Nanosized Fe3O4 an efficient PCR yield enhancer-Comparative study with Au, Ag nanoparticles

Area of Science:

• Nanobiotechnology
• Molecular Biology
• Materials Science

Background:

• Nanomaterials integration into conventional PCR enhances DNA amplification.
• Variable effects of nanomaterials on PCR yield necessitate comparative studies.
• Transition metal nanoparticles offer potential as PCR enhancers.

Purpose of the Study:

• To compare the PCR enhancing efficiency of silver, gold, and magnetite nanoparticles.
• To investigate the effect of varying nanoparticle concentrations on DNA amplification.
• To identify optimal nanomaterials for improved PCR yield.

Main Methods:

• Chemical synthesis and characterization of silver, gold, and magnetite nanoparticles (UV-vis, nanoparticle tracking, AFM).
• Assessment of nanoparticle effect on amplifying an 800 bp prokaryotic DNA template using a conventional thermal cycler.
• Analysis of PCR reaction kinetics and amplification efficiency at varying concentrations.

Main Results:

• Ammonium salt-coated magnetite (Fe3O4) nanoparticles (33 nm) at 0.72 × 10(-2)nM showed the highest amplification efficiency (190%).
• Citrate-stabilized silver nanoparticles (AgNP, 25 nm) yielded 45% efficiency, and gold nanoparticles (AuNP, 15.19 nm) yielded 134%.
• Fe3O4 NPs outperformed others due to heat conduction and component adsorption properties.

Conclusions:

• Magnetite nanoparticles are highly effective PCR yield enhancers.
• Ferrofluids offer an economical and efficient alternative for nanomaterial-assisted PCR.
• Optimized Fe3O4 nanoparticle formulations can significantly boost DNA amplification.