Dr Charanpreet Singh's PhD work explored a novel bio-inspired approach for designing artificial blood vessel implants known as stent-grafts. The design was inspired from body design of a caterpillar. This design concept induced natural flexibility and expandability property in the new stent-graft, which is considered critical in deciding long-term health of treated patients. Here is Dr Charanpreet in conversation with SBS Punjabi's Preetinder Grewal.