Encapsulation of a highly sensitive EPR active oxygen probe into sonochemically prepared microspheres
Article Abstract:
A solution of perchlorotriphenylmethyl triester (PTM-TE, a stable organic free radical) dissolved in hexamethyldisiloxane (HMDS) is encapsulated by using high-power ultrasound into a polymerized shell of bovine serum albumin (BSA). It is found that the method leads to an overall loss of EPR signal intensity from the washed suspension of microspheres and the encapsulated PTM-TE/HMDS solution is found to be sensitive to the partial pressure of oxygen in the muscle and tumor tissue of mice.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
User Contributions:
Comment about this article or add new information about this topic:
Oxygen effects on the EPR signals from wood charcoals: experimental results and the development of a model
Article Abstract:
The effect of oxygen in the EPR spectral properties of wood charcoals is measured and a model based on the properties of charcoals and EPR relaxation mechanisms is developed. EPR line broadening in these materials has correlated with char surface area and the concentration of adsorbed oxygen.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
User Contributions:
Comment about this article or add new information about this topic:
Effect of ultrasound frequency on pulsed sonolytic degradation of octylbenzene sulfonic acid
Article Abstract:
The effect of ultrasound frequency on the pulsed sonolytic degradation of octyl benzenesulfonate (OBS) is examined. The studies have shown that sonolytic degradation of OBS has depended on both the sonochemical activity and the accumulation of OBS on cavitation bubble surfaces.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2008
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Adsorption and encapsulation of fluorescent probes in nanoparticles. Friction at the nanoscale
- Abstracts: Simulation of the loading parameter in organic nonlinear optical materials. Computation and spectroelectrochemistry as complementary tools for the study of electrochemically induced charged defects in 4-[bis(4-methyphenyl)amino] phenyl oligothiophenes as model systems for hole-transporting materials
- Abstracts: Enhanced adsorption of molecules on surfaces of nanocrystalline particles. Optical and electronic anisotropy of a pi-conjugated molecular monolayer on the silicon(001) surface
- Abstracts: Stacking effect of polyfluorene on the chemical shift and electron transport. Chemical imaging by single pulse interferometric coherent anti-Stokes Raman scattering microscopy
- Abstracts: On the interpretation of quantitative experimental data on nucleation rates using classical nucleation theory