Fabrication of Inverse Opal via Ordered Highly Charged Colloidal Spheres

Zeng, Fang; Sun, Zhaohua; Wang, Chaoyang; Ren, Biye; Liu, Xinxing; Tong, Zhen

doi:10.1021/la020114j

Cited by 55 publications

(39 citation statements)

References 23 publications

(32 reference statements)

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“…After deposition, the colloidal crystals can be dissolved in tetrahydrofuran, yielding porous conducting polymer films. The driving forces for the formation of close-packed (PS) crystals involve electrostatic interaction and lateral capillary force, and the ion diffusion during the evaporation is considered to be an important factor for the successful assembly of ordered structure on the latex surface [113].…”

Section: Closed Packed Colloid Crystal Array Templatesmentioning

confidence: 99%

Electrodeposited conductive polymers for controlled drug release: polypyrrole

Alshammary

Walsh

Herrasti

et al. 2015

J Solid State Electrochem

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Over the last 40 years, electrically conductive polymers have become well established as important electrode materials. Polyanilines, polythiophenes and polypyrroles have received particular attention due to their ease of synthesis, chemical stability, mechanical robustness and the ability to tailor their properties. Electrochemical synthesis of these materials as films have proved to be a robust and simple way to realise surface layers with controlled thickness, electrical conductivity and ion transport. In the last decade, the biomedical compatibility of electrodeposited polymers has become recognised; in particular, polypyrroles have been studied extensively and can provide an effective route to pharmaceutical drug release. The factors controlling the electrodeposition of this polymer from practical electrolytes are considered in this review including electrolyte composition and operating conditions such as the temperature and electrode potential. Voltammetry and current-time behaviour are seen to be effective techniques for film characterisation during and after their formation. The degree of take-up and the rate of drug release depend greatly on the structure, composition and oxidation state of the polymer film. Specialised aspects are considered, including galvanic cells with a Mg anode, use of catalytic nanomotors or implantable biofuel cells for a self-powered drug delivery system and nanoporous surfaces and nanostructures. Following a survey of polymer and drug types, progress in this field is summarised and aspects requiring further research are highlighted.

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Section: Closed Packed Colloid Crystal Array Templatesmentioning

confidence: 99%

Electrodeposited conductive polymers for controlled drug release: polypyrrole

Alshammary

Walsh

Herrasti

et al. 2015

J Solid State Electrochem

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show abstract

“…Modifications of the colloidal potential can be achieved either (i) chemically by selecting appropriate monomers [2][3][4][5] or by modifying the colloidal surface [6][7][8][9][10][11] or (ii) indirectly by means of additives to the liquid colloidal suspensions. A prominent example of the latter strategy is the depletion effect, which is caused by an unbalanced osmotic pressure of the polymer chains excluded from interspaces between approaching colloids.…”

Section: Introductionmentioning

confidence: 99%

Colloid–polymer mixtures in solution with refractive index matched acrylate colloids

Krämer

Scholz

Maskos

et al. 2004

Journal of Colloid and Interface Science

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“…Highly dilute dispersions are used to create isolated particles. The three most common deposition methods for polymer colloids are horizontal deposition [11], vertical deposition [12][13][14] and spin-casting [15][16][17].…”

Section: Colloidal Particle Assembly Methodsmentioning

confidence: 99%