microRNA Detection via Nanostructured Biochips for Early Cancer Diagnostics
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Published:2023-04-24
Issue:9
Volume:24
Page:7762
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ISSN:1422-0067
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Container-title:International Journal of Molecular Sciences
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language:en
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Short-container-title:IJMS
Author:
Martino Sara12, Tammaro Chiara1, Misso Gabriella1ORCID, Falco Michela13ORCID, Scrima Marianna3ORCID, Bocchetti Marco13ORCID, Rea Ilaria2ORCID, De Stefano Luca2ORCID, Caraglia Michele13ORCID
Affiliation:
1. Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy 2. Unit of Naples, National Research Council, Institute of Applied Sciences and Intelligent Systems, 80138 Naples, Italy 3. Laboratory of Molecular and Precision Oncology, Biogem Scarl, Institute of Genetic Research, 83031 Ariano Irpino, Italy
Abstract
MicroRNA (miRNA) are constituted of approximately 22 nucleotides and play an important role in the regulation of many physiological functions and diseases. In the last 10 years, an increasing interest has been recorded in studying the expression profile of miRNAs in cancer. Real time-quantitative polymerase chain reaction (RT-qPCR), microarrays, and small RNA sequencing represent the gold standard techniques used in the last 30 years as detection methods. The advent of nanotechnology has allowed the fabrication of nanostructured biosensors which are widely exploited in the diagnostic field. Nanostructured biosensors offer many advantages: (i) their small size allows the construction of portable, wearable, and low-cost products; (ii) the large surface–volume ratio enables the loading of a great number of biorecognition elements (e.g., probes, receptors); and (iii) direct contact of the recognition element with the analyte increases the sensitivity and specificity inducing low limits of detection (LOD). In this review, the role of nanostructured biosensors in miRNA detection is explored, focusing on electrochemical and optical sensing. In particular, four types of nanomaterials (metallic nanoparticles, graphene oxide, quantum dots, and nanostructured polymers) are reported for both detection strategies with the aim to show their distinct properties and applications.
Subject
Inorganic Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Computer Science Applications,Spectroscopy,Molecular Biology,General Medicine,Catalysis
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