Characterization of a microgravimetric sensor based on pH sensitive hydrogels

被引：127

作者：

Richter, A ^{[1
]}

Bund, A

Keller, M

Arndt, KF

机构：

[1] Tech Univ Dresden, Inst Precis Engn & Elect Design, D-01062 Dresden, Germany

[2] Tech Univ Dresden, Inst Phys Chem & Electrochem, D-01062 Dresden, Germany

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2004年 / 99卷 / 2-3期

关键词：

smart hydrogel; hydrogel sensor; hydrogel application; phase transition; quartz crystal microbalance; pH sensor; poly(vinyl alcohol); poly(acrylic acid);

D O I：

10.1016/j.snb.2004.01.011

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The reversible and reproducible phase transition behavior of "stimuli-responsive" or "smart" hydrogels enables their use as materials for chemical and pH sensors in liquids. Using the quartz crystal microbalance (QCMB) technique, the principal behavior of hydrogel coated single sensors in dependence of changes in pH is presented. The general sensor properties of polyelectrolytic hydrogels, the detection possibilities and limits, and the response time of such sensors were investigated and discussed. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：579 / 585

页数：7

共 40 条

[1]

Arndt KF, 2000, POLYM ADVAN TECHNOL, V11, P496, DOI 10.1002/1099-1581(200008/12)11:8/12<496::AID-PAT996>3.3.CO

[2]

2-Z

[3]

Arndt KF, 1999, ACTA POLYM, V50, P383, DOI 10.1002/(SICI)1521-4044(19991201)50:11/12<383::AID-APOL383>3.3.CO

[4]

2-Q

[5] Viscoelastic characterization of electroactive polymer films at the electrode/solution interface [J].

Bandey, HL ;

Hillman, AR ;

Brown, MJ ;

Martin, SJ .

FARADAY DISCUSSIONS, 1997, 107 :105-121

[6] Micromechanical cantilever as an ultrasensitive pH microsensor [J].

Bashir, R ;

Hilt, JZ ;

Elibol, O ;

Gupta, A ;

Peppas, NA .

APPLIED PHYSICS LETTERS, 2002, 81 (16) :3091-3093

[7] Functional hydrogel structures for autonomous flow control inside microfluidic channels [J].

Beebe, DJ ;

Moore, JS ;

Bauer, JM ;

Yu, Q ;

Liu, RH ;

Devadoss, C ;

Jo, BH .

NATURE, 2000, 404 (6778) :588-+

[8] Characterization of the viscoelasticity and the surface roughness of electrochemically prepared conducting polymer films by impedance measurements at quartz crystals [J].

Bund, A ;

Schneider, M .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (09) :E331-E339

[9] Study of layer-by-layer self-assembled viscoelastic films on thickness-shear mode resonator surfaces [J].

Calvo, EJ ;

Forzani, ES ;

Otero, M .

ANALYTICAL CHEMISTRY, 2002, 74 (14) :3281-3289

[10] MEASUREMENT OF VISCOELASTIC CHANGES AT ELECTRODES MODIFIED WITH REDOX HYDROGELS WITH A QUARTZ-CRYSTAL DEVICE [J].

CALVO, EJ ;

DANILOWICZ, C ;

ETCHENIQUE, R .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1995, 91 (22) :4083-4091

← 1 2 3 4 →