Magnetic-responsive upconversion luminescence resonance energy transfer (LRET) biosensor for ultrasensitive detection of SARS-CoV-2 spike protein
Copyright © 2023 Elsevier B.V. All rights reserved..
Upconversion nanoparticles (UCNPs) are ideal donors for luminescence resonance energy transfer (LRET)-based biosensors due to their excellent upconversion luminescence properties. However, the relatively large size of antibodies and proteins limits the application of UCNPs-based LRET biosensors in protein detection because the large steric hindrance of proteins leads to low energy transfer efficiency between UCNPs and receptors. Herein, we developed a magnetic responsive UCNPs-based LRET biosensor to control the coupling distance between antibody-functionalized UCNPs (Ab-UCNPs) as donors and antibody-PEG linker-magnetic gold nanoparticles (Ab-PEG-MGNs) as acceptors for ultrasensitive and highly selective detection of SARS-CoV-2 spike proteins. Our results showed that this platform reversibly shortened the coupling distance between UCNPs and MGNs and enhanced the LRET signal with a 10-fold increase in the limit of detection (LOD) from 20.6 pg/mL without magnetic modulation to 2.1 pg/mL with magnetic modulation within 1 h. The finite-difference time-domain (FDTD) simulation with cyclic distance change confirmed the distance-dependent LRET efficiency under magnetic modulation, which supported the experimental results. Moreover, the applications of this magnetic-responsive UCNP-based LRET biosensor could be extended to other large-size biomolecule detection.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:248 |
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| Enthalten in: |
Biosensors & bioelectronics - 248(2024) vom: 15. Jan., Seite 115969 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Chen, Jiareng [VerfasserIn] |
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| Links: |
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| Themen: |
7440-57-5 |
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| Anmerkungen: |
Date Completed 17.01.2024 Date Revised 17.01.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.bios.2023.115969 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Copyright © 2023 Elsevier B.V. All rights reserved. | ||
| 520 | |a Upconversion nanoparticles (UCNPs) are ideal donors for luminescence resonance energy transfer (LRET)-based biosensors due to their excellent upconversion luminescence properties. However, the relatively large size of antibodies and proteins limits the application of UCNPs-based LRET biosensors in protein detection because the large steric hindrance of proteins leads to low energy transfer efficiency between UCNPs and receptors. Herein, we developed a magnetic responsive UCNPs-based LRET biosensor to control the coupling distance between antibody-functionalized UCNPs (Ab-UCNPs) as donors and antibody-PEG linker-magnetic gold nanoparticles (Ab-PEG-MGNs) as acceptors for ultrasensitive and highly selective detection of SARS-CoV-2 spike proteins. Our results showed that this platform reversibly shortened the coupling distance between UCNPs and MGNs and enhanced the LRET signal with a 10-fold increase in the limit of detection (LOD) from 20.6 pg/mL without magnetic modulation to 2.1 pg/mL with magnetic modulation within 1 h. The finite-difference time-domain (FDTD) simulation with cyclic distance change confirmed the distance-dependent LRET efficiency under magnetic modulation, which supported the experimental results. Moreover, the applications of this magnetic-responsive UCNP-based LRET biosensor could be extended to other large-size biomolecule detection | ||
| 650 | 4 | |a Journal Article | |
| 650 | 7 | |a spike protein, SARS-CoV-2 |2 NLM | |
| 650 | 7 | |a Spike Glycoprotein, Coronavirus |2 NLM | |
| 650 | 7 | |a Gold |2 NLM | |
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| 700 | 1 | |a Ho, Willis Kwun Hei |e verfasserin |4 aut | |
| 700 | 1 | |a Yin, Bohan |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Qin |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Chuanqi |e verfasserin |4 aut | |
| 700 | 1 | |a Yan, Jiaxiang |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Yingying |e verfasserin |4 aut | |
| 700 | 1 | |a Hao, Jianhua |e verfasserin |4 aut | |
| 700 | 1 | |a Yi, Changqing |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Wong, Siu Hong Dexter |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Mo |e verfasserin |4 aut | |
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