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Fluorescent Techniques for RNA Detection in Nanoparticles.

Simone P Carneiro1,2, Joschka T Müller1, Olivia M Merkel3,4,5

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Methods in Molecular Biology (Clifton, N.J.)
|June 22, 2024
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Summary
This summary is machine-generated.

Accurate quantification of nucleic acids in nanomedicines is crucial. This study details protocols using RiboGreen and SYBR Gold for evaluating encapsulation efficiency in lipid nanoparticles and polyplexes/micelleplexes.

Keywords:
Encapsulation efficiencyRiboGreenSYBR GoldsiRNA-lipid nanoparticlessiRNA-micelleplexessiRNA-polyplexes

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Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Molecular Biology

Background:

  • Nucleic acid delivery systems like lipid nanoparticles and polyplexes/micelleplexes are vital for treating diseases.
  • Precise quantification of nucleic acid cargo is essential for nanomedicine safety and efficacy.
  • RiboGreen and SYBR Gold are standard methods for RNA quantification in these systems.

Purpose of the Study:

  • To present a comprehensive protocol for evaluating encapsulation efficiency of nucleic acids in nanocarriers.
  • To provide detailed instructions for nanoparticle preparation and characterization.
  • To compare the sensitivity of RiboGreen and SYBR Gold for quantifying unencapsulated small interfering RNA (siRNA).

Main Methods:

  • Utilized RiboGreen assay for lipid nanoparticles.
  • Employed SYBR Gold assay for polyplexes/micelleplexes.
  • Included protocols for nanoparticle preparation, characterization, and quantification of encapsulated and unencapsulated siRNA.

Main Results:

  • Established protocols for accurate encapsulation efficiency determination.
  • Demonstrated comparative sensitivity analysis of RiboGreen and SYBR Gold for siRNA quantification.
  • Provided a framework for quality control in nucleic acid nanomedicine development.

Conclusions:

  • The presented protocols enable precise evaluation of nucleic acid encapsulation efficiency.
  • Comparative analysis aids in selecting the optimal quantification method based on nanocarrier type and sensitivity requirements.
  • Standardized methods are critical for advancing the development of safe and effective nucleic acid-based nanotherapeutics.