Results 11 to 20 of about 219,483 (269)

A Four-Hour Carbapenem Inactivation Method (CIMB.S) Using Bacillus stearothermophilus as Indicator Strain

Frontiers in Medicine, 2020
Objectives: There is an urgent need for accurate and fast diagnostic tests to identify carbapenemase-producing bacteria. Here we used Bacillus stearothermophilus as an indicator strain in the format of the carbapenem inactivation method (CIM) procedure ...
Ze-Hua Cui, Ze-Hua Cui, Ling Jia, Ling Jia, Lu Han, Lu Han, Tian Tang, Tian Tang, Zi-Xing Zhong, Zi-Xing Zhong, Liang-Xing Fang, Liang-Xing Fang, Wei-Na Ni, Wei-Na Ni, Min-Ge Wang, Min-Ge Wang, Xi-Ran Wang, Xi-Ran Wang, Ya-Hong Liu, Ya-Hong Liu, Ya-Hong Liu, Xiao-Ping Liao, Xiao-Ping Liao, Xiao-Ping Liao, Jian Sun, Jian Sun, Jian Sun   +26 more
doaj   +1 more source

Rational Design of Fluorescent/Colorimetric Chemosensors for Detecting Transition Metal Ions by Varying Functional Groups

Inorganics, 2022
In recent decades, concerns about increasing biological and environmental contamination have necessitated the development of chemosensors with high selectivity, sensitivity, and cost-effectiveness. In principle, the sensing performance can be affected by
Jong-Kwon Park, Junhyeop Shin, Seohyeon Jang, Myeong-Lok Seol, Jihyeon Kang, Seyoung Choi, Hojong Eom, Ohhyun Kwon, Soomin Park, Dong-Youn Noh, Inho Nam   +10 more
doaj   +1 more source

A Simple and Label-Free Detection of As³⁺ using 3-nitro-L-tyrosine as an As³⁺-chelating Ligand

Sensors, 2019
A simple and rapid As3+ detection method using 3-nitro-L-tyrosine (N-Tyr) is reported. We discovered the specific property of N-Tyr, which specifically chelates As3+.
Jin-Ho Park, Gyuho Yeom, Donggu Hong, Eun-Jung Jo, Chin-Ju Park, Min-Gon Kim   +5 more
doaj   +1 more source

Glyconanoparticles for colorimetric bioassays [PDF]

The Analyst, 2015
This tutorial review focusses on the design and application of glyconanoparticles for the colorimetric detection of lectins, toxins and viruses.
Marín, María J., Schofield, Claire L., Field, Robert A., Russell, David A.   +3 more
openaire   +4 more sources

Designing an immunosensor for detection of Brucella abortus based on coloured silica nanoparticles

Artificial Cells, Nanomedicine, and Biotechnology, 2019
Brucellosis has always been a threat to the health and economics of societies. We report a new colorimetric immunoassay based on colored silica nanoparticles for detection of Brucella abortus.
Arash Shams, Bahareh Rahimian Zarif, Mojtaba Salouti, Reza Shapouri, Sako Mirzaii   +4 more
doaj   +1 more source

Visual/Photoelectrochemical Off-On Sensor Based on Cu/Mn Double-Doped CeO₂ and Branched Sheet Embedded Cu₂O/CuO Nanocubes

Biosensors, 2023
An integrated dual-signal bioassay was devised to fulfil thrombin (TB) ultrasensitive detection by integrating visualization with the photoelectrochemical technique based on G-quadruplex/hemin.
Huihui Shi, Yanfei Che, Yumeng Rong, Jiajun Wang, Yanhu Wang, Jinghua Yu, Yan Zhang   +6 more
doaj   +1 more source

An Origami Paper-Based Device Printed with DNAzyme-Containing DNA Superstructures for Escherichia coli Detection

Micromachines, 2019
Rapid detection of pathogenic bacteria is extremely important for public health and safety. Here, we describe for the first time an integrated origami paper-based analytical device (PAD) incorporating cell lysis, molecular recognition, amplification and ...
Yating Sun, Yangyang Chang, Qiang Zhang, Meng Liu   +3 more
doaj   +1 more source

Synthesis of novel silica encapsulated spiropyran-based thermochromic materials

Royal Society Open Science, 2022
A series of novel spiropyrans were synthesized through the condensation of substituted 3,3-dimethyl-2-methyleneindoline with different nitro-substituted o-hydroxy aromatic aldehydes. Indoles were initially substituted with a variety of alkanes and esters
Anila Iqbal, Ghazala Iqbal, Muhammad Naveed Umar, Haroon ur Rashid, Sher Wali Khan   +4 more
doaj   +1 more source

Noble Metal Nanoparticles-Based Colorimetric Biosensor for Visual Quantification: A Mini Review

Chemosensors, 2019
Nobel metal can be used to form a category of nanoparticles, termed noble metal nanoparticles (NMNPs), which are inert (resistant to oxidation/corrosion) and have unique physical and optical properties.
Lu Yu, Na Li
doaj   +1 more source

Paper-Based Vapor Detection of Formaldehyde: Colorimetric Sensing with High Sensitivity

Chemosensors, 2021
We report on a novel colorimetric sensor system for highly sensitive detection of formaldehyde (FA) in the gas phase. The sensor is constructed with paper towel as a substrate coated with the sulfuric acid salt of hydroxylamine ((NH2OH)2·H2SO4) together ...
Chenglong Liao, Miao Zhang, Nan Gao, Qingyun Tian, Jiangfan Shi, Shuai Chen, Chuanyi Wang, Ling Zang   +7 more
doaj   +1 more source