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Palladium’s reflective properties, particularly in visible and infrared ranges, combined with its resistance to corrosion and high temperatures, make it ideal for specialised mirrors used in lasers, spectrometers, and endoscopes. Palladium-coated mirrors offer effective reflection with minimal energy loss, maintaining optical properties even at high temperatures, which is crucial for lasers. Additionally, palladium is used in scientific research and medical applications, such as endoscopes, due to its biocompatibility, corrosion resistance, and longevity. It also enhances the sensitivity of optical devices and spectrometers when applied in thin films or nanostructures.

Palladium has recently found a new application in 3D printing, where its powdered form is used in selective laser sintering (SLS) and electron beam melting (EBM). This allows for the creation of complex shapes used in jewellery, watches, electronics, and medicine. In healthcare, palladium powders are utilised to make custom implants and medical devices requiring precision and biocompatibility. The powders and nanoparticles are produced through chemical methods, using reducing agents like hydrogen, alcohols, formaldehyde, and citric acid, allowing for tailored particle sizes and properties for diverse uses.