High-Affinity Detection of Alpha-Synuclein by Aptamer-Gold Conjugates on an Amine-Modified Dielectric Surface
Joint Authors
Gopinath, Subash C. B.
Lakshmipriya, Thangavel
You, Xuemei
Li, Dingan
Source
Journal of Analytical Methods in Chemistry
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-11-30
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Parkinson’s disease (PD) is a progressive health issue and influences an increasingly larger number of people, especially at older ages, affecting the central nervous system (CNS).
Alpha-synuclein is a biomarker closely correlated with the CNS and PD.
The loss of neuronal cells in the substantia nigra leads to the aggregation of alpha-synuclein in the form of Lewy bodies, and Lewy neuritis is a neuropathological hallmark.
The therapeutic approach of PD focuses on alpha-synuclein as an important substrate of PD pathology.
So far, research has focused on antialpha-synuclein to minimize the burden of extracellular alpha-synuclein in the brain, and as a consequence, it ameliorates inflammation.
Interdigitated electrode (IDE) biosensors are efficient tools for detecting various analytes and were chosen in this study to detect alpha-synuclein on amine-modified surfaces by using antiaptamer-alpha-synuclein as the probe.
In addition, a gold nanoparticle-conjugated aptamer was used to enhance the detection limit.
The limit of detection for the binding between alpha-synuclein and aptamer was found to be 10 pM.
Control experiments were performed with two closely related proteins, amyloid-beta and tau, to reveal the specificity; the results show that the aptamer only recognized alpha-synuclein.
The proposed strategy helps to identify the binding of aptamer and alpha-synuclein and provides a possible method to lower alpha-synuclein levels and inflammation in PD patients.
American Psychological Association (APA)
You, Xuemei& Gopinath, Subash C. B.& Lakshmipriya, Thangavel& Li, Dingan. 2019. High-Affinity Detection of Alpha-Synuclein by Aptamer-Gold Conjugates on an Amine-Modified Dielectric Surface. Journal of Analytical Methods in Chemistry،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1169231
Modern Language Association (MLA)
You, Xuemei…[et al.]. High-Affinity Detection of Alpha-Synuclein by Aptamer-Gold Conjugates on an Amine-Modified Dielectric Surface. Journal of Analytical Methods in Chemistry No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1169231
American Medical Association (AMA)
You, Xuemei& Gopinath, Subash C. B.& Lakshmipriya, Thangavel& Li, Dingan. High-Affinity Detection of Alpha-Synuclein by Aptamer-Gold Conjugates on an Amine-Modified Dielectric Surface. Journal of Analytical Methods in Chemistry. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1169231
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1169231