| abstract |
The present disclosure provides composites with good dispersibility and stable luminescence properties. The complex ( 2032 ) according to the present disclosure includes: a first substance ( 20322 ) having a property of specifically binding to a target substance; a quantum dot ( 20321 a ) containing silicon as a main component and having a negative surface charge; and a quantum dot ( 20321 a ) comprising the following The compound represented by the general formula (1), and the connecting substance (20321b) covering the surface of the quantum dot (20321a), the first substance (20322) is immobilized on the surface of the quantum dot (20321a) via the connecting substance (20321b) . X-L-Si-(R 1 )(R 2 )(OR 3 )...(1) (wherein, in the formula, X is a basic functional group, and R 1 , R 2 and R 3 are each independently an alkane group, L is an alkylene group.). |