Fig. 6
From: Recent progress in advanced biomaterials for long-acting reversible contraception
(Reprinted with permission from reference [10]. Copyright 2019 American Association for the Advancement of Science)
A The design of the PDMS-based polymer matrices for oral drug delivery. B The performance evaluation of the arm includes flexural strength, interfacial tensile stability, and stability of LNG in the devices. C Detection of serum concentration of LNG in pigs administered as pills (left), three arms of PDMS (middle), and six arms of PDMS (right). D X-ray images observing the arm shapes and retention sites in the porcine stomach