“…Other materials include polyamides, polyethylene, epoxide prepolymer mixtures, polyethers, vinyl polymers such as poly(methyl methacrylate), PCL, and even conducting polymers such as polythiophenes, which are notoriously difficult to process (Table ). ,, An important point to made, which is further detailed by Ligon et al., is that jet printing allows for ceramic and metal 3D printing as well, such as hydroxyapatite, which means that this technique may be exploited without any polymeric components. ,, Conversely, this also means that other biosourced additives may be included in polymeric inks, which include poly(vinyl alcohols), sugars, starches, cellulose, and chitosans, among others . Naturally derived terpene materials are also being utilized in inkjet printing as terpene phenol resins which cover an entire material category.…”