Results 31 to 40 of about 3,143 (183)
Application of cyclic voltammetric technique on dye concentration control in aqueous solutions [PDF]
This communication follows a previous work concerning indirect electrochemical reduction of dyes [1] and its application on dyeing control with sulphur dyes. The study concerns the cathodic peak intensity variation with sulphur dye C.I.
Amorim, M. T. Pessoa de +1 more
core
Color Development and Tribo-charging Characteristics of Leuco Dyes
The color development and tribo-charging characteristics of the leuco dyes were investigated. Seven types of leuco dyes were dissolved into a styrene-acryl copolymer solution to prepare a dye-solution. When a prescribed amount of the t-butyl salicylate-Zn complex (SZC) was added to the dye-solution the solution developed color. The maximum absorbance A
Keiki SUGANAMI +2 more
openaire +2 more sources
Analysis of the Degradation of Thermochromic Sensors in Electrical Devices
This study examines the degradation of microencapsulated leuco thermochromic pigments, both pure and embedded in epoxy, under thermal, cyclic, and QUV aging. UV radiation is the main factor causing irreversible loss of thermochromism due to microcapsule damage and solvent loss, while thermal exposure produces minor effects.
Marina Kauling de Almeida +7 more
wiley +1 more source
The porous HMC selectively captures cationic dyes (MB and MG) from contaminated water, transforming dark, dye‐laden effluent into clean water. ABSTRACT Our investigation explores the exclusion of two health‐risk cationic dyes (e.g., Methylene Blue (MB) and Malachite Green (MG)) using a novel hydrazone‐modified cellulose (HMC) adsorbent synthesized via ...
Yasmeen G. Abou El‐Reash +7 more
wiley +1 more source
DNA sensing by electrocatalysis with hemoglobin [PDF]
Electrocatalysis offers a means of electrochemical signal amplification, yet in DNA-based sensors, electrocatalysis has required high-density DNA films and strict assembly and passivation conditions.
Barton, Jacqueline K. +2 more
core +2 more sources
Recent Advances on Thermochromic Inks for Security Applications
Thermochromic security inks have garnered interest in recent years as security elements for authentication, information encryption, and anti‐counterfeiting. This review outlines different types of thermochromic materials, how they have been developed as functional inks, and how advancements in property enhancement, sustainability, and printing ...
Duarte B. Oliveira +5 more
wiley +1 more source
Structural Modifications of Surfactant-Assisted Alumina and Their Effectiveness for the Removal of Dyes [PDF]
The current study focuses on the development of the modified surface of the alumina by anionic surfactant sodium dodecyl sulfate. The synthesized Surfactant Modified Alumina (SMA) effectively associated with dye molecules and amended their properties ...
Tahir Hajira +4 more
doaj
The Synthesis of Azaperylene-9,10-dicarboximides [PDF]
The syntheses of two azaperylene 9,10-dicarboximides are presented. 1-Aza- and 1,6-diazaperylene 9,10-dicarboximides containing a 2,6-diisopropylphenyl substituent at the N-imide position were synthesized in two steps starting from naphthalene and ...
Andrew, Trisha Lionel +2 more
core +1 more source
The holographic recording performance of the photopolymerizable hybrid sol–gel is enhanced by optimizing photoinitiating systems based on boron dipyrromethene dyes. Two‐ and three‐component type‐II photoinitiating systems are employed, and their photopolymerization efficiency is evaluated through holographic patterning at 532 nm.
Tatsiana Mikulchyk +4 more
wiley +1 more source
ABSTRACT Profluorescent nitroxides (PFNs) have established themselves as powerful tools for monitoring oxidative processes and subcellular redox dynamics by reactive oxygen species (ROS). Their characteristic “off–on” behavior arises from the efficient, proximity‐driven quenching of covalently bound fluorophores by paramagnetic nitroxide radicals ...
Haider N. Sultani +4 more
wiley +1 more source

