Sorption behavior of oxytetracycline on microplastics and the influence of environmental factors in groundwater: Experimental investigation and molecular dynamics simulation.

Microplastics (MPs) and antibiotics can enter groundwater through the interaction of soil and surface water, and MPs as carriers of antibiotics can promote the migration of antibiotics and thus generate more serious ecological risks. Therefore, this paper used experimental and molecular dynamics (MD) simulation methods to investigate the sorption between four common types of MPs in groundwater, namely polyamide (PA), polystyrene (PS), polyvinyl chloride (PVC), and polyethylene (PE), and oxytetracycline (OTC) with high detection rate in groundwater. Additionally, the impact of environmental factors on sorption was examined.

Micro-nano bubbles enhanced immobilized Chlorella vulgaris to remove ofloxacin from groundwater.

The phenomenon of antibiotic pollution has emerged as a significant global environmental concern. However, there is a lack of technical research on the effective removal of antibiotics based on the characteristics of the groundwater environment. This paper used micro-nano bubbles (MNBs) enhanced immobilized Chlorella technology to remove ofloxacin (OFLX) from groundwater.

Oriented BiTe-based films enabled high performance planar thermoelectric cooling device for hot spot elimination.

Film-thermoelectric cooling devices are expected to provide a promising active thermal management solution with the continues increase of the power density of integrated circuit chips and other electronic devices. However, because the microstructure-related performance of thermoelectric films has not been perfectly matched with the device configuration, the potential of planar devices on chip heat dissipation has still not been fully exploited. Here, by liquid Te assistant growth method, highly (00 l) orientated BiTe-based films which is comparable to single crystals are obtained in polycrystal films in this work.

Impact of catheter-tissue contact force on lesion size during right ventricular outflow tract ablation in a swine model.

Background: The catheter-tissue contact force (CF) is one of the significant determinants of lesion size and thus has a considerable impact on the effectiveness of ablation procedures. This study aimed to evaluate the impact of CF on the lesion size during right ventricular outflow tract (RVOT) ablation in a swine model.

Methods: Twelve Guangxi Bama miniature male pigs weighing 40 to 50 kg were studied.

Compressive sensing method to leverage prior information for submerged target echoes.

Reducing data volume and improving signal-to-noise ratio (SNR) is of great importance for echoes from submerged targets, affected by serious marine environment noise. The echo from a target is made of its response to the incident wave with the superposition of highlights (sub-echoes from main constituents of the target). Each of these highlights can be seen as a block, and the echo therefore has a block-sparse feature.

Insertion approach: bolstering the reproducibility of electrochemical signal amplification via DNA superstructures.

For more than a decade, the backfilling approach for the immobilization of DNA probes has been routinely adopted for the construction of functional interfaces; however, reliably reproducing electrochemical signal amplification by this method is a challenge. In this research, we demonstrate that the insertion approach significantly bolsters the reproducibility of electrochemical signal amplification via DNA superstructures. The combination of the backfilling approach and the DNA superstructure formation poses a big challenge to reliably reproducing electrochemical signal amplification.

A light transmission technique for pore size measurement in track-etched membranes.

A new approach is proposed for accurate measurement of the pore sizes in a track-etched PET membrane (polyethylene terephthalate) from a nanometer scale to a submicrometer scale, which only entailed UV-Vis spectrometry.

Stimulation of bioluminescence in Noctiluca sp. using controlled temperature changes.

Bioluminescence induced by multifarious stimuli has long been observed and is remains under investigation because of its great complexity. In particular, the exact mechanism underlying bioluminescence is not yet fully understood. This work presents a new experimental method for studying Noctiluca sp.

3-[(2-Formyl-thio-phen-3-yl)(hy-droxy)meth-yl]thio-phene-2-carbaldehyde.

In the title compound, C(11)H(8)O(3)S(2), the dihedral angle between the mean planes of the two thio-phene rings is 65.10 (10)°. Intra-molecular C-H⋯O inter-actions form S(6) and S(7) ring motifs.