The surface conduction induced by Ar+ and the characteristics in this irradiated surface layer for plasma-polymerized pyrrole film

Tong, Zhi Shen; Wu, Mei Zhen; Pu, Tian; Zhang, Jing; Zhang, Zheng Yang; Jin, Ruo Peng; Zhu, Dapeng; Zhu, Fu Ying; Cao, De Xin; Cao, Jian

doi:10.1016/s0169-4332(97)00166-9

Cited by 6 publications

(1 citation statement)

References 32 publications

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“…Earlier studies show that the morphology, conductivity, and stability of the conducting polymer are directly affected by different deposition conditions, including the types of solvents, dopants, and electrolytes, the applied potential and current density, the temperature and pH, and the methods of electropolymerization (potentiostatically, galvanostatically, or cyclic voltammetrically) . Because pyrrole is light-sensitive, different types of radiation, including UV light, electron beam, high-energy ion beam, and γ-ray, have also been used in the preparation and characterization studies of PPy. Furthermore, investigations of the structural and other physical properties as well as the stability and reactivity of the polymers under different treatments are particularly important for developing new and improving existing technological applications of these novel materials.…”

Section: Introductionmentioning

confidence: 99%

Modification of Electronic Structure of Mesoscopic Perchlorate-Doped Polypyrrole Films by Ion Irradiation

Zhou

Leung

2003

Macromolecules

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The effects of low-energy (1-3 keV) argon ion irradiation on a 100 nm thick polypyrrole film deposited potentiostatically in an aqueous perchlorate solution have been studied by X-ray photoelectron spectroscopy (XPS). Dramatic spectral changes in the valence band structure and Cl 2p region with increasing ion impact energy and total ion dose have been observed for the perchloratedoped conductive polymer surface. Higher impact energy (3 keV) is found to be more effective in modifying the polymer backbone, particularly in the breakage and formation of terminal bonding units, while higher ion flux (for impact energy above 1 keV) appears to produce complete dissociation of the perchlorate counterions, leaving behind only Cl atoms. These observations are also consistent with the spectral changes in the C 1s, N 1s, and O 1s regions observed under different ion irradiation conditions.

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Section: Introductionmentioning

confidence: 99%

Modification of Electronic Structure of Mesoscopic Perchlorate-Doped Polypyrrole Films by Ion Irradiation

Zhou

Leung

2003

Macromolecules

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DNA detection and cell adhesion on plasma‐polymerized pyrrole

et al. 2014

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This study investigates the application of Plasma-polymerized pyrrole (ppPY) as bioactive platform for DNA immobilization and cell adhesion based on the fundamental properties of ppPY, such as chemical structure, electrochemical property, and protein adsorption. Variations in electrochemical properties of the ppPY film deposited under different plasma conditions before and after DNA immobilization were measured using electrochemical impedance spectroscopy (EIS). The equilibrium concentration of the probe DNA immobilized on the ppPY surface was deduced by detecting the variations in the surface charge transfer resistance (Rct ) of the ppPY films after DNA immobilization with different concentrations. In addition, the detection limit of the target DNA hybridization with probe DNA, the association constant, Ka , and the dissociation constant were deduced from Langmuir isotherm equations simulated using the experimental data collected by EIS. Moreover, inverted microscope was used to observe the cell adhesions onto the surface of the ppPY films prepared under different plasma conditions. Different adhesive behaviors of cells were observed, demonstrating that ppPY films could be an alternative biomaterial used as the sensitive layer for DNA sensor or cell adhesion.

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Ion beam irradiation of conjugated polymers for preparing new membrane materials—A theoretical study

Fekete

Wilusz

Karasz

et al. 2007

Separation and Purification Technology

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The surface conduction induced by Ar+ and the characteristics in this irradiated surface layer for plasma-polymerized pyrrole film

Cited by 6 publications

References 32 publications

Modification of Electronic Structure of Mesoscopic Perchlorate-Doped Polypyrrole Films by Ion Irradiation

Modification of Electronic Structure of Mesoscopic Perchlorate-Doped Polypyrrole Films by Ion Irradiation

DNA detection and cell adhesion on plasma‐polymerized pyrrole

Ion beam irradiation of conjugated polymers for preparing new membrane materials—A theoretical study

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