The techniques for fabricating a hollow optical fiber with an inner silver layer and a cyclic olefin polymer (COP) layer have been improved to reduce the surface roughness of these two layers. The loss spectrum was thereby drastically reduced over a wide wavelength range, from visible to near infrared. Optimization of the COP layer thickness resulted in low loss simultaneously at several key laser wavelengths. Infrared hollow fiber with low loss was developed for Er:YAG and Nd:YAG lasers. It can also deliver green and red pilot beams with low loss. Use of this fiber in therapeutic and pilot lasers should prove useful for research and development in laser medicine.
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http://dx.doi.org/10.1364/ao.45.006736 | DOI Listing |
Sci Immunol
January 2025
Division of Hematology and Oncology, Department of Medicine, University of Florida, Gainesville, FL 32610, USA.
Chronic low-grade inflammation observed in older adults, termed inflammaging, is a common feature underlying a multitude of aging-associated maladies including a decline in hematopoietic activity. However, whether suppression of inflammaging can preserve hematopoietic health span remains unclear, in part because of a lack of tools to measure inflammaging within hematopoietic stem cells (HSCs). Here, we identify thrombospondin-1 (Thbs1) as an essential regulator of inflammaging within HSCs.
View Article and Find Full Text PDFPLoS One
January 2025
Department of ENT, Head and Neck Surgery, Sri Ramachandra Institute of Higher Education and Research (Deemed to be University), Chennai, Tamil Nadu, India.
Aim: The perspectives and practices of healthcare professionals regarding ototoxicity in individuals with head and neck cancers are important for the implementation of ototoxicity monitoring. The current study aims to explore the oncologist's awareness and perspectives of ototoxicity and ototoxicity monitoring for individuals with head and neck cancer in a South-Indian district, using qualitative semi-structured interviews.
Method: The COnsolidated criteria for REporting Qualitative research (COREQ) Checklist was used to guide the method of the current qualitative study.
ACS Sens
January 2025
College of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Changchun 130012, China.
Superior to traditional multiplex photoelectrochemical (PEC) sensors, integrated multitarget assay on a single reconstructive electrode interface is promising in real-time detection through eliminating the need of specialized instrumentation and cumbersome interfacial modifications. Current interface reconstruction approaches including pH modulation and bioenzyme cleavage involve biohazardous and time-consuming operations, which cannot meet the demand for rapid, eco-friendly, and portable detection, which are detrimental to the development of multiplex PEC sensors toward portability. Herein, we report a pioneer work on IR-driven "four-to-one" multisignal conditioning to facile reconfigure electrode interface for multitarget detection via photoelectrochemical/photothermal dual mode.
View Article and Find Full Text PDFLasers Med Sci
January 2025
Oral Biology Department, Faculty of Dentistry, Suez Canal University, P.O.Box:41523, Ismailia, Egypt.
This study aims to investigate and compare the effects of short and long-term application of low-level laser therapy on the mandibular alveolar process of osteoporotic rats. Forty adult male albino rats were included in this study. After animal grouping, the experimental group received dexamethasone (0.
View Article and Find Full Text PDFEur J Nutr
January 2025
School of Physical Education and Sport Science, National and Kapodistrian University of Athens, 17237, Athens, Greece.
Purpose: Protein supplementation has been proposed as an effective dietary strategy for maintaining or increasing skeletal muscle mass and improving physical performance in middle-aged and older adults. Diabetes mellitus exacerbates muscle mass loss, leading to many older adults with type 2 diabetes mellitus (T2DM) experiencing sarcopenia, and vice versa. Our objective was to assess the impact of increased dietary protein intake on muscle mass, strength, physical performance, and the progression of T2DM in middle-aged and older adults diagnosed with this condition.
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