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Chakraborty N, Jha D, Singh VP, Kumar P, Verma NK, Gautam HK, Roy I. White-Light-Responsive Prussian Blue Nanophotonic Particles for Effective Eradication of Bacteria and Improved Healing of Infected Cutaneous Wounds. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37899589 DOI: 10.1021/acsami.3c09516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
The increasing burden of cutaneous wound infections with drug-resistant bacteria underlines the dire need for novel treatment approaches. Here, we report the preparation steps, characterization, and antibacterial efficacy of novel chitosan-coated Prussian blue nanoparticles loaded with the photosensitizer fluorescein isothiocyanate-dextran (CHPB-FD). With excellent photothermal and photodynamic properties, CHPB-FD nanoparticles can effectively eradicate both Gram-positive methicillin-resistant Staphylococcus aureus and Gram-negative Pseudomonas aeruginosa in vitro and in vivo. The antibacterial efficacy of CHPB-FD nanophotonic particles further increases in the presence of white light. Using a bacteria-infected cutaneous wound rat model, we demonstrate that CHPB-FD particles upregulate genes involved in tissue remodeling, promote collagen deposition, reduce unwanted inflammation, and enhance healing. The light-responsive CHPB-FD nanophotonic particles can, therefore, be potentially used as an economical and safe alternative to antibiotics for effectively decontaminating skin wounds and for disinfecting biomedical equipment and surfaces in hospitals and other places.
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Affiliation(s)
- Nayanika Chakraborty
- Department of Chemistry, University of Delhi, New Delhi 110007, India
- Department of Immunology and Infectious Disease Biology, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi 110025, India
| | - Diksha Jha
- Department of Immunology and Infectious Disease Biology, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi 110025, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Vijay Pal Singh
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi 110007, India
| | - Pradeep Kumar
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi 110007, India
| | - Navin Kumar Verma
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Clinical Sciences Building, 11 Mandalay Road, Singapore 308232, Singapore
- National Skin Centre, 1 Mandalay Road, Singapore 308205, Singapore
- Skin Research Institute of Singapore, Clinical Sciences Building, 11 Mandalay Road, Singapore 308232, Singapore
| | - Hemant Kumar Gautam
- Department of Immunology and Infectious Disease Biology, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi 110025, India
| | - Indrajit Roy
- Department of Chemistry, University of Delhi, New Delhi 110007, India
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2
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Raghav GR, Nagarajan KJ, Palaninatharaja M, Karthic M, Kumar RA, Ganesh MA. Reuse of used paper egg carton boxes as a source to produce hybrid AgNPs- carboxyl nanocellulose through bio-synthesis and its application in active food packaging. Int J Biol Macromol 2023; 249:126119. [PMID: 37541473 DOI: 10.1016/j.ijbiomac.2023.126119] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/21/2023] [Accepted: 08/01/2023] [Indexed: 08/06/2023]
Abstract
The proper disposal of disposable synthetic plastic food packaging materials presents a significant challenge for both the environment and the solid waste management community. To address this issue, an antibacterial-based high-strength bio-composite serves as the optimal alternative to conventional packaging materials. This study aims to produce a hybrid material of AgNPs-carboxyl cellulose nanocrystals (AgNPs-CCNCs), obtained from used egg carton boxes (UECBs), through bio acid hydrolysis and an in-situ generation process. Furthermore, AgNPs- carboxyl cellulose nanofibers (AgNPs-CCNFs) will be synthesized through a combination of bio acid hydrolysis and ball milling, followed by an additional in-situ generation step. The AgNPs-carboxyl nanocellulose (AgNPs-CCNCs, and AgNPs-CCNFs) exhibited excellent crystallinity index, morphology, thermal, and antibacterial properties. The morphological analysis was performed by electron microscopy, and the results showed the uniform distribution and spherical form of AgNPs appearing over the carboxyl nanocellulose through the in-situ generation process, which was confirmed through XRD analysis. The study further explores the impact of AgNPs-carboxyl nanocellulose on the mechanical, chemical, antibacterial, and thermal properties of the PVA matrix. The results demonstrate that the bio-nanocomposite film offers opportunities for utilization in active packaging applications.
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Affiliation(s)
- G R Raghav
- Department of Mechanical Engineering, SCMS School of Engineering & Technology Karukutty, Cochin, Kerala, India.
| | - K J Nagarajan
- Department of Mechatronics Engineering, Thiagarajar College of Engineering, Madurai-625015, Tamil Nadu, India.
| | - M Palaninatharaja
- Department of Mechatronics Engineering, Thiagarajar College of Engineering, Madurai-625015, Tamil Nadu, India.
| | - M Karthic
- Department of Mechanical Engineering, Thiagarajar College of Engineering, Madurai-625015, Tamil Nadu, India.
| | - R Ashok Kumar
- Department of Mechanical Engineering, SRM Madurai College for Engineering and Technology, Pottapalayam-630612, Tamil Nadu, India.
| | - M A Ganesh
- Department of Mechatronics Engineering, Thiagarajar College of Engineering, Madurai-625015, Tamil Nadu, India.
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3
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Li S, Wu B, Chen T, Wu Y, Wang J, Zhang X, Lu Z, Wang L. Synthesis and characterization of Ag-decorated litchi-like porous Cu/Cu 2O micro/nanoparticles with antibacterial activity. ENVIRONMENTAL TECHNOLOGY 2023; 44:570-578. [PMID: 34714219 DOI: 10.1080/21622515.2021.1979106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Efficient and stable inorganic antibacterial material is highly spotted in antibacterial materials. However, the morphology and grain diameter of conventional inorganic compound antibacterial agent carrier are difficult to control and severely deteriorate antibacterial properties. In this research, using diethylene glycol monomer methyl ether as a pore-forming agent, litchi-like porous micro/nano Cu/Cu2O composite antibacterial carriers (Car-MNps) with good dispersion and high crystallinity are prepared by a liquid-phase chemical reduction process. Subsequently, we develop a synergistic system of inorganic composite antibacterial materials decorated with silver (Ag/Car-MNps). The microstructures of the antibacterial materials are characterized by means of various techniques, such as X-ray diffraction, scanning electron microscope, transmission electron microscope, X-ray photoelectron spectroscopy, and nitrogen adsorption. The antibacterial activities are evaluated by methods of bacteriostatic zone and minimum inhibitory concentration (MIC). The results show that the micro- and nano-materials of Car-MNPs exhibit high specific surface area characteristics and show attractive bactericidal properties. The MIC values of Ag/Car-MNps against S. aureus and E. coli decrease from 1000 mg/L and 2000mg/L to 125 and 250 mg/L, respectively, in comparison with those of Car-MNps. Our experiments may show novel insights for the development of inorganic compound antibacterial agents.
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Affiliation(s)
- Shuo Li
- Guilin Key Laboratory of Microelectronic Electrode Materials and Biological Nanomaterials & National Special Mineral Materials Engineering Technology Research Center & Guangxi Key Laboratory of Superhard Materials, China Monferrous Metal (Guilin) Geology and Mining Co., Ltd, Guilin, People's Republic of China
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin, People's Republic of China
| | - Bojing Wu
- Guilin Key Laboratory of Microelectronic Electrode Materials and Biological Nanomaterials & National Special Mineral Materials Engineering Technology Research Center & Guangxi Key Laboratory of Superhard Materials, China Monferrous Metal (Guilin) Geology and Mining Co., Ltd, Guilin, People's Republic of China
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin, People's Republic of China
| | - Tongxiang Chen
- Guilin Key Laboratory of Microelectronic Electrode Materials and Biological Nanomaterials & National Special Mineral Materials Engineering Technology Research Center & Guangxi Key Laboratory of Superhard Materials, China Monferrous Metal (Guilin) Geology and Mining Co., Ltd, Guilin, People's Republic of China
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin, People's Republic of China
| | - Yinggang Wu
- Guilin Key Laboratory of Microelectronic Electrode Materials and Biological Nanomaterials & National Special Mineral Materials Engineering Technology Research Center & Guangxi Key Laboratory of Superhard Materials, China Monferrous Metal (Guilin) Geology and Mining Co., Ltd, Guilin, People's Republic of China
| | - Jiaxing Wang
- Guilin Key Laboratory of Microelectronic Electrode Materials and Biological Nanomaterials & National Special Mineral Materials Engineering Technology Research Center & Guangxi Key Laboratory of Superhard Materials, China Monferrous Metal (Guilin) Geology and Mining Co., Ltd, Guilin, People's Republic of China
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin, People's Republic of China
| | - Xiaowen Zhang
- School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin, People's Republic of China
| | - Zongliu Lu
- Guilin Key Laboratory of Microelectronic Electrode Materials and Biological Nanomaterials & National Special Mineral Materials Engineering Technology Research Center & Guangxi Key Laboratory of Superhard Materials, China Monferrous Metal (Guilin) Geology and Mining Co., Ltd, Guilin, People's Republic of China
| | - Lihui Wang
- Guilin Key Laboratory of Microelectronic Electrode Materials and Biological Nanomaterials & National Special Mineral Materials Engineering Technology Research Center & Guangxi Key Laboratory of Superhard Materials, China Monferrous Metal (Guilin) Geology and Mining Co., Ltd, Guilin, People's Republic of China
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4
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Rao L, You X, Chen B, Shen L, Xu Y, Zhang M, Hong H, Li R, Lin H. A novel composite membrane for simultaneous separation and catalytic degradation of oil/water emulsion with high performance. CHEMOSPHERE 2022; 288:132490. [PMID: 34624347 DOI: 10.1016/j.chemosphere.2021.132490] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/30/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
It is of great significance to develop novel membranes with dual-function of simultaneously separating oil/water emulsion and degrading the contained water-miscible toxic organic components. To meet this requirement, a dual-functional Ni nanoparticles (NPs)@Ag/C-carbon nanotubes (CNTs) composite membrane was fabricated via electroless nickel plating strategy in this study. The as-prepared composite membrane possessed superhydrophilicity with water contact angle of 0° and splendid underwater oleophobic property with oil contact angle of 142°. When the membrane was applied for separation of surfactant stabilized oil-in-water emulsion, high permeate flux (about 97 L m-2·h-1 under gravity), oil rejection (about 98.8%) and antifouling property were achieved. Benefitting from the NiNPs@Ag/C-CNTs layer on membrane surface, the composite membrane exhibited high catalytic degradation activity for water-miscible toxic organic pollutant (4-nitrophenol) with addition of NaBH4 in a flow-through mode. Meanwhile, the NiNPs@Ag/C-CNTs composite membrane possessed excellent durability, which was verified by the good structural integrity even under ultrasonic treatment. The cost-efficiency, high separation and degradation performance of the prepared membrane suggested its great potential for treatment of oily wastewater.
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Affiliation(s)
- Linhua Rao
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
| | - Xiujia You
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
| | - Binghong Chen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
| | - Liguo Shen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
| | - Yanchao Xu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
| | - Meijia Zhang
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
| | - Huachang Hong
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
| | - Renjie Li
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
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Wang X, Luo H, Zheng W, Wang X, Xiao H, Zheng Z. Effects of Polydopamine Microspheres Loaded with Silver Nanoparticles on Lolium multiflorum: Bigger Size, Less Toxic. TOXICS 2021; 9:toxics9070151. [PMID: 34209749 PMCID: PMC8309745 DOI: 10.3390/toxics9070151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/29/2021] [Accepted: 06/02/2021] [Indexed: 02/05/2023]
Abstract
The rapid development of nanotechnology and its widespread use have given rise to serious concerns over the potential adverse impacts of nanomaterials on the Earth’s ecosystems. Among all the nanomaterials, silver nanoparticles (AgNPs) are one of the most extensively used nanomaterials due to their excellent antibacterial property. However, the toxic mechanism of AgNPs in nature is still unclear. One of the questions under debate is whether the toxicity is associated with the size of AgNPs or the silver ions released from AgNPs. In our previous study, a sub-micron hybrid sphere system with polydopamine-stabilized AgNPs (Ag@PDS) was synthesized through a facile and green method, exhibiting superior antibacterial properties. The current study aims to explore the unique toxicity profile of this hybrid sphere system by studying its effect on germination and early growth of Lolium multiflorum, with AgNO3 and 15 nm AgNPs as a comparison. The results showed the seed germination was insensitive/less sensitive to all three reagents; however, vegetative growth was more sensitive. Specifically, when the Ag concentration was lower than 40 mg/L, Ag@PDS almost had no adverse effects on the root and shoot growth of Lolium multiflorum seeds. By contrast, when treated with AgNO3 at a lower Ag concentration of 5 mg/L, the plant growth was inhibited significantly, and was reduced more in the case of AgNP treatment at the same Ag concentration. As the exposures of Ag@PDS, AgNO3, and AgNPs increased, so did the Ag content in the root and shoot. In general, Ag@PDS was proven to be a potential useful hybrid material that retains antibacterial property with light phytotoxicity.
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Affiliation(s)
- Xinrui Wang
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; (X.W.); (H.L.); (X.W.)
| | - Hongyong Luo
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; (X.W.); (H.L.); (X.W.)
| | - Weihua Zheng
- Serionix, Inc. 60 Hazelwood Dr., Champaign, IL 61820, USA;
| | - Xinling Wang
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; (X.W.); (H.L.); (X.W.)
| | - Haijun Xiao
- Central Hospital of Fengxian District, South Hospital of the Sixth People’s Hospital, Shanghai 201499, China
- Correspondence: (H.X.); (Z.Z.)
| | - Zhen Zheng
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; (X.W.); (H.L.); (X.W.)
- Correspondence: (H.X.); (Z.Z.)
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6
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Meng Y, Zhang H, Hu N, Zhang B, Qiu Z, Hu J, Zheng G, Zhang L, Xu X. Construction of silver nanoparticles by the triple helical polysaccharide from black fungus and the antibacterial activities. Int J Biol Macromol 2021; 182:1170-1178. [PMID: 33895177 DOI: 10.1016/j.ijbiomac.2021.04.130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 04/15/2021] [Accepted: 04/18/2021] [Indexed: 02/01/2023]
Abstract
Size controllable silver nanoparticles (AgNPs) were synthesized in situ on the polysaccharides-based nanotubes, which were formed by the triple-helix polysaccharide extracted from black fungus (AF1). The results of transmission electron microscope (TEM), scanning electron microscope (SEM) and energy dispersive spectrometer (EDS) proved that AgNPs with the size from 10-25 nm were uniformly dispersed on the surface of AF1 dendritic nanotubes without affecting their tubular morphology. Moreover, due to the tubular structure, the loaded silver content of the composites (AgNPs and AF1 nanotube, AF1-Ag) could reach about 50% by thermogravimetric analysis (TG) evaluation. Thus, the smaller size of AgNPs and higher silver loading content suggest that the composites could be applied in the biomedical field. The antibacterial properties of AF1-Ag were evaluated as an example in the present work. As expected, the culture medium contained a few of AF1-Ag (10% ω%, c = 50 μg/mL) exhibited obvious antibacterial properties, and the effect of bacteriostasis increased with the increase of the amount of supported silver content. Taken together, the AF1-Ag with good antibacterial activity and good stability has the potential to be applied in the antibacterial field.
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Affiliation(s)
- Yan Meng
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China; College of Chemistry & Molecular Sciences, Wuhan University, Wuhan 430072, China.
| | - Hui Zhang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Na Hu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Baohui Zhang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Zhenpeng Qiu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Junjie Hu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Guohua Zheng
- Key Laboratory of Chinese Medicine Resource and Compound Prescription, Hubei University of Chinese Medicine, Wuhan 430065, China.
| | - Lina Zhang
- College of Chemistry & Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xiaojuan Xu
- College of Chemistry & Molecular Sciences, Wuhan University, Wuhan 430072, China; Hubei Engineering Center of Natural Polymers-based Medical Materials, Wuhan University, Wuhan 430072, China.
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7
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Quy HV, Truyen DH, Kim S, Bark CW. Facile Synthesis of Spherical TiO 2 Hollow Nanospheres with a Diameter of 150 nm for High-Performance Mesoporous Perovskite Solar Cells. MATERIALS 2021; 14:ma14030629. [PMID: 33573053 PMCID: PMC7866397 DOI: 10.3390/ma14030629] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/27/2021] [Accepted: 01/27/2021] [Indexed: 11/16/2022]
Abstract
The electron transport layer (ETL) of organic–inorganic perovskite solar cells plays an important role in their power conversion efficiency (PCE). In this study, TiO2 hollow nanospheres with a diameter of 150 nm were prepared by a facile synthesis method. The synthesized TiO2 hollow nanospheres had a highly porous structure with a surface area of 85.23 m2 g−1, which is significantly higher than commercial TiO2 (P25) (54.32 m2 g−1), indicating that they can form an ideal mesoporous layer for Formamidinium iodide-based perovskite solar cells (PSCs). In addition, the nanospheres achieved a remarkable perovskite performance, and the average PCE increased from 12.87% to 14.27% with a short circuit current density of 22.36 mAcm−2, an open voltage of 0.95 V, and a fill factor of 0.65. The scanning electron microscopy images revealed that the enhanced PCE could be due to the improved carrier collection and transport properties of the nanosphere, which enabled efficient filtration of perovskite into the TiO2 mesoporous ETL. The TiO2 hollow nanospheres fabricated in this study show high potential as a high-quality ETL material for efficient (FAPbI3)0.97(MAPbBr3)0.03-based PSCs.
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Rahman A, Solaiman, Foyez T, Susan MABH, Imran AB. Self‐Healable and Conductive Double‐Network Hydrogels with Bioactive Properties. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Aminur Rahman
- Department of ChemistryFaculty of EngineeringBangladesh University of Engineering and Technology Dhaka 1000 Bangladesh
| | - Solaiman
- Department of ChemistryFaculty of EngineeringBangladesh University of Engineering and Technology Dhaka 1000 Bangladesh
| | - Tahmina Foyez
- Department of Pharmaceutical SciencesSchool of Health & Life SciencesNorth South University Dhaka 1229 Bangladesh
| | | | - Abu Bin Imran
- Department of ChemistryFaculty of EngineeringBangladesh University of Engineering and Technology Dhaka 1000 Bangladesh
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Wang H, Zhang Y, Xu X, Yang F, Li K, Wei D, Liu Z. Efficient loading of silver nanoparticles on graphene oxide and its antibacterial properties. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/ab9546] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Abstract
Graphene oxide contains polyaromatic structure and a variety of oxygen functional groups, which can form π-type metal ion-aromatic or metal ion-oxygen interaction with transition metals, thus it is a promising dispersant and carrier for silver nanoparticles (AgNPs). Herein, silver nanoparticles/reduced graphene oxide (AgNPs/rGO) was fabricated with scalable synthesis method without additional dispersing agent. The mass percent of AgNPs loading on rGO could be adjusted according to the requirement of applications from 1 ∼ 67% of the total weight of AgNPs/rGO with the sizes of AgNPs 10 ∼ 30 nm. AgNPs/rGO exhibited excellent antibacterial activity towards both gram-positive S. aureus and gram-negative E. coli. In addition, AgNPs/rGO could be easily dispersed in liquid silicone rubber, and when the rubber solidified and formed a three-dimensional structure, AgNPs/rGO-silicone rubber has both effective antibacterial property and very low effusion of AgNPs. This composite has potential to be used as a material of bacteriostasis bottles and wound dressings.
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Zu Y, Yan L, Wang T, Ma D, Dong X, Du Z, Yin W. A Bi 2S 3@mSiO 2@Ag nanocomposite for enhanced CT visualization and antibacterial response in the gastrointestinal tract. J Mater Chem B 2020; 8:666-676. [PMID: 31904074 DOI: 10.1039/c9tb02562f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The non-invasive imaging of the gastrointestinal (GI) tract is highly desired for clinical research due to the various GI tract bacterial infection-induced diseases. To treat GI tract infections, various antibiotics have been used in the clinic. The growing problem of multidrug-resistant bacteria calls for effective antibiotic alternatives. Here, we construct a dual-functional Bi2S3@mSiO2@Ag nanocomposite for simultaneous enhanced X-ray computed tomography (CT) imaging and efficient antibacterial activity in the GI tract. The nanocomposite also has good stability, low cytotoxicity, and negligible hemolysis. Moreover, the investigation of the long-term toxicity and biodistribution of the Bi2S3@mSiO2@Ag nanocomposite after oral administration confirms its safety at the tested dosage. In particular, Ag nanoparticles (NPs) well dispersed on a silica substrate can reduce the antibacterial dosage and enhance the antibacterial activity of the Bi2S3@mSiO2@Ag nanocomposite. Furthermore, we have established bacterially infected enteritis animal models to confirm the antibacterial ability of the nanocomposite. This work opens up a new avenue for the design of a nanotheranostic agent that acts as both a contrast agent for the enhanced visualization of the GI tract and an antibacterial agent as an alternative to antibiotics.
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Affiliation(s)
- Yan Zu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
| | - Liang Yan
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
| | - Tao Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
| | - Dongqing Ma
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
| | - Xinghua Dong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
| | - Zhen Du
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
| | - Wenyan Yin
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
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11
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Gonen S, Lori O, Fleker O, Elbaz L. Electrocatalytically Active Silver Organic Framework: Ag(I)‐Complex Incorporated in Activated Carbon. ChemCatChem 2019. [DOI: 10.1002/cctc.201901604] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shmuel Gonen
- Department of ChemistryBar-Ilan University 1 Max and Anna Webb St. Ramat-Gan 5290002 Israel
| | - Oran Lori
- Department of ChemistryBar-Ilan University 1 Max and Anna Webb St. Ramat-Gan 5290002 Israel
| | - Ohad Fleker
- Department of ChemistryBar-Ilan University 1 Max and Anna Webb St. Ramat-Gan 5290002 Israel
| | - Lior Elbaz
- Department of ChemistryBar-Ilan University 1 Max and Anna Webb St. Ramat-Gan 5290002 Israel
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12
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Chen G, Yan L, Wan X, Zhang Q, Wang Q. In Situ Synthesis of Silver Nanoparticles on Cellulose Fibers Using D-Glucuronic Acid and Its Antibacterial Application. MATERIALS 2019; 12:ma12193101. [PMID: 31547568 PMCID: PMC6803989 DOI: 10.3390/ma12193101] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 09/12/2019] [Accepted: 09/19/2019] [Indexed: 12/31/2022]
Abstract
The development of ecofriendly procedures to avoid the use of toxic chemicals for the synthesis of stable silver nanoparticles (AgNPs) is highly desired. In the present study, we reported an eco-friendly and green technique for in situ fabrication of AgNPs on bleached hardwood pulp fibers (bhpFibers) using D-glucuronic acid as the only reducing agent. Different amounts of D-glucuronic acid were introduced and its effect on the size and distribution of AgNPs on the bhpFibers was discussed. The morphology and structures of bhpFibers@AgNPs were proved by electron microscope-dispersive spectroscopy (SEM-EDS), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and X-ray photoelectron spectroscopy (XPS). Then, a series of bhpFibers@AgNPs with different AgNPs loadings were also prepared by adjusting the concentration of the AgNO3 solution. After a papermaking process via vacuum filtration, the prepared papers displayed an outstanding antibacterial performance against Escherichia coli (gram -negative) and Staphylococcus aureus (gram-positive). It is foreseeable that the bhpFibers@AgNPs have a promising application in the field of biomedical.
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Affiliation(s)
- Guangxue Chen
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Linjuan Yan
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Xiaofang Wan
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Qiankun Zhang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Qing Wang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
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Zhou T, Qin Z, Wang X, Wu C, Tang X, Zhang T, Wang H, Xie C, Zeng D. Molecular sieving property adjusted by the encapsulation of Ag nanoparticles into ZnO@ZIF-71 nanorod arrays. Chem Commun (Camb) 2019; 55:11045-11048. [PMID: 31453574 DOI: 10.1039/c9cc04437j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ag NPs are encapsulated into ZIF-71 via a deposition-reduction method. The resulting products are tested as adjustable molecular sieves for hydrogen and acetone. The gas sensing performances show that the response to acetone is reduced and that to hydrogen increased, demonstrating an engineered selectivity. A novel design of molecular sieving MOF materials for gas separation in gas-sensing selectivity is thus provided.
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Affiliation(s)
- Tingting Zhou
- State Key Laboratory of Materials and Processing Die & Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, No. 1037, Luoyu Road, Wuhan 430074, China. and Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei University, Wuhan 430062, China
| | - Ziyu Qin
- State Key Laboratory of Materials and Processing Die & Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, No. 1037, Luoyu Road, Wuhan 430074, China.
| | - Xiaoxia Wang
- State Key Laboratory of Materials and Processing Die & Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, No. 1037, Luoyu Road, Wuhan 430074, China.
| | - Congyi Wu
- State Key Laboratory of Materials and Processing Die & Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, No. 1037, Luoyu Road, Wuhan 430074, China.
| | - Xing Tang
- State Key Laboratory of Materials and Processing Die & Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, No. 1037, Luoyu Road, Wuhan 430074, China.
| | - Tian Zhang
- State Key Laboratory of Materials and Processing Die & Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, No. 1037, Luoyu Road, Wuhan 430074, China.
| | - Hao Wang
- State Key Laboratory of Materials and Processing Die & Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, No. 1037, Luoyu Road, Wuhan 430074, China.
| | - Changsheng Xie
- State Key Laboratory of Materials and Processing Die & Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, No. 1037, Luoyu Road, Wuhan 430074, China.
| | - Dawen Zeng
- State Key Laboratory of Materials and Processing Die & Mould Technology, Nanomaterials and Smart Sensors Research Laboratory, Department of Materials Science and Engineering, Huazhong University of Science and Technology, No. 1037, Luoyu Road, Wuhan 430074, China. and Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei University, Wuhan 430062, China
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14
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Mao H, Cheng F, Lei C, Feng Z, Wang Q, Chu B, Kong Y, Tao Y, Yao C, Zuo S. Hydrothermal Fabrication of Fe3O4@Carbonaceous Microspheres for Efficient Removal of Oil and Metal Ions from the Aqueous Phase. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03415] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Huihui Mao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu Province 213164, P. R China
| | - Fei Cheng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu Province 213164, P. R China
| | - Chong Lei
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu Province 213164, P. R China
| | - Zhengyu Feng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu Province 213164, P. R China
| | - Qianqian Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu Province 213164, P. R China
| | - Baolin Chu
- State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Center, Beijing 100012, P. R China
| | - Yong Kong
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu Province 213164, P. R China
| | - Yongxin Tao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu Province 213164, P. R China
| | - Chao Yao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu Province 213164, P. R China
| | - Shixiang Zuo
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu Province 213164, P. R China
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15
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Fan X, Liu Y, Wang X, Quan X, Chen S. Improvement of Antifouling and Antimicrobial Abilities on Silver-Carbon Nanotube Based Membranes under Electrochemical Assistance. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:5292-5300. [PMID: 30933494 DOI: 10.1021/acs.est.9b00313] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Excellent fouling resistance to various foulants is crucial to maintain the separation performance of membranes in providing potable water. Antimicrobial modification is effective for antibiofouling but fails to mitigate organic fouling. Improving surface charges can improve the resistance to charged foulants, but the lack of antimicrobial ability results in bacterial aggregation. Herein, a silver nanoparticle modified carbon nanotube (Ag-CNT)/ceramic membrane was prepared with enhanced antifouling and antimicrobial properties under electrochemical assistance. The presence of silver nanoparticles endows the composite membrane with antimicrobial ability by which biofilm formation is inhibited. Its steady-state flux is 1.9 times higher than that for an unmodified membrane in filtering bacterial suspension. Although the formation of organic fouling did weaken the biofouling resistance, the negatively charged bacteria and organic matter can be sufficiently repelled away from the cathodic membrane under electrochemical assistance. The flux loss under a low-voltage of 2.0 V decreased to <10% from >35% for the membrane alone when bacteria and organic matter coexisted in the feedwater. More importantly, silver dissolution was significantly inhibited via an in situ electroreduction process by which the Ag+ concentration in the effluent (<1.0 μg/L) was about 2 orders of magnitude lower than that without voltage. The integration of antimicrobial modification and electrochemistry offers a new prospect in the development of membranes with high fouling resistance in water treatment.
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Affiliation(s)
- Xinfei Fan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
- College of Environmental Science and Engineering , Dalian Maritime University , Dalian 116026 , China
| | - Yanming Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Xiaochen Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Xie Quan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Shuo Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
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16
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Lan S, Lu Y, Li C, Zhao S, Liu N, Sheng X. Sesbania Gum-Supported Hydrophilic Electrospun Fibers Containing Nanosilver with Superior Antibacterial Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E592. [PMID: 30974842 PMCID: PMC6523858 DOI: 10.3390/nano9040592] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/04/2019] [Accepted: 04/05/2019] [Indexed: 11/16/2022]
Abstract
In this contribution, we report for the first time on a new strategy for developing sesbania gum-supported hydrophilic fibers containing nanosilver using electrospinning (SG-Ag/PAN electrospun fibers), which gives the fibers superior antibacterial activity. Employing a series of advanced technologies-scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, UV-visible absorption spectroscopy, X-ray photoelectron spectroscopy, and contact angle testing-we characterized the as-synthesized SG-Ag/PAN electrospun fibers in terms of morphology, size, surface state, chemical composition, and hydrophilicity. By adjusting the synthesis conditions, in particular the feed ratio of sesbania gum (SG) and polyacrylonitrile (PAN) to Ag nanoparticles (NPs), we regulated the morphology and size of the as-electrospun fibers. The fibers' antibacterial properties were examined using the colony-counting method with two model bacteria: Escherichia coli (a Gram-negative bacterium) and Staphylococcus aureus (a Gram-positive bacterium). Interestingly, compared to Ag/PAN and SG-PAN electrospun fibers, the final SG-Ag/PAN showed enhanced antibacterial activity towards both of the model bacteria due to the combination of antibacterial Ag NPs and hydrophilic SG, which enabled the fibers to have sufficient contact with the bacteria. We believe this strategy has great potential for applications in antibacterial-related fields.
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Affiliation(s)
- Shi Lan
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
| | - Yaning Lu
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
| | - Chun Li
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
| | - Shuang Zhao
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
| | - Naren Liu
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
| | - Xianliang Sheng
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
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17
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Bilal M, Zhao Y, Rasheed T, Ahmed I, Hassan STS, Nawaz MZ, Iqbal HMN. Biogenic Nanoparticle‒Chitosan Conjugates with Antimicrobial, Antibiofilm, and Anticancer Potentialities: Development and Characterization. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16040598. [PMID: 30791374 PMCID: PMC6406235 DOI: 10.3390/ijerph16040598] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/31/2019] [Accepted: 02/14/2019] [Indexed: 02/05/2023]
Abstract
In the 21st century, with ever-increasing consciousness and social awareness, researchers must tackle the microbial infections that pose a major threat to human safety. For many reasons, the emergence/re-emergence of threatening pathogens has increased and poses a serious challenge to health care services. Considering the changing dynamics of 21st-century materials with medical potentialities, the integration of bioactive agents into materials to engineer antibacterial matrices has received limited attention so far. Thus, antimicrobial active conjugates are considered potential candidates to eradicate infections and reduce microbial contaminations in healthcare facilities. In this context, eco-friendly and novel conjugates with antimicrobial, antibiofilm, and anticancer potentialities were developed using biogenic silver nanoparticles (AgNPs) from Convolvulus arvensis (C. arvensis) extract and chitosan (CHI). A range of instrumental and imaging tools, i.e., UV-Vis and FTIR spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDX), and X-ray diffraction (XRD), were employed to characterize the freshly extracted C. arvensis AgNPs. Biogenic AgNPs obtained after a 24-h reaction period were used to engineer CHI-based conjugates and designated as CHI‒AgNPs1 to CHI‒AgNPs5, subject to the C. arvensis AgNPs concentration. After the stipulated loading period, 92% loading efficiency (LE) was recorded for a CHI‒AgNPs3 conjugate. Gram+ and Gram- bacterial isolates, i.e., Staphylococcus aureus, and Escherichia coli, were used to test the antibacterial activities of newly developed CHI‒AgNPs conjugates. In comparison to the control sample with bacterial cell count 1.5 × 10⁸ CFU/mL, a notable reduction in the log values was recorded for the CHI‒AgNPs3 conjugate. The antibiofilm potential of CHI‒AgNPs conjugates was tested against Pseudomonas aeruginosa. Moreover, the CHI‒AgNPs3 conjugate also showed substantial cytotoxicity against the MCF-7 (breast cancer) cell line. In summary, the newly engineered CHI‒AgNPs conjugates with antibacterial, antibiofilm, and anticancer potentialities are potential candidate materials for biomedical applications.
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Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Yuping Zhao
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Tahir Rasheed
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Ishtiaq Ahmed
- School of Medical Science, Menzies Health Institute Queensland, Griffith University (Gold Coast campus), Parklands Drive, Southport, QLD 4222, Australia.
| | - Sherif T S Hassan
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42 Brno, Czech Republic.
| | - Muhammad Zohaib Nawaz
- Department of Computer Science, Center for Advanced Studies in Agriculture and Food Security, University of Agriculture, Faisalabad 38040, Pakistan.
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico.
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18
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El-Yazeed WSA, Ahmed AI. Monometallic and bimetallic Cu–Ag MOF/MCM-41 composites: structural characterization and catalytic activity. RSC Adv 2019; 9:18803-18813. [PMID: 35516892 PMCID: PMC9064976 DOI: 10.1039/c9ra03310f] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 06/07/2019] [Indexed: 12/17/2022] Open
Abstract
Monometallic and bimetallic MOF/MCM-41 composites (Cu, Ag and Cu–Ag) were synthesized via a solvothermal method. The synthesized composites were characterized by XRD, FTIR, SEM, EDX and BET surface area measurements. The acidity was determined through two techniques; potentiometric titration with n-butyl amine for determining the strength and the total number of acid sites and FTIR spectra of chemisorbed pyridine on the surface of MOFs for determining the type of acid sites (Brønsted and/or Lewis). All the prepared MOFs showed Lewis-acid sites and the higher acidity was observed for the bimetallic Cu–Ag MOF/MCM-41 composite. The catalytic activity was examined on the synthesis of 1-amidoalkyl-2-naphthol via the reaction of benzaldehyde, 2-naphthol and benzamide. The best yield (92.86%) was obtained in the least time (10 min) with a molar ratio 1.2 : 1.2 : 1.7 of benzaldehyde : β-naphthol : benzamide and 0.1 g bimetallic Cu–Ag MOF/MCM-41 composite under solvent-free conditions at 130 °C. Reuse of the catalysts showed that they could be used at least four times without any reduction in the catalytic activity. Monometallic and bimetallic MOF/MCM-41 composites (Cu, Ag and Cu–Ag) were synthesized via a solvothermal method.![]()
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Affiliation(s)
| | - Awad I. Ahmed
- Chemistry Department
- Faculty of Science
- Mansoura University
- Mansoura
- Egypt
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19
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Wang X, Hao X, Chang D, Zhu C, Chen L, Dong A, Gao G. Novel hydrophilicN-halamine polymer with enhanced antibacterial activity synthesized by inverse emulsion polymerization. J Appl Polym Sci 2018. [DOI: 10.1002/app.47419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiao Wang
- College of Chemistry; Jilin University; Changchun 130021 People's Republic of China
| | - Xiufeng Hao
- College of Chemistry; Jilin University; Changchun 130021 People's Republic of China
| | - Dan Chang
- College of Chemistry; Jilin University; Changchun 130021 People's Republic of China
| | - Chongyi Zhu
- College of Chemistry; Jilin University; Changchun 130021 People's Republic of China
| | - Lili Chen
- College of Chemistry; Jilin University; Changchun 130021 People's Republic of China
| | - Alideertu Dong
- College of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 People's Republic of China
| | - Ge Gao
- College of Chemistry; Jilin University; Changchun 130021 People's Republic of China
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20
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Khan ME, Khan MM, Cho MH. Recent progress of metal-graphene nanostructures in photocatalysis. NANOSCALE 2018; 10:9427-9440. [PMID: 29762624 DOI: 10.1039/c8nr03500h] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Metal-graphene nanostructures (NSs) as photocatalysts, prepared using simple and scalable synthesis methods, are gaining heightened attention as novel materials for water treatment and environmental remediation applications. Graphene, the unique few layers sheet-like arrangement of sp2 hybridized carbon atoms, has an inimitable two-dimensional (2D) structure. The material is highly conductive, has high electron mobility and an extremely high surface area, and can be produced on a large scale at low cost. Accordingly, it has been considered as an essential base component for producing various metal-based NSs. In particular, metal-graphene NSs as photocatalysts have attracted considerable attention because of their special surface plasmon resonance (SPR) effect that can improve their performance for the removal of toxic dyes and other pollutants. This review summarizes the recent and advanced progress for the easy fabrication and design of graphene-based NSs as photocatalysts, as a novel tool, using a range of approaches, including green and biogenic approaches.
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Affiliation(s)
- Mohammad Ehtisham Khan
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 38541, South Korea.
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21
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Li C, Lin F, Sun W, Wu FG, Yang H, Lv R, Zhu YX, Jia HR, Wang C, Gao G, Chen Z. Self-Assembled Rose Bengal-Exopolysaccharide Nanoparticles for Improved Photodynamic Inactivation of Bacteria by Enhancing Singlet Oxygen Generation Directly in the Solution. ACS APPLIED MATERIALS & INTERFACES 2018; 10:16715-16722. [PMID: 29641169 DOI: 10.1021/acsami.8b01545] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
It is of great value to develop new antibacterial photodynamic therapy (PDT) strategies to improve antibacterial PDT efficacy of noncationic photosensitizers without introducing cytotoxicity, which is a great challenge for current leading efforts on antimicrobial PDT based on cell surface engineering. In this research, the hydrophobic and anionic photosensitizer rose bengal (RB) was chemically conjugated with bacterial exopolysaccharide (EPS) to generate an amphiphilic and negatively charged compound EPS-RB that could self-assemble into nanoparticles (NPs) in solution. These EPS-RB NPs possessed an increased singlet oxygen generation property in solution. As a result, EPS-RB exhibited improved photoinactivation for both Gram-negative and Gram-positive bacteria, leading to a record low RB working concentration, 8 μM or 500 nM for Escherichia coli or Staphylococcus aureus, respectively. Upon light irradiation, more EPS-RB bound to the cell surface and penetrated into bacteria than RB, with EPS-RB staying around the cell surface of the most irradiated E. coli while entering all irradiated S. aureus. Both scanning electron microscopy and fluorescence confocal imaging results show that the cell membrane of E. coli was damaged heavily but not S. aureus. All of these observations indicate that both the enhanced singlet oxygen production of EPS-RB NPs in solution and their consequently increased membrane binding and cellular penetration into the bacteria through the damaged cell membrane contribute to their significantly improved bacterial photoinactivation efficiency. In addition, EPS-RB has low cytotoxicity and negligible hemolytic activity, showing great biocompatibility. Therefore, the construction of EPS-RB provides a new strategy for the PDT effectiveness improvement of the separated cell/sensitizer systems and thus the design of next-generation antimicrobial agents.
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Affiliation(s)
- Chengcheng Li
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Fengming Lin
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Wei Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Fu-Gen Wu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Hang Yang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Roujing Lv
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Ya-Xuan Zhu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Hao-Ran Jia
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Chu Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Ge Gao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering , Southeast University , Nanjing 210096 , China
| | - Zhan Chen
- Department of Chemistry , University of Michigan , 930 North University Avenue , Ann Arbor , Michigan 48109 , United States
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22
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Chang D, li Z, Wang X, Zhu C, Dong A, Gao G. N-Halamine polymer from bipolymer to amphiphilic terpolymer with enhancement in antibacterial activity. Colloids Surf B Biointerfaces 2018; 163:402-411. [DOI: 10.1016/j.colsurfb.2018.01.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 12/05/2017] [Accepted: 01/10/2018] [Indexed: 01/03/2023]
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23
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Lin F, Li C, Chen Z. Bacteria-Derived Carbon Dots Inhibit Biofilm Formation of Escherichia coli without Affecting Cell Growth. Front Microbiol 2018; 9:259. [PMID: 29503644 PMCID: PMC5820432 DOI: 10.3389/fmicb.2018.00259] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 02/01/2018] [Indexed: 12/12/2022] Open
Abstract
Biofilms are deleterious in many biomedical and industrial applications and prevention of their formation has been a pressing challenge. Here, carbon dots, CDs-LP that were easily synthesized from the biomass of Lactobacillus plantarum by one-step hydrothermal carbonization, were demonstrated to prevent biofilm formation of E. coli. CDs-LP did not thwart the growth of E. coli, indicating the anti-biofilm effect was not due to the bactericidal effect. Moreover, CDs-LP did not affect the growth of the animal cell AT II, showing low cytotoxicity, good safety and excellent biocompatibility. Therefore, CDs-LP could overcome the cytotoxicity issue found in many current antibiofilm agents. CDs-LP represent a new type of anti-biofilm materials, opening up a novel avenue to the development of biofilm treatment.
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Affiliation(s)
- Fengming Lin
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Chengcheng Li
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Zhan Chen
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
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24
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Bhattacharjee K, Palepu NR, Rao KM, Joshi SR. Precursor-directed combinatorial biosynthesis of cephalosporin analogue by endolithic actinobacterium Streptomyces sp. AL51 by utilizing thiophene derivative. 3 Biotech 2018; 8:31. [PMID: 29291144 DOI: 10.1007/s13205-017-1051-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 12/17/2017] [Indexed: 12/16/2022] Open
Abstract
Natural products or their derivatives provide a reliable resource for new drugs. The multi-step chemical reaction to produce new drug is not only expensive but also release pollutants. The precursor-based combinatorial biosynthesis (PCB) is, however, a better option to produce novel natural products with potential pharmaceutical applications. The present work is an attempt to synthesize an antibacterial compound by transforming thiophene precursor using endolithic Streptomyces sp. AL51. The Streptomyces sp. AL51 was isolated from a granite rock sample collected from Mylliem, Meghalaya, India. The isolate was identified as Streptomyces sp. based on its cultural, morphological, biochemical and molecular characteristics. The bioactive compound CAx1 was extracted from the fermentation broth. The compound was characterized by bioactivity-guided fractionation and identified by infrared, UV-visible, nuclear magnetic resonance and mass spectrometry data and identified as 7-[1-(thiophene-5-yl)-1-formamido]-3-propylenyl-3-cephem-4-carboxylic acid with molecular formula C15H14N2O4S2. The purified compound showed considerable in vitro antibacterial activity against both Gram-positive and Gram-negative bacteria showing its broad spectrum property. The obtained results provide promising baseline information for the potential use of endolithic actinobacterium for semisynthetic drug discovery. This is the first report on PCB of broad range antibacterial compound by endolithic Streptomyces strain.
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25
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Jiang YW, Gao G, Zhang X, Jia HR, Wu FG. Antimicrobial carbon nanospheres. NANOSCALE 2017; 9:15786-15795. [PMID: 28819664 DOI: 10.1039/c7nr04679k] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Carbon nanomaterials have found numerous applications in various fields. However, their synthesis and functionalization usually require complicated procedures or tough experimental conditions. Herein, we report for the first time the synthesis of a new type of functional nanomaterial, quaternized carbon nanospheres (QCNSs), with superior antibacterial activity via a one-pot hydrothermal treatment of chitosan and hexadecylbetaine (abbreviated as BS-16). During the hydrothermal process, the direct reaction and carbonization between the amine-containing chitosan and the carboxyl-containing BS-16 were realized within only one step. The as-prepared QCNSs feature a well-defined spherical morphology and a homogeneous size distribution with an average diameter of ∼110 nm. In particular, the QCNSs could effectively kill Gram-positive bacteria with a minimum inhibitory concentration (MIC) of 2.0-5.0 μg mL-1. Meanwhile, the QCNSs showed excellent cytocompatibility towards normal human liver and lung cells and good hemocompatibility towards red blood cells. Moreover, in bacteria-infected macrophage cells, the QCNSs could selectively kill bacteria while the macrophage cells remained unaffected, which further confirmed their biocompatibility. Besides, we have also elucidated the antibacterial mechanism of the QCNSs by disrupting the bacterial cell walls/membranes via the bacterial adsorption and insertion of the long alkyl chain-containing quaternary ammonium groups on the particle surface. The present work provides a novel method for the preparation of functional carbon nanomaterials, which may promote the development of metal-free antibacterial agents.
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Affiliation(s)
- Yao-Wen Jiang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China.
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26
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Bhattacharjee K, Kumar S, Palepu NR, Patra PK, Rao KM, Joshi SR. Structure elucidation and in silico docking studies of a novel furopyrimidine antibiotics synthesized by endolithic bacterium Actinomadura sp. AL2. World J Microbiol Biotechnol 2017; 33:178. [PMID: 28932951 DOI: 10.1007/s11274-017-2343-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 09/16/2017] [Indexed: 12/11/2022]
Abstract
On screening of endolithic actinobacteria from a granite rock sample of Meghalaya for antibacterial compound, a novel antibacterial compound CCp1 was isolated from the fermentation broth of Actinomadura sp. AL2. On purification of the compound based on chromatographic techniques followed by characterization with FT-IR, UV-visible, 1H NMR, 13C NMR and mass spectrometry, the molecular formula of the compound was generated as C20H17N3O2, a furopyrimidine derivative. In vitro antibacterial activity of the compound was evaluated against both Gram positive and negative bacteria by agar well diffusion assay. The compound had lowest MIC (2.00 µg/ml) for Bacillus subtilis and highest MIC (> 64 µg/ml) for Staphylococcus epidermidis and Pseudomonas aeruginosa. The study revealed that the compound has potential antibacterial activity. The mode of action of the antibacterial compound was evaluated through in silico studies for its ability to bind DNA gyrase, 30S RNA molecules, OmpF porins and N-Acetylglucosamine-1-phosphate uridyltransferase (GlmU). The antibacterial compound demonstrated more favorable docking with DNA gyrase, 30S RNA molecules and OmpF porins than GlmU which support the antibacterial compound CCp1 can be as a promising broad spectrum antibiotic agent with "multitarget" characteristics.
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Affiliation(s)
- Kaushik Bhattacharjee
- Microbiology Laboratory, Department of Biotechnology & Bioinformatics, North-Eastern Hill University, Shillong, 793022, India
| | - Shakti Kumar
- Bioinformatics Center (ICMR), Department of Biochemistry, Pt. Jawaharlal Nehru Memorial Medical College, Raipur, India
| | - Narasinga Rao Palepu
- Centre for Advanced Studies in Chemistry, North-Eastern Hill University, Shillong, India
| | - Pradeep Kumar Patra
- Department of Biochemistry, Pt. Jawaharlal Nehru Memorial Medical College, Raipur, India
| | - Kollipara Mohan Rao
- Centre for Advanced Studies in Chemistry, North-Eastern Hill University, Shillong, India
| | - Santa Ram Joshi
- Microbiology Laboratory, Department of Biotechnology & Bioinformatics, North-Eastern Hill University, Shillong, 793022, India.
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27
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Zhang Z, Wu Y, Wang Z, Zhang X, Zhao Y, Sun L. Electrospinning of Ag Nanowires/polyvinyl alcohol hybrid nanofibers for their antibacterial properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:706-714. [DOI: 10.1016/j.msec.2017.04.138] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 04/07/2017] [Indexed: 10/19/2022]
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28
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Facile one-pot fabrication of Ag@MOF(Ag) nanocomposites for highly selective detection of 2,4,6-trinitrophenol in aqueous phase. Talanta 2017; 170:146-151. [DOI: 10.1016/j.talanta.2017.03.096] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 03/25/2017] [Accepted: 03/29/2017] [Indexed: 11/21/2022]
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29
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Lai CS, Chen YC, Wang HF, Ho HC, Ho RM, Tsai DH. Gas-phase self-assembly of uniform silica nanostructures decorated and doped with silver nanoparticles. NANOTECHNOLOGY 2017; 28:035602. [PMID: 27928994 DOI: 10.1088/1361-6528/28/3/035602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report a systematic study of the controlled gas-phase synthesis of silver-silica hybrid nanostructures (Ag-SiO2 NP) using the concept of evaporation-induced self-assembly. The approach includes the use of a direct gas-phase electrophoresis for size classification and in situ characterization of mobility size. Transmission electron microscopy and ultraviolet-visible light spectroscopy were employed complementarily to determine the morphology and surface plasmon resonance of Ag-SiO2 NP. Results show that two types of Ag-SiO2 NPs were successfully synthesized: (1) AgNPs decorated on a SiO2-NP (Ag-T-SiO2 NP), and (2) AgNPs doped in a cluster of SiO2-NPs (Ag-C-SiO2 NP). The physical size, morphology, and compositions of Ag-SiO2 NPs were tunable through the adjustments of precursor concentrations and the selected mobility sizes. The results also show that SPR performance, colloidal stability, and dispersibility of AgNPs enhanced significantly in an aqueous environment after the hybridization with SiO2-NP (especially for Ag-C-SiO2 NP). The results and corresponding methodology summarized here provide the proof of concept to fabricate high-purity AgNP-based hybrid nanostructures through gas-phase evaporation-induced self-assembly for future biomedical applications (e.g., hyperthermal therapy, targeted drug delivery, and antibacterial applications).
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Affiliation(s)
- Chao-Shun Lai
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
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30
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Cui J, Liang Y, Yang D, Liu Y. Facile fabrication of rice husk based silicon dioxide nanospheres loaded with silver nanoparticles as a rice antibacterial agent. Sci Rep 2016; 6:21423. [PMID: 26888152 PMCID: PMC4757824 DOI: 10.1038/srep21423] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 01/07/2016] [Indexed: 11/28/2022] Open
Abstract
Bacterial leaf blight of rice caused by Xanthomonas oryzae pv. oryzae (Xoo) is a major disease of rice, leading to reduction in production by 10-50%. In order to control this disease, various chemical bactericides have been used. Wide and prolonged application of chemical bactericides resulted in the resistant strain of Xoo that was isolated from rice. To address this problem, we were searching for an environmentally friendly alternative to the commonly used chemical bactericides. In this work, we demonstrate that silicon dioxide nanospheres loaded with silver nanoparticles (SiO2-Ag) can be prepared by using rice husk as base material precursor. The results of the antibacterial tests showed that SiO2-Ag composites displayed antibacterial activity against Xoo. At cellular level, the cell wall/membrane was damaged and intercellular contents were leaked out by slow-releasing of silver ions from SiO2-Ag composites. At molecular level, this composite induced reactive oxygen species production and inhibited DNA replication. Based on the results above, we proposed the potential antibacterial mechanism of SiO2-Ag composites. Moreover, the cytotoxicity assay indicated that the composites showed mild toxicity with rice cells. Thus, this work provided a new strategy to develop biocide derived from residual biomass.
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Affiliation(s)
- Jianghu Cui
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, Guang dong, P. R. China
- Guangdong Key Laboratory of Agricultural Environment Pollution Integrated Control, Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, P. R. China
| | - You Liang
- College of Agriculture, Shihezi University, Shihezi 832000, Xinjiang, P. R. China
| | - Desong Yang
- College of Agriculture, Shihezi University, Shihezi 832000, Xinjiang, P. R. China
| | - Yingliang Liu
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, Guang dong, P. R. China
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31
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Peng N, Wang Y, Ye Q, Liang L, An Y, Li Q, Chang C. Biocompatible cellulose-based superabsorbent hydrogels with antimicrobial activity. Carbohydr Polym 2016; 137:59-64. [DOI: 10.1016/j.carbpol.2015.10.057] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 10/06/2015] [Accepted: 10/15/2015] [Indexed: 01/08/2023]
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32
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Tang Y, Hao R, Fu Y, Jiang Y, Zhang X, Pan Q, Jiang B. Carbon quantum dot/mixed crystal TiO2 composites via a hydrogenation process: an efficient photocatalyst for the hydrogen evolution reaction. RSC Adv 2016. [DOI: 10.1039/c6ra17597j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
High-performance photocatalyst including mixed crystal TiO2/carbon quantum dots was obtained via a facile approach, which exhibited excellent property for hydrogen evolution under solar light.
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Affiliation(s)
- Yunqi Tang
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People’s Republic of China
- Heilongjiang University
- Harbin 150080
- China
| | - Rong Hao
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People’s Republic of China
- Heilongjiang University
- Harbin 150080
- China
| | - Yu Fu
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People’s Republic of China
- Heilongjiang University
- Harbin 150080
- China
| | - Yong Jiang
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People’s Republic of China
- Heilongjiang University
- Harbin 150080
- China
| | - Xiangcheng Zhang
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People’s Republic of China
- Heilongjiang University
- Harbin 150080
- China
| | - Qingjiang Pan
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People’s Republic of China
- Heilongjiang University
- Harbin 150080
- China
| | - Baojiang Jiang
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People’s Republic of China
- Heilongjiang University
- Harbin 150080
- China
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33
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Kang J, Han J, Gao Y, Gao T, Lan S, Xiao L, Zhang Y, Gao G, Chokto H, Dong A. Unexpected Enhancement in Antibacterial Activity of N-Halamine Polymers from Spheres to Fibers. ACS APPLIED MATERIALS & INTERFACES 2015; 7:17516-17526. [PMID: 26191972 DOI: 10.1021/acsami.5b05429] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Preventing bacterial infections is a main focus of medical care. Antibacterial agents with broad and excellent disinfection capability against pathogenic bacteria are in fact urgently required. Herein, a novel strategy for the development of N-halamine polymers from spheres to fibers using a combined copolymerization-electrospinning-chlorination technique was reported, allowing fight against bacterial pathogen. Optimizing the process conditions, e.g., comonomer molar ratio, concentration of electrospinning solution, chlorination order, and chlorination period, resulted in the formation of N-halamine fibers with controllable morphology. N-Halamine polymers were tested against two common bacterial pathogens, Escherichia coli and Staphylococcus aureus, and were found to be extremely potent against both bacteria, suggesting that they possess powerful sterilizing properties. Remarkably, compared with those with sphere morphology, N-halamine fibers show unexpected enhancement toward both pathogens possibly because of their shape (fiber morphology), surface state (rough surfaces), and surface charge (positive zeta potentials). It is believed that this approach has great potential to be utilized in various fields where antifouling and antibacterial properties are highly required.
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Affiliation(s)
- Jing Kang
- †College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Jinsong Han
- †College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Yangyang Gao
- †College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Tianyi Gao
- †College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Shi Lan
- ‡College of Science, Inner Mongolia Agricultural University, Hohhot 010018, People's Republic of China
| | - Linghan Xiao
- §College of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, People's Republic of China
| | - Yanling Zhang
- †College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Ge Gao
- ⊥College of Chemistry, Jilin University, Changchun 130021, People's Republic of China
| | - Harnoode Chokto
- †College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Alideertu Dong
- †College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
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34
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Gao Y, Dong Q, Lan S, Cai Q, Simalou O, Zhang S, Gao G, Chokto H, Dong A. Decorating CdTe QD-Embedded Mesoporous Silica Nanospheres with Ag NPs to Prevent Bacteria Invasion for Enhanced Anticounterfeit Applications. ACS APPLIED MATERIALS & INTERFACES 2015; 7:10022-10033. [PMID: 25901940 DOI: 10.1021/acsami.5b02472] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Quantum dots (QDs) as potent candidates possess advantageous superiority in fluorescence imaging applications, but they are susceptible to the biological circumstances (e.g., bacterial environment), leading to fluorescence quenching or lose of fluorescent properties. In this work, CdTe QDs were embedded into mesoporous silica nanospheres (m-SiO2 NSs) for preventing QD agglomeration, and then CdTe QD-embedded m-SiO2 NSs (m-SiO2/CdTe NSs) were modified with Ag nanoparticles (Ag NPs) to prevent bacteria invasion for enhanced anticounterfeit applications. The m-SiO2 NSs, which serve as intermediate layers to combine CdTe QDs with Ag NPs, help us establish a highly fluorescent and long-term antibacterial system (i.e., m-SiO2/CdTe/Ag NSs). More importantly, CdTe QD-embedded m-SiO2 NSs showed fluorescence quenching when they encounter bacteria, which was avoided by attaching Ag NPs outside. Ag NPs are superior to CdTe QDs for preventing bacteria invasion because of the structure (well-dispersed Ag NPs), size (small diameter), and surface charge (positive zeta potentials) of Ag NPs. The plausible antibacterial mechanisms of m-SiO2/CdTe/Ag NSs toward both Gram-positive and Gram-negative bacteria were established. As for potential applications, m-SiO2/CdTe/Ag NSs were developed as fluorescent anticounterfeiting ink for enhanced imaging applications.
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Affiliation(s)
| | | | - Shi Lan
- ⊥College of Science, Inner Mongolia Agricultural University, Hohhot 010018, People's Republic of China
| | | | - Oudjaniyobi Simalou
- ||Département de Chimie, Faculté Des Sciences (FDS), Université de Lomé (UL), BP 1515 Lome, Togo
| | - Shiqi Zhang
- #PhD School of Materiaux, Mechanics, Environnement, Energy, Process and Production Engineering (I-MEP2), University of Grenoble, Grenoble 38031, France
| | - Ge Gao
- △College of Chemistry, Jilin University, Changchun 130021, People's Republic of China
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35
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Chen R, Wang Q, Li Y, Gu Y, Tang L, Li C, Zhang Z. One-pot green synthesis of Ag/AgCl nanocube/reduced graphene oxide and its application to the simultaneous determination of hydroquinone and catechol. RSC Adv 2015. [DOI: 10.1039/c5ra04128g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Uniformly dispersed Ag/AgCl nanocubes (AgNC) were successfully obtained on reduced graphene oxide (rGO) through the simultaneous reduction of Ag+and graphene oxide (GO) by chitosan in the presence of a little HCl.
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Affiliation(s)
- Ruixue Chen
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun
- China
| | - Qingqing Wang
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun
- China
| | - Yaru Li
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun
- China
| | - Yue Gu
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun
- China
| | - Liu Tang
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun
- China
| | - Cong Li
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun
- China
| | - Zhiquan Zhang
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun
- China
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36
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Cui J, Liu Y. Preparation of graphene oxide with silver nanowires to enhance antibacterial properties and cell compatibility. RSC Adv 2015. [DOI: 10.1039/c5ra16371d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ag NWs were evenly distributed on the surface of graphene oxide sheets via a hydrothermal method. The prepared composites exhibited an enhanced antibacterial effect and good cell compatibility.
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Affiliation(s)
- Jianghu Cui
- Guangdong Key Laboratory of Agricultural Environment Pollution Integrated Control
- Guangdong Institute of Eco-Environmental and Soil Sciences
- Guangzhou 510650
- China
| | - Yingliang Liu
- College of Materials and Energy
- South China Agricultural University
- Guangzhou
- P R China
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37
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Luo H, Gu C, Zheng W, Dai F, Wang X, Zheng Z. Facile synthesis of novel size-controlled antibacterial hybrid spheres using silver nanoparticles loaded with poly-dopamine spheres. RSC Adv 2015. [DOI: 10.1039/c4ra16469e] [Citation(s) in RCA: 180] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Sub-micrometer hybrid spheres with a poly-dopamine core and loaded with silver nanoparticles (NPs) were fabricated by a facile method. The new hybrid spheres show a strong antibacterial activity due to their special structure, effectively preventing silver NP aggregation.
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Affiliation(s)
- Hongyong Luo
- School of Chemical and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Changwei Gu
- School of Chemical and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | | | - Fei Dai
- School of Chemical and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Xinling Wang
- School of Chemical and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Zhen Zheng
- School of Chemical and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
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38
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Yan L, Hao Y, Feng X, Yang Y, Liu X, Chen Y, Xu B. Synthesis and optical properties of composite films from P3HT and sandwich-like Ag–C–Ag nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra16854f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sandwich-like Ag–C–Ag nanoparticles (Ag–C–Ag NPs) were synthesized under mild hydrothermal conditions in a one-step method with Ag encapsulated in the centre, uniformly dispersed in a carbon matrix and on a carbon shell.
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Affiliation(s)
- Lingpeng Yan
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Yamin Hao
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Xiaoting Feng
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Yongzhen Yang
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Xuguang Liu
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Yongkang Chen
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Bingshe Xu
- Key Laboratory of Interface Science and Engineering in Advanced Materials
- Ministry of Education
- Taiyuan University of Technology
- Taiyuan 030024
- China
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39
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Tang C, Sun W, Yan W. Green and facile fabrication of silver nanoparticles loaded activated carbon fibers with long-lasting antibacterial activity. RSC Adv 2014. [DOI: 10.1039/c3ra44799e] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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40
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Fei X, Jia M, Du X, Yang Y, Zhang R, Shao Z, Zhao X, Chen X. Green Synthesis of Silk Fibroin-Silver Nanoparticle Composites with Effective Antibacterial and Biofilm-Disrupting Properties. Biomacromolecules 2013; 14:4483-8. [DOI: 10.1021/bm4014149] [Citation(s) in RCA: 131] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xiang Fei
- State
Key Laboratory of Molecular Engineering of Polymers, Department of
Macromolecular Science, Laboratory of Advanced Materials, Fudan University, Shanghai, 200433, People’s Republic of China
| | | | | | - Yuhong Yang
- Research
Centre for Analysis and Measurement, Fudan University, Shanghai 200433, People’s Republic of China
| | - Ren Zhang
- Research
Centre for Analysis and Measurement, Fudan University, Shanghai 200433, People’s Republic of China
| | - Zhengzhong Shao
- State
Key Laboratory of Molecular Engineering of Polymers, Department of
Macromolecular Science, Laboratory of Advanced Materials, Fudan University, Shanghai, 200433, People’s Republic of China
| | | | - Xin Chen
- State
Key Laboratory of Molecular Engineering of Polymers, Department of
Macromolecular Science, Laboratory of Advanced Materials, Fudan University, Shanghai, 200433, People’s Republic of China
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41
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Zhu Z, Su M, Ma L, Ma L, Liu D, Wang Z. Preparation of graphene oxide-silver nanoparticle nanohybrids with highly antibacterial capability. Talanta 2013; 117:449-55. [PMID: 24209367 DOI: 10.1016/j.talanta.2013.09.017] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Revised: 09/05/2013] [Accepted: 09/11/2013] [Indexed: 12/21/2022]
Abstract
A simple method based on electrostatic interactions was utilized to assemble silver nanoparticles (AgNPs) to graphene oxide (GO) sheets. This method allows conjugation of AgNPs with desired morphologies (densities, sizes and shapes) onto GO. In this process, poly(diallyldimethylammonium chloride) (PDDA) was introduced as an adhesive agent. The as-prepared graphene oxide-AgNPs composites (GO-AgNPs) have enhanced colloid stability and photo-stability than that of AgNPs. After conjugating to GO sheets, the antibacterial activities of AgNPs against Gram negative (G-) bacterial strain (Escherichia coli, E. coli) and Gram positive (G+) bacterial strain (Bacillus subtilis, B. subtilis) have been improved significantly. The antibacterial activity of GO-AgNPs is dependent on the size of AgNPs, i.e. the small AgNPs modified GO sheets show more effective antibacterial capability than that of large AgNPs modified GO sheets. Compared with AgNPs, the enhanced antibacterial activity of GO-AgNPs might not only be due to high stability of AgNPs anchored on GO sheets, but also the positive charged surface of hybrids which increases the electrostatic interaction of bacterial cell membrane with nanohybrids.
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Affiliation(s)
- Zhijun Zhu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
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42
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Hu C, Liu Y, Qin J, Nie G, Lei B, Xiao Y, Zheng M, Rong J. Fabrication of reduced graphene oxide and sliver nanoparticle hybrids for Raman detection of absorbed folic acid: a potential cancer diagnostic probe. ACS APPLIED MATERIALS & INTERFACES 2013; 5:4760-4768. [PMID: 23629451 DOI: 10.1021/am4000485] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Reduced graphene oxide (RGO) and silver nanoparticle (AgNP) hybrids (RGO-AgNP) were prepared by a facile one-pot method using Poly (N-vinyl-2-pyrrolidone) as reductant and stabilizer. Folic acid (FA) molecules were attached to the RGO-AgNP by physisorption for targeting specific cancer cells with folate receptors (FRs) and using as Raman reporter molecules. The internalization of the FA loaded RGO-AgNP (RGO-AgNP-FA) inside the FRs-positive cancer cell was confirmed by confocal laser scanning and transmission electron microscopy. The Raman signals of the FA in live cancer cells were detected by confocal Raman spectroscope at 514 nm excitation, indicating that the RGO-AgNP-FA material has great potential as a Raman probe for cancer diagnosis in vitro.
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Affiliation(s)
- Chaofan Hu
- Department of Chemistry, Jinan University, Guangzhou 510632, P R China
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43
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Zhang Z, Zhang J, Zhang B, Tang J. Mussel-inspired functionalization of graphene for synthesizing Ag-polydopamine-graphene nanosheets as antibacterial materials. NANOSCALE 2013; 5:118-123. [PMID: 23138501 DOI: 10.1039/c2nr32092d] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Mussels have been shown to attach to virtually all types of inorganic and organic surfaces via their adhesive proteins. The adhesive proteins secreted by mussels contain high concentrations of catechol and amine functional groups, which have similar functional groups with polydopamine (PDA). Inspired by mussels, a mild and environmentally friendly method was used to synthesize Ag nanoparticles (Ag NPs) on functionalized PDA-graphene nanosheets (PDA-GNS) with uniform and high dispersion. First, a uniform layer of PDA was coated on graphene oxide (GO) by polymerizing dopamine (DA) at room temperature. During the process GO was reduced by the DA. The PDA layer on the surface of GNS can be used as a nanoscale guide to form uniform Ag NPs on the surface of PDA-GNS. The obtained Ag-PDA-GNS hybrid materials are characterized by atomic force microscopy, transmission electron microscopy, UV-vis spectroscopy, Raman spectroscopy, X-ray photo-electron spectroscopy, X-ray diffraction, and thermal gravimetric analysis. The resultant Ag-PDA-GNS hybrid materials exhibited strong antibacterial properties to both Gram-negative and Gram-positive bacteria due to the synergistic effect of GNS and Ag NPs.
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Affiliation(s)
- Zhe Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
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