Results 71 to 80 of about 430,572 (307)
BiosensorsDetecting kidney function biomarkers is critical for the early diagnosis of kidney diseases and monitoring treatment efficacy. In this work, a portable, 3D-printed colorimetric sensor platform was developed to detect key kidney biomarkers: uric acid ...
Sangeeta Palekar +4 more
doaj +1 more source
International Journal of Electrochemical Science, 2016 A simple 4-(furan-2-ylmethyleneamino)-2,3-dimethyl-1-phenyl-1,2-dihydropyrazol-5-one (M1) chemosensor was designed and positively applied for the selective recognition of Zn2+ ions in methanol.
Vinod Kumar Gupta
doaj +1 more source
Rapid, Low Level Determination of Silver(I) in Drinking Water by Colorimetric–solid-phase Extraction [PDF]
, 2003 A rapid, highly sensitive two-step procedure for the trace analysis of silver(I) is described. The method is based on: (1) the solid-phase extraction (SPE) of silver(I) from a water sample onto a disk impregnated with a silver-selective colorimetric ...
Arena, Matteo P. +2 more
core +1 more source
Advanced Functional Materials, EarlyView.This article presents a photo‐responsive nanoparticle platform that precisely triggers copper‐dependent cuproptotic cell death in (drug‐resistant) cancer cells. The system remains stable and inactive in the dark but releases cytotoxic species upon red‐light irradiation, achieving potent activity in drug‐resistant breast cancer cells.
Ricarda Zimmermann +2 more
wiley +1 more source
Microfluidic chip development for an autonomous field deployable water quality analyser [PDF]
, 2010 This work presents the ongoing development of a microfluidic chip for a low cost field deployable phosphate analyser for water. The phosphate analyser is a fully integrated system incorporating fluid handling, microfluidic technology, colorimetric ...
Cleary, John +4 more
core
Direct hemoglobin measurement by monolithically integrated optical beam guidance [PDF]
, 2005 We present a concept for optical beam guidance by total internal reflection (TIR) at V-grooves as retro reflectors which are monolithically integrated on a microfluidic "lab-on-a-disk".
Brefka, T. +8 more
core +1 more source
An Edible H2O2 Biosensor for Gastrointestinal Metabolites and Peroxidase Enzyme Quantification
Advanced Healthcare Materials, EarlyView.We present an edible biosensor for gastric fluid analysis that integrates a caffeic acid–horseradish peroxidase redox system into an edible electrolyte‐gated transistor. The device enables rapid, low‐volume detection of H2O2 and, with minimal modification, metabolites and enzyme activity in simulated gastrointestinal conditions.
Valerio Francesco Annese +10 more
wiley +1 more source
Test strips detect different CO2 concentrations in closed compartments [PDF]
, 1965 Four different test strips, using crystal violet for one pair of strips and basic fuchsin as a dye for the second pair, give unambiguous colorimetric indications of four different concentrations of carbon dioxide in the atmosphere of a closed compartment.
core +1 more source
Advanced Healthcare Materials, EarlyView.Chamber‐specific decellularized extracellular matrices (ECMs) were developed, preserving native proteomic profiles of ventricular and atrial myocardium. These innate biochemical cues differentially modulate cardiomyocyte subtypes to drive engineered heart tissue development and function, highlighting the importance of incorporating regional ECM cues in
Dong Gyu Hwang +7 more
wiley +1 more source
Photometric detection in flow analysis systems using integrated PEDDs [PDF]
, 2005 A novel inexpensive optical-sensing technique has been developed for colorimetric flow analysis. This sensing system employs two LEDs whereby one is used as the light source and the other as a light detector.
Diamond, Dermot +2 more
core +2 more sources