Results 31 to 40 of about 90,992 (266)

Enhanced photoacoustic imaging in tissue-mimicking phantoms using polydopamine-shelled perfluorocarbon emulsion droplets

Ultrasonics Sonochemistry, 2022
The current work features process parameters for the ultrasound (25 kHz)-assisted fabrication of polydopamine-shelled perfluorocarbon (PDA/PFC) emulsion droplets with bimodal (modes at 100–600 nm and 1–6 µm) and unimodal (200–600 nm) size distributions ...
Mark Louis P. Vidallon, Ekaterina Salimova, Simon A. Crawford, Boon Mian Teo, Rico F. Tabor, Alexis I. Bishop   +5 more
doaj   +1 more source

3D Printable Solid Tissue-Mimicking Material for Microwave Phantoms

2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med), 2018
Phantoms provide valuable platforms for testing of medical devices including microwave diagnostic systems. This work describes a 3D printable solid tissue-mimicking material (TMM) for the production of such phantoms. The TMM is fabricated from ABS, SEBS and Carbon Black.
McDermott, Barry, Porter, Emily, O’Halloran, Martin, Poudel, Anup, Biggs, Manus, Karode, Nireeksha S., Coffey, Austin B.   +6 more
openaire   +1 more source

Tissue mimicking materials for a multi‐imaging modality prostate phantom [PDF]

Medical Physics, 2001
Materials that simultaneously mimic soft tissue in vivo for magnetic resonance imaging (MRI), ultrasound (US), and computed tomography (CT) for use in a prostate phantom have been developed. Prostate and muscle mimicking materials contain water, agarose, lipid particles, protein, EDTA, glass beads, and thimerosal (preservative).
W D, D'Souza, E L, Madsen, O, Unal, K K, Vigen, G R, Frank, B R, Thomadsen   +5 more
openaire   +2 more sources

IBCFAP: Intra-Body Communications Five-Layers Arm Phantom Model

IEEE Access, 2019
This paper presents a methodology for the preparation of a phantom arm model to be used for evaluating the performance of intra-body communications specifically and body area networks (BANs) in general.
Ahmed E. Khorshid, Ibrahim N. Alquaydheb, Ahmed M. Eltawil, Fadi J. Kurdahi   +3 more
doaj   +1 more source

Novel Tissue Mimicking Materials for High Frequency Breast Ultrasound Phantoms

Ultrasound in Medicine & Biology, 2011
The development and acoustical characterisation of a range of novel agar-based tissue mimicking material (TMMs) for use in clinically relevant, quality assurance (QA) and anthropomorphic breast phantoms are presented. The novel agar-based TMMs described in this study are based on a comprehensive, systematic variation of the ingredients in the ...
Cannon, Louise, Fagan, Andrew, Browne, Jacinta   +2 more
openaire   +6 more sources

Tissue-mimicking materials for breast phantoms up to 50 GHz [PDF]

Physics in Medicine & Biology, 2019
Millimeter (mm)-wave imaging has been recently proposed as a new technique for breast cancer detection, based on the significant dielectric contrast between healthy and tumor tissues. Here we propose a procedure to fabricate, electromagnetically characterize and preserve realistic breast tissue-mimicking phantoms for testing mm-wave imaging prototypes.
Di Meo, Simona, Meo, Simona, Pasotti, Lorenzo, Iliopoulos, Ioannis, Pasian, Marco, Ettorre, Mauro, Zhadobov, Maxim, Matrone, Giulia   +7 more
openaire   +4 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Perspectives on tissue-like bioelectronics for neural modulation

iScience, 2023
Summary: Advances in bioelectronic implants have been offering valuable chances to interface and modulate neural systems. Potential mismatches between bioelectronics and targeted neural tissues require devices to exhibit “tissue-like” properties for ...
Changxu Sun, Zhe Cheng, Jj Abu-Halimah, Bozhi Tian   +3 more
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Fabrication and Dielectric Characterization of Stable Oil in Gelatin Breast Tissue Phantoms for Microwave Biomedical Imaging

Micromachines
Breast tissue-mimicking phantoms are essential tools for validating microwave imaging systems designed for early breast cancer detection. In this work, we report the fabrication and comprehensive characterization of oil-in-gelatin phantoms emulating ...
Héctor López-Calderón, Víctor Velázquez-Martínez, Celia Calderón-Ramón, Juan Rodrigo Laguna-Camacho, Benoit Roger-Fouconnier, Jaime Martínez-Castillo, Enrique López-Calderón, Javier Calderón-Sánchez, Jorge Chagoya-Ramírez, Armando Aguilar-Meléndez   +9 more
doaj   +1 more source