Drug carriers that target the vascular endothelium must adhere to the endothelial vessel wall to achieve clinical stability. The particle size is a critical physical property to prescribe particle margination within biological ...
Microparticles offer a promising way to deliver multiple doses of a drug or vaccine at once, because they can be designed to release their payload at specific intervals. However, the particles, which are about the size of ...
Biochemistry
Jul 8, 2020
0
108
Versatile approaches to engineer asymmetric van der Waals interactions can expand the palette of materials development through bottom-up engineering processes. In a new study, H.A. Fuster and a research team in chemical and ...
Synthetic microparticles more intricate than some of the most complicated ones found in nature have been produced by a University of Michigan-led international team. They also investigated how that intricacy arises and devised ...
Nanophysics
Apr 9, 2020
2
889
(Phys.org) —The ability to control crystals with light and chemistry could lead to chameleon-style color-changing camouflage for vehicle bodies and other surfaces.
Condensed Matter
Apr 23, 2014
0
0
Aydogan Ozcan, whose invention of a novel lensless imaging technology for use in telemedicine could radically transform global health care, has now taken his work a step further -- or tinier: The UCLA engineer has created ...
Engineering
Apr 22, 2010
2
0
Corals feed on plankton that they catch from the seawater. Due to the increasing pollution of the oceans, they also ingest tiny plastic particles. Sometimes, the corals are unable to expel the microplastics from their bodies. ...
Plants & Animals
Feb 14, 2024
0
1
Oregon State University researchers estimate that gray whales feeding off the Oregon Coast consume up to 21 million microparticles per day, a finding informed in part by poop from the whales.
Plants & Animals
Jun 26, 2023
0
370
Cutting boards are handy tools found in most homes and restaurant kitchens. But a small-scale study in Environmental Science & Technology suggests that they are an overlooked source of micrometer-sized particles.
Environment
Jun 1, 2023
0
761
Microplastics—tiny particles generated as plastics weather and fragment—pose a growing threat to ecosystem and human health. A new laboratory study shows these threats extend beyond direct physical or chemical impacts, ...
Plants & Animals
Jan 23, 2023
0
51
Microparticles are particles between 0.1 and 100 μm in size. Commercially available microparticles are available a wide variety of materials, including those made of ceramics, glass, polymers, and metals. One encounters microparticles everyday in nature with items such as pollen, sand, and dust. Many Microparticles can be found in your kitchen as well with items such as: flour, and powdered sugar.
Microparticles have a much larger surface-to-volume ratio than at the macroscale, and thus their behavior can be quite different. For example, metal microparticles can be explosive in air.
Microsphere are spherical microparticles, and are used where consistent and predictable particle surface area is important.
In biological systems, microparticles are small membrane bound vesicles circulating in the blood derived from cells that are in contact with the bloodstram such as platelets and endothelial cells. (see Endothelial microparticle). Because they retain the signature membrane protein composition of the parent cell, microparticles carry useful information and can be detected and characterized by Flow cytometry.
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