Green Synthesis of Bio-Compatible Carboxylate-Functionalized Carbon Layer of 4 to 26 nm Thickness on Gold Plasmonic Nanoparticles

Key Points

• The research aims to develop a method for creating thin carboxylate-functionalized carbon layers on gold nanoparticles.
• Synthesis of polycrystalline spherical gold nanoparticles
• Coating with carboxylate-functionalized carbon layers
• Utilization of a hydrothermal approach to achieve tunable thickness
• Carbon layer thickness achieved between 4 and 26 nm
• Demonstrated unprecedented thinness with a minimum of 4 nm
• Enhanced bio-compatibility of gold nanoparticles due to the carbon layer