Results 41 to 50 of about 219,483 (269)
Colorimetric determination of the fluoroquinolones [PDF]
Journal of Antimicrobial Chemotherapy, 1997 Ciprofloxacin, ofloxacin and norfloxacin formed an amber coloured complex with iron(III) nitrate nonahydrate. The complex, which formed instantaneously at room temperature, was stable. The solutions of the complex obeyed Beer's law at 370 nm, the wavelength of maximum absorption of radiation (lambda[max]).
C J, Eboka, S O, Aigbavboa, J O, Akerele
openaire +2 more sources
In silico and in vitro exploration of a tyrosinase for biocatalytic production of catechols
FEBS Open Bio, EarlyView.Tyrosinase from Ralstonia pseudosolanacearum is a promising biocatalyst for producing valuable catechols from monophenol substrates. This tyrosinase is uniquely suited to this due to its high monophenolase : diphenolase ratio. We combined in silico docking and in vivo kinetic characterisation of this tyrosinase with 11 industrially relevant monophenols,
James Britton +6 more
wiley +1 more source
Sensors, 2023 The development of effective methods for dopamine detection is critical. In this study, a homogeneous colorimetric strategy for the detection of dopamine based on a copper sulfide and Prussian blue/platinum (CuS@PB/Pt) composite was developed.
Di Yang +4 more
doaj +1 more source
ALDOA Promotes Glycolysis and NLRP3/GSDMD Pyroptosis to Accelerate ALS Progression
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Amyotrophic lateral sclerosis (ALS) is characterized by progressive motor neuron degeneration. Glycolytic dysregulation is implicated in disease progression, yet the underlying mechanisms remain unclear. This study investigates how Aldolase A (ALDOA) drives ALS progression through glycolysis‐mediated motor neuron pyroptosis.
Kaixin Yan +9 more
wiley +1 more source
Based on Unmodified Aptamer-Gold Nanoparticles Colorimetric Detection of Dexamethasone in Food
Biosensors, 2022 Residue and illegal addition of Dexamethasone (DEX) in food has received widespread attention over the past few decades. Long-term intake of DEX will have a strong endocrine-disrupting effect, and there is an urgent need to develop highly sensitive and ...
Yadi Qin +3 more
doaj +1 more source
Arthritis Care &Research, EarlyView.Objective To investigate the association between rheumatoid arthritis (RA) and coronary artery calcium (CAC) prevalence, incidence, and progression over four years in adults without prior cardiovascular disease. Methods A case‐cohort study within the Brazilian Longitudinal Study of Adult Health (ELSA‐Brasil) included 585 participants (86 patients with ...
Patrícia Fonseca Estrada +7 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Geometrical modifications on nitrocellulose membranes can result in observable differences in signal intensity relative to a reference membrane (top and bottom left). Using two reference experiments, we have developed a theoretical model that can reproduce the experimentally observed flow changes and provide information on membrane parameters, e.g ...
Maria Dimaki +2 more
wiley +1 more source
Can an abts antioxidant test be performed without a spectrophotometer?
Cumhuriyet Science Journal, 2020 ABTS• +(2,2-azinobis- (3-ethylbenzothiazoline-6-sulphonic acid)) radical scavenging assay is widely used to determine the antioxidant activity of natural and synthetic substances.
Nesibe Arslan Burnaz, Zeynep Akar
doaj +1 more source
Colorimetric determination of maridomycin. [PDF]
Agricultural and Biological Chemistry, 1979 A new, rapid and sensitive method for the quantitative determination of maridomycin (MDM) is proposed. The assay method is based on the reaction of the epoxy group of maridomycin with picric acid in ethyl acetate. This reaction product has absorption maxima at 415 and 475~480 nm in alkali.
UCHIDA, Minoru +3 more
openaire +1 more source
From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics
Advanced Functional Materials, EarlyView.We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou +3 more
wiley +1 more source