Abstract: Various embodiments of the present disclosure disclose a system for forming a sealed chamber for preparing samples therein. In particular, various embodiments present an assembly that includes a sample device and a lid for forming a sealed chamber that can be used for, among other things, incubating samples therein. When the lid engages with the sample device, a plurality of snap joint elements of the lid engage with a respective plurality of snap joint elements to form a seal between the lid and the sample device.

Abstract: Devices, systems, and their methods of use, for generating and collecting droplets are provided. The invention provides multiplex devices that increase droplet formation in a limited area.

Abstract: Disclosed are devices, systems, kits, and methods for controlling liquid flow and, e.g., in particular, for forming droplet having substantially uniform droplet-to-droplet content. The devices, systems, and kits may include a first channel including a funnel or may include a first channel and a first-side channel, the first channel being in fluid communication with a droplet formation region. The devices, systems, and kits may further include a second channel fluidically connected to the first channel or the first side-channel. Funnels and/or side-channels may be used to enhance the control over particle spacing in the channels, thereby providing superior control over the number of particles of the same kind in formed droplets. The devices, systems, and kits of the invention may further include a mixer downstream of a channel intersection. Mixers can be used to reduce localized pockets of high concentration of dissolved ingredients.