Results 31 to 40 of about 724,754 (316)

Phenol degradation using 20, 300 and 520 kHz ultrasonic reactors with hydrogen peroxide, ozone and zero valent metals [PDF]

, 2009
The extent of phenol degradation by the advanced oxidation process in the presence of zero valent iron (ZVI) and zero valent copper (ZVC) was studied using 20, 300 and 520 kHz ultrasonic (US) reactors.
Bremner, David H., Chand, Rashmi, Gogate, Parag R., Ince, Nilsun H.   +3 more
core   +3 more sources

Comparative Evaluation of Effectiveness of 35% and 20% Concentration of Hydrogen Peroxide Alone and in Combination with Pomegranate Extract on Human Enamel Used for Tooth Bleaching – An Invitro Study

Journal of Pharmacy and Bioallied Sciences
Aim: To evaluate the color change in human enamel bleached with two concentrations of hydrogen peroxide (35% and 20%) alone and in combination with pomegranate extract using a reflectance spectrophotometer.
Pradnya Nagmode, Vaishnavi Deshmukh, Sathish Abraham, Nitin Lokhande, Kshitija Diggikar, Gurudeo Chavhan   +5 more
doaj   +1 more source

Advanced Fenton processing of aqueous phenol solutions:a continuous system study including sonication effects [PDF]

, 2008
Our previous report based on a batch reactor system for the Advanced Fenton Process (AFP) showed that pH, hydrogen peroxide and the organic substances treated are among the most important factors affecting the oxidation efficiency.
Bremner, D. H., Burgess, A. E., Namkung, K. C., Staines, H.   +3 more
core   +3 more sources

Quantifying hydrogen peroxide in iron-containing solutions using leuco crystal violet

Geochemical Transactions, 2005
Hydrogen peroxide is present in many natural waters and wastewaters. In the presence of Fe(II), this species decomposes to form hydroxyl radicals, that are extremely reactive.
Schoonen Martin A, Pak Aimee, Strongin Daniel, Cohn Corey A   +3 more
doaj   +1 more source

Persister Cell Formation and Elevated lsrA and lsrC Gene Expression upon Hydrogen Peroxide Exposure in a Periodontal Pathogen Aggregatibacter actinomycetemcomitans

Microorganisms, 2023
The effect of hydrogen peroxide, an antiseptic dental treatment, on Aggregatibacter actinomycetemcomitans, the main causative agent of localized invasive periodontitis, was investigated.
Yohei Nakamura, Koji Watanabe, Yoshie Yoshioka, Wataru Ariyoshi, Ryota Yamasaki   +4 more
doaj   +1 more source

Oxidative Stress Detection With Escherichia Coli Harboring A katG\u27::lux Fusion [PDF]

, 1996
A plasmid containing a transcriptional fusion of the Escherichia coli katG promoter to a truncated Vibrio fischeri lux operon (luxCDABE) was constructed. An E.
Belkin, S., LaRossa, R. A., Smulski, D. R., Van Dyk, T. K., Vollmer, Amy Cheng   +4 more
core   +2 more sources

Formation of Hydrogen, Oxygen, and Hydrogen Peroxide in Electron Irradiated Crystalline Water Ice

, 2005
Water ice is abundant both astrophysically, for example in molecular clouds, and in planetary systems. The Kuiper belt objects, many satellites of the outer solar system, the nuclei of comets and some planetary rings are all known to be water-rich ...
Averna D., Cooper B. H., David Jewitt, Flower D. R., Gerakines P. A., Gerakines P. A., Hendrix A. R., Hovington P., Pirronello V., Ralf I. Kaiser, Tielens A. G. G. M., Weijun Zheng   +11 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Aetiology and treatment of epidermal depigmentory disorder in humans [PDF]

, 2012
The epidermal depigmentary trigger in humans at post-natal level may occur with the toxification of skin organ with the endogenously produced melanocytotoxic hydrogen peroxide and subsequent formation of hydrogen peroxide- melanolipoprotein conjugate ...
S. S. Sawhney
core   +1 more source

Integrated genomic and proteomic profiling reveals insights into chemoradiation resistance in cervical cancer

Molecular Oncology, EarlyView.
A comprehensive genomic and proteomic analysis of cervical cancer revealed STK11 and STX3 as a potential biomarkers of chemoradiation resistance. Our study demonstrated EGFR as a therapeutic target, paving the way for precision strategies to overcome treatment failure and the DNA repair pathway as a critical mechanism of resistance.
Janani Sambath, Irene A. George, Srikanth S. Manda, Prasanth Ariyannur, Ekta R. Dhawale, Raja Sekhar Kommu, Rajan Datar, Darshana Patil, Vinita Trivedi, Manisha Singh, Kumar Prabhash, Sewanti Limaye, Richa Chauhan, Prashant Kumar   +13 more
wiley   +1 more source