Functionalization of a diamond surface through N 2 and H 2 irradiation for estrogen (17β-estradiol) aptamer sensing

Evi Suaebah, Masataka Hasegawa, Jorge J. Buendia, Wenxi Fei, Maneesh Chandran, Alon Hoffman, Hiroshi Kawarada

Research output: Contribution to journalArticle

Abstract

A label-free fluorescence aptasensor for the determination of 17β-estradiol (E2) was developed. The aptasensor was prepared by the functionalization of a diamond surface using a nitrogen radical beam (NRB) system to produce amine terminals on the diamond itself. The fabrication of the sensor was performed by photolithography to produce a dot pattern, which was used as a sensing area for activated biomolecules. The supporting DNA strands were immobilized and an aptamer was hybridized to prepare a detection pair to bind with any E2 molecule, as the aptamer captures the E2 molecule naturally. The fluorescence microscopy signal was used for the detection of E2. The biomolecule activities were determined through special treatment, with three different stages evident in the fluorescence result, namely, hybridization, detection, and denaturation. When E2 was detected by the aptamer, the intensity of the fluorescence signal decreased because of the aptamer binding with the E2 molecule. E2 was detected by determining the fluorescence signal intensity of the dot pattern. When the aptamer was released from the supporting DNA and formed a complex with the E2 molecule, the intensity of the dot pattern decreased rapidly. The difference between the two signals indicated the number of E2 molecules bound to the aptamer. The proposed method is simple and powerful for the detection of small molecules with high sensitivity by utilizing the basic reaction of aptamers.

Original languageEnglish
Pages (from-to)1119-1134
Number of pages16
JournalSensors and Materials
Volume31
Issue number4
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

estrogens
Diamond
Estradiol
Diamonds
Estrogens
diamonds
Irradiation
Molecules
irradiation
fluorescence
Fluorescence
molecules
Biomolecules
DNA
deoxyribonucleic acid
Denaturation
biopolymer denaturation
Fluorescence microscopy
Photolithography
photolithography

Keywords

  • Aptamer
  • Diamond
  • Estrogen
  • Functionalization
  • Surface

ASJC Scopus subject areas

  • Instrumentation
  • Materials Science(all)

Cite this

Functionalization of a diamond surface through N 2 and H 2 irradiation for estrogen (17β-estradiol) aptamer sensing . / Suaebah, Evi; Hasegawa, Masataka; Buendia, Jorge J.; Fei, Wenxi; Chandran, Maneesh; Hoffman, Alon; Kawarada, Hiroshi.

In: Sensors and Materials, Vol. 31, No. 4, 01.01.2019, p. 1119-1134.

Research output: Contribution to journalArticle

Suaebah, Evi ; Hasegawa, Masataka ; Buendia, Jorge J. ; Fei, Wenxi ; Chandran, Maneesh ; Hoffman, Alon ; Kawarada, Hiroshi. / Functionalization of a diamond surface through N 2 and H 2 irradiation for estrogen (17β-estradiol) aptamer sensing In: Sensors and Materials. 2019 ; Vol. 31, No. 4. pp. 1119-1134.
@article{5dfe5254b6e74586a2a139fa341f103e,
title = "Functionalization of a diamond surface through N 2 and H 2 irradiation for estrogen (17β-estradiol) aptamer sensing",
abstract = "A label-free fluorescence aptasensor for the determination of 17β-estradiol (E2) was developed. The aptasensor was prepared by the functionalization of a diamond surface using a nitrogen radical beam (NRB) system to produce amine terminals on the diamond itself. The fabrication of the sensor was performed by photolithography to produce a dot pattern, which was used as a sensing area for activated biomolecules. The supporting DNA strands were immobilized and an aptamer was hybridized to prepare a detection pair to bind with any E2 molecule, as the aptamer captures the E2 molecule naturally. The fluorescence microscopy signal was used for the detection of E2. The biomolecule activities were determined through special treatment, with three different stages evident in the fluorescence result, namely, hybridization, detection, and denaturation. When E2 was detected by the aptamer, the intensity of the fluorescence signal decreased because of the aptamer binding with the E2 molecule. E2 was detected by determining the fluorescence signal intensity of the dot pattern. When the aptamer was released from the supporting DNA and formed a complex with the E2 molecule, the intensity of the dot pattern decreased rapidly. The difference between the two signals indicated the number of E2 molecules bound to the aptamer. The proposed method is simple and powerful for the detection of small molecules with high sensitivity by utilizing the basic reaction of aptamers.",
keywords = "Aptamer, Diamond, Estrogen, Functionalization, Surface",
author = "Evi Suaebah and Masataka Hasegawa and Buendia, {Jorge J.} and Wenxi Fei and Maneesh Chandran and Alon Hoffman and Hiroshi Kawarada",
year = "2019",
month = "1",
day = "1",
doi = "10.18494/SAM.2019.2231",
language = "English",
volume = "31",
pages = "1119--1134",
journal = "Sensors and Materials",
issn = "0914-4935",
publisher = "M Y U Scientific Publishing Division",
number = "4",

}

TY - JOUR

T1 - Functionalization of a diamond surface through N 2 and H 2 irradiation for estrogen (17β-estradiol) aptamer sensing

AU - Suaebah, Evi

AU - Hasegawa, Masataka

AU - Buendia, Jorge J.

AU - Fei, Wenxi

AU - Chandran, Maneesh

AU - Hoffman, Alon

AU - Kawarada, Hiroshi

PY - 2019/1/1

Y1 - 2019/1/1

N2 - A label-free fluorescence aptasensor for the determination of 17β-estradiol (E2) was developed. The aptasensor was prepared by the functionalization of a diamond surface using a nitrogen radical beam (NRB) system to produce amine terminals on the diamond itself. The fabrication of the sensor was performed by photolithography to produce a dot pattern, which was used as a sensing area for activated biomolecules. The supporting DNA strands were immobilized and an aptamer was hybridized to prepare a detection pair to bind with any E2 molecule, as the aptamer captures the E2 molecule naturally. The fluorescence microscopy signal was used for the detection of E2. The biomolecule activities were determined through special treatment, with three different stages evident in the fluorescence result, namely, hybridization, detection, and denaturation. When E2 was detected by the aptamer, the intensity of the fluorescence signal decreased because of the aptamer binding with the E2 molecule. E2 was detected by determining the fluorescence signal intensity of the dot pattern. When the aptamer was released from the supporting DNA and formed a complex with the E2 molecule, the intensity of the dot pattern decreased rapidly. The difference between the two signals indicated the number of E2 molecules bound to the aptamer. The proposed method is simple and powerful for the detection of small molecules with high sensitivity by utilizing the basic reaction of aptamers.

AB - A label-free fluorescence aptasensor for the determination of 17β-estradiol (E2) was developed. The aptasensor was prepared by the functionalization of a diamond surface using a nitrogen radical beam (NRB) system to produce amine terminals on the diamond itself. The fabrication of the sensor was performed by photolithography to produce a dot pattern, which was used as a sensing area for activated biomolecules. The supporting DNA strands were immobilized and an aptamer was hybridized to prepare a detection pair to bind with any E2 molecule, as the aptamer captures the E2 molecule naturally. The fluorescence microscopy signal was used for the detection of E2. The biomolecule activities were determined through special treatment, with three different stages evident in the fluorescence result, namely, hybridization, detection, and denaturation. When E2 was detected by the aptamer, the intensity of the fluorescence signal decreased because of the aptamer binding with the E2 molecule. E2 was detected by determining the fluorescence signal intensity of the dot pattern. When the aptamer was released from the supporting DNA and formed a complex with the E2 molecule, the intensity of the dot pattern decreased rapidly. The difference between the two signals indicated the number of E2 molecules bound to the aptamer. The proposed method is simple and powerful for the detection of small molecules with high sensitivity by utilizing the basic reaction of aptamers.

KW - Aptamer

KW - Diamond

KW - Estrogen

KW - Functionalization

KW - Surface

UR - http://www.scopus.com/inward/record.url?scp=85064677046&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85064677046&partnerID=8YFLogxK

U2 - 10.18494/SAM.2019.2231

DO - 10.18494/SAM.2019.2231

M3 - Article

VL - 31

SP - 1119

EP - 1134

JO - Sensors and Materials

JF - Sensors and Materials

SN - 0914-4935

IS - 4

ER -