Results 101 to 110 of about 7,241,935 (286)

Single‐Step Fabrication of Smart 3D Microstructures Exploiting Naphthopyrans as Photoinitiators and Photochromic Molecules

Advanced Optical Materials, EarlyView.
Naphthopyran–benzophenone compounds can act simultaneously as photoinitiators and photochromic molecules for two‐photon polymerization. Using a single‐step process, liquid photoresist is encapsulated within polymerized 3D microstructures, preserving reversible UV–vis photochromism after fabrication.
João P. Leote, Artur Andrishak, Paulo J. Coelho, José R. Fernandes, Christian Maibohm, Jana B. Nieder   +5 more
wiley   +1 more source

Editorial: New trends in single photon emission computed tomography (SPECT)

Frontiers in Medicine, 2023
Roberto Massari, Greta S. P. Mok, Greta S. P. Mok, Greta S. P. Mok   +3 more
doaj   +1 more source

Single photon emission computed tomography: An alternative imaging modality in left ventricular evaluation

Vascular Health and Risk Management, 2008
Hulya Yalçin1,3, Sofiane Maza1, Fatih Yalçin2,41Department of Nuclear Medicine; 2Center for Cardiovascular Research, Charite University, Berlin, Germany; 3Department of Nuclear Medicine; 4Department of Cardiology, Mustafa Kemal University ...
Hulya Yalçin, Sofiane Maza, Fatih Yalçin   +2 more
doaj  

The effect of bilateral internal thoracic artery harvesting on sternal vascularity: a single-photon emission computed tomography study

, 2009
Background: We evaluated sternal vascularity after bilateral internal thoracic artery (ITA) harvesting with single-photon emission computed tomography (SPECT)
Emiroglu, Ozan, Kaya, Buelent, Cavolli, Raif, Aslan, Alp, KÜÇÜK, NURİYE ÖZLEM, ERYILMAZ, SADIK, Kaya, Kaan, Kahraman, Dogan   +7 more
core  

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

Advanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu, Moritz E. Kleybolte, Colin van Dyck, Sergey I. Vagin, Preeti Gahtori, Antonio Scarpati, Razieh Firouzihaji, Diogo A. Galico, Ulrich S. Schubert, Julianne Gibbs, Alkiviathes Meldrum   +10 more
wiley   +1 more source

Single‐Photon Emitters in Thickness‐Controlled hBN Directly Grown on Silicon Platform

Advanced Optical Materials, EarlyView.
Direct, catalyst‐free CVD growth produces thickness‐controlled hBN films on SiO2/Si without transfer. Growth temperature, film thickness, and carbon incorporation tune the density and single‐photon fraction of defect emitters while preserving the hBN lattice structure.
Yeunjeong Lee, Dobin Kim, Sofiya Karankova, Su‐Hyun Gong, Young Duck Kim, Jaehyun Park, Hyowon Moon   +6 more
wiley   +1 more source

Neurobiology of Chronic Stress-Related Psychiatric Disorders: Evidence from Molecular Imaging Studies

Chronic Stress, 2017
Chronic stress accounts for billions of dollars of economic loss annually in the United States alone, and is recognized as a major source of disability and mortality worldwide.
Margaret T. Davis, Sophie E. Holmes, Robert H. Pietrzak, Irina Esterlis   +3 more
doaj   +1 more source

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

Advanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis, Luis Carlos Sanjuan Acosta, Shubh P. Mehta, Baiyan Qi, Yang Yang, Luis Solorio, Craig J. Goergen, David J. Cappelleri   +7 more
wiley   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Modern methods of radiodiagnosis: single photon emission computed tomography and positron emission tomography

, 2007
Описаны основы, принцип однофотонной эмиссионной компьютерной томографии; устройство томографа; принципы оптимизации сбора и обработки информации; параметры, учитываемые при сборе информации; факторы, влияющие на качество изображения; алгоритмы ...
Щербина, О.В.
core   +1 more source