skip navigation bar
go content
go menu


Representative Research Publications

Helical-shaped silica nanotubes with hydrophilic inside and lipophilic outside 2018 > Representative Research Publications > Research Results Home

Helical-shaped silica nanotubes with hydrophilic inside and lipophilic outside

  • Applied Surface Science / 2018 January
  • Jin, Jong Sung (Corresponding author)

If you imagine a model of twine, rope, DNA, it is twisted in one direction. The nano-sized shape with such a twisted structure is made, a hollow tube is prepared inside, and further, a -OH functional group with water is introduced on the inner surface, and a -C8H17 lipophilic functional group which is close to the oil is selectively and published the results of the world's first confirmation that it was synthesized properly using KBSI surface analysis equipment, in the surface science specialist, Applied Surface Science.

Using the organic gelate as a template, which has a mirror image that does not overlap with each other like the right hand and the left hand, we made a twisted silica nanotube in one direction as shown in the figure below. Previously, when silica nanotubes were obtained by calcination, only hydrophilic Si-OH functional groups were obtained both inside and outside the silica nanotubes.

Figure. 1 Manufacturing process of silica nanotubes having different functions inside / outsideFigure. 1 Manufacturing process of silica nanotubes having different functions inside / outside

In this study, the lipid hydrocarbons were first derivatized on the outer surface of the silica nanotubes in the compound-filled silica nanotubes, and then washed to remove the gelate present inside the silica nanotubes,Produced a silica nanotube having amphiphilic nature in which a hydrophilic group is retained and only a hydrophobic group is introduced outside.

Figure. 2 Analysis instrument (TOF-SIMS) and analysis resultFigure. 2 Analysis instrument (TOF-SIMS) and analysis result

This research has developed a new analytical method for the first time in the world to identify the compounds manufactured in each process by using research equipment such as TEM, SEM, TOF-SIMS, etc., which are constructed and supported by the Busan Center of Korea Basic Science Institute.

The technology that can be used to differentiate inside and outside of the silica nanotube will be used as an energy storage material that stores specific metal ions that can be used only as an energy source inside the tube.In addition, it can be used as a source material that can be used as development material and separation analysis material of an enantiomer drug raw materials having one directionality.

Back  to List