Small diameter carbon nanopipettes

Nanotechnology
Riju SinghalYury Gogotsi

Abstract

Nanoscale multifunctional carbon probes facilitate cellular studies due to their small size, which makes it possible to interrogate organelles within living cells in a minimally invasive fashion. However, connecting nanotubes to macroscopic devices and constructing an integrated system for the purpose of fluid and electrical signal transfer is challenging, as is often the case with nanoscale components. We describe a non-catalytic chemical vapor deposition based method for batch fabrication of integrated multifunctional carbon nanopipettes (CNPs) with tip diameters much smaller (10-30 nm) than previously reported (200 nm and above) and approaching those observed for multiwalled carbon nanotubes. This eliminates the need for complicated attachment/assembly of nanotubes into nanofluidic devices. Variable tip geometries and structures were obtained by controlled deposition of carbon inside and outside quartz pipettes. We have shown that the capillary length and gas flow rate have a marked effect on the carbon deposition. This gives us a flexible protocol, useful for growing carbon layers of different thicknesses at selective locations on a glass pipette to yield a large variety of cellular probes in bulk quantities. The CNPs posse...Continue Reading

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Citations

Dec 15, 2010·Nature Nanotechnology·Riju SinghalYury Gogotsi
Jun 22, 2010·The Analyst·Celeste A MorrisLane A Baker
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Dec 21, 2013·Nanomedicine·Yang GaoYury Gogotsi
Mar 25, 2014·Analytical Chemistry·Yun YuYury Gogotsi
Sep 6, 2011·Nanomedicine : Nanotechnology, Biology, and Medicine·Zulfiya OrynbayevaYury Gogotsi
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