silicon has been researched along with 2-2--azino-di-(3-ethylbenzothiazoline)-6-sulfonic-acid* in 2 studies
2 other study(ies) available for silicon and 2-2--azino-di-(3-ethylbenzothiazoline)-6-sulfonic-acid
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Silicon containing ibuprofen derivatives with antioxidant and anti-inflammatory activities: An in vivo and in silico study.
There are many chronic diseases related with inflammation. The chronic inflammation can produce other problems as cancer. Therefore, it is necessary to design drugs with better anti-inflammatory activity than those in the clinic. Likewise, these could be used in chronic treatments with minimum adverse effects. The amide or ester functionality in combination with the insertion of a silyl alkyl moiety is able to improve some drug properties. In this context, the evaluation of a group of silicon containing ibuprofen derivatives (SCIDs) as antioxidants and anti-inflammatory agents is reported. Antioxidant activity was evaluated by the 2,2-Diphenyl-1-picrylhydrazyl (DPPH⨪), 2,2'-Azino-bis(3-ethylbenzothiazoline-6-sulfonic) acid (ABTS Topics: Animals; Anti-Inflammatory Agents; Antioxidants; Benzothiazoles; Biphenyl Compounds; Catalytic Domain; Computer Simulation; Cyclooxygenase 2; Ibuprofen; Iron Chelating Agents; Male; Molecular Docking Simulation; Picrates; Rats; Rats, Wistar; Silicon; Sulfonic Acids | 2017 |
Optical biosensor based on hollow integrated waveguides.
The first absorbance biosensor based on pure silicon hollow integrated waveguides is presented in this work. With the use of horseradish peroxidase (HRP) as a model recognition element, an enzymatic sensor for the measurement of hydrogen peroxide was fabricated, numerically simulated, and experimentally characterized. Waveguides with widths ranging from 50 to 80 microm, having a depth of 50 microm and lengths up to 5 mm were easily fabricated by just one photolithographic step. These were further modified by covalent immobilization of HRP using silanization chemistry. Simulation studies of the proposed approach showed a sensor linear behavior up to 300 microM H2O2 and a sensitivity of 2.7 x 10(-3) AU/microM. Experimental results were in good agreement with the simulated ones. A linear behavior between 10 and 300 microM H2O2, a sensitivity of 3 x 10(-3) AU/microM, and a signal-to-noise ratio around 20 dB were attained. Also, kinetic studies of the activity of the immobilized enzyme on the silicon waveguide surface gave an apparent Michaelis-Menten constant of 0.44 mM. The simple technology proposed in this work enables the fabrication of cost-effective, easy-to-use, miniaturized biosensor generic platforms, these being envisioned as excellent candidates for the development of lab-on-a-chip systems. Topics: Benzothiazoles; Biosensing Techniques; Enzymes, Immobilized; Horseradish Peroxidase; Hydrogen Peroxide; Kinetics; Microfluidic Analytical Techniques; Optics and Photonics; Silicon; Sulfonic Acids | 2008 |