Results 11 to 20 of about 72,336 (315)

General molten-salt route to three-dimensional porous transition metal nitrides as sensitive and stable Raman substrates

open access: yesNature Communications, 2021
Fabrication of transition metal nitrides generally requires harsh conditions due to the high activation energy barrier for nucleation. Here, the authors report a mild molten-salt route for the synthesis of three-dimensional porous metal nitrides, VN, MoN,
Haomin Guan   +6 more
doaj   +1 more source

Low temperature synthesis of plasmonic molybdenum nitride nanosheets for surface enhanced Raman scattering

open access: yesNature Communications, 2020
Molybdenum nitride is promising for catalysis, energy storage and Raman scattering, but it is synthesized under harsh conditions. Here the authors synthesize highly crystalline molybdenum nitride nanosheets using a relatively mild, non-aqueous ...
Haomin Guan   +6 more
doaj   +1 more source

The first detected airline introductions of yellow fever mosquitoes (Aedes aegypti) to Europe, at Schiphol International airport, the Netherlands

open access: yesParasites & Vectors, 2017
Background Air-borne introduction of exotic mosquitoes to Schiphol airport in the Netherlands has been considered plausible based upon findings of mosquitoes in aircraft cabins during 2008, 2010 and 2011.
A. Ibañez-Justicia   +5 more
doaj   +1 more source

Imported Hyalomma ticks in the Netherlands 2018–2020

open access: yesParasites & Vectors, 2021
Background Ticks of the genus Hyalomma, which are vectors for several tick-borne diseases, are occasionally found in areas outside their endemic range including northern parts of Europe.
Mathilde Uiterwijk   +8 more
doaj   +1 more source

Quasi-metallic Tungsten Oxide Nanodendrites with High Stability for Surface-Enhanced Raman Scattering

open access: yesCell Reports Physical Science, 2020
Summary: As a non-destructive and label-free detection technology, surface-enhanced Raman scattering (SERS) has been widely used in environmental-pollutant detection, biological-tissue sensing, molecular fingerprint analysis, and so on. Herein, we report
Yuting Ye   +7 more
doaj   +1 more source

Gas‐Sensing Activity of Amorphous Copper Oxide Porous Nanosheets

open access: yesChemistryOpen, 2020
In this paper, the gas‐sensing properties of copper oxide porous nanosheets in amorphous and highly crystalline states were comparatively investigated on the premise of almost the same specific surface area, morphology and size. Unexpectedly, the results
Zheng Tian   +6 more
doaj   +1 more source

Surfactant-free interfacial growth of graphdiyne hollow microspheres and the mechanistic origin of their SERS activity

open access: yesNature Communications, 2023
As a two-dimensional carbon allotrope, graphdiyne possesses a direct band gap, excellent charge carrier mobility, and uniformly distributed pores. Here, a surfactant-free growth method is developed to efficiently synthesize graphdiyne hollow microspheres
Lu Zhang   +5 more
doaj   +1 more source

Two decades of nonfatal injury data: a scoping review of the National Electronic Injury Surveillance System-All Injury Program, 2001–2021

open access: yesInjury Epidemiology, 2023
Background Injury is a leading cause of preventable morbidity and mortality in the USA. Ongoing surveillance is needed to understand changing injury patterns to effectively target prevention efforts.
Livia Navon   +3 more
doaj   +1 more source

A metallic molybdenum dioxide with high stability for surface enhanced Raman spectroscopy

open access: yesNature Communications, 2017
Semiconducting materials are potential SERS substrates as alternatives to noble metals, but often suffer from poor stabilities and sensitivities. Here, the authors use molybdenum dioxide as a SERS material, showing high enhancement factors and stability ...
Qiqi Zhang   +8 more
doaj   +1 more source

Consumer Behavior and the Safety Effects of Product Safety Regulation [PDF]

open access: yesThe Journal of Law and Economics, 1985
A recurring issue in the economic analysis of risk regulation agencies is whether these efforts have had any significant favorable effect on safety. Although the existence of such an effect would not necessarily imply that these efforts were worthwhile, without an enhancement in safety there is no potential rationale for these regulations.
openaire   +1 more source

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