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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Bibliographic Details
Published in:	Adsorption : 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
Language:	English
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