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Porous Nanoframe Based Plasmonic Structure With High-Density Hotspots for the Quantitative Detection of Gaseous Benzaldehyde.
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January 2025
Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian, 116600, China.
Owing to its high sensitivity, surface-enhanced Raman scattering (SERS) has immense potential for the identification of lung cancer from the variation in volatile biomarkers in the exhaled gas. However, two prevailing factors limit the application of SERS: 1) the adsorption of target molecules into SERS hotspots and 2) the detection specificity in multiple interference environments. To improve the density of the SERS hotspots, 3D Au@Ag-Au particles are prepared in a porous nanoframes (PPFs) based plasmonic structure, which facilitated a richer local electromagnetic field distribution among the Au nanocubic (NC) cores, Au-Ag porous nanoframes, and Au nanoparticles, thereby promoting the adsorption probability of gaseous aldehydes into the hotspots.
View Article and Find Full Text PDFExamination of the requirements for powered air-purifying respirator (PAPR) utilization as an alternative to lockdown.
Sci Rep
January 2025
Gunma University, 1-5-1 Tenjin-Cho, Kiryu, 376-8515, Japan.
With the emergence of COVID-19 variants and new viruses, it remains uncertain when the next pandemic will occur. A lockdown is considered the last resort to halt the spread of infection; however, it causes significant economic and social damage. Therefore, exploring less harmful alternatives during such scenarios is crucial.
View Article and Find Full Text PDFGrenfell Tower Fire: Toxic Effluents and Assessment of Firefighters' Health Impacts.
J Occup Environ Med
January 2025
From the Centre for Fire and Hazards Sciences, University of Central Lancashire, Preston, Lancashire, United Kingdom.
Objective: This study assesses the health symptoms and longer-term health outcomes of firefighters who attended the Grenfell Tower fire.
Methods: All available data sources were analyzed, including databases published by the Public Inquiry, the Firefighter Cancer and Disease Registry, incident logs, and sickness reports up to 3 years postfire.
Results: More than three times as many firefighters who reported exposure to smoke during the fire also reported digestive and respiratory diseases following the fire, compared with those not reporting exposure to smoke.
Grenfell Tower Fire: Firefighters' Activities and Their Exposure to Fire Smoke and Heat.
J Occup Environ Med
January 2025
From the Centre for Fire and Hazards Sciences, University of Central Lancashire, Preston, Lancashire, United Kingdom.
Objective: This study aimed to characterize the smoke exposure of firefighters who attended the Grenfell Tower fire during the initial 20 hours.
Methods: As no compilation of exposure data exists, data were compiled from nine unconnected sources, including the Grenfell Tower Inquiry, firefighters' statements, incident logs, and the UK Firefighter Cancer and Disease Registry.
Results: Of the 628 firefighters who attended, information was available from 524.
Feasibility and safety of ultra-low volume ventilation (≤ 3 ml/kg) combined with extra corporeal carbon dioxide removal (ECCOR) in acute respiratory failure patients.
Crit Care
December 2024
Department of Anesthesia and Intensive Care Unit, Regional University Hospital of Montpellier, St-Eloi Hospital, PhyMedExp, INSERM U1046, CNRS UMR, University of Montpellier, 9214, Montpellier Cedex 5, France.
Background: Ultra-protective ventilation is the combination of low airway pressures and tidal volume (Vt) combined with extra corporeal carbon dioxide removal (ECCOR). A recent large study showed no benefit of ultra-protective ventilation compared to standard ventilation in ARDS (Acute Respiratory Distress Syndrome) patients. However, the reduction in Vt failed to achieve the objective of less than or equal to 3 ml/kg predicted body weight (PBW).
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