...ng Kim Department of Chemistry, Korea University, 145, Anam-ro, Seongbu-gu, Seoul, 136-704, Korea E-mailjongskim@korea.ac.kr 김종승 1986 공주사범대학 화학교육과 학사 1988 충남대학교 대학원 유기화학 석사 1993 Texas Tech University 유기화학 박사 1988-1989 한국화학연구원 연구원 1993-1994 University of Houston Post-doc. 1994-2003 건양대학교 부교수 2003-2007 단국대학교 서울 교수 2007-현재 고려대학교 서울 교수 2009-현재 교육과학기술부 창의적연구진흥사업단 발광센서재료연구단 단장 1. Introduction Nanotechnology can give us with unprecedented understanding of materials and devices that are useful in a variety of fields. By tuning the structure on the nanoscale, one can expand the range of performance of existing chemicals and materials. Since the covalent bonds between atoms are precisely defined within dimensions lower than 1 Å, chemists have become accustomed to handling and constructing mo...

특 집 | Calixarenes on Gold Surfaces 22 고분자 과학과 기술 Polymer Science and Technology Figure 1. a A sensor chip configuration, b SPR angle shifts with respect to various concentrations of several metal ions. Solid line is the linear fit γ2 = 0.9928 Other lines were used to guide eyes. in the expansive field of nanotechnology.26 When the dimensions of the gold are reduced to nanoscale, the optical properties are dominated by a collective oscillation of conduction electrons in resonance with incident electromagnetic radiation. This phenomenon is termed surface plasmon resonance SPR The surface plasmon absorption band, and consequently the color of a metal AuNP solution, is dependent on a number of parameters, the size and shape of the particle, the type of gold, the dielectric properties of the medium, and the distance between particles.27-30 AuNPs, with an interparticle distance greater than the average particle diameter, appear red as a consequence of the surface plasmon...

특 집 | Calixarenes on Gold Surfaces 24 고분자 과학과 기술 Polymer Science and Technology calix[4]arene aromatic rings.38 The sensing abilities of the SAMs of 3 and 4 for other cations were also tested. However, negligible changes in the value of Rct were noted for Na+ and K+, respectively, suggesting that neither Na+ nor K+ can form stable complexes with SAMs of 3 or 4. Echegoyen et al. also reported the synthesis, SAM formation and characterization, and metal cation recognition properties of three conformational isomers of bis-thioctic ester derivatives of p-tert-butylcalix [4]crown-6, cone 5, 1,3-alternate 6 and partial-cone 7.39 Additionally, one bis-thioctic ester derivative of p-tert-butylcalix[4]arene 8 was also synthesized. The SAMs of these compounds were prepared and characterized via electrochemistry, reflection-absorp tion infrared spectroscopy RAIRS and contact angle measurements. The binding properties of the SAMs of these compounds with metal cations were syste...

특 집 | Calixarenes on Gold Surfaces 26 고분자 과학과 기술 Polymer Science and Technology Figure 4. Gold-supported calixarene 14. electrode surfaces and the negati vely-charged Fe CN 63-/4- redox probe in the electrolyte solution. A dramatic fluorescence spectral change was noted upon the addition of F- and AcO- to 13. By way of contrast, the fluorescence of 13 with various anions such as Cl-, Br-, NO3-, HSO4-, and H2PO4-, led to essentially no change in excimer emission and a slight enhancement of monomer emission. 4. Biomolecule Sensors To explore the potential applications of calixarenes as ammonium sensors, Echegoyen et al. decided to prepare suitable receptors based on calix[6]arene.43 Compound 14, with a rigid cavity immobilized on gold surfaces via self-assembly, can function as a remarkably efficient aniline sensor. The binding abilities between the SAMs of 14 and the alkylammonium cations are not very strong, as the observed current reduction is not very pronounced. ...

특 집 | Calixarenes on Gold Surfaces 28 고분자 과학과 기술 Polymer Science and Technology 19. S. Sameni, C. Jeunesse, D. Matt, and J. Harrowfield, Chem. Soc. Rev., 38, 2117 2009 20. L. Mutihac, J. H. Lee, J. S. Kim, and J. Vicens, Chem. Soc. Rev., 40, 2777 2011 21. A. Dondoni and A. Marra, Chem. Rev., 110, 4949 2010 22. I. Leray and B. Valeur, Eur. J. Inorg. Chem., 3525 2009 23. J. S. Kim, S. Y. Lee, J. Yoon, and J. Vicens, Chem. Comm., 4791 2009 24. Y.-S. Zheng and J. Luo, J. Incl. Phenom. Macrocycl. Chem., 71, 35 2011 25. a M. C. Daniel and D. Astruc, Chem. Rev., 104, 293 2004 , b A. C. Templeton, M. P. Wuelfing, and R. W. Murray, Acc. Chem. Res., 33, 27 2000 26. C. Vericat, M. E. Vela, G. Benitez, P. Carroand, and R. C. Salvarezza, Chem. Soc. Rev., 39, 1805 2010 27. S. Link and M. A. El-Sayed, Rev. Phys. Chem., 19, 409 2000 28. P.V. Kamat, J. Phys. Chem. B, 106, 7729 2002 29. K. Kneipp, H. Kneipp, I. Itzkan, R. R. Dasari, and M. S. Feld, Chem. Rev., 99, 2957 1999 30. a G. ...