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Gu Y, You Y, Yang Y, Liu X, Yang L, Li Y, Zhang C, Yang H, Sha Z, Ma Y, Pang Y, Liu Y. Multifunctional EGCG@ZIF-8 Nanoplatform with Photodynamic Therapy/Chemodynamic Therapy Antibacterial Properties Promotes Infected Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:50238-50250. [PMID: 39284745 DOI: 10.1021/acsami.4c08169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/28/2024]
Abstract
Damaged skin is susceptible to invasion by harmful microorganisms, especially Staphylococcus aureus and Escherichia coli, which can delay healing. Epigallocatechin-3-gallate (EGCG) is a natural compound known for effectively promoting wound healing and its potent anti-inflammatory effects. However, its application is limited due to its susceptibility to oxidation and isomerization, which alter its structure. The use of zeolitic imidazolate framework-8 (ZIF-8) can effectively tackle these issues. This study introduces an oxygen (O2) and hydrogen peroxide (H2O2) self-supplying ZIF-8 nanoplatform designed to enhance the bioavailability of EGCG, combining photodynamic therapy (PDT) and chemodynamic therapy (CDT) to improve antibacterial properties and ultimately accelerate wound healing. For this purpose, EGCG and indocyanine green (ICG), a photosensitizer, were successively integrated into a ZIF-8, and coated with bovine serum albumin (BSA) to enhance biocompatibility. The outer layer of this construct was further modified with manganese dioxide (MnO2) to promote CDT and calcium peroxide (CaO2) to supply H2O2 and O2, resulting in the final nanoplatform EGCG-ICG@ZIF-8/BSA-MnO2/CaO2 (EIZBMC). In in vitro experiments under 808 nm laser, EIZBMC exhibited synergistic antibacterial effects through PDT and CDT. This combination effectively released reactive oxygen species (ROS), which mediated oxidative stress to inhibit the bacteria. Subsequently, in a murine model of wound infection, EIZBMC not only exerted antibacterial effects through PDT and CDT but also alleviated the inflammatory condition and promoted the regeneration of collagen fibers, which led to accelerated wound healing. Overall, this research presents a promising approach to enhancing the therapeutic efficacy of EGCG by leveraging the synergistic antibacterial effects of PDT and CDT. This multifunctional nanoplatform maximizes EGCG's anti-inflammatory properties, offering a potent solution for promoting infected wound healing.
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Affiliation(s)
- Yufan Gu
- Department of Biophysics, School of Life Sciences, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Yuxin You
- Department of Biophysics, School of Life Sciences, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Yijia Yang
- Department of Biophysics, School of Life Sciences, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Xinyi Liu
- Department of Biophysics, School of Life Sciences, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Luyuan Yang
- Department of Biophysics, School of Life Sciences, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Yanzhu Li
- Department of Biophysics, School of Life Sciences, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Chaoyi Zhang
- Department of Biophysics, School of Life Sciences, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Huan Yang
- Department of Biophysics, School of Life Sciences, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Ziqi Sha
- Department of Biophysics, School of Life Sciences, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Youzhen Ma
- Department of Biophysics, School of Life Sciences, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Yipeng Pang
- Department of Biophysics, School of Life Sciences, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Yi Liu
- Department of Biophysics, School of Life Sciences, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
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Das A, Liu D, Wu Y, Abzakh BA, R M, M P, Kazakova EA, Vasenko AS, Prezhdo OV. Origin of the Improved Photoelectrochemical and Photocatalytic Activity in a ZnO-TiO 2 Nanohybrid Revealed by Experimental and Density Functional Theory Studies. J Phys Chem Lett 2024; 15:7524-7532. [PMID: 39023018 DOI: 10.1021/acs.jpclett.4c01641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Heterojunctions of metal oxides have attracted a great deal of attention as photo (electro) catalysts owing to their excellent photoactivity. While multiple fundamental studies have been dedicated to heteroaggregation, self-assembly of oppositely charged particles to obtain heterojunctions for energy applications has been underexplored. Herein, we report the synthesis of ZnO-TiO2 heterojunctions using the electrostatic self-assembly approach. The synthesized ZnO-TiO2 heterojunctions were characterized by using multiple experimental techniques. Density functional theory calculations were conducted to establish the heterojunction formation mechanism and electronic properties. The ZnO-TiO2 nanohybrid was tested for the photodegradation of rhodamine B dye and water splitting applications. The photocatalytic performance of the ZnO-TiO2 nanohybrid is 3.5 times higher than that of bare ZnO. In addition, the heterostructure exhibited an excellent photocurrent density of 2.4 mA cm-2 at a low onset potential during photoelectrochemical oxygen evolution. The performance improvements are attributed to the formation of the type II heterojunction between ZnO and TiO2, which suppresses carrier recombination and enhances carrier transport, boosting the catalytic activity.
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Affiliation(s)
- Abinash Das
- PSG Institute of Advanced Studies, Coimbatore 641004, Tamil Nadu, India
| | | | - Yifan Wu
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | | | - Madhumitha R
- PSG Institute of Advanced Studies, Coimbatore 641004, Tamil Nadu, India
| | - Preethi M
- PSG Institute of Advanced Studies, Coimbatore 641004, Tamil Nadu, India
| | - Elena A Kazakova
- Department of Biochemistry, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Andrey S Vasenko
- HSE University, 101000 Moscow, Russia
- Donostia International Physics Center (DIPC), 20018 San Sebastián-Donostia, Euskadi, Spain
| | - Oleg V Prezhdo
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
- Department of Physics & Astronomy, University of Southern California, Los Angeles, California 90089, United States
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Sun Y, Zhang H, Lv Y, An S, Wang R. ZIF-8/g-C 3N 4 photocatalysts: enhancing CO 2 reduction through improved adsorption and photocatalytic performance. RSC Adv 2024; 14:17498-17506. [PMID: 38818363 PMCID: PMC11137614 DOI: 10.1039/d4ra02548b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 05/20/2024] [Indexed: 06/01/2024] Open
Abstract
Nowadays, the widespread concern over controlling CO2 emissions and mitigating the adverse effects of greenhouse gases on global climate has attracted significant attention. In this study, g-C3N4 was synthesized by thermopolymerizing urea. Subsequently, ZIF-8 was combined with g-C3N4 using an in situ deposition method, resulting in the fabrication of ZIF-8/g-C3N4 composite photocatalysts at various molar ratios. Effective incorporation of ZIF-8 into g-C3N4 suppressed the recombination of photogenerated electrons and holes, thereby enhancing CO2 capture capacity and preserving light absorption capabilities. The ZIF-8/g-C3N4 composite demonstrates excellent photocatalytic performance for CO2 reduction, where the optimized material exhibited a CO2 adsorption capacity 1.52 times that of pure g-C3N4 and increased the conversion of CO2 to CH4 by more than sevenfold. This study harnesses the superior CO2 adsorption properties of metal-organic frameworks to develop more efficient photocatalysts, enhancing CO2 conversion efficacy and offering insights for developing efficient photocatalysts that utilize CO2.
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Affiliation(s)
- Yihui Sun
- Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education Baotou 014010 China
- College of Rare Earth Industry, Inner Mongolia University of Science and Technology China
| | - Hui Zhang
- Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education Baotou 014010 China
- College of Rare Earth Industry, Inner Mongolia University of Science and Technology China
| | - Yan Lv
- Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education Baotou 014010 China
- College of Rare Earth Industry, Inner Mongolia University of Science and Technology China
| | - Shengli An
- Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education Baotou 014010 China
- College of Rare Earth Industry, Inner Mongolia University of Science and Technology China
| | - Ruifen Wang
- Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education Baotou 014010 China
- College of Rare Earth Industry, Inner Mongolia University of Science and Technology China
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Li Q, Li H, Zong X, Sun H, Liu Y, Zhan Z, Mei S, Qi Y, Huang Y, Ye Y, Pan F. Highly efficient adsorption of ciprofloxacin from aqueous solutions by waste cation exchange resin-based activated carbons: Performance, mechanism, and theoretical calculation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169534. [PMID: 38141999 DOI: 10.1016/j.scitotenv.2023.169534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/21/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
This study focused on the preparation of a highly efficient activated carbon adsorbent from waste cation exchange resins through one-step carbonization to remove ciprofloxacin (CIP) from aqueous solutions. Scanning electron microscopy, X-ray diffraction, Fourier-transform infrared spectrometry, and X-ray photoelectron spectroscopy were used to characterize the physicochemical properties of the carbonized materials. The CIP removal efficiency, influencing factors, and adsorption mechanisms of CIP on the carbonized resins were investigated. Density functional theory (DFT) computations were performed to elucidate the adsorption mechanisms. The CIP removal reached 93 % when the adsorbent dosage was 300 mg/L at 25 °C. The adsorption capacity of the carbonized resins to CIP gradually decreased with an increasing pH from 3.0 to 7.0 and sharply declined with a pH from 7.0 to 11.0. The adsorption process better fitted by the pseudo second-order kinetic and Langmuir models, indicating that the interaction between CIP and the carbonized resins was monolayer adsorption. The maximum adsorption capacity fitted by the Langmuir model was 384.4 mg/g at 25 °C. Microstructural analysis showed that the adsorption of CIP on the carbonized resins was a joint effect of H-bonding, ion exchange, and graphite-N adsorption. Computational results signified the strong H-bonding and ion exchange interactions existed between CIP and carbonized resins. The high adsorption and reusability suggest that waste cation exchange resin-based activated carbons can be used as an effective and reusable adsorbent for removing CIP from aqueous solutions.
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Affiliation(s)
- Qiang Li
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China; State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
| | - Haochen Li
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Xiaofei Zong
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Haochao Sun
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Yunhao Liu
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Ziyi Zhan
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Shou Mei
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Yanjie Qi
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Yangbo Huang
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Yuxuan Ye
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China; State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Fei Pan
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China; State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
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Sadiq S, Khan I, Humayun M, Wu P, Khan A, Khan S, Khan A, Khan S, Alanazi AF, Bououdina M. Synthesis of Metal-Organic Framework-Based ZIF-8@ZIF-67 Nanocomposites for Antibiotic Decomposition and Antibacterial Activities. ACS OMEGA 2023; 8:49244-49258. [PMID: 38162750 PMCID: PMC10753725 DOI: 10.1021/acsomega.3c07606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/16/2023] [Accepted: 11/28/2023] [Indexed: 01/03/2024]
Abstract
Toxic antibiotic effluents and antibiotic-resistant bacteria constitute a threat to global health. So, scientists are investigating high-performance materials for antibiotic decomposition and antibacterial activities. In this novel research work, we have successfully designed ZIF-8@ZIF-67 nanocomposites via sol-gel and solvothermal approaches. The ZIF-8@ZIF-67 nanocomposite is characterized by various techniques that exhibit superior surface area enhancement, charge separation, and high light absorption performance. Yet, ZIF-8 has high adsorption rates and active sites, while ZIF-67 has larger pore volume and efficient adsorption and reaction capabilities, demonstrating that the ZIF-8@ZIF-67 nanocomposite outperforms pristine ZIF-8 and ZIF-67. Compared with pristine ZIF-8 and ZIF-67, the most active 6ZIF-67@ZIF-8 nanocomposite showed higher decomposition efficacy for ciprofloxacin (65%), levofloxacin (54%), and ofloxacin (48%). Scavenger experiments confirmed that •OH, •O2-, and h+ are the most active species for the decomposition of ciprofloxacin (CIP), levofloxacin (LF), and ofloxacin (OFX), respectively. In addition, the 6ZIF-67/ZIF-8 nanocomposite suggested its potential applications in Escherichia coli for growth inhibition zone, antibacterial activity, and decreased viability. Moreover, the stability test and decomposition pathway of CIP, LF, and OFX were also proposed. Finally, our study aims to enhance the efficiency and stability of ZIF-8@ZIF-67 nanocomposite and potentially enable its applications in antibiotic decomposition, antibacterial activities, and environmental remediation.
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Affiliation(s)
- Samreen Sadiq
- School
of Biotechnology, Jiangsu University of
Science and Technology, Zhenjiang 212100, Jiangsu, China
| | - Iltaf Khan
- School
of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Muhammad Humayun
- Energy,
Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
| | - Ping Wu
- School
of Biotechnology, Jiangsu University of
Science and Technology, Zhenjiang 212100, Jiangsu, China
| | - Abbas Khan
- Energy,
Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
- Department
of Chemistry, Abdul Wali Khan University
Mardan, Mardan 23200, Pakistan
| | - Sohail Khan
- Department
of Pharmacy, University of Swabi, Swabi 94640, Khyber Pakhtunkhwa, Pakistan
| | - Aftab Khan
- Department
of Physics, School of Science, Jiangsu University
of Science and Technology, Zhenjiang 212100, Jiangsu, China
| | - Shoaib Khan
- College of
Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| | - Amal Faleh Alanazi
- Energy,
Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
| | - Mohamed Bououdina
- Energy,
Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
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Rodriguez R, Palma MS, Bhandari D, Tian F. Electrodeposition of Ag/ZIF-8-Modified Membrane for Water Remediation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:2291-2300. [PMID: 36716236 PMCID: PMC9933538 DOI: 10.1021/acs.langmuir.2c02947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Metal-organic framework (MOF)-based membranes have been widely used in gas and liquid separation due to their porous structures and tunable compositions. Depending on the guest components, heterostructured MOFs can exhibit multiple functions. In the present work, we report a facile and rapid preparation of zeolitic imidazolate framework-8 (ZIF-8) and silver nanoparticle incorporated ZIF-8 (Ag/ZIF-8)-based membranes on stainless-steel mesh (SSM) through a "green" electrodeposition method. The SSM was first coated with a Zn-plated layer which contains mainly zinc hydroxide nitrate (Zn5(OH)8(NO3)2·2H2O) with a "leaf-like" morphology, providing anchoring points for the deposition of ZIF-8 and Ag/ZIF-8. It takes only 10 min to prepare a uniform coating of Zn5(OH)8(NO3)2·2H2O in aqueous conditions without the use of a strong base; this is by far the most efficient way of making zinc hydroxide nitrate nanocrystals. Following a similar electrodeposition approach, ZIF-8 and Ag/ZIF-8-coated SSM can be prepared within 20 min by applying a small current. The encapsulation of Ag does not alter the chemical composition nor the crystal structure of ZIF-8. The resulting ZIF-8 and Ag/ZIF-8-coated SSM have been tested for their effectiveness for rhodamine B dye removal in a fast vacuum filtration setting. Additionally, growth of E. coli was significantly inhibited after overnight incubation with Ag/ZIF-8-coated SSM. Overall, we demonstrate a fast synthesis procedure to make ZIF-8 and Ag/ZIF-8-coated SSM membranes for organic dye removal with excellent antimicrobial activity.
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