Manipulating π-π Interactions between Single Molecules by Using Antenna Electrodes as Optical Tweezers.

Via conductance measurements of thousands of single-molecule junctions, we report that the π-π coupling between neighboring aromatic molecules can be manipulated by laser illumination. We reveal that this optical manipulation originates from the optical plasmonic gradient force generated inside the nanogaps, in which the gapped antenna electrodes act as optical tweezers pushing the neighboring molecules closer together. These findings offer a nondestructive approach to regulate the interaction of the molecules, deepening the understanding of the mechanism of π-π interaction, and open an avenue to manipulate the relative position of extremely small objects down to the scale of single molecules.

Time-calibrated phylogeny of neotropical freshwater fishes.

Neotropical Freshwater Fish (NFF) fauna exhibits the greatest phenotypic disparity and species richness among all continental aquatic vertebrate faunas, with more than 6,345 species distributed across the mostly tropical regions of Central and South America. The last two decades have seen a proliferation of molecular phylogenies, often at the species level, covering almost all 875 valid NFF genera. This study presents the most comprehensive genome-wide, time-calibrated phylogenetic hypothesis of NFF species to date, based on DNA sequences generated over decades through the collaborative efforts of the multinational ichthyological research community.

Dual-Substitution Strategy Utilizing Cation Chelation and Assembly Process to Realize Solid Solution Reaction in Layered Oxide Cathode for Na-Ion Batteries.

NaNiMnO (NNM) is regarded as a promising cathode material for Na-ion batteries (NIBs), but suffers from irreversible phase transformations characterized by multiple voltage plateaus, resulting in poor cycle stability and inferior rate capability. To address these issues, the NaNiCuZnMnO (NNCZM) cathode material is synthesized by a cation chelation and reassembly process, which can promote a more uniform element distribution than that prepared by the solid-state method (S-NNCZM), resulting in better Na diffusion kinetics and rate capability. Replacing Ni with a small amount of Zn prevents the P2-O2 phase transformation, while replacing Ni with an appropriate amount of electrochemically active Cu eliminates Na-vacancy ordering and additionally contributes to capacity.

[Analysis of the distribution characteristics of allergen sIgE detection in patients with respiratory and skin mucosal diseases in a hospital in Shanghai City from 2022 to 2023].

Analyzing the distribution characteristics of allergen sIgE in the serum of patients with respiratory and skin mucosal diseases in Shanghai City, and to provide epidemiological characteristics and diagnostic basis for the prevention and treatment of allergic respiratory and dermo-mucous diseases in Shanghai City. Adopting cross-sectional research, a total of 3 822 patients who received treatment in Tongren Hospital, Shanghai Jiao Tong University School of Medicine from July 2022 to July 2023 due to respiratory diseases or skin and dermo-mucous symptoms were included. Among them, there were 1 456 males and 2 366 females, with an age range of 1-97 years old.

The relationship between intrinsic spirituality, resilience and hopelessness in patients with epilepsy: A PATH analysis.

Background: This study was conducted to examine the relationship between intrinsic spirituality, resilience and hopelessness in patients with epilepsy and to investigate the mediating role of resilience in the relationship between intrinsic spirituality and hopelessness.

Methods: This study is a descriptive correlational research. The study was conducted with 120 patients who met the inclusion criteria between January 2023 and July 2023.