Effect of Surface Chemical Modification on the Self Assembly of Metal Nanoparticles | ||||
| Egyptian Journal of Chemistry | ||||
| Article 66, Volume 65, Issue 1, January 2022, Page 685-689 PDF (457.59 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2021.85558.4160 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Mona Samir 1; Dina Salah  2; Shafei Donia3; Amal Kasry4
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| 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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