Results 51 to 60 of about 12,719 (310)

Shaping Ti3C2 MXene Nanospheres for Precision Near‐Infrared Photothermal Therapy

Advanced Functional Materials, EarlyView.
In this study, we report producing spherical MXenes via fs laser fragmentation of Ti3C2 flakes in liquid medium. The nanoparticles demonstrated pronounced light absorption and high photothermal conversion efficiencies of 68% and 63% under heating with NIR‐I and NIR‐II lasers, respectively.
Julia S. Babkova, Ivan V. Zelepukin, Konstantin G. Shevchenko, Gleb V. Tikhonowski, Lyubov V. Gorelik, Anton A. Popov, Anna S. Sogomonyan, Alina Yu. Kapitannikova, Ivan S. Kazantsev, Dmitry V. Dyubo, Daria A. Panova, Daniil I. Tselikov, Anton A. Minnekhanov, Aziz B. Mirkasymov, Georgy A. Ermolaev, Alexander V. Syuy, Gleb I. Tselikov, Aleksey V. Arsenin, Andrei V. Kabashin, Kostya S. Novoselov, Sergey M. Deyev, Valentyn S. Volkov   +21 more
wiley   +1 more source

Thermoplasmonics: Quantifying plasmonic heating in single nanowires

, 2014
Plasmonic absorption of light can lead to significant local heating in metallic nanostructures, an effect that defines the sub-field of thermoplasmonics and has been leveraged in diverse applications from biomedical technology to optoelectronics ...
Herzog, Joseph B., Knight, Mark W., Natelson, Douglas   +2 more
core   +1 more source

Laser induced SERS switching using plasmonic heating of PNIPAM coated HGNs [PDF]

, 2015
This is the first report of SERS switching ‘on and off’ using laser induced plasmonic heating of poly(N-isopropylacrylamide) (PNIPAM) coated hollow gold nanoshells (HGNs).
Faulds, K., Graham, D., Kearns, H., Shand, N. C.   +3 more
core   +1 more source

An Engineered Living Material With Pro‐Angiogenic Activity Inducible by Near‐Infrared Light

Advanced Functional Materials, EarlyView.
NIR‐responsive engineered living materials (ELMs) for controlled angiogenesis: Near‐infrared (800 nm) light activates engineered probiotic bacteria within alginate‐based living materials to secrete a blood vessel‐regenerating protein. The released protein promotes pro‐angiogenic effects in endothelial networks and chick chorioallantoic membranes.
Anwesha Chatterjee, Stefanie S. M. Meier, Sara Trujillo, Andreas Möglich, Shrikrishnan Sankaran   +4 more
wiley   +1 more source

Photo-Enhanced Singlet Oxygen Generation of Prussian Blue-Based Nanocatalyst for Augmented Photodynamic Therapy

iScience, 2018
Summary: Therapeutic effects of photodynamic therapy (PDT) remain largely limited because of tumor hypoxia. Herein, we report safe and versatile nanocatalysts (NCs) for endogenous oxygen generation and imaging-guided enhanced PDT.
Dongdong Wang, Ruohong Shi, Jiajia Zhou, Sixiang Shi, Huihui Wu, Pengping Xu, Hui Wang, Guoliang Xia, Todd E. Barnhart, Weibo Cai, Zhen Guo, Qianwang Chen   +11 more
doaj   +1 more source

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

Advanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu, Zhiqi Cai, Xiangxin Sun, Hanyi Zhang, Yiming Hao, Jun Wu, Zekun Yan, Xue Wu, Yiqi Liang, Liming Wang, Songnan Qu   +10 more
wiley   +1 more source

Photothermal catalytic transfer hydrogenolysis of protolignin

Nature Communications
Photothermal catalysis is a promising strategy to combine the advantages of both thermal-catalysis and photocatalysis. Herein we achieve the protolignin conversion to aromatics via the photothermal catalytic transfer hydrogenolysis process intensified by
Hongji Li, Xiaotong Sun, Ting Li, Zhitong Zhao, Hui Wang, Xiaomei Yang, Chaofeng Zhang, Feng Wang   +7 more
doaj   +1 more source

V-doped MoS2 nanozymes providing reactive oxygen species and depleting glutathione for photothermally-enhanced nanocatalytic therapy

Frontiers in Pharmacology
Introduction: The tumor microenvironment and multidrug resistance of tumor cells seriously impair the activity of the nanozymes.Methods: Herein, a polyethylene glycol (PEG)-modified vanadium-doped molybdenum disulfide (V-MoS2@PEG) nanozymes were ...
Haiyan Wang, Pengle Xia, Mekhrdod S. Kurboniyon, Shuhong Fang, Kunying Huang, Shufang Ning, Guanqiao Jin, Litu Zhang, Chen Wang   +8 more
doaj   +1 more source

Photothermal and Catalytic Performance of Multifunctional Cu-Fe Bimetallic Prussian Blue Nanocubes with the Assistance of Near-Infrared Radiation

Nanomaterials, 2023
Copper and iron are the basic metal elements that have attracted much attention in industry. Prussian blue (PB) is a significant class of metal–organic frameworks (MOFs); however, the lack of such linkages between the structure and properties, as well as
Bairui Qi, Qiang Xu, Yunxuan Cao, Zhu Xiao   +3 more
doaj   +1 more source

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source