Detection of benzalkonium chloride on glass surfaces using silver nanoparticles

2021 ◽  
Author(s):  
Nguyễn Hoàng Ly ◽  
Phuong‐Dong Nguyen ◽  
Sang Jun Son ◽  
Cheolmin Lee ◽  
Soonmin Jang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Benzalkonium Chloride ◽  
Glass Surfaces

scholarly journals Clinical Application of Silver Nanoparticles Coated by Benzalkonium Chloride

Coatings ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1382
Author(s):  
Shakeel Ahmed Ansari ◽  
Asim Muhammed Alshanberi
Keyword(s):  
Silver Nanoparticles ◽  
Surface Modification ◽  
Benzalkonium Chloride ◽  
Experimental Conditions ◽  
E Coli ◽  
Neem Leaves ◽  
Potential Applications ◽  
Research Findings ◽  
Bioactive Agents ◽  
Biomedical Fields

The present study investigates the surface modification of AgNPs (synthesized by neem leaves) by benzalkonium chloride (BAC). It was observed that 22 × 109 CFU were formed at 0.25 mM AgNPs concentration. However, it was reduced to 14 × 109 CFU for BAC-coated AgNPs at similar experimental conditions. The enzymatic activity of β-glucosidase was significantly enhanced from 0.0625 mM to 0.5 mM concentration of AgNPs, as well as BAC–AgNPs. However, there was no further change of activity beyond this concentration. ZOI of AgNPs and BAC–AgNPs was measured against E. coli, B. subtilis, P. aeruginosa, and S pneumoniae at 0.25 mM and 0.50 mM concentrations of these bioactive agents. ZOI was 3.45 cm and 3.56 cm for AgNPs and BAC–AgNPs at 0.25 mM of these bioactive agents, respectively, against E. coli. However, these values were 4.28 cm and 4.40 cm, respectively, against B. subtilis. ZOI was obtained at 3.36 cm and 3.47 cm, respectively, against P. aeruginosa under similar experimental concentrations. However, ZOI was achieved at 3.44 cm and 3.62 cm, respectively, against S. pneumonia, under similar experimental conditions. Hence, such research findings can be exploited for potential applications in numerous environmental and biomedical fields.

Silver nanoparticles preferentially reduced on PEG-grafted glass surfaces for SERS applications

2013 ◽  
Vol 48 (4) ◽  
pp. 1523-1529 ◽  
Author(s):  
Sang-Myung Lee ◽  
Hong-Jun Cho ◽  
Ji Yun Han ◽  
Hyo-Jin Yoon ◽  
Kwang-Ho Lee ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Glass Surfaces

Self-assembled monolayers of silver nanoparticles firmly grafted on glass surfaces: Low Ag+ release for an efficient antibacterial activity

2010 ◽  
Vol 350 (1) ◽  
pp. 110-116 ◽  
Author(s):  
Piersandro Pallavicini ◽  
Angelo Taglietti ◽  
Giacomo Dacarro ◽  
Yuri Antonio Diaz-Fernandez ◽  
Matteo Galli ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Glass Surfaces

scholarly journals Biocompatibility and Surface Characteristics of Resin-Modified Glass Ionomer Cements with Ammonium Quaternary Compounds or Silver Nanoparticles: AnIn VitroStudy

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Silvia Munguía-Moreno ◽  
Gabriel-Alejandro Martínez-Castañón ◽  
Nuria Patiño-Marín ◽  
Claudio Cabral-Romero ◽  
Norma-Verónica Zavala-Alonso
Keyword(s):  
Silver Nanoparticles ◽  
Benzalkonium Chloride ◽  
Cetylpyridinium Chloride ◽  
Surface Characteristics ◽  
The Elderly ◽  
Control Group ◽  
Hexadecyltrimethylammonium Bromide ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
Resin Modified Glass Ionomer

Glass ionomer cements are materials with diverse clinical applications. Its use is indicated in patients with special needs, pediatric patients, and the elderly; accordingly, it is important to know its properties. The aim of the present study was to determine the cytotoxicity, surface roughness, microhardness, and surface characteristics of GC Fuji ORTHO LC and GC Fuji PLUS resin-modified glass ionomer cements (RMGICs) with 1 and 2% of benzalkonium chloride, cetylpyridinium chloride, hexadecyltrimethylammonium bromide, or silver nanoparticles. All the experimental groups increase or decrease statistically significantly the VHN (P<0.05) compared with the control group, except for GC Fuji PLUS added with hexadecyltrimethylammonium bromide 1 wt%. In the same way, all groups show a statistically significant (P<0.05) increase or decrease in Ra compared with the control group except for GC Fuji ORTHO added with benzalkonium chloride 2 wt%, GC Fuji PLUS added with benzalkonium chloride 2 wt%, and GC Fuji PLUS added with cetylpyridinium chloride 2 wt%. The SEM micrographs show similar surface images between the control and experimental groups. When a dental material is modified, it is important to reevaluate its biological and mechanical characteristics. In the present study, all the additions modified the cytotoxicity and surface characteristics of RMGICs, by increasing or decreasing these properties.

Binary cooperative complementary nanoscale interfacial materials. Reduction of silver nanoparticles in DMF. Formation of monolayers and stable colloids

2000 ◽  
Vol 72 (1-2) ◽  
pp. 83-90 ◽  
Author(s):  
Isabel Pastoriza-Santos ◽  
Luis M. Liz-Marzán
Keyword(s):  
Thin Films ◽  
Silver Nanoparticles ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Reduction Process ◽  
Reducing Ability ◽  
Active Metal ◽  
Silane Coupling ◽  
Catalytically Active ◽  
Glass Surfaces

We explore in this article the reduction of Ag + ions by N,N-dimethylformamide (DMF), both in the presence and in the absence of a stabilizing agent. The reduction can lead to the formation of either thin films of silver nanoparticles electrostatically attached onto glass surfaces, or stable dispersions of silver nanoparticles if the silane coupling agent 3-aminopropyltrimethoxysilane (APS) is present. The different parameters affecting the reduction process are discussed, and the reducing ability of DMF is compared with that of ethanol, which is often used for the production of catalytically active metal colloids.

Antimicrobial activity of bleached cattail fibers ( Typha domingensis ) impregnated with silver nanoparticles and benzalkonium chloride

2021 ◽  
pp. 50885
Author(s):  
Marivane Turim Koschevic ◽  
Renata Pires Araújo ◽  
Vitor Augusto Garcia ◽  
Farayde Matta Fakhouri ◽  
Kelly Mari Pires Oliveira ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Silver Nanoparticles ◽  
Benzalkonium Chloride ◽  
Typha Domingensis

Synthesis, performance and growth mechanism of silver nanoparticle coated SERS fiber probe

2019 ◽  
Vol 107 (3) ◽  
pp. 305
Author(s):  
Mengmei Geng ◽  
Yuting Long ◽  
Tongqing Liu ◽  
Zijuan Du ◽  
Hong Li ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Absorption Spectrum ◽  
Reaction Time ◽  
Growth Mechanism ◽  
Fiber Optic ◽  
Fiber Optic Probe ◽  
Visible Absorption ◽  
Fiber Probe ◽  
Surface Enhanced Raman ◽  
Optic Probe

Surface-enhanced Raman Scattering (SERS) fiber probe provides abundant interaction area between light and materials, permits detection within limited space and is especially useful for remote or in situ detection. A silver decorated SERS fiber optic probe was prepared by hydrothermal method. This method manages to accomplish the growth of silver nanoparticles and its adherence on fiber optic tip within one step, simplifying the synthetic procedure. The effects of reaction time on phase composition, surface plasmon resonance property and morphology were investigated by X-ray diffraction analysis (XRD), ultraviolet-visible absorption spectrum (UV-VIS absorption spectrum) and scanning electron microscope (SEM). The results showed that when reaction time is prolonged from 4–8 hours at 180 °C, crystals size and size distribution of silver nanoparticles increase. Furthermore, the morphology, crystal size and distribution density of silver nanoparticles evolve along with reaction time. A growth mechanism based on two factors, equilibrium between nucleation and growth, and the existence of PVP, is hypothesized. The SERS fiber probe can detect rhodamin 6G (R6G) at the concentration of 10−6 M. This SERS fiber probe exhibits promising potential in organic dye and pesticide residue detection.

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