ArticleSensors (Basel, Switzerland)2018
An Advanced, Silicon-Based Substrate for Sensitive Nucleic Acids Detection.
Article in Sensors (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 8 citations in OpenAlex.
- Biosensor Based on pSi-SU-8-GQD Heterostructures for Enhanced Viral Detection by Dual Signal Amplification Strategy.ACS omega · 2026Article
- pH-Dependent Conformational Plasticity of Monoclonal Antibodies at the SiOACS applied materials & interfaces · 2024Article
- Allergen Microarrays and New Physical Approaches to More Sensitive and Specific Detection of Allergen-Specific Antibodies.Biosensors · 2024Review
- A Miniaturized Silicon Lab-on-Chip for Integrated PCR and Hybridization Microarray for High Multiplexing Nucleic Acids Analysis.Biosensors · 2022Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Surface substrate and chemical functionalization are crucial aspects for the fabrication of the sensitive biosensor based on microarray technology. In this paper, an advanced, silicon-based substrate (A-MA) allowing enhancement of optical signal for microarray application is described. The substrate consists in a multilayer of Si/Al/SiO₂ layers. The optical signal enhancement is reached by a combination of the mirror effect of Al film and the SiO₂ thickness around 830 nm, which is able to reach the maximum of interference for the emission wavelength of the Cy5 fluorescent label. Moreover, SiO₂ layer is suitable for the immobilization of single-strand DNA through standard silane chemistry, and probe densities of about 2000 F/um² are reached. The microarray is investigated in the detection of HBV (Hepatitis B Virus) pathogen with analytical samples, resulting in a dynamic linear range of 0.05⁻0.5 nM, a sensitivity of about 18000 a.u. nM
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Registered trials
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