Surfactant-free synthesis of fluorescent platinum nanoclusters using HEPES buffer for hypochlorous acid sensing and imaging

Abstract

In this study, by employing the weak reducibility of non-toxic HEPES, a novel water-soluble fluorescent HEPES@Pt NC was successfully prepared by a simple surfactant-free synthesis strategy for ClO− sensing and imaging.

Surfactant-free synthesis of metal and metal oxide nanomaterials: a perspective

“…As nanoprobes, they exhibited bright blue fluorescence, high stability, and biocompatibility, which their fluorescence could be specifically quenched with hypochlorous acid by a static quenching pathway. 72 Mao et al 73 introduced a simple and controllable "mix-and-heat" mechanochemical technique for synthesizing Ag/expanded graphite (EG) composites with high chemical stability under different pH conditions (they could be stored for ~120 days), providing suitable composites to be applied as reliable surface-enhanced Raman scattering (SERS) active substrates with reusability of at least 4 times. By applying these composites with SERS performance, less 15 than 10 ppb of crystal violet (CV) and methylene blue (MB) could be detected; the trapping of the analytes was mostly accomplished in the substrate in the first 15 min and the kinetic was based on the pseudo-second-order model (Figure 3).…”

“…As nanoprobes, they exhibited bright blue fluorescence, high stability, and biocompatibility, while their fluorescence could be specifically quenched with hypochlorous acid by a static quenching pathway. 72…”

Tamm Plasmon-Mediated Tunable Absorption Switching in Atomically Precise Pt17 Nanoclusters for Nonlinear Photonic Applications

“…Understanding the interaction between MNCs and photons of different wavelengths is important for utilizing their functionality in diverse applications requiring targeted light manipulation. Among the noble MNCs, platinum (Pt) nanoclusters have predominantly established their significance in sensing and electrochemical applications , owing to their high fluorescence and catalytic activity. Pt nanoclusters are known for their stable nature in air, which makes them less prone to degradation, improving their long-term performance in photonic devices .…”