Effect of Surface Chemical Modification on the Self Assembly of Metal Nanoparticles | ||
| Egyptian Journal of Chemistry | ||
| Article 66, Volume 65, Issue 1, January 2022, Pages 685-689 PDF (457.59 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2021.85558.4160 | ||
| Authors | ||
| Mona Samir1; Dina Salah* 2; Shafei Donia3; Amal Kasry4 | ||
| 1nano centre BUE, Egypt | ||
| 2biophysics group, faculty of science, Ain shams university | ||
| 3Banha university | ||
| 4Nanocneter, BUE | ||
| Abstract | ||
| We report the self-assembly of a monolayer of gold nanoparticles (Au-NPs) on unmodified glass and on functionalized glass substrates with 3-aminopropyltriethoxysilane under different temperatures. The interaction between Au-NPs and APTES molecules on the glass substrates was affected by the role of APTES molecules on the glass substrates. The stability of the monolayers was carefully studied by performing a series of characterizations such as UV-Vis-NIR spectroscopy, Scanning electron microscopy (SEM). The self-assembled Au-NPs monolayers show high stability and homogenous distribution. The results of this study are important biosensing applications based on surface plasmon resonance or surface-enhanced Raman spectroscopy, where the detected signals can be adequately enhanced. | ||
| Keywords | ||
| Self-assembly; Gold-Nanoparticles; Surface plasmon resonance (SPR) | ||
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