In accordance with one embodiment, a method of capturing biomatter includes placing a device comprising the biomatter within an extension tube, the extension tube being coupled to a tray. A fold is created in the extension tube sealing the extension tube and the biomatter contained therein. The extension tube is secured to the tray to maintain the fold. The assembly is discarded, e.g., into a bio-waste disposal bag in a bio-waste container. The fold is a smooth fold, in contrast to a sharp tip, thus minimizing the possibility of puncture of the bio-waste disposal bag.