A lyophilizer is a device designed for freeze drying, that is, the process of drying materials at low temperatures, usually below the freezing point of water, and under reduced pressure conditions. This method allows you to remove water from samples by sublimation, that is, the direct transition of water from a solid to a gaseous state, bypassing the liquid phase. By operating at low temperatures, lyophilization eliminates thermal degradation of sensitive substances, preserving their structure and biological activity. The freeze-drying temperature of a naked device can reach -40℃.
Lyophilizers are widely used in various fields of science and industry. In pharmaceuticals and biotechnology they are used for drying drugs, vaccines and biological samples. In the food industry - for the production of freeze-dried food products that retain nutritional and energy value. In chemistry and materials science, lyophilization is used to obtain powder materials with high porosity and a specific surface.
Such a device is indispensable when drying samples that are sensitive to high or even room temperatures. This allows you to avoid changes in the chemical composition, destruction of the molecular structure and loss of functional properties of materials. Lyophilization is especially relevant when working with biological samples, enzymes, high molecular weight compounds, as well as nanostructured and porous materials, where any thermal effect can lead to undesirable changes.