Laboratory of Integrated Biomedical Micro/Nanotechnology & Applications (LIBNA)
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Stacked graphene-Al2O3 nanopore sensors for sensitive detection of DNA and DNA-protein complexes.

Venkatesan, Bala Murali Estrada, David Banerjee, Shouvik Jin, Xiaozhong Dorgan, Vincent E Bae, Myung-Ho Aluru, Narayana R Pop, Eric Bashir, Rashid

Published in ACS nano

We report the development of a multilayered graphene-Al(2)O(3) nanopore platform for the sensitive detection of DNA and DNA-protein complexes. Graphene-Al(2)O(3) nanolaminate membranes are formed by sequentially depositing layers of graphene and Al(2)O(3), with nanopores being formed in these membranes using an electron-beam sculpting process. The ...

Electrochemistry at the edge of a single graphene layer in a nanopore.

Banerjee, Shouvik Shim, Jiwook Rivera, Jose Jin, Xiaozhong Estrada, David Solovyeva, Vita You, Xueqiu Pak, James Pop, Eric Aluru, Narayana ...

Published in ACS nano

We study the electrochemistry of single layer graphene edges using a nanopore-based structure consisting of stacked graphene and Al(2)O(3) dielectric layers. Nanopores, with diameters ranging from 5 to 20 nm, are formed by an electron beam sculpting process on the stacked layers. This leads to a unique edge structure which, along with the atomicall...

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