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Religious transformations in the Middle Ages: towards a new archaeological agenda
The study of religious change in Europe between the collapse of the Roman Empire and the Reformation forms one of the cornerstones of medieval archaeology but has been riven by period, denominational and geographical divisions. This paper lays the groundwork for a fundamental rethink of archaeological approaches to medieval religions, by adopting a holistic framework that places Christian, pagan, Islamic and Jewish case studies of religious transformation in a long-term, comparative perspective. Focused around the analytical themes of ‘hybridity and resilience’ and ‘tempo and trajectories’, our approach shifts attention away from the singularities of national narratives of religious conversion towards a deeper understanding of how religious beliefs, practices and identity were renegotiated by medieval people in their daily lives
Chain Length Dependent Branching of Irradiation Induced Processes in Alkanethiolate Self Assembled Monolayers
Development of Thermally Activated Delayed Fluorescence Materials with Shortened Emissive Lifetimes
We
have prepared a thermally activated delayed fluorescence (TADF)
capable molecular system carrying halogen substituents at the carbazole
units. The attachment of the halogen atoms considerably decreases
the half-life of the delayed fluorescence. The effect is significant.
The heavier the halogen, the greater the effect. Our materials have
the shortest reported emissive lifetimes for TADF achieved to date.
Intersystem crossing (ISC) is improved through the heavy atom effect,
yet high quantum yields are achieved both in solution as well as in
thin doped films. The simple and efficient synthesis of our targets
uses inexpensive and easily obtained starting materials
Amine Sensing with Distyrylbenzenes and Their Hexamethylene-Linked Polymers: Spraying Them On
Imine Formation as a Simple Reaction to Construct Copper-Reactive Cruciform Fluorophores
New Enhanced Method for Determination of Trace Sulfamethodxazole Based on the Fluorescence Behaviors of Cyclodextrins in Water Solutions
Combined host-guest complex with coffee-ring effect for constructing ultrasensitive SERS substrate for phenformin hydrochloride detection in healthcare products
An integrated approach for trace detection of pollutants in water using polyelectrolyte functionalized magneto-plasmonic nanosorbents
Resistance of pathogenic micro-organisms to conventional antibiotics is an essential issue for public health. The presence of such pharmaceuticals in aquatic ecosystems has been of major concern for which remediation and ultra-sensitive monitoring methods have been proposed. A less explored strategy involves the application of multifunctional nanosorbents for the uptake and subsequent detection of vestigial contaminants. In this study, colloidal nanoparticles (NPs) of iron oxide and gold were encapsulated in multi-layers of a charged polyelectrolyte (PEI: polyethyleneimine), envisaging the effective capture of tetracycline (TC) and its subsequent detection by Surface Enhanced Raman Scattering (SERS). Adsorption studies were performed by varying operational parameters, such as the solution pH and contact time, in order to evaluate the performance of the nanosorbents for the uptake of TC from water. While the magnetic nanosorbents with an external PEI layer (Fe3O4@PEI and Fe3O4@PEI-Au@PEI particles) have shown better uptake efficiency for TC, these materials showed less SERS sensitivity than the Fe3O4@PEI- Au nanosorbents, whose SERS sensitivity for TC in water has reached the limit of detection of 10 nM. Thus, this study highlights the potential of such magneto-plasmonic nanosorbents as multi-functional platforms for targeting specific contaminants in water, by taking into consideration both functionalities investigated: the removal by adsorption and the SERS detection across the nanosorbents' surfaces.publishe