Kinetics of protein adsorption by nanoporous carbons with different pore size

Kinetics of bovine serum albumin and ovalbumin adsorption by nanoporous carbons with different main pore sizes (1.6, 5, 7.8 and 28 nm) was studied. Experimental kinetics curves were well described by multi-exponential equation with different number of exponents (from 1 to 4). Protein adsorption kine...

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Published inAdsorption : journal of the International Adsorption Society Vol. 22; no. 4-6; pp. 541 - 552
Main Authors Puziy, Alexander M., Poddubnaya, Olga I., Derylo-Marczewska, Anna, Marczewski, Adam W., Blachnio, Magdalena, Tsyba, Mykola M., Sapsay, Vitaliy I., Klymchuk, Dmytro O.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.05.2016
Subjects
Chemistry
Chemistry and Materials Science
Engineering Thermodynamics
Heat and Mass Transfer
Industrial Chemistry/Chemical Engineering
Surfaces and Interfaces
Thin Films
Porous structure
Pore size threshold
Templated carbons
Kinetics of adsorption
Protein adsorption
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Summary:Kinetics of bovine serum albumin and ovalbumin adsorption by nanoporous carbons with different main pore sizes (1.6, 5, 7.8 and 28 nm) was studied. Experimental kinetics curves were well described by multi-exponential equation with different number of exponents (from 1 to 4). Protein adsorption kinetics showed significant dependence on pore size of carbonaceous adsorbent. Correlation between pore size distribution and amount of protein adsorbed revealed threshold pore size 7.3 nm for BSA and 6.8 nm for OVA, which are close to hydrodynamic diameter of protein molecules. The fastest and the highest adsorption of proteins were observed in carbons having developed porosity with pore sizes larger than 15 nm.
ISSN:0929-5607
1572-8757
DOI:10.1007/s10450-015-9723-3