The disclosure provides nanoemulsion compositions and methods of making and using thereof to deliver a bioactive agent such as a nucleic acid to a subject. Compositions of the disclosure include RNA-lipid nanoparticle complexes encoding for viral RNA polymerase region and protein antigen. Compositions are further described where the lipid nanoparticles are characterized as having a z-average diameter particle size measurement of 20 nm to 80 nm when measured using dynamic light scattering. The nanoemulsion compositions of the disclosure comprises a hydrophobic core, optionally including inorganic nanoparticles, in a lipid nanoparticle that allows imaging as well as delivering nucleic acids. Methods of using these particles for treatment and vaccination are also provided.

The disclosure provides nanoemulsion compositions and methods of making and using thereof to deliver a bioactive agent such as a nucleic acid to a subject. The nanoemulsion composition comprises a hydrophobic core based on inorganic nanoparticles in a lipid nanoparticle that allows imaging as well as delivering nucleic acids. Methods of using these particles for treatment and vaccination are also provided.

The disclosure provides nanoemulsion compositions and methods of making and using thereof to deliver a bioactive agent such as a nucleic acid to a subject. The nanoemulsion composition comprises a hydrophobic core based on inorganic nanoparticles in a lipid nanoparticle that allows imaging as well as delivering nucleic acids. Methods of using these particles for treatment and vaccination are also provided.

The disclosure provides nanoemulsion compositions and methods of making and using thereof to deliver a bioactive agent such as a nucleic acid to a subject. Compositions of the disclosure include nucleic-acid lipid nanoparticle complexes encoding for viral RNA polymerase region and protein antigen. The nanoemulsion compositions of the disclosure comprises a hydrophobic core, optionally including inorganic nanoparticles in a lipid nanoparticle that allows imaging as well as delivering nucleic acids. Methods of using these particles for treatment and vaccination are also provided, including methods for administering to a subject a composition of the disclosure in an amount sufficient to generate an immune response.

The disclosure provides nanoemulsion compositions and methods of making and using thereof to deliver a bioactive agent such as a nucleic acid to a subject. Compositions of the disclosure include RNA-lipid nanoparticle complexes encoding for viral RNA polymerase region and protein antigen. Compositions are further described where the lipid nanoparticles are characterized as having a z-average diameter particle size measurement of 20 nm to 80 nm when measured using dynamic light scattering. The nanoemulsion compositions of the disclosure comprises a hydrophobic core, optionally including inorganic nanoparticles, in a lipid nanoparticle that allows imaging as well as delivering nucleic acids. Methods of using these particles for treatment and vaccination are also provided.

[Problem]

A novel method for producing a nanoparticle having a metal particle which contains iron oxide to which one or more hydrophilic ligands are coordination bonded is provided, where the nanoparticle is useful as a contrast agent for magnetic resonance imaging.

[Means for Solution]

As the novel method for producing a nanoparticle having a metal particle which contains iron oxide to which one or more hydrophilic ligands are coordination bonded, by performing ligand exchange to a hydrophilic ligand from an iron oxide nanoparticle having a surface to which a hydrophobic ligand is coordination bonded in one step using a phase transfer catalyst, it is possible to expect shortening of production processes and reduction of hydrophilic ligands used.

Furthermore, by producing an iron oxide nanoparticle having a surface to which a hydrophobic ligand is coordination bonded using a dropwise addition method, it is possible to avoid a rapid temperature rise and a reaction at a high temperature of 200° C. or higher, which is more advantageous for industrial production.

The disclosure provides nanoemulsion compositions and methods of making and using thereof to deliver a bioactive agent such as a nucleic acid to a subject. The nanoemulsion composition comprises a hydrophobic core based on inorganic nanoparticles in a lipid nanoparticle that allows imaging as well as delivering nucleic acids. Methods of using these particles for treatment and vaccination are also provided.

The disclosure provides nanoemulsion compositions and methods of making and using thereof to deliver a bioactive agent such as a nucleic acid to a subject. The nanoemulsion composition comprises a hydrophobic core based on inorganic nanoparticles in a lipid nanoparticle that allows imaging as well as delivering nucleic acids. Methods of using these particles for treatment and vaccination are also provided.

The disclosure provides nanoemulsion compositions and methods of making and using thereof to deliver a bioactive agent such as a nucleic acid to a subject. The nanoemulsion composition comprises a hydrophobic core based on inorganic nanoparticles in a lipid nanoparticle that allows imaging as well as delivering nucleic acids. Methods of using these particles for treatment and vaccination are also provided.

The disclosure provides nanoemulsion compositions and methods of making and using thereof to deliver a bioactive agent such as a nucleic acid to a subject. The nanoemulsion composition comprises a hydrophobic core based on inorganic nanoparticles in a lipid nanoparticle that allows imaging as well as delivering nucleic acids. Methods of using these particles for treatment and vaccination are also provided.