TY - GEN A1 - Mirsky, Vladimir M. A1 - Kulikov, Valentin A1 - Wolfbeis, Otto S. T1 - Complete system for combinatorial synthesis and functional investigation of conductive polymers T2 - American Chemical Society PMSE Preprints N2 - Complete system for combinatorial electrochemical synthesis and functional characterization of combinatorial libraries formed by different polymers and polymeric structures will be presented. Control of electrical potential of single electrode groups consisting of four electrodes (designed for 4-point measurements ) on the array comprising 96 such electrode groups provides addressable electrochemical polymer synthesis on the defined electrodes. After polymerization, electrical characteristics of polymers or/and polymer/electrode contacts and influence of potential analytes on these characteristic are measured. Final data analysis provides complete analytically relevant information on the investigated thin polymer layers or multilayer polymer structures: absolute and relative sensitivity, response time, reversibility, reproducibility, regeneration kinetics, linearity or binding constant. Examples of applications for the development of gas-sensitive (co)polymers and optimization of their sensitive properties and polymer/metal contacts will be presented. Y1 - 2005 VL - 93 SP - 1053 ER - TY - CHAP A1 - Mirsky, Vladimir M. A1 - Kulikov, Valentin A1 - Hao, Qingli A1 - Wolfbeis, Otto S. T1 - Application of combinatorial electropolymerization to the development of chemical Sensors T2 - Combinatorial and artificial intelligence methods in materials science II, symposium held December 1 - 4, 2003, Boston, Massachusetts, U.S.A. N2 - Combinatorial electropolymerization with electrical addressing was realized on the array of 96 electrode groups, each from four electrodes. The polymer synthesis was combined with subsequent high-throughput investigation of analytical properties of synthesized polymers. Two-and four-point techniques were applied simultaneously to measure electrical properties of synthesized polymers and contact resistances between electrodes and polymers and modifications of these parameters on addition of analyte. The system was used for development of sensitive materials for detection of gaseous hydrogen chloride. Y1 - 2004 SN - 1-55899-742-3 U6 - https://doi.org/10.1557/PROC-804-JJ4.1 SP - 111 EP - 116 PB - Materials Research Society CY - Warrendale, Pa. ER - TY - GEN A1 - Kulikov, Valentin A1 - Mirsky, Vladimir M. A1 - Delaney, Tetyana L. A1 - Donoval, Daniel A1 - Koch, Alexander W. A1 - Wolfbeis, Otto S. T1 - High-throughput analysis of bulk and contact conductance of polymer layers prepared by combinatorial electropolymerization T2 - Measurement Science and Technology N2 - An approach for high-throughput analysis of bulk and contact conductance of polymer layers is described and evaluated. The approach, based on s24-technique (simultaneous two- and four-point conductance measurements), was realized as a high-throughput method and applied for investigation of conductive polymers on an array of interdigital platinum electrodes. Several examples demonstrate distinctive influence of combinatorially varied conditions of polymer synthesis (polymerization charge, content of copolymers) as well as chemical treatment of the synthesized polymers in bulk and contact resistance of metal/polymer/metal systems. The developed high-throughput s24-technique can be widely applied to material research for investigation of bulk and contact electrical properties. Y1 - 2005 U6 - https://doi.org/10.1088/0957-0233/16/1/013 SN - 1361-6501 SN - 0957-0233 VL - 16 IS - 1 SP - 95 EP - 99 ER - TY - GEN A1 - Hao, Qingli A1 - Kulikov, Valentin A1 - Mirsky, Vladimir M. T1 - Investigation of contact and bulk resistance of conductive polymers by simultaneous two- and four-point technique T2 - Sensors and Actuators B: Chemical N2 - A conventional resistance measured by two-point technique includes bulk and contact components. The contact resistance can be excluded by a four-point technique. A simultaneous use of the two- and four-point techniques allows to separate the total resistance between two electrodes for the contact and bulk parts. This approach has been used to analyze electrical coupling between metal electrodes of interdigitated structures and chemically sensitive coating formed by polyaniline (PANI). The polymer layers were deposited by electropolymerization on bare gold and platinum electrodes as well as on gold electrodes precoated by a self-assembled monolayer of 4-aminothiophenol. An exposure of the PANI films formed on interdigitated structures to gaseous HCl displays proportional changes of resistance measured by the two- and four- point techniques for platinum electrodes and for the precoated gold electrode, while a strong deviation from this proportionality was observed for the gold electrodes without precoating. The results demonstrate a high contribution of the contact resistance between PANI and bare gold electrodes into the resistance measured by the two-point technique. This contribution is small and therefore not measurable for bare platinum electrodes or for gold electrodes coated by 4-aminothiophenol. KW - Chemoresistor KW - Conductometric chemosensor KW - Electropolymerization KW - Four-point technique KW - Gas sensor Y1 - 2003 U6 - https://doi.org/10.1016/S0925-4005(03)00456-8 SN - 0925-4005 VL - 94 IS - 3 SP - 352 EP - 357 ER - TY - CHAP A1 - Mirsky, Vladimir M. A1 - Kulikov, Valentin ED - Potyrailo, Radislav A. ED - Amis, Eric J. T1 - Combinatorial electropolymerization: concept, equipment and applications T2 - High Throughput Analysis: A Tool for Combinatorial Materials Science Y1 - 2003 SN - 0-306-47758-0 SP - 431 EP - 446 PB - Kluwer Academic Publishers CY - New York ER - TY - GEN A1 - Mirsky, Vladimir M. A1 - Kulikov, Valentin A1 - Hao, Qingli A1 - Wolfbeis, Otto S. T1 - Multiparameter High Throughput Characterization of Combinatorial Chemical Microarrays of Chemosensitive Polymers T2 - Macromolecular Rapid Communications N2 - High throughput characterization of combinatorial libraries demands a compromise between completeness of the study and reasonable investigation time. This compromise can be found by the development of test protocols consisting of the minimal number of the most informative measurements. Multiparameter high throughput characterization of sensitive materials is described. The parameters include response time, regeneration time, reversibility, reproducibility, sensitivity, linearity. The approach was applied for characterization of conductometric gas-sensitive polymer materials. Chemical microarrays prepared by electrochemical synthesis of polymers on platinum electrodes. Y1 - 2004 U6 - https://doi.org/10.1002/marc.200300210 SN - 1521-3927 VL - 25 IS - 1 SP - 253 EP - 258 ER - TY - GEN A1 - Kulikov, Valentin A1 - Mirsky, Vladimir M. T1 - Equipment for combinatorial electrochemical polymerization and high-throughput investigation of electrical properties of the synthesized polymers T2 - Measurement Science and Technology N2 - The first automated system for combinatorial synthesis and high throughput investigation of electrical properties of conductive polymers is described. The equipment provides a polymerization of defined mixtures of monomers into a thin layer on the addressed electrodes of an electrode array followed by measurements of current–voltage characteristics. The electrodes have an interdigital configuration, specially designed for four-point measurements. A programmed addition of gases or liquids provides automated investigation of the influence of different substances on the synthesized polymers. The results of an experimental test of the system are presented. This equipment can be used for synthesis and electrical characterization of conductive polymers and multilayer polymer structures, for development of chemical sensors, organic electronic devices and other thin film functional structures. KW - elect ropolymerization KW - chemical sensors KW - biological sensors KW - organic semiconductors KW - combinatorial approach KW - high-throughput screening Y1 - 2004 U6 - https://doi.org/10.1088/0957-0233/15/1/007 SN - 1361-6501 SN - 0957-0233 VL - 15 IS - 1 SP - 49 EP - 54 ER -