US 8,911,864 B1 · Monodispersed particles fabricated by microfluidic device

Abstract

According to various embodiments the present disclosure provides porous particles and methods and apparatus for forming porous microparticles. According to a specific embodiment, the present disclosure provides microparticles with multi-nodal porosity and methods for forming the same. According to a still further embodiment, the present disclosure provides microfluidic device-based methods for forming microparticles with multi-nodal nanoporosity. Furthermore, the present disclosure provides populations of monodisperse mesoporous microparticles with multi-nodal nanoporosity and methods and apparatus for forming the same. According to a specific embodiment, the present disclosure provides populations of monodisperse mesoporous microparticles formed using a microfluidic device.

Claims13

Dependent claims

A method for forming a monodisperse spherical mesoporous microparticles comprising:

providing a microfluidic device comprising:
a main channel;
a first channel fluidly connected to the main channel, and
a second channel fluidly connected to the main channel downstream of the first channel;
delivering a mixture of a polymer precursor and a cationic surfactant though the main channel of the microfluidic device;
delivering oil via the first channel to form emulsion droplets;
delivering an oil and nonionic surfactant mixture via the second channel to form a microemulsion phase that penetrates the emulsion droplets;
removing the solvents and allowing polymerization of the polymer precursor so as to produce a monodisperse population of spherical microparticles having pores formed from templating the microemulsion droplets.

5 more elements

Dependencies are inferred from the claim text.

Monodispersed particles fabricated by microfluidic device

Life of this patent

Monodispersed particles fabricated by microfluidic device

Life of this patent

Abstract

Claims13