Results 1 to 10 of about 450,779 (167)

A simulation study investigating potential diffusion-based MRI signatures of microstrokes

open access: yesScientific Reports, 2021
Recent studies suggested that cerebrovascular micro-occlusions, i.e. microstokes, could lead to ischemic tissue infarctions and cognitive deficits. Due to their small size, identifying measurable biomarkers of these microvascular lesions remains a major ...
Rafat Damseh   +8 more
doaj   +1 more source

Development of a Smartphone-Based Optical Device to Measure Hemoglobin Concentration Changes for Remote Monitoring of Wounds

open access: yesBiosensors, 2021
Telemedicine (TM) can revolutionize the impact of diabetic wound care management, along with tools for remote patient monitoring (RPM). There are no low-cost mobile RPM devices for TM technology to provide comprehensive (visual and physiological ...
Kacie Kaile   +2 more
doaj   +1 more source

Cu-doped TiO2 nanoparticles improve local antitumor immune activation and optimize dendritic cell vaccine strategies

open access: yesJournal of Nanobiotechnology, 2023
Nanoparticle-mediated cancer immunotherapy holds great promise, but more efforts are needed to obtain nanoformulations that result in a full scale activation of innate and adaptive immune components that specifically target the tumors.
Evelien Hesemans   +13 more
doaj   +1 more source

Gold nanoparticle delivery to solid tumors: a multiparametric study on particle size and the tumor microenvironment

open access: yesJournal of Nanobiotechnology, 2022
Nanoparticle (NP) delivery to solid tumors remains an actively studied field, where several recent studies have shed new insights into the underlying mechanisms and the still overall poor efficacy.
Mukaddes Izci   +13 more
doaj   +1 more source

A direct comparison between a MEMS deformable mirror and a liquid crystal spatial light modulator in signal-based wavefront sensing [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2013
Aberrations degrade the performance of optical systems in terms of resolution and signal-to-noise ratio. This work explores the feasibility of a signal-based wavefront sensor, which employs a search algorithm to estimate Zernike coefficients of given ...
Jewel A. R., Akondi V., Vohnsen B.
doaj   +1 more source

High-speed three-dimensional photoacoustic computed tomography for preclinical research and clinical translation

open access: yesNature Communications, 2021
Photoacoustic imaging has generated increasing interest for uses in preclinical research and clinical translation. Here the authors develop a three-dimensional photoacoustic computed tomography system that allows for multipurpose imaging of biological ...
Li Lin   +9 more
doaj   +1 more source

Principle and Implementation of Stokes Vector Polarization Imaging Technology

open access: yesApplied Sciences, 2022
Compared with traditional imaging methods, polarization imaging has its unique advantages in many directions and has great development prospects. It is one of the hot spots of research and development at home and abroad. Based on the polarization imaging
Yong Wang   +12 more
doaj   +1 more source

SMoLR: visualization and analysis of single-molecule localization microscopy data in R

open access: yesBMC Bioinformatics, 2019
Background Single-molecule localization microscopy is a super-resolution microscopy technique that allows for nanoscale determination of the localization and organization of proteins in biological samples.
Maarten W. Paul   +6 more
doaj   +1 more source

Optical Imaging of the Heart [PDF]

open access: yesCirculation Research, 2004
Optical techniques have revolutionized the investigation of cardiac cellular physiology and advanced our understanding of basic mechanisms of electrical activity, calcium homeostasis, and metabolism. Although optical methods are widely accepted and have been at the forefront of scientific discoveries, they have been primarily applied at ...
Igor R, Efimov   +2 more
openaire   +2 more sources

Enhanced super-resolution microscopy by extreme value based emitter recovery

open access: yesScientific Reports, 2021
Super-resolution localization microscopy allows visualization of biological structure at nanoscale resolution. However, the presence of heterogeneous background can degrade the nanoscale resolution by tens of nanometers and introduce significant image ...
Hongqiang Ma   +3 more
doaj   +1 more source

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