Two colorimetric LAMP systems for nucleic acid-based diagnostics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F25%3APU155853" target="_blank" >RIV/00216305:26220/25:PU155853 - isvavai.cz</a>

Alternative codes found

RIV/62156489:43210/25:43926547

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0003267025001461?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0003267025001461?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aca.2025.343752" target="_blank" >10.1016/j.aca.2025.343752</a>

Result language

angličtina

Original language name

Two colorimetric LAMP systems for nucleic acid-based diagnostics

Original language description

Background: This study introduces an advanced 8-well loop-mediated isothermal amplification (LAMP) system specifically designed for the automated colorimetric detection of SARS-CoV-2. Incorporating two distinct configurations having either three light-emitting diodes (LEDs) with varying emission wavelengths per well, paired with a photodiode detector, or utilizing white LED illumination with a red, green, and blue (RGB) sensor. The colorimetric LAMP aims to provide a more accessible and rapid diagnostic tool than traditional fluorescence methods due to the system's simplicity. Results: We designed, assembled, and compared two colorimetric home-assembled LAMP systems, the first one based on three LEDs, each with a different color with a photodiode, and the second one having RGB and a white LED, with traditional fluorescence-based LAMP method performed on a commercial qPCR instrument. Results demonstrated that the colorimetric RT-LAMP assays achieved critical threshold time (CT), closely matching the CT value of fluorescence-based detection accomplished by the qPCR instrument. We performed the fundamental experiment employing an identical RNA copy number of 1,570copies center dot mu L-1, getting the CT value of (16.70 f 0.43) min (mean f standard deviation from 23 measurements). Then, we also performed different RNA numbers of copies between the highest and lowest RNA contents of ti 157,000 copies center dot mu L-1 and ti 1570 copies center dot mu L- 1, respectively, getting CT values from (13.30 f 0.04) min to (13.75 f 0.30) min and (17.04 f 0.02) min to (17.26 f 0.02) min, all (mean f standard deviation from three measurements). The colorimetric systems demonstrated rapid response and precision across varied viral loads while keeping the system simple due to the colorimetric detection method. Significance and novelty: The LAMP system's rapid and precise detection capabilities underscore its potential as an effective tool for point-of-need diagnostics. It is crucial

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20602 - Medical laboratory technology (including laboratory samples analysis; diagnostic technologies) (Biomaterials to be 2.9 [physical characteristics of living material as related to medical implants, devices, sensors])

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

ANALYTICA CHIMICA ACTA

ISSN

0003-2670

e-ISSN

1873-4324

Volume of the periodical

1346

Issue of the periodical within the volume

4

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

11

Pages from-to

1-11

UT code for WoS article

001423854900001

EID of the result in the Scopus database

2-s2.0-85216839872