Implants for administering substances and methods of producing implants

An implant for delivery of a beneficial substance, comprising:

• a) a mesoporous resorbable or bio-erodible carrier material having pores for receiving a beneficial substance and
• b) a beneficial substance disposed in the pores of the carrier material,
• wherein the implant releases the beneficial substance from the pores of the carrier material in a controlled manner when the implant is in contact with a bodily fluid.

A method of making an implant for delivery of a beneficial substance to a subject, comprising introducing a beneficial substance into pores of a mesoporous resorbable or bio-erodible carrier material, wherein the implant releases the beneficial substance from the pores of the carrier material in a controlled manner when the implant is in contact with a bodily fluid.

A composition for delivering a beneficial substance, comprising

• a plurality of implantable resorbable or bio-erodible silicon-based carriers, each carrier being mesoporous and each carrier being sized for injection through a needle, and a beneficial substance disposed within pores of the carrier,
• wherein the implant releases the beneficial substance from the pores of the carrier material in a controlled manner when the implant is in contact with a bodily fluid.

A method for delivering a beneficial substance to a patient's body, comprising providing a solution of the beneficial substance,

• immersing a plurality of mesoporous resorbable or bio-erodible silicon-based carrier bodies in the solution to impregnate pores of the respective bodies with the beneficial substance, and
• implanting the plurality of silicon-based carrier bodies within the body of the patient.