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http://dx.doi.org/10.1117/1.JBO.26.1.019805 | DOI Listing |
Mikrochim Acta
June 2025
College of Communications and Electronics Engineering, Qiqihar University, Qiqihar, 161006, Heilongjiang, China.
A dual-frequency passive radio frequency identification (RFID) gas sensor based on zinc oxide (ZnO)/molybdenum disulfide (MoS)/tungsten trioxide (WO)/reduced graphene (rGO) is proposed for indoor detection of formaldehyde and ammonia concentrations. The antenna model is designed on the antenna simulation software, and then, the antenna is made by the engraving mechanism. Nano-sensitive materials are prepared by the hydrothermal method to characterize the materials, and then, different combinations of materials are coated on both sides of the antenna to produce gas-sensitive sensors.
View Article and Find Full Text PDFJ Biomed Opt
January 2021
National University of Ireland, Tissue Optics and Microcirculation Imaging, Galway, Ireland.
An error in the 2nd author's name is corrected.
View Article and Find Full Text PDFJ Biomed Opt
January 2021
National University of Ireland, Tissue Optics and Microcirculation Imaging, Galway, Ireland.
Significance: Assessment of disease using optical coherence tomography is an actively investigated problem, owing to many unresolved challenges in early disease detection, diagnosis, and treatment response monitoring. The early manifestation of disease or precancer is typically associated with subtle alterations in the tissue dielectric and ultrastructural morphology. In addition, biological tissue is known to have ultrastructural multifractality.
View Article and Find Full Text PDFJ Biophotonics
June 2020
Tissue Optics and Microcirculation Imaging Facility, National Biophotonics and Imaging Platform, School of Physics, National University of Ireland, Galway, Ireland.
Corneal cross-linking (CXL) using ultraviolet-A (UVA) irradiation with a riboflavin photosensitizer has grown from an interesting concept to a practical clinical treatment for corneal ectatic diseases globally, such as keratoconus. To characterize the corneal structural changes, existing methods such as X-ray microscopy, transmission electron microscopy, histology and optical coherence tomography (OCT) have been used. However, these methods have various drawbacks such as invasive detection, the impossibility for in vivo measurement, or limited resolution and sensitivity to structural alterations.
View Article and Find Full Text PDF