JOURNAL ARTICLE

Recent trends in nanomaterial-based signal amplification in electrochemical aptasensors

Abstract

Ultrasensitive biosensors have become a necessity in the world of scientific research, and several signal enhancement strategies have been employed to attain exceptionally low detection limits. Nanotechnology turns out to be a strong contender for signal amplification, as they can be employed as platform modifiers, catalysts, carriers or labels. Here, we have described the most recent advancements in the utilization of nanomaterials as signal amplification components in aptamer-based electrochemical biosensors. We have briefly reviewed the methods that utilized nanomaterials, namely gold and carbon, as well as nanocomposites such as: graphene, carbon nanotubes, quantum dots, and metal-organic frameworks.

Keywords:
SIGNAL (programming language) Nanomaterials Biosensor Carbon nanotube Colloidal gold Detection theory

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Topics

Advanced biosensing and bioanalysis techniques
Life Sciences →  Biochemistry, Genetics and Molecular Biology →  Molecular Biology
CRISPR and Genetic Engineering
Life Sciences →  Biochemistry, Genetics and Molecular Biology →  Molecular Biology
Electrochemical sensors and biosensors
Physical Sciences →  Engineering →  Electrical and Electronic Engineering

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