DNA rearrangement on the octadecylamine modified graphite surface by heating and ultrasonic treatment

Xiaolu Xiong; Junfeng Han; Yu Chen; Shanshan Li; Wende Xiao; Qingfan Shi

doi:10.1088/1361-6528/abb507

DNA rearrangement on the octadecylamine modified graphite surface by heating and ultrasonic treatment

Xiaolu Xiong, Junfeng Han^*, Yu Chen, Shanshan Li, Wende Xiao, Qingfan Shi^*

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The evolution of single-stranded DNA (ssDNA) assembly on octadecylamine (ODA) modified highly oriented pyrolytic graphite (HOPG) surface by heating and ultrasonic treatment has been studied for the first time. We have observed that DNA on the ODA coated HOPG surface underwent dramatic morphological changes as a function of heating and ultrasonic treatment. Ordered DNA firstly changed to random aggregates by heating and then changed to three-dimensional (3D) networks by ultrasonic treatment. This finding points to previously unknown factors that impact graphite–DNA interaction and opens new opportunities to control the deposition of DNA onto graphitic substrates. In this way, we built a cost-effective method to produce large-scale 3D ssDNA networks. All of these studies pave the way to understand the properties of DNA–solid interface, design novel nanomaterials, and improve the sensitivity of DNA biosensors.

Original language	English
Article number	055601
Journal	Nanotechnology
Volume	32
Issue number	5
DOIs	https://doi.org/10.1088/1361-6528/abb507
Publication status	Published - 11 Nov 2020

Keywords

AFM
DNA
HOPG
Heating
Octadecylamine
Ultrasonic treatment

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10.1088/1361-6528/abb507

Cite this

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title = "DNA rearrangement on the octadecylamine modified graphite surface by heating and ultrasonic treatment",

abstract = "The evolution of single-stranded DNA (ssDNA) assembly on octadecylamine (ODA) modified highly oriented pyrolytic graphite (HOPG) surface by heating and ultrasonic treatment has been studied for the first time. We have observed that DNA on the ODA coated HOPG surface underwent dramatic morphological changes as a function of heating and ultrasonic treatment. Ordered DNA firstly changed to random aggregates by heating and then changed to three-dimensional (3D) networks by ultrasonic treatment. This finding points to previously unknown factors that impact graphite–DNA interaction and opens new opportunities to control the deposition of DNA onto graphitic substrates. In this way, we built a cost-effective method to produce large-scale 3D ssDNA networks. All of these studies pave the way to understand the properties of DNA–solid interface, design novel nanomaterials, and improve the sensitivity of DNA biosensors.",

keywords = "AFM, DNA, HOPG, Heating, Octadecylamine, Ultrasonic treatment",

author = "Xiaolu Xiong and Junfeng Han and Yu Chen and Shanshan Li and Wende Xiao and Qingfan Shi",

note = "Publisher Copyright: {\textcopyright} 2020 IOP Publishing Ltd Printed in the UK",

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doi = "10.1088/1361-6528/abb507",

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T1 - DNA rearrangement on the octadecylamine modified graphite surface by heating and ultrasonic treatment

AU - Xiong, Xiaolu

AU - Han, Junfeng

AU - Chen, Yu

AU - Li, Shanshan

AU - Xiao, Wende

AU - Shi, Qingfan

PY - 2020/11/11

Y1 - 2020/11/11

N2 - The evolution of single-stranded DNA (ssDNA) assembly on octadecylamine (ODA) modified highly oriented pyrolytic graphite (HOPG) surface by heating and ultrasonic treatment has been studied for the first time. We have observed that DNA on the ODA coated HOPG surface underwent dramatic morphological changes as a function of heating and ultrasonic treatment. Ordered DNA firstly changed to random aggregates by heating and then changed to three-dimensional (3D) networks by ultrasonic treatment. This finding points to previously unknown factors that impact graphite–DNA interaction and opens new opportunities to control the deposition of DNA onto graphitic substrates. In this way, we built a cost-effective method to produce large-scale 3D ssDNA networks. All of these studies pave the way to understand the properties of DNA–solid interface, design novel nanomaterials, and improve the sensitivity of DNA biosensors.

AB - The evolution of single-stranded DNA (ssDNA) assembly on octadecylamine (ODA) modified highly oriented pyrolytic graphite (HOPG) surface by heating and ultrasonic treatment has been studied for the first time. We have observed that DNA on the ODA coated HOPG surface underwent dramatic morphological changes as a function of heating and ultrasonic treatment. Ordered DNA firstly changed to random aggregates by heating and then changed to three-dimensional (3D) networks by ultrasonic treatment. This finding points to previously unknown factors that impact graphite–DNA interaction and opens new opportunities to control the deposition of DNA onto graphitic substrates. In this way, we built a cost-effective method to produce large-scale 3D ssDNA networks. All of these studies pave the way to understand the properties of DNA–solid interface, design novel nanomaterials, and improve the sensitivity of DNA biosensors.

KW - AFM

KW - DNA

KW - HOPG

KW - Heating

KW - Octadecylamine

KW - Ultrasonic treatment

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DO - 10.1088/1361-6528/abb507

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VL - 32

JO - Nanotechnology

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DNA rearrangement on the octadecylamine modified graphite surface by heating and ultrasonic treatment

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Keywords

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