pH-Responsive Aggregation States of Chiral Polymerizable Amphiphiles from l-Tyrosine and l-Phenyl Alanine in Water
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Voltammetric Study of Cu(II) in Presence of Aspartic Acid and L-Phenyl Alanine at Different pH Media
The voltammetric study of Cu (II) in presence of aspartic acid (Aa) and L-phenyl alanine (Pa) respectively has been carried out in buffer solution of different pH, scan rate and variation of Aa or Pa concentration. Cu(II) in presence of Aa and Pa has been found to undergo two anodic peaks follows two step two electron transfer anodic reaction. The peak positions of the voltammogram of Cu(II) in...
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1. 72 hour isolated chick hearts show an increase in pulsation rate when placed in M/1000, M/10,000, and M/50,000 l-tyrosine solutions. The optimal effect is seen in M/10,000 and M/50,000 l-tyrosine. 2. All hearts show disturbance of rhythm either in the form of irregular rhythm or heart block. 3. 62 hour isolated chick hearts are not susceptible to l-tyrosine while 96 hour hearts are markedly ...
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B lymphocytes and certain subpopulations of T lymphocytes respond to stimulation with antigen by synthesis and secretion of unique glycoproteins capable of binding the stimulating antigen. In the case of the B cell, these glycoproteins are the classic antibody molecules, which have been well characterized in terms of structure, function, and organization, both at the protein and nucleic acid le...
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An approach to broaden the product range of the ethanologenic, gram-negative bacterium Zymomonas mobilis by means of genetic engineering is presented. Gene alaD for L-alanine dehydrogenase (EC 1.4.1.1.) from Bacillus sphaericus was cloned and introduced into Z. mobilis. Under the control of the strong promoter of the pyruvate decarboxylase (pdc) gene, the enzyme was expressed up to a specific a...
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کاتالیست یک سنتز جدید برای تیواترها توصیف شده است. واکنش الکل ها با آریل، هتروآریل و آلکیل تیو ل ها درحضور 1،3،5- تری آزو- 2،4،6- تری فسفرین-2،2،4،4،6،6 هگزاکلراید ((tapc به عنوان یک کاتالیست موُثر، بازده های خوب تا عالی از تیواترها را حاصل می کند. علاوه براین، واکنش تحت شرایط بدون فلز و بدون حلال پیش می رود، بنابراین یک مکمل جالب برای روش های شناخته شده سنتز تیواترها ارائه می دهد. یک مکانیسم ا...
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ژورنال
عنوان ژورنال: Langmuir
سال: 2013
ISSN: 0743-7463,1520-5827
DOI: 10.1021/la4008922