Manipulating and Monitoring Biomolecular Interactions with Conducting Electroactive Polymers

Wallace, Gordon G.; Kane-Maguire, L.A.P.

doi:10.1002/1521-4095(20020704)14:13/14<953::aid-adma953>3.0.co;2-w

Cited by 122 publications

(73 citation statements)

References 46 publications

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“…[14][15][16][17] Conducting polymers possess fascinating chemical and physical properties derived from their conjugated p-electron system. [6,[18][19][20] The oxidation level of conducting polymers is readily affected by chemical and electrochemical doping/dedoping mechanisms, resulting in a sensitive and rapid response to specific analytes.…”

Section: Introductionmentioning

confidence: 99%

Conducting‐Polymer Nanomaterials for High‐Performance Sensor Applications: Issues and Challenges

Yoon

Jang

2009

Adv Funct Materials

308

185

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Owing to their promising applications in electronic and optoelectronic devices, conducting polymers have been continuously studied during the past few decades. Nevertheless, only limited progress had been made in conducting‐polymer‐based sensors until nanostructured conducting polymers were demonstrated for high‐performance signal transducers. Significant advances in the synthesis of conducting‐polymer nanomaterials have been recently reported, with enhanced sensitivity relative to their bulk counterparts. Today, conducting‐polymer nanomaterials rival metal and inorganic semiconductor nanomaterials in sensing capability. However, there are still several technological challenges to be solved for practical sensor applications of conducting‐polymer nanomaterials. Here, the key issues on conducting‐polymer nanomaterials in the development of state‐of‐the‐art sensors are discussed. Furthermore, a perspective on next‐generation sensor technology from a materials point of view is also given.

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Section: Introductionmentioning

confidence: 99%

Conducting‐Polymer Nanomaterials for High‐Performance Sensor Applications: Issues and Challenges

Yoon

Jang

2009

Adv Funct Materials

308

185

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“…Electrically conductive polymer biomaterials have been proven to be another promising alternative for developing new biodegradable conduits used for restoring the function of injured peripheral nerves or the regeneration of a nerve gap since the early 1990s by using electrical stimulation in situ. [8][9][10] Except for being effectively used for nerve regeneration, [11,12] these conductive biomaterials have also shown a capacity to facilitate the growth of other types of cells, such as endothelial cells, [13] bone cells, [14] and chromaffin cells. [15] In most cases, these conductive biomaterials are obtained in the form of blends or composites by using biodegradable polymers as matrices and an intrinsically Summary: The fabrication of novel conductive poly(DLlactide)/chitosan/polypyrrole complex membranes is reported.…”

Section: Introductionmentioning

confidence: 99%

Electrically Conductive Poly(DL‐lactide)/Chitosan/Polypyrrole Complexes

Wan

Fang

et al. 2006

Macromol. Rapid Commun.

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Summary: The fabrication of novel conductive poly(DL‐lactide)/chitosan/polypyrrole complex membranes is reported. Using poly(DL‐lactide)/chitosan blends as matrices and polypyrrole as a conductive component, several kinds of membranes with various compositions are prepared. A percolation threshold of polypyrrole as low as 1.8 wt.‐% is achieved for some membranes by controlling the chitosan proportion between 40 and 50 wt.‐%. SEM images exhibit that the membranes with a low percolation threshold show a two‐phase structure which consists of poly(DL‐lactide) and chitosan phases. Dielectric measurements indicate that there is limited miscibility between the poly(DL‐lactide) and chitosan but polypyrrole is nearly immiscible with the other two components. Based on the structural characteristics of the membranes, the polypyrrole particles are suggested to be localized at the interface between two phases.

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“…Bioelectronic interfacial materials that are both ion and electron conducting, mechanically compliant, operable within a biological environment (water) and possess unique functional moieties for the chemoselective coupling (''wiring'') of electro-active components are important for advancing neuroprosthetics and bio-hybrid energy converting systems [1][2][3][4][5]. Conducting polyelectrolytes, possessing dual electronic and ionic charge transport, may be an ideal platform for the development of interfacial materials optimized for signal transduction between traditional inorganic conductors and biological systems.…”

Section: Introductionmentioning

confidence: 99%

Installation of a reactive site for covalent wiring onto an intrinsically conductive poly(ionic liquid)

Brombosz

Lee

Firestone

2014

Reactive and Functional Polymers

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a b s t r a c tPost-polymerization radical bromination of a nanostructured poly(ionic liquid) that selectively introduces a reactive bromo-group onto the polyalkylthiophene backbone is described. Raman and FT-IR spectroscopy proves that the bromine is successfully introduced at the 3-methyl position of the thiophene and that the molecular structure of the polymer remains largely intact with only minimal chain scission detected. FT-IR and Vis-NIR spectroscopy indicates that incorporation of the bromine induces twisting (loss of co-planarity) of the polythiophene backbone. WAXS confirms retention of an ordered lamellar structure with minor lattice spacing contraction. Cyclic voltammetry confirms spectroscopic findings that the bromination reaction yields a stable p-doped polymer. The installed bromine is susceptible to nucleophilic displacement permitting the covalent attachment of other functional molecules, such as a dialkylphosphonate. Elemental analysis of such a transformation established that 100% functionalization can be achieved. These results collectively demonstrate that post-modification of a pconjugated polymer can be used to both tune electronic and photonic properties, as well as install a chemoselective attachment point for the covalent wiring of other molecules.

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Manipulating and Monitoring Biomolecular Interactions with Conducting Electroactive Polymers

Cited by 122 publications

References 46 publications

Conducting‐Polymer Nanomaterials for High‐Performance Sensor Applications: Issues and Challenges

Conducting‐Polymer Nanomaterials for High‐Performance Sensor Applications: Issues and Challenges

Electrically Conductive Poly(DL‐lactide)/Chitosan/Polypyrrole Complexes

Installation of a reactive site for covalent wiring onto an intrinsically conductive poly(ionic liquid)

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