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Distinct optical response of colloidal gold-cinnamon nanocomposites: Role of pH sensitization

Salim, A. A. and Ghoshal, S. K. and Danmallam, I. M. and Sazali, E. S. and Krishnan, G. and Aziz, M. S. and Bakhtiar, H. (2021) Distinct optical response of colloidal gold-cinnamon nanocomposites: Role of pH sensitization. In: International Laser Technology and Optics Symposium in Conjunction with Photonics Meeting 2020, ILATOSPM 2020, 22 - 23 October 2020, Johor, Malaysia.

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Official URL: http://dx.doi.org/10.1088/1742-6596/1892/1/012039


Nanocomposites (NCPs) with excellent physical, chemical and optical properties have been broadly used for commercial products and industrial applications. Based on these features of the NCPs, we prepared colloidal gold (Au) and organic cinnamon (Cin) NCPs by laser irradiated Au and Cin targets separately immersed in glass container fulfilled with different pH solutions (5.0 to 8.0). A Q-switched pulse laser ablation in liquid (PLAL) technique was employed to customize morphology, structural and optical characteristics of these grown nanoparticles inside various pH solutions at room temperature. Colloidal solution of gold-cinnamon nanocomposites (Au-Cin NCPs) was characterized via Transmission electron microscopy (TEM), Ultraviolet-visible (UV-Vis) spectrometer and CIE 1931 chromaticity diagram. TEM image and SAED patters revealed spherical shaped Au-Cin NCPs with a particle diameters of 5.19 1.23 nm and a nanocrystalline face centred cubic (FCC) nucleation. These plasmonic Au-Cin NCPs very strong UV-Vis absorbance bands at (270 nm and 522 nm) and CIE color coordinate (color temperature of 6437.001 K and color purity of 11.9130 %). It is established that the PLAL made-up Au-embedded Cin NCPs may be useful for the formulation of nanobiomedicine drugs.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Nanocomposites (NCPs), colloidal gold (Au)
Subjects:Q Science > QC Physics
ID Code:94302
Deposited By: Widya Wahid
Deposited On:31 Mar 2022 23:14
Last Modified:31 Mar 2022 23:14

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