TY - GEN A1 - Tsakova, Vessela T. A1 - Ivanov, Svetlozar D. A1 - Lange, Ulrich A1 - Stoyanova, Aneliya A1 - Lyutov, Vladimir V. A1 - Mirsky, Vladimir M. T1 - Electroanalytical applications of nanocomposites from conducting polymers and metallic nanoparticles prepared by layer-by-layer deposition T2 - Pure and Applied Chemistry N2 - Layer-by-layer (LbL) deposition is a convenient technique for the formation of ultra-thin nanocomposite layers containing metallic nanoparticles (NPs) and conducting polymers (CPs). The advantages of this approach for producing composite layers suitable for electroanalytical applications are discussed. Examples of electroanalytical applications of LbL-deposited composites are presented. Composite layers consisting of polyaniline (PANI) and Pd NPs are used for hydrazine oxidation. The PANI–Au NPs system is applied for dopamine (DA) and uric acid (UA) oxidation. KW - conducting polymers KW - dopamine KW - electrochemistry KW - hydrazine KW - layer-by-layer deposition KW - nanoparticles KW - polyaniline (PANI) KW - uric acid Y1 - 2010 U6 - https://doi.org/10.1351/PAC-CON-10-08-01 SN - 1365-3075 VL - 83 IS - 2 SP - 345 EP - 358 ER - TY - GEN A1 - Lange, Ulrich A1 - Ivanov, Svetlozar D. A1 - Lyutov, Vladimir V. A1 - Tsakova, Vessela T. A1 - Mirsky, Vladimir M. T1 - Voltammetric and conductometric behaviour of self assembled multilayer nanocomposites of polyaniline and gold nanoparticles T2 - Journal of Solid State Electrochemistry N2 - Multilayer nanocomposites from polyaniline (PANI) and gold nanoparticles (AuNPs) were formed by layer-by-layer deposition. The formation of PANI–AuNPs multilayer structures was monitored by UV-vis absorption spectroscopy and cyclic voltammetry. Each deposited bilayer of PANI–AuNPs led to a monotonous and almost linear increase in both optical absorbance and the first current peak of PANI oxidation. The prepared multilayer nanocomposites were characterized by in situ conductivity measurements at different pH and potential and by transmission electron microscopy. Finally, chemosensitive properties of the new material based on the intrinsic affinity of gold nanoparticles were studied. Changes in the film resistance on exposure to vapors of mercury and sulfur-containing compounds were observed. KW - Polyaniline KW - Gold nanoparticles KW - Layer-by-layer deposition KW - Chemoresistor KW - In situ conductivity measurements KW - Nanocomposite Y1 - 2010 U6 - https://doi.org/10.1007/s10008-009-0922-2 SN - 1432-8488 SN - 1433-0768 VL - 14 IS - 7 SP - 1261 EP - 1268 ER -