scholarly journals A sensitive and selective electrochemical biosensor for the determination of beta-amyloid oligomer by inhibiting the peptide-triggered in situ assembly of silver nanoparticles

2017 ◽  
Vol Volume 12 ◽  
pp. 3171-3179 ◽  
Author(s):  
Yun Xing ◽  
Xiao-Zhen Feng ◽  
Lipeng Zhang ◽  
Jiating Hou ◽  
Guo-Cheng Han ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Electrochemical Biosensor ◽  
Beta Amyloid ◽  
Amyloid Oligomer

scholarly journals An in situ SAXS investigation of the formation of silver nanoparticles and bimetallic silver–gold nanoparticles in controlled wet-chemical reduction synthesis

2020 ◽  
Vol 2 (1) ◽  
pp. 225-238 ◽  
Author(s):  
Paulo R. A. F. Garcia ◽  
Oleg Prymak ◽  
Viktoria Grasmik ◽  
Kevin Pappert ◽  
Wagner Wlysses ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Online Monitoring ◽  
Chemical Reduction ◽  
Structural Parameters ◽  
Nanoparticle Synthesis ◽  
Small Particles ◽  
Metallic Nanoparticle ◽  
Wet Chemical

In situ investigation of metallic nanoparticle synthesis with an online monitoring of the system by SAXS. Determination of structural parameters and growth processes. Ag-NP synthesis presented a bimodal system with the presence of small particles (∼3 nm).

Nylon-Supported Plasmonic Assay Based on the Aggregation of Silver Nanoparticles: In Situ Determination of Hydrogen Sulfide-like Compounds in Breath Samples as a Proof of Concept

ACS Sensors ◽  
2019 ◽  
Vol 4 (8) ◽  
pp. 2164-2172 ◽  
Author(s):  
Neus Jornet-Martínez ◽  
Lusine Hakobyan ◽  
Ana Isabel Argente-García ◽  
Carmen Molins-Legua ◽  
Pilar Campíns-Falcó
Keyword(s):  
Silver Nanoparticles ◽  
Hydrogen Sulfide ◽  
Proof Of Concept ◽  
Plasmonic Assay

scholarly journals In Situ Functionalization of Silver Nanoparticles by Gallic Acid as a Colorimetric Sensor for Simple Sensitive Determination of Melamine in Milk

ACS Omega ◽  
2021 ◽  
Vol 6 (36) ◽  
pp. 23630-23635
Author(s):  
Xuexia Liu ◽  
Juan Wang ◽  
Yinfeng Wang ◽  
Chunfang Huang ◽  
Zhijun Wang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Gallic Acid ◽  
Colorimetric Sensor ◽  
Sensitive Determination ◽  
In Situ Functionalization

scholarly journals Anchoring silver nanoparticles on imidazolium-based poly(ionic liquid)s with engineered nanopores as an efficient carrier for anticancer drug controlled delivery with antimicrobial effect

2022 ◽  
Author(s):  
Ehsan Aliakbari ◽  
Reza Eghdam Zamiri ◽  
Mehri Mahdavi ◽  
Vahid Yousefi
Keyword(s):  
Drug Delivery ◽  
Silver Nanoparticles ◽  
Ionic Liquid ◽  
Antimicrobial Effect ◽  
Antibacterial Activities ◽  
E Coli ◽  
Ft Ir ◽  
Poly Ionic Liquid

Abstract Due to the significance of drug delivery, the design of novel progressive nanomaterials for targeting drug delivery is a significant role in pharmacotherapy, as this method is supposed to reach a more exact target. One of the most distinguished materials by researchers is the poly ionic liquid (PIL), which have been used as anticancer drugs carriers and notably improve the antitumor effect and half-life. In this work, an efficient and stable nanocarrier containing silver nanoparticle, which were well distributed throughout the ionic liquid-based copolymer network (PILP-Ag), was reported for the drug delivery with antimicrobial effect. PILP was synthesized by radical silver nanoparticles was anchored into PIL voids by in-situ reduction, which enrich the adsorption capability of drug and antimicrobial effect of the nanocarrier. The synthesized nanomaterials were characterized by various techniques such as BET, TGA, SEM, TEM, AAS and FT-IR spectroscopy. The antibacterial activities of the silver-containing PIL against both S. aureus and E. coli were studied by determination of the minimum inhibitory concentration and Minimum Bactericidal Concentration.

Spectrofluorimetric determination of Hg2+ and Pb2+ using acetylcholinesterase (AChE)-based formation of silver nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (25) ◽  
pp. 21261-21270 ◽  
Author(s):  
D. Nanda Kumar ◽  
Jaydeep Roy ◽  
S. A. Alex ◽  
N. Chandrasekaran ◽  
A. Mukherjee
Keyword(s):  
Silver Nanoparticles ◽  
Detection Method ◽  
Fluorimetric Detection ◽  
Stabilizing Agent ◽  
Spectrofluorimetric Determination ◽  
Hydrolysis Of

A novel fluorimetric detection method for Hg2+ and Pb2+ based on in situ formation of AgNPs, where thiocholine (TCh), a product obtained by the hydrolysis of acetylcholine (ACh) by acetylcholinesterase (AChE), can act as a stabilizing agent.

INDIREKTE PAPIERCHROMATOGRAPHISCHE METHODE ZUR BESTIMMUNG DER HARNOESTROGENE

1961 ◽  
Vol 38 (4) ◽  
pp. 545-562 ◽  
Author(s):  
L. Kecskés ◽  
F. Mutschler ◽  
I. Glós ◽  
E. Thán ◽  
I. Farkas ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Granulosa Cell ◽  
Iron Content ◽  
List Type ◽  
Granulosa Cell Tumour ◽  
Hydrolysis Of ◽  
Phenol Fraction ◽  
Qualitative Determination

ABSTRACT 1. An indirect paperchromatographic method is described for separating urinary oestrogens; this consists of the following steps: acidic hydrolysis, extraction with ether, dissociation of phenol-fractions with partition between the solvents. Previous purification of phenol fraction with the aid of paperchromatography. The elution of oestrogen containing fractions is followed by acetylation. Oestrogen acetate is isolated by re-chromatography. The chromatogram was developed after hydrolysis of the oestrogens 'in situ' on the paper. The quantity of oestrogens was determined indirectly, by means of an iron-reaction, after the elution of the iron content of the oestrogen spot, which was developed by the Jellinek-reaction. 2. The method described above is satisfactory for determining urinary oestrogen, 17β-oestradiol and oestriol, but could include 16-epioestriol and other oestrogenic metabolites. 3. The sensitivity of the method is 1.3–1.6 μg/24 hours. 4. The quantitative and qualitative determination of urinary oestrogens with the above mentioned method was performed in 50 pregnant and 9 non pregnant women, and also in 2 patients with granulosa cell tumour.

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