Ludhiana, August 7: Dr K.P. Singh, the scientist of Directorate of Maize Research, Indian Council of Agricultural Research (ICAR), New Delhi, delivered a talk on “Carbon nanotube and its bio-sensing applications” during the seminar, organised by the Punjab Agricultural University (PAU) Science Club, here today. The PAU deans, senior officers, heads of the various departments, faculty members and students attended the seminar.
In his talk, Dr Singh said that carbon nanotube is a new form of carbon, which is several microns long and just a few nanometers in diameter. Nanotubes are either metallic or semi-conducting, depending upon how they are rolled up out of graphene. He told that carbon nanotube plays a vital role in development of nano-devices because of its strength, extra-ordinary electrical properties, bio-compatibility and size compatibility with the bio-molecules like enzymes, virus, etc.
Referring to nanoscience and nanotechnology, Dr Singh said that both are truly inter-disciplinary, as it involves physicists, chemists, engineers and many others. Properties that often change at nano-scale include chemical (reactivity, reaction rate), optical (color, transparency), electrical (conductivity) and mechanical (hardness), noted he. Besides, he shed light on nanostructures, nanoparticles, electronic transport in nanostructures, nano-biosensor, bio-sensor components, functionalisation of carbon nanotubes and difference between nano and micro domains.
Earlier, Dr Gursharan Singh, Dean of Postgraduate Studies, welcomed the dignitaries and the participants. He gave a brief introduction of the scientific accomplishments of the speaker and said that PAU science club aims at promoting scientific temperament among the students as well as faculty through the organisation of various activities. Dr Singh and deans presented a memento to the speaker.