전도성 고분자가 첨가된 생체 모방형 분자 각인 고분자 테르펜 센서 = Biomimetic MIP Terpene Sensors Adding Conductive Polymers

다국어 초록 (Multilingual Abstract)

Biomimetic terpene sensors which have high sensitivity and stability have been fabricated using moleculary imprinted polymer (MIP) technology, Since it is impossible to make a resistive type sensor due to the high resistance of MIP, we improved the sensor by adding conductive polymers. We investigated the sensitivity of resistive type sensors with nano particles depending on the amount of conductive polymers. The MIP membrane contained the methacrylic acid as functional monomer and ethylene glycol dimethacrylate as cross linker, which formed specific cavities originated by the target terpene molecules. The mixture of MIP and the conductive polymer was coated on the patterns of interdigit electrodes on the alumina substrate. The fabricated sensors showed their highest specific sensitivities exposed to 500ppm target gases: limonene 0.055 at 40% of amount of conductive polymers and geraniol 5.84ⅹ10-4 at 20% of amount of conductive polymers. In conclusion, we found that the terpene sensors are affected by the target molecules, functional monomers and the conductive polymers.

참고문헌 (Reference)

1 장은정, "UV 중합에 의한 이성질체 분리막 제조와 특성" 한국공업화학회 19 (19): 287-294, 2008

2 K. S. Ryu, "The electrical conductivity of polyaniline film depending on the doping temperature" 45 (45): 282-285, 2001

3 E. Pasquinet, "Synthesis and absorption on gold surfaces of a functionalized thiol : elaboration and test of a new nitroaromatic gas sensor" 272 : 21-27, 2004

4 H. Eun, "Sulfate ion sensing based on a quartz-crystal microbalance immobilized with barium sulfate crystals grown on a selfassembled monolayer of phosphorylated 11-mercapto-1- undecanol" 375 : 155-165, 1998

5 M. Yamada, "Smoke sensor using mass controlled layer-bylayer self-assembly of polyelectrolytes films" 64 : 124-127, 2000

6 Y. Liu, "Quartz crystal biosensor for real-time monitoring of molecular recognition between protein and small molecular medical agents" 19 : 9-19, 2003

7 N. Iqbal, "QCM-arrays for sensing terpenes in fresh and dried herbs via bio-mimetic MIP layers" 10 : 6361-6376, 2010

8 W. H. King Jr., "Piezoelectric sorption detector" 36 (36): 1735-1739, 1964

9 H. Wang, "Multi-dimensional liquid phase based separations in proteomics" 787 : 11-18, 2003

10 B. P. Tokin, "Fitontsid, 2nd ed" Moscow 1951

11 B. S. Vicente, "Continuous solid phase extraction and preconcentration of bisphenol A inaqueous samples using molecularly imprinted columns" 380 : 115-122, 2004

12 R. Sun, "Construction and application of a stoichiometric displacement model for retention in chiral recognition of molecular imprinting" 1055 : 1-9, 2004

13 N. Tsuru, "A quartz crystal microbalance sensor coated with MIP for bisphenol A and its properties" 499 : 380-385, 2006