The National Science Foundation (NSF) is offering a federal grant opportunity titled "Nanoscale Interactions," aimed at advancing the understanding of interactions between nanomaterials and biological and environmental media. This program encourages collaborative and interdisciplinary research proposals that explore various aspects of nanoscale interactions, including the characterization of nanomaterials, development of predictive tools, and investigations into quantum phenomena related to nanostructures. The NSF anticipates funding approximately 100 awards, with no cost-sharing requirements, and proposals can be submitted at any time. For further details, applicants can contact NSF grants.gov support at grantsgovsupport@nsf.gov or visit the program's webpage at http://www.nsf.gov/funding/pgm_summ.jsp?pims_id=506129.