Tuning the interparticle distance between assembled copper nanocrystals to improve the optical plasmon resonance, photothermal, and antibacterial properties under visible light. - Bakheet, M.; Elgazzar, Elsayed; Ali, H.A.; Mahmoud, Waleed E. (Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy, 2026)