Pravena Ramachandran

ORCID: 0000-0003-3307-6215
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About
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Research Areas
  • Carbon and Quantum Dots Applications
  • Nanocluster Synthesis and Applications
  • Advanced biosensing and bioanalysis techniques
  • Nanoplatforms for cancer theranostics
  • Graphene and Nanomaterials Applications
  • Mercury impact and mitigation studies
  • Advanced Photocatalysis Techniques
  • Photodynamic Therapy Research Studies
  • Electrochemical sensors and biosensors
  • Advanced Nanomaterials in Catalysis
  • Nanoparticles: synthesis and applications

Universiti Sains Malaysia
2020-2022

Hospital Universiti Sains Malaysia
2020

Titanium dioxide nanoparticles (TiO2 NPs) have attracted tremendous interest owing to their unique physicochemical properties. However, the cytotoxic effect of TiO2 NPs remains an obstacle for wide-scale applications, particularly in drug delivery systems and cancer therapies. In this study, more biocompatible nitrogen-doped graphene quantum dots (N-GQDs) were successfully incorporated onto surface resulting a N-GQDs/TiO2 nanocomposites (NCs). The effects nanocomposite on viability breast...

10.1039/d0ra02907f article EN cc-by-nc RSC Advances 2020-01-01

Blue emissive N-doped carbon quantum dots (N-CQDs) were prepared through a convenient and sustainable microwave synthesis method using citric acid monohydrate (CA) urea as nitrogen sources, respectively, with an optimum molar ratio of 1:3 (CA:Urea). The surface functional groups, morphology, hydrodynamic characteristics N-CQDs analysed Fourier-transform infrared (FTIR) spectroscopy, high-resolution transmission electron microscopy (HRTEM) dynamic light scattering (DLS). as-synthesised yield...

10.17576/jsm-2022-5104-20 article EN Sains Malaysiana 2022-04-29

Breast cancer is the most common prevalent in women, and second main cause of death after lung cancer. Among emerging therapy methods, photodynamic (PDT) with titanium dioxide nanoparticles (TiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> NPs) as photosensitizing agent has gained great interest due to its high efficiency. However, application for PDT limited wide bandgap (~3.2eV), which can only be excited by ultraviolet irradiation....

10.1109/nap51477.2020.9309691 article EN 2022 IEEE 12th International Conference Nanomaterials: Applications &amp; Properties (NAP) 2020-11-09
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