نتایج جستجو برای: non enzymatic sensors

تعداد نتایج: 1450293  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
Lin Wang Nina M Goodey Stephen J Benkovic Amnon Kohen

One of the most intriguing questions in modern enzymology is whether enzyme dynamics evolved to enhance the catalyzed chemical transformation. In this study, dihydrofolate reductase, a small monomeric protein that catalyzes a single C-H-C transfer, is used as a model system to address this question. Experimental and computational studies have proposed a dynamic network that includes two residue...

ذوالفقارلو, چنگیز, زارع مایوان, حسن,

Heavy metals reduce the plant growth and adversely affect plant performance potential. Heavy metals also induce the formation of reactive oxygen species leading to cell damage. Plants deal with heavy metal stress by activating enzymatic and non-enzymatic antioxidant systems such as Superoxide Dismutase which converts superoxide anion to hydrogen peroxide. Then Peroxidase and Catalase convert hy...

Objectives: To evaluate the reliability of head and trunk acceleration measured by MTx sensors during walking on Level and Irregular surfaces and to compare the differences between healthy young and old adults. Methods: Participants were 20 young female university students and 20 non-faller elderly women in Iran, 2013. Two MTX sensors were used to measure head and trunk accelerations in the ...

Journal: :applied biotechnology reports 0
morteza mirzaei 1- applied biotechnology research center, baqiyatallah university of medical sciences, tehran, iran. 2- department of biology, faculty of sciences, university of guilan, university campus 2, rasht, iran. sina azami 1- applied biotechnology research center, baqiyatallah university of medical sciences, tehran, iran. 2- molecular medicine department, biotechnology research center, pasteur institute of iran, tehran, iran. reyhaneh sariri 1- department of biology, faculty of sciences, university of guilan, university campus 2, rasht, iran. ali mohammad latifi 1- applied biotechnology research center, baqiyatallah university of medical sciences, tehran, iran

organophosphorus compounds are highly toxic chemicals that have application in production of warfare agents and agricultural pesticides. detoxification of areas that have been exposed to these types of materials is of vital importance and several approaches have been used for this purpose. biodegradation of organophosphates is one of these approaches that is in the center of attention due to it...

Journal: :Physical review research 2022

We investigate in the framework of quantum noise theory how striking boundary-sensitivity recently discovered context non-Hermitian (NH) topological phases may be harnessed to devise novel sensors. Specifically, we study a quantum-optical setting coupled modes arranged an array with broken ring geometry that would realize NH phase classical limit. Using methods from quantum-information Gaussian...

Journal: :Indian journal of experimental biology 2003
J Karthikeyan P Rani

Piper species, commonly used in diet and traditional medicine were assessed for their antioxidant potential. Catalase activity was predominated in Piper longum, followed by Piper cubeba, green pepper, Piper brachystachyum and Piper nigrum. P. nigrum was richest in glutathione peroxidase and glucose-6-phosphate dehydrogenase, green pepper was richest in peroxidase and vitamin C while vitamin E w...

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