Results 201 to 210 of about 3,426,931 (297)

Quantitative Imaging of Water Diffusion in Brain Parenchyma at Cellular Resolution Using Stimulated Raman Scattering Microscopy

Small, EarlyView.
A multimodal multiphoton imaging framework enables high‐resolution quantification of water diffusion in brain tissue. By tracking deuterated water via stimulated Raman scattering (SRS) microscopy, this study resolves the microscopic heterogeneity of water diffusion at cellular resolution and determines apparent diffusion coefficients in health and ...
Wakana Ozaki, Ayano Suzuki, Satoshi Ii, Masato Yasui, Mutsuo Nuriya   +4 more
wiley   +1 more source

Hi-BDiSCO: folding 3D mesoscale genome structures from Hi-C data using brownian dynamics. [PDF]

Nucleic Acids Res
Li Z, Schlick T.
europepmc   +1 more source

Surface Locomotion of Cell‐Sized Microrobots Subject to Adhesive Heterogeneity

Small, EarlyView.
Chemically powered, cell‐sized microrobots exhibit translational, circular, or spiral motion through a balance among self‐phoretic propulsion, drag, gravity, and heterogeneous surface interactions. Experiments show that microrobot design and substrate conditions regulate both mobility and trajectory type.
Byung Ha Kang, Sungyun Yang, Hyeongho Min, Michael S. Strano   +3 more
wiley   +1 more source

Multi‐Scale 3D Printing of Magnetic Polymer Nanocomposites with Controlled Particle Dispersion and Hyperthermic Response

Small, EarlyView.
Dispersion of magnetic nanoflowers in trimethylolpropane ethoxylate triacrylate to generate photocurable nanocomposites is described. Particle dispersion provides processability and target AC‐field stimulated temperature increases. Complex (DLP) printed structures with submicron features are demonstrated, and the potential for stimulated release of ...
Eoin P. McKiernan, Jacek K. Wychowaniec, Danielle Winning, Shane Clerkin, Ines Martinez‐‐Chauvin, John Crean, Alexa Ennis, Colm Delaney, Larisa Florea, Dermot F. Brougham   +9 more
wiley   +1 more source

Simulation‐Guided Tracer Optimization for Magnetic Particle Spectroscopy: Interplay of Core, Shell and Anisotropy Across Physiological‐Range Viscosities for Single‐ and Dual‐Frequency Excitation

Small, EarlyView.
Single‐frequency magnetic particle spectroscopy (MPS) and frequency‐mixing (FM‐)MPS exhibit complementary viscosity‐dependent signal responses of magnetic nanoparticles (MNP). MPS differentiates predominantly blood‐associated viscosities, whereas FM‐MPS shows pronounced discriminability in cellular and tissue‐like viscosity regimes (sensitivity windows)
Mohamad Bilal Abbas, Mohamad Alaa Abbas, Timur Bikulov, Ali Mohammad Pourshahidi, Hans‐Joachim Krause, Ulrich M. Engelmann   +5 more
wiley   +1 more source

Diffusion‐Limited Microfluidic Focusing: Oscillatory Electro‐Viscoelastic Migration of Nanoparticles and Extracellular Vesicles

Small, EarlyView.
Oscillatory electro‐viscoelastic migration (Osc‐EVM) achieves focusing of particles as small as 20 nm in a 50 µm × 50 µm channel. The colloidal sample experiences sustained electro‐viscoelastic lift over extended durations, effectively prolonging the channel length to infinity by periodically reversing the flow direction and electric field.
Zikrullah Bölükkaya, Seyedamirhosein Abdorahimzadeh, Artem Zhyvolozhnyi, Anatoliy Samoylenko, Seppo Vainio, Caglar Elbuken   +5 more
wiley   +1 more source

Prediction and analysis of analytical ultracentrifugation experiments for heterogeneous macromolecules and nanoparticles based on Brownian dynamics simulation. [PDF]

Eur Biophys J, 2018
de la Torre JG, Cifre JGH, Peña AID.
europepmc   +1 more source

Detection and Inhalation Hazard Assessment of Wear Particles Arising From Abrasion of Market‐relevant Graphene Reinforced Composites

Small, EarlyView.
Abrasion of few‐layer graphene (FLG)–epoxy composites generated respirable particles in which FLG remained fully embedded, as confirmed by correlative HR‑TEM, Raman, and ToF‑SIMS analyses. Advanced lung cell models revealed no cytotoxic or inflammatory responses, and only high‑dose epoxy particles reduced mucociliary clearance.
Govind Gupta, Jimmy Vernaz, Antje Vennemann, Maike Stange, Asmus Meyer‐Plath, Servane Contal, Sarah Zehnder, Ziting Wang, Aline Chary, Stephanie Eitner, Philipp Mueller, Vera M. Kissling, Samuel Constant, Lucie Chupin, Daniel Breitenstein, Birgit Hagenhoff, Tommaso Serchi, Bernadett Boda, Martin Wiemann, Peter Wick, Tina Buerki‐Thurnherr   +20 more
wiley   +1 more source

How We Simulate Nanopores

Small Methods, EarlyView.
Nanopore technology has revolutionized single‐molecule sensing, yet it suffers from an inherent interpretive challenge. Molecular dynamics has emerged as a go‐to method for determining the relationship between the structure of translocating molecules and the nanopore current signals.
Behzad Mehrafrooz, Xavier Mleziva, Meng Xu, Melika Shekari, Christopher Maffeo, Aleksei Aksimentiev   +5 more
wiley   +1 more source

Plant‐derived nanovesicles as potential drug delivery systems for topical use: Emerging applications in dermatology and cosmetology

VIEW, EarlyView.
Plant‐derived nanovesicles (PDNVs) are naturally secreted by fruit, vegetables, seeds, leaves and other natural sources. Used as drug delivery systems, they can combine intrinsic therapeutic activity, enhanced skin permeation and cargo‐carrying capacity, suitable for dermatological and cosmetic applications including hydration, antioxidant/anti ...
Dorotea Fiore, Beatrice Pellegrini, Antonia Mancuso, Maria Chiara Cristiano, Salvatore Panza, Donatella Paolino   +5 more
wiley   +1 more source