Results 51 to 60 of about 9,244,583 (282)

Single-Shot Smartphone-Based Quantitative Phase Imaging Using a Distorted Grating. [PDF]

open access: yesPLoS ONE, 2016
Blood testing has been used as an essential tool to diagnose diseases for decades. Recently, there has been a rapid developing trend in using Quantitative Phase Imaging (QPI) methods for blood cell screening.
Zhenyu Yang, Qiwen Zhan
doaj   +1 more source

Nonredundant Raman imaging using optical eigenmodes [PDF]

open access: yes, 2014
We thank funding from the UK Engineering and Physical Sciences Research Council namely grant EP/J01771X/1 and EU FP7 grant FAMOS.Various forms of imaging schemes have emerged over the last decade that are based on correlating variations in incident ...
Herrington, C. Simon   +18 more
core   +1 more source

Iterative projection meets sparsity regularization: towards practical single-shot quantitative phase imaging with in-line holography

open access: yesLight: Advanced Manufacturing, 2023
Holography provides access to the optical phase. The emerging compressive phase retrieval approach can achieve in-line holographic imaging beyond the information-theoretic limit or even from a single shot by exploring the signal priors.
Yunhui Gao, Liangcai Cao
doaj   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Quantitative Phase Imaging Camera With a Weak Diffuser

open access: yesFrontiers in Physics, 2019
We introduce the quantitative phase imaging camera with a weak diffuser (QPICWD) as an effective scheme of quantitative phase imaging (QPI) based on normal microscope platforms.
Linpeng Lu   +16 more
doaj   +1 more source

Single-Shot On-Axis Fizeau Polarization Phase-Shifting Digital Holography for Complex-Valued Dynamic Object Imaging

open access: yesPhotonics, 2022
Digital holography assisted with inline phase-shifting methods has the benefit of a large field of view and a high resolution, but it is limited in dynamic imaging due to sequential detection of multiple holograms.
Hanzi Liu   +5 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Quantitative phase imaging based on polarization encoding

open access: yesOptics Express, 2022
Most optical characterization methods rely on measuring the complex optical fields emerging from the interaction between light and material systems. Nevertheless, inherent scattering and absorption cause ambiguities in both interferometric and noninterferometric attempts to measure phase.
Shengwei Cui   +4 more
openaire   +2 more sources

On Phase-Based Imaging of Eddy Current Nondestructive Evaluation [PDF]

open access: yes, 1995
Eddy current NDE has been used for many years to effectively detect defects in conducting materials [1]. However, a major limitation associated with the technique is that imaging techniques are generally qualitative classification schemes which rely on ...
Lusk, Mark   +7 more
core   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

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