@article{open3202, volume = {17}, title = {Nanoscale size impact of nanoparticle interaction and activity studies with urease}, author = {Priya Bhardwaj and Bhawana Bisht and Vijayender Bhalla}, publisher = {The Royal Society of Chemistry}, year = {2025}, pages = {5000--5004}, journal = {Nanoscale}, url = {http://crdd.osdd.net/open/3202/}, abstract = {Herein, we provide insights into the size-dependent interactions of silver nanoparticles (AgNPs) with urease and their implications for enzyme inhibition. AgNPs with a size of 5 nm exhibited the strongest binding affinity of 66 nM, resulting in significant enzyme attachment, interfering enzyme conformation, and a consequent loss of activity. Mid-sized AgNPs, i.e., 20 and 50 nm, exhibited binding affinities of 712 and 616 nM, causing only slight structural alterations. In contrast, 100 nm AgNPs demonstrated a high binding affinity of 171 nM accompanied by a favorable enthalpic contribution and a pronounced inhibitory effect.} }