Results 31 to 40 of about 2,110,693 (302)

AO DIVER: Development of a three-dimensional adaptive optics system to advance the depth limits of multiphoton imaging

APL Photonics, 2020
Multiphoton microscopy (MPM) can non-invasively measure the dynamic biochemical properties deep in scattering biological samples and has the potential to accelerate clinical research with advances in deep tissue imaging.
S. Leemans, A. Dvornikov, T. Gallagher, E. Gratton   +3 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

A versatile standard for bathochromic fluorescence based on intramolecular FRET. [PDF]

, 2011
A perylene and a terrylene tetracarboxylic bisimide dyad was prepared in which an efficient energy transfer from the former to the latter is observed. The absorption spectrum of this compound covers a broad range.
Rosenbaum, Erik, A Andreas Walter, Lennart B.-Å. Johansson, Rosenbaum, Erik,, Andreas Walter, Walter, Andreas, A Erik Rosenbaumb, Johansson, Lennart B.-A., Erik Rosenbaum, Heinz Langhals, Johansson, Lennart B-Å,, Langhals, Heinz, Lennart B. -å. Johanssonb   +12 more
core   +1 more source

Detection and Quantification of DNA by Fluorophore-Induced Plasmonic Current: A Novel Sensing Approach

Sensors
We report on the detection and quantification of aqueous DNA by a fluorophore-induced plasmonic current (FIPC) sensing method. FIPC is a mechanism described by our group in the literature where a fluorophore in close proximity to a plasmonically active ...
Daniel R. Pierce, Zach Nichols, Clifton Cunningham, Sean Avryl Villaver, Abdullah Bajwah, Samuel Oluwarotimi, Herbert Halaa, Chris D. Geddes   +7 more
doaj   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Deriving sun-induced chlorophyll fluorescence from airborne based spectrometer data [PDF]

, 2010
Sun-induced chlorophyll fluorescence (Fs) is a promising parameter for remote measuring plant photosynthesis. It has been demonstrated that Fs at cell and leaf level is strongly related to photosynthesis.
Schaepman, Michael E; https://orcid.org/, Rascher, U., Schaepman, M., Schickling, A, Schaepman, M.E., Schlapfer, D., Schläpfer, D, Rascher, U, Damm, A; https://orcid.org/, Damm, A., Schickling, A.   +10 more
core   +1 more source

Optical Manipulation of Lanthanide-Doped Nanoparticles: How to Overcome Their Limitations

Frontiers in Chemistry, 2020
Since Ashkin's pioneering work, optical tweezers have become an essential tool to immobilize and manipulate microscale and nanoscale objects. The use of optical tweezers is key for a variety of applications, including single-molecule spectroscopy ...
Elisa Ortiz-Rivero, Lucía Labrador-Páez, Paloma Rodríguez-Sevilla, Patricia Haro-González, Patricia Haro-González   +4 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Condensed tables for x-ray fluorescence analysis. [PDF]

, 1966
Condensed tables of 20 angles are provided which are simpler to use for many applications than the comprehensive tables already ...
Whittem, RN, Brockman, RH
core  

A fluctuation method to quantify in vivo fluorescence data [PDF]

, 2006
Quantitative in vivo measurements are essential for developing a predictive understanding of cellular behavior. Here we present a technique that converts observed fluorescence intensities into numbers of molecules.
Y Uri Alon, Rosenfeld, Nitzan, Swain, Peter S, Alon, Uri, Theodore J. Perkins, Perkins, Theodore J, Michael B. Elowitz, Nitzan Rosenfeld, Peter S. Swain, Elowitz, Michael B, Swain, Peter S., Perkins, Theodore J., Elowitz, Michael B.   +12 more
core   +1 more source