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用于传感器应用的Fe₃O₄嵌入聚（苯乙烯）/聚（噻吩）核/壳纳米颗粒及其水凝胶图案的制备

Preparation of Fe₃O₄-Embedded Poly(styrene)/Poly(thiophene) Core/Shell Nanoparticles and Their Hydrogel Patterns for Sensor Applications.

作者信息

Kim Yong Seok, Lee Hyun Jong, Govindaiah Patakamuri, Son Woohyun, Koh Won-Gun, Cheong In Woo, Kim Jung Hyun

机构信息

Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemoon-Gu, Seoul 120-749, Korea.

Department of Applied Chemistry, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 702-701, Korea.

出版信息

Materials (Basel). 2014 Jan 2;7(1):195-205. doi: 10.3390/ma7010195.

DOI:10.3390/ma7010195
PMID:28788450
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5453122/
Abstract

This research describes the preparation and sensor applications of multifunctional monodisperse, Fe₃O₄ nanoparticles-embedded poly(styrene)/poly(thiophene) (Fe₃O₄-PSt/PTh), core/shell nanoparticles. Monodisperse Fe₃O₄-PSt/PTh nanoparticles were prepared by free-radical combination (mini-emulsion/emulsion) polymerization for Fe₃O₄-PSt core and oxidative seeded emulsion polymerization for PTh shell in the presence of FeCl₃/H₂O₂ as a redox catalyst, respectively. For applicability of Fe₃O₄-PSt/PTh as sensors, Fe₃O₄-PSt/PTh-immobilized poly(ethylene glycol) (PEG)-based hydrogels were fabricated by photolithography. The hydrogel patterns showed a good sensing performance under different H₂O₂ concentrations. They also showed a quenching sensitivity of 1 µg/mL for the Pd metal ion within 1 min. The hydrogel micropatterns not only provide a fast water uptake property but also suggest the feasibility of both H₂O₂ and Pd detection.

摘要

本研究描述了多功能单分散的、嵌入四氧化三铁纳米颗粒的聚（苯乙烯）/聚（噻吩）（Fe₃O₄-PSt/PTh）核壳纳米颗粒的制备及其传感器应用。通过自由基组合（微乳液/乳液）聚合法制备Fe₃O₄-PSt核的单分散Fe₃O₄-PSt/PTh纳米颗粒，在FeCl₃/H₂O₂作为氧化还原催化剂存在的情况下，分别通过氧化引发乳液聚合法制备PTh壳。为了将Fe₃O₄-PSt/PTh用作传感器，通过光刻法制备了固定有Fe₃O₄-PSt/PTh的聚（乙二醇）（PEG）基水凝胶。水凝胶图案在不同的过氧化氢浓度下表现出良好的传感性能。它们对钯金属离子在1分钟内也表现出1μg/mL的猝灭灵敏度。水凝胶微图案不仅具有快速吸水性能，还表明了检测过氧化氢和钯的可行性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/9ffb7cb43ca5/materials-07-00195f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/b5b638549bb6/materials-07-00195f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/91d45d11b64a/materials-07-00195f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/5053d9c24b86/materials-07-00195f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/358bb26c9203/materials-07-00195f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/72436854ebda/materials-07-00195f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/e5a67f23c487/materials-07-00195f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/ac97450ae409/materials-07-00195f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/9ffb7cb43ca5/materials-07-00195f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/b5b638549bb6/materials-07-00195f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/91d45d11b64a/materials-07-00195f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/5053d9c24b86/materials-07-00195f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/358bb26c9203/materials-07-00195f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/72436854ebda/materials-07-00195f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/e5a67f23c487/materials-07-00195f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/ac97450ae409/materials-07-00195f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/95cc/5453122/9ffb7cb43ca5/materials-07-00195f8.jpg

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本文引用的文献

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A facile and high-recovery material for rare-metals based on a water-soluble polyallylamine with side-chain thiourea groups.

Chem Commun (Camb). 2013-6-21

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Biosens Bioelectron. 2011-11-28

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Optical detection of glucose and acetylcholine esterase inhibitors by H2O2-sensitive CdSe/ZnS quantum dots.

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Anal Chem. 2006-7-1

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