Results 71 to 80 of about 218,752 (266)

Electroactive 3D Porous Graphene Foam Impedimetric Biosensor for Ultrasensitive Detection of MCF‐7‐Cells‐Derived Extracellular Vesicles in Human Serum

Advanced Materials Technologies, EarlyView.
A label‐free impedimetric biosensor based on electroactive 3D porous graphene foam enables ultrasensitive and selective detection of CD81 protein and MCF‐7 cell‐derived extracellular vesicles in human serum. Detection limits of 0.048 fg/mL for CD81 and ∼24 EVs/mL are achieved, demonstrating a robust platform for selective, label‐free, and ...
Michael Robert Furness, Ashish Kalkal, Tia Wardlaw, Jessica Valli, Suresh Chandra Baral, Pablo Lozano Sanchez, Marco Caffio, Sudhagar Pitchaimuthu, Olga Oikonomidou, Jason Webber, Nick R. Leslie, Anitha Devadoss   +11 more
wiley   +1 more source

Mitochondria and Neuromast Tagging With Fluorescent Gallium‐Triapine Analogues: In Cellulo MP FLIM and Zebrafish Live Imaging

Advanced Science, EarlyView.
Fluorescent BODIPY‐conjugated thiosemicarbazone ligands and their Ga(III), In(III), and Fe(III) complexes, inspired by Triapine, are developed as theranostic agents. Multiphoton FLIM and confocal microscopy in cancer cells and zebrafish reveal real‐time uptake, mitochondrial localisation, and whilst spectroscopic assays indicated preserved complex ...
Megan J. Green, Michael W. Jones, Merissa Saleem, Haobo Ge, Melita Tvardauskaite, Julia Dudzic, Fernando Cortezon‐Tamarit, Rory L. Arrowsmith, Charareh Pourzand, Gabriele Kociock‐Kohn, Nicholas H. Rees, Jonathan R. Dilworth, Stephen Faulkner, Stanley W. Botchway, David Gurevich, Sofia I. Pascu   +15 more
wiley   +1 more source

Clinically Valuable Quality Control for PET/MRI Systems: Consensus Recommendation From the HYBRID Consortium

Frontiers in Physics, 2019
Quality control (QC) of medical imaging devices is essential to ensure their proper function and to gain accurate and quantitative results. Therefore, several international bodies have published QC guidelines and recommendations for a wide range of ...
Alejandra Valladares, Sahar Ahangari, Thomas Beyer, Ronald Boellaard, Ronald Boellaard, Zacharias Chalampalakis, Claude Comtat, Laura DalToso, Adam E. Hansen, Michel Koole, Jane Mackewn, Paul Marsden, Johan Nuyts, Francesco Padormo, Ronald Peeters, Sebastian Poth, Esteban Solari, Ivo Rausch   +17 more
doaj   +1 more source

Cardiac Positron Emission Tomography

Journal of the American College of Cardiology, 2009
Positron emission tomography (PET) is a powerful, quantitative imaging modality that has been used for decades to noninvasively investigate cardiovascular biology and physiology. Due to limited availability, methodologic complexity, and high costs, it has long been seen as a research tool and as a reference method for validation of other diagnostic ...
Bengel, Frank M., Higuchi, Takahiro, Javadi, Mehrbod S., Lautamäki, Riikka   +3 more
openaire   +2 more sources

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

Advanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale, Marie Celine Lefevre, Alessio Carmignani, Maria Cristina Ceccarelli, Matteo Battaglini, Attilio Marino, Gianni Ciofani   +6 more
wiley   +1 more source

Morphological and functional alterations in type 2 diabetes pancreata assessed with MRI-based metrics and [18F]FP-(+)-DTBZ PET

Frontiers in Endocrinology
ObjectiveTo determine if combining PET-derived beta-cell mass (BCM) estimates with MRI-based morphology metrics improves the prediction of beta-cell functional mass in type 2 diabetes (T2D).MethodsWe performed a retrospective analysis of 40 participants ...
Seyed Faraz Nejati, Faranak Ebrahimian Sadabad, Rui Ren, Yuan Huang, Jason Bini   +4 more
doaj   +1 more source

Prognostic value of subventricular zone involvement in relation to tumor volumes defined by fused MRI and O-(2-[18F]fluoroethyl)-L-tyrosine (FET) PET imaging in glioblastoma multiforme

Radiation Oncology, 2019
Background Subventricular zone (SVZ) involvement is associated with a dismal prognosis in patients with glioblastoma multiforme (GBM). Dual-time point (dtp) O-(2-[18F]fluoroethyl)-L-tyrosine (FET) PET/CT (PET) may be a time- and cost-effective ...
Maciej Harat, Bogdan Małkowski, Krzysztof Roszkowski   +2 more
doaj   +1 more source

Positron emission tomography: An overview

Journal of Medical Physics, 2006
The rate of glucose utilization in tumor cells is significantly enhanced as compared to normal cells and this biochemical characteristic is utilized in PET imaging using FDG as a major workhorse. The PET systems as well as cyclotrons producing positron emitting radiopharmaceuticals have undergone continuous technological refinements.
Shukla, A. K., Kumar, Utham
openaire   +2 more sources

Structural and Compositional Effects on the Scintillation Properties of Fast Emitting Metal‐Organic Frameworks

Advanced Science, EarlyView.
The crystalline structure, the atomic numbers of the constituent elementsand the size of MOF crystals each influence their photoluminescence and scintillation properties in distinct ways. Together, these factors provide valuable guidelines for designing systems with optimized performance and tunable timing characteristics, arising from the synergistic ...
Francesca Cova, Jacopo Perego, Biplab Joarder, Nobuhiro Yanai, Anna Vedda, Silvia Bracco, Angiolina Comotti, Angelo Monguzzi, Irene Villa   +8 more
wiley   +1 more source

Randomized control trial of using tongue acupuncture in autism spectrum disorder

Journal of Traditional Chinese Medical Sciences, 2014
Objective: The therapeutic approach of traditional chinese Medicine (TCM) in autism spectrum disorder (ASD) is a functional one. To study the efficacy, safety and functional brain change from the use of tongue acupuncture (TAC) on ASD children.
Virginia Chun-Nei Wong, Jie-Guang Sun, David Wai-Chow Yeung   +2 more
doaj   +1 more source