Results 41 to 50 of about 156,528 (137)

Evaluating performance in three-dimensional fluorescence microscopy [PDF]

open access: yes, 2007
In biological fluorescence microscopy, image contrast is often degraded by a high background arising from out of focus regions of the specimen. This background can be greatly reduced or eliminated by several modes of thick specimen microscopy, including ...
Chong F.K.   +6 more
core   +3 more sources

Resection of gliomas by intraoperative high⁃field MRI combined with fluorescence⁃ guided

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2021
Objective To investigate the efficacy and safety of intraoperative high⁃field MRI combined with fluorescence⁃guided glioma resection. Methods A total of 53 patients with glioma admitted to The Fisrt Bethune Hospital of Jilin University from June 2017 to ...
DONG Ze⁃ping   +4 more
doaj   +1 more source

\u3cem\u3eIn vivo\u3c/em\u3e Imaging of Human Retinal Microvasculature Using Adaptive Optics Scanning Light Ophthalmoscope Fluorescein Angiography [PDF]

open access: yes, 2013
The adaptive optics scanning light ophthalmoscope (AOSLO) allows visualization of microscopic structures of the human retina in vivo. In this work, we demonstrate its application in combination with oral and intravenous (IV) fluorescein angiography (FA ...
Carroll, Joseph   +10 more
core   +1 more source

Image registration algorithm for molecular tagging velocimetry applied to unsteady flow in Hele-Shaw cell [PDF]

open access: yes, 2013
In order to develop velocimetry methods for confined geometries, we propose to combine image registration and volumetric reconstruction from a monocular video of the draining of a Hele-Shaw cell filled with water.
Bartoli, Adrien   +5 more
core   +3 more sources

New synthetic strategies for xanthene-dye-appended cyclodextrins

open access: yesBeilstein Journal of Organic Chemistry, 2016
Xanthene dyes can be appended to cyclodextrins via an ester or amide bridge in order to switch the fluorescence on or off. This is made possible through the formation of nonfluorescent lactones or lactams as the fluorophore can reversibly cyclize.
Milo Malanga   +5 more
doaj   +1 more source

Crystal structure of 4′-allyl-4,5,6,7,2′,7′-hexachlorofluorescein allyl ester unknown solvate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2018
In the title compound, 4′-allyl-4,5,6,7,2′,7′-hexachlorofluorescein allyl ester {systematic name: prop-2-en-1-yl 2,3,4,5-tetrachloro-6-[2,7-dichloro-6-hydroxy-3-oxo-4-(prop-2-en-1-yl)-3H-xanthen-9-yl]benzoate}, C26H14Cl6O5, accompanied by unknown solvate
Lili Wang   +2 more
doaj   +1 more source

The ciliary machinery is repurposed for T cell immune synapse trafficking of LCK [PDF]

open access: yes, 2018
Upon engagement of the T cell receptor with an antigen-presenting cell, LCK initiates TCR signaling by phosphorylating its activation motifs. However, the mechanism of LCK activation specifically at the immune synapse is a major question.
Castro Sanchez, Patricia   +6 more
core   +1 more source

Avaliação da viabilidade de intestino delgado com isquemia experimental pelo uso de fluoresceína sódica em eqüinos Evaluation of the small intestine viability with experimental ischemia by the use of sodic fluorescein in horses

open access: yesCiência Rural, 1997
Com o objetivo de testar o sal sódico de fluoresceína na indicação da viabilidade intestinal em casos de processos isquêmicos do intestino delgado de eqüinos, desenvolveu-se um modelo isquêmico através de ligadura artério-venosa durante 120 minutos ...
Augusto Sampaio, Ney Luis Pippi
doaj   +1 more source

Cine recording ophthalmoscope [PDF]

open access: yes, 1972
Camera system provides accurate photographic recording during acceleration of centrifuge and permits immediate observation of dynamic changes in retinal circulation by a closed-circuit television loop. System consists of main camera, remote control unit,
Fitzgerald, J. W.
core   +1 more source

Matrix metalloproteinase-9 activity and a downregulated Hedgehog pathway impair blood-brain barrier function in an in vitro model of CNS tuberculosis [PDF]

open access: yes, 2017
Central nervous system tuberculosis (CNS TB) has a high mortality and morbidity associated with severe inflammation. The blood-brain barrier (BBB) protects the brain from inflammation but the mechanisms causing BBB damage in CNS TB are uncharacterized ...
Brilha, Sara   +5 more
core   +3 more sources

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