Results 21 to 30 of about 9,918,373 (259)

Visualizing ultrafast photothermal dynamics with decoupled optical force nanoscopy

open access: yesNature Communications, 2023
The photothermal effect in nanomaterials, resulting from resonant optical absorption, finds wide applications in biomedicine, cancer therapy, and microscopy.
Hanwei Wang   +4 more
doaj   +1 more source

Photothermal-Contrast Method Based on In Situ Gold Nanostructure Formation for Phenylalanine Detection in Human Blood

open access: yes, 2023
An innovative approach based on photothermal contrast to enhance analytical sensitivity of enzymatic phenylalanine detection at a solid surface was demonstrated. Gold nanoparticles in situ produced by the reduced form of nicotinamide adenine dinucleotide,
Maria Anna Messina (2983323)   +7 more
core   +1 more source

Photothermal detection of trace compounds in water, using the deflection of a water meniscus [PDF]

open access: yes, 1998
A novel photothermal detector is described, based on a closed cell suitable for use with low-frequency modulated continuous-wave light sources. Photothermal expansion in aqueous samples caused the deflection of a water meniscus held across a 200μℳ radius
Johnson, Mark   +2 more
core   +1 more source

Photothermal-Effect-Enhanced Photoelectrochemical Water Splitting in MXene-Nanosheet-Modified ZnO Nanorod Arrays

open access: yes, 2022
Engineering semiconductor photoelectrodes with excellent photogenerated charge separation and transportation capabilities is of great practical interest for efficient photoelectrochemical (PEC) water splitting.
Chunxiang Xu (346832)   +7 more
core   +1 more source

Photothermal detection of trace optical absorption in water by use of visible-light-emitting diodes [PDF]

open access: yes, 1998
Visible light emitting diodes of three different colors have been used to detect an absorbing compound (potassiumpermanganate) in trace quantities in aqueous solution.
Johnson, Mark   +2 more
core   +1 more source

A metal–organic framework nanocomposite with oxidation and near-infrared light cascade response for bacterial photothermal inactivation

open access: yesFrontiers in Chemistry, 2022
Photothermal treatment is an effective and precise bacterial disinfection method that can reduce the occurrence of bacterial drug resistance. However, most conventional photothermal treatment strategies have the problem that the photothermal response ...
Christopher Dorma Momo   +9 more
doaj   +1 more source

Facile Interfacial Synthesis of Densely Spiky Gold Nano-Chestnuts With Full Spectral Absorption for Photothermal Therapy

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
The gold nanostructure is regarded as the most promising photothermal agent due to its strong localized surface plasma resonance (LSPR) effect. In particular, the gold nanostructures with sharp spikes on the surface have higher optical signal enhancement,
Zhiping Wan   +8 more
doaj   +1 more source

Recent advances in photothermal materials for solar-driven crude oil adsorption

open access: yesNanotechnology Reviews, 2022
In recent years, the adsorption method is usually adopted in the actual treatment of crude oil spills. However, the high viscosity of crude oils prevents them from diffusing into the internal pores of the adsorbent, resulting in ineffective oil capture ...
Li Jinyang   +5 more
doaj   +1 more source

Optical manipulation in conjunction with photochemical/photothermal responses of materials [PDF]

open access: yes, 2022
This article reviews optical manipulation coupled with photochemical/photothermal responses of nanometer sized materials including molecular systems, polymers, and inorganic nanoparticles.
Kenji, Setoura   +3 more
core   +1 more source

Recent Progress of Photothermal Therapy Based on Conjugated Nanomaterials in Combating Microbial Infections

open access: yesNanomaterials, 2023
Photothermal therapy has the advantages of non-invasiveness, low toxicity, simple operation, a broad spectrum of antibacterial ability, and non-proneness to developing drug resistance, which provide it with irreplaceable superiority in fighting against ...
Yue Zhao   +4 more
doaj   +1 more source

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