▎ 摘　　要

NOVELTY - The process involves synthesizing nano colloidal particles by chloride citrate reduction method. The tropical administration at the site of characterization is performed. The surface characterization using thermography is performed. The surface characterization is done without the intervention of acoustic or radio frequency fields. The nano colloidal material is gold nanoparticles having particle size diameter range of 20-70nm. The nano colloidal material has a particle size diameter of 30nm. The surface characterization using thermal imaging is done at a wavelength range of 800nm-1200nm. USE - Process for surface characterization of object e.g. polymers, graphene, glass in thermal imaging using nano colloidal material e.g. gold nano particles as contrast agent. ADVANTAGE - The simplified process for surface characterization and enhancement of contrast using nano colloidal material in thermal imaging can be provided. The process for surface characterization gold nano particles as contrast agent in thermal imaging can be provided. The contrast enhancement technique can be provided without intervention of acoustic or radio frequency fields. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view illustrating the process for surface characterization of object in thermal imaging using nano colloidal material as contrast agent.