Ultrasensitive metadevice for biosensing
With the increase in demand for quality health screening, there is a need to improve the capability of current technology for biomolecule detection. This report introduces a metadevice that is capable of effective biomolecule detection at small amounts. Numerical experiments were carried out through...
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2021
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sg-ntu-dr.10356-1500352023-07-07T18:32:13Z Ultrasensitive metadevice for biosensing Chia, Daryl Hak Wee Luo Yu School of Electrical and Electronic Engineering luoyu@ntu.edu.sg Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics With the increase in demand for quality health screening, there is a need to improve the capability of current technology for biomolecule detection. This report introduces a metadevice that is capable of effective biomolecule detection at small amounts. Numerical experiments were carried out through Lumerical FDTD simulation with this metadevice to study the effects of graphene fermi energy level, scattering rate and electron mobility on the resonant reflection and transmission spectrum and thus, the absorption variation caused by the presence of a protein bound to the metadevice. This study gives us an insight on how a graphene plasmonic device may be able to detect biomolecules with a higher sensitivity through its molecular chemical fingerprint by detecting the biomolecule’s vibrational mode in the mid infrared region instead of using the traditional method of LSPR sensors where it mainly detects biomolecules using a change in refractive index. Bachelor of Engineering (Electrical and Electronic Engineering) 2021-06-10T07:44:27Z 2021-06-10T07:44:27Z 2021 Final Year Project (FYP) Chia, D. H. W. (2021). Ultrasensitive metadevice for biosensing. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/150035 https://hdl.handle.net/10356/150035 en A2145-201 application/pdf Nanyang Technological University |
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Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Chia, Daryl Hak Wee Ultrasensitive metadevice for biosensing |
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With the increase in demand for quality health screening, there is a need to improve the capability of current technology for biomolecule detection. This report introduces a metadevice that is capable of effective biomolecule detection at small amounts. Numerical experiments were carried out through Lumerical FDTD simulation with this metadevice to study the effects of graphene fermi energy level, scattering rate and electron mobility on the resonant reflection and transmission spectrum and thus, the absorption variation caused by the presence of a protein bound to the metadevice. This study gives us an insight on how a graphene plasmonic device may be able to detect biomolecules with a higher sensitivity through its molecular chemical fingerprint by detecting the biomolecule’s vibrational mode in the mid infrared region instead of using the traditional method of LSPR sensors where it mainly detects biomolecules using a change in refractive index. |
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Luo Yu |
author_facet |
Luo Yu Chia, Daryl Hak Wee |
format |
Final Year Project |
author |
Chia, Daryl Hak Wee |
author_sort |
Chia, Daryl Hak Wee |
title |
Ultrasensitive metadevice for biosensing |
title_short |
Ultrasensitive metadevice for biosensing |
title_full |
Ultrasensitive metadevice for biosensing |
title_fullStr |
Ultrasensitive metadevice for biosensing |
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Ultrasensitive metadevice for biosensing |
title_sort |
ultrasensitive metadevice for biosensing |
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Nanyang Technological University |
publishDate |
2021 |
url |
https://hdl.handle.net/10356/150035 |
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1772825301163704320 |