OBJECTIVES Our objective was to test the hypothesis that the ultrasound pulsing interval (PI), microbubble injection site and microvascular pressure significantly influence the transport of 100-nm microspheres to muscle through extravasation sites created by the destruction of microbubbles with ultrasound. BACKGROUND Microbubbles show promise as targeted drug and gene delivery agents; however...

Measurement of regional myocardial blood flow (RMBF) is crucial in experimental studies of myocardial ischemia and reperfusion in dogs. The standard measurement technique uses radioactive microspheres; however, not all institutions are able to dispose of radioactive waste and therefore cannot make use of this method. We tested a new, nonradioactive microsphere, labeled with colors instead of nu...

OBJECTIVE To determine whether several topical compounds and other chemical entities are able to diminish the surface hydrophobicity of yeast cells. METHOD Hydrophobicity of yeast cells was determined by binding styrene microspheres to the surface of untreated yeast or yeast pre-incubated with various substances with potential for cell surface modification. The degree of microsphere adherence...

In an open, randomised crossover study enteric coated microspheres of pancreatin were compared with a standard preparation of enteric coated pancreatin over two consecutive 28 day treatment periods in 23 adults with steatorrhoea due to cystic fibrosis. Lipase intake was equal to the patients' previous requirements and was the same during the two months. Patients performed 72 hour faecal collect...

The localization of fluorescent microspheres is often employed for drift correction and image registration in single molecule microscopy, and is commonly carried out by fitting a point spread function to the image of the given microsphere. The mismatch between the point spread function and the image of the microsphere, however, calls into question the suitability of this localization approach. ...

Floating drug delivery systems are mainly expected to remain buoyant in gastric contents and consequently enhance the bioavailability of drugs Microsphere is loaded with a their outer polymer shells was prepared by novel emulsion-solvent diffusion method. It floated continuously over surface acidic dissolution media containing surfactant for invitro time 12 hours. microspheres ofloxacin were o/...

Citation: Bera T, Malcuit C, Clements RJ and Hegmann E (2016) Role of Surfactant during Microemulsion Photopolymerization for the Creation of Three-Dimensional Liquid Crystal Elastomer Microsphere Spatial Cell Scaffolds. Front. Mater. 3:31. doi: 10.3389/fmats.2016.00031 role of surfactant during Microemulsion Photopolymerization for the creation of Three-Dimensional liquid crystal elastomer Mic...

UNLABELLED The 50% normal-tissue complication probability (NTCP) after lobar irradiation of the liver results in highly variable biologic effective doses depending on the modality used: a biologic effective dose for 50% (BED50) of 115, 93, and 250 Gy for external-beam radiotherapy, resin microsphere radioembolization, and glass microsphere radioembolization, respectively. This misunderstood pro...

PURPOSE To investigate material density, flow, and viscosity effects on microsphere distribution within an in vitro model designed to simulate hepatic arteries. MATERIALS AND METHODS A vascular flow model was used to compare distribution of glass and resin surrogates in a clinically derived flow range (60-120 mL/min). Blood-mimicking fluid (BMF) composed of glycerol and water (20%-50% vol/vol...

A mid-IR amplifier consisting of a tapered chalcogenide fiber coupled to an Er3þ-doped chalcogenide microsphere has been optimized via a particle swarm optimization (PSO) approach. More precisely, a dedicated three-dimensional numerical model, based on the coupled mode theory and solving the rate equations, has been integrated with the PSO procedure. The rate equations have included the main tr...