Yes, PDMS (polydimethylsiloxane) can be fabricated into a sponge-like structure using various methods, such as casting and molding. PDMS is a versatile material with excellent biocompatibility, optical transparency, and mechanical properties, making it a suitable candidate for various applications, including adsorption. Researchers have investigated the use of PDMS-based materials for the removal of various pollutants, including dyes. Methyl blue, a common cationic dye, has been found to be effectively removed by PDMS-based materials. However, it is worth noting that the performance of PDMS sponges in the removal of methyl blue may depend on the specific fabrication method and the properties of the PDMS sponge.