Application of RBS and NRA in the fabrication of carbon based devices
- Alabama A and M Univ., Normal, AL (United States)
- Oak Ridge National Lab., TN (United States)
We have used Nuclear Reaction Analysis (NRA) and Rutherford Backscattering Spectrometry (RBS) as well as resonant backscattering as analytical tools in fabricating carbon based drug delivery bio-implants, electrodes for batteries, and devices to entrap or filter specific toxins. Precursor is resol C{sub 7}H{sub 8}O{sub 2} liquid, which converts to fully cured phenolic resin C{sub 7}H{sub 6}O (sp gr 1.25) on heating at 170 C. This resin further transforms with no change in shape to glassy carbon (sp gr 1.45) on heating to 1000 C. Final product consists of long ribbon-like molecules of sp2 carbon atoms aggregated locally to form subcrystalline domains arranged randomly in space. RBS and NRA were used in measuring the porosity before and after activation, in concentration profiling of stored drugs before and after leaching, in detecting low level light element impurities, and in detecting changes in the structure of the device due to fabrication.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 100319
- Report Number(s):
- CONF-9505122-6; ON: DE95017445; TRN: 95:019498
- Resource Relation:
- Conference: International conference on ion beam analysis, Tempe, AZ (United States), 22-26 May 1995; Other Information: PBD: Jun 1995
- Country of Publication:
- United States
- Language:
- English
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