Results 31 to 40 of about 282,094 (307)

Comparison of chemiluminescence enzyme immunoassay based on magnetic microparticles with traditional colorimetric ELISA for the detection of serum α-fetoprotein

open access: yesJournal of Pharmaceutical Analysis, 2012
A chemiluminescence enzyme immunoassay based on magnetic microparticles (MmPs-CLEIA) was developed to evaluate serum α-fetoprotein (AFP) in parallel with traditional colorimetric enzyme-linked immunosorbent assay (ELISA). A systematic comparison between
Qian-Yun Zhang   +3 more
doaj   +1 more source

Predicting the composition of red wine blends using an array of Multicomponent peptide-based sensors [PDF]

open access: yes, 2015
Differential sensing using synthetic receptors as mimics of the mammalian senses of taste and smell is a powerful approach for the analysis of complex mixtures.
Abdi   +18 more
core   +4 more sources

Colorimetric methods for rapid determination of pyrazinamide resistance

open access: yesInternational Journal of Mycobacteriology, 2020
Background: Because pyrazinamide (PZA) is only effective for Mycobacterium tuberculosis at an acidic pH, susceptibility tests are more difficult to perform than those for other anti-tuberculosis (TB) drugs.
Ahmet Ugur Akbal   +2 more
doaj   +1 more source

A cellulose-based bioassay for the colorimetric detection of pathogen DNA [PDF]

open access: yes, 2014
Cellulose-paper-based colorimetric bioassays may be used at the point of sampling without sophisticated equipment. This study reports the development of a colorimetric bioassay based on cellulose that can detect pathogen DNA.
Goyal, Madhu   +3 more
core   +1 more source

Determination of Creatinine in Human Urine with Flow Injection Tandem Mass Spectrometry [PDF]

open access: yes, 2012
Background/Aims: Excretion of urinary compounds in spot urine is often estimated relative to creatinine. For the growing number of liquid chromatography-tandem mass spectrometry (LC-MS/MS) assays of urine-excreted molecules, a fast and accurate method ...
Koletzko, Berthold   +2 more
core   +1 more source

Citrate and Polyvinylpyrrolidone Stabilized Silver Nanoparticles as Selective Colorimetric Sensor for Aluminum (III) Ions in Real Water Samples [PDF]

open access: yes, 2020
The use of silver nanoparticles stabilized with citrate and polyvinylpyrrolidone as a sensor for aluminum ions determination is proposed in this paper. These non-functionalized and specific nanoparticles provide a highly selective and sensitive detection
López Pérez, Germán   +4 more
core   +1 more source

The Biological Properties and Potential Interacting Proteins of d-Alanyl-d-alanine Ligase A from Mycobacterium tuberculosis

open access: yesMolecules, 2018
(1) Background: d-alanine-d-alanine ligase (DdlA), an effective target for drug development to combat against Mycobacterium tuberculosis (Mtb), which threatens human health globally, supplies a substrate of d-alanyl-d-alanine for peptidoglycan ...
Shufeng Yang   +7 more
doaj   +1 more source

COLORIMETRIC ASSAY OF HEXAMETHYLENETETRAMINE [PDF]

open access: yesBulletin of Pharmaceutical Sciences. Assiut, 1981
Two photometric procedures are described for the determination of hexamethylenetetramine, free and in pharmaceutical preparation. The two methods are based on color formation by the ammonia released after the hydrolysis of hexamethylenetetramine. In the first method sodium-l,2 naphthoquinone-4-sulphonate reagent was added to the hydrolyzed hexamine ...
Aly Taha   +2 more
openaire   +1 more source

Decreased glutathione biosynthesis contributes to EGFR T790M-driven erlotinib resistance in non-small cell lung cancer [PDF]

open access: yes, 2016
Epidermal growth factor receptor (EGFR) inhibitors such as erlotinib are novel effective agents in the treatment of EGFR-driven lung cancer, but their clinical impact is often impaired by acquired drug resistance through the secondary T790M EGFR mutation.
Chater, E   +13 more
core   +2 more sources

Colorimetric biosensors for point-of-care virus detections

open access: yesMaterials Science for Energy Technologies, 2020
Colorimetric biosensors can be used to detect a particular analyte through color changes easily by naked eyes or simple portable optical detectors for quantitative measurement. Thus, it is highly attractive for point-of-care detections of harmful viruses
Victoria Xin Ting Zhao   +4 more
doaj   +1 more source

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