Nano Hues

How small structures create stunning colours in nature   In the 19th century, the piercingly blue morpho butterfly captivated the attention of people worldwide; its blue was so brilliant that one could not take their eyes away from it. Understandably, people wanted to extract the colour from the butterflies for human use, such as dyeing […]

Tracking Tiny Migrants

How insects traverse impossible distances   Somewhere over the Indian Ocean, the globe skimmer (Pantala flavescens) flaps its delicate golden wings, beginning a remarkable relay journey covering up to 14,000-18,000 km between India and Africa. These small insect travellers measure about 4-5 cm in length and are no heavier than a paper clip, yet they […]

Clean Reactions

The growth of Green Chemistry   A weathered, nearly half-century-old plaque hangs on the wall of Paul Anastas’ office at Yale University – an unusual keepsake for an academic. Its story dates back to the 1970s in Quincy, Massachusetts, where eight-year-old Paul watched his neighbourhood wetlands get taken over by glass-fronted insurance and bank buildings. […]

‘It requires a peculiar type of personality to groove on chemistry’

Over the past 45 years, Gautam R Desiraju has made contributions to science that have put him in a rarified international plane. A pioneer in crystal engineering, Desiraju has been at the vanguard of the field he helped create, though his interests have extended well beyond his scientific area to philosophy, history, geopolitics, and even […]

Fungal Hues

Demystifying nature’s oldest pigment producers   In Shantanu Shukla’s lab, dissecting insects is routine. The well-lit room, located in the Department of Developmental Biology and Genetics (DBG), IISc, is filled with young scientists studying scale insects – tiny plant vampires that feed on the plant phloem sap. The team investigates the intimate relationship between insects […]

The DIY Scientist

Creating under constraint   When Umesh Varshney joined IISc as an Assistant Professor, he was excited to dive straight into microbiology research. It was 1991, and he had just returned from his postdoctoral stint at MIT in Cambridge. He planned to study protein synthesis in Escherichia coli and DNA repair in mycobacteria, among other exciting […]