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Fabrication of Multidimensional Metal/Conducting Polymer Hybrid Nanoparticles and Their Chem/Bio Sensor Applications : 다차원구조 금속/전도성 고분자 하이브리드 나노입자의 제조 및 화학/바이오 센서로의 응용

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Authors

이준섭

Advisor
장정식
Major
공과대학 화학생물공학부
Issue Date
2015-08
Publisher
서울대학교 대학원
Keywords
conducting polymersinorganicnoble metalmetal oxidehybrid nanomaterialsensorhydrogennerve agentdopamineendocrine disruptor
Description
학위논문 (박사)-- 서울대학교 대학원 : 화학생물공학부, 2015. 8. 장정식.
Abstract
In recent decades, the synthesis of novel materials with improved
properties and performance is a continually expanding frontier at the material
science. In this regard, hybrid nanomaterials, composed of organic/inorganic
hybrid, exhibit beneficial properties originated from each component and
satisfy economical and environmental challenges of industry. Among diverse
hybrid nanomaterials, metal-containing polymer hybrid nanomaterials are great
interest in various applications including energy storage system, catalyst, and
sensing device. Although various preparation methods have been devoted to
the synthesis of metal/polymer hybrid nanomaterials, there is still lack of
studies on the maximization surface area of nanomaterials through morphology
control.
This dissertation describes the fabrication of diverse multidimensional
metal/conducting polymer hybrid nanoparticles with facile approaches and
characterizes of as the prepared hybrid materials for sensor transducer
application. Firstly, multidimensional FeOOH nanoneedle-decorated hybrid
polypyrrole nanoparticles (PFFs) were fabricated using dual-nozzle
electrospray and heat stirring steps for ultrasensitive nerve agent simulant
ii
(DMMP) chemical sensor. Multidimensional urchin-like polypyrrole (U_PPy)
hybrid nanoparticles were fabricated through pyrrole monomer vapor
deposition polymerization (VDP) of the PFFs and applied as hazardous gas
(NH3/MeOH) chemical sensor. Aptamer-functionalized multidimensional
carboxylated polypyrrole nanoparticles (A_M_CPPyNPs) were synthesized by
using 3-carboxylated pyrrole monomer VPD on the PFFs surface and binding
aptamer functionalization for sensing endocrine disruptor (bisphenol A)
molecule. Secondly, multidimensional noble metal architecture decorated
conducting polymer nanoparticles also suggest by using chemical reduction
process. Multidimensional platinum particle decorated carboxylated
polypyrrole nanoparticles (Pt_CPPys) were fabricated through chemical
process using reducing agent (NaBH4) for detecting neurotransmitter molecule
(dopamine). Multidimensional porous palladium architecture decorated
carboxylated polypyrrole nanoparticles (M_PdCPPys) were also synthesized
through alkylation and following reduction process to apply hydrogen gas
detect sensing system.
This dissertation provides the possibility of various types of
metal/conducting polymer hybrid nanomaterials exhibited maximizing surface
iii
area through multidimensional architecture. The nanomaterials presented in
this dissertation could be applied diverse sensing systems such as hazardous
gas chemical sensor, non-enzyme field-effect-transistor (FET) sensor, and
aptamer FET sensor. In addition, this dissertation suggests innovative
methodological insight to simple preparation of various nanomaterials.
Language
English
URI
https://hdl.handle.net/10371/119743
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