Water-soluble gold ultrathin nanorods with NIR-II longitudinal localized surface plasmon resonance and improved stability.
Oleylamine-coated gold ultrathin nanorods (AuUNR:OA), featuring an anisotropic morphology with a diameter of ∼1.8 nm, exhibit exclusively the longitudinal mode of localized surface plasmon resonance (LSPR). However, reinforcing their structural stability and tuning their LSPR wavelengths into the second biological wind...