Results 71 to 80 of about 21,084 (341)

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

Advanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

Study of TADF Emitters in OLEDs [PDF]

, 2015
Delayed fluorescence through thermally activated delayed fluorescence (TADF) has great potential for the creation of inexpensive and highly efficient white lighting applications, with superior colour rendering.
GRAVES, DAVID,RICHARD
core  

Highly efficient, dual state emission from an organic semiconductor

, 2013
We report highly efficient, simultaneous fluorescence and phosphorescence (74% yield) at room temperature from a single molecule ensemble of (BzP)PB dispersed into a polymer host. The slow phosphorescence (208 ms lifetime) is very efficient (50%) at room
Baldo, Marc A., Prins, Ferry, Reineke, Sebastian, Seidler, Nico, Tisdale, William A., Yost, Shane R.   +5 more
core   +1 more source

An ambipolar BODIPY derivative for a white exciplex OLED and cholesteric liquid crystal laser toward multifunctional devices [PDF]

, 2017
A new interface engineering method is demonstrated for the preparation of an efficient white organic light-emitting diode (WOLED) by embedding an ultrathin layer of the novel ambipolar red emissive compound 4,4-difluoro-2,6-di(4-hexylthiopen-2-yl)-1,3,5 ...
Benjamin Breig, de Gennes P. G., Dmytro Volyniuk, Enrico Angioni, Ilchishin I. P., Juozas V. Grazulevicius, Kalinowski J., Lakowicz J. R., Marian Chapran, Neil J. Findlay, Oleg D. Lavrentovich, Pavlo Stakhira, Peter J. Skabara, Tell Tuttle, Tse S., Vladyslav Cherpak, Yuriy A. Nastishin   +16 more
core   +2 more sources

In Situ 3D Bioprinting: Impact of Cross‐Linking on the Adhesive Properties of Hydrogels

Advanced Functional Materials, EarlyView.
In situ 3D bioprinting enables the direct deposition of cell‐laden, adhesive biomaterials for on‐site tissue regeneration. This review provides a comprehensive overview of how cross‐linking influences the bioadhesive properties of hydrogels used in 3D bioprinting, highlighting cross‐linking triggers, bioadhesion mechanisms, polymer interpenetration ...
Odile Romero Fernandez, Mulazim Hussain Asim, Shumaila Arshad, Gergely Kali, Andreas Bernkop‐Schnürch   +4 more
wiley   +1 more source

Donor–Acceptor Fluorophores for Energy-Transfer-Mediated Photocatalysis [PDF]

, 2018
Triplet–triplet energy transfer (EnT) is a fundamental activation pathway in photocatalysis. In this work, we report the mechanistic origins of the triplet excited state of carbazole-cyanobenzene donor–acceptor (D–A) fluorophores in EnT-based ...
Huang, Jier, Li, Shuzhou, Liu, Qiuhua, Lu, Jingzhi, Pattengale, Brian, Shi, Wenxiong, Yang, Sizhuo, Zhang, Jian   +7 more
core   +3 more sources

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

Electron spin resonance resolves intermediate triplet states in delayed fluorescence

Nature Communications, 2021
Despite advances in the design of thermally activated delayed fluorescence (TADF) emitters for devices, the effect of spin interactions is not well understood.
Bluebell H. Drummond, Naoya Aizawa, Yadong Zhang, William K. Myers, Yao Xiong, Matthew W. Cooper, Stephen Barlow, Qinying Gu, Leah R. Weiss, Alexander J. Gillett, Dan Credgington, Yong-Jin Pu, Seth R. Marder, Emrys W. Evans   +13 more
doaj   +1 more source

Morphology Effectively Controls Singlet-Triplet Exciton Relaxation and Charge Transport in Organic Semiconductors

, 2009
We present a comparative study of ultrafast photo-conversion dynamics in tetracene (Tc) and pentacene (Pc) single crystals and Pc films using optical pump-probe spectroscopy.
A. J. Taylor, A. P. Ramirez, B. K. Crone, D. L. Smith, F. A. Hegmann, J. Demsar, M. Pope, R. D. Averitt, R. L. Martin, R. F. Service, S. Tretiak, V. K. Thorsmølle, X. Chi   +12 more
core   +1 more source

Photoswitchable diacylglycerols enable optical control of protein kinase C. [PDF]

, 2016
Increased levels of the second messenger lipid diacylglycerol (DAG) induce downstream signaling events including the translocation of C1-domain-containing proteins toward the plasma membrane. Here, we introduce three light-sensitive DAGs, termed PhoDAGs,
A Betz, A Burgalossi, A Nadler, A Nadler, A Wuttke, AC Newton, Alexander Gottschalk, C Yang, Carsten Schultz, CI Bargmann, CJ Nolan, D Toullec, DA Jacobson, DA Jacobson, David J Hodson, DB Konrad, Dirk Trauner, Dmytro A Yushchenko, E Oancea, F Plenge-Tellechea, F Varoqueaux, FM Ashcroft, G Reither, GA Rutter, Guy A Rutter, H Fliegl, H Ishihara, J Basu, J Das, JA Frank, JA Lewis, James Allen Frank, Jatin Nagpal, JD Violin, JD Violin, JE Toettcher, Jeong-Seop Rhee, JM Herbert, JS Rhee, JT Fleming, KDB Wierda, L Coussens, M Almena, M Putyrski, MA Ravier, MA Ravier, MS Pessin, N Brose, N Brose, N Brose, Nils Brose, Noa Lipstein, P Bergsten, PA Marignani, PA Wender, PK Dadi, RJ Davis, S Brenner, S Corbalán-García, S Feng, T Hofmann, TR Mahoney, U Kikkawa, X Lou, Y Kurohane Kaneko, Y Zhao   +65 more
core   +3 more sources