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Raja T, Mohanavel V, Kannan S, Parikh S, Paul D, Velmurugan P, Chinnathambi A, Alharbi SA, Sivakumar S. The effect of porcelain filler particulates madar fiber reinforced epoxy composite - A comprehensive study for biomedical applications. Heliyon 2024; 10:e29818. [PMID: 38681603 PMCID: PMC11046237 DOI: 10.1016/j.heliyon.2024.e29818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 04/16/2024] [Accepted: 04/16/2024] [Indexed: 05/01/2024] Open
Abstract
Environmental consciousness motivates scientists to devise an alternative method for producing natural fiber composite materials in order to decrease the demand for synthetic fibers. This study explores the potential of a novel composite material derived from madar fiber-reinforced epoxy with porcelain filler particulates, designed specifically for biomedical instrumentation applications. The primary focus is to assess the material's structural, mechanical, and antibacterial properties. X-ray Diffraction analysis was employed to discern the crystalline nature of the composite, revealing enhanced crystallinity due to the inclusion of porcelain particulates. Fourier-Transform Infrared Spectroscopy confirmed the chemical interactions and bonding mechanisms between madar fiber, epoxy matrix, and porcelain filler. Mechanically, the composite exhibited superior properties when addition of porcelain fillers, maximum results obtain in tensile strength of 51.28 MPa, flexural strength of 54.21 MPa, and impact strength of 0.0155 kJ/m2, making it ideal for robust biomedical applications. Scanning Electron Microscopy provided detailed insights into the morphology and distribution of the reinforcing agents within the epoxy matrix, emphasizing the fibrillated structure of madar fiber and the uniform dispersion of porcelain particulates. Importantly, antibacterial assays demonstrated the composite's potential resistance against common pathogenic bacteria, which is crucial for biomedical instrumentation. Collectively, this research underscores the promising attributes of the madar fiber reinforced epoxy composite with porcelain particulates, suggesting its suitability for advanced biomedical applications.
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Affiliation(s)
- Thandavamoorthy Raja
- Material Science Lab, Department of Prosthodontics, Saveetha Dental College and Hospitals, SIMATS, Saveetha University, Chennai, India
| | - Vinayagam Mohanavel
- Centre for Materials Engineering and Regenerative Medicine, Bharath Institute of Higher Education and Research, Chennai, 600073, Tamil Nadu, India
- Department of Mechanical Engineering, Chandigarh University, Mohali, 140413, Punjab, India
- Department of Mechanical Engineering, Amity University, Dubai, 345019, United Arab Emirates
| | - Sathish Kannan
- Department of Mechanical Engineering, Amity University, Dubai, 345019, United Arab Emirates
| | - Swapnil Parikh
- Department of Computer Science and Engineering, Parul Institute of Engineering and Technology, Parul University, Post Limda, 391760, Waghodia, Gujarat, India
| | - Dipen Paul
- Department of Energy and Environment, Faculty of Management, Symbiosis Institute of International Business, Symbiosis International (Deemed University), Hinjawadi Phase 1, Pincode, 411057, Pune, Maharashtra, India
| | - Palanivel Velmurugan
- Centre for Materials Engineering and Regenerative Medicine, Bharath Institute of Higher Education and Research, Chennai, 600073, Tamil Nadu, India
| | - Arunachalam Chinnathambi
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box -2455, Riyadh, 11451, Saudi Arabia
| | - Sulaiman Ali Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box -2455, Riyadh, 11451, Saudi Arabia
| | - Subpiramaniyam Sivakumar
- Department of Bioenvironmental Energy, College of Natural Resources and Life Science, Pusan National University, Miryang-si, Gyeongsangnam-do, 50463, Republic of Korea
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Wang T, Liu Y, Dong J, Wang Y, Li D, Long X, Wang B, Xia Y. Preparation of high-strength photochromic alginate fibers based on the study of flame-retardant properties. Int J Biol Macromol 2024; 258:128889. [PMID: 38123039 DOI: 10.1016/j.ijbiomac.2023.128889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/08/2023] [Accepted: 12/17/2023] [Indexed: 12/23/2023]
Abstract
Color-changing fibers have attracted much attention for their wide applications in camouflage, security warnings, and anti-counterfeiting. The inorganic color-changing material tungsten trioxide (WO3) has been widely investigated for its good stability, controllability, and ease of synthesis. In this study, photochromic alginate fibers (WO3@Ca-Alg) were prepared by incorporating UV-responsive hybrid tungsten trioxide nanoparticles in the fiber production process. The prepared photochromic alginate fibers changed from white to dark blue after 30 min of UV irradiation and returned to their original color after 64 h. It can be seen that WO3@Ca-Alg has the advantage of long color duration. The strength of this fiber reached 2.61 cN/dtex and the limiting oxygen index (LOI) was 40.9 %, which indicates that the fiber exhibited mechanical resistance and flame-retardant properties. After the cross-linking of WO3@Ca-Alg by sodium tetraborate, a new core-shell structure was generated, which was able to encapsulate tungsten trioxide in it, thus reducing the amount of tungsten trioxide loss, and its salt and washing resistance was greatly improved. This photochromic alginate fiber can be mass produced and spun into yarn.
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Affiliation(s)
- Tian Wang
- State Key Laboratory of Bio-fibers and Eco-textiles, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, PR China
| | - Yongjiao Liu
- State Key Laboratory of Bio-fibers and Eco-textiles, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, PR China
| | - Jinfeng Dong
- State Key Laboratory of Bio-fibers and Eco-textiles, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, PR China
| | - Yan Wang
- State Key Laboratory of Bio-fibers and Eco-textiles, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, PR China
| | - Daohao Li
- State Key Laboratory of Bio-fibers and Eco-textiles, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, PR China
| | - Xiaojing Long
- State Key Laboratory of Bio-fibers and Eco-textiles, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, PR China.
| | - Bingbing Wang
- State Key Laboratory of Bio-fibers and Eco-textiles, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, PR China.
| | - Yanzhi Xia
- State Key Laboratory of Bio-fibers and Eco-textiles, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, PR China
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Al-Momani H, Almasri M, Al Balawi D, Hamed S, Albiss BA, Aldabaibeh N, Ibrahim L, Albalawi H, Al Haj Mahmoud S, Khasawneh AI, Kilani M, Aldhafeeri M, Bani-Hani M, Wilcox M, Pearson J, Ward C. The efficacy of biosynthesized silver nanoparticles against Pseudomonas aeruginosa isolates from cystic fibrosis patients. Sci Rep 2023; 13:8876. [PMID: 37264060 DOI: 10.1038/s41598-023-35919-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 05/25/2023] [Indexed: 06/03/2023] Open
Abstract
The high antibiotic resistance of Pseudomonas aeruginosa (PA) makes it critical to develop alternative antimicrobial agents that are effective and affordable. One of the many applications of silver nanoparticles (Ag NPs) is their use as an antimicrobial agent against bacteria resistant to common antibiotics. The key purpose of this research was to assess the antibacterial and antibiofilm effectiveness of biosynthesized Ag NPs against six biofilm-forming clinically isolated strains of PA and one reference strain (ATCC 27853). Ag NPs were biosynthesized using a seed extract of Peganum harmala as a reducing agent. Ag NPs were characterized by Ultraviolet-visible (UV-Vis) spectroscopy and scanning transmission electron microscopy (STEM). The effect of Ag NPs on biofilm formation and eradication was examined through micro-titer plate assays, and the minimal inhibitory (MIC) and minimum bactericidal (MBC) concentrations determined. In addition, real-time polymerase chain reactions (RT-PCR) were performed to examine the effects of Ag NPs on the expression of seven PA biofilm-encoding genes (LasR, LasI, LssB, rhIR, rhII, pqsA and pqsR). The biosynthesized Ag NPs were spherically-shaped with a mean diameter of 11 nm. The MIC for each PA strain was 15.6 µg/ml, while the MBC was 31.25 µg/ml. All PA strains exposed to Ag NPs at sub-inhibitory concentrations (0.22-7.5 µg/ml) showed significant inhibitory effects on growth and biofilm formation. Biomass and biofilm metabolism were reduced dependent on Ag NP concentration. The expression of the quorum-sensing genes of all strains were significantly reduced at an Ag NP concentration of 7.5 µg/ml. The results demonstrate the extensive in-vitro antibacterial and antibiofilm performance of Ag NPs and their potential in the treatment of PA infection. It is recommended that future studies examine the possible synergy between Ag NPs and antibiotics.
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Affiliation(s)
- Hafez Al-Momani
- Department of Microbiology, Pathology and Forensic Medicine, Faculty of Medicine, Hashemite University Medical School, The Hashemite University, Zarqa, 13133, Jordan.
| | - Muna Almasri
- Faculty of Applied Medical Sciences, The Hashemite University, Zarqa, 13133, Jordan
| | - Dua'A Al Balawi
- Faculty of Applied Medical Sciences, The Hashemite University, Zarqa, 13133, Jordan
| | - Saja Hamed
- Department of Pharmaceutical and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, The Hashemite University, Zarqa, Jordan
| | - Borhan Aldeen Albiss
- Nanotechnology Institute, Jordan University of Science & Technology, P.O. Box 3030, Irbid, 22110, Jordan
| | - Nour Aldabaibeh
- Supervisor of Microbiology Laboratory, Laboratory Medicine Department, Jordan University Hospital, Amman, Jordan
| | - Lugain Ibrahim
- Faculty of Applied Medical Sciences, The Hashemite University, Zarqa, 13133, Jordan
| | - Hadeel Albalawi
- Faculty of Applied Medical Sciences, The Hashemite University, Zarqa, 13133, Jordan
| | - Sameer Al Haj Mahmoud
- Department of Basic Medical Science, Faculty of Medicine, Al-Balqa' Applied University, AL-Salt, Jordan
| | - Ashraf I Khasawneh
- Department of Microbiology, Pathology and Forensic Medicine, Faculty of Medicine, Hashemite University Medical School, The Hashemite University, Zarqa, 13133, Jordan
| | - Muna Kilani
- Department of Pediatrics, Faculty of Medicine, The Hashemite University, Zarqa, Jordan
| | - Muneef Aldhafeeri
- Biosciences Institute, Medical School, Newcastle University, Newcastle Upon Tyne, NE2 4HH, UK
| | - Muayyad Bani-Hani
- Department of Plant Production and Protection, Faculty of Agriculture, Jerash University, Jerash, Jordan
| | - Matthew Wilcox
- Institutes of Cellular Medicine and Cell & Molecular Biosciences, Newcastle University Medical School, Newcastle University, Newcastle Upon Tyne, NE2 4HH, UK
- Biosciences Institute, Medical School, Newcastle University, Newcastle Upon Tyne, NE2 4HH, UK
| | - Jeffrey Pearson
- Biosciences Institute, Medical School, Newcastle University, Newcastle Upon Tyne, NE2 4HH, UK
| | - Christopher Ward
- Institutes of Cellular Medicine and Cell & Molecular Biosciences, Newcastle University Medical School, Newcastle University, Newcastle Upon Tyne, NE2 4HH, UK
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Wang L, Li D, Xue Y, Li S, Yang X, Li L, Li T, Luo Z. Fabrication and characterization of novel porous hydrogels for fragile fruits: A case study. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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5
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More PR, Pandit S, Filippis AD, Franci G, Mijakovic I, Galdiero M. Silver Nanoparticles: Bactericidal and Mechanistic Approach against Drug Resistant Pathogens. Microorganisms 2023; 11:369. [PMID: 36838334 PMCID: PMC9961011 DOI: 10.3390/microorganisms11020369] [Citation(s) in RCA: 57] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/11/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
This review highlights the different modes of synthesizing silver nanoparticles (AgNPs) from their elemental state to particle format and their mechanism of action against multidrug-resistant and biofilm-forming bacterial pathogens. Various studies have demonstrated that the AgNPs cause oxidative stress, protein dysfunction, membrane disruption, and DNA damage in bacteria, ultimately leading to bacterial death. AgNPs have also been found to alter the adhesion of bacterial cells to prevent biofilm formation. The benefits of using AgNPs in medicine are, to some extent, counter-weighted by their toxic effect on humans and the environment. In this review, we have compiled recent studies demonstrating the antibacterial activity of AgNPs, and we are discussing the known mechanisms of action of AgNPs against bacterial pathogens. Ongoing clinical trials involving AgNPs are briefly presented. A particular focus is placed on the mechanism of interaction of AgNPs with bacterial biofilms, which are a significant pathogenicity determinant. A brief overview of the use of AgNPs in other medical applications (e.g., diagnostics, promotion of wound healing) and the non-medical sectors is presented. Finally, current drawbacks and limitations of AgNPs use in medicine are discussed, and perspectives for the improved future use of functionalized AgNPs in medical applications are presented.
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Affiliation(s)
- Pragati Rajendra More
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, University of Campania “L. Vanvitelli”, Via De Crecchio, 7, 80138 Naples, Italy
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Santosh Pandit
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Anna De Filippis
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, University of Campania “L. Vanvitelli”, Via De Crecchio, 7, 80138 Naples, Italy
| | - Gianluigi Franci
- Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana, University of Salerno, 84081 Baronissi, Italy
| | - Ivan Mijakovic
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
- Novo Nordisk Foundation Center for Bio Sustainability, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Massimiliano Galdiero
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, University of Campania “L. Vanvitelli”, Via De Crecchio, 7, 80138 Naples, Italy
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Electrospun alginate mats embedding silver nanoparticles with bioactive properties. Int J Biol Macromol 2022; 213:427-434. [PMID: 35661668 DOI: 10.1016/j.ijbiomac.2022.05.183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/18/2022] [Accepted: 05/28/2022] [Indexed: 01/01/2023]
Abstract
Polysaccharide-based composites embedding silver nanoparticles (AgNPs) represent a promising alternative to common antimicrobial materials because of the effective, broad-spectrum biocidal properties of AgNPs combined with the biocompatibility and environmental safety of the naturally occurring polymeric component. In this work, AgNPs stabilized with alginate chains (Alg@AgNPs) were successfully synthesized in situ within the polysaccharide solution through a wet chemical approach carried out at different concentrations of the silver salt precursor. Once obtained, the aqueous suspensions were electrospun to prepare non-woven membranes, showing a homogeneous nanostructured texture (with fiber diameter between 100 and 150 nm), which was found to be influenced by the size (between 20 and 35 nm) of the embedded metal nanoparticles. The biocidal potential of the nanocomposite mats was preliminarily tested against Gram-negative E. coli. The results showed that the antimicrobial response of the investigated samples occurred within a day of incubation and can be observed for AgNPs content in the polysaccharide fibers far below the nanomolar regime.
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Altaf NUH, Naz MY, Shukrullah S, Ghamkhar M, Irfan M, Rahman S, Jakubowski T, Alqurashi EA, Glowacz A, Mahnashi MH. Non-Thermal Plasma Reduction of Ag + Ions into Silver Nanoparticles in Open Atmosphere under Statistically Optimized Conditions for Biological and Photocatalytic Applications. MATERIALS 2022; 15:ma15113826. [PMID: 35683124 PMCID: PMC9181389 DOI: 10.3390/ma15113826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 01/27/2023]
Abstract
An environmentally friendly non-thermal DC plasma reduction route was adopted to reduce Ag+ ions at the plasma−liquid interface into silver nanoparticles (AgNPs) under statistically optimized conditions for biological and photocatalytic applications. The efficiency and reactivity of AgNPs were improved by statistically optimizing the reaction parameters with a Box−Behnken Design (BBD). The size of the AgNPs was chosen as a statistical response parameter, while the concentration of the stabilizer, the concentration of the silver salt, and the plasma reaction time were chosen as independent factors. The optimized parameters for the plasma production of AgNPs were estimated using a response surface methodology and a significant model p < 0.05. The AgNPs, prepared under optimized conditions, were characterized and then tested for their antibacterial, antioxidant, and photocatalytic potentials. The optimal conditions for these three activities were 3 mM of stabilizing agent, 5 mM of AgNO3, and 30 min of reaction time. Having particles size of 19 to 37 nm under optimized conditions, the AgNPs revealed a 82.3% degradation of methyl orange dye under UV light irradiation. The antibacterial response of the optimized AgNPs against S. aureus and E. coli strains revealed inhabitation zones of 15 mm and 12 mm, respectively, which demonstrate an antioxidant activity of 81.2%.
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Affiliation(s)
- Noor Ul Huda Altaf
- Department of Physics, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan;
- Correspondence: (N.U.H.A.); (S.S.)
| | - Muhammad Yasin Naz
- Department of Physics, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan;
| | - Shazia Shukrullah
- Department of Physics, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan;
- Correspondence: (N.U.H.A.); (S.S.)
| | - Madiha Ghamkhar
- Department of Mathematics and Statistics, University of Agriculture Faisalabad, Faisalabad 38000, Pakistan;
| | - Muhammad Irfan
- Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 11001, Saudi Arabia; (M.I.); (S.R.)
| | - Saifur Rahman
- Electrical Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 11001, Saudi Arabia; (M.I.); (S.R.)
| | - Tomasz Jakubowski
- Faculty of Production and Power Engineering, University of Agriculture in Krakow, Balicka 116 B Str., 30-149 Krakow, Poland;
| | - Esam A. Alqurashi
- Department of Chemistry, Faculty of Science, University of Albaha, Albaha 1988, Saudi Arabia;
| | - Adam Glowacz
- Department of Electrical Engineering, Cracow University of Technology, Warszawska 24 Str., 31-155 Krakow, Poland;
| | - Mater H. Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran 61441, Saudi Arabia;
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Rouhi H, Golshan Ebrahimi N. Antibacterial and in vivo studies of poly(ɛ-caprolactone)-silver electrospun nanofibers: effect of preparation methods on the properties. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2021.2023528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Hadi Rouhi
- Polymer Engineering Department, Chemical Engineering Faculty, Tarbiat Modares University, Tehran, Iran
| | - Nadereh Golshan Ebrahimi
- Polymer Engineering Department, Chemical Engineering Faculty, Tarbiat Modares University, Tehran, Iran
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In-situ synthesis of polypyrrole/silver for fabricating alginate fabrics with high conductivity, UV resistance and hydrophobicity. Carbohydr Polym 2021; 270:118362. [PMID: 34364607 DOI: 10.1016/j.carbpol.2021.118362] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/22/2021] [Accepted: 06/16/2021] [Indexed: 12/28/2022]
Abstract
In this research, the polypyrrole/silver (PPy/Ag) composite was first in-situ prepared on alginate fabrics by chemical oxidative polymerization of pyrrole (Py) monomer using silver nitrate as oxidant and sodium dodecyl sulfate (SDS) as the dopant. The effects of mole ratio of Py to silver nitrate, reaction time and dopant concentration on the preparation of PPy/Ag composite were optimized. It was found the optimal molar ratio of Py to silver nitrate was 1:1.5 with 0.02 M SDS under the reaction time of 10 h. Then, the microstructure and properties of resultant PPy/Ag composite were analyzed by scanning electron microscope (SEM), Fourier infrared spectrometer (FT-IR), X-ray diffraction spectroscopy (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy and the thermogravimetry analysis (TGA), respectively. Finally, the influences of PPy/Ag coating on the performance of alginate fabrics including electrical conductivity, hydrophilicity, antistatic property and anti-ultraviolet capability were determined. It was found that the electrical conductivity of alginate fabric could be intensively increased after PPy/Ag coating. Meantime, the anti-ultraviolet capability and hydrophobicity could be largely improved by PPy/Ag coating especially under high Py dosage. This paper introduced a simple method for preparing PPy/Ag composite direct on alginate fabric to make it a good functional substrate which could be applied in many fields.
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Liu H, Talebian S, Vine KL, Li Z, Foroughi J. Implantable coaxial nanocomposite biofibers for local chemo‐photothermal combinational cancer therapy. NANO SELECT 2021. [DOI: 10.1002/nano.202100124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Hanghang Liu
- Center for Molecular Imaging and Nuclear Medicine State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences (RAD‐X) Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions Soochow University Suzhou P. R. China
| | - Sepehr Talebian
- Intelligent Polymer Research Institute University of Wollongong NSW Australia
- Illawarra Health and Medical Research Institute University of Wollongong Wollongong NSW Australia
| | - Kara L. Vine
- Illawarra Health and Medical Research Institute University of Wollongong Wollongong NSW Australia
- School of Chemistry and Molecular Bioscience Faculty of Science Medicine and Health University of Wollongong Wollongong NSW Australia
| | - Zhen Li
- Center for Molecular Imaging and Nuclear Medicine State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences (RAD‐X) Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions Soochow University Suzhou P. R. China
| | - Javad Foroughi
- Illawarra Health and Medical Research Institute University of Wollongong Wollongong NSW Australia
- School of Electrical, Computer and Telecommunications Engineering Faculty of Engineering and Information Sciences University of Wollongong NSW Australia
- University of Essen and the Westgerman Heart and Vascular Center in Germany, University of Duisburg‐Essen Essen Germany
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Preparation and Properties of Wet-Spun Microcomposite Filaments from Various CNFs and Alginate. Polymers (Basel) 2021; 13:polym13111709. [PMID: 34073715 PMCID: PMC8197178 DOI: 10.3390/polym13111709] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/17/2021] [Accepted: 05/20/2021] [Indexed: 01/28/2023] Open
Abstract
We aimed to improve the mechanical properties of alginate fibers by reinforcing with various cellulose nanofibrils (CNFs). Pure cellulose nanofibril (PCNF), lignocellulose nanofibril (LCNF) obtained via deep eutectic solvent (DES) pretreatment, and TEMPO-oxidized lignocellulose nanofibril (TOLCNF) were employed. Sodium alginate (AL) was mixed with PCNF, LCNF, and TOLCNF with a CNF content of 5–30%. To fabricate microcomposite filaments, the suspensions were wet-spun in calcium chloride (CaCl2) solution through a microfluidic channel. Average diameters of the microcomposite filaments were in the range of 40.2–73.7 μm, which increased with increasing CNF content and spinning rate. The tensile strength and elastic modulus improved as the CNF content increased to 10%, but the addition of 30% CNF deteriorated the tensile properties. The tensile strength and elastic modulus were in the order of LCNF/AL > PCNF/AL > TOLCNF/AL > AL. An increase in the spinning rate improved the tensile properties.
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Rehan M, El-Naggar ME, Al-Enizi AM, Alothman AA, Nafady A, Abdelhameed RM. Development of silk fibers decorated with the in situ synthesized silver and gold nanoparticles: antimicrobial activity and creatinine adsorption capacity. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.03.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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13
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Jayeoye TJ, Sirimahachai U, Rujiralai T. Sensitive colorimetric detection of ascorbic acid based on seed mediated growth of sodium alginate reduced/stabilized gold nanoparticles. Carbohydr Polym 2021; 255:117376. [PMID: 33436207 DOI: 10.1016/j.carbpol.2020.117376] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 10/28/2020] [Accepted: 11/02/2020] [Indexed: 12/19/2022]
Abstract
A sensitive detection strategy for ascorbic acid (AA), using sodium alginate reduced/stabilized gold nanoparticles (SA-AuNPs) as the optical probe, is reported. The SA-AuNPs were prepared by mixing gold salt and SA under stirring for 2 h at room temperature, without any further steps. The mixture was aged at 4 °C overnight, after which a faint-purple colloidal solution of SA-AuNPs was obtained. Characterization shows that the synthesis is incapable of reducing all Au3+ to Au°, but rather to mixture of Au°/Au+. The addition of AA to the SA-AuNPs probe reduced completely all Au+ to new AuNPs which were deposited on the pre-formed SA-AuNPs seed, leading to size increment and absorption spectra enhancement. The assay exhibited a good linearity between 12.5 and 150.0 μM AA and low limit of quantification of 11.2 μM. It was further used for AA quantitation in vitamin C injection and fruit juice with satisfactory accuracy and precision.
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Affiliation(s)
- Titilope John Jayeoye
- Center of Excellence for Innovation in Chemistry and Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand; Analytical Chemistry and Environment Research Unit, Faculty of Science and Technology, Prince of Songkla University, Pattani, 94000, Thailand; Department of Chemistry/Biochemistry/Molecular Biology, Alex-Ekwueme Federal University, Ndufu-Alike-Ikwo, Abakaliki, Ebonyi State, Nigeria
| | - Uraiwan Sirimahachai
- Center of Excellence for Innovation in Chemistry and Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Thitima Rujiralai
- Center of Excellence for Innovation in Chemistry and Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand; Analytical Chemistry and Environment Research Unit, Faculty of Science and Technology, Prince of Songkla University, Pattani, 94000, Thailand.
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Dodero A, Vicini S, Lova P, Alloisio M, Castellano M. Nanocomposite alginate-based electrospun membranes as novel adsorbent systems. Int J Biol Macromol 2020; 165:1939-1948. [DOI: 10.1016/j.ijbiomac.2020.10.116] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/17/2020] [Accepted: 10/14/2020] [Indexed: 12/20/2022]
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15
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Jayeoye TJ, Rujiralai T. Green, in situ fabrication of silver/poly(3-aminophenyl boronic acid)/sodium alginate nanogel and hydrogen peroxide sensing capacity. Carbohydr Polym 2020; 246:116657. [DOI: 10.1016/j.carbpol.2020.116657] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/09/2020] [Accepted: 06/14/2020] [Indexed: 12/12/2022]
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16
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Investigation of Ultrasonic Treatment on Physicochemical, Structural and Morphological Properties of Sodium Alginate/AgNPs/Apple Polyphenol Films and Its Preservation Effect on Strawberry. Polymers (Basel) 2020; 12:polym12092096. [PMID: 32942637 PMCID: PMC7570076 DOI: 10.3390/polym12092096] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/06/2020] [Accepted: 09/08/2020] [Indexed: 12/19/2022] Open
Abstract
An antibacterial and anti-oxidation composite film was prepared by a casting method using sodium alginate (SA) and apple polyphenols (APPs) as the base material and glycerol as the plasticizer. Silver nanoparticles (AgNPs) were deposited by ultrasonic-assisted electrospray method. The degree of influence of the addition ratio of SA and AgNPs and different ultrasonic time on the mechanical properties, barrier properties, optical properties, and hydrophilicity of the composite film was explored. The composite films were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that the SA: AgNPs ratio of 7:3 and the ultrasonic time for 30 min have the best comprehensive performance, and SA/AgNPs/APP films showed the lowest water vapor permeability value of 0.75 × 10−11 g/m·s·Pa. The composite film has good strength and softness, with tensile strength (TS) and elongation at break (E) at 23.94 MPa and 29.18%, respectively. SEM images showed that the surface of the composite film was smooth and the AgNPs’ distribution was uniform. The composite film showed broad antibacterial activity, and the antibacterial activity of Escherichia coli (92.01%) was higher than that of Staphylococcus aureus (91.26%). However, due to the addition of APP, its antioxidant activity can reach 98.39%, which has a synergistic effect on antibacterial activity. For strawberry as a model, the results showed that this composite film can prolong the shelf life of strawberries for about 8 days at 4 °C, effectively maintaining their storage quality. Compared with the commonly used PE(Polyethylene film) film on the market, it has a greater fresh-keeping effect and can be used as an active food packaging material.
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17
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Bhagyaraj S, Krupa I. Alginate-Mediated Synthesis of Hetero-Shaped Silver Nanoparticles and Their Hydrogen Peroxide Sensing Ability. Molecules 2020; 25:molecules25030435. [PMID: 31972997 PMCID: PMC7038214 DOI: 10.3390/molecules25030435] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/19/2020] [Accepted: 01/19/2020] [Indexed: 12/31/2022] Open
Abstract
A new method for the simple synthesis of stable heterostructured biopolymer (sodium alginate)-capped silver nanoparticles (Ag-NPs) based on green chemistry is reported. The as-prepared nanoparticles were characterized using the ultraviolet-visible (UV-Vis) absorption spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and dynamic light scattering (DLS) techniques. The results showed that the as-prepared Ag-NPs have a heterostructured morphology with particle size in the range 30 ± 18–60 ± 25 nm, showing a zeta potential of −62 mV. The silver nanoparticle formation was confirmed from UV-Vis spectra showing 424 nm as maximum absorption. The particle size and crystallinity of the as-synthesized nanoparticles were analyzed using TEM and XRD measurements, respectively. FTIR spectra confirmed the presence of alginate as capping agent to stabilize the nanoparticles. The Ag-NPs also showed excellent sensing capability, with a linear response to hydrogen peroxide spanning a wide range of concentrations from 10−1 to 10−7 M, which indicates their high potential for water treatment applications, such as pollution detection and nanofiltration composites.
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Affiliation(s)
- Sneha Bhagyaraj
- Correspondence: (S.B.); (I.K.); Tel.: +974-33384499 (S.B); +974-4403-5671 (I.K.)
| | - Igor Krupa
- Correspondence: (S.B.); (I.K.); Tel.: +974-33384499 (S.B); +974-4403-5671 (I.K.)
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18
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Wang Y, Dong X, Zhao L, Xue Y, Zhao X, Li Q, Xia Y. Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu 2+ and S 2. NANOMATERIALS 2020; 10:nano10010083. [PMID: 31906386 PMCID: PMC7023203 DOI: 10.3390/nano10010083] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 12/24/2019] [Accepted: 12/27/2019] [Indexed: 12/25/2022]
Abstract
In the present work, silver nanoparticles (AgNPs) were prepared by a simple and green method using carrageenan as reducing and capping agent. The as-synthesized carrageenan-AgNPs was demonstrated as an effective duel colorimetric sensing for selective and sensitive recognition of Cu2+ and S2−, which could be used to detect these ions with naked eyes. In addition, the possible sensing mechanism was that Cu2+ ions caused serious aggregation of carrageenan-AgNPs, which led to the color change of carrageenan-AgNPs. AgNPs were etched by S2− forming Ag2S, which played an important role in the determination of S2− ions. Furthermore, it has been successfully applied to the determination of Cu2+ and S2− in tap water and lake water, showing its great potential for the analysis of environmental water samples.
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Affiliation(s)
- Yesheng Wang
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (Y.W.); (X.D.); (L.Z.); (Y.X.); (Q.L.)
| | - Xueyi Dong
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (Y.W.); (X.D.); (L.Z.); (Y.X.); (Q.L.)
| | - Li Zhao
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (Y.W.); (X.D.); (L.Z.); (Y.X.); (Q.L.)
| | - Yun Xue
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (Y.W.); (X.D.); (L.Z.); (Y.X.); (Q.L.)
| | - Xihui Zhao
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (Y.W.); (X.D.); (L.Z.); (Y.X.); (Q.L.)
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China;
- Correspondence:
| | - Qun Li
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (Y.W.); (X.D.); (L.Z.); (Y.X.); (Q.L.)
| | - Yanzhi Xia
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China;
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19
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Zhang YH, Shi MJ, Li KL, Xing R, Chen ZH, Chen XD, Wang YF, Liu XF, Liang XY, Sima YH, Xu SQ. Impact of adding glucose-coated water-soluble silver nanoparticles to the silkworm larval diet on silk protein synthesis and related properties. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 31:376-393. [PMID: 31724490 DOI: 10.1080/09205063.2019.1692642] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Biological modifications of the silk fibroin (silk) material have broad applications in textiles, biomedical materials and other industrial materials. It is economical to incorporate nanoparticles to the biosynthesis of silk fibroin by adding them to silkworm larval diets. This strategy may result in the rapid stable production of modified silk. Glucose-coated silver nanoparticles (AgNPs) were used to improve the AgNPs' biocompatibility, and the AgNPs were efficiently incorporated into silk by feeding. Larvae fed with AgNPs produced silk with significantly improved antibacterial properties and altered silk secondary structures. Both positive and negative effects on the growth and synthesis of silk proteins were observed after different AgNPs doses. Larvae feeding with low concentration of 0.02% and medium 0.20% AgNPs have greater transfer efficiencies of AgNPs to silk compared with feeding high concentration of 2.00% AgNPs. In addition, the elongation and tensile strength of the produced silk fibers were also significantly increased, with greater mammalian cell compatibility. The appropriate AgNPs concentration in the diet of silkworms can promote the synthesis of silk proteins, enhance their mechanical properties, improve their antibacterial property and inhibit the presence of Gram-negative bacteria.
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Affiliation(s)
- Yun-Hu Zhang
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Mei-Juan Shi
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Kai-Le Li
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Rui Xing
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, China.,National Engineering Laboratory for Modern Silk (NESLab), Soochow University, Suzhou, China
| | - Zhuo-Hua Chen
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Xue-Dong Chen
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Yong-Feng Wang
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Xiao-Fei Liu
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Xin-Yin Liang
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Yang-Hu Sima
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, China.,National Engineering Laboratory for Modern Silk (NESLab), Soochow University, Suzhou, China
| | - Shi-Qing Xu
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, China.,National Engineering Laboratory for Modern Silk (NESLab), Soochow University, Suzhou, China
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20
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Tong Z, Yang J, Lin L, Wang R, Cheng B, Chen Y, Tang L, Chen J, Ma X. In situ synthesis of poly (γ- glutamic acid)/alginate/AgNP composite microspheres with antibacterial and hemostatic properties. Carbohydr Polym 2019; 221:21-28. [PMID: 31227161 DOI: 10.1016/j.carbpol.2019.05.035] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 05/09/2019] [Indexed: 12/23/2022]
Abstract
In the present work, a poly(γ-glutamic acid)/alginate/silver nanoparticle (PGA/Alg/AgNP) composite microsphere with excellent antibacterial and hemostatic properties was prepared by the in situ UV reduction and emulsion internal gelation method, and its potential application for antibacterial hemostatic dressing was explored. Well dispersed AgNPs were in situ synthesized by a UV reduction method with alginate as stabilizer and reductant. The AgNPs showed excellent antibacterial activities against both gram-negative and gram-positive bacteria. Additionally, the AgNPs prepared by the in-situ UV reduction exhibited better biocompatibility and antibacterial effects than those prepared by the conventional chemical reduction method. PGA/Alg/AgNP composite microspheres were then prepared with the AgNPs by an emulsion internal gelation method. Such microspheres were found to be a porous and hollow network with pH-sensitive swelling properties and excellent hemostatic performance, indicating its application potentials as an advanced antibacterial hemostatic material.
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Affiliation(s)
- Zongrui Tong
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Jueying Yang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Lizhi Lin
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Ruiqi Wang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Bin Cheng
- Department of Clinical Laboratory, Pudong New Area People's Hospital, Shanghai 201200, PR China
| | - Yu Chen
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China.
| | - Liansheng Tang
- Shandong Institute of Pharmaceutical Industry, Shandong Provincial Key Laboratory of Chemical Drugs, Jinan 250101, PR China
| | - Jianying Chen
- Shandong Institute of Pharmaceutical Industry, Shandong Provincial Key Laboratory of Chemical Drugs, Jinan 250101, PR China
| | - Xilan Ma
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China
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21
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Hou X, Xue Z, Xia Y, Qin Y, Zhang G, Liu H, Li K. Effect of SiO2 nanoparticle on the physical and chemical properties of eco-friendly agar/sodium alginate nanocomposite film. Int J Biol Macromol 2019; 125:1289-1298. [DOI: 10.1016/j.ijbiomac.2018.09.109] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 09/16/2018] [Accepted: 09/18/2018] [Indexed: 02/02/2023]
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22
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Li K, Cui S, Hu J, Zhou Y, Liu Y. Crosslinked pectin nanofibers with well-dispersed Ag nanoparticles: Preparation and characterization. Carbohydr Polym 2018; 199:68-74. [DOI: 10.1016/j.carbpol.2018.07.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 06/20/2018] [Accepted: 07/05/2018] [Indexed: 10/28/2022]
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23
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Bordbar M, Mortazavimanesh N. Biosynthesis of waste pistachio shell supported silver nanoparticles for the catalytic reduction processes. IET Nanobiotechnol 2018; 12:939-945. [PMID: 30247134 DOI: 10.1049/iet-nbt.2017.0266] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Silver nanoparticles (NPs) are immobilised on pistachio shell surface by Cichorium intybus L. leaves extract as an antioxidant media. The Fourier transform infrared spectra, X-ray diffraction, field-emission scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy, and transmission electron microscope analyses confirmed the support of silver NPs on the pistachio shell (Ag NPs/pistachio shell). Ag NPs on the pistachio shell had a diameter basically in the 10-15 nm range. Reduction reactions of 4-nitrophenol (4-NP), and organic dyes at ambient condition were used in the investigation of the catalytic performance of the prepared catalyst. Through this research, the Ag NPs/pistachio shell shows a high activity and recyclability, and reusability without loss of its catalytic activity.
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Affiliation(s)
- Maryam Bordbar
- Department of Chemistry, Faculty of Science, University of Qom, Qom 37185-359, Iran.
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24
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Microbicidal gentamicin-alginate hydrogels. Carbohydr Polym 2018; 186:159-167. [PMID: 29455973 DOI: 10.1016/j.carbpol.2018.01.044] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 01/06/2018] [Accepted: 01/13/2018] [Indexed: 12/22/2022]
Abstract
Sodium alginate (Alg) reacted with antibiotic gentamicin sulfate (GS) in an aqueous-phase condition mediated by carbodiimide chemistry, in the molar ratios Alg: GS of (1:0.5), (1:1) and (1:2). The Alg-GS conjugated derivatives were characterized by elemental analysis for nitrogen content, Fourier transform infrared spectroscopy in the attenuated total reflection mode (FTIR-ATR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), thermogravimetric analyses (TGA) and water sorption measurements. XPS and FTIR-ATR analyses clearly indicated that GS molecules covalently attached to the backbone of the alginate chains by amide bond formation. The highest amount of GS bound to Alg (43.5 ± 0.4 wt%) and the highest swelling ratio (4962 ± 661%) were observed for the Alg-GS (1:2) sample. Bioluminescence assays with Pseudomonas aeruginosa PAO1/lecA:lux and colony forming counting of Staphylococcus aureus and Escherichia coli upon contact with all Alg-GS conjugates revealed microbicidal activity; however, Alg-GS (1:2) was the most efficient, due to the highest GS content.
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25
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Burdușel AC, Gherasim O, Grumezescu AM, Mogoantă L, Ficai A, Andronescu E. Biomedical Applications of Silver Nanoparticles: An Up-to-Date Overview. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E681. [PMID: 30200373 PMCID: PMC6163202 DOI: 10.3390/nano8090681] [Citation(s) in RCA: 587] [Impact Index Per Article: 97.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 08/24/2018] [Accepted: 08/28/2018] [Indexed: 12/18/2022]
Abstract
During the past few years, silver nanoparticles (AgNPs) became one of the most investigated and explored nanotechnology-derived nanostructures, given the fact that nanosilver-based materials proved to have interesting, challenging, and promising characteristics suitable for various biomedical applications. Among modern biomedical potential of AgNPs, tremendous interest is oriented toward the therapeutically enhanced personalized healthcare practice. AgNPs proved to have genuine features and impressive potential for the development of novel antimicrobial agents, drug-delivery formulations, detection and diagnosis platforms, biomaterial and medical device coatings, tissue restoration and regeneration materials, complex healthcare condition strategies, and performance-enhanced therapeutic alternatives. Given the impressive biomedical-related potential applications of AgNPs, impressive efforts were undertaken on understanding the intricate mechanisms of their biological interactions and possible toxic effects. Within this review, we focused on the latest data regarding the biomedical use of AgNP-based nanostructures, including aspects related to their potential toxicity, unique physiochemical properties, and biofunctional behaviors, discussing herein the intrinsic anti-inflammatory, antibacterial, antiviral, and antifungal activities of silver-based nanostructures.
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Affiliation(s)
- Alexandra-Cristina Burdușel
- Faculty of Engineering in Foreign Languages, University Politehnica of Bucharest, 313 Splaiul Independenței, Bucharest 060042, Romania.
| | - Oana Gherasim
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, Bucharest 011061, Romania.
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomiștilor Street, Magurele 077125, Romania.
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, Bucharest 011061, Romania.
| | - Laurențiu Mogoantă
- Research Center for Microscopic Morphology and Immunology, University of Medicine and Pharmacy of Craiova, 2 Petru Rareș Street, Craiova 200349, Romania.
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, Bucharest 011061, Romania.
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gheorghe Polizu Street, Bucharest 011061, Romania.
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26
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Zhao L, Song J, Xue Y, Zhao X, Deng Y, Li Q, Xia Y. Green Synthesis of Ag–Au Bimetallic Nanoparticles with Alginate for Sensitive Detection of H2O2. Catal Letters 2018. [DOI: 10.1007/s10562-018-2522-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Saran S, Manjari G, Devipriya SP. A Facile and Convenient Route for Synthesis of Silver Biopolymer Gel Bead Nanocomposites by Different Approach Towards Immobilization and Its Catalytic Applications. Catal Letters 2018. [DOI: 10.1007/s10562-018-2350-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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28
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Antimicrobial activity and fouling resistance of a polyvinylidene fluoride (PVDF) hollow-fiber membrane. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.11.042] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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