Incorporation of Carbon Nanotubes into a Lyotropic Liquid Crystal by Phase Separation in the Presence of a Hydrophilic Polymer

Langmuir ◽  
2010 ◽  
Vol 26 (5) ◽  
pp. 3562-3568 ◽  
Author(s):  
Xia Xin ◽  
Hongguang Li ◽  
Stefan A. Wieczorek ◽  
Tomasz Szymborski ◽  
Ewelina Kalwarczyk ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Crystal ◽  
Phase Separation ◽  
Lyotropic Liquid Crystal ◽  
Hydrophilic Polymer

Ordered carbon nanotubes–n-dodecyl tetraethylene monoether liquid crystal composites through phase separation induced by poly(ethylene glycol)

2014 ◽  
Vol 16 (28) ◽  
pp. 14771-14780 ◽  
Author(s):  
Lin Wang ◽  
Xia Xin ◽  
Kai Guo ◽  
Mengzhou Yang ◽  
Xin Ma ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Crystal ◽  
Phase Separation ◽  
Ethylene Glycol ◽  
Separation Method ◽  
Lamellar Phase ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

We used a phase separation method to incorporate carbon nanotubes into the lamellar phase of a surfactant.

scholarly journals A tactile sensing array with tunable sensing ranges using liquid crystal and carbon nanotubes composites

2012 ◽  
Vol 177 ◽  
pp. 48-53 ◽  
Author(s):  
Yu-Tse Lai ◽  
Yung-Ming Chen ◽  
Tyng Liu ◽  
Yao-Joe Yang
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Crystal ◽  
Tactile Sensing

Lamellar Lyotropic Liquid Crystal Phases as a Carrier for Skin Delivery of Morus alba Stem Extract

2021 ◽  
Vol 901 ◽  
pp. 67-72
Author(s):  
Chein Yhirayha ◽  
Sakchai Wittaya-Areekul ◽  
Tasana Pitaksuteepong
Keyword(s):  
Liquid Crystal ◽  
Biological Activities ◽  
Polarized Light ◽  
Water Extract ◽  
Skin Penetration ◽  
Morus Alba ◽  
Lyotropic Liquid Crystal ◽  
Mixed Surfactant ◽  
Skin Delivery ◽  
Stem Extract

Morus alba stem extract possesses several biological activities. However, skin delivery of the extract is limited by the stratum corneum. In this study, lamellar lyotropic liquid crystal (LLC) was investigated for the potential application in the skin delivery of M. alba stem extract. The four formulations were developed and incorporated with M. alba stem extract at 3% w/w. These formulations were stored at room temperature in light-protected containers for 3 months. The optical pattern under polarized light microscope, viscosity and remaining of the extract were determined. The skin penetration enhancing property of the formulations was investigated using excised porcine ear skin model. The results showed that all formulations remained stable after 3-month storage. The two formulations exhibiting good penetration enhancing properties were F3 consisting of PEG-7 glyceryl cocoate/n-Dodecane/Water/extract (55.29/19.40/22.31/3.00 %w/w) and F4 consisting of mixed Surfactant/n-Dodecane/Water/extract (48.50/4.85/43.65/3.00 %w/w). The mixed surfactant composed of PEG-7 glyceryl cocoate/PEG-40 hydrogenated castor oil/Glyceryl oleate (40/33.24/26.76 %w/w). It can be concluded that the lamellar LLC formulations developed in this study can be used as a carrier for delivering of M. alba stem extract. The components of the formulations which play important roles are the oil and the surfactant.

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