PROF. DR. VENGADESH A/L PERIASAMY

A biophysicist by interest, Dr. Vengadesh Periasamy is based in Low Dimensional Materials Research Centre (LDMRC), Department of Physics, Faculty of Science, University of Malaya in Kuala Lumpur, Malaysia as a Senior Lecturer/ Research Fellow. His field of expertise and interest mainly involves DNA electronics, Langmuir-Blodgett (LB), Biophotovoltaics (BPV) and Nanomedicine (Riboflavin, Green Synthesis of Nanoparticles for Antipathogenic and Anticancer Properties). His current research groups consist of numerous final year projects, interns, research assistants, MSc. and PhD. students comprising of various disciplines and nationality. Resulting research outputs have been published in various high impact factor journal papers, proceedings, patent, book and book chapter.

Research covers a comprehensive multi-disciplinary approach whereby underlying fundamentals are thoroughly investigated to enable possible applications by constructing, characterizing and testing prototype sensors/devices. Using LB technique to fabricate pure novel DNA films, we are actively pursuing frontier research into fundamental DNA electronics, which would ultimately enable DNA genomic sequencing for rapid DNA detection and also the fabrication of DNA based environmental sensors. LB method also allows flexibility in designing different types of graphene films either as porous anodes or highly transparent conducting material. These highly customized electrodes will then be utilized to investigate bio-signals or intrinsic cellular noises from antipathogenic/anticancer reactions and other biological pathways of interest. Current research directions are therefore directed towards understanding interfacial properties by deciphering extracted bio-signals to be applied in the fields of nano-bioelectronics, nano-medicine and biomedical technology.

Dr. Vengadesh’s interest in BPV is partly as a result of an MOU between University of Malaya and Centre of Research for Electrochemical Science and Technology (CREST), Department of Chemical Engineering and Biotechnology, University of Cambridge to undertake combined research efforts in algae biotechnology. He and his group is developing LB derived high porosity graphene films for application as an anodic material in BPV platforms. Initial results indicating an increased power output and open potential suggest the possibility of substituting the currently used conventional ITO anodes. The LB method utilized allows for attaining higher electrode surface area and better attachment of biofilms. Coupled with the presence of functional groups, the films fabricated enables easier and effective algae attachment onto the graphene anode surface resulting in superior biocompatibility and hence the improved power output.

Dr. Vengadesh visited CREST as a Post-doc/Academic Visitor from 21 January until 20 October 2014 to facilitate the collaborative research further and to establish a roadmap in BPV research between the two research centers.