bacterial resistance has continued to be a troublesome issue caused by the abuse of antibiotics, and it is the paramount difficulty in resolving the bacterial proliferation and infection. In this study, fresh lotus leaf was treated with Zn2+ followed by sintered and modification with gold nanoparticles through the photoreduction process sequentially, and thus a composite of micro/nanostructured carbonized lotus leaf/ZnO/Au (C-LL/ZnO/Au) was obtained to explore its bactericidal properties. C-LL/ZnO/Au retained the papillary structure of fresh lotus leaf and showed great mechanical bactericidal performance and photocatalytic sterilization. The antibacterial rate of mechanical sterilization for C-LL/ZnO/Au amount to 79.5% in 30 min, 4.7 times of fresh lotus leaf's figure under the same conditions. Furthermore, in C-LL/ZnO/Au, the introduction of gold nanoparticles heightened light absorbance through localized surface plasmon resonance (LSPR) effect and separation efficiency of photogenerated electron-hole pairs, which showed improved photocatalytic sterilization than that of carbonized lotus leaf/ZnO (C-LL/ZnO). Carbonized lotus leaf/ZnO/Au exhibited prominent photocatalytic and mechanical synergistic antibacterial performance against E. coli: all the bacteria were inactivated within 30 min under visible light. The approach presented here could be applied to a variety of biomass materials, which holds a promising application potential in biomedical, public health and other fields.
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Affiliation(s)
- Mingwei Xu
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun, Jilin 130022, China
| | - Xiuyan Wang
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun, Jilin 130022, China
| | - Bingdi Wang
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun, Jilin 130022, China
| | - Yanan Tang
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun, Jilin 130022, China
| | - Zhen Qin
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun, Jilin 130022, China
| | - Shengyan Yin
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, Jilin 130012, China
| | - Zhenning Liu
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun, Jilin 130022, China.
| | - Hang Sun
- Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun, Jilin 130022, China.
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12
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Chen J, Jing Q, Xu Y, Lin Y, Mai Y, Chen L, Wang G, Chen Z, Deng L, Chen J, Yuan C, Jiang L, Xu P, Huang M. Functionalized zinc oxide microparticles for improving the antimicrobial effects of skin-care products and wound-care medicines. BIOMATERIALS ADVANCES 2022; 135:212728. [PMID: 35929206 DOI: 10.1016/j.bioadv.2022.212728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/16/2022] [Accepted: 02/19/2022] [Indexed: 06/15/2023]
Abstract
ZnO is an important component in skin-protection products and wound-care medicines. However, ZnO's antibacterial activity is moderate. We developed two types of ZnO microparticles loading with phthalocyanine-type photosensitizers (ZnO/PSs) introducing the photodynamic effects. These photosensitive ZnO microparticles exhibited long-term while moderate antimicrobial effects by continuously releasing Zn2+ ions. The antimicrobial efficacies were remarkably enhanced by triggering the photodynamic antimicrobial effects. Compared to the sole ZnO which showed non-measurable antimicrobial activity at a concentration of 10 mg/L, both ZnO/PSs demonstrated antimicrobial rates ranged 99%-99.99% against Escherichia coli, normal and drug-resistant Staphylococcus aureus. In a dorsal wound infection mouse model, treatment with ZnO/PSs significantly accelerated the wound recovery rates. ZnO/PSs promoted wound healing by a dual effect: 1) the release of Zn2+ ions from ZnO facilitating tissue remodeling; 2) the photodynamic effect efficiently eliminates pathogens avoiding infection. Notably, ZnO/PSs inherited the high biosafety of ZnO without causing noticeable toxicity against erythrocyte and endothelial cells. This study not only provides a highly safe and efficient antimicrobial ZnO material for skin cares and wound modulations, but also proposes a strategy to functionalize ZnO materials.
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Affiliation(s)
- Jingyi Chen
- College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Qian Jing
- College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Yuanjie Xu
- College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Yuxin Lin
- College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Yuhan Mai
- College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Liyun Chen
- College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Guodong Wang
- College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Zheng Chen
- College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Lina Deng
- College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Jincan Chen
- State Key Laboratory of Structural Chemistry and Danish-Chinese Centre for Proteases and Cancer, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Cai Yuan
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350116, China
| | - Longguang Jiang
- College of Chemistry, Fuzhou University, Fujian 350116, China
| | - Peng Xu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350116, China.
| | - Mingdong Huang
- College of Chemistry, Fuzhou University, Fujian 350116, China; College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian 350116, China.
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13
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Zhu X, Feng S, Rao Y, Ju S, Zhong Z, Xing W. A novel semi-dry method for rapidly synthesis ZnO nanorods on SiO2@PTFE nanofiber membrane for efficient air cleaning. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120206] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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14
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Zhang X, Min Y, Zhang Q, Wu S, Fu W, Wu J, Li M, Wang Y, Zhang P. Functionalized Mn 3 O 4 Nanosheets with Photothermal, Photodynamic, and Oxidase-Like Activities Triggered by Low-Powered Near-Infrared Light for Synergetic Combating Multidrug-Resistant Bacterial Infections. Adv Healthc Mater 2022; 11:e2200121. [PMID: 35182457 DOI: 10.1002/adhm.202200121] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/02/2022] [Indexed: 01/10/2023]
Abstract
Multidrug-resistant (MDR) pathogenic bacterial infections have become a major danger to public health. Synergetic therapy through multiple approaches is more powerful than the respective one alone, but has been rarely achieved in defeating MDR bacterial infections so far. Herein, indocyanine green-functionalized Mn3 O4 nanosheets are engineered as an efficient and safe antibacterial agent with photothermal, photodynamic, and oxidase-like activities, which display powerful ability in treating MDR bacterial infections. Therein, photothermal and photodynamic activities can be triggered by a single low-powered near-infrared laser (808 nm, 0.33 W cm-2 ), resulting in the generation of localized hyperthermia (photothermal conversion efficiency, 67.5%) and singlet oxygen. Meanwhile, oxidase-like activity of this material further leads to the generation of hydroxyl radical as well as superoxide radical. Sheet-like structure with rough surfaces make them tends to adhere on bacterial surface and thus damage membrane system as well as influence bacterial metabolism. As a result, Gram-positive and Gram-negative bacteria can both be eradicated. Animal experiments further indicate that the functionalized Mn3 O4 nanosheets can effectively treat methicillin-resistant Staphylococcus aureus-infected wounds through the triple synergetic therapy. Moreover, toxicity evaluation in vitro and in vivo has proved the superior biosafety of this material, which is promising to apply in clinical anti-infective therapy.
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Affiliation(s)
- Xinwen Zhang
- Chongqing Research Center for Pharmaceutical Engineering College of Pharmacy Chongqing Medical University Chongqing 400016 P. R. China
| | - Yuanhong Min
- Engineering Research Center for Biotechnology of Active Substances (Ministry of Education) Chongqing Key Laboratory of Green Synthesis and Applications College of Chemistry Chongqing Normal University Chongqing 401331 P. R. China
| | - Qi Zhang
- Chongqing Research Center for Pharmaceutical Engineering College of Pharmacy Chongqing Medical University Chongqing 400016 P. R. China
| | - Shiyue Wu
- Engineering Research Center for Biotechnology of Active Substances (Ministry of Education) Chongqing Key Laboratory of Green Synthesis and Applications College of Chemistry Chongqing Normal University Chongqing 401331 P. R. China
| | - Wensheng Fu
- Engineering Research Center for Biotechnology of Active Substances (Ministry of Education) Chongqing Key Laboratory of Green Synthesis and Applications College of Chemistry Chongqing Normal University Chongqing 401331 P. R. China
| | - Jiangling Wu
- Department of Clinical Laboratory University‐Town Hospital of Chongqing Medical University Chongqing 401331 P. R. China
| | - Ming Li
- Chongqing Research Center for Pharmaceutical Engineering College of Pharmacy Chongqing Medical University Chongqing 400016 P. R. China
| | - Yi Wang
- Engineering Research Center for Biotechnology of Active Substances (Ministry of Education) Chongqing Key Laboratory of Green Synthesis and Applications College of Chemistry Chongqing Normal University Chongqing 401331 P. R. China
| | - Pu Zhang
- Chongqing Research Center for Pharmaceutical Engineering College of Pharmacy Chongqing Medical University Chongqing 400016 P. R. China
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15
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Mimura S, Shimizu T, Shingubara S, Iwaki H, Ito T. Bactericidal effect of nanostructures via lytic transglycosylases of Escherichia coli. RSC Adv 2022; 12:1645-1652. [PMID: 35425160 PMCID: PMC8978875 DOI: 10.1039/d1ra07623j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/27/2021] [Indexed: 11/21/2022] Open
Abstract
The time profiles of active cell ratios depended on the growth phase and the absence of some lytic transglycosylases of E. coli. Significant cell damage was not found on the autolysis inhibition condition.
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Affiliation(s)
- Soma Mimura
- Graduate School of Science and Engineering, Kansai University, Yamatecho 3-3-35, Suita, Osaka, 564-8680, Japan
| | - Tomohiro Shimizu
- Graduate School of Science and Engineering, Kansai University, Yamatecho 3-3-35, Suita, Osaka, 564-8680, Japan
| | - Shoso Shingubara
- Graduate School of Science and Engineering, Kansai University, Yamatecho 3-3-35, Suita, Osaka, 564-8680, Japan
| | - Hiroaki Iwaki
- Graduate School of Science and Engineering, Kansai University, Yamatecho 3-3-35, Suita, Osaka, 564-8680, Japan
| | - Takeshi Ito
- Graduate School of Science and Engineering, Kansai University, Yamatecho 3-3-35, Suita, Osaka, 564-8680, Japan
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16
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A novel conductive rGO/ZnO/PSF membrane with superior water flux for electrocatalytic degradation of organic pollutants. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119901] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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17
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Andriani A, Benu DP, Megantari V, Yuliarto B, Mukti RR, Ide Y, Chowdhury S, A. Amin M, Kaneti Y, Suendo V. Role of Urea on Structural, Textural, and Optical Properties of Macroemulsion-assisted Synthesized Holey ZnO Nanosheets for Photocatalytic Applications. NEW J CHEM 2022. [DOI: 10.1039/d2nj00184e] [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
Using a macroemulsion-assisted solvothermal method, the present study produces holey ZnO nanosheets exhibiting the hexagonal wurtzite crystal structure. In the synthetic process, urea is employed as a hydrolyzing agent. Its...
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18
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Michalska M, Divan R, Noirot P, Laible PD. Antimicrobial properties of nanostructured surfaces - demonstrating the need for a standard testing methodology. NANOSCALE 2021; 13:17603-17614. [PMID: 34668503 DOI: 10.1039/d1nr02953c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Bioinspired nanostructured materials that exhibit antimicrobial properties are being synthesized and tested at increasing rates for use in healthcare, manufacturing processes, and diagnostics. Although progress has been made in improving and understanding their bactericidal activity, arguably, the biggest problem currently in the field is the lack of a standard testing methodology that allows for optimal characterization and better comparison of emerging nanostructures. Here, we examine two forms of nanostructured silicon that vary in their ability to kill certain bacterial species due to different physical mechanisms and derive guidelines for the comparative testing. We perform a comprehensive evaluation of methodologies used extensively in the field (e.g., colony counting and live dead analysis) and the novel application of high-throughput flow cytometry. The data reveal how the techniques are complementary but not always directly equivalent or correlative. Therefore, comparison of results obtained using different methodologies on different materials can be grossly misleading. We report significant variations in bactericidal efficiencies depending on experimental environments (medium type, etc.) and methodologies employed. In addition, we demonstrate how cytometry is yet another powerful complementary tool that can aid the mechanistic understanding of antimicrobial activities of rough surfaces. Besides standardization for comparison, ultimately, evaluation methods need to consider anticipated applications. Then and only then can the true potential (or limitation) of a novel material be determined for its suitability for advancement in a particular field of use.
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Affiliation(s)
- Martyna Michalska
- Biosciences Division, Argonne National Laboratory, Argonne, IL 60439, USA.
| | - Ralu Divan
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Philippe Noirot
- Biosciences Division, Argonne National Laboratory, Argonne, IL 60439, USA.
| | - Philip D Laible
- Biosciences Division, Argonne National Laboratory, Argonne, IL 60439, USA.
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19
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Yi G, Riduan SN, Armugam A, Ong JT, Hon PY, Abdad MY, Vasoo S, Ang BS, Zhang Y. Nanostructured Copper Surface Kills ESKAPE Pathogens and Viruses in Minutes. ChemMedChem 2021; 16:3553-3558. [PMID: 34459159 DOI: 10.1002/cmdc.202100504] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/27/2021] [Indexed: 11/10/2022]
Abstract
In the search for a fast contact-killing antimicrobial surface to break the transmission pathway of lethal pathogens, nanostructured copper surfaces were found to exhibit the desired antimicrobial properties. Compared with plain copper, these nanostructured copper surfaces with Cu(OH)2 nano-sword or CuO nano-foam were found to completely eliminate pathogens at a fast rate, including clinically isolated drug resistant species. Additionally these nanostructured copper surfaces demonstrated potential antiviral properties when assessed against bacteriophages, as a viral surrogate, and murine hepatitis virus, a surrogate for SARS-CoV-2. The multiple modes of killing, physical killing and copper ion mediated killing contribute to the superior and fast kinetics of antimicrobial action against common microbes, and ESKAPE pathogens. Prototypes for air and water cleaning with current nanostructured copper surface have also been demonstrated.
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Affiliation(s)
- Guangshun Yi
- Institute of Bioengineering and Bioimaging, 31 Biopolis Way, The Nanos, Singapore, 138669
| | - Siti Nurhanna Riduan
- Institute of Bioengineering and Bioimaging, 31 Biopolis Way, The Nanos, Singapore, 138669
| | - Arunmozhiarasi Armugam
- Institute of Bioengineering and Bioimaging, 31 Biopolis Way, The Nanos, Singapore, 138669
| | - Jin Ting Ong
- National Centre for Infectious Diseases, 16 Jalan Tan Tock Seng, Singapore, 308442.,Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore, 308433
| | - Pei Yun Hon
- National Centre for Infectious Diseases, 16 Jalan Tan Tock Seng, Singapore, 308442.,Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore, 308433
| | - Mohammad Yazid Abdad
- National Centre for Infectious Diseases, 16 Jalan Tan Tock Seng, Singapore, 308442.,Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore, 308433
| | - Shawn Vasoo
- National Centre for Infectious Diseases, 16 Jalan Tan Tock Seng, Singapore, 308442.,Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore, 308433
| | - Brenda Sp Ang
- National Centre for Infectious Diseases, 16 Jalan Tan Tock Seng, Singapore, 308442.,Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore, 308433
| | - Yugen Zhang
- Institute of Bioengineering and Bioimaging, 31 Biopolis Way, The Nanos, Singapore, 138669
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20
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Cui Q, Liu T, Li X, Zhao L, Wu Q, Wang X, Song K, Ge D. Validation of the mechano-bactericidal mechanism of nanostructured surfaces with finite element simulation. Colloids Surf B Biointerfaces 2021; 206:111929. [PMID: 34147928 DOI: 10.1016/j.colsurfb.2021.111929] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/02/2021] [Accepted: 06/14/2021] [Indexed: 10/21/2022]
Abstract
The mechano-bactericidal property of nanostructured surfaces has become the focus of intensive research toward the development of a new generation of antibacterial surfaces, especially in the current era of spreading antibiotic resistance. However, the mechanisms underlying nanostructured surfaces mechanically damaging bacteria remain unclear, which ultimately limits translational potential toward real-world applications. Using finite element simulation technique, we developed the three-dimensional thin wall with turgor pressure finite element model (3D-TWTP-FEM) of bacterial cell and verified the reliability of this model by the AFM indentation experiment simulation of the cell, and the cell model is able to simulate suspended bacterial cell and the process of cell adhering to the flat and nanopillar surfaces. Since bacterial cells suffer greater stress and deformation on the nanopillar surfaces, a two-stage model of the elastic and creep deformation stage of the cells on the nanostructured surfaces was developed. The calculations show that the location of the maximum stress/strain on the cells adhered to the nanopillar surfaces is at the liquid-cell-nanopillar three phase contact line. The computational results confirmed the ability of nanostructured surfaces to mechanically lyse bacteria and gave the effect of nanopillar geometry on the efficiency and speed of bacterial cell rupture. This study provides fundamental physical insights into how nanopillar surfaces can serve as effective and fast mechanical antimicrobial materials.
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Affiliation(s)
- Qianqian Cui
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, Liaoning Province, PR China
| | - Tianqing Liu
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, Liaoning Province, PR China.
| | - Xiangqin Li
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, Liaoning Province, PR China
| | - Lidan Zhao
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, Liaoning Province, PR China
| | - Qiqi Wu
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, Liaoning Province, PR China
| | - Xin Wang
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, Liaoning Province, PR China
| | - Kedong Song
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, Liaoning Province, PR China
| | - Dan Ge
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, Liaoning Province, PR China
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21
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Zhang C, Zhou F, Zhan S, Song Y, Wang F, Lai J. The enhanced photocatalytic inactivation of marine microorganisms over ZnO supported Ag quantum dots by the synthesis of H 2O 2. ENVIRONMENTAL RESEARCH 2021; 197:111129. [PMID: 33839116 DOI: 10.1016/j.envres.2021.111129] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/28/2021] [Accepted: 04/03/2021] [Indexed: 06/12/2023]
Abstract
The production of hydroxyl radicals has been demonstrated to improve the antifouling of marine through a photocatalytic strategy. However, only relying on the valence band of the photocatalyst to generate hydroxyl radicals is inefficient and limits the application of photocatalytic technology in the field of marine-antifouling coatings. Herein, we reported a new strategy in which Ag quantum dots are used to synthesize hydrogen peroxide (H2O2) by photocatalysis in seawater. The decomposition of the generated H2O2 to hydroxyl radicals improves the antifouling ability. Interestingly, the prominent size effect of Ag quantum dots is closely related to the yield of H2O2. We synthesized Ag quantum dots supported on ZnO and found that Ag quantum dots approximately 4 nm in size have the highest activity for H2O2 generation and undergo a 1 h photocatalytic reaction in which the concentration of H2O2 can reach 124 μg/mL. The efficiency of ZnO in inactivating marine microorganisms increased from 72.3% to 99.4% in seawater. The synthesis of H2O2 through photocatalysis based on the medium of seawater can expand the application of photocatalytic technology in the field of marine antifouling.
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Affiliation(s)
- Chenglin Zhang
- Key Laboratory of Ship-Machinery Maintenance and Manufacture for Ministry of Transport, Dalian Maritime University, Dalian, 116026, PR China
| | - Feng Zhou
- Key Laboratory of Ship-Machinery Maintenance and Manufacture for Ministry of Transport, Dalian Maritime University, Dalian, 116026, PR China.
| | - Su Zhan
- Key Laboratory of Ship-Machinery Maintenance and Manufacture for Ministry of Transport, Dalian Maritime University, Dalian, 116026, PR China
| | - Yupeng Song
- Key Laboratory of Ship-Machinery Maintenance and Manufacture for Ministry of Transport, Dalian Maritime University, Dalian, 116026, PR China
| | - Fengguang Wang
- Key Laboratory of Ship-Machinery Maintenance and Manufacture for Ministry of Transport, Dalian Maritime University, Dalian, 116026, PR China
| | - Jianfu Lai
- Key Laboratory of Ship-Machinery Maintenance and Manufacture for Ministry of Transport, Dalian Maritime University, Dalian, 116026, PR China
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22
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Photocatalytic Inactivation as a Method of Elimination of E. coli from Drinking Water. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11031313] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The presence of microorganisms, specifically the Escherichia coli, in drinking water is of global concern. This is mainly due to the health implications of these pathogens. Several conventional methods have been developed for their removal; however, this pathogen is still found in most drinking water. In the continuous quest for a more effective removal approach, photocatalysis has been considered as an alternative method for the elimination of pathogens including E. coli from water. Photocatalysis has many advantages compared to the conventional methods. It offers the advantage of non-toxicity and utilizes the energy from sunlight, thereby making it a completely green route. Since most photocatalysts could only be active in the ultraviolet region of the solar spectrum, which is less than 5% of the entire spectrum, the challenge associated with photocatalysis is the design of a system for the effective harvest and complete utilization of the solar energy for the photocatalytic process. In this review, different photocatalysts for effective inactivation of E. coli and the mechanism involved in the process were reviewed. Various strategies that have been adopted in order to modulate the band gap energy of these photocatalysts have been explored. In addition, different methods of estimating and detecting E. coli in drinking water were presented. Furthermore, different photocatalytic reactor designs for photocatalytic inactivation of E. coli were examined. Finally, the kinetics of E. coli inactivation was discussed.
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23
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Zhao P, Wang J, Han X, Liu J, Zhang Y, Van der Bruggen B. Zr-Porphyrin Metal–Organic Framework-Based Photocatalytic Self-Cleaning Membranes for Efficient Dye Removal. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05583] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Peixia Zhao
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
- School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Jing Wang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Jindun Liu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Yatao Zhang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Bart Van der Bruggen
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, Heverlee B-3001, Belgium
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24
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Yi G, Teong SP, Liu S, Chng S, Yang YY, Zhang Y. Iron-based nano-structured surfaces with antimicrobial properties. J Mater Chem B 2020; 8:10146-10153. [DOI: 10.1039/d0tb01941k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Bactericidal nanopillar array surfaces of FeOOH and Fe2O3 have been prepared as a cicada wing mimic. An even simpler structure-based antimicrobial surface was also made by coating with sea urchin-like FeOOH and Fe2O3 particles with a binder.
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Affiliation(s)
- Guangshun Yi
- Institute of Bioengineering and Nanotechnology
- 31 Biopolis Way
- The Nanos
- Singapore 138669
- Singapore
| | - Siew Ping Teong
- Institute of Bioengineering and Nanotechnology
- 31 Biopolis Way
- The Nanos
- Singapore 138669
- Singapore
| | - Shaoqiong Liu
- Institute of Bioengineering and Nanotechnology
- 31 Biopolis Way
- The Nanos
- Singapore 138669
- Singapore
| | - Shuyun Chng
- Singapore Institute of Manufacturing Technology
- 2 Fusionopolis Way
- #08-04, Innovis
- Singapore 138634
- Singapore
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology
- 31 Biopolis Way
- The Nanos
- Singapore 138669
- Singapore
| | - Yugen Zhang
- Institute of Bioengineering and Nanotechnology
- 31 Biopolis Way
- The Nanos
- Singapore 138669
- Singapore
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