Critical micelle concentration of aminodecane-glutamic acid and behaviors of aminodecane-glutamic acid/ibuprofen/water nanospheres

The critical micelle concentration of aminodecane-glutamic acid (bio-active substance, C10G) is 1.6 × 10−2 mol L−1 using surface tension and conductivity measurements. The additions of ibuprofen, glucose and salt lead to the decrease of the critical micelle concentration. The nanospheres with a radius of 40–80 nm can be prepared in C10G/ibuprofen/H2O system. The stability of the nanospheres is about 180 days. Glucose, pH and NaCl all have the effects on the size and dispersion behaviors of the nanospheres.