Results 21 to 30 of about 27,101 (268)

Determination of Hydroquinone Dioxygenase Activity

open access: yesBio-Protocol, 2015
We recently demonstrated the presence of a quinone detoxification pathway present in Firmicutes. It is based on two enzyme activities, namely a hydroquinone dioxygenase, YaiA, described here, and a hydroquinone reductase, YaiB, described in a separate ...
Stefano Mancini, Marc Solioz
doaj   +1 more source

Optimization of Flow Injection (FI) – Spectrophotometry for Hydroquinone Analysis [PDF]

open access: yesJournal of Pure and Applied Chemistry Research, 2019
Hydroquinone is one of the phenolic compounds used in various cosmetic products for skin lightening as it can inhibit tyrosinase enzyme in producing melanin.
Muhammad Iqbal Fahmi   +3 more
doaj   +1 more source

A Colorimetric Method to Measure the Amount of Hydroquinone in Liposomal Formulations [PDF]

open access: yesTrends in Pharmaceutical Sciences, 2019
A method of determination of concentration of solute depended to its chemical properties, degree of dilution and matrix that takes it. Formulation of liposomal hydroquinone, a drug delivery system, is developed to increase efficacy treatment.
rabea khoshneviszadeh   +2 more
doaj   +1 more source

Using Poly-L-Histidine Modified Glassy Carbon Electrode to Trace Hydroquinone in the Sewage Water

open access: yesInternational Journal of Electrochemistry, 2014
A sensitive voltammetric method for trace measurements of hydroquinone in the sewage water is described. The poly-L-histidine is prepared to modify the glassy carbon electrode in order to improve the electrochemical catalysis of interesting substances ...
Bin Wang, Jun Steed Huang
doaj   +1 more source

Virtual Screening of Selected Natural Products as Human Tyrosinase-Related Protein 1 Blockers

open access: yesJournal of Nigerian Society of Physical Sciences, 2021
Many researchers have widely explored the need to replace the harmful compound hydroquinone in skin-lightening creams with more skin-friendly compounds that can give similar results.
Chidi Duru   +2 more
doaj   +1 more source

Mechanistic aspects of the tyrosinase oxidation of hydroquinone

open access: yes, 2014
Contradictory reports on the behaviour of hydroquinone as a tyrosinase substrate are reconciled in terms of the ability of the initially formed ortho-quinone to tautomerise to the thermodynamically more stable para-quinone isomer. Oxidation of phenols by

core   +1 more source

Electrochemical Initiation of Nucleophilic Substitution of Hydroquinone with 4, 6-Dimethylpyrimidine-2-thiol

open access: yesInternational Journal of Electrochemical Science, 2014
The electrochemical synthesis of (2,6-bis(4,6-dimethylpyrimidin-2-ylthio)benzene-1,4-diol(6a),3,5-bis (4,6-dimethylpyrimidin-2-ylthio)-2-methylbenzene-1,4-diol (6b), and 3,5-bis (4,6-dimethylpyrimidin- 2-ylthio)-2-methoxybenzene-1,4-diol (6c) by anodic ...
Zia Ul Haq Khan   +6 more
doaj   +1 more source

Resvega Alleviates Hydroquinone-Induced Oxidative Stress in ARPE-19 Cells [PDF]

open access: yes, 2020
Retinal pigment epithelial (RPE) cells maintain homeostasis at the retina and they are under continuous oxidative stress. Cigarette smoke is a prominent environmental risk factor for age-related macular degeneration (AMD), which further increases the ...
Mysore, Yashavanthi   +13 more
core   +2 more sources

Effects of Skin Lightening Cream Agents – Hydroquinone and Kojic Acid, on the Skin of Adult Female Experimental Rats

open access: yesClinical, Cosmetic and Investigational Dermatology, 2020
Joshua Oladele Owolabi,1,2 Oluseyi Sunday Fabiyi,1 Lola Adeola Adelakin,1 Miriammillicent Chinenyenwa Ekwerike1 1Department of Anatomy, Ben Carson School of Medicine, Babcock University, Ilishan-Remo, Nigeria; 2Department of Anatomy, University of Global
Owolabi JO   +3 more
doaj  

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

open access: yesAdvanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella   +3 more
wiley   +1 more source

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