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Enhancing Carbon Monoxide Tolerance in Low-Temperature PEM Fuel Cells through Carbon Nitride Surface Modification.
ACS Appl Mater Interfaces
January 2025
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
Low-temperature proton exchange membrane fuel cells (PEMFCs) reuqire highly pure hydrogen gas due to their extreme sensitivity to carbon monoxide (CO) contamination, which poses a challenge for using cost-effective reformed hydrogen sources. To address this issue, we have developed a surface modification strategy by applying a 0.5-0.
View Article and Find Full Text PDFSmoking-related complications in foot and ankle surgery: a systematic review.
Eur Rev Med Pharmacol Sci
December 2024
Department of Orthopedic Surgery and Traumatology, Cantonal Hospital Fribourg, University of Fribourg, Fribourg, Switzerland.
Objective: The detrimental effects of cigarette smoking on overall health are well-documented, with nicotine and carbon monoxide contributing to peripheral vasoconstriction and impaired oxygen delivery to tissues. This study reviews the impact of smoking on wound and bone healing, specifically in foot and ankle surgery, given its significant role as a modifiable risk factor for complications in orthopedic procedures.
Materials And Methods: A systematic literature review was conducted in May 2024 following PRISMA guidelines.
General synthesis of neighboring dual-atomic sites with a specific pre-designed distance via an interfacial-fixing strategy.
Nat Commun
January 2025
Anhui University of Technology, Ma'anshan, Anhui, 243002, P. R. China.
A potential non-precious metal catalyst for oxygen reduction reaction should contain metal-N moieties. However, most of the current strategies to regulate the distances between neighboring metal sites are not pre-designed but depend on the probability by tuning the metal loading or the support. Herein, we report a general method for the synthesis of neighboring metal-N moieties (metal = Fe, Cu, Co, Ni, Zn, and Mn) via an interfacial-fixing strategy.
View Article and Find Full Text PDFComposite Hyaluronic Acid Gas-Entrapping Materials to Promote Wound Healing.
Biomacromolecules
January 2025
Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa 52242, United States.
Tissue repair is often impaired in pathological states, highlighting the need for innovative wound-healing technologies. This study introduces composite hyaluronic acid gas-entrapping materials (GEMs) delivering carbon monoxide (CO) to promote wound healing in pigs. These composite materials facilitate burst release followed by sustained release of CO over 48 h.
View Article and Find Full Text PDFHazardous exposures and engineering controls in the landscaping services industry.
J Occup Environ Hyg
January 2025
Indian Health Service, Traverse City, Michigan.
Landscapers are exposed to noise, carbon monoxide (CO), respirable dust, and respirable crystalline silica (RCS) generated from the tools they use. Although engineering controls are available to reduce these exposures, no previous study has evaluated chronic exposures to landscapers in different work settings and compared exposures from landscaping tools with and without engineering controls. This field study of workers in the landscaping services industry documented the occupational exposures of 80 participants at 11 varied worksites to noise, CO, respirable dust, and RCS using personal breathing zone sampling.
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