Shanghai University

Pd(II)-Templated End-to-End Cyclization of Doubly N-Confused Bilatrienes: A Stable Singlet Diradicaloid Dye with Efficient Absorption across the Solar Spectrum

Abstract We report a highly stable singlet diradicaloid (Pd1-dimer), formed through a Pd(II)-templated end-to-end cyclization of a linear N-confused bilatriene (1). This unique Pd-bridged double-loop complex exhibits an open-shell singlet diradicaloid ground state with an extreme...

Achieving High Spatial Resolution Transmission Electron Microscopy Studies in Closed Liquid Cells

Liquid cell transmission electron microscopy (LCTEM) is a rising technique for probing dynamic processes and structural transformations in liquid environments at the nanoscale. However, its broader application is largely constrained by limited spatial resolution, which arises fro...

Phase-change-coupled thermochromic radiative cooling smart windows

Smart windows capable of adaptive solar regulation, thermal energy storage, and radiative heat management are promising for improving building thermal regulation efficiency under variable climatic conditions. Herein, a phase-change-coupled thermochromic radiative cooling (PTRC) s...

Six‐DoF Strawberry Harvesting Pose Selection and Adaptive Obstacle Clearing in Occluded Environments

In complex, unstructured orchard environments, accurate end‐effector pose selection is essential for low‐damage strawberry harvesting. This study proposes an occlusion‐aware 6‐DoF harvesting pose‐selection strategy with adaptive obstacle clearing for a fixed‐stroke two‐finger end...

Unraveling the Origins of C‐Rate Dependent Capacity Decay in Fe‐Mn‐Based Prussian Blue Cathodes for Sodium Ion Batteries

ABSTRACT Prussian blue analogues (PBAs), especially low‐cost Mn‐doped Fe‐based PBAs, demonstrate significant potential for power‐type sodium‐ion batteries (SIBs), owing to their open framework and high theoretical capacity (∼170 mAh g −1 ). However, their capacity decay mechanism...

A Low-Disturbance Workflow for Determining NMR T2 Cutoffs in Mechanically Sensitive Core Samples

Centrifugation is widely used to determine the NMR T2 cutoff of core samples, but it may alter pore structures and is particularly unsuitable for mechanically sensitive cores. This study proposes a low-disturbance workflow combining staged gas displacement with deuterium oxide (D...

Imaging of Electrochemically Programmed Single-Molecule Reactions

Abstract Single-molecule reactions reveal intrinsic heterogeneity that is obscured in ensemble measurements. However, most existing approaches rely on extreme dilution, ultrasmall solution volumes, or physical confinement to keep individual events sufficiently sparse. Here, we in...

Development and Application of a High-Resolution Cryogenic STXM System at the Shanghai Synchrotron Radiation Facility

Abstract Scanning transmission X-ray microscopy (STXM) is an advanced technique for label-free chemical imaging with nanometer-scale spatial resolution which is well suited to studies of complex and heterogeneous materials. For biological and other radiation-sensitive specimens,...

Nanoconfinement-cooperated catalysis enables rapid tandem redox kinetics for wide-temperature lithium-sulfur batteries

The slow kinetics of sulfur cathodes caused by the high energy barriers of Li + desolvation stem primarily from the structure of the inner Helmholtz plane (IHP). Herein, a synergistic strategy combining electrochemical tandem catalysis with spatial nanoconfinement is proposed to...

Cellulose Acetate-Based Janus Membrane with Dual-Mode Switching for On-Demand Radiative Cooling and Solar Heating

Abstract Conventional static thermal management materials incur overcooling penalties in cold seasons. In this study, we develop a cellulose acetate-based Janus bilayer membrane that enables on-demand switching between radiative cooling and solar heating via mechanical flipping....

CD147+ Cancer‐Associated Fibroblasts Promote PD‐L1 Expression in Hepatocellular Carcinoma via TIMP2/MMP2/IL‐6 Signaling

BACKGROUND: Targeting CD147 on hepatocellular carcinoma (HCC) cells has demonstrated therapeutic efficacy. Cancer-associated fibroblasts (CAFs) have been identified as critical components of the tumor microenvironment. The role of CD147 in CAFs is still unclear, and this study ai...

Lattice matching governs interfacial kinetics and conversion reversibility in FeF3 cathodes

Iron trifluoride (FeF3) conversion-type cathodes generally suffer from bottlenecks including poor interfacial stability and sluggish Li+ transport. Most existing studies have overlooked the critical regulatory effect of the lattice matching relationship between the surface layer...

Optimization Method for Measuring and Evaluating Hole-Group Position Under the Combined Effects of Datum Shift and Maximum Material Condition

This paper investigates the combined effects of the Maximum Material Condition (MMC) modifier and datum feature shift on hole-group positional tolerance evaluation. The formulation follows ASME Y14.5-2018 as the primary normative framework, with ISO GPS terminology as a supplemen...

Programming Hydrophobic Nanocavity of DNA Frameworks for Ultrastable Fluorescent Imaging

ABSTRACT Fluorescent proteins (FPs) are widely used in biological imaging, yet their limited programmability restricts adaptability for advanced nanoscale applications. Synthetic molecular containers offer designable cavities but struggle to simultaneously achieve large dimension...

Multi-Objective Distributed Operating Room Scheduling in Collaborative Hospital Networks: Balancing Operating Costs, Patient Deterioration, and Patient Utility

Collaborative hospital networks are hospital groups that collaborate to provide healthcare services and share medical resources. They are an important part of the accessibility and efficiency of healthcare delivery. Nevertheless, existing research pays limited attention to multi-...

Circulating and tumor microenvironment immunomarkers associate with immunotherapy efficacy in advanced bladder urothelial carcinoma: an exploratory multicenter study integrating genomic and immunophenotypic profiling

Aims To elucidate the efficacy-predictive values of immunomarkers in both peripheral blood and tumor tissue in patients with advanced bladder-urothelial-carcinoma (aBUC) undergoing first-line immunotherapy.Patients and methods In previously untreated aBUC, T-cell subclusters and...

Ultrahigh strength enabled by dual-scale L12 precipitation and back-stress strengthening in an LPBF-fabricated (CoCrNi)94Al3Ti3 medium-entropy alloy

Simultaneously achieving ultrahigh strength and useful tensile ductility in precipitation-strengthened medium-entropy alloys requires control over not only precipitate characteristics but also the recovery and recrystallization of metastable additively manufactured microstructure...

Touching Civilization: Enhancing Museum Experience for Visually Impaired Individuals through Spatiotemporal Guidance

Museum experiences remain largely inaccessible for blind and low-vision (BLV) individuals due to the visual-centric nature of traditional exhibitions. To address this gap, we present a VR-haptic museum system that combines digital 3D printing and virtual reality (VR) to deliver p...

Analyzing the Key Influencing Factors of Contractors’ Environmentally Responsible Behavior in Megaprojects: A Social Network Analysis

Abstract In the context of environmental governance in megaprojects, contractors’ environmentally responsible behavior (ERB) plays an increasingly critical role. Previous studies have focused primarily on identifying individual factors influencing such behavior, but they have lar...

Holistic foreground–background guided feature learning for few-shot strip steel defect segmentation

Strip steel surface defect (S 3 D) segmentation has become an indispensable technique for surface inspection in strip steel production lines. However, the imbalance between the foreground and background, as well as the complex defect appearances, have become the main challenges i...