Kf 96l 1cs

In this study, the frictional properties of eye shadows E1-E3, cheek rouges CH1-CH3, face powders F1-F3, highlighters H1-H3, and powder foundations P1-P9 were evaluated. These powder cosmetics are commercially available in Japan, and their main ingredients are shown in Table 1. Powder cosmetics mainly contain pigments, such as mica, talc, silica, nylon, and titanium dioxide.
To confirm the hydrophilic and hydrophobic properties of the powders, approximately 20 mg of each cosmetic was added to a Petri dish filled with deionized water, liquid paraffin (Fujifilm Wako Pure Chemical Co., Ltd., Osaka, Japan) , or silicone oil (KF-96L-1CS, Shin-Etsu Chemical Co., Ltd., Tokyo, Japan) . The conditions were observed immediately after the addition and again 5 min later. The shape of the powder particles in each of the cosmetics was observed using a scanning electron microscope (SEM) : equipment＝Hitachi S-3400N scanning electron microscope, acceleration voltage＝15 kV.

The oil phase was a silicone oil (KF-96L-1CS; Shin-Etsu Chemical, Tokyo, Japan), with a 2% (w/w) surfactant (KF-6028; Shin-Etsu Chemical). The aqueous phase of the reactor droplet introduced into the square chamber was the E. coli culture solution (the 100-fold diluted solution of an overnight culture of E. coli). The aqueous phase of the carrier droplets was the LB medium containing antibiotics. The flow rates of the oil and the aqueous phases were both set at 8.8 μL min -1 . For a batch culture in the reactor droplet, no AC voltage was applied; i.e., the carrier and reactor droplets did not fuse. For a continuous culture in the reactor droplet, 300 V (peak-to-peak; 1 kHz) of an AC voltage was applied with an interval of T; under these conditions, the fusion duration, w, was approximately 1.5 s. The temperature was set at 37°C using a thermoplate (MATS-U52RA26; Tokai Hit, Shizuoka, Japan). Images were taken every 2 min for 72 h using an optical microscope (IX71) and a digital camera (EOS 60D), and then analyzed using an ImageJ. The turbidity was analyzed as described above for the optical measurements. Numerical analyses were performed using MATLAB.