Synthesis and antibacterial performance of size-tunable silver nanoparticles with electrospun nanofiber composites

2011 ◽  
Vol 161 (19-20) ◽  
pp. 2124-2128 ◽  
Author(s):  
Hang Hoon Chae ◽  
Bo-Hye Kim ◽  
Kap Seung Yang ◽  
Jong Il Rhee
Keyword(s):  
Silver Nanoparticles ◽  
Electrospun Nanofiber ◽  
Antibacterial Performance

scholarly journals Antibacterial performance of polymer quaternary ammonium salt–capped silver nanoparticles on Bacillus subtilis in water

RSC Advances ◽  
2019 ◽  
Vol 9 (44) ◽  
pp. 25667-25676 ◽  
Author(s):  
Jingyu Wang ◽  
Minghao Sui ◽  
Zhanfang Ma ◽  
Hongwei Li ◽  
Bojie Yuan
Keyword(s):  
Silver Nanoparticles ◽  
Bacillus Subtilis ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Antibacterial Performance ◽  
Antibacterial Capacity

Polymer quaternary ammonium salt–capped silver nanoparticles (PQAS–AgNPs) were synthesized, and they exhibited significant antibacterial capacity against Bacillus subtilis.

Interior vs. Exterior Incorporation of Silver Nanoparticles in Cotton Fiber and Washing Durability

2021 ◽  
Vol 8 (6) ◽  
pp. 1-12
Author(s):  
Sunghyun Nam ◽  
Sonia E. Chavez ◽  
Matthew B. Hillyer ◽  
Brian D. Condon ◽  
Hongqing Shen ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Cotton Fabric ◽  
Cotton Fiber ◽  
Detergent Solution ◽  
Ag Nps ◽  
Antibacterial Performance ◽  
The Poor ◽  
Washing Durability ◽  
Textile Products

The popular use of silver nanoparticles (Ag NPs) in commercial textile products that inhibit odor- and/or infection-causing bacteria has continuously raised concerns about their washing durability. The poor durability not only deteriorates the antibacterial performance, but also results in unwanted leaching of NPs into washing solutions. In this study, we showed how the incorporation location of Ag NPs—interior vs. exterior of cotton fiber—governs their durability against consecutive simulated home launderings. The superior washing durability of interior NPs was confirmed. The Ag losses after 50 laundering cycles for interior and exterior systems were 16% and 63% in water and 24% and 78% in detergent solution, respectively. The cotton fabric containing interior NPs predominantly released ionic Ag, whereas the fabric containing exterior NPs released particulate Ag.

Preparation of mesoporous silica-based nanocomposites with synergistically antibacterial performance from nano-metal (oxide) and polydopamine

2021 ◽  
Author(s):  
Guofeng Su ◽  
Ximing Zhong ◽  
Songfa Qiu ◽  
Jiajin Fan ◽  
hongjun zhou ◽  
...  
Keyword(s):  
Particle Size ◽  
Silver Nanoparticles ◽  
Mesoporous Silica ◽  
Synergistic Effect ◽  
Practical Applications ◽  
Antibacterial Performance ◽  
Large Size ◽  
Zinc Oxides ◽  
Nanocomposite System ◽  
Nano Zinc

Abstract In this work, a novel antibacterial nanocomposite system was developed using mesoporous silica (MSN) as an effective nanocarrier, and the resultant nanocomposites demonstrated remarkable antibacterial performance due to the synergistic effect among nano zinc oxides, silver nanoparticles, and polydopamine (PDA). The successful synthesis of MSN/ZnO@PDA/Ag nanocomposites was confirmed. The physicochemical properties and the morphologies of these nanocomposites were investigated. It was found that the particle size increased along with the evolution of these nanocomposites. Besides, nano zinc oxides were formed in the nanoconfinement channel of mesoporous silica with a particle size about 2 nm, and that of silver nanoparticle was less than 50 nm. In addition, the results revealed that the presence of mesoporous silica could effectively prevent the formation of large-size silver nanoparticles and facilitate their well dispersion. Due to the synergistic effect among nano zinc oxides, silver nanoparticles, and polydopamine, these nanocomposites exhibited remarkable antibacterial performance even at a low concentration of 313 ppm, and the antibacterial mechanism was also elucidated. Therefore, this work provides a facile and controllable approach to preparing synergistically antibacterial nanocomposites, and the remarkable antibacterial performance make them suitable for practical applications.

Pretreated Lignocellulosic Waste Mediated Biosynthesis of Silver Nanoparticles Under Room Temperature

2016 ◽  
Vol 15 (05n06) ◽  
pp. 1660001 ◽  
Author(s):  
V. P. Manjamadha ◽  
Karuppan Muthukumar
Keyword(s):  
Silver Nanoparticles ◽  
Silver Nitrate ◽  
Room Temperature ◽  
Nitrate Solution ◽  
Silver Ions ◽  
Silver Nitrate Solution ◽  
Morphological Characterization ◽  
Alternative Source ◽  
X Ray ◽  
Antibacterial Performance

The current work elucidates the utilization of biowaste as a valuable reducing agent for the synthesis of silver nanoparticles. In this study, the wastewater generated during the alkaline pretreatment of lignocellulosic wastes (APLW) was used as a bioreductant to reduce silver nitrate under room temperature. Synthesis of stable silver nanoparticles (AgNPs) was achieved rapidly on addition of APLW into the silver nitrate solution (1[Formula: see text]mM). The morphological characterization of AgNPs was performed using field emission scanning electron microscopy (FESEM). The micrograph clearly depicted the presence of spherical AgNPs. The presence of elemental silver along with biomoilties was determined using energy dispersive X-ray spectroscopy (EDAX) analysis. The X-ray diffraction (XRD) study proved the crystalline form of stable AgNPs. The AgNPs exhibited excellent antibacterial performance against Gram negative organism. The immediate bioreduction of silver ions using APLW was well illustrated in the present study. Thus, APLW serve as an alternative source for reducing agents instead of utilizing valuable medicinal plants for nanoparticles synthesis.

scholarly journals Enhanced Antibacterial Performance and Cytocompatibility of Silver Nanoparticles Stabilized by Cellulose Nanocrystal Grafted with Chito-Oligosaccharides

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1339 ◽  
Author(s):  
Xiaohui Ni ◽  
Jinru Wang ◽  
Yiying Yue ◽  
Wanli Cheng ◽  
Dong Wang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Human Body ◽  
Average Diameter ◽  
Cell Compatibility ◽  
Hydrolysis Method ◽  
Antibacterial Performance ◽  
One Step ◽  
Thermal Stability Of ◽  
Better Than

The agglomeration of silver nanoparticles (AgNPs) results in poor antibacterial performance, and the accumulation of silver in the human body threatens human health. Preparing a matrix is a technique worth considering as it not only prevents the aggregation of AgNPs but also reduces deposition of AgNPs in the human body. In this paper, carboxy-cellulose nanocrystals (CCNC) were prepared by a simple one-step acid hydrolysis method. Chito-oligosaccharides (CSos) were grafted onto the surface of CCNC to form CSos-CCNC composite nanoparticles. CCNC and CSos-CCNC were used as stabilizers for deposing AgNPs and two types of complexes—AgNPs-CCNC and AgNPs-CSos-CCNC—were obtained, respectively. The influence of the two stabilizer matrices—CCNC and CSos-CCNC—on the morphology, thermal behavior, crystal structure, antibacterial activity, and cell compatibility of AgNPs-CCNC and AgNPs-CSos-CCNC were examined. The results showed that the AgNPs deposited on the CSos-CCNC surface had a smaller average diameter and a narrower particle size distribution compared with the ones deposited on CCNC. The thermal stability of AgNPs-CSos-CCNC was better than that of AgNPs-CCNC. AgNPs did not affect the crystalline structure of CCNC and CSos-CCNC. The antibacterial activity of AgNPs-CSos-CCNC was better than that of AgNPs-CCNC based on antibacterial studies using Escherichia coli, Staphylococcus aureus, and Klebsiella pneumoniae. The cytotoxicity of AgNPs-CSos-CCNC was remarkably lower than that of AgNPs-CCNC.

scholarly journals In Situ Synthesis of Silver Nanoparticles on Cellulose Fibers Using D-Glucuronic Acid and Its Antibacterial Application

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3101 ◽  
Author(s):  
Guangxue Chen ◽  
Linjuan Yan ◽  
Xiaofang Wan ◽  
Qiankun Zhang ◽  
Qing Wang
Keyword(s):  
Silver Nanoparticles ◽  
Photoelectron Spectroscopy ◽  
Glucuronic Acid ◽  
Pulp Fibers ◽  
X Ray ◽  
Agno3 Solution ◽  
Antibacterial Performance ◽  
Hardwood Pulp ◽  
Green Technique

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.

Antibacterial performance on plasma polymerized heptylamine films loaded with silver nanoparticles

2016 ◽  
Vol 56 (1S) ◽  
pp. 01AC07 ◽  
Author(s):  
Yu-Chun Lin ◽  
Chia-Chun Lin ◽  
Chih-Hao Lin ◽  
Meng-Jiy Wang
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Performance

Antibacterial performance of hybrid nanocomposite coatings containing clay and silver nanoparticles

2021 ◽  
pp. 127354
Author(s):  
Hugo F. Giraldo Mejía ◽  
Karina Herrera Seitz ◽  
Matías Valdés ◽  
Abdusalam Uheida ◽  
Raúl A. Procaccini ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Nanocomposite Coatings ◽  
Hybrid Nanocomposite ◽  
Antibacterial Performance
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