Amine-modified magnetic particles: An efficient tool for enhanced RNA extraction

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027162%3A_____%2F25%3AN0000001" target="_blank" >RIV/00027162:_____/25:N0000001 - isvavai.cz</a>

Alternative codes found

RIV/62156489:43210/25:43925799 RIV/61989592:15640/25:73627721 RIV/61989100:27740/25:10256699

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S1383586624035275" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1383586624035275</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.seppur.2024.129788" target="_blank" >10.1016/j.seppur.2024.129788</a>

Result language

angličtina

Original language name

Amine-modified magnetic particles: An efficient tool for enhanced RNA extraction

Original language description

Magnetic particles are an effective tool for simple, time-saving, and labour-saving nucleic acid extraction. In this study, we investigated the isolation of nucleic acids (NA) using 11 variants of magnetic nanoparticles (MPs, 52 ± 6.8 nm) with a surface concentration of amine groups up to 20.8 nmol · mg−1. All results were compared with morphologically identical magnetic material modified with SiO2 grafted with (3-aminopropyl)triethoxysilane (APTES). The properties of these materials were characterized by transmission electron microscopy, scanning electron microscopy, dynamic and electrophoretic light scattering, and magnetometry. Concentrations of amine groups on MPs-APTES were determined by the chemical bind and release method with photometric quantification. The isolation potential of the proposed materials toward NAs was evaluated using gel electrophoresis with photometric determination of NAs concentrations and RT-qPCR. Our results show that the NAs yields of MPs-APTES are higher than the reference MPs-SiO2, regardless of the amine group concentrations. Although the total yield decreased with the concentration of amine groups, a different affinity towards genomic DNA (gDNA) was observed. A high concentration of grafted amine groups induced a preference for ribosomal RNA (rRNA) over gDNA and mediated effective NA elution. Densitometric image analysis of gDNA bands showed that NAs isolated by MPs-SiO2 contained significantly higher DNA levels than MPs with 1/32 %, 1/2 %, and 16 % APTES modification, which was subsequently confirmed by qPCR. Gene expression analysis performed by RT-qPCR revealed that unwanted gDNA contamination did not significantly affect the threshold cycles (Ct) of target genes when cDNA-specific primers were used, but may lead to overestimation when targeting genes with low expression and no possibility to design cDNA-unique primers. From a practical point of view, MPs-APTES provided better dose-dependent NA isolation performance with stable NA quality.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

20402 - Chemical process engineering

Project

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

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Separation and Purification Technology

ISSN

1383-5866

e-ISSN

1873-3794

Volume of the periodical

356

Issue of the periodical within the volume

1 April 2025

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

14

Pages from-to

"129788"

UT code for WoS article

001332923400001

EID of the result in the Scopus database

2-s2.0-85205676873