1
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Highly performant nanocomposite cryogels for multicomponent oily wastewater filtration. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2
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Chen W, Wang T, Dou Z, Xie X. Microalgae Harvesting by Self-Driven 3D Microfiltration with Rationally Designed Porous Superabsorbent Polymer (PSAP) Beads. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:15446-15455. [PMID: 34739206 DOI: 10.1021/acs.est.1c04907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Microalgae are emerging as next-generation renewable resources for production of sustainable biofuels and high-value bioproducts. Conventional microalgae harvesting methods including centrifugation, filtration, flocculation, and flotation are limited by intensive energy consumption, high capital cost, long treatment time, or the requirement of chemical addition. In this study, we design and fabricate porous superabsorbent polymer (PSAP) beads for self-driven 3D microfiltration of microalgal cultures. The PSAP beads can swell fast in a microalgal suspension with high water absorption capacity. During this process, microalgal cells are excluded outside the beads and successfully concentrated in the residual medium. After treatment, the beads can be easily separated from the microalgal concentrate and reused after dewatering. In one PSAP treatment, a high concentration factor for microalgal cultures up to 13 times can be achieved in 30 min with a harvesting efficiency higher than 90%. Furthermore, microalgal cultures could be concentrated from 0.2 g L-1 to higher than 120 g L-1 with minimal biomass loss through multistage PSAP treatments. Therefore, the use of PSAP beads for microalgae harvesting is fast, effective, and scalable. It does not require any complex instrument or chemical addition. This technique potentially provides an efficient and feasible alternative to obtain high concentrations of functional biomass at a very low cost.
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Affiliation(s)
- Wensi Chen
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Ting Wang
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Zeou Dou
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Xing Xie
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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3
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Backx BP, Dos Santos MS, Dos Santos OAL, Filho SA. The Role of Biosynthesized Silver Nanoparticles in Antimicrobial Mechanisms. Curr Pharm Biotechnol 2021; 22:762-772. [PMID: 33530905 DOI: 10.2174/1389201022666210202143755] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 10/29/2020] [Accepted: 11/12/2020] [Indexed: 11/22/2022]
Abstract
Nanotechnology is an area of science in which new materials are developed. The correlation between nanotechnology and microbiology is essential for the development of new drugs and vaccines. The main advantage of combining these areas is to associate the latest technology in order to obtain new ways for solving problems related to microorganisms. This review seeks to investigate nanoparticle formation's antimicrobial properties, primarily when connected to the green synthesis of silver nanoparticles. The development of new sustainable methods for nanoparticle production has been instrumental in designing alternative, non-toxic, energy-friendly, and environmentally friendly routes. In this sense, it is necessary to study silver nanoparticles' green synthesis concerning their antimicrobial properties. Antimicrobial silver nanoparticles' mechanisms demonstrate efficiency to gram-positive bacteria, gram-negative bacteria, fungi, viruses, and parasites. However, attention is needed with the emergence of resistance to these antimicrobials. This article seeks to relate the parameters of green silver- based nanosystems with the efficiency of antimicrobial activity.
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Affiliation(s)
- Bianca P Backx
- Numpex-Bio, Universidade Federal do Rio de Janeiro (UFRJ), Campus Duque de Caxias, Duque de Caxias, Brazil
| | - Mayara S Dos Santos
- Numpex-Bio, Universidade Federal do Rio de Janeiro (UFRJ), Campus Duque de Caxias, Duque de Caxias, Brazil
| | - Otávio A L Dos Santos
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), Santo Andre, Brazil
| | - Sérgio A Filho
- Numpex-Bio, Universidade Federal do Rio de Janeiro (UFRJ), Campus Duque de Caxias, Duque de Caxias, Brazil
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4
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Silver Nanoparticles (AgNPs) Biosynthesized by Aspergillus flavus KF946095; their Characterization and Antibacterial Activity. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2021. [DOI: 10.22207/jpam.15.1.05] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The antimicrobial agents of silver nanoparticles (AgNPs) have been applied a little while back in diverse therapeutic studies. In this analysis, AgNPs were biosynthesized using an ecologically welcomed and cost-effective simple of bio-reduction. An isolate of Aspergillus flavus KF946095 (A. flavus) was found to biosynthesize AgNPs; the size of AgNPs was (56nm) and detected by UV-Vis analysis at (400 nm). The reducing properties for biosynthesis of AgNPs are mainly due to the protein functional surface reactive groups detected by Fourier Transform Infrared spectroscopy (FTIR).Whereas, FTIR for AgNPs showed different peaks at 3994.5, 3201.6, 1801.4, 1643.2 and 1604.7 cm-1 that shared with the biosynthesize and stability of AgNPs as protein capping agents. Transmission Electron Microscope (TEM) confirmed the scattering of biosynthesized AgNPs within a sol with oval and round shapes. The antibiotic susceptibility test was studied for some pathogenic bacteria. Staphylococcus aureus DSM 1104 (S. aureus) appeared to be the more resistant strain; it resisted the action of 6 antibiotics out of 8 ones tested. MIC value of AgNPs was 20µg/mL and antibiotic ciprofloxacin was 30µg/mL. Mixture of MIC values or double MIC values distinctively inhibited the multidrug resistant (MDR) S.aureus.
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5
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Erol K, Bolat M, Tatar D, Nigiz C, Köse DA. Synthesis, characterization and antibacterial application of silver nanoparticle embedded composite cryogels. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127060] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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6
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Joshi N, Pathak A, Anupam R, Jain N, Singh J, Upadhyaya CP. A Rapid and Efficient Biosynthesis of Metallic Nanoparticles Using Aqueous Extract of Chia (Salvia hispanica L.) Seeds. BIONANOSCIENCE 2019. [DOI: 10.1007/s12668-019-00672-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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7
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Chen W, Jiang J, Zhang W, Wang T, Zhou J, Huang CH, Xie X. Silver Nanowire-Modified Filter with Controllable Silver Ion Release for Point-of-Use Disinfection. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:7504-7512. [PMID: 31184870 DOI: 10.1021/acs.est.9b01678] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Waterborne diseases related to unsafe water are still major threats to public health in some developing countries and rural areas. Providing affordable and safe drinking water globally remains a great challenge in the coming decades. In this study, we develop a high-throughput and conductive silver nanowire (AgNW)-modified composite filter via depositing thin and ultralong AgNWs on a macroporous substrate. An electrochemical filtration cell (EFC) equipped with the composite filter achieves controllable Ag+ release at a μg L-1 level and superior bacterial inactivation performance (>6-log inactivation efficiency) with an operation voltage of only 1 V at a high flux of 100 m3 h-1 m-2. Under such operation conditions, each composite filter (effective area: 0.79 cm2) can treat at least 750 mL of the bacterial suspension (∼107 CFU mL-1 of Escherichia coli) with a low effluent Ag+ concentration below 50 μg L-1 and almost negligible energy consumption of only ∼70 J m-3.
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Affiliation(s)
- Wensi Chen
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Jinyue Jiang
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
- School of Environment , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Wenlong Zhang
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Ting Wang
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Jianfeng Zhou
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Ching-Hua Huang
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Xing Xie
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
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8
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Ussia M, Di Mauro A, Mecca T, Cunsolo F, Nicotra G, Spinella C, Cerruti P, Impellizzeri G, Privitera V, Carroccio SC. ZnO-pHEMA Nanocomposites: An Ecofriendly and Reusable Material for Water Remediation. ACS APPLIED MATERIALS & INTERFACES 2018; 10:40100-40110. [PMID: 30358979 DOI: 10.1021/acsami.8b13029] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The design of new hybrid nanocomposites based on poly(2-hydroxyethylmethacrylate) (pHEMA) graphene oxide (GO) cryosponges, wherein ZnO nanolayers have been deposited to induce photocatalytic properties, is reported here. Atomic layer deposition at low temperature is specifically selected as the deposition technique to stably anchor ZnO molecules to the pendant polymer OH groups. Furthermore, to boost the pHEMA cryogel adsorption capability versus organic dyes, GO is added during the synthetic procedure. The morphology, the crystallinity, and the chemical composition of the samples are deeply investigated by scanning electron microscopy, transmission electron microscopy, X-ray diffraction analyses, Fourier transform infrared spectroscopy, and thermogravimetric analysis. Swelling properties, mechanical performance, and adsorption kinetics models of the hybrid materials are also evaluated. Finally, the adsorption and photocatalytic performance are tested and compared for all of the samples using methylene blue as a dye. Particularly, the adsorption efficiency of ZnO/pHEMA and ZnO/pHEMA-GO nanocomposites, as well as their in situ regeneration via photocatalysis, renders such devices very appealing for advanced wastewater treatment technology.
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Affiliation(s)
- Martina Ussia
- CNR-IMM , Via Santa Sofia 64 , 95123 Catania , Italy
- Department of Physics and Astronomy , University of Catania , via Santa Sofia 64 , 95123 Catania , Italy
| | | | - Tommaso Mecca
- CNR-ICB , Via Paolo Gaifami 18 , 95126 Catania , Italy
| | | | | | | | | | | | | | - Sabrina C Carroccio
- CNR-IMM , Via Santa Sofia 64 , 95123 Catania , Italy
- CNR-IPCB , Via Paolo Gaifami 18 , 95126 Catania , Italy
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9
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Atta AM, Al-Lohedan HA, Tawfeek AM, Ahmed MA. In situ
preparation of magnetic Fe3
O4
.Cu2
O.Fe3
O4
/cryogel nanocomposite powder via a reduction-coprecipitation method as adsorbent for methylene blue water pollutant. POLYM INT 2018. [DOI: 10.1002/pi.5582] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ayman M Atta
- Surfactants research chair, Chemistry Department; College of Science, King Saud University; Riyadh Saudi Arabia
| | - Hamad A Al-Lohedan
- Surfactants research chair, Chemistry Department; College of Science, King Saud University; Riyadh Saudi Arabia
| | - Ahmed M Tawfeek
- College of science; King Saud University; Riyadh Saudi Arabia
| | - Mona A Ahmed
- Petroleum Application Department; Egyptian Petroleum Research Institute; Cairo Egypt
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10
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Lv Q, Zhang B, Xing X, Zhao Y, Cai R, Wang W, Gu Q. Biosynthesis of copper nanoparticles using Shewanella loihica PV-4 with antibacterial activity: Novel approach and mechanisms investigation. JOURNAL OF HAZARDOUS MATERIALS 2018; 347:141-149. [PMID: 29304452 DOI: 10.1016/j.jhazmat.2017.12.070] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 12/11/2017] [Accepted: 12/28/2017] [Indexed: 05/02/2023]
Abstract
Metallic nanoparticle based disinfection represents a promising approach for microbial pollution control in drinking water and thus, biosynthesis of non precious metal nanoparticles is of considerable interest. Herein, an original and efficient route for directly microbial synthesis of copper nanoparticles (Cu-NPs) by Shewanella loihica PV-4 is described and their satisfactorily antimicrobial activities are established. Cu-NPs were successfully synthesized and most of them attaching on the bacterial cell surfaces suggested extracellular Cu(II) bioreduction mainly contributed to this biosynthesis. Using a suite of characterization methods, polycrystalline nature and face centered cubic lattice of Cu-NPs were revealed, with size in the range of 10-16 nm. With Cu-NPs dosage of 100 μg/mL and 105 CFU/mL fresh Escherichia coli suspension, the obtained antibacterial efficiency reached as high as 86.3 ± 0.2% within 12 h. Cell damages were primarily caused by the generated reactive oxygen species with H2O2 playing significant roles. Both cell membrane and cytoplasm components were destroyed, while the key inactivation mechanisms were lipid peroxidation and DNA damage as concluded through correlation analysis. The cost-effective and eco-friendly biosynthesis of Cu-NPs with high antibacterial activities make them particularly attractive for drinking water disinfection.
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Affiliation(s)
- Qing Lv
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Baogang Zhang
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, PR China.
| | - Xuan Xing
- College of Life and Environmental Science, Minzu University of China, Beijing 100081, PR China
| | - Yingxin Zhao
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, PR China
| | - Ruquan Cai
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Wei Wang
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Qian Gu
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, PR China
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11
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Berillo D, Cundy A. 3D-macroporous chitosan-based scaffolds with in situ formed Pd and Pt nanoparticles for nitrophenol reduction. Carbohydr Polym 2018; 192:166-175. [PMID: 29691009 DOI: 10.1016/j.carbpol.2018.03.038] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 02/12/2018] [Accepted: 03/14/2018] [Indexed: 10/17/2022]
Abstract
3D-macroporous chitosan-based scaffolds (cryogels) were produced via growth of metal-polymer coordinated complexes and electrostatic interactions between oppositely charged groups of chitosan and metal ions under subzero temperatures. A mechanism of reduction of noble metal complexes inside the cryogel walls by glutaraldehyde is proposed, which produces discrete and dispersed noble metal nanoparticles. 3D-macroporous scaffolds prepared under different conditions were characterised using TGA, FTIR, nitrogen adsorption, SEM, EDX and TEM, and the distribution of platinum nanoparticles (PtNPs) and palladium nanoparticles (PdNPs) in the material assessed. The catalytic activity of the in situ synthesised PdNPs, at 2.6, 12.5 and 21.0 μg total mass, respectively, was studied utilising a model system of 4-nitrophenol reduction. The kinetics of the reaction under different conditions (temperature, concentration of catalyst) were examined, and a decrease of catalytic activity was not observed over 17 treatment cycles. Increasing the temperature of the catalytic reaction from 10 to 22 and 35 °C by PdNPs supported within the cryogel increased the kinetic rate by 44 and 126%, respectively. Turnover number and turnover frequency of the PdNPs catalysts at room temperature were in the range 0.20-0.53 h-1. The conversion degree of 4-nitrophenol at room temperature reached 98.9% (21.0 μg PdNPs). Significantly less mass of palladium nanoparticles (by 30-40 times) was needed compared to published data to obtain comparable rates of reduction of 4-nitrophenol.
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Affiliation(s)
- Dmitriy Berillo
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, UK; Department of Biotechnology, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, 22 100, Lund, Sweden.
| | - Andrew Cundy
- School of Ocean and Earth Science, University of Southampton, National Oceanography Centre (Southampton), UK
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12
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Fan M, Gong L, Huang Y, Wang D, Gong Z. Facile preparation of silver nanoparticle decorated chitosan cryogels for point-of-use water disinfection. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 613-614:1317-1323. [PMID: 28968934 DOI: 10.1016/j.scitotenv.2017.09.256] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 09/23/2017] [Accepted: 09/24/2017] [Indexed: 05/10/2023]
Abstract
In this study, silver nanoparticle decorated chitosan (CS/Ag NP) cryogels were fabricated through a simple freeze-drying process for point-of-use (POU) water disinfection. The CS/Ag NP cryogels showed high porosity, good mechanical properties, an excellent water absorption capability, and most importantly, an efficient bactericidal feature. The absorption capacity for water was found to be 47g/g, approximately 90% of which was recovered by simple squeezing. Three different sizes of Ag NPs were compared regarding their bactericidal capability against both Escherichia coli (E. coli) and Bacillus subtilis (B. subtilis). Under optimum conditions, a 3 log reduction of bacteria was observed by holding the bacteria suspension (108 colony forming units (cfu)/mL) in the cryogels for 5min. Reduction was further increased to a 4 log when the contact time was doubled. The silver content in the cryogels was found to only be 7.5mg/g. Furthermore, the total Ag in processed water was found to only be 22μg/L, half of the safety limit set by China (<50μg/L). The bactericidal effectiveness of the material for real surface water samples was also demonstrated by treating water samples with different water quality matrices, including lake water and sewage water samples. In all three treated lake water samples, both the total bacteria and E. coli met the regulations for drinking water in China (<100cfu/mL for total bacteria and negative for E. coli). CS/Ag NP cryogels can be used for drinking water disinfection during disaster relief and in contingency water supply applications.
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Affiliation(s)
- Meikun Fan
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China; State-province Joint Engineering Laboratory of Spatial Information Technology of High-Speed Rail Safety, Chengdu 610031, China.
| | - Lin Gong
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Yuting Huang
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Dongmei Wang
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Zhengjun Gong
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China.
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13
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Al-Hussain SA, Ezzat AO, Gaffer AK, Atta AM. Removal of organic water pollutant using magnetite nanomaterials embedded with ionic copolymers of 2-acrylamido-2-methylpropane sodium sulfonate cryogels. POLYM INT 2017. [DOI: 10.1002/pi.5492] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sami A Al-Hussain
- Department of Chemistry, Faculty of Science; Al Imam Mohammad Ibn Saud Islamic University; Riyadh Saudi Arabia
| | - Abdelrhman O Ezzat
- Department of Chemistry, Faculty of Science; Al Imam Mohammad Ibn Saud Islamic University; Riyadh Saudi Arabia
| | - Amany K Gaffer
- Petroleum Application Department; Egyptian Petroleum Research Institute; Nasr City, Cairo Egypt
| | - Ayman M Atta
- Petroleum Application Department; Egyptian Petroleum Research Institute; Nasr City, Cairo Egypt
- Chemistry Department, College of Science; King Saud University; Riyadh Saudi Arabia
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14
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Orakdogen N, Sanay B. Tailoring the physico-chemical properties and elasticity of poly(hydroxy-functional methacrylate)-based cationically charged gel beads: Combined hydrophobicity and mechanical durability through frozen droplets. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.09.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Syafiuddin A, Salmiati, Salim MR, Beng Hong Kueh A, Hadibarata T, Nur H. A Review of Silver Nanoparticles: Research Trends, Global Consumption, Synthesis, Properties, and Future Challenges. J CHIN CHEM SOC-TAIP 2017. [DOI: 10.1002/jccs.201700067] [Citation(s) in RCA: 194] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Achmad Syafiuddin
- Department of Environmental Engineering, Faculty of Civil Engineering; Universiti Teknologi Malaysia; Johor Malaysia
| | - Salmiati
- Department of Environmental Engineering, Faculty of Civil Engineering; Universiti Teknologi Malaysia; Johor Malaysia
- Centre for Environmental Sustainability and Water Security (IPASA), Research Institute for Sustainable Environment (RISE); Universiti Teknologi Malaysia; Johor Malaysia
| | - Mohd Razman Salim
- Department of Environmental Engineering, Faculty of Civil Engineering; Universiti Teknologi Malaysia; Johor Malaysia
- Centre for Environmental Sustainability and Water Security (IPASA), Research Institute for Sustainable Environment (RISE); Universiti Teknologi Malaysia; Johor Malaysia
| | - Ahmad Beng Hong Kueh
- Construction Research Centre (CRC), Institute for Smart Infrastructure and Innovative Construction (ISIIC), Faculty of Civil Engineering; Universiti Teknologi Malaysia; Johor Malaysia
| | - Tony Hadibarata
- Department of Environmental Engineering, Faculty of Engineering and Science; Curtin University; Sarawak Malaysia
| | - Hadi Nur
- Center for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research; Universiti Teknologi Malaysia; Johor Malaysia
- Central Laboratory of Minerals and Advanced Materials, Faculty of Mathematics and Natural Science; State University of Malang; East Java Indonesia
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16
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Du J, Singh H, Yi TH. Biosynthesis of silver nanoparticles by Novosphingobium sp. THG-C3 and their antimicrobial potential. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:211-217. [PMID: 27145847 DOI: 10.1080/21691401.2016.1178135] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The present study described biosynthesis of silver nanoparticles (AgNPs) using a bacterial strain Novosphingobium sp. THG-C3, isolated from soil, and their application in antibacterial activity. The maximum absorbance values of the synthesized AgNPs was measured at 406 nm in ultraviolet-visible spectrophotometry and were mostly spherical in shape with particle size in range of 8-25 nm by field emission transmission electron microscopy analysis. X-ray diffraction pattern corresponding to planes (111), (200), (220), and (311) demonstrated the crystalline nature of the AgNPs. The synthesized AgNPs exhibited antimicrobial activity against various pathogens inculding Staphylococcus aureus, Candida tropicalis, Pseudomonas aeruginosa, Escherichia coli, Vibrio parahaemolyticus, Candida albicans, Salmonella enterica, Bacillus subtilis, and Bacillus cereus. In addition, the AgNPs in combination with commercial antibiotics enhanced antimicrobial activity against P. aeruginosa, S. enterica, E. coli, and V. parahaemolyticus. The AgNPs synthesized by strain Novosphingobium sp. THG-C3 are comparatively simple, green, cost-effective, and may serve as a potential antimicrobial agent.
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Affiliation(s)
- Juan Du
- a Department of Oriental Medicinal Biotechnology, College of Life Science , Kyung Hee University - Global Campus , Yongin-Si , Republic of Korea
| | - Hina Singh
- a Department of Oriental Medicinal Biotechnology, College of Life Science , Kyung Hee University - Global Campus , Yongin-Si , Republic of Korea
| | - Tae-Hoo Yi
- a Department of Oriental Medicinal Biotechnology, College of Life Science , Kyung Hee University - Global Campus , Yongin-Si , Republic of Korea
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17
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Aziz N, Faraz M, Pandey R, Shakir M, Fatma T, Varma A, Barman I, Prasad R. Facile Algae-Derived Route to Biogenic Silver Nanoparticles: Synthesis, Antibacterial, and Photocatalytic Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:11605-12. [PMID: 26447769 DOI: 10.1021/acs.langmuir.5b03081] [Citation(s) in RCA: 159] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Biogenic synthesis of metal nanoparticles is of considerable interest, as it affords clean, biocompatible, nontoxic, and cost-effective fabrication. Driven by their ability to withstand variable extremes of environmental conditions, several microorganisms, notably bacteria and fungi, have been investigated in the never-ending search for optimal nanomaterial production platforms. Here, we present a hitherto unexplored algal platform featuring Chlorella pyrenoidosa, which offers a high degree of consistency in morphology of synthesized silver nanoparticles. Using a suite of characterization methods, we reveal the intrinsic crystallinity of the algae-derived nanoparticles and the functional moieties associated with its surface stabilization. Significantly, we demonstrate the antibacterial and photocatalytic properties of these silver nanoparticles and discuss the potential mechanisms that drive these critical processes. The blend of photocatalytic and antibacterial properties coupled with their intrinsic biocompatibility and eco-friendliness make these nanoparticles particularly attractive for wastewater treatment.
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Affiliation(s)
- Nafe Aziz
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh , Noida, 201313, India
| | - Mohd Faraz
- Department of Chemistry, Aligarh Muslim University , Aligarh, 202002, India
| | - Rishikesh Pandey
- G R Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
| | - Mohd Shakir
- Department of Chemistry, Aligarh Muslim University , Aligarh, 202002, India
| | - Tasneem Fatma
- Department of Biosciences, Jamia Millia Islamia , New Delhi, 110025, India
| | - Ajit Varma
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh , Noida, 201313, India
| | - Ishan Barman
- Department of Mechanical Engineering, Johns Hopkins University , Baltimore, Maryland 21218, United States
- Department of Oncology, Johns Hopkins University , Baltimore, Maryland 21287, United States
| | - Ram Prasad
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh , Noida, 201313, India
- Department of Mechanical Engineering, Johns Hopkins University , Baltimore, Maryland 21218, United States
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