Results 21 to 30 of about 9,398,674 (305)

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

, 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, Hodgkinson, Jane, Dakin, John P.   +2 more
core   +1 more source

Visualizing ultrafast photothermal dynamics with decoupled optical force nanoscopy

Nature Communications, 2023
The photothermal effect in nanomaterials, resulting from resonant optical absorption, finds wide applications in biomedicine, cancer therapy, and microscopy.
Hanwei Wang, Sean M. Meyer, Catherine J. Murphy, Yun-Sheng Chen, Yang Zhao   +4 more
doaj   +1 more source

Comparison of self-referencing techniques for photothermal detection of trace compounds in water [PDF]

, 2000
Self-referencing techniques are compared for a closed-cell photothermal detector that uses a water meniscus as a pressure sensor. Deflection of the meniscus was measured using an optical fibre Fabry–Perot interferometer.
Johnson, Mark, Jane Hodgkinson, Hodgkinson, J., Hodgkinson, Jane, Johnson, M., Dakin, J.P., Dakin, John P., Mark Johnson, John P Dakin   +8 more
core   +1 more source

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

Frontiers 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, Jinmao Gu, Yining Wang, Jun Qian, Junle Zhu, Feng Chen, Haoheng Wang, Huairui Chen, Chun Luo   +8 more
doaj   +1 more source

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

Nanotechnology 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, Wang Zhenyu, Deng Hanpeng, Li Jiayang, Wang Bin, Zhou Zuowan   +5 more
doaj   +1 more source

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

Frontiers 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, Yuan Zhou, Yuan Zhou, Lanxin Li, Lanxin Li, Weisheng Zhu, Luyao Wang, Xingping Liu, Wei Bing, Zhijun Zhang   +9 more
doaj   +1 more source

PhotothermalPhage: A Virus-Based Photothermal Therapeutic Agent [PDF]

, 2021
: Virus-like particles (VLPs) are multifunctional nanocarriers that mimic the architecture of viruses. They can serve as a safe platform for specific functionalization and immunization, which provides benefits in a wide range of biomedical applications ...
Yalini H., Wijesundara, Nicole J., De Nisco, Hamilton, Lee, Perouza, Parsamian, Jeremiah J., Gassensmith, Fabian C., Herbert, Abhinay V., Adlooru, Arezoo, Shahrivarkevishahi, Candace, Benjamin, Michael A., Luzuriaga, Jashkaran, Gadhvi, Olivia R., Brohlin, Alisia C., Tumac   +12 more
core   +1 more source

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

Nanomaterials, 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, Yi Wang, Xiaoyu Wang, Ruilian Qi, Huanxiang Yuan   +4 more
doaj   +1 more source

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

, 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, Hodgkinson, Jane, Dakin, John P.   +2 more
core   +1 more source

A Stable Open-Shell Conjugated Diradical Polymer with Ultra-High Photothermal Conversion Efficiency for NIR-II Photo-Immunotherapy of Metastatic Tumor

Nano-Micro Letters, 2023
Highlights By employing side-chain regulation, the photothermal therapy response of conjugated diradical polymer can red-shift from near-infrared (NIR)-I to the NIR-II region.
Yijian Gao, Ying Liu, Xiliang Li, Hui Wang, Yuliang Yang, Yu Luo, Yingpeng Wan, Chun-sing Lee, Shengliang Li, Xiao-Hong Zhang   +9 more
doaj   +1 more source