Results 21 to 30 of about 430,572 (307)

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

open access: yesBiosensors, 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   +6 more
doaj   +1 more source

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

open access: yesMicromachines, 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   +3 more
doaj   +1 more source

Synthesis of novel silica encapsulated spiropyran-based thermochromic materials

open access: yesRoyal 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   +4 more
doaj   +1 more source

Comparing the Influence of the Drop Fill and Overflow Rinsing on the Reactive Dyeing Process in a Textile Dye House [PDF]

open access: yes, 2018
Drop/fill rinsing method was used for reducing the high water consumption of overflow rinsing process in textile dye house. However, it is not known whether this drop/fill method has adverse effects on the final fabric properties or not.
Cörekcioǧlu, M.   +4 more
core   +1 more source

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

open access: yesChemosensors, 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

Fabrication and optimisation of a fused filament 3D-printed microfluidic platform [PDF]

open access: yes, 2017
A 3D-printed microfluidic device was designed and manufactured using a low cost ($2000) consumer grade fusion deposition modelling (FDM) 3D printer.
James, Stephen W.   +3 more
core   +1 more source

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

open access: yesChemosensors, 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   +7 more
doaj   +1 more source

Simplified three-dimensional tissue clearing and incorporation of colorimetric phenotyping. [PDF]

open access: yes, 2016
Tissue clearing methods promise to provide exquisite three-dimensional imaging information; however, there is a need for simplified methods for lower resource settings and for non-fluorescence based phenotyping to enable light microscopic imaging ...
Chen, Harrison   +12 more
core   +2 more sources

Evaluation of A Simple DNA Extraction Method and Its Combination with Loop-Mediated Isothermal Amplification Assays for Rapid Plasmodium knowlesi Diagnosis

open access: yesTropical Medicine and Infectious Disease, 2023
The initial and vital stage in the diagnosis of malaria involves extracting DNA. The efficiency of malaria testing is restricted by the multiple steps involved in commercial DNA extraction kits.
Meng-Yee Lai   +4 more
doaj   +1 more source

Nanomolecular detection of human influenza virus type A using reverse transcription loop-mediated isothermal amplification assisted with rod-shaped gold nanoparticles [PDF]

open access: yes, 2014
Reverse transcription loop-mediated isothermal amplification (RT-LAMP) and rod-shaped gold nanoparticles (gold nanorods; GNRs) were employed for nanomolecular detection of human influenza virus type A RNA.
Gill, P.   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy