pH-responsive hydrogels embedded in hollow-core optical resonators.

Whispering-gallery-mode (WGM) microresonators are typically studied for surface (bio)chemical sensing, mainly relying on small refractive index changes occurring within a nanometer range from their walls surface. This high sensitivity, reaching up to 10 refractive index unit (RIU, ∼2.5 nm/RIU and measured at a femtometer resolution) leads to broad ranges of applications, especially for biosensing purposes through the monitoring of molecular binding events.

Risk factors for fluoroquinolone- and macrolide-resistance among swine using multi-layered chain graphs.

Unlabelled: . resistant to fluoroquinolones and macrolides are serious public health threats. Studies aiming to identify risk factors for drug-resistant have narrowly focused on antimicrobial use at the farm level.

Low-cost microvascular phantom for photoacoustic imaging using loofah.

Significance: Existing photoacoustic phantoms are unable to mimic complex microvascular structures with varying sizes and distributions. A suitable material with structures that mimic intricate microvascular networks is needed.

Aim: Our aim is to introduce loofah as a natural phantom material with complex fiber networks ranging from 50 to , enabling the fabrication of phantoms with controlled optical properties comparable to those of human microvasculature.

Green hydrothermal approach for the synthesis of carbon quantum dots from waste tea bags for acrylamide detection in drinking water: A fluorescence assay validated by HPLC-PDA analysis.

The study focused on converting tea bag waste into strong fluorescence carbon quantum dots (TBW-CQDs) for the detection of acrylamide in drinking water, antimicrobial activity, and photocatalytic degradation. The TBW-CQDs exhibited blue luminescence and maximum absorbance at 287 nm under UV light and distinctive fluorescence emission and excitation wavelengths at 425 nm and 287 nm, respectively. TBW-CQDs revealed a particle size of 8.

Pd@BTL-Cd core-shell nanoparticles as plasmonic photocatalysts for the reductive amination of furfural in water.

This work reports the step-wise fabrication of a core-shell plasmonic nanocomposite Pd@BTL-Cd consisting of a BTL-Cd shell and a palladium nanoparticle core. BTL-Cd is the [Cd(BTL)·CdCl] complex where the heptadentate framework of the bis-compartmental ligand encapsulated two Cd(II) centres in separate pockets. Pd@BTL-Cd has been found to be highly efficient for the photocatalytic conversion of furfural (a biomass-derived aldehyde) to furfuryl amine reductive amination in aqueous ammonia at room temperature.