Pharmaceutical spray freeze drying Stefan Wanning, Richard Süverkrüp, Alf Lamprecht Abstract Pharmaceutical spray-freeze drying (SFD) includes a heterogeneous set of technologies with primary applications in apparent solubility enhancement, pulmonary drug delivery, intradermal ballistic administration and delivery of vaccines to the nasal mucosa. The methods comprise of three steps: droplet generation, freezing and sublimation drying, which… Continue reading Pharmaceutical spray freeze drying