Results 51 to 60 of about 19,766 (199)

A Nano˗Sepiolite Clay Electrochemical Sensor for the Rapid Electro–Catalytic Detection of Hydroquinone in Cosmetic Products

Acta Chimica Slovenica, 2018
In this paper, a simple and sensitive electrochemical nano-sensor was developed for the analysis of hydroquinone based on sepiolite clay modified carbon paste sensor by using differential pulse adsorptive stripping voltammetry and square wave adsorptive ...
Sevda Aydar, Dilek Eskiköy Bayraktepe, Hayati Filik, Zehra Yazan   +3 more
doaj   +1 more source

History of hydroquinone

Indian Journal of Dermatology, Venereology and Leprology, 2022
Pravin Degambar, Banodkar, Kruti Pravin, Banodkar   +1 more
openaire   +2 more sources

Quantification of Homopolymer Impurities in Structured Acrylate Copolymers Produced by High‐Temperature Semi‐Batch Radical Polymerization

Macromolecular Reaction Engineering, EarlyView.
Isobornyl acrylate macromonomer solutions are synthesized via high‐temperature radical polymerization using a starved‐feed semi‐batch operating policy. Through sequential feeding, the macromonomer solution functions as an addition‐fragmentation agent, facilitating the production of blocky and comb acrylate copolymers.
Elizabeth G. Bygott, Amaris J. Wilkins, Daniel C. Kraiter, Robin A. Hutchinson   +3 more
wiley   +1 more source

Diverse reactivity of maleimides in polymer science and beyond

Polymer International, Volume 74, Issue 4, Page 296-306, April 2025.
This mini‐review provides a thorough overview of maleimide chemistry, highlighting its diverse reactivity in polymer and materials science applications. Abstract Maleimides are remarkably versatile functional groups, capable of participating in homo‐ and copolymerizations, Diels–Alder and (photo)cycloadditions, Michael additions, and other reactions ...
Bruce E Kirkpatrick, Kristi S Anseth, Tayler S Hebner   +2 more
wiley   +1 more source

ntimelanogenesis effect of ethyl acetate extract of avocado seeds (Persea americana Mill.) on B16F10 melanoma cells [PDF]

Journal of Pharmacy & Pharmacognosy Research
Context: Hyperpigmentation is frequently associated with ultraviolet radiation exposure. Natural tyrosinase inhibitors, such as catechin from avocado seeds (Persea americana Mill.), are increasingly studied due to their antioxidant and tyrosinase ...
Shalina Sebayang, Raendi Rayendra, Ietje Wientarsih, Bambang Pontjo Priosoeryanto   +3 more
doaj   +1 more source

Design and optoelectronic profiling of a semicrystalline thiophene–phenylene copolymer for advanced organic electronics

Polymer International, EarlyView.
A new semicrystalline copolymer, PTBT‐3OBu, was synthesized. Intramolecular S···O conformational locks induce high backbone planarity, promoting strong interchain coupling and molecular ordering in thin films, seen in an optical red shift. This synergy between planarity and semicrystalline morphology is promising for photovoltaic and electrochromic ...
Sandra Lúcia Nogueira, Silésia de Fátima Curcino da Silva, Giovani Bortolini Oliveira, Bruno Souza Zanatta, Thibaut Jarrosson, Françoise Serein‐Spirau, Alexandre Marletta, Raigna Augusta da Silva   +7 more
wiley   +1 more source

Porous Organic Polymers: From Molecular Design to Scalable Technologies

Small, EarlyView.
This review introduces porous organic polymers (POPs) for a wide range of applications, including energy storage, gas adsorption, catalysts, adsorbents, biomedical applications, sensors, and other exciting fields, and critically analyzes the synthesis and modification, and how structural topology influences the composites' architecture of POPs, along ...
Hossein Mashhadimoslem, Hadi Shayesteh, Simindokht Zarei‐Shokat, Rokhsareh Bakhtiari, Sheyda Abedi‐Banaei, Zahra Sheikhlouiharzand, Parnia Mohebimanesh, Seyed Mohammad Amin Ojagh, Bahareh Bakhtiari, Ali Maleki, Theo G. M. van de Ven, Sohrab Zendehboudi, Ali Elkamel   +12 more
wiley   +1 more source

Comparison of antioxidant activity of extract of Green tea to commercial antioxidants in 2% hydroquinone cream

Journal of Medicinal Plants, 2005
Background: Recently, many researchers have been involved in finding means to prevent or delay deterioration by oxidative reactions in cosmetic preparations.
K Morteza-Semnani, M Saeedi, Z Nozadi
doaj  

Evaluating the efficacy of Terminalia chebula Retz. 5% cream compared to hydroquinone 2% cream in the treatment of melasma [PDF]

Avicenna Journal of Phytomedicine
Objective: Melasma is a multifactorial, chronic, acquired skin disorder of hyperpigmentation. Terminalia chebula Retz. (T. chebula) has shown antioxidant, anti-inflammatory and tyrosinase enzyme inhibitory activities.
Amir Emad Kheirieh, Fariba Sharififar, Mehdi Ansari Dogaheh, Fatemeh Dabaghzadeh, Simin Shamsi Meymandi, Behnoush Bakhshoudeh   +5 more
doaj   +1 more source

From Bonds to Barriers: Amphiphilic Molecules Enable Dual Interfacial and Electrolyte Regulation for Highly Stable Aqueous Zinc‐Ion Batteries

Small, EarlyView.
ABSTRACT The uncontrolled growth of zinc dendrites and severe parasitic side reactions critically impede the practical development of aqueous zinc‐ion batteries (AZIBs), largely due to the high activity of water molecules in aqueous electrolytes.
Min Li, Chao Li, Lei Jiang, Xin Tan, Kwok‐Ho Lam, Qiaoji Zheng, Dunmin Lin   +6 more
wiley   +1 more source