Particle-containing complex porous materials
AssigneeThe Regents of the University of Michigan
InventorsPeter X. Ma, Guobao Wei
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Abstract
Porous materials and methods for forming them are disclosed. One method for immobilizing micro-particles and/or nano-particles onto internal pore surfaces and/or external pore surfaces of porous materials includes suspending the micro-particles and/or nano-particles in a liquid adapted to swell, soften, and/or deform either the porous materials and/or the particles, thereby forming a liquid-particle suspension. The method further includes adding the suspension to the porous materials; and removing the liquid, thereby forming the porous materials having the micro-particles and/or nano-particles immobilized on the internal pore surfaces and/or the external pore surfaces.
Claims4
A material capable of controllably releasing a biologically active agent, comprising:
- a three-dimensional porous polymer material having nano-fibrous walls, and pores formed throughout the material such that the material includes internal pore surfaces and external pore surfaces;
- and
- at least one of micro-particles or nano-particles immobilized directly onto at least one of the internal pore surfaces or the external pore surfaces throughout the three-dimensional porous polymer material, the at least one of the micro-particles or nano-particles including poly(lactic-co-glycolic acid) or poly(L-lactic acid) having the biologically active agent embedded therein.
Dependencies are inferred from the claim text.