NPL’s device produces high quality, single-layer graphene

NPL researchers have designed a low-cost, low-pressure chemical vapour deposition (LPCVD) device that allows high quality, single-layer graphene measuring 4 inches in length and 2 inches in width to be grown. The quality of the single-layer graphene is metrology-grade, and can be used in next-generation quantum devices. Researchers at Delhi’s National Physical Laboratory (CSIR-NPL) have … Continue reading NPL’s device produces high quality, single-layer graphene

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IISER Pune researchers produce a novel drug-delivery system to kill cancer cells

Researchers at the Indian Institute of Science Education and Research (IISER) Pune have developed a novel cancer drug-delivery system using graphene oxide nanoparticles. In a serendipitous discovery, a team led by Dr. Sudipta Basu and Dr. Nirmalya Ballav from the Department of Chemistry found that when a FDA-approved anticancer drug cisplatin was added, the graphene … Continue reading IISER Pune researchers produce a novel drug-delivery system to kill cancer cells

IIT Bombay uses mango leaves to make fluorescent graphene quantum dots

Using mango leaves to synthesise fluorescent graphene quantum dots (nanocrystals of semiconductor material), researchers from the Indian Institute of Technology (IIT) Bombay have been able to produce cheap probes for bioimaging and for intracellular temperature sensing. Unlike the currently used dyes, quantum dots synthesised from mango leaves are biocompatible, have excellent photostability and show no … Continue reading IIT Bombay uses mango leaves to make fluorescent graphene quantum dots

IISc designs a novel graphene electrical conductor

Researchers from the Indian Institute of Science (IISc), Benagluru have been able to experimentally produce a new type of electrical conductor that was theoretically predicted nearly 20 years ago. A team led by Prof. Arindam Ghosh from the Department of Physics, IISc successful produced graphene that is single or a few layers thick to conduct … Continue reading IISc designs a novel graphene electrical conductor

Indian researchers use graphene sieves to turn seawater into drinking water

Producing potable water through desalination may become more efficient and less energy intensive if researchers at the University of Manchester are able to successfully use graphene oxide (GO) membranes to filter common salts present in seawater on a commercial scale. When the spacing between two successive graphene oxide sheets was nearly 10 Å (1 angstrom … Continue reading Indian researchers use graphene sieves to turn seawater into drinking water

Chennai researchers’ simple approach to produce graphene nanosheets

By using a simple, inexpensive, quick process researchers from the University of Madras have been able to produce a monolayer or a few layers thick graphene nanosheets from graphite material without using any strong oxidising or reducing agents. The results were published in the journal Materials Letters. Among several techniques adopted to synthesize graphene from … Continue reading Chennai researchers’ simple approach to produce graphene nanosheets

The challenge for chemistry

Published in The Hindu on January 6, 2011 “Reinvention is essential for the continuing relevance and survival of chemistry,” warn George M. Whitesides from Harvard University, Cambridge and John Deutch from MIT, Cambridge. “If chemistry as a discipline is poorly equipped for today's problems, it will wither before the challenges of the future.” This is … Continue reading The challenge for chemistry