This study utilized the exceptional optical and electrical properties of polypyrrole (Ppy) to fabricate high-performance optoelectronic devices. The synthesis porous-spherical Cr2O3-Cr(OH)3-Ppy/Ppy nanocomposite thin film was achieved by preparing a second Cr2O3-Cr(OH)3-Ppy on initial Ppy using K2Cr2O7 as an oxidant. nanocomposite’s were thoroughly characterized, including XRD absorbance analys...

Polypyrrole/Co0.2CrOx, (PPy/Co0.2CrOx) composites were synthesized by polymerizing pyrrole onto the surface of cobalt chromium oxide (CrOx) in acidic media. The PPy/Co0.2CrOx composites increase the reversible capacity of the electrochemically active material up to 20%. At C/10 rate, a reversible capacity of 215 mAh/g was obtained for PPy/Co0.2CrOx composite, compared to 178 mAh/g for the virgi...

Here, we report the development of an electric field-assisted methodology for constructing 3D C2C12 cell sheets with the potential for cell surface modification. In this method, a conducting polymer, polypyrrole (Ppy), is electrodeposited via biotin doping, and then chemical conjugation of biotinylated bone morphogenetic protein 2 (BMP2) is achieved using a biotin-streptavidin cross-linker. Sub...

In this latter, the authors demonstrated a phosphorescent organic light-emitting device OLED with a lower driving voltage and a longer operation lifetime based on 2,2 -bis 5-phenyl-21,3,4 oxadazolyl biphenyl, an oxadiazole OXD derivative, as the host of the emitting layer doped with a common green-emitting phosphorescent dopant, fac-tris 2-phenylpyridine iridium Ir ppy 3 . Rather than an electr...

Octahedral chiral-at-metal Ir(III) complexes exhibit excellent structural stability and stereoselectivity in asymmetric synthesis. Selectively oxidative dehydrogenation of amino acids could be achieved by exploiting such as chiral templates. The obtaining stable imine can then utilized nucleophilic additions to generate corresponding amine compounds. In this study, a conveniently synthesized [Λ...

We demonstrated a site-specific fabrication of conducting polymer micropatterns by a novel electrochemical micropatterning technology, which utilizes a hydrodynamically focused laminar stream as a dynamic template. The resulting micropatterns in a microfluidic device is a ready-to-use sensor capable of detecting microliter amounts of organic solvent vapors. By employing two different sensing el...

Title of Thesis: CHRONOAMPEROMETRIC STUDY OF CONFORMATIONAL RELAXATION IN PPY(DBS) Bryan Jason West, Master of Science, 2008 Thesis directed by: Professor Elisabeth Smela Department of Mechanical Engineering Professor Benjamin Shapiro Department of Aerospace Engineering In conjugated polymer devices that switch from one oxidation level to another, such as artificial muscles, it is important to ...

Pyrrole monomer was chemically polymerized onto SrCO₃-Sr(OH)₂ powders to obtain SrCO₃-Sr(OH)₂/polypyrrole nanocomposite to be used as a candidate for photocatalytic degradation of methylene blue dye (MB). The material was characterized by Fourier transform infrared (FTIR) spectroscopy, UV/Vis spectroscopy, and X-ray diffraction (XRD). It was observed from transmission electronic microscopy (TEM...

Enzyme entrapped in an electrosynthesized polymer film on a high-surface-area electrode is shown to be an attractive platform for the important class of amperometric biosensors based on oxidases and electrooxidation of the H2O2 generated by enzyme-catalyzed oxidation of analyte. Two Pt electrode surface morphologies, Pt black (Pt-BLK) and Pt nanowire brush (Pt-NW) were electrodeposited from chl...

The synthesis of high-performance carbon-based materials from biomass residues for electrodes has been considered a challenge to achieve in supercapacitor-based production. In this work, activated biochar prepared as the active electrode material supercapacitors (SCs), and an effective method explored boost its capacitive performance by employing polypyrrole (PPy) dopant. results physicochemica...