We are interested in the development of paper-based nano biosensors for clinical and environmental applications and the synthesis of nano-carbon materials, photoluminescent nano-carbons, graphene-based materials, core-shell nano-crystals and studying their various applications in bio-imaging, catalysis, drug delivery, and electroanalytical chemistry. In addition, fabrication and development of versatile biosensors for clinically important bio-markers using nanotechnology and modern electronics tools.