Patent ID: 7632425

Claim:
A nanoparticle forming composition, comprising: a metal precursor comprising an inorganic ligand and a metal cation, wherein the inorganic ligand comprises silicon and a carbamate group and the metal precursor comprises a structure of formula (I) wherein “n” is 1 or 2, X + is the metal cation, and R 1 comprises a structure of formula (II): M a D b T c Q d R 2 (II) wherein the subscripts “a”, “b”, “c”, and “d” are independently zero or a positive integer, and the sum of integers “a”, “b”, “c”, and “d” is greater than or equal to 1, and M has the formula: R 3 R 4 R 5 SiO 1/2 , (III) D has the formula: R 6 R 7 SiO 2/2 , (IV) T has the formula: R 8 SiO 3/2 , (V) and Q has the formula: SiO 4/2 , (VI) and R 2 is a divalent aliphatic radical having formula (—Si(R 9 )(R 10 )—CH 2 —CH(R 11 )(R 12 ) z —, wherein R 3 to R 10 are independently an aliphatic radical, a cycloaliphatic radical, or an aromatic radical; R 11 is a hydrogen atom or an aliphatic radical; R 12 is a divalent aliphatic radical, and “z” is 0 or 1; and wherein the metal precursor responds to electromagnetic or thermal stimulus to form a metal nanoparticle.