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Humidity-Sensing Inverse Opal Hydrogels
Abstract
Soft material hydrogel sensors have seen increased interest recently. Most of these sensors are used in an aqueous environment. In this study, we depart from this trend and analyze the ability of a periodic hydrogel structure to respond to variations in ambient humidity through an optical change. First, a polyacrylamide inverse opal hydrogel structure was created from a colloidal crystal template. Next, this material was tested under various humidity conditions and responded to these changes by shifting its optical reflection peak noticeably within the visible wavelength range. This effect opens the doors for these materials as humidity sensors. The kinetics of the peak shifts was also observed, showing a rapid response to ambient humidity changes. Finally, the structural dimension change is compared through peak shifts, Fabry-Perot fringes of the optical cavity, and scanning electron microscopy observations.
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Citations
Cited by
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Galisteo‐López, J. F., Ibisate, M., Sapienza, R., Froufe‐Pérez, L. S., Blanco, Á., & López, C. (2011) · Advanced Materials · doi:10.1002/adma.201000356 · Cited by 668
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Tavakoli, J., & Tang, Y. (2017) · Polymers · doi:10.3390/polym9080364 · Cited by 434
Colorful humidity sensitive photonic crystal hydrogel
Tian, E., Wang, J., Zheng, Y., Song, Y., Jiang, L., & Zhu, D. (2008) · Journal of Materials Chemistry · doi:10.1039/b717368g · Cited by 344
Armstrong, E., & O'Dwyer, C. (2015) · Journal of Materials Chemistry C · doi:10.1039/c5tc01083g · Cited by 342
Direct‐Write Assembly of 3D Hydrogel Scaffolds for Guided Cell Growth
Barry, R. A., Shepherd, R. F., Hanson, J. N., Nuzzo, R. G., Wiltzius, P., & Lewis, J. A. (2009) · Advanced Materials · doi:10.1002/adma.200803702 · Cited by 295
Self-citationYang, C., Liu, Z., Chen, C., Shi, K., Zhang, L., Ju, X.-J., Wang, W., Xie, R., & Chu, L.-Y. (2017) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.7b01710 · Cited by 265
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Holographic Sensors: Three-Dimensional Analyte-Sensitive Nanostructures and Their Applications
Yetisen, A. K., Naydenova, I., da Cruz Vasconcellos, F., Blyth, J., & Lowe, C. R. (2014) · Chemical Reviews · doi:10.1021/cr500116a · Cited by 224
Yetisen, A. K., Butt, H., Volpatti, L. R., Pavlichenko, I., Humar, M., Kwok, S. J. J., Koo, H., Kim, K. S., Naydenova, I., Khademhosseini, A., et al. (2016) · Biotechnology Advances · doi:10.1016/j.biotechadv.2015.10.005 · Cited by 192
Metadata
- Authors
- Barry, R. A., & Wiltzius, P.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-12-23
- Volume
- 22
- Issue
- 3
- Pages
- 1369-1374
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2077024043
- Cited by
- 229
- References
- 0
- FWCI
- 5.33
- Type
- journal article
- Language
- en
- Open access
- closed
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