Enhanced wettability of poly(ethylene terephthalate glycol) (PETG) sheets using oxygen reactive ion etching - Salapare, Hernando S.; Guittard, Frédéric; Ouakkad, Walid; Ouakkad, Achraf; Cosiñero, Hannah Shamina O.; Suarez, Beverly Anne T.; Bacaoco, Miguel Y.; Ramos, Henry J. (Proceedings of the 33rd Samahang Pisika ng Pilipinas Physics Congress, 2015)