ICG indocyanine green is a three carbon cyanine dye with good water solubility and a molecular weight of 775. Indocyanine green can almost completely bind to plasma proteins in plasma and whole blood, ensuring that it remains almost completely in Xueguan and is not easily diffused outward. Indocyanine green (ICG) is a near-infrared imaging reagent currently approved by the US Food and Drug Administration (FDA) for clinical use. ICG is a three carbon cyanine dye with near-infrared characteristic absorption peaks, emission wavelengths between 795 and 845nm, and has amphiphilic structures that are both hydrophilic and lipophilic. Near infrared light has a greater penetration depth in tissues and is less affected by biological tissue background, Due to its near-infrared absorption and emission fluorescence characteristics, ICG can be used as an excellent tissue penetrating agent in vivo.

Phosphatidyl amino DSPE-NH2 is one of the most common materials in polymer modification. By grafting phospholipid bonds to amino molecules, polymeric polymers with different chain segments are formed by using phospholipid molecules, which reduces the thermal stability and weather resistance of the materials. At the same time, by introducing modifiers to improve the water resistance of the polymer itself, improve its processing performance, and finally obtain good water resistance, high mechanical properties, good weather resistance, good acid and alkali resistance products. DSPE-NH2 material is mainly composed of isopropyl alcohol butadiene, the isopropyl alcohol butadiene mixture is an aromatic polymer, with strong water absorption, hydrophilicity, and wide molecular weight distribution, good solubility, high mechanical strength characteristics, so the material can be used in many fields.

Phospholipids DSPE belong to the lipid family of biopolymers. Phospholipids consist of two fatty acids, a glycerol unit, a phosphate group, and a polar molecule. The phosphate groups and polar head regions of the molecule are hydrophilic (attracted to water), while the fatty acid tail is hydrophobic (repelled by water). When placed in water, the phospholipids Orient themselves into a double layer, where the non-polar tail region faces the inner region of the double layer. The polar head region faces outward and interacts with the water. Applications in drug release, nanotechnology and new materials research, cell culture. As well as ligand research, peptide synthesis support, grafted polymer compounds, new materials and pegylated modified functional coatings and other active compounds.

DSPE-N3 is a lipid. DSPE-N3 can be used for the research of various biochemical.