produces dense, dry, stable protein particles

ideal for suspensions or encapsulation

Microglassification™ is a process that gently removes a majority of the water from solutions of proteins, or other biologics, resulting in solid, spherical, amorphous microbeads. In this dry state, biologics are often stable enough for long-term storage, transport, or incorporation into drug delivery formulations.

The video shows one of our early experiments: Microglassification™ of a single protein microdroplet, held on the end of a glass capillary micropipette. The resulting solid microbead consists of pure protein at > 1 g/mL. Currently used methods mimic this experiment, producing protein microdroplets on a bulk scale and dehydrating those microdroplets within seconds.

Microglassification Process

High-Concentration Biologics

Biological molecules such as monoclonal antibodies often require dosing of several hundred mg. In order to allow subcutaneous administration, which can only accommodate 1-2 mL of volume, the protein must be formulated at high concentration (>200 mg/mL). However, the viscosity of solutions of these molecules increases dramatically above 100 mg/mL, making injection prohibitively difficult.

Suspensions of Microglassified protein can have a much lower viscosity than solutions of the same concentration. Preliminary formulations have been injectable through a 27G needle at >500 mg/mL.