金纳米壳

Gold Nanoshells

G475867-1ml

1ml

λₘₐₓ,980 nm,纳米级,1 mg/mL水溶液,羧基(硫辛酸)

2-8°C储存

冰袋运输

切勿冷冻。 不用时存放在 2-8C 温度下，以延长保质期。 纳米材料对高pH值、低pH值和高浓度盐敏感。 改变环境条件时要小心，因为颗粒可能会聚集、

Product description： Lipoic Acid contains both a carboxyl group and a dithiol group. The dithiol group strongly binds to the metal nanoparticle surface after reduction while the carboxylic acid group is available for further chemical derivatization. The acid group also provides a highly negatively charged surface at appropriately high pH. Carboxyl surfaces can be used to covalently bind molecules with free amines (e.g. antibodies) to the surface of the particles. An amide bond between the acid surface and the free amine is formed using EDC / NHS chemistry. At nanoComposix we use two different molecules to provide a surface with chemically accessible carboxylic acids. One is lipoic acid and the other is the lipoic acid derivative, lipoic-dPEG12-COOH, which is similar to lipoic acid but contains a PEG spacer between the thiol and carboxylic acid functional groups. For BioReady gold nanoparticles with diameters less than 100 nm, the lipoic-dPEG12-acid is used. For larger diameter BioReady nanoparticles (e.g. 150 nm gold nanoshells), lipoic acid is used. Peak Wavelength(> 90% peak absorbance)：980 nm Silica Core Diameter：200 nm ± 10 nm Gold Shell Thickness：20 nm ± 7 nm Hydrodynamic diameter (DLS): TEM diameter plus to 30 nm Zeta potential: –25 to –70 mV pH of solution: 5.0 to 7.5 Particle surface: lipoic acid Solvent: .02 mM potassium carbonate

Soluble in H2O at 20℃