Optical Hydrogel Detector for pH Measurements
Abstract
:1. Introduction
2. Methodology
2.1. Materials
2.2. Fabrication of the pH Sensor
2.3. Measurement Techniques
3. Results and Discussion
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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pH-Responsive Hydrogel | pH Range | Sensitivity | Ref. |
---|---|---|---|
Poly(hydroxyethyl methacrylate)/methacrylic acid (pHEMA/MAA) | 4–7 | 0.07 nm/pH | [34] |
Poly(acrylic acid)/poly (allylamine hydrochloride) | 3–7 | 0.45 a.u/pH | [35] |
Poly(ethylene glycol diacrylate) | 2–6.5 | –0.41 nm/pH | [33] |
Poly(hydroxyethyl methacrylate)/methacrylic acid | 1–7 | 0.30 nm/pH | [36] |
pHEMA/poly(acrylic acid) | 4.5–7 | 6.5%/pH or 36 µW/pH | This study |
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Alqurashi, Y.; Elsherif, M.; Hendi, A.; Essa, K.; Butt, H. Optical Hydrogel Detector for pH Measurements. Biosensors 2022, 12, 40. https://doi.org/10.3390/bios12010040
Alqurashi Y, Elsherif M, Hendi A, Essa K, Butt H. Optical Hydrogel Detector for pH Measurements. Biosensors. 2022; 12(1):40. https://doi.org/10.3390/bios12010040
Chicago/Turabian StyleAlqurashi, Yousef, Mohamed Elsherif, Asail Hendi, Khamis Essa, and Haider Butt. 2022. "Optical Hydrogel Detector for pH Measurements" Biosensors 12, no. 1: 40. https://doi.org/10.3390/bios12010040