Microshell Arrays Enhanced Sensitivity in Detection of Specific Antibody for Reduced Graphene Oxide Optical Sensor

Protein-protein interactions play an important role in the investigation of biomolecules. In this paper, we reported on the use of a reduced graphene oxide microshell (RGOM)-based optical biosensor for the determination of goat anti-rabbit IgG. The biosensor was prepared through a self-assembly of m...

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Main Authors: Wen-Shuai Jiang, Wei Xin, Shao-Nan Chen, Cun-Bo Li, Xiao-Guang Gao, Lei-Ting Pan, Zhi-Bo Liu, Jian-Guo Tian
Format: Article
Language:English
Published: MDPI AG 2017-01-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/17/2/221
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author Wen-Shuai Jiang
Wei Xin
Shao-Nan Chen
Cun-Bo Li
Xiao-Guang Gao
Lei-Ting Pan
Zhi-Bo Liu
Jian-Guo Tian
author_facet Wen-Shuai Jiang
Wei Xin
Shao-Nan Chen
Cun-Bo Li
Xiao-Guang Gao
Lei-Ting Pan
Zhi-Bo Liu
Jian-Guo Tian
author_sort Wen-Shuai Jiang
collection DOAJ
description Protein-protein interactions play an important role in the investigation of biomolecules. In this paper, we reported on the use of a reduced graphene oxide microshell (RGOM)-based optical biosensor for the determination of goat anti-rabbit IgG. The biosensor was prepared through a self-assembly of monolayers of monodisperse polystyrene microspheres, combined with a high-temperature reduction, in order to decorate the RGOM with rabbit IgG. The periodic microshells allowed a simpler functionalization and modification of RGOM with bioreceptor units, than reduced graphene oxide (RGO). With additional antibody-antigen binding, the RGOM-based biosensor achieved better real-time and label-free detection. The RGOM-based biosensor presented a more satisfactory response to goat anti-rabbit IgG than the RGO-based biosensor. This method is promising for immobilizing biomolecules on graphene surfaces and for the fabrication of biosensors with enhanced sensitivity.
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spelling doaj.art-667007576d8c40d1abc4dc6d5eb992472022-12-22T04:28:41ZengMDPI AGSensors1424-82202017-01-0117222110.3390/s17020221s17020221Microshell Arrays Enhanced Sensitivity in Detection of Specific Antibody for Reduced Graphene Oxide Optical SensorWen-Shuai Jiang0Wei Xin1Shao-Nan Chen2Cun-Bo Li3Xiao-Guang Gao4Lei-Ting Pan5Zhi-Bo Liu6Jian-Guo Tian7The Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics School and School of Physics, Nankai University, Tianjin 300071, ChinaThe Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics School and School of Physics, Nankai University, Tianjin 300071, ChinaThe Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics School and School of Physics, Nankai University, Tianjin 300071, ChinaThe Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics School and School of Physics, Nankai University, Tianjin 300071, ChinaThe Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics School and School of Physics, Nankai University, Tianjin 300071, ChinaThe Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics School and School of Physics, Nankai University, Tianjin 300071, ChinaThe Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics School and School of Physics, Nankai University, Tianjin 300071, ChinaThe Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics School and School of Physics, Nankai University, Tianjin 300071, ChinaProtein-protein interactions play an important role in the investigation of biomolecules. In this paper, we reported on the use of a reduced graphene oxide microshell (RGOM)-based optical biosensor for the determination of goat anti-rabbit IgG. The biosensor was prepared through a self-assembly of monolayers of monodisperse polystyrene microspheres, combined with a high-temperature reduction, in order to decorate the RGOM with rabbit IgG. The periodic microshells allowed a simpler functionalization and modification of RGOM with bioreceptor units, than reduced graphene oxide (RGO). With additional antibody-antigen binding, the RGOM-based biosensor achieved better real-time and label-free detection. The RGOM-based biosensor presented a more satisfactory response to goat anti-rabbit IgG than the RGO-based biosensor. This method is promising for immobilizing biomolecules on graphene surfaces and for the fabrication of biosensors with enhanced sensitivity.http://www.mdpi.com/1424-8220/17/2/221reduced graphene oxidemicroshellsoptical sensorgoat anti-rabbit IgGreal-timelabel-free
spellingShingle Wen-Shuai Jiang
Wei Xin
Shao-Nan Chen
Cun-Bo Li
Xiao-Guang Gao
Lei-Ting Pan
Zhi-Bo Liu
Jian-Guo Tian
Microshell Arrays Enhanced Sensitivity in Detection of Specific Antibody for Reduced Graphene Oxide Optical Sensor
Sensors
reduced graphene oxide
microshells
optical sensor
goat anti-rabbit IgG
real-time
label-free
title Microshell Arrays Enhanced Sensitivity in Detection of Specific Antibody for Reduced Graphene Oxide Optical Sensor
title_full Microshell Arrays Enhanced Sensitivity in Detection of Specific Antibody for Reduced Graphene Oxide Optical Sensor
title_fullStr Microshell Arrays Enhanced Sensitivity in Detection of Specific Antibody for Reduced Graphene Oxide Optical Sensor
title_full_unstemmed Microshell Arrays Enhanced Sensitivity in Detection of Specific Antibody for Reduced Graphene Oxide Optical Sensor
title_short Microshell Arrays Enhanced Sensitivity in Detection of Specific Antibody for Reduced Graphene Oxide Optical Sensor
title_sort microshell arrays enhanced sensitivity in detection of specific antibody for reduced graphene oxide optical sensor
topic reduced graphene oxide
microshells
optical sensor
goat anti-rabbit IgG
real-time
label-free
url http://www.mdpi.com/1424-8220/17/2/221
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