Fig. 1
From: In-situ synthesis and integration of gold nanoparticles into 3D printed optical fiber probes

(A) The chemical reaction under the influence of UV light in TPO and the cross-linking of HEMA and PEGDA, (B) 3D printing of the optical fiber probes, (C) Integrating gold nanoparticles in the optical fiber probes. Gold nanoparticles are only synthesized within the region printed with HEMA resin.