Adsorption of Amino Acids onto Diamond for Biomedical Applications Paperback / softback
by Mukhtar Ahmed, Waqar Ahmed, John Byrne
Paperback / softback
Description
A range of DLC, Si-DLC, N-DLC and F-DLC films were prepared using ‎PECVD ‎with various film thicknesses (100-200) nm.
The simplest amino acid ‎‎"Glycine" is used as a model biological compound to ‎investigate surface adsorption ‎phenomena.
Following exposure to solutions ‎containing glycine, surface characteristic has been ‎investigated by various techniques.
XPS analysis showed the appearance of a new ‎peak at 400 eV ‎‎(N1s) and a change in the intensity of the C1s and O1s peaks.
Both ‎Raman and ‎FTIR spectra showed bands related to functional groups ‎of glycine. ‎AFM analysis showed a change in surface roughness of the films with ‎the ratio of ‎rms values increasing following exposure to glycine.
Changes in the ‎surface energy of the films were observed following ‎exposure to glycine with an ‎increase in the surface tension.
Based on the kinetic study, the adsorption ‎process ‎obeyed the pseudo first order rate of reaction, and both ∆G and ∆H results showed that the ‎adsorption is ‎spontaneous and exothermic.
The ‎Freundlich-Langmuir isotherm ‎suggest that the attachment of glycine is non-‎uniform and multilayer. ‎
Information
-
Out of stock
- Format:Paperback / softback
- Pages:296 pages
- Publisher:LAP Lambert Academic Publishing
- Publication Date:11/10/2013
- Category:
- ISBN:9783659473609
Information
-
Out of stock
- Format:Paperback / softback
- Pages:296 pages
- Publisher:LAP Lambert Academic Publishing
- Publication Date:11/10/2013
- Category:
- ISBN:9783659473609
