Immunoaffinity biosensor for neurofilament light chain detection and its use in Parkinson's diagnosis

Schematic illustration of the synthesis of porous polymeric film with GMA functionality. 1) Bare gold surface, 2) Self-assembling of MAC monolayer, 3) Synthesis of GMA based porous polymeric film, 4) Removal of PVA. [Display omitted] •Constructing of generic bioinspired analytical tools.•Novel biose...

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Bibliographic Details
Published in:Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 2020-06, Vol.256, p.1-6, Article 114545
Main Authors: Özgür, Erdoğan, Uzunçakmak Uyanık, Handan, Şenel, Serap, Uzun, Lokman
Format: Article
Language:English
Subjects:
Anti-NfL antibody
Antibodies
Biomarkers
Biosensors
Brain
Cerebrospinal fluid
Diagnosis
GMA
Immunoaffinity biosensor
NfL
Parkinson's disease
Polymer films
Thin films
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Summary:Schematic illustration of the synthesis of porous polymeric film with GMA functionality. 1) Bare gold surface, 2) Self-assembling of MAC monolayer, 3) Synthesis of GMA based porous polymeric film, 4) Removal of PVA. [Display omitted] •Constructing of generic bioinspired analytical tools.•Novel biosensors for diagnosis of Parkinson's disease.•Synthesis of polymerizable amino acid derivatives.•Porous polymeric film with glycidyl methacrylate (GMA) functionality. Neurofilament light chain (NfL) has been classified as one of the most prominent biomarkers for identification of Parkinson's disease that is manifested by loss of dopaminergic neurons in the gray matter of the brain with the formation of cytoplasmic inclusion bodies in the brain tissue. Novel biosensors are needed for diagnosis of Parkinson's disease as well as monitoring of the treatment process. So, the concentration of NfL in cerebrospinal fluid has been reported to be useful in distinguishing Parkinson's disease from atypical Parkinson's syndromes. For this purpose, an electrochemical immunoaffinity biosensor having limit of detection (LOD), and limit of quantitation (LOQ) as 5.21 ng/L and 15.79 ng/L has been developed for the determination of NfL concentration. In this study, glycidyl methacrylate (GMA) functional monomer was used to form thin polymeric films on the electrode surface and the anti-NfL antibody was immobilized via covalent linkage with GMA as a biorecognition agent.
ISSN:0921-5107
1873-4944
DOI:10.1016/j.mseb.2020.114545