| 초록 |
The investigation of supramolecular host–guest interactions at the molecular level is important for finely modulating supramolecular systems. Herein, we have reported the simple way to quantify the adhesion energy of host-guest pairs by using surface forces apparatus (SFA) with converting interaction force into adhesion energy. The interaction force measurement was performed between cyclodextrin (CD)-modified surfaces and ditopic adamantane (DAd) molecules according to the DAd concentration and the CD cavity size. The measured adhesion forces were increased with higher DAd concentration. In addition, only β-CD-modified surface showed significant adhesion force. Based on the measured adhesion forces, the molecular adhesion energy of a single host–guest inclusion complex was also evaluated (~9.69 kBT). This study could suggest the simple way to understanding and applications of supramolecular chemistry such as molecular actuators, underwater adhesives, and biosensors. |
