Results 51 to 60 of about 1,171,540 (291)

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

Advanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash, Jihun Lee, J. Scott VanEpps, Sungmin Nam, Jouha Min   +4 more
wiley   +1 more source

Configuration‐Encoded Cell Alignment by Light‐Gated Silicon Photovoltaic Microcell Arrays

Advanced Functional Materials, EarlyView.
Light‐gated silicon photovoltaic microcells convert pulsed illumination into localized electrical cues. Arranging otherwise similar microcells into four‐lobed, six‐lobed, or circular patterns directs fibroblasts into corresponding local arrangements without wired stimulation.
Yifan Tao, Ilayda Namli, Joseph Christakiran Moses, Youdi Liu, Suihong Liu, Syed Hasan Askari Rizvi, Yasar Ozer Yilmaz, Ibrahim T. Ozbolat   +7 more
wiley   +1 more source

Photothermal-Responsive Graphene Oxide Membrane with Smart Gates for Water Purification

, 2019
In this work, photothermal-responsive graphene oxide (GO)-based membranes intercalated by multiwalled carbon nanotubes (MWCNTs) were prepared by polydopamine (PDA) modification and 2-ureido-4­[1H]-pyrimidinone (UPy) assembly process.
Zheng Zhang, Zheng Zhang (88857), Mingliang Du (5391932), Piming Ma, Hongji Zhang, Weifu Dong, Mingliang Du, Piming Ma (1488949), Ting Li (117885), Yang Wang (5921), Mingqing Chen, Hongji Zhang (303158), Mingqing Chen (736531), Ting Li, Weifu Dong (1488952), Yang Wang   +15 more
core   +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., Jane Hodgkinson, Mark Johnson, John P Dakin   +5 more
core   +1 more source

Critical Coupling in Semi‐Trasparent Fano Resonators for Photothermal Converters

Advanced Functional Materials, EarlyView.
An ultrathin metal–insulator multilayer architecture is engineered to exploit Fano‐resonant critical coupling, completely suppressing optical reflectance while achieving a balanced 50:50 trade‐off between absorbance and transmittance. Upon laser excitation at resonance, the metamaterial generates intense localized heat (ΔT≈550∘C$\Delta T {\approx }550^\
Giuseppe Emanuele Lio, Giuseppe Nicoletta, Roberto Caputo, Antonio Ferraro   +3 more
wiley   +1 more source

A novel conjugated polymer synthesized via a noble metal-free catalyst in photothermal therapy of hepatocellular carcinoma mediated by second near-infrared (NIR-II) laser

Materials Today Bio
Photothermal therapy (PTT) utilizes photothermal materials to convert light energy into heat under external light irradiation, effectively killing cancer cells.
Shengsheng Cui, Xinni Pan, Shanshan Fan, Cheng Cao, Yingao Jiao, Yanfei Fu, Jiaqi Niu, Shujin Lin, Jingmao Lao, Yanlei Liu   +9 more
doaj   +1 more source

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., Jane Hodgkinson, John P. Dakin, Mark Johnson   +5 more
core   +1 more source

Microfluidic Architecting of Patchy MXene Core‐Shell Particles for Ultralow‐Loading Photothermal Shape‐Memory Actuation

Advanced Functional Materials, EarlyView.
Spatially distributing Ti3C2Tx nanosheets into core‐shell architecture, rather than as directly dispersed flakes, mitigates aggregation and enhances photon harvesting. When the Ti3C2Tx core‐shell particles are incorporated into a shape‐memory polymer matrix at an ultralow loading of 0.0024 wt%, the improved photothermal conversion translates into ...
May Maung Zaw, Maxim M. Trubyanov, Qian Wang, Siyu Chen, Hongyi Chen, Keyu Chen, Hongbin Sun, Muthu Vignesh Vellayappan, Xiaoying Qi, Sharon Mui Ling Nai, Kostya S. Novoselov, David W. Rosen, Daria V. Andreeva   +12 more
wiley   +1 more source

Selenium‐Integrated Cyanine Dye With Enhanced Photophysical Properties for Optoacoustic‐Guided Cancer Imaging and Therapy

Advanced Functional Materials, EarlyView.
This study introduces selenium‐integrated cyanine dye (Se‐Cyn), with superior photostability, absorption, and photothermal efficiency, outperforming ICG in NIR window. Its nanoparticle form remains stable in water, accumulates in tumors, and enables strong optoacoustic imaging and effective phototherapy outcomes.
Divyesh Shelar, Snehal Salunkhe, Tony Fröhlich, Uwe Klemm, Pia Anzenhofer, Birgit Rathkolb, Martin Hrabě de Angelis, Oliver Plettenburg, Michael Sattler, Sudesh T. Manjare, Vipul Gujrati, Vasilis Ntziachristos   +11 more
wiley   +1 more source

Supramolecular Photothermal Effects: A Promising Mechanism for Efficient Thermal Conversion

, 2019
Supramolecular assemblies have been very successful in regulating the photothermal conversion efficiency of organic photothermal materials in a simple and flexible way, compared with conventional molecular synthesis.
Yan, Xuehai, Liu, Yamei, Zhao, Luyang, Xing, Ruirui   +3 more
core   +1 more source