Results 31 to 40 of about 163,143 (320)
Marangoni droplets of dextran in PEG solution and its motile change due to coil-globule transition of coexisting DNA [PDF]
arXiv, 2023 Motile droplets using Marangoni convection are attracting attention for their potential as cell-mimicking small robots. However, the motion of droplets relative to the internal and external environments that generate Marangoni convection has not been quantitatively described.
arxiv
Rapid Size-Controlled Synthesis of Dextran-Coated, 64Cu-Doped Iron Oxide Nanoparticles [PDF]
ACS Nano, 6, 3461-3467 (2012), 2012 Research into developing dual modality probes enabled for magnetic resonance imaging (MRI) and positron emission tomography (PET) has been on the rise recently due to the potential to combine the high resolution of MRI and the high sensitivity of PET. Current synthesis techniques for developing multimodal probes is largely hindered in part by prolonged
arxiv +1 more source
Rapid Microwave-Assisted Synthesis of Dextran-Coated Iron Oxide Nanoparticles for Magnetic Resonance Imaging [PDF]
Nanotechnology 23 (2012) 215602, 2012 Currently, magnetic iron oxide nanoparticles are the only nano-sized magnetic resonance imaging (MRI) contrast agents approved for clinical use, yet commercial manufacturing of these agents has been limited or discontinued. Though there is still widespread demand for these particles both for clinical use and research, they are difficult to obtain ...
arxiv +1 more source
Interaction of fibrinogen-magnetic nanoparticle bioconjugates with integrin reconstituted into artificial membranes [PDF]
Nanoscale, 2020, 12, 19918, 2020 Magnetic nanoparticles have a broad spectrum of biomedical applications including cell separation, diagnostics and therapy. One key issue is little explored: how do the engineered nanoparticles interact with blood components after injection? The formation of bioconjugates in the bloodstream and subsequent reactions are potentially toxic due to the ...
arxiv +1 more source
Beilstein Journal of Nanotechnology, 2016 Background: Cell tracking is a powerful tool to understand cellular migration, dynamics, homing and function of stem cell transplants. Nanoparticles represent possible stem cell tracers, but they differ in cellular uptake and side effects.
Igor M. Pongrac +6 more
doaj +1 more source
Ring DNA confers enhanced bulk elasticity and restricted macromolecular diffusion in DNA-dextran blends [PDF]
arXiv, 2021 Polymer architecture plays critical roles in both bulk rheological properties and microscale macromolecular dynamics in entangled polymer solutions and composites. Ring polymers, in particular, have been the topic of much debate due to the inability of the celebrated reptation model to capture their observed dynamics.
arxiv
Polyply: a python suite for facilitating simulations of (bio-)macromolecules and nanomaterials [PDF]
, 2021 Molecular dynamics simulations play an increasingly important role in the rational design of (nano)-materials and in the study of biomacromolecules. However, generating input files and realistic starting coordinates for these simulations is a major bottleneck, especially for high throughput protocols and for complex multi-component systems.
arxiv +1 more source
Sets of FCS experiments to quantify free diffusion coefficients in reaction-diffusion systems. The case of Ca2+ and its dyes [PDF]
Phys. Rev. E 95, 062408 (2017), 2016 Many cell signaling pathways involve the diffusion of messengers that bind/unbind to intracellular components. Quantifying their net transport rate under different conditions, then requires having separate estimates of their free diffusion coefficient and binding/unbinding rates.
arxiv +1 more source
Frontiers in Bioengineering and Biotechnology, 2022 Dextran has aroused increasingly more attention as the primary pollutant in sucrose production and storage. Although enzymatic hydrolysis is more efficient and environmentally friendly than physical methods, the utilization of dextranase in the sugar ...
Nannan Liu +9 more
doaj +1 more source
Molecular Oncology, EarlyView.Pancreatic ductal adenocarcinoma (PDAC) is a disease with very poor prognosis due to therapeutic limitations. We investigated the antitumor effects of cystatin A (CSTA) in PDAC murine models. We are first to confirm that CSTA enhances T helper type 1‐mediated antitumor effects through promotion of dendritic cells and M1 macrophage activity. CSTA can be
Alessandro Nasti +8 more
wiley +1 more source