Results 21 to 30 of about 623,543 (264)

Miniaturized multicolor fluorescence imaging system integrated with a PDMS light-guide plate for biomedical investigation

npj Flexible Electronics, 2023
Miniaturized fluorescence imaging systems are promising platforms that overcome the limited use of conventional microscopes in the biomedical field. However, there are physical limitations for multicolor fluorescence imaging in existing miniaturized ...
Hyogeun Shin, Gun-Wook Yoon, Woongsun Choi, Donghwan Lee, Hoyun Choi, Deok Su Jo, Nakwon Choi, Jun-Bo Yoon, Il-Joo Cho   +8 more
doaj   +1 more source

Multi-colour fluorescence imaging of photosynthetic activityand plant stress

Photosynthetica, 2021
Imaging the four fluorescence bands of leaves, the red (F690) and far-red (F740) chlorophyll (Chl) fluorescence as well as the blue (F440) and green (F520) fluorescence of leaves and the corresponding fluorescence ratios is a fast and excellent ...
H.K. LICHTENTHALER
doaj   +1 more source

In-vivo optical detection of cancer using chlorin e6 – polyvinylpyrrolidone induced fluorescence imaging and spectroscopy

BMC Medical Imaging, 2009
Background Photosensitizer based fluorescence imaging and spectroscopy is fast becoming a promising approach for cancer detection. The purpose of this study was to examine the use of the photosensitizer chlorin e6 (Ce6) formulated in polyvinylpyrrolidone
Soo Khee, Bhuvaneswari Ramaswamy, Thong Patricia SP, Chin William WL, Heng Paul WS, Olivo Malini   +5 more
doaj   +1 more source

Assessing the development status of intraoperative fluorescence imaging for anatomy visualisation, using the IDEAL framework

BMJ Surgery, Interventions, & Health Technologies, 2022
Objectives Intraoperative fluorescence imaging is currently used in a variety of surgical fields for four main purposes: visualising anatomy, assessing tissue perfusion, identifying/localising cancer and mapping lymphatic systems.
Peter McCulloch, Norihiro Kokudo, Takeshi Aoki, Jean-Marc Regimbeau, Yasuo Sekine, Kevin White, Jacqueline van den Bos, Trevor Yeung, Luigi Boni, Michael Bouvet, Kiyoshi Hasegawa, Laurents Stassen, Takeaki Ishizawa, Sylke Schneider-Koriath, Michele Diana, Fernando Dip, Raul J Rosenthal, Jeanne Dembinski, Hiroto Nishino, Toyofumi Chen-Yoshikawa, Eren Berber, Bora Kahramangil   +21 more
doaj   +1 more source

Live-cell p53 single-molecule binding is modulated by C-terminal acetylation and correlates with transcriptional activity

Nature Communications, 2017
Both transcription binding kinetics and post-translational modifications of transcription factors are thought to play a role in the modulation of transcription.
Alessia Loffreda, Emanuela Jacchetti, Sofia Antunes, Paolo Rainone, Tiziana Daniele, Tatsuya Morisaki, Marco E. Bianchi, Carlo Tacchetti, Davide Mazza   +8 more
doaj   +1 more source

Fluorescence Imaging Topography Scanning System for intraoperative multimodal imaging. [PDF]

PLoS ONE, 2017
Fluorescence imaging is a powerful technique with diverse applications in intraoperative settings. Visualization of three dimensional (3D) structures and depth assessment of lesions, however, are oftentimes limited in planar fluorescence imaging systems.
Tri T Quang, Hye-Yeong Kim, Forrest Sheng Bao, Francis A Papay, W Barry Edwards, Yang Liu   +5 more
doaj   +1 more source

Timing and Operating Mode Design for Time-Gated Fluorescence Lifetime Imaging Microscopy

The Scientific World Journal, 2013
Steady-state fluorence imaging and time-resolved fluorescence imaging are two important areas in fluorescence imaging research. Fluorescence lifetime imaging is an absolute measurement method which is independent of excitation laser intensity ...
Chao Liu, Xinwei Wang, Yan Zhou, Yuliang Liu   +3 more
doaj   +1 more source

Ultrafast photochemistry produces superbright short-wave infrared dots for low-dose in vivo imaging

Nature Communications, 2020
Deep tissue imaging has been limited by the low brightness of probes emitting in the second near-infrared window. Here, the authors use femtosecond laser irradiation to grow a protective shell on Ag2S nanoparticles, achieving 80-fold quantum yield ...
Harrisson D. A. Santos, Irene Zabala Gutiérrez, Yingli Shen, José Lifante, Erving Ximendes, Marco Laurenti, Diego Méndez-González, Sonia Melle, Oscar G. Calderón, Enrique López Cabarcos, Nuria Fernández, Irene Chaves-Coira, Daniel Lucena-Agell, Luis Monge, Mark D. Mackenzie, José Marqués-Hueso, Callum M. S. Jones, Carlos Jacinto, Blanca del Rosal, Ajoy K. Kar, Jorge Rubio-Retama, Daniel Jaque   +21 more
doaj   +1 more source

Endosomal H₂O₂ Molecules Act as Signaling Mediators in Akt/PKB Activation

Antioxidants
Receptor-mediated endocytosis (RME) is a commonly recognized receptor internalization process of receptor degradation or recycling. However, recent studies have supported that RME is closely related to signal propagation and amplification from the plasma
Sujin Park, Chaewon Kim, Sukyeong Heo, Dongmin Kang   +3 more
doaj   +1 more source

Application of near-infrared fluorescence imaging with indocyanine green in mediastinal surgeryCentral MessagePerspective

JTCVS Techniques, 2023
Intraoperative near-infrared (NIR) fluorescence imaging has emerged in recent years and is now used in many surgical procedures. Intraoperative fluorescence imaging can guide surgeons in identifying and localizing specific structures and boundaries ...
Yilan Cao, Xiaoyi Zhao, MD, Jian Zhou, MD   +2 more
doaj   +1 more source