Geetika is currently investigating the role of plastic-associated microbial biofilms in altering the biological and physicochemical interactions of MPs in the marine environment and the possible implications to human health. She has employed a metagenomics approach to identify the structure and functions of plastic-associated microbial biofilms on various types of consumer plastics to investigate the possible environmental ramifications of the microbial genes enriched on plastics. Her future research seeks to investigate the leaching of contaminants from MPs in the human gut environment (in-vitro) and explore the associated cytotoxicity to understand the human health risks of MP ingestion.

