Letter: concentration of protein solutions.

Determination of Protein Concentration Using Bradford Microplate Protein Quantification Assay

Background: Bradford protein assay is popular due to its ease of performance and relative sensitivity. Many researchers and laboratories in Iran use standard assay of Bradford by cuvette. No commercial kit was available for Bradford microplate assay in Iran. Meanwhile, imported Bradford commercial kits are very expensive and have a long delivery time in Iran. Till now no study or document on Br...

Analysis of Protein Concentration Based on Photonic Crystal Ring Resonator

In this paper, homogeneous, wavelength shift biosensor is designed for sensing the protein concentration using two dimensional Photonic Crystal Ring Resonator (PCRR). The sensor is designed to monitor the protein concentration from 0% to 100%. The proposed sensor is composed of periodic Si rods embedded in an air host with a circular PCRR that is placed between the inline quasi waveguides. It i...

Concentration of dilute haemoglobin solutions with Sephadex.

Sephadex provides a rapid and efficient means of concentrating haemoglobin solutions without significantly altering the original pH or causing denaturation of the protein. Sephadex consists of small grains of a cross-linked polysaccharide (dextran) which is hydrophilic and has polar properties due to a high content of hydroxyl groups. The degree of cross-linkage determines the porosity, with th...

Temperature-concentration diagram of polymer solutions

Modeling of Nanofiltration of Low Concentration Pb(II) Aqueous Solutions Using a Coupled Concentration Polarization and Pore Flow Model

In this paper, the performance of nanofiltration membrane process in removing Pb(II) from aqueous solution was modeled by the pore flow-concentration polarization model. The model was fabricated based on the simultaneous resolving of Extended Nernst–Planck equation(ENP), film theory, and osmotic pressure model. The effects of various operational parameters such as the applied pressure, feed con...