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selenium-pyridoxine
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Spectroscopic Study and Characterizing of Selenium Dioxide Complex with Pyridoxine(PN-Se):Interaction Between (PN-Se)and Bovine Serum Albumin
, M.Sc. Thesis Sharif University of Technology ; Mohamadi Boghaei, Davar (Supervisor)
Abstract
Temporary existence of some molecules like medicines in body and also existence of diagnostic agents in biological systems and study of the interactions of biomolecules with these agents is a matter of interest. It also may have an important role in design and synthesis of new drugs. Serum Albumin is the most abundant protein in circulation system in the body. So far, many studies about the interaction of this protein with different compounds have been undertaken. The aim of this paper was to synthesize selenium complex and analyze its potential biochemical activity in vitro. The concrete work falls into two parts:(1) to synthesize the selenium-pyridoxine compound (PNSe) (2) to probe into...
Investigation on the Ability of Pseudomonas Putida Bacterium for Biosorption of Se(IV) from the Aqueous Solutions
, M.Sc. Thesis Sharif University of Technology ; Outokesh, Mohammad (Supervisor) ; Keshtkar, Alireza (Supervisor) ; Sohbatzadeh, Hozhabr (Co-Supervisor)
Abstract
In this study, biosorption of selenium by Pseudomonas putida bacteria was investigated in both single and binary uptake systems. Bacteria cells were immobilized in the chitosan beads, to study impact of microorganism entrapment on the sorption capacity of the fabricated adsorbent. Uptake capacity increased by the entrapped bacterial weight percent up to 20 wt. %; but thereafter, sorption capacity gradually leveled off with an increase in the loading percentage of the bacterial cells.The effects of the three process variables including pH (2-6), biomass dosage (0.5-2.5 g/L) and initial concentration of selenium (50-250 mg/L) on the uptake performance of adsorbent were investigated, and...