Photoinduced polymerization is a useful tool in many industrial applications such as coatings, adhesives and 3D printing. However, the use of light to promote polymerization has been almost exclusively used...

Giardia cysts stained with hot carbolfuchsin were used as internal controls in a concentration method for surface water samples. The morphological integrity of stained cysts and the stain's stability and intensity were tested with each of the chemical reagents used in the aluminum sulfate flocculation method. No alterations in morphology or color were noted. The stained cyst preparation has a low cost, high stability, and suitability for both light and immunofluorescent microscopy, making it affordable to researchers in low-and middle-income countries.