Photothermal-enhanced tandem enzyme-like activity of Ag2-xCuxS nanoparticles for one-step colorimetric glucose detection in unprocessed human urine

Hot Carriers and Photothermal Effects of Monolayer MoOx for Promoting Sulfite Oxidase Mimetic Activity

“…Plasmonic nanostructures are currently gaining tremendous attention owing to their strong and tunable light-harnessing capabilities, as a result of LSPR. , LSPR in plasmonic nanostructures can be either damped radiatively by re-emitting photons with dissipating energy by heat, or nonradiatively relaxation energy coupled with the generation of hot carriers (hot electron–hole pairs) via Landau damping. ,− The generation of hot carriers induced by LSPR can be directly utilized into activating the chemical transformations or generating local heat for immense applications, for instance, photothermal image and therapy. − Recently, LSPR-induced catalysis has gained great progress in photocatalysis, , photodetection, and even enzyme-like study. The nanostructures with the plasmonic nanostructure have been reported to accelerate the enzyme-like performance via the LSPR-generated hot carriers or photothermal excitation. ,,− The expanding of plasmonic-modulated nanozymes makes nanozymes distinct from other enzyme alternatives, considering their unique spatiotemporal controllability provided by LSPR. , …”

Biocompatible Inorganic Nanoagent for Efficient Synergistic Tumor Treatment with Augmented Antitumor Immunity

“…[11][12][13] We used 3,3′,5,5′-tetramethylbenzidine (TMB), a dye that can be degraded by •OH, to explore the •OH generation capacity in phosphate-buffered solution (PBS) (pH 6.0). [28][29][30] A typical absorption peak was observed at 652 nm in the ultraviolet-visible (UV-vis) absorption spectra after the addition of nanoagents into the mixture of TMB and H 2 O 2 , while a negligible absorbance value was recorded in pure TMB solution (Figure S14, Supporting Information). This behavior suggests that prepared nanoagents can effectively produce •OH radicals.…”

Sensitive detection of the okadaic acid marine toxin in shellfish by Au@Pt NPs/horseradish peroxidase dual catalysis immunoassay

“…Currently, signal amplification strategies based on active nanoparticle catalysis have been proposed and intensively used for sensitivity enhancement. 23 Attributed to the high loading of signal labels and their inherent catalytic activity, special functional nanomaterials such as Au nanospheres, 24 carbon nanotubes 25 and platinum nanoparticles (Pt NPs) 26 were often adopted for signal reinforcement and are widely used for bioassays of proteins, drug residues and biological toxins. Attributed to the special change of surface atomic arrangement and electronic structure, 27 Au@Pt bimetallic nanoparticles displayed higher catalytic activity than the single Au or Pt atoms, and have been employed for the sensitive colorimetric immunoassay of mycotoxins and phycotoxins.…”