Results 121 to 130 of about 160,406 (282)

Thermometric Based‐Microswimmers with Chemical and Optical Engines

open access: yesAdvanced Intelligent Systems, EarlyView.
Temperature sensing at small scales is typically performed using passive luminescent particles. Here, an alternative approach is demonstrated by integrating upconversion thermometry into self‐propelled microswimmers powered by chemical fuels or light. This strategy offers a step toward dynamic thermal sensing at the microscale, relevant to both lab‐on ...
João M. Gonçalves, Katherine Villa
wiley   +1 more source

Multiphoton Fluorescence and Second Harmonic Generation Microscopy for Imaging Infectious Keratitis

open access: yes, 2008
The purpose of this study is to demonstrate the application of multiphoton fluorescence and second harmonic generation ( SHG) microscopy for the ex-vivo visualization of human corneal morphological alterations due to infectious processes.
TAN, HSIN-YUAN;SUN, YEN;LO, WEN;TENG, SHU-WEN;JEE SHIOU-HWA;LIN, WEI-CHOU;HSIAO, CHING-HSI;LIN, HSIN-CHIUNG;CHEN, YEONG-FONG;MA, DAVID HUI-KANG;HUANG, SAMUEL CHAO-MING;DONG, CHEN-YUAN;LIN, SUNG-JAN   +1 more
core  

Multimodal optoacoustic and multiphoton microscopy of human carotid atheroma

open access: yesPhotoacoustics, 2016
Carotid artery atherosclerosis is a main cause of stroke. Understanding atherosclerosis biology is critical in the development of targeted prevention and treatment strategies.
Markus Seeger   +4 more
doaj   +1 more source

Improvement of the spatial resolution in multiphoton microscopy by saturated excitation of fluorescence

open access: yes, 2015
We demonstrate, for the first time to the best of our knowledge, a significant resolution improvement in multiphoton microscopy (MPM) using saturated excitation of fluorescence.At high illumination power, saturation of the two-photon excitation ...
Anh Dung Nguyen   +11 more
core   +1 more source

Super-sensitivity multiphoton frequency-domain fluorescence lifetime imaging microscopy.

open access: yesOptics Express, 2016
We present a series of experiments that demonstrate a super-sensitive chemical imaging technique based on multiphoton frequency-domain fluorescence lifetime imaging microscopy (MPM-FD-FLIM) that shows a 2× improvement in imaging speed compared to the ...
Yide Zhang, A. Khan, G. Vigil, S. Howard
semanticscholar   +1 more source

Nanomaterial‐based immune therapeutic strategies in neurodegenerative diseases

open access: yesBMEMat, EarlyView.
This review highlights the immunomodulatory potential of nanomaterials (NMs) in treating neurodegenerative diseases (NDs). It focuses on their roles in regulating innate and adaptive immune responses to maintain immune homeostasis. By providing insights into these mechanisms, the review lays the groundwork for innovative NMs therapeutic strategies to ...
Xinru Zhou   +6 more
wiley   +1 more source

Using multiphoton fluorescence lifetime imaging to characterize liver damage and fluorescein disposition in liver in vivo

open access: yes, 2016
Liver disease is the fifth most common cause of death and unlike many other major causes of mortality, liver disease rates are increasing rather than decreasing.
Hauke Studier   +11 more
core   +1 more source

Multiphoton excited hemoglobin fluorescence and third harmonic generation for non-invasive microscopy of stored blood.

open access: yesBiomedical Optics Express, 2016
Red blood cells (RBC) in two-photon excited fluorescence (TPEF) microscopy usually appear as dark disks because of their low fluorescent signal. Here we use 15fs 800nm pulses for TPEF, 45fs 1060nm pulses for three-photon excited fluorescence, and third ...
I. Saytashev   +6 more
semanticscholar   +1 more source

Real‐time biosensing of Parkinson's disease biomarkers via NIR‐activated upconversion nanoparticles

open access: yesBMEMat, EarlyView.
Schematic illustration of the luminescence resonance energy transfer‐driven core‐shell‐shell UCNPs (cssUCNPs@Fluo4) nanoprobe for simultaneous monitoring of Ca²⁺‐temperature dynamics in Parkinson's disease models. Abstract Parkinson's disease (PD) is a progressive neurodegenerative disorder with incompletely understood pathophysiology, necessitating ...
Jialin Liu   +9 more
wiley   +1 more source

Time-resolved FRET fluorescence spectroscopy of visible fluorescent protein pairs

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.   +8 more
core   +1 more source

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