Results 91 to 100 of about 522,116 (371)
Análise multicomponente simultânea por espectrofotometria de absorção molecular UV-VIS
Química Nova, 1999 This review presents the evolution of simultaneous multicomponent analysis by absorption spectrophotometry in the ultraviolet and visual regions in terms of some qualitative and quantitative analysis techniques, otimization methods, as well as ...
Saldanha Teresa Cristina B. +2 more
doaj
Formation of fatty acid esterified vitamin D3 in rat skin by exposure to ultraviolet radiation
Journal of Lipid Research, 1983 The formation of fatty acid esters of vitamin D3 was demonstrated in rat skin exposed to artificial ultraviolet rays by using multi-dimensional high-performance liquid chromatography, ultraviolet spectrophotometry, and gas-liquid chromatography-mass ...
K Takada
doaj +1 more source
Advanced Science, EarlyView.A triple‐mode theranostic platform enables integrated electrochemical, colorimetric, and photothermal detection of bacterial infection. Glucose oxidation triggers H2O2 generation and TMB oxidation to oxTMB, producing color and thermal signals under 808 nm NIR irradiation.
Jing Xu +8 more
wiley +1 more source
Synthesis of Gold Nanoparticles Using Cefopernazone as a Stabilizing Reagent and Its Application
International Journal of Electrochemical Science, 2012 : Synthesis of gold nanoparticles using cefopernazone as a stabilizing reagent for a sensor was proposed. The gold nanoparticles were characterized by scanning electron microscopy, transmission electron microscopy, infrared spectrometry, ultraviolet ...
Xiaomeng Lü +4 more
doaj +1 more source
مجلة العلوم البحتة والتطبيقية, 2020 This study was aimed to determine the nicotine in Libyan smokers and nonsmokers ’urine. Twenty urine samples are collected from smokers and nonsmokers. Each volunteer was required to complete a questionnaire before providing the urine sample. The samples
Galal M. Elmanfe, Suad K. Omar , Ahmad B. Eznien
doaj +1 more source
The Distance to the Large Magellanic Cloud from the Eclipsing Binary HV2274 [PDF]
, 1998 The distance to the Large Magellanic Cloud (LMC) is crucial for the calibration of the Cosmic Distance Scale. We derive a distance to the LMC based on an analysis of ground-based photometry and HST-based spectroscopy and spectrophotometry of the LMC ...
A. Giménez +10 more
core +3 more sources
Advanced Science, EarlyView.Dual priming with minocycline and photodynamic priming reprograms the pancreatic tumor microenvironment to overcome chemoresistance. By suppressing DNA repair enzyme Tdp1, inducing photooxidative damage, and enhancing irinotecan delivery via light‐activated nanoencapsulation, this strategy remodels the tumor microenvironment and drives immune ...
Fernanda V. Cabral +7 more
wiley +1 more source
Advanced Science, EarlyView.A piezocatalytic strategy enables simultaneous wastewater purification and hydrogen generation by harnessing mechanical energy. Complementary piezo‐induced charges are selectively directed toward oxidation and reduction pathways, achieving efficient pollutant degradation and continuous H2 evolution.
Yiqing Wei +8 more
wiley +1 more source
Next MaterialsThis paper investigated the preparation of rare-earth doped alkali borosilicate glass that exhibited high ultraviolet transmittance and excellent photoluminescence properties.
Qimin Liu, Min Qian, Yaosong Huang
doaj +1 more source
The star-formation histories of elliptical galaxies across the fundamental plane [PDF]
, 2006 We present the first results from a study designed to test whether, given high-quality spectrophotometry spanning the mid-UV--optical wavelength regime, it is possible to distinguish the metal content (Z) and star-formation history (sfh) of individual ...
Dunlop, J. S. +5 more
core +2 more sources