Silver sulfide quantum dots liquid

Quantum dots with near-infrared fluorescence (NIR) are an emerging class of quantum dots that possess unique properties due to their deeper tissue penetration compared to visible light. Near infrared light effectively overcomes the spontaneous fluorescence of living organisms, making near-infrared light quantum dots particularly attractive for biological imaging applications in disease diagnosis. Silver sulfide quantum dots (Ag2S QDs), a semiconductor metal sulfide material, have been widely used as near-infrared quantum dots in optical imaging, photoacoustic imaging, sensing, and photothermal therapy. Especially in the NIR-II region, they serve as effective biological imaging nanoprobes to guide disease diagnosis and treatment. Due to their excellent near-infrared fluorescence performance and biocompatibility, Ag2S QDs have become a rising star in near-infrared quantum dots. Compared with traditional NIR quantum dots, Ag2S QDs have better application prospects in biomedical fields because they do not contain toxic components.

Specification of Silver sulfide quantum dots liquid:

Concentration: 0.1 mg/mL (calculated based on the feeding ratio)
Solvent: Water
Diameter: 3-10 nm (HRTEM)
Appearance: Brown solution
Stabilizer: bovine serum albumin (BSA)

Product Features


1) Near infrared fluorescence characteristics: The emission wavelength is in the near-infrared region, which can improve tissue penetration depth and reduce background fluorescence.
2) Low cytotoxicity: using safe ingredients and synthesizing them in aqueous solution, with low in vivo toxicity;
3) Surface is easy to modify: The stabilizer BSA contains carboxyl groups that can modify its functional molecules.



Application of Silver sulfide quantum dots liquid:

1) Biological imaging: With good biocompatibility and stability, it has been widely studied for in vitro cell imaging and in vivo animal imaging;
2) Biosensing: has been developed for various biosensing platforms, such as detecting zinc ions, cadmium ions, and hydrogen peroxide;
3) Photothermal therapy: It has a good photothermal effect and can be used for antibacterial and anti-tumor treatment.