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Application of aptamers as molecular recognition elements in lateral flow assays for analytical applications

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journal contribution
posted on 31.01.2020, 13:29 authored by Ruth Reid, Bandhan Chaterjee, Soonjyoti Das, Sourav GhoshSourav Ghosh, Tarun Kumar Sharma

Owing to their ease in operation and fast turnaround time, lateral flow assays (LFAs) are increasingly being used as point-of-care diagnostic tests for a variety of analytes. In a majority of these LFAs, antibodies are used as a molecular recognition element. Antibodies have a number of limitations such as high batch-to-batch variation, poor stability, long development time, difficulty in functionalization and need for ethical approval and cold chain. All these factors pose a great challenge to scale up the antibody-based tests. In recent years, the advent of aptamer technology has made a paradigm shift in the point-of-care diagnostics owing to the various advantages of aptamers over antibodies that favour their adaptability on a variety of sensing platforms including the lateral flow. In this review, we have highlighted the advantages of aptamers over antibodies, suitability of aptamers for lateral flow platforms, different types of aptamer-based LFAs and various labels for aptamer-based LFAs. We have also provided a summary of the applications of aptamer technology in LFAs for analytical applications.

Funding

Department of Biotechnology-Govt. of India, Innovative Young Biotechnologist Award (BT010/IYBA/2016/10)

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Analytical Biochemistry

Volume

593

Publisher

Elsevier BV

Version

AM (Accepted Manuscript)

Rights holder

© Elsevier

Publisher statement

This paper was accepted for publication in the journal Dalton Transactions and the definitive published version is available at https://doi.org/10.1016/j.ab.2020.113574

Acceptance date

02/01/2020

Publication date

2020-01-03

ISSN

0003-2697

Language

en

Depositor

Dr Ruth Reid . Deposit date: 31 January 2020

Article number

113574