Rajesh Ramanathan


Rajesh Ramanathan

Associate Professor (Materials Chemistry and Analytical Chemistry), RMIT University
Co-Leader, NanoBiotechnology Research Laboratory (NBRL) Group, RMIT University
President, Royal Australian Chemical Institute (RACI) Victorian Branch
I am an interdisciplinary scientist, research leader, and innovator with over 10 years of experience in materials science, nanotechnology, nanobiotechnology, and sensor development. I am consistently recognized for my performance excellence, including securing over AUD $4.5 million in research funding, publishing over 70 high-quality research articles, mentoring 12 PhD students and 3 postdocs to completion, and incorporating new digital tools to enhance student learning.

I am passionate about engaging with the media and the community, and I am skilled at translating cutting-edge research into accessible and engaging materials for professional and public audiences. I have been named inventor on over 20 patents, and I have strong research translational experience working with a range of industries on biomedical imaging and sensor development.

I am excited to share my passion for research and innovation and highlight my contribution to the field.


Aptamer-based NanoBioSensors for seafood safety

D. J. Sarkar, B. K. behera, P. Parida, V. K. Aralappamavar, S. Mondal, J. Dei, B. K. Das, S. Mukherjee, S. Pal, P. Weerathunge, R. Ramanathan, V. Bansal

Biosensors and Bioelectronics, vol. 219, 2023, p. 114771

α-synuclein as a promising biomarker for developing diagnostic tools against neurodegenerative synucleionopathy disorders

Gayatri Bagree, Oshadie De Silva, Piyumi Dinusha Liyanage, Sri Harsha Ramarathinam, Sandeep K Sharma, Vipul Bansal, Rajesh Ramanathan*

TrAC Trends in Analytical Chemistry, vol. 159, 2023, p. 116922

Differential interaction of 𝛼-synuclein conformers affect re-folding and activity of proteins

G. Bagree, T. Srivastava, S. Mahasivam, M. Sinha, V. Bansal, R. Ramanathan, S. Priya, S. K. Sharma

The Journal of Biochemistry, vol. 173(2), 2023, pp. 107–114

View all


Catalyst surfaces

We develop new optically active nanomaterials as photoactive catalysts to drive important chemical reactions.

Organic semiconductors

We create metal-organic semiconductors based on a unique molecule TCNQ and understand their optical and chemical properties to be used in a range of applications


We create new nanomaterials that can mimic the catalytic activity of natural enzymes, which can be used for developing sensors and antimicrobial surfaces.

Current PhD students

PhD Student
Sanjana focuses on creating nanozyme sensors using natural enzymes as recognition moieties.

PhD student
Pyria's work is focused on using nanozymes for antibacterial applications

PhD student
Sabeen's work is to understand how nanoparticles interact with HSA protein.

PhD student
Satnam's work is focused on creating new magnetic materials for biomedical imaging.

Previous students

Gayatri worked on understanding the mechanism of ⍺-synuclein proteotoxicity and development of sensor for detection of ⍺-synuclein conformers.

Sanje worked on plasmonic modulation of spatially confined reactions on a silver nanoprisim

Oshadie worked on tuning the key determinants of 2-dimensional transition metal electrocatalysts for oxygen evolution reaction.

Piyumi worked on understanding the interactions between nanozymes and aptamers to rationally design aptasensors for the detection of ampicillin in milk samples.

Zakir worked on metal-organic semiconducting charge transfer complexes based on TCNQFx (x= 0 and 4) for electron transfer reactions.

Mandeep worked on Using triethylamine as a versatile ligand to control the properties of nanomaterials

Wenyue worked on light response materials for microbial control and colorimetric sensing of UV radiations and vaginal infections

Pabudi worked on nanoparticle-enabled spectroscopic techniques for the detection of biomolecules.

Nurul worked on modulating the nanozyme activity for antibacterial and sensing applications

Mahsa worked on TCNQ-based metal-organic semiconducting hybrids as phototunable catalyst

Neha worked on studying the effect of pressure and temperature on the crystal structure of rare earth oxides and rare earth scandates.

Ana is working on creating hybrid materials as nanozymes for antibacterial applications

Aviraj worked on exploring new strategies for the fabrication of 2D materials with interesting optical properties.


Rajesh Ramanathan

Associate Professor and Co-Leader NanoBiotechnology Research Laboratory (NBRL) Group

School of Science

RMIT University


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