The aim of this work was to design and build novel scaffolds of different composition for application of 3D printing in organic tissues and to determine the thermal properties of these nanocomposites; therefore, novel silver/acrylic composites based on silver nanoparticles (AgNPs) of 15.7 nm average in diameter synthesized by a green method, and silver nanowires (AgNWs) of 50 nm in diameter and 1.5 µm in length synthesized by the polyol method were successfully prepared. Thermal lens spectroscopy (TLS) in a mismatched configuration was used to determine the liquid sample’s thermal diffusivity (D), and photoacoustic spectroscopy (PA) in an open cell (OPC) configuration was used to determine the nanocomposite’s characteristic curing time (τ). Values of D for the AgNPs range from 14.8 x 10-8 to 47.4 x 10-8 m2/s (4.5 to 18.5 x 10-5 wt%) with curing times (τ) of 26.7 to 57.7 s. On the other hand, the values of D for the AgNWs composites were between 6.6 x 10-8 and 36.6 x 10-8 m2/s (4.1 to 16.5 x 10-5 wt%) with curing times (τ) of 482.9 s to 1650.9 s (4.1 to 12.8 x 10-5 wt%). Scaffolds were 3D printed with a lithographic printer prototype whose experimental variables were optimized using an experimental design (DOE). Characterization techniques as transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FTIR), and UV–vis spectroscopy were used to determine AgNPs, AgNWs and resin’s morphology, physical and chemical aspects. Shore hardness D tester was used to analyze the scaffolds mechanical behavior with a linear increase for the AgNPs composites and non-linear trend for the AgNWs composites. From the results, an improvement and optimization of the thermal diffusivity, mechanical properties and curing time of the new nanocomposites was obtained with the increase in concentration.