Gold nanoparticles were successfully deposited onto a poly(tetrafluoroethylene) (PTFE) membrane filter by pulsed 532-nm laser irradiation in a 2-propanol solution containing HAuCl 4. The resulting membrane filters were used as substrates for infrared (IR) absorption spectrometry. A substantial enhancement in the IR spectrum of L-cysteine was observed by using this substrate. The degree of enhancement was roughly twice compared with the case of PTFE membrane filters without gold nanoparticles.
All Science Journal Classification (ASJC) codes
- Analytical Chemistry