The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.
Micromechanical cantilever as an ultrasensitive pH microsensor
Abstract
We report on a pH sensor with ultrahigh sensitivity based on a microcantilever structure with a lithographically-defined crosslinked copolymeric hydrogel. Silicon-on-insulator wafers were used to fabricate cantilevers on which a polymer consisting of poly(methacrylic acid) (PMAA) with poly(ethylene glycol) dimethacrylate was patterned using free-radical UV polymerization. As the pH around the cantilever was increased above the pKa of PMAA, the polymer network expanded and resulted in a reversible change in surface stress causing the microcantilever to bend. Excellent mechanical amplification of polymer swelling as a function of pH change within the dynamic range was obtained, with a maximum deflection sensitivity of 1 nm/5×10−5 ΔpH.
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Cites
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Self-citationLight-Addressable Potentiometric Sensor for Biochemical Systems
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Self-citationPhysiologically Responsive Hydrogels
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Hydrogels in Biology and Medicine: From Molecular Principles to Bionanotechnology
Peppas, N. A., Hilt, J. Z., Khademhosseini, A., & Langer, R. (2006) · Advanced Materials · doi:10.1002/adma.200501612 · Cited by 4,109
Self-citationMicro- and nanomechanical sensors for environmental, chemical, and biological detection
Waggoner, P. S., & Craighead, H. G. (2007) · Lab on a Chip · doi:10.1039/b707401h · Cited by 678
Stimuli-responsive hydrogel thin films
Tokarev, I., & Minko, S. (2009) · Soft Matter · doi:10.1039/b813827c · Cited by 579
Biomimetic Hydrogel‐Based Actuating Systems
Ionov, L. (2013) · Advanced Functional Materials · doi:10.1002/adfm.201203692 · Cited by 469
BioMEMS: state-of-the-art in detection, opportunities and prospects
Bashir, R. (2004) · Advanced Drug Delivery Reviews · doi:10.1016/j.addr.2004.03.002 · Cited by 462
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Metadata
- Authors
- Bashir, R., Hilt, J. Z., Elibol, O., Gupta, A., & Peppas, N. A.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2002-10-14
- Volume
- 81
- Issue
- 16
- Pages
- 3091-3093
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2114659148
- Cited by
- 300
- References
- 16
- FWCI
- 9.11
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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