| CPC C09D 11/52 (2013.01) [B41M 5/0047 (2013.01); B41M 5/5209 (2013.01); C09D 11/38 (2013.01)] | 15 Claims |

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1. A conductive ink functional material, wherein the conductive ink functional material is a surface-functionalized metal nanoparticle having a structure as shown in a formula I:
![]() ![]() is a metal nanoparticle;
![]() is a medium structure;
is a protective agent; and R1 is an organic structure consisting of C, N, O and H. |