Magneto-optical and thermal characteristics of magnetite nanoparticle-embedded DNA and CTMA-DNA thin films

Mallikarjuna Reddy Kesama, Byung Kil Yun, Taewoo Ha, Sreekantha Reddy Dugasani, Junyoung Son, Jae Hoon Kim, Joung Hoon Jung, Sung Ha Park

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Recently, DNA molecules embedded with magnetite (Fe3O4) nanoparticles (MNPs) drew much attention for their wide range of potential usage. With specific intrinsic properties such as low optical loss, high transparency, large band gap, high dielectric constant, potential for molecular recognition, and their biodegradable nature, the DNA molecule can serve as an effective template or scaffold for various functionalized nanomaterials. With the aid of cetyltrimethylammonium (CTMA) surfactant, DNA can be used in organic-based applications as well as water-based ones. Here, DNA and CTMA-DNA thin films with various concentrations of MNPs fabricated by the drop-casting method have been characterized by optical absorption, refractive index, Raman, and cathodoluminescence measurements to understand the binding, dispersion, chemical identification/functional modes, and energy transfer mechanisms, respectively. In addition, magnetization was measured as a function of either applied magnetic field or temperature in field cooling and zero field cooling. Saturation magnetization and blocking temperature demonstrate the importance of MNPs in DNA and CTMA-DNA thin films. Finally, we examine the thermal stabilities of MNP-embedded DNA and CTMA-DNA thin films through thermogravimetric analysis, derivative thermogravimetry, and differential thermal analysis. The unique optical, magnetic, and thermal characteristics of MNP-embedded DNA and CTMA-DNA thin films will prove important to fields such as spintronics, biomedicine, and function-embedded sensors and devices.

Original languageEnglish
Article number465703
JournalNanotechnology
Volume29
Issue number46
DOIs
Publication statusPublished - 2018 Sep 19

Fingerprint

Magnetite Nanoparticles
Magnetite nanoparticles
DNA
Thin films
Thermogravimetric analysis
Hot Temperature
Cooling
Molecular recognition
Magnetoelectronics
Optical losses
Molecules
Cathodoluminescence
Saturation magnetization
Nanostructured materials
Surface-Active Agents
Scaffolds
Energy transfer
Transparency
Differential thermal analysis
Light absorption

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Kesama, Mallikarjuna Reddy ; Yun, Byung Kil ; Ha, Taewoo ; Dugasani, Sreekantha Reddy ; Son, Junyoung ; Kim, Jae Hoon ; Jung, Joung Hoon ; Park, Sung Ha. / Magneto-optical and thermal characteristics of magnetite nanoparticle-embedded DNA and CTMA-DNA thin films. In: Nanotechnology. 2018 ; Vol. 29, No. 46.
@article{b70b84d1649246f7bea84c6b80b4e71b,
title = "Magneto-optical and thermal characteristics of magnetite nanoparticle-embedded DNA and CTMA-DNA thin films",
abstract = "Recently, DNA molecules embedded with magnetite (Fe3O4) nanoparticles (MNPs) drew much attention for their wide range of potential usage. With specific intrinsic properties such as low optical loss, high transparency, large band gap, high dielectric constant, potential for molecular recognition, and their biodegradable nature, the DNA molecule can serve as an effective template or scaffold for various functionalized nanomaterials. With the aid of cetyltrimethylammonium (CTMA) surfactant, DNA can be used in organic-based applications as well as water-based ones. Here, DNA and CTMA-DNA thin films with various concentrations of MNPs fabricated by the drop-casting method have been characterized by optical absorption, refractive index, Raman, and cathodoluminescence measurements to understand the binding, dispersion, chemical identification/functional modes, and energy transfer mechanisms, respectively. In addition, magnetization was measured as a function of either applied magnetic field or temperature in field cooling and zero field cooling. Saturation magnetization and blocking temperature demonstrate the importance of MNPs in DNA and CTMA-DNA thin films. Finally, we examine the thermal stabilities of MNP-embedded DNA and CTMA-DNA thin films through thermogravimetric analysis, derivative thermogravimetry, and differential thermal analysis. The unique optical, magnetic, and thermal characteristics of MNP-embedded DNA and CTMA-DNA thin films will prove important to fields such as spintronics, biomedicine, and function-embedded sensors and devices.",
author = "Kesama, {Mallikarjuna Reddy} and Yun, {Byung Kil} and Taewoo Ha and Dugasani, {Sreekantha Reddy} and Junyoung Son and Kim, {Jae Hoon} and Jung, {Joung Hoon} and Park, {Sung Ha}",
year = "2018",
month = "9",
day = "19",
doi = "10.1088/1361-6528/aade31",
language = "English",
volume = "29",
journal = "Nanotechnology",
issn = "0957-4484",
publisher = "IOP Publishing Ltd.",
number = "46",

}

Magneto-optical and thermal characteristics of magnetite nanoparticle-embedded DNA and CTMA-DNA thin films. / Kesama, Mallikarjuna Reddy; Yun, Byung Kil; Ha, Taewoo; Dugasani, Sreekantha Reddy; Son, Junyoung; Kim, Jae Hoon; Jung, Joung Hoon; Park, Sung Ha.

In: Nanotechnology, Vol. 29, No. 46, 465703, 19.09.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Magneto-optical and thermal characteristics of magnetite nanoparticle-embedded DNA and CTMA-DNA thin films

AU - Kesama, Mallikarjuna Reddy

AU - Yun, Byung Kil

AU - Ha, Taewoo

AU - Dugasani, Sreekantha Reddy

AU - Son, Junyoung

AU - Kim, Jae Hoon

AU - Jung, Joung Hoon

AU - Park, Sung Ha

PY - 2018/9/19

Y1 - 2018/9/19

N2 - Recently, DNA molecules embedded with magnetite (Fe3O4) nanoparticles (MNPs) drew much attention for their wide range of potential usage. With specific intrinsic properties such as low optical loss, high transparency, large band gap, high dielectric constant, potential for molecular recognition, and their biodegradable nature, the DNA molecule can serve as an effective template or scaffold for various functionalized nanomaterials. With the aid of cetyltrimethylammonium (CTMA) surfactant, DNA can be used in organic-based applications as well as water-based ones. Here, DNA and CTMA-DNA thin films with various concentrations of MNPs fabricated by the drop-casting method have been characterized by optical absorption, refractive index, Raman, and cathodoluminescence measurements to understand the binding, dispersion, chemical identification/functional modes, and energy transfer mechanisms, respectively. In addition, magnetization was measured as a function of either applied magnetic field or temperature in field cooling and zero field cooling. Saturation magnetization and blocking temperature demonstrate the importance of MNPs in DNA and CTMA-DNA thin films. Finally, we examine the thermal stabilities of MNP-embedded DNA and CTMA-DNA thin films through thermogravimetric analysis, derivative thermogravimetry, and differential thermal analysis. The unique optical, magnetic, and thermal characteristics of MNP-embedded DNA and CTMA-DNA thin films will prove important to fields such as spintronics, biomedicine, and function-embedded sensors and devices.

AB - Recently, DNA molecules embedded with magnetite (Fe3O4) nanoparticles (MNPs) drew much attention for their wide range of potential usage. With specific intrinsic properties such as low optical loss, high transparency, large band gap, high dielectric constant, potential for molecular recognition, and their biodegradable nature, the DNA molecule can serve as an effective template or scaffold for various functionalized nanomaterials. With the aid of cetyltrimethylammonium (CTMA) surfactant, DNA can be used in organic-based applications as well as water-based ones. Here, DNA and CTMA-DNA thin films with various concentrations of MNPs fabricated by the drop-casting method have been characterized by optical absorption, refractive index, Raman, and cathodoluminescence measurements to understand the binding, dispersion, chemical identification/functional modes, and energy transfer mechanisms, respectively. In addition, magnetization was measured as a function of either applied magnetic field or temperature in field cooling and zero field cooling. Saturation magnetization and blocking temperature demonstrate the importance of MNPs in DNA and CTMA-DNA thin films. Finally, we examine the thermal stabilities of MNP-embedded DNA and CTMA-DNA thin films through thermogravimetric analysis, derivative thermogravimetry, and differential thermal analysis. The unique optical, magnetic, and thermal characteristics of MNP-embedded DNA and CTMA-DNA thin films will prove important to fields such as spintronics, biomedicine, and function-embedded sensors and devices.

UR - http://www.scopus.com/inward/record.url?scp=85053862341&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85053862341&partnerID=8YFLogxK

U2 - 10.1088/1361-6528/aade31

DO - 10.1088/1361-6528/aade31

M3 - Article

C2 - 30168799

AN - SCOPUS:85053862341

VL - 29

JO - Nanotechnology

JF - Nanotechnology

SN - 0957-4484

IS - 46

M1 - 465703

ER -