Adsorption of amino acids on carbon nanoparticles of different manufacturers
Abstract
Сarbonnanoparticles have rapidly become one of the most widely studied nanomaterials, primarily
because their unique physicochemical properties and wide-rangingapplications in molecular electronics, optoelectronics,
drug delivery, and chemical and biological sensors, end sorption technologies. With regard to
biomedical applications of CNTs, the most important prerequisite is the development of methods to immobilize
biomolecules on CNTs. The adsorption and functionalization of biological molecules on CNTs are common
way to realize immobilization of biological molecules. So, the understanding of the interaction mechanism
between CNTs and biological molecules is mandatory for safe using of CNTs in biological applications.
Amino acids are an elementary unit for composing biomolecules and can also reflect the common chemical
properties of complicated biomolecules. So, the interaction between CNTs and. amino acidsis very important
for understanding the interaction mechanism between CNTs and biomolecules.
In this article, the adsorption isotherms ofl-amino acids (lysine, arginine) from aqueous solutions by
carbon nanoparticles were constructed. It was found that arginine adsorption by fullerene C60 and CNT
MKNanoP5000 is more effective than lysine adsorption. For the CNT MKNanoS1 and CNTs DEALTOM
adsorption of the lysineis more efficient then arginine one. Adsorption isotherms were described by the equations
of Langmuir and Freundlich.
Downloads
References
2. Che J., Cagin T., Goddard W.A., Nanotechnology, 1999, Vol. 10, pp. 263-268.
3. Stewart J.J.P., J. Comp. Chem., 1989, Vol. 10, pp. 209-220.
4. Jorgensen W.L., Maxwell D.S., J. Am. Chem. Soc., 1996, Vol. 117, pp. 112-115.
