Results 11 to 20 of about 114,370 (293)

Fluorescence lifetime imaging endoscopy [PDF]

open access: yesSPIE Proceedings, 2011
We present two FLIM endoscopes for clinical imaging and in vivo cell biology. For subcellular confocal imaging we demonstrated the first confocal FLIM endomicroscope, implementing TCSPC with a Cellvizio®GI, which we have now developed as a self-contained wheeled instrument (1.0 × 0.7 m) incorporating a tunable excitation laser and acquiring images ...
Kennedy, GT   +11 more
openaire   +3 more sources

Hyperdimensional Imaging Contrast Using an Optical Fiber

open access: yesSensors, 2021
Fluorescence properties of a molecule can be used to study the structural and functional nature of biological processes. Physical properties, including fluorescence lifetime, emission spectrum, emission polarization, and others, help researchers probe a ...
Jenu V. Chacko   +4 more
doaj   +1 more source

Time-resolved FRET fluorescence spectroscopy of visible fluorescent protein pairs [PDF]

open access: yes, 2010
Förster resonance energy transfer (FRET) is a powerful method for obtaining information about small-scale lengths between biomacromolecules. Visible fluorescent proteins (VFPs) are widely used as spectrally different FRET pairs, where one VFP acts as a ...
Birch, D.J.S.   +6 more
core   +9 more sources

Investigating photoexcitation-induced mitochondrial damage by chemotherapeutic corroles using multimode optical imaging [PDF]

open access: yes, 2012
We recently reported that a targeted, brightly fluorescent gallium corrole (HerGa) is highly effective for breast tumor detection and treatment.
Farkas, Daniel L.   +7 more
core   +1 more source

IMAGING ARTIFACTS IN FLUORESCENCE LIFETIME IMAGING OPHTHALMOSCOPY

open access: yesRetina, 2021
Purpose: To investigate and quantify the influence of imaging artifacts on retinal fluorescence lifetime (FLIO) values and to provide helpful hints and tricks to avoid imaging artifacts and to improve FLIO image acquisition quality.
Chantal Dysli   +5 more
openaire   +4 more sources

Aggregation-induced emission luminogen for in vivo three-photon fluorescence lifetime microscopic imaging [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2019
Compared with visible light, near-infrared (NIR) light has deeper penetration in biological tissues. Three-photon fluorescence microscopy (3PFM) can effectively utilize the NIR excitation to obtain high-contrast images in the deep tissue.
Huwei Ni   +5 more
doaj   +1 more source

Fluorescence Lifetime Imaging and Spectroscopic Co-Validation for Protoporphyrin IX-Guided Tumor Visualization in Neurosurgery

open access: yesFrontiers in Oncology, 2021
Maximal safe resection is a key strategy for improving patient prognosis in the management of brain tumors. Intraoperative fluorescence guidance has emerged as a standard in the surgery of high-grade gliomas.
David Reichert   +17 more
doaj   +1 more source

Multimode optical imaging for translational chemotherapy: in vivo tumor detection and delineation by targeted gallium corroles [PDF]

open access: yes, 2011
We report the feasibility of tumor detection and delineation in vivo using multimode optical imaging of targeted gallium corrole (HerGa). HerGa is highly effective for targeted HER2+ tumor elimination in vivo, and it emits intense fluorescence.
Farkas, Daniel L.   +4 more
core   +1 more source

Tapered optical fibers as tools for probing magneto-optical trap characteristics [PDF]

open access: yes, 2009
We present a novel technique for measuring the characteristics of a magneto-optical trap for cold atoms by monitoring the spontaneous emission from trapped atoms coupled into the guided mode of a tapered optical nanofiber.
Chakrabarti, S.   +4 more
core   +2 more sources

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

open access: yesThe 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   +3 more
doaj   +1 more source

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