Objectives: We evaluated the effect of age, radiotherapy, insertion time of prosthesis, the period between radiotherapy and insertion time on in situ lifetime of Provox, voice quality and complications.
Patients And Methods: The study included the use of 62 Provox voice prosthesis in 50 total laryngectomy patients (46 males, 4 females; mean age 61 years; range 43 to 77 years). The patients visited our clinic regularly every three months for the first year after insertion and every six months in subsequent years. The ease of use and complications of prothesis and voice quality of the patients were evaluated.
Results: The mean in situ lifetime was 24 months (range 1 to 49 months). Age, radiotherapy, insertion time of the prosthesis, the period between radiotherapy and the insertion time had no influence on the in situ lifetime of Provox. These variables were not associated with the complications of the prosthesis. A statistically significant good voice quality was found in nonirradiated patients and those in whom the prosthesis was inserted between 6 and 24 months after laryngectomy. The use of Provox was easier in nonirradiated patients than irradiated patients (p<0.001).
Conclusion: In situ lifetime of Provox was not influenced by age, radiotherapy, insertion time, and the period between radiotherapy and insertion time of prosthesis. We believe that the patient factor is the most important factor that affect the in situ lifetime of Provox.
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January 2025
Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China.
Gold (Au) nanoclustersare promising photocatalysts for biomedicine, sensing, and environmental remediation. However, the short carrier lifetime, inherent instability, and unclear charge transfer mechanism hinder their application. Herein, the Au nanoclusters decorated with three different isomers of o-Aminophenol, m-Aminophenol, and p-Aminophenol are synthesized, namely o-Au, m-Au, and p-Au, which achieve efficient hydrogen peroxide (HO) photoproduction through two-step one-electron oxygen reduction reaction (ORR).
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January 2025
Ningbo Institute of Materials Technology and Engineering CAS: Chinese Academy of Sciences Ningbo Institute of Materials Technology and Engineering, Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, CHINA.
High-temperature phosphorescence (HTP) materials have attracted considerable attention owing to their expanded application prospects, whereas they still suffer from severe deactivation in polar media, limiting their reliability and utility. Here, we present an efficient multivalent assembly strategy to achieve high-temperature liquid-phase phosphorescence (HTLP). The supramolecular assembly of multivalent modules leads to extremely robust hydrogen-bonding networks, which firmly immobilize the organic phosphors and protect triplet excitons from annihilation in high-temperature polar media, resulting in excellent HTLP emission.
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January 2025
Department of Chemistry, Cape Breton University, Sydney, Nova Scotia B1P 6L2, Canada.
Reactive oxygen species (ROS) play fundamental roles in various biological and chemical processes in nature and industries, including cell signaling, disease development and aging, immune defenses, environmental remediation, pharmaceutical syntheses, metal corrosion, energy production, etc. As such, their detection is of paramount importance, but their accurate identification and quantification are technically challenging due to their transient nature with short lifetimes and low steady-state concentrations. As a highly sensitive and selective analytical technique, surface-enhanced Raman spectroscopy (SERS) is promising for detecting ROS in real-time, enabling in situ monitoring of ROS-involved electrochemical and biochemical events with exceptional resolution.
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January 2025
State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510641, People's Republic of China.
The advancement of underwater monitoring technologies has been significantly hampered by the limitations of traditional electrical sensors, particularly in the presence of electromagnetic interference and safety concerns in aquatic environments. Fiber optic sensors are therefore nowadays widely applied to underwater monitoring devices. However, silicon- and polymer-based optical fibers often face challenges, such as rigidity, susceptibility to environmental stress, and limited operational flexibility.
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December 2024
School of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Reaction Engineering, Laboratory of New Energy & New Function Materials, Yanan University, Yan'an 716000, China.
Elemental analysis, infrared spectroscopy, and X-ray single crystal diffraction indicated that a novel metal-organic framework (Tb-MOF) designated as 0.5n[Hbpy]·[Tb(dpa)(HO)]·4nHO was synthesized successfully, (where Hdpa = 5-(3, 4-dicarboxy- phenoxy) isophenic acid, bpy = protonated 4,4'-bipyridine). Tb-MOF adopts a 3D network structure based on Tb ions and the (dpa) ligand through µ: η, η, η, η binding modes.
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