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Wang H, Zou H, Wang C, Lv S, Jin Y, Hu H, Wang X, Chi Y, Yang X. Controllable Synthesis, Formation Mechanism, and Photocatalytic Activity of Tellurium with Various Nanostructures. MICROMACHINES 2023; 15:1. [PMID: 38276829 PMCID: PMC10818636 DOI: 10.3390/mi15010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/10/2023] [Accepted: 12/14/2023] [Indexed: 01/27/2024]
Abstract
Telluriums (Te) with various nanostructures, including particles, wires, and sheets, are controllably synthesized by adjusting the content of polyvinylpyrrolidone (PVP) in a facile solvothermal reaction. Te nanostructures all have complete grain sizes with excellent crystallinity and mesopore structures. Further, the formation mechanisms of Te nanostructures are proposed to be that the primary nuclei of Te are released from the reduction of TeO32- using N2H4·H2O, and then grow into various nanostructures depending on the different content of PVP. These nanostructures of Te all exhibit the photocatalytic activities for the degradation of MB and H2 production under visible light irradiation, especially Te nanosheets, which have the highest efficiencies of degradation (99.8%) and mineralization (65.5%) at 120 min. In addition, compared with pure Te nanosheets, the rate of H2 production increases from 412 to 795 μmol∙h-1∙g-1 after the introduction of Pt, which increases the output by nearly two times. The above investigations indicate that Te with various nanostructures is a potential photocatalyst in the field of degradation of organic pollutants and H2 fuel cells.
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Affiliation(s)
- Huan Wang
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, China; (H.W.); (C.W.); (S.L.); (Y.C.)
- Department of Materials Science, Jilin Jianzhu University, Changchun 130118, China; (H.Z.); (Y.J.); (H.H.)
| | - Hanlin Zou
- Department of Materials Science, Jilin Jianzhu University, Changchun 130118, China; (H.Z.); (Y.J.); (H.H.)
| | - Chao Wang
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, China; (H.W.); (C.W.); (S.L.); (Y.C.)
| | - Sa Lv
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, China; (H.W.); (C.W.); (S.L.); (Y.C.)
| | - Yujie Jin
- Department of Materials Science, Jilin Jianzhu University, Changchun 130118, China; (H.Z.); (Y.J.); (H.H.)
| | - Hongliang Hu
- Department of Materials Science, Jilin Jianzhu University, Changchun 130118, China; (H.Z.); (Y.J.); (H.H.)
| | - Xinwei Wang
- Engineering Research Center of Optoelectronic Functional Materials, Ministry of Education, School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China
| | - Yaodan Chi
- Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education, Jilin Jianzhu University, Changchun 130118, China; (H.W.); (C.W.); (S.L.); (Y.C.)
| | - Xiaotian Yang
- Department of Chemistry, Jilin Normal University, Siping 136000, China
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Cai A, Yin H, Wang C, Chen Q, Song Y, Yin R, Yuan X, Kang H, Guo H. Bioactivity and antibacterial properties of zinc-doped Ta 2O 5nanorods on porous tantalum surface. Biomed Mater 2023; 18:065011. [PMID: 37729922 DOI: 10.1088/1748-605x/acfbd0] [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: 05/09/2023] [Accepted: 09/20/2023] [Indexed: 09/22/2023]
Abstract
This paper focuses on the preparation of Zn2+-doped Ta2O5nanorods on porous tantalum using the hydrothermal method. Porous tantalum is widely used in biomedical materials due to its excellent elastic modulus and biological activity. Porous tantalum has an elastic modulus close to that of human bone, and its large specific surface area is conducive to promoting cell adhesion. Zinc is an important component of human bone, which not only has spectral bactericidal properties, but also has no cytotoxicity. The purpose of this study is to provide a theoretical basis for the surface modification of porous tantalum and to determine the best surface modification method. The surface structure of the sample was characterized by x-ray diffractometer, x-ray photoelectron spectroscopy, scanning electron microscope, transmission electron microscope, and the Zn-doped Ta2O5nanorods are characterized by antibacterial test, MTT test, ICP and other methods. The sample has good antibacterial properties and no cytotoxicity. The results of this study have potential implications for the development of new and improved biomedical materials.
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Affiliation(s)
- Anqi Cai
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Hairong Yin
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Cuicui Wang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Qian Chen
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Yingxuan Song
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Ruixue Yin
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Xin Yuan
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Haoran Kang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Hongwei Guo
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
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Bao S, Sun S, Li L, Xu L. Synthesis and antibacterial activities of Ag-TiO 2/ZIF-8. Front Bioeng Biotechnol 2023; 11:1221458. [PMID: 37576996 PMCID: PMC10415108 DOI: 10.3389/fbioe.2023.1221458] [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: 05/12/2023] [Accepted: 07/10/2023] [Indexed: 08/15/2023] Open
Abstract
In recent years, massive bacterial infections have led to human illness and death, reminding us of the urgent need to develop effective and long-lasting antimicrobial materials. In this paper, Ag-TiO2/ZIF-8 with good environmental friendliness and biological antibacterial activity was prepared by solvothermal method. The structure and morphology of the synthesized materials were characterized by XRD, FT-IR, SEM-EDS, TEM, XPS, and BET. To investigate the antibacterial activity of the synthesized samples, Escherichia coli and Bacillus subtilis were used as target bacteria for experimental studies of zone of inhibition, bacterial growth curves, minimum bactericidal concentration and antibacterial durability. The results demonstrated that 20 wt.%Ag-TiO2/ZIF-8 had the best bacteriostatic effect on E. coli and B. subtilis under dark and UV conditions compared to TiO2 and ZIF-8. Under the same conditions, the diameter of the inhibition circle of 20 wt% Ag-TiO2/ZIF-8 is 8.5-11.5 mm larger than that of its constituent material 4 wt% Ag-TiO2, with more obvious antibacterial effect and better antibacterial performance. It is also proposed that the excellent antibacterial activity of Ag-TiO2/ZIF-8 is due to the synergistic effect of Ag-TiO2 and ZIF-8 under UV light. In addition, the prepared material has good stability and durability with effective antimicrobial activity for more than 5 months.
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Affiliation(s)
| | | | | | - Lei Xu
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, China
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Hazarika D, Chakraborty G, Kumar A, Katiyar V. Role of silk nanocrystal (SNC)-ZnO as an antibacterial nucleating nanohybrid for a patterned mimic poly(lactic acid) based nanofabric. Int J Biol Macromol 2023; 242:125126. [PMID: 37257545 DOI: 10.1016/j.ijbiomac.2023.125126] [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: 03/22/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/02/2023]
Abstract
This new investigation deals with the synthesis of an organic-inorganic nanohybrid using SNC with magnificent flower bud-shaped ZnO, termed SNC-ZnO by precipitation method. The nanohybrid (with concentrations 1 wt%, 3 wt%, and 5 wt%) was in situ incorporated into the PLA matrix to prepare the electrospun solution. The functionalized PLA composite nanofibres produced by electrospinning with SNC-ZnO nanohybrid were systematically studied using different structural and morphological analyses to meet the challenging processing requirements. The FESEM analysis gives an average diameter of nanofibres 246 ± 10.2 nm where nanohybrid tends to adhere on the surface of the PLA nanofabric increasing hydrophobicity up to water contact angle 135.3 ± 0.25 °C with 5 wt% nanohybrid incorporation. The nanofabric has significant antibacterial activity against E.Coli and S.Aureus bacteria. Further, an extensive study has been made on thermally stipulated processes using DSC on non-isothermal crystallization kinetics using different models: Avrami, Ozawa, Mo, and Tobin. The results revealed sites for heterogeneous nucleation and improvement in crystallinity, t1/2, and nucleation effects due to the incorporation of crystalline nanohybrid in PLA nanofibres. Further, the Avrami plot has confirmed both primary and secondary crystallization processes thereby considering its potential to utilize functionalized PLA nanofabric for applications in protective textile.
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Affiliation(s)
- Doli Hazarika
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Gourhari Chakraborty
- Chemical Engineering Department, NIT Andhra Pradesh, Andhra Pradesh 534101, India
| | - Amit Kumar
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Vimal Katiyar
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India.
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Du P, Xu Y, Shi Y, Xu Q, Xu Y. Amino modified cellulose fibers loaded zinc oxide nanoparticles via paper-making wet-forming for antibacterial materials. Int J Biol Macromol 2023; 227:795-804. [PMID: 36549617 DOI: 10.1016/j.ijbiomac.2022.12.145] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 12/06/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Bacterial infection has become one of the major threats to human health all over the world, and the development and application of antibacterial materials has drawn great attention. Based on the Schiff-base structure, ZnONPs@ACFs are obtained by loading zinc oxide nanoparticles (ZnONPs) on amino cellulose fibers (ACFs) in-situ through the coordination of amino groups with metal ions. The results of FT-IR, XRD and UV-vis demonstrate that ZnONPs are successfully loaded and uniformly dispersed on ACF surface, and the ACFs maintain intact morphology observed by SEM. Furthermore, the zero-span tensile strength of ZnONPs@ACFs is 66.48 N/cm (ROL: 24.98 N/cm/s) under the optimum conditions, which indicates that ZnONPs@ACFs have a certain strength and can be used to make antibacterial sheet materials via paper-making wet-forming process. Accordingly, the ZnONPs@ACF composites show inhibition zones of 4.95 mm and 1.10 mm against E. coli and S. aureus, respectively. The new cellulose-based antibacterial materials demonstrate potential applications in the field of food packaging and biological medicine etc.
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Affiliation(s)
- Peng Du
- College of Bioresources Chemical and Materials Engineering, Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Yongjian Xu
- College of Bioresources Chemical and Materials Engineering, Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an 710021, China.
| | - Yun Shi
- College of Bioresources Chemical and Materials Engineering, Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Qinghua Xu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
| | - Yang Xu
- College of Bioresources Chemical and Materials Engineering, Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an 710021, China
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6
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Metal and metal oxide nanostructures applied as alternatives of antibiotics. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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7
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Sonsupap S, Waehayee A, Siritanon T, Saenrang W, Chanlek N, Nakajima H, Rattanachata A, Maensiri S. Structure, Optical, and Photocatalytic Properties of La3+ doped CeO2 Nanospheres for Enhanced Photodegradation of Tetracycline. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Yang X, Guo XJ, Zhou D, Liu JK. High Anticorrosion Properties due to Electron Spin Polarization of Hydroxyapatite with Point Defects. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c05023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiu Yang
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Xiao-Jiao Guo
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Dan Zhou
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST), Shanghai 200237, P.R. China
- Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan 643000, P.R. China
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Construction of UiO-NH2@TiC Schottky Junction and Their Effectively Photocatalytic and Antibacterial Performance. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02233-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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10
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Yang T, Zhou Y, Cheong S, Kong C, Mazur F, Liang K, Chandrawati R. Modulating nitric oxide-generating activity of zinc oxide by morphology control and surface modification. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 130:112428. [PMID: 34702513 DOI: 10.1016/j.msec.2021.112428] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/03/2021] [Accepted: 09/08/2021] [Indexed: 12/22/2022]
Abstract
Zinc oxide (ZnO) has emerged as a promising material for nitric oxide (NO) delivery owing to its intrinsic enzyme-mimicking activities to catalyze NO prodrugs S-nitrosoglutathione (GSNO) and β-gal-NONOate for NO generation. The catalytic performance of enzyme mimics is strongly dependent on their size, shape, and surface chemistry; however, no studies have evaluated the influence of the aforementioned factors on the NO-generating activity of ZnO. Understanding these factors will provide an opportunity to tune NO generation profiles to accommodate diverse biomedical applications. In this paper, for the first time, we demonstrate that the activity of ZnO towards catalytic NO generation is shape-dependent, resulting from the different crystal growth directions of these particles. We modified the surfaces of ZnO particles with zeolitic imidazolate framework (ZIF-8) by in situ synthesis and observed that ZnO/ZIF-8 retained 60% of its NO-generating potency. The newly formed ZnO/ZIF-8 particles were shown to catalytically decompose both endogenous (GSNO) and exogenous (β-gal-NONOate and S-nitroso-N-acetylpenicillamine (SNAP)) prodrugs to generate NO at physiological conditions. In addition, we design the first platform that combines NO-generating and superoxide radical scavenging properties by encapsulating a natural enzyme, superoxidase dismutase (SOD), into ZnO/ZIF-8 particles, which holds great promise towards combinatorial therapy.
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Affiliation(s)
- Tao Yang
- School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia
| | - Yingzhu Zhou
- School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia
| | - Soshan Cheong
- Electron Microscope Unit, Mark Wainwright Analytical Centre, The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia
| | - Charlie Kong
- Electron Microscope Unit, Mark Wainwright Analytical Centre, The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia
| | - Federico Mazur
- School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia
| | - Kang Liang
- School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia; Graduate School of Biomedical Engineering, The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia.
| | - Rona Chandrawati
- School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia.
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Activity of Povidone in Recent Biomedical Applications with Emphasis on Micro- and Nano Drug Delivery Systems. Pharmaceutics 2021; 13:pharmaceutics13050654. [PMID: 34064408 PMCID: PMC8147856 DOI: 10.3390/pharmaceutics13050654] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 04/26/2021] [Accepted: 05/01/2021] [Indexed: 12/16/2022] Open
Abstract
Due to the unwanted toxic properties of some drugs, new efficient methods of protection of the organisms against that toxicity are required. New materials are synthesized to effectively disseminate the active substance without affecting the healthy cells. Thus far, a number of polymers have been applied to build novel drug delivery systems. One of interesting polymers for this purpose is povidone, pVP. Contrary to other polymeric materials, the synthesis of povidone nanoparticles can take place under various condition, due to good solubility of this polymer in several organic and inorganic solvents. Moreover, povidone is known as nontoxic, non-carcinogenic, and temperature-insensitive substance. Its flexible design and the presence of various functional groups allow connection with the hydrophobic and hydrophilic drugs. It is worth noting, that pVP is regarded as an ecofriendly substance. Despite wide application of pVP in medicine, it was not often selected for the production of drug carriers. This review article is focused on recent reports on the role povidone can play in micro- and nano drug delivery systems. Advantages and possible threats resulting from the use of povidone are indicated. Moreover, popular biomedical aspects are discussed.
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Yang T, Fruergaard AS, Winther AK, Zelikin AN, Chandrawati R. Zinc Oxide Particles Catalytically Generate Nitric Oxide from Endogenous and Exogenous Prodrugs. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1906744. [PMID: 32141238 DOI: 10.1002/smll.201906744] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/25/2020] [Accepted: 02/17/2020] [Indexed: 06/10/2023]
Abstract
Nitric oxide (NO) is a potent biological molecule that contributes to a wide spectrum of physiological processes. However, the full potential of NO as a therapeutic agent is significantly complicated by its short half-life and limited diffusion distance in human tissues. Current strategies for NO delivery focus on encapsulation of NO donors into prefabricated scaffolds or an enzyme-prodrug therapy approach. The former is limited by the finite pool of NO donors available, while the latter is challenged by the inherent low stability of natural enzymes. Zinc oxide (ZnO) particles with innate glutathione peroxidase and glycosidase activities, a combination that allows to catalytically decompose both endogenous (S-nitrosoglutathione) and exogenous (β-gal-NONOate) donors to generate NO at physiological conditions are reported. By tuning the concentration of ZnO particles and NO prodrugs, physiologically relevant NO levels are achieved. ZnO preserves its catalytic property for at least 6 months and the activity of ZnO in generating NO from prodrugs in human serum is demonstrated. The ZnO catalytic activity will be beneficial toward generating stable NO release for long-term biomedical applications.
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Affiliation(s)
- Tao Yang
- School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales (UNSW Sydney), Sydney, NSW, 2052, Australia
| | - Anne Sofie Fruergaard
- Department of Chemistry and iNANO Interdisciplinary Nanoscience Center, Aarhus University, Aarhus, C 8000, Denmark
| | - Anna K Winther
- Department of Chemistry and iNANO Interdisciplinary Nanoscience Center, Aarhus University, Aarhus, C 8000, Denmark
| | - Alexander N Zelikin
- Department of Chemistry and iNANO Interdisciplinary Nanoscience Center, Aarhus University, Aarhus, C 8000, Denmark
| | - Rona Chandrawati
- School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales (UNSW Sydney), Sydney, NSW, 2052, Australia
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Figueroa-Lopez KJ, Torres-Giner S, Enescu D, Cabedo L, Cerqueira MA, Pastrana LM, Lagaron JM. Electrospun Active Biopapers of Food Waste Derived Poly(3-hydroxybutyrate- co-3-hydroxyvalerate) with Short-Term and Long-Term Antimicrobial Performance. NANOMATERIALS 2020; 10:nano10030506. [PMID: 32168913 PMCID: PMC7153266 DOI: 10.3390/nano10030506] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/04/2020] [Accepted: 03/06/2020] [Indexed: 01/01/2023]
Abstract
This research reports about the development by electrospinning of fiber-based films made of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) derived from fermented fruit waste, so-called bio-papers, with enhanced antimicrobial performance. To this end, different combinations of oregano essential oil (OEO) and zinc oxide nanoparticles (ZnONPs) were added to PHBV solutions and electrospun into mats that were, thereafter, converted into homogeneous and continuous films of ~130 μm. The morphology, optical, thermal, mechanical properties, crystallinity, and migration into food simulants of the resultant PHBV-based bio-papers were evaluated and their antimicrobial properties were assessed against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) in both open and closed systems. It was observed that the antimicrobial activity decreased after 15 days due to the release of the volatile compounds, whereas the bio-papers filled with ZnONPs showed high antimicrobial activity for up to 48 days. The electrospun PHBV biopapers containing 2.5 wt% OEO + 2.25 wt% ZnONPs successfully provided the most optimal activity for short and long periods against both bacteria.
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Affiliation(s)
- Kelly J. Figueroa-Lopez
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish National Research Council (CSIC), Calle Catedrático Agustín Escardino Benlloch 7, 46980 Paterna, Spain;
| | - Sergio Torres-Giner
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish National Research Council (CSIC), Calle Catedrático Agustín Escardino Benlloch 7, 46980 Paterna, Spain;
- Correspondence: (S.T.-G.); (J.M.L.); Tel.: +34-963-900-022 (S.T.-G.); +34-963-900-022 (J.M.L.)
| | - Daniela Enescu
- International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga, 4715-330 Braga, Portugal; (D.E.); (M.A.C.); (L.M.P.)
| | - Luis Cabedo
- Polymers and Advanced Materials Group (PIMA), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat s/n, 12071 Castellón, Spain;
| | - Miguel A. Cerqueira
- International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga, 4715-330 Braga, Portugal; (D.E.); (M.A.C.); (L.M.P.)
| | - Lorenzo M. Pastrana
- International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga, 4715-330 Braga, Portugal; (D.E.); (M.A.C.); (L.M.P.)
| | - Jose M. Lagaron
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish National Research Council (CSIC), Calle Catedrático Agustín Escardino Benlloch 7, 46980 Paterna, Spain;
- Correspondence: (S.T.-G.); (J.M.L.); Tel.: +34-963-900-022 (S.T.-G.); +34-963-900-022 (J.M.L.)
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Rostas AM, Kuncser AC, Ghica D, Palici A, Maraloiu VA, Vlaicu ID. Electron paramagnetic resonance and microstructural insights into the thermal behavior of simonkolleite nanoplatelets. Phys Chem Chem Phys 2020; 22:9503-9512. [DOI: 10.1039/d0cp00641f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The thermal decomposition process of simonkolleite, at 500 °C was monitored by EPR and electron microscopy. The experimental data indicate that after an 1 h at 500 °C, three morphologies can be observed from the thermal decomposition of ZHC.
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Affiliation(s)
| | | | - Daniela Ghica
- National Institute of Materials Physics
- Bucharest
- Romania
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