Enzyme electrodes immobilized on hetero-structured metallic nanowire array for glucose sensing

Yoon, Hargsoon; Deshpande, Devesh C.; Chintakuntla, Ritesh R.; Varadan, Vijay K.

doi:10.1117/12.695223

Cited by 3 publications

(2 citation statements)

References 5 publications

(5 reference statements)

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“…Reches and Gazit demonstrated a method to use self-assembly of aromatic dipeptides to form both vertically and horizontally aligned nanotubes [577]. Vertically aligned nanotubes can be utilized as a template to create metallic nanowires that can subsequently be used as electrochemical biosensors [578]. Matsui et al were able to metallize peptidebased nanotubes with both Ni and Cu to create metal-coated nanowires that are amenable to microelectronics [579].…”

Section: Peptide Self-assemblymentioning

confidence: 99%

Unconventional methods for forming nanopatterns

Stewart

Motala

Yao

et al. 2006

Proceedings of the Institution of Mechanical Engineers, Part N:

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Nanostructured materials have become an increasingly important theme in research, in no small part due to the potential impacts this science holds for applications in technology, including such notable areas as sensors, medicine, and high-performance integrated circuits. Conventional methods, such as the top-down approaches of projection lithography and scanning beam lithography, have been the primary means for patterning materials at the nanoscale. This article provides an overview of unconventional methods -both top-down and bottom-up approaches -for generating nanoscale patterns in a variety of materials, including methods that can be applied to fragile molecular systems that are difficult to pattern using conventional lithographic techniques. The promise, recent progress, advantages, limitations, and challenges to future development associated with each of these unconventional lithographic techniques will be discussed with consideration given to their potential for use in large-scale manufacturing.

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Section: Peptide Self-assemblymentioning

confidence: 99%

Unconventional methods for forming nanopatterns

Stewart

Motala

Yao

et al. 2006

Proceedings of the Institution of Mechanical Engineers, Part N:

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“…However, these methods do not assure highly uniform and repeatable growth of nanowires, due to non-uniform pressure and blocking of pores by fabric surface. We have proposed a lithography-assisted template bonding (LATB) method which serves a dual purpose of attaching a polycarbonate membrane with photoresist and selectively opening nanopores for nanowire growth [39,40]. Since our research needs aligned nanostructures on flexible substrates, this method is more suited, compared to using the bonding method for ceramic anodized porous membranes [32].…”

Section: Introductionmentioning

confidence: 99%

Aligned nanowire growth using lithography-assisted bonding of a polycarbonate template for neural probe electrodes

Yoon¹,

Deshpande²,

Ramachandran³

et al. 2007

Nanotechnology

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This research presents a fabrication method of vertically aligned nanowires on substrates using lithography-assisted template bonding (LATB) towards developing highly efficient electrodes for biomedical applications at low cost. A polycarbonate template containing cylindrical nanopores is attached to a substrate and the nanopores are selectively opened with a modified lithography process. Vertically aligned nanowires are grown by electrochemical deposition through these open pores on polyimide film and silicon substrates. The process of opening the nanopores is optimized to yield uniform growth of nanowires. The morphological, crystalline, and electrochemical properties of the resulting vertically aligned nanowires are discussed using scanning electron microscopy (SEM), x-ray diffraction (XRD), and electrochemical analysis tools. The potential application of this simple and inexpensive fabrication technology is discussed in the development of neural probe electrodes.

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Dual Electrode Ensembles with Core and Shell Nanoelectrodes for Dopamine Sensing Applications

et al. 2008

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This paper presents the fabrication of dual electrode ensembles for electrochemical sensing of dopamine. A new dual electrode ensemble consists of vertically aligned core nanowire electrodes and a shell electrode with a hemicylindrical nanocavity structure and submicron inter-electrode spacing between the two working electrodes. By using a 3-dimensional cavity structure of two working electrodes, collection efficiency in redox cycling of dopamine is enhanced. Initial measurement results show the ability to detect 200 mM concentration of dopamine with 69% collection efficiency on a dual electrode ensemble.

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Enzyme electrodes immobilized on hetero-structured metallic nanowire array for glucose sensing

Cited by 3 publications

References 5 publications

Unconventional methods for forming nanopatterns

Unconventional methods for forming nanopatterns

Aligned nanowire growth using lithography-assisted bonding of a polycarbonate template for neural probe electrodes

Dual Electrode Ensembles with Core and Shell Nanoelectrodes for Dopamine Sensing Applications

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