Results 11 to 20 of about 46,424 (265)

Determining Whether Agonist Density or Agonist Number Is More Important for Immune Activation via Micoparticle Based Assay

open access: yesFrontiers in Immunology, 2020
It is unknown if surface bound toll-like-receptor (TLR) agonists activate cells via density or total molecular number. To answer this question, we developed a TLR agonist surface conjugated polystyrene microparticle (MP) system.
Peter Deak   +3 more
doaj   +1 more source

Polymeric Particulates to Improve Oral Bioavailability of Peptide Drugs

open access: yesMolecules, 2005
Oral administration remains the most convenient way of delivering drugs. Recent advances in biotechnology have produced highly potent new molecules such as peptides, proteins and nucleic acids.
María José Blanco-Príeto   +1 more
doaj   +1 more source

On the Trail of Microparticles [PDF]

open access: yesCirculation Research, 2009
Stimulation of a variety of cell types leads to the release of submicron vesicles that bud off from the plasma membrane. These so-called microparticles (MPs) or microvesicles are defined by their small size (0.1 to 1 μm) and the presence of surface antigens from the parental cells. MPs contribute to a variety of physiological and pathological processes.
openaire   +2 more sources

Diversity of extracellular vesicles in human ejaculates revealed by cryo-electron microscopy [PDF]

open access: yesJournal of Extracellular Vesicles, 2015
Human ejaculates contain extracellular vesicles (EVs), that to a large extent are considered to originate from the prostate gland, and are often denominated “prostasomes.” These EVs are important for human fertility, for example by promoting sperm ...
Johanna L. Höög, Jan Lötvall
doaj   +1 more source

Research on a MEMS Microparticles Vacuum Chamber for Optical Levitation with a Built-In Vacuum Gauge

open access: yesPhotonics, 2022
The vacuum chamber is an important part of microparticle optical levitation technology. The traditional vacuum chamber has a large volume and many peripheral components, which cannot meet the requirements of miniaturization and on-chip optical levitation
Junji Pu   +3 more
doaj   +1 more source

Intranasal Insulin Delivery: Microparticle Formulations Consisting of Aloe vera Polysaccharides for Advanced Delivery across Excised Olfactory and Respiratory Nasal Epithelial Tissues

open access: yesApplied Sciences, 2023
Aloe vera gel and whole leaf materials, as well as polysaccharides, precipitated from the gel, have previously been shown to enhance macromolecular drug delivery across epithelial tissues.
Cassandra Kirby-Smith   +5 more
doaj   +1 more source

Role of Microparticles in Sepsis [PDF]

open access: yesSurvey of Anesthesiology, 2012
This review discusses the role of microparticles in inflammation, coagulation, vascular function, and most importantly, their physiological and pathological functions in sepsis. Microparticles are proinflammatory, procoagulant membrane vesicles released from various cell types. They are detectable in normal individuals and basal levels correlate with a
V L, Reid, N R, Webster
openaire   +3 more sources

Effect of the TiO2 Colloidal Size Distribution on the Degradation of Methylene Blue

open access: yesNanomaterials, 2023
TiO2 is the most commonly used photocatalyst in water treatment. The particle size of TiO2 is an important factor that significantly influences its activity during photocatalytic degradation.
So-Yul Kim   +3 more
doaj   +1 more source

Preparation of Spray-Dried Soy Isoflavone-Loaded Gelatin Microspheres for Enhancement of Dissolution: Formulation, Characterization and in Vitro Evaluation

open access: yesPharmaceutics, 2014
The most bioactive soy isoflavones (SI), daidzein (DAI) and genistein (GEN) have poor water solubility, which reduces their bioavailability and health benefits and limits their use in industry. The goal of this study was to develop and characterize a new
Gean Pier Panizzon   +4 more
doaj   +1 more source

Near-Field Nano-Focusing and Nano-Imaging of Dielectric Microparticle Lenses

open access: yesNanomaterials
Compared with traditional far-field objective lenses, microparticle lenses have a distinct advantage of nonobservance of the diffraction limit, which has attracted extensive attention for its application in subwavelength photolithography and super ...
Jinzhong Ling   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy