Template synthesis of organic microtubules

Martin, Charles R.; Dyke, Leon S. Van; Cai, Zhihua; Liang, Wenbin

doi:10.1021/ja00180a050

Cited by 227 publications

(115 citation statements)

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“…The results of this research may considerably be of significance as both fundamental and industrial guiding principles. Moreover, the feature of the film which consists of vertical alignment of 'needle'-like conductive polymer can be extended to nanotechnological or biotechnological applications such electronic devices [37] and substrates for biological studies [38,39]. …”

Section: Resultsmentioning

confidence: 99%

Super water-repellent poly(alkylpyrrole) films having environmental stability

Kurogi

Yan

Mayama

et al. 2007

Journal of Colloid and Interface Science

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Abstract:We present electrochemical synthesis of super water-repellent poly(alkylpyrrole) films which exhibit excellent environmental stability in terms of contact angle (> 150 o ) for water. The poly(alkylpyrrole) films synthesized under an optimized electrochemical condition consisted of thousands of micro-scaled 'needles' which densely aligned by shoulder to shoulder. The surface of the aligned 'needles' was analyzed by a box-counting method, to be a fractal structure with a dimension of 2.18.

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Section: Resultsmentioning

confidence: 99%

Super water-repellent poly(alkylpyrrole) films having environmental stability

Kurogi

Yan

Mayama

et al. 2007

Journal of Colloid and Interface Science

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“…When these polymers are synthesized (either chemically or electrochemically) within the pores of the track-etched polycarbonate membranes, the polymer preferentially nucleates and grows on the pore walls (7,9,10,33,38,39). As a result, polymeric tubules are obtained (Fig.…”

Section: Template Synthesis Of Conductive Polymersmentioning

confidence: 99%

Nanomaterials: A Membrane-Based Synthetic Approach

Martin

1994

Science

Self Cite

4,010

2,524

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Materials with nanoscopic dimensions not only have potential technological applications in areas such as device technology and drug delivery but also are of fundamental interest in that the properties of a material can change in this regime of transition between the bulk and molecular scales. In this article, a relatively new method for preparing nanomaterials, membrane-based synthesis, is reviewed. This method entails synthesis of the desired material within the pores of a nanoporous membrane. Because the membranes used contain cylindrical pores of uniform diameter, monodisperse nanocylinders of the desired material, whose dimensions can be carefully controlled, are obtained. This "template" method has been used to prepare polymers, metals, semiconductors, and other materials on a nanoscopic scale.

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“…The interesting aspect is one can have complete control over the aspect ratio (length and diameter ratio). Metallic as well as non-metallic tubules can be obtained by chemically derivating the pore/cavities walls by providing molecular anchors so that the electrodeposited metal deposits preferentially on the walls layer by layer, leading to hollow tubules when the process is terminated at a pre-estimated time interval [25]. The synthesized structures can remain either inside the host structures in the templates or they can be rendered free, and collected as ensemble.…”

Section: Negative Template Synthesismentioning

confidence: 99%

Track-etch membranes as templates enabled nano/micro technology: a review

Chakarvarti

2009

Indian J Phys

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: Many techniques are being used in order to synthesize nano/micro materials falling under the realm of nanotechnology. It need not be overemphasized that the miniaturization of devices and synthesis of new materials have a tremendous role in the development of powerful electronics as well as material based technologies in other areas but for the laws of quantum mechanics posing limitations besides the increasing cost and difficulties in manufacturing in such a small scale. The quest, therefore, for the alternative technologies, have stimulated a surge of interest in nano-meter scale materials and devices in the recent years. Metallic as well as semiconducting nano wires are the most attractive materials because of their unique properties having myriad of applications like interconnects for nano-electronics, magnetic devices, chemical and biosensors, whereas the hollow tubules are equally considered to be candidates for more potent applications -both in physical as well as biosciences. Materials' processing for nano-structured devices is indispensable to their rational design. The technique, known as "Template Synthesis", using electrochemical/electro less deposition is one of the most important processes for manufacturing nano/micro structures, nano-composites and devices and is relatively inexpensive and simple. The technique involves using membranes -ion crafted ones (popularly known as Particle Track-Etch Membranes or Nuclear Track Filters), alumite substrate membranes, besides other types of membranes as templates. The parameters viz., diameter as well as length i.e., aspect ratio, shape and wall surface traits in these membranes are controllable.In the present article a detailed review of this technique using track-etch membranes as templates in synthesis of nano/micro materials including hybrid materials and devices like field-ion emitters, resonant tunneling diodes (RTDs) etc. is presented including most of the results obtained in our laboratory.

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Template synthesis of organic microtubules

Cited by 227 publications

References 1 publication

Super water-repellent poly(alkylpyrrole) films having environmental stability

Super water-repellent poly(alkylpyrrole) films having environmental stability

Nanomaterials: A Membrane-Based Synthetic Approach

Track-etch membranes as templates enabled nano/micro technology: a review

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