Laser Intensity of Thermo-Responsive Nanoparticles Size Measurement Using Dynamic Light Scattering

Authors

  • Nur Fathin Amirah Shafie Malaysia-Japan International Institute of Technology, University Teknologi Malaysia, Kuala Lumpur, Malaysia
  • Syazwani Mohd Faizo Malaysia-Japan International Institute of Technology, University Teknologi Malaysia, Kuala Lumpur, Malaysia
  • Roshafima Rasit Ali Malaysia-Japan International Institute of Technology, University Teknologi Malaysia, Kuala Lumpur, Malaysia
  • Mohd Yusof Hamzah Nanotechnology Laboratory, Radiation Processing Technology, Malaysian Nuclear Agency, Selangor, Malaysia
  • Naurah Mat Isa Nanotechnology Laboratory, Radiation Processing Technology, Malaysian Nuclear Agency, Selangor, Malaysia
  • Zatil Izzah Tarmizi Malaysia-Japan International Institute of Technology, University Teknologi Malaysia, Kuala Lumpur, Malaysia
  • Mohd Shahrul Nizam Salleh School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA Cawangan Terengganu, Bukit Besi Campus, 23200 Dungun, Terengganu, Malaysia

DOI:

https://doi.org/10.37934/arfmts.100.2.138145

Keywords:

Thermo-responsive polymer, lower critical solution temperature, dynamic light scattering, scattering intensity

Abstract

Dynamic light scattering (DLS) or photon cross-correlation spectroscopy (PCCS) is a very potent means for analyzing the diffusion behaviour of supramolecules in their solution form. The diffusion coefficient, probed from the scattered light by supramolecules underexposure to incident light, allows the hydrodynamic radii to be calculated. However, the scattering values were recently misled by an unexpected interaction between the incident light and thermo-sensitive nanogels. Hence, in turn, it resulted in a miscalculation of the size of the nanogels by more than 100% of their expected values. The study fulfills a vital knowledge gap by investigating the effects of laser intensity on the size of thermo-sensitive Poly(N-Isopropyl Acrylamide-Vinyl Pyrrolidone-Polyethylene Glycol Diacrylate-(2-(Dimethyl Amino)Ethyl Methacrylate)), Poly(NIPAAM-PVP-PEGDA-DMAEMA) nanogels and subsequent count rates in DLS measurements. The Lower Critical Solution Temperature, LCST phase transition of Poly(NIPAAM-PVP-PEGDA-DMAEMA) nanogel can be observed using the DLS technique. The higher laser intensity was advantageous for measuring at high dilution more vigorously with varying laser intensities. Thus, a sufficient laser intensity should be chosen based on the light scattering characteristics of typical samples.

Author Biographies

Nur Fathin Amirah Shafie, Malaysia-Japan International Institute of Technology, University Teknologi Malaysia, Kuala Lumpur, Malaysia

nurfathinamirahshafie@gmail.com

Syazwani Mohd Faizo, Malaysia-Japan International Institute of Technology, University Teknologi Malaysia, Kuala Lumpur, Malaysia

wanifaizo96@gmail.com

Roshafima Rasit Ali, Malaysia-Japan International Institute of Technology, University Teknologi Malaysia, Kuala Lumpur, Malaysia

roshafima@utm.my

Mohd Yusof Hamzah, Nanotechnology Laboratory, Radiation Processing Technology, Malaysian Nuclear Agency, Selangor, Malaysia

m_yusof@nuclearmalaysia.gov.my

Naurah Mat Isa, Nanotechnology Laboratory, Radiation Processing Technology, Malaysian Nuclear Agency, Selangor, Malaysia

naurah@nuclearmalaysia.gov.my

Zatil Izzah Tarmizi, Malaysia-Japan International Institute of Technology, University Teknologi Malaysia, Kuala Lumpur, Malaysia

zatil.izzah@utm.my

Mohd Shahrul Nizam Salleh, School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA Cawangan Terengganu, Bukit Besi Campus, 23200 Dungun, Terengganu, Malaysia

shahrulnizam@tganu.uitm.edu.my

Downloads

Published

2022-10-23

How to Cite

Shafie, N. F. A., Syazwani Mohd Faizo, Roshafima Rasit Ali, Mohd Yusof Hamzah, Naurah Mat Isa, Zatil Izzah Tarmizi, & Mohd Shahrul Nizam Salleh. (2022). Laser Intensity of Thermo-Responsive Nanoparticles Size Measurement Using Dynamic Light Scattering. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 100(2), 138–145. https://doi.org/10.37934/arfmts.100.2.138145

Issue

Vol. 100 No. 2: December (2022)

Section

Articles

Most read articles by the same author(s)