Functionalization of carbon nanotubes by different biomolecules for stable dispersion in water
| Autor: | O. M. Burlaka, Ya. V. Pirko, O. F. Kolomys, P. S. Smertenko, V. O. Glazunova, T. E. Konstantinova, A. I. Yemets, Ya. B. Blume |
|---|---|
| Jazyk: | ruština |
| Rok vydání: | 2015 |
| Předmět: |
Physics::Biological Physics
Quantitative Biology::Biomolecules Condensed Matter::Materials Science одношарові та багатошарові вуглецеві нанотрубки нековалентна функціо- налізація молекули біологічного похо дження однослойные и многослой- ные углеродные нанотрубки нековалентная функционализация молекулы биологическо- го происхождения |
| Zdroj: | Biotechnologia Acta. |
| ISSN: | 2410-776X 2410-7751 |
| Popis: | To select the effective methods for functionalizing carbon nanotubes and to compare the ability of a number of biological molecules (plasmid DNA, ATP, mix of deoxyribonucleoside triphosphates, bovine serum albumin, compounds of vitreous humor extract and sodium humate) to interact non-covalently with carbon nanotubes and mediate their dispersion in an aqueous medium was the aim of the work. Properties of carbon nanotubes-biomolecules conjugates were characterized using ultraviolet, visible and near infrared spectroscopy, Raman spectroscopy, transmission electron and atomic force microscopy. Formation of stable aqueous polydisperse colloidal systems of single-walled and multi-walled noncovalently functionalized carbon nanotubes was shown. The appearance of extended functionalization coating consisting of biomolecules on the surface of carbon nanotubes was demonstrated. Changes in morphology and structure of carbon nanotubes, namely shortening and the appearance of defects in sp2- hybridized surface caused by functionalization were revealed. As a result, the range of molecules of biological origin suitable for noncovalent functionalization of carbon nanotubes was chosen, with correspondence to the specific use in plant biotechnology and the properties of formed conjugates were characterized. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|