申请人:BREEN CRAIG
公开号:US20110245533A1
公开(公告)日:2011-10-06
A nanoparticle including an inorganic core comprising at least one metal and/or at least one semi-conductor compound comprising at least one metal includes a coating or shell disposed over at least a portion of a surface of the core. The coating can include one or more layers. Each layer of the coating can comprise a metal and/or at least one semiconductor compound. The nanoparticle further includes a ligand attached to a surface of the coating. The ligand is represented by the formula: X-Sp-Z, wherein: X represents: a primary amine group, a secondary amine group, a urea, a thiourea, an imidizole group, an amide group, a carboxylic acid or carboxylate group; a phosphoric acid group, a phosphate group, a phosphite group, a phosphinic acid group, a phosphinate group, a phosphine oxide group, a phosphinite group, a phosphine group, an arsenic acid group, an arsenate group, an arsenous acid group, an arsenite group, an arsinic acid group, an arsine oxide group, or an arsine group; Sp represents a group capable of allowing a transfer of charge or an insulating group; and Z represents a multifunctional group including three or more functional groups capable of communicating a specific property or chemical reactivity to the nanoparticle, wherein at least three of the functional groups are chemically distinct, and wherein Z is not reactive upon exposure to light. Compositions including a nanoparticle in accordance with the invention are also disclosed. Devices including nanoparticle and/or composition in accordance with the invention are disclosed. Methods for preparing nanoparticles in accordance with the invention are disclosed. Other products including a nanoparticle in accordance with the invention are also disclosed.
一种纳米粒子包括无机核心,该核心包括至少一种
金属和/或至少一种半导体化合物,包括涂层或壳覆盖在核心的至少一部分表面上。涂层可以包括一个或多个层。涂层的每一层可以包括一种
金属和/或至少一种半导体化合物。纳米粒子还包括连接到涂层表面的
配体。
配体由公式X-Sp-Z表示,其中:X代表:主要胺基、次要胺基、
脲、
硫脲、
咪唑基、酰胺基、
羧酸或
羧酸盐基、
磷酸基、
磷酸盐基、
亚磷酸盐基、
磷酸酸基、
磷酸酯基、
磷氧化物基、
亚磷酸酯基、膦基、
砷酸基、
砷酸盐基、
亚砷酸基、
亚砷酸盐基、
砷酸酸基、
砷氧化物基或
砷基;Sp代表一个能够允许电荷转移的基团或绝缘基团;Z代表一个多功能基团,包括三个或更多的功能基团,能够向纳米粒子传递特定的性质或
化学反应性,在其中至少三个功能基团是
化学上不同的,并且Z在暴露于光线时不反应。还公开了包括本发明中的纳米粒子的组合物。公开了包括本发明中的纳米粒子和/或组合物的设备。公开了制备本发明中的纳米粒子的方法。还公开了包括本发明中的纳米粒子的其他产品。