Template-Synthesized Nanotubes for Chemical Separations and Analysis

Wirtz, Marc; Parker, Matthew; Kobayashi, Yoshio; Martin, Charles R.

doi:10.1002/1521-3765(20020816)8:16<3572::aid-chem3572>3.0.co;2-9

Cited by 63 publications

(40 citation statements)

References 11 publications

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“…Advances in polymer [136] and materials [137] chemistries have greatly expanded the design options for nanomaterial composites in the past few years, and synthesis of materials using nanostructured templates has emerged as a versatile technique to generate ordered nanostructures [138]. Templates consisting of microor mesoporous membranes [139,140], zeolites [141], and crystalline colloidal arrays [142][143][144] have been used, and many elaborate electronic, mechanical, or optical structures have resulted.…”

Section: Composites Of Porous Si and Polymersmentioning

confidence: 99%

Porous silicon in drug delivery devices and materials☆

Anglin

Cheng

Freeman

et al. 2008

Advanced Drug Delivery Reviews

807

618

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Porous Si exhibits a number of properties that make it an attractive material for controlled drug delivery applications: The electrochemical synthesis allows construction of tailored pore sizes and volumes that are controllable from the scale of microns to nanometers; a number of convenient chemistries exist for the modification of porous Si surfaces that can be used to control the amount, identity, and in vivo release rate of drug payloads and the resorption rate of the porous host matrix; the material can be used as a template for organic and biopolymers, to prepare composites with a designed nanostructure; and finally, the optical properties of photonic structures prepared from this material provide a self-reporting feature that can be monitored in vivo. This paper reviews the preparation, chemistry, and properties of electrochemically prepared porous Si or SiO 2 hosts relevant to drug delivery applications.

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Section: Composites Of Porous Si and Polymersmentioning

confidence: 99%

Porous silicon in drug delivery devices and materials☆

Anglin

Cheng

Freeman

et al. 2008

Advanced Drug Delivery Reviews

807

618

View full text Add to dashboard Cite

show abstract

“…Metallic nanostructures with hollow interiors or tailored porosity, such as nanotubes [1,2] and nanoporous membranes [3,4], possess intriguing chemicophysical properties applicable in important fields including catalysis [5], biological labeling [6], surface enhanced Raman scattering (SERS) [7], thermal therapeutics [8,9], and electrogenerated chemiluminescence (ECL) [10 12]. Therefore, great efforts have been devoted to the construction of such novel nanostructures with designed shape and geometry.…”

Section: Introductionmentioning

confidence: 99%

“…Template-based synthesis is one of the most widely used methods for the fabrication of one-dimensional (1-D) nanostructures [13 15]. For example, gold nanotubes [1,2] and nanoparticle nanotubes [16,17] can be fabricated by templating porous alumina membranes using different surface modifi cation techniques. Recently, based on a simple galvanic replacement reaction, Xia and co-workers have successfully synthesized a series of metallic hollow nanostructures with interesting properties, including nanoboxes, nanocages, and nanotubes [18 20].…”

Section: Introductionmentioning

confidence: 99%

Au-Ag alloy nanoporous nanotubes

Tian

et al. 2009

Nano Res.

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Metallic nanostructures with hollow interiors or tailored porosity represent a special class of attractive materials with intriguing chemicophysical properties. This paper presents the fabrication of a new type of metallic nanoporous nanotube structure based on a facile and effective combination of nanocrystal growth and surface modifi cation. By controlling the individual steps involved in this process, such as nanowire growth, surface modifi cation, thermal diffusion, and dealloying, one-dimensional (1-D) metallic nanostructures can be prepared with tailored structural features and pre-designed functionalities. These tubular and porous nanostructures show distinct optical properties, such as tunable absorption in the near-infrared region, and enhanced capability for electrochemiluminescence signal amplification, which make them particularly desirable as novel 1-D nanocarriers for biomedical, drug delivery and sensing applications.

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“…Not only is their size important, but also their final geometry and microstructure. For this particular study, one of the most common forms of template synthesis that employs polycarbonate track-etched nanopore membranes was used [26,27]. These membranes are commercially available and range in nanopore diameters from 10 nm up to 12 lm.…”

Section: Introductionmentioning

confidence: 99%

A nucleation and growth study of gold nanowires and nanotubes in polymeric membranes

2006

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Through the use of a technique known as template synthesis, it has become possible to synthesize a variety of different materials in the form of nanowires or nanotubes. Dependent upon which type of template is used, either randomly or regularly dispersed nanowires or nanotubes with a wide variety of nanopore diameters and lengths can be created. In this experiment, gold nanowires and nanotubes have been synthesized with diameters of 30, 100, and 800 nm in polycarbonate membranes. The kinetics and characteristics of growth can be greatly altered, dependent upon what operational parameters are employed during deposition. This study looks at the different growth factors that need to be considered when employing the template synthesis approach. These factors include the final expected geometry, the distribution of nucleation sites, the grain size distribution, and the deposition rate.

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Template-Synthesized Nanotubes for Chemical Separations and Analysis

Cited by 63 publications

References 11 publications

Porous silicon in drug delivery devices and materials☆

Porous silicon in drug delivery devices and materials☆

Au-Ag alloy nanoporous nanotubes

A nucleation and growth study of gold nanowires and nanotubes in polymeric membranes

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