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The recent advances of polymer technology allowed the introduction of plastic optical fiber in sensor design. The advantages of optical metrology with plastic optical fiber have attracted the attention of the scientific community, as they allow the development of low-cost or cost competitive systems compared with conventional technologies. In this paper, the current state of the art of plastic optical fiber technology will be reviewed, namely its main characteristics and sensing advantages. Several measurement techniques will be described, with a strong focus on interrogation approaches based on intensity variation in transmission and reflection. The potential applications involving structural health monitoring, medicine, environment and the biological and chemical area are also presented.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3478834 | PMC |
http://dx.doi.org/10.3390/s120912184 | DOI Listing |
Cell Signal
September 2025
Department of Anesthesiology and Operation, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, China. Electronic address:
Repeated exposure to gestational general anesthesia during pregnancy has been associated with neurodevelopmental damage and cognitive and social dysfunction in offspring. This study investigates the underlying mechanisms and therapeutic strategies for mitigating these effects. Behavioral tests revealed significant impairments in cognitive, social, and spatial learning abilities in the offspring of general anesthesia-treated mice, alongside delayed eye-opening, reduced body weight, and neuronal damage.
View Article and Find Full Text PDFOphthalmology
September 2025
Ophthalmic Plastic Surgery, Lions Eye Institute, Department of Ophthalmology, Albany Medical Center, Albany (Slingerlands), New York.
Purpose: To review the literature and identify the health-related quality-of-life (HRQL) outcomes that used a validated instrument in the assessment of upper blepharoplasty, blepharoptosis surgery, or combination surgery.
Methods: A literature search was last conducted in the PubMed database in January 2025 to identify all studies in the English language investigating HRQL outcomes that used a validated instrument in the assessment of upper blepharoplasty, blepharoptosis surgery, or combination surgery. The literature search yielded 773 citations, and 20 studies met the inclusion criteria.
Eur Phys J E Soft Matter
September 2025
Université Gustave Eiffel, ENPC, Institut Polytechnique de Paris, CNRS, Navier, 77454, Marne-la-Vallée, France.
We experimentally study the heterogeneity of strain in a granular medium subjected to oscillatory shear in a rotating drum. Two complementary methods are used. The first method relies on optical imaging and grain tracking, allowing us to compute some components of the strain tensor and their variance.
View Article and Find Full Text PDFSci Adv
September 2025
Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong 999077, China.
Optical superposition natural compound eyes (OSNCEs) allow circadian insects to thrive in varying light conditions thanks to their unique anatomical structures. This provides a blueprint for optical superposition artificial compound eyes (OSACEs) that can adapt to different illumination intensities. However, OSACEs have received limited research attention until recently, with most studies focusing on apposition compound eyes that operate only in bright light.
View Article and Find Full Text PDFJ Biomed Mater Res B Appl Biomater
September 2025
Department of Restorative Dentistry and Prosthodontics, UTHealth Houston School of Dentistry, Houston, USA.
Resin composites have become the preferred restorative material in modern dentistry due to their superior esthetics, improved physical properties, and advancements in curing technologies. To enhance their clinical performance, manufacturers continuously refine the resin matrix and optimize filler particle size and shape, improving both mechanical strength and optical characteristics. Evaluating optical properties is crucial for predicting the performance of resin composites over time, particularly in maintaining color, gloss, translucency, and overall appearance.
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