Results 41 to 50 of about 2,736 (189)

Accumulated in-situ spectral information analysis of room-temperature phosphorescence with time-gated bioimaging

Materials Today Bio
This study introduces the time-gated analysis of room-temperature phosphorescence (RTP) for the in-situ analysis of the visible and spectral information of photons. Time-gated analysis is performed using a microscopic system consisting of a spectrometer,
Yong Ho Cho, Seokho Kim, Tae Kyung Won, Sunki Cho, Dong June Ahn   +4 more
doaj   +1 more source

Phosphorescent soft salt for ratiometric and lifetime imaging of intracellular pH variations

Chemical Science, 2016
A novel soft salt based phosphorescent probe has been successfully developed for ratiometric and lifetime imaging of intracellular pH variations in real time.
Yun Ma, Hua Liang, Yi Zeng, Huiran Yang, Cheuk-Lam Ho, Wenjuan Xu, Qiang Zhao, Wei Huang, Wai-Yeung Wong   +8 more
openaire   +3 more sources

Oxygels: Tunable Phosphorescent Hydrogels for Cherenkov‐Excited Luminescence Imaging (CELI) of Oxygen

Advanced Healthcare Materials, EarlyView.
Biocompatible hydrogels with covalently embedded near‐infrared phosphorescent probes enable local tissue pO2 quantification by means of Cherenkov‐excited luminescence imaging (CELI), where optical excitation occurs within tissues upon irradiation with high‐energy electron beams.
Simin Belali, Marien Iliza Ochoa Mendoza, Matthew S. Reed, Danylo Mykhalchuk, Annemarie Lang, Joel D. Boerckel, Brian W. Pogue, Sergei A. Vinogradov   +7 more
wiley   +1 more source

Merger of dynamic two-photon and phosphorescence lifetime microscopy reveals dependence of lymphocyte motility on oxygen in solid and hematological tumors

Journal for ImmunoTherapy of Cancer, 2019
Background Low availability of oxygen in tumors contributes to the hostility of the tumor microenvironment toward the immune system. However, the dynamic relationship between local oxygen levels and the immune surveillance of tumors by tumor infiltrating
Mateusz Rytelewski, Karine Haryutyunan, Felix Nwajei, Meenakshi Shanmugasundaram, Patrick Wspanialy, M. Anna Zal, Chao-Hsien Chen, Mirna El Khatib, Shane Plunkett, Sergei A. Vinogradov, Marina Konopleva, Tomasz Zal   +11 more
doaj   +1 more source

Rhenium(I) Block Copolymers Based on Polyvinylpyrrolidone: A Successful Strategy to Water-Solubility and Biocompatibility

Molecules, 2023
A series of diphosphine Re(I) complexes Re1–Re4 have been designed via decoration of the archetypal core {Re(CO)2(N^N)} through the installations of the phosphines P0 and P1 bearing the terminal double bond, where N^N = 2,2′-bipyridine (N^N1), 4,4′-di ...
Kristina S. Kisel, Vadim A. Baigildin, Anastasia I. Solomatina, Alexey I. Gostev, Eugene V. Sivtsov, Julia R. Shakirova, Sergey P. Tunik   +6 more
doaj   +1 more source

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

Advanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti, Sergio Martínez‐Saiz, Morena Cervino, Edoardo Stanzani, Sandra Jenatsch, Qingsen Zeng, Joo Sung Kim, Dong‐Hyeok Kim, Eojin Yoon, Tae‐Woo Lee, Daniel Tordera, Henk J. Bolink   +11 more
wiley   +1 more source

Bromine indirubin FLIM/PLIM sensors to measure oxygen in normoxic and hypoxic PDT conditions

Photodiagnosis and Photodynamic Therapy
Background: The induction of phototoxicity during photodynamic therapy (PDT) is dependent on oxygen availability. For this reason, the development of sensors to measure oxygen and oxygen consumption is extremely important.
D.N.S. dos Santos, N. Naskar, E. Delgado-Pinar, K. Reess, J.S. Seixas de Melo, A. Rueck   +5 more
doaj   +1 more source

Bubble Formation Control: Fabrication of Centimeter‐Sized Tissue‐Like Constructs by Catalase‐Coated Oxygen‐Releasing Hydrogel

Advanced Materials, EarlyView.
Oxygen‐releasing hydrogels are widely used to support cell survival in 3D cultures and to promote wound healing. However, incorporating catalase to convert H2O2 into O2 often generates additional oxygen bubbles, leading to material instability which rarely addressed.
Sukulya Bunuasunthon, Isabel F. Amaral, Ana P. Pêgo, Michiya Matsusaki   +3 more
wiley   +1 more source

Planar Chiral Carbazole‐Naphthalene Bisimide Hetero‐Cyclophane for Circularly Polarized Delayed Fluorescence

Angewandte Chemie, EarlyView.
Tightly stacked carbazole and 1,2:5,6–naphthalene bisimide units afforded a planar chiral hetero‐cyclophane. The architecturally refined system, with strong charge‐transfer interaction and enhanced structural rigidity, exhibits orange‐red delayed CPL emission in both solution and solid states.
Sanchari Debnath, Swadhin Garain, Yvonne Wagenhäuser, Frank Würthner   +3 more
wiley   +2 more sources

In vivo imaging with a water immersion objective affects brain temperature, blood flow and oxygenation

eLife, 2019
Previously, we reported the first oxygen partial pressure (Po2) measurements in the brain of awake mice, by performing two-photon phosphorescence lifetime microscopy at micrometer resolution (Lyons et al., 2016).
Morgane Roche, Emmanuelle Chaigneau, Ravi L Rungta, Davide Boido, Bruno Weber, Serge Charpak   +5 more
doaj   +1 more source