1 propanol

Soy phosphatidylcholine (soy-PC; lecithin from soybean) was purchased from Ilshin wells (Seoul, Korea). Cholesterol (CH; > 99% purity), trehalose dihydrate, sucrose, and calcein were purchased from Sigma-Aldrich Co. (St. Louis, MO, USA). 1,6-Diphenyl-1,3,5-hexatriene (DPH) and 6-dodecanoyl-N,N-dimethyl-2-naphthylamine (Laurdan) were acquired from Molecular Probes (Eugene, OR, USA). Acetone, methanol, 1-propanol, and isopropanol (IPA) were purchased from Daejung (Siheung, Gyeonggi-do, Korea). All other chemicals were obtained from Sigma-Aldrich Co. and used without further purification.

The boron nitride nanotubes (BNNTs) were prepared via the high-temperature RF-plasma methods using h-BN with a particle size of 70 nm as the BN source precursor at the High-enthalpy Plasma Research Center at Jeonbuk National University (Wanju, Republic of Korea). The tert-butanol (t-BA) was purchased from Junsei. Methanol, ethanol, 1-propanol, and iso-propanol were purchased from Daejung chemicals. The commercial hexagonal boron nitride (hBN) samples in sizes of 70 nm, 200~500 nm, and over 1 μm were purchased from MKnano, Momentives, and Denka, respectively. The impurities were collected by recovering and drying the precipitated materials after purification. The sodium cholate hydrate from Sigma-Aldrich was used for liquid crystal experiments.