Determination of Quinone Reductase Activity
We recently demonstrated the presence of a quinone detoxification pathway present in Firmicutes. It is based on two enzyme activities, namely a quinone reductase, YaiB, described here, and a hydroquinone dioxygenase, YaiA, described in a separate ...
Stefano Mancini, Marc Solioz
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Current clinical use of depigmenting agents
A variety of topical depigmenting agents have been used clinically, with varying degrees of success. To date, the most effective topical treatment is a triple-combination agent containing hydroquinone (HQ), tretinoin, and fluocinolone acetonide. However,
Jung Won Shin, Kyoung Chan Park
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Adsorptive Stripping Voltammetric Determination of Hydroquinone using an Electrochemically Pretreated Glassy Carbon Electrode [PDF]
A simple and efficient adsorptive stripping voltammetric (AdSV) method was developed for the determination of hydroquinone at an electrochemically pretreated glassy carbon (GC) electrode in waste water.
Abdul Niaz1, +4 more
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Single stage surgery for Blepharophimosis syndrome
Purpose: The purpose of this study was to report the functional and cosmetic outcome of single stage surgical procedure for correction of the classic components of Blepharophimosis syndrome.
Kasturi Bhattacharjee +4 more
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Preparation of Poly-N-Methylpyrrole Coated Platinum Modified Electrode in Chloroform in the Presence of Various Supporting Electrolytes and Its Use for the Catalytic Oxidation of Ascorbic Acid and Hydroquinone [PDF]
The electrochemical preparation of poly-N-methylpyrrole (PMPy) coated platinum electrode in chloroform in the presence of tetrabutylammonium Perchlorate, hexafluorophosphate, hydrogensulphate, Periodate and Iodide as supporting electrolytes was performed.
Jahanbakhsh Raoof +2 more
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KINETICS AND MECHANISM OF AERIAL OXIDATION OF HYDROQUINONE IN A DEVELOPER SOLUTION AND DETERMINATION OF DEVELOPER'S HALF-LIFE AT 20°C [PDF]
The aerial oxidation of hydroquinone in a freshly prepared developer solution at 20°C has been studied through the measurement of concentration changes by a spectrophotometric method. The concentration of consumed hydroquinone is directly proportional to
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Analysis of Hydroquinone in Face Whitening Cream by UV-Vis Spectrophotometry and GC-MS Spectrometry
The analytical method to determine the compound content in both food and cosmetic products must be carried out carefully to ensure the validity of the analysis results.
Karnelasatri Karnelasatri +4 more
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Molecular basis of the explosive defence response in the bombardier beetle Brachinus crepitans
Bombardier beetles have evolved a sophisticated and unique chemical defence mechanism involving controlled explosions within their paired defensive glands, producing a hot, benzoquinone-rich defensive spray.
Heiko Vogel +5 more
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Introduction: Melasma is a recurrent, symmetric, and chronic acquired hyperpimentation that presents gray-brown macules and patches with determined margins in areas exposed to light.
M Bahadori +3 more
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