Biologically active nanocomposite of DNA-PbS nanoparticles: A new material for non-volatile memory devices

Biologically active nanocomposite of DNA-PbS nanoparticles: A new material for non-volatile... Article history: Composite films of deoxyribonucleic acid (DNA) and lead sulfide (PbS) nanoparticles are prepared to Received 22 June 2017 fabricate biological memory devices. A simple solution based electrografting is developed to deposit Received in revised form 21 July 2017 2 large (few cm ) uniform films of DNA:PbS on conducting substrates. The films are studied by X-ray Accepted 1 August 2017 photoelectron spectroscopy, field emission SEM, FTIR and optical spectroscopy to understand their prop- Available online 5 August 2017 erties. Charge transport measurements are carried out on ITO-DNA:PbS-metal junctions by cyclic voltage scans, electrical bi-stability is observed with ON/OFF ratio more than ∼10 times with good stability and Keywords: endurance, such performance being rarely reported. The observed results are interpreted in the light of DNA strong electrostatic binding of nanoparticles and DNA stands, which leads doping of Pb atoms into DNA. Lead sulfide nanoparticles As a result, these devices exhibit negative differential resistance (NDR) effect due to oxidation of doped Electrografting metal atoms. These composites can be the potential materials in the development of new generation Electrical switching Non-volatile memory devices non-volatile memory devices. © 2017 Elsevier B.V. All rights reserved. 1. Introduction used for DNA sequencing, disease http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

Biologically active nanocomposite of DNA-PbS nanoparticles: A new material for non-volatile memory devices

Loading next page...
 
/lp/elsevier/biologically-active-nanocomposite-of-dna-pbs-nanoparticles-a-new-4ZKDEVgUEo
Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2017.08.001
Publisher site
See Article on Publisher Site

Abstract

Article history: Composite films of deoxyribonucleic acid (DNA) and lead sulfide (PbS) nanoparticles are prepared to Received 22 June 2017 fabricate biological memory devices. A simple solution based electrografting is developed to deposit Received in revised form 21 July 2017 2 large (few cm ) uniform films of DNA:PbS on conducting substrates. The films are studied by X-ray Accepted 1 August 2017 photoelectron spectroscopy, field emission SEM, FTIR and optical spectroscopy to understand their prop- Available online 5 August 2017 erties. Charge transport measurements are carried out on ITO-DNA:PbS-metal junctions by cyclic voltage scans, electrical bi-stability is observed with ON/OFF ratio more than ∼10 times with good stability and Keywords: endurance, such performance being rarely reported. The observed results are interpreted in the light of DNA strong electrostatic binding of nanoparticles and DNA stands, which leads doping of Pb atoms into DNA. Lead sulfide nanoparticles As a result, these devices exhibit negative differential resistance (NDR) effect due to oxidation of doped Electrografting metal atoms. These composites can be the potential materials in the development of new generation Electrical switching Non-volatile memory devices non-volatile memory devices. © 2017 Elsevier B.V. All rights reserved. 1. Introduction used for DNA sequencing, disease

Journal

Applied Surface ScienceElsevier

Published: Jan 1, 2018

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off