Efficient and selective removal of Ag+ as nano silver particles by the composite of SiO2 supported nano ferrous oxalate

In order to explain the interaction between collagen and nano-silver, gelatin solution was blended with nano-silver particles (AgNPs) with particle size 26 mm, and then the mixture was interacted under different time, pH and temperature. The changes in the process were measured by UV-Vis, fluorescence spectroscopy, dynamic light scattering and FT-IR. The results showed that the main type of reaction between gelatin and AgNPs was electrostatic interaction and the interaction was diffusive encounters. The particle size and distribution of nano-silver would not be affected by gelatin, however, there was dynamic fluorescence quenching of gelatin after nano-silver particle induced. The longer time and lower pH were beneficial for the interaction process while the interaction balanced after 60 min and pH 3.0 resulted in the most drastic interaction. Moreover, nano-silver would not impair gelatin structure during the interaction process. In short, the results in this work might be a foundation and reference for applying nano-silver in antibacterial leather producing.

Download Full-text

Green synthesis of nano-silver particles from leaf and stem extracts of Iboza (Tetradenia riparia)

African Journal of Traditional Complementary and Alternative Medicines ◽

10.4314/ajtcam.v12i6.5 ◽

2015 ◽

Vol 12 (6) ◽

pp. 33 ◽

Cited By ~ 2

Author(s):

Shakira Shaik ◽

Lwamkelekile Mkize ◽

Mthokozisi Khumalo ◽

Nisha Singh

Keyword(s):

Green Synthesis ◽

Silver Particles ◽

Nano Silver

Download Full-text

Interconnect Fabrication on Polymer Substrate using Submicron/Nano Silver Particles with the Assistance of Low-Density Irradiations

JOM ◽

10.1007/s11837-019-03595-5 ◽

2019 ◽

Vol 71 (9) ◽

pp. 3057-3065

Author(s):

Guo-Lun Huang ◽

Po-Hsiang Chiu ◽

Masahisa Fujino ◽

Jenn-Ming Song

Keyword(s):

Polymer Substrate ◽

Low Density ◽

Silver Particles ◽

Nano Silver

Download Full-text

Synthesis and surface chemistry of nano silver particles

Polyhedron ◽

10.1016/j.poly.2009.05.038 ◽

2009 ◽

Vol 28 (12) ◽

pp. 2522-2530 ◽

Cited By ~ 141

Author(s):

Revathi Janardhanan ◽

Murugan Karuppaiah ◽

Neha Hebalkar ◽

Tata Narsinga Rao

Keyword(s):

Surface Chemistry ◽

Silver Particles ◽

Nano Silver

Download Full-text

Application of Nano Drug Carrier in the Detection of Human Hemoglobin Content

Nanoscience and Nanotechnology Letters ◽

10.1166/nnl.2020.3089 ◽

2020 ◽

Vol 12 (2) ◽

pp. 125-131

Author(s):

Jixing Yang

Keyword(s):

Modified Electrode ◽

Silver Particle ◽

Drug Carrier ◽

Silver Electrode ◽

Reduction Peak ◽

Human Hemoglobin ◽

Silver Particles ◽

Hemoglobin Content ◽

Peak Current ◽

Nano Silver

This paper studies the application of nano drug carrier in the detection of human hemoglobin content. Taking nano modified electrode as nano drug carrier, the application of nano silver particle modified silver electrode and nano poly thionine modified electrode in the detection of human hemoglobin content is studied. Atomic force microscope, UV-Vis and FT-IR are used to characterize the nano poly(thionine), and the electrochemical properties of nano poly(thionine) modified electrode. The silver electrode decorated with nano silver particles is made. The electrochemical behavior of hemoglobin on the modified electrode is studied. The experimental results show that a pair of redox peaks appear in the silver electrode modified by nano silver particles. With the increase of Hb concentration, the redox peak current in the cyclic voltammogram of the silver electrode modified by nano silver particles increases correspondingly, and the hemoglobin has a good current response on the silver electrode modified by nano silver particles, which is a kind of adsorption current. The electrochemical activity of nano poly thionine shows a decreasing tendency with pH value. After adding hemoglobin, there is a significant reduction peak near –0.4 V. With the increase of hemoglobin concentration, the reduction peak current increases accordingly. The nano poly thionine modified electrode has a catalytic effect on the reduction of hemoglobin. The results show that the two nano drug carriers, nano poly thionine modified electrode and nano silver particle modified silver electrode, can effectively analyze and determine human hemoglobin.

Download Full-text

Impact of the Utilization of Nano Silver particles in Textile Materials

Journal of Environmental Nanotechnology ◽

10.13074/jent.2013.06.132016 ◽

2013 ◽

Vol 2 (2) ◽

pp. 56-65

Author(s):

Keyword(s):

Silver Particles ◽

Nano Silver ◽

Textile Materials

Download Full-text

Safety evaluation of hair-dryers marketed as emitting nano silver particles

Safety Science ◽

10.1016/j.ssci.2016.11.021 ◽

2017 ◽

Vol 93 ◽

pp. 121-126

Author(s):

Alicia A. Taylor ◽

M. Yusuf Khan ◽

Jennifer Helbley ◽

Sharon L. Walker

Keyword(s):

Safety Evaluation ◽

Silver Particles ◽

Nano Silver

Download Full-text

Antibacterial and Nontoxic Nano Silver PLLA Composites for Tissue Engineering

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.47-50.849 ◽

2008 ◽

Vol 47-50 ◽

pp. 849-852 ◽

Cited By ~ 2

Author(s):

Lin Li ◽

Yi Li ◽

Jia Shen Li ◽

Lei Yao ◽

Arthur F.T. Mak ◽

...

Keyword(s):

Tissue Engineering ◽

Cell Proliferation ◽

Antibacterial Property ◽

In Vitro Cytotoxicity ◽

Silver Particles ◽

Nano Silver

Poly-L-Lactide (PLLA) composites were prepared with nano silver particles with the weight ratios of nano silver particles to PLLA (Ag/PLLA) at 0.5%, 2.5%, 5%, 7.5% and 10% (w/w). In vitro cytotoxicity tests were conducted firstly to evaluate the cytotoxicity of the composites. The results indicated that PLLA, 0.5%, 2.5% and 5% Ag/PLLA composites were nontoxic to cells, while 7.5% and 10% Ag/PLLA composites were significantly toxic to cells. Cell proliferation experiments and antibacterial tests were also performed. 5% Ag/PLLA was found the best for cell proliferation with obvious antibacterial property. Thus, Ag/PLLA can be used as nontoxic scaffolds for tissue engineering with antibacterial property.

Download Full-text

Preparation of Nano-Ag Particles and Antibacterial Dope Loaded Silver

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.336-338.2115 ◽

2007 ◽

Vol 336-338 ◽

pp. 2115-2117 ◽

Cited By ~ 2

Author(s):

Jie Yin ◽

Yun Zhang ◽

Guang Fu Yin ◽

Ping Zhang

Keyword(s):

Colloidal Dispersion ◽

Particle Aggregation ◽

Raw Material ◽

Preparation Process ◽

Optimal Conditions ◽

Silver Particles ◽

Nano Silver ◽

Ag Particles ◽

Main Factors ◽

Nano Size

The nano-size silver particles were prepared in polymer-protecting colloidal dispersion with silver nitride as the raw material, hydrazine hydrate as the reduction reagent and polyvinyl pirrolidone (PVP) as the protective solvent. The optimal conditions for the preparation process were studied experimentally as well. The influences from main factors, such as Ag+ concentration and ratio of hydrazine/AgNO3, on the particle size, appearance shape, particle aggregation condition and size distribution of nano-silver particles were also investigated. The results showed that the size of Ag particles prepared in this polymer-protecting system is less than 50 nm, and PVP can reduce the growing tendency of nano-size silver particles. Meanwhile, the antibacterial dope loaded nano-silver particles were prepared by wetting agent, dispersant, defoamer, etc. The antibacterial and bacteriostatic effects of the dope with or without nano-silver particles were tested with bacilli as the tested bacteria. The experiment results showed that the dope loaded nano-silver particles are of high practicality. Its antibacterial ratio is also up to 91.9% in one hour when the added dosage of nano-silver is 0.02%.

Download Full-text