Results 101 to 110 of about 584,548 (310)

Swept-source OCT with coherent imaging fibre bundles [PDF]

, 2009
OCT probes for endoscopy typically use a single optical fibre to deliver light to the measurement region. 2D imaging is achieved using mechanical scanning components at the probe tip.
Tatam, Ralph P., Ford, Helen D.
core   +1 more source

An ICCD camera-based time-domain ultrasound-switchable fluorescence imaging system

Scientific Reports, 2019
Fluorescence imaging in centimeter-deep tissues with high resolution is highly desirable for many biomedical applications. Recently, we have developed a new imaging modality, ultrasound-switchable fluorescence (USF) imaging, for achieving this goal.
Shuai Yu, Tingfeng Yao, Baohong Yuan
doaj   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Optical coherence tomography- a non-invasive technique applied to conservation of paintings [PDF]

, 2005
It is current practice to take tiny samples from a painting to mount and examine in cross-section under a microscope. However, since conservation practice and ethics limit sampling to a minimum and to areas along cracks and edges of paintings, which are ...
Dobre, George, Kudimov, B, Cucu, R., David Saunders, Haida Liang, Saunders, D., Pezzati L., Podoleanu, Adrian G.H., Marta Gomez Cid, Liang, H, Boris Kudimov, Saunders, D, John Cupitt, Pedro, J., George Dobre, Justin Pedro, Cid, MG, Kudimov, B., Liang, H., Podoleanu, AG, Adrian Podoleanu, Cucu, RG, Radu Cucu, Salimbeni R., Cid, M.G., Cupitt, J., Dobre, GM, Cupitt, J, Pedro, J   +28 more
core   +1 more source

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source

Assessment and optimisation of 3D optical topography for brain imaging

, 2010
Optical topography has recently evolved into a widespread research tool for non-invasively mapping blood flow and oxygenation changes in the adult and infant cortex.
Matias Correia, T.M.
core  

Deep-tissue focal fluorescence imaging with digitally time-reversed ultrasound-encoded light. [PDF]

, 2012
Fluorescence imaging is one of the most important research tools in biomedical sciences. However, scattering of light severely impedes imaging of thick biological samples beyond the ballistic regime.
Wang, Ying Min, DiMarzio, Charles A., Judkewitz, Benjamin, Yang, Changhuei, Dimarzio, Charles A   +4 more
core   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Quantum dot enabled thermal imaging of optofluidic devices

, 2012
Quantum dot thermal imaging has been used to analyse the chromatic dependence of laser-induced thermal effects inside optofluidic devices with monolithically integrated near-infrared waveguides. We demonstrate how microchannel optical local heating plays
Rodenas, Airan, Paterson, Lynn; id_orcid, Kar, Ajoy K., Choudhury, Debaditya, Ramsay, William T., Jaque, Daniel   +5 more
core   +1 more source

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

FEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada, Mina Iwaki, Kyosuke Hagiri, Rei Izumi, Masahiko Harata, Chihiro Horigome   +5 more
wiley   +1 more source