Advanced Optical Materials
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2025
·
IF 7.2
Chang Gu,Tao Wang,Xian Qin,Xiaogang Liu
Scintillators are essential in applications, such as homeland security, nuclear physics, and geological exploration. However, conventional scintillators often suffer from degradation under polar chemical conditions, resulting in scintillation quenching and structural decomposition. Here, a molecular engineering strategy is demonstrated to enhance scintillator stability and performance through halogen-bonded lattice reconstruction. The synthesis of a copper cluster scintillator, (X-MBA) 4 Cu 4 I 4 (X: Br or Cl, MBA: S -methylbenzylamine) is reported, where halogen bonding improves lattice symmetry and rigidity, effectively suppressing electron-phonon coupling and defect trapping. The halogenated copper clusters exhibit a photoluminescence quantum yield of ≈90%, a 13-fold increase in light yield, and an X-ray detection limit of 28.8 nGy air s −1 , outperforming halogen-free counterparts. These scintillators maintain their structural integrity and performance even after prolonged exposure to polar chemical solvents. The combination of molecular design and structural robustness enables high-resolution X-ray imaging (22 lp mm −1 ) across various chemical environments, paving the way for high-performance scintillators with exceptional durability and efficiency.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2021
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IF 7.312
Yichen Ding,Dongya Li,Shiyu Zuo,Zeyu Guan,Su Ding
The synergistic effect of radicals and non-radical pathways has attracted much attention for pollutant removal in complex water environments. A novel B-doped CuO/Cu 2 O composite material (B-Cu x O) was synthesized to activate PMS for the degradation of bisphenol A (BPA). XPS and FT-IR proved that B was doped into the Cu x O, which changed the proportion of Cu(Ⅱ) and Cu(Ⅰ). As a result, the cycle of Cu(Ⅱ)/Cu(Ⅰ) was promoted and the kinetic degradation rate of BPA increased by 12 times. The radicals quenching experiments and EPR verified the effects of radicals (·OH and SO 4 ·- ) and non-radical ( 1 O 2 ) pathways in the pollution degradation processes. The results show that B doping accelerated the Cu(Ⅱ)/Cu(Ⅰ) cycle, and at the same time realized the synergistic effect of radicals and non-radical. The PMS/B-Cu x O system exhibited consistent performance in a wide pH range of 5–11. The toxicity evaluation of the transformation products among BPA solutions was studied. This study provided a novel method for accelerating the catalysis of radicals and non-radical synergy.
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PHYSICAL CHEMISTRY CHEMICAL PHYSICS
·
2016
·Vol. 18
·期 20
·14046-14054
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IF 4.449
Qingxin Zeng,Tingting Yan,Kai Wang,Yinyan Gong,Yong Zhou,Yongli Huang,Chang Q. Sun,Bo Zou
In situ Raman spectroscopy revealed that transiting H2O/NaX (∼64) solutions into an ice VI phase and then into an ice VII phase at a temperature of 298 K requires excessive pressures with respect to pure water. The increase of the critical pressures varies with the solute type in the Hofmeister series order: X = I > Br > Cl > F ∼ 0. The results suggest that the solute hydration creates electric fields that lengthen and soften the O:H nonbond and meanwhile shorten and stiffen the H–O bond through O–O Coulomb repulsion. Compression, however, does the opposite to solute electrification upon the O:H–O bond relaxation. Therefore, compression of the aqueous solutions recovers the electrification-deformed O:H–O bond first and then proceeds to the phase transitions, which requires excessive energy for the same sequence of phase transitions. Ice exclusion of solute disperses the frequencies of characteristic phonons and the critical pressures with unlikely new bond formation.
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JOURNAL OF SOLID STATE CHEMISTRY
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2021
·
IF 3.498
Mei Yan,Wen-Dong Yao,Wenfeng Zhou,Wenlong Liu,Ru-Ling Tang
Inorganic gallates are attractive owing to their abundant structures and wide applications for nonlinear optics, magnetism , molecular sieve and catalysis. Herein, a new cesium cadmium gallate, CsCdGa 3 O 6 , has been synthesized by a solid-state reaction, which is the first I-II-III-O (I = alkali metals, II = divalent metals, III = Al, Ga, In) type oxide. It crystallizes in the centrosymmetric space group P 2 1 / c , and the three-dimensional Ga–O polyanionic framework is constructed by [Ga 4 O 14 ] 16− helical belts linked [Ga 6 O 6 ] 6+ and [Ga 8 O 8 ] 8+ cages. Thermal analysis indicates that it possesses high thermal stability. Various characterizations and results analysis including XRD , TG-DSC, IR, Raman spectrum , as well as electronic structure calculations were performed.
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Science Advances
·
2026
·Vol. 12
·期 29
·
IF 13.9
Qixing Zhang,Jing Gao,Muchen Li,Ying Yang,Guanlan Chen,Han He,Xingfei Chen,Xiaobing Gu,Yajun Gao,Yongcai He,Bo He,Xixiang Xu,Zhenguo Li,Ying Zhao,Lijun Zhang,Michael Grätzel,Xiaodan Zhang
Solar-driven electrochemical CO 2 reduction to multicarbon (C 2+ ) products presents a promising avenue for artificial photosynthesis, yet remains constrained by high overpotentials and limited conversion efficiency. Here, we developed an alkaline environment-modulated prereduction strategy that capitalizes on the divergent thermodynamic stabilities of precursors, enabling the precise synthesis of iodine-doped copper nanotopologies (Cu-I NTs). Featuring tunable under-coordination defects and stabilized high-energy adsorption sites, the Cu-I NTs achieve an onset potential of only −0.37 V versus the reversible hydrogen electrode for C 2+ formation. Operando Raman measurement and density functional theory calculation reveal that the tailored surface topologies favor Cu-CO rotation adsorption, enabling dynamic reorientation from bridge- to atop-binding configurations, which collectively lowers the barrier for CO-CO coupling. Impressively, powering the electrolyzer by a perovskite/silicon tandem together with a single-junction silicon photovoltaic device, the system delivers a photocurrent of 12.34 mA cm −2 at 2.17 V under standard AM 1.5 illumination, achieving a solar-to-C 2+ conversion efficiency of 8.64%.
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ACS Pharmacology & Translational Science
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2026
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IF 4
Xianlan Chen,Lu Zhang,Yan Zheng,Haiyang Chi,Rongrong Zhao,Kang Hu,Jiashan Zhu,Mi Liu
Knee osteoarthritis (KOA) has no effective nonsurgical treatment. Intra-articular therapy constitutes an effective localized intervention; however, persistent lymphatic drainage and synovial vascular exchange lead to rapid drug elimination. Encapsulating bioactive agents into microsphere delivery platforms enables localized intra-articular administration, with their scaffold-based spherical architecture serving as pharmaceutical and cellular carriers or tissue engineering scaffolds, representing a highly promising therapeutic avenue for KOA. Herein, PLGA was employed to prepare microspheres and a sustained-release microsphere formulation (MPs PLGA DSP@COLI) was prepared for KOA therapeutics, co-encapsulating type I collagen (COLI) and dexamethasone sodium phosphate (DSP). Characterization revealed uniform particle size distribution, favorable dispersibility, and extended-release kinetics. Functional assessments demonstrated robust anti-inflammatory efficacy and enhanced chondrocyte-mediated extracellular matrix deposition. Histopathological and immunohistochemical analyses demonstrated preserved cartilage matrix integrity, augmented COLII synthesis, diminished inflammatory cellular infiltration, and maintained homeostasis of cartilage matrix components, concomitant with reduced OARSI and synovitis scores. These effects collectively suppressed synovial hyperplasia and inflammation and suggested potential improvement in joint conditions. Overall, MPs PLGA DSP@COLI combines the pharmacological anti-inflammatory properties of DSP with the extracellular matrix-related biological functions of COLI, establishing an innovative "drug-device combination" therapeutic paradigm, which represents a promising therapeutic strategy for KOA.
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ACS Applied Materials & Interfaces
·
2026
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IF 7.8
Ning Liu,Yehan Zeng,Kejia You,Yilu Chen,Guotao Sun,Jiayu Chen,Shouzhao Zhan,Xuan Guo,Tailiang Guo,Yang Liu,Fushan Li
The rapid development of the Internet of Things and artificial intelligence has sharply increased the demand for secure, low-cost, and scalable anticounterfeiting technologies. Physical unclonable functions (PUFs) offer intrinsic protection by converting stochastic material variations into unique identifiers, but their practical implementation is often limited by complex fabrication, toxic luminophores, and low information complexity arising from single-channel readout. Here, we develop a copper(I) iodide cluster-poly(methyl methacrylate) fluorescent PUF through a single ambient coating step. Nonequilibrium solvent evaporation and polymer solidification generate randomly distributed yellow-emissive microdomains together with three-dimensional surface relief, while the cluster and polymer concentrations regulate domain coverage, intensity, and morphology without prescribing their microscopic arrangement. Binary fluorescence keys exhibit a mean interlabel Hamming distance of 0.49935 and an intralabel value of 0.00219. Incorporating discretized surface height further enables multivalued fluorescence-topography encoding. The solution-processable composite is compatible with spin coating, spray coating, transfer printing, and direct writing, allowing stochastic fingerprints to be integrated into planar, flexible, and curved objects for diverse anticounterfeiting scenarios. The fingerprints remain readable after storage, water exposure, thermal treatment, and ultraviolet irradiation. Deep-learning retrieval combined with local-feature matching enables hierarchical identification and physical verification. This work provides a simple, lead-free route to multimodal PUFs for scalable anticounterfeiting and authentication.
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ChemSusChem
·
2026
·Vol. 19
·期 8
·e202502358
·
IF 5.9
Soumalya Sinha,Ashwin Chaturvedi,Nabin Pandey,Julien A. Panetier,Jianbing “Jimmy” Jiang
While the defluorination of environmentally persistent poly- and perfluoroalkyl substances (PFASs) requires the development of energy-efficient methodologies for complete mineralization, electrochemical C F bond activation remains a fundamental research challenge. Although C F activation chemistry is commonly studied using fluoromethylarenes as substrates, the stronger C F bonds in short-chain perfluoroalkyl carboxylic acids (PFCAs), fluorinated aliphatic alcohols, and fluorotelomers are yet to be explored. Herein, we report a molecular copper(I) complex that activates the C F bonds in trifluoroacetic acid ( TFA ), 2,2,2-trifluoroethanol ( TFE ), 2,2-difluoroethanol ( DFE ), and 2-fluoroethanol ( MFE ) when a constant reductive current of 6 mA is applied. 99% free fluoride was recovered from MFE after 12 h of electrolysis, which is comparatively higher than that of TFE (∼15%), DFE (19.2%), or TFA (∼14%), and is attributable to the strengths of the C F bonds in these molecules. We also defluorinated four selected PFCAs bearing short-chain C F backbones and terminal trifluoromethyl groups, which are common end products formed by the degradation of toxic perfluoroalkyl substances. In addition, we investigated the defluorination and degradation of two fluorotelomers under ambient conditions. Density functional theory calculations revealed a correlation between the %fluoride recovery and the C F bond dissociation energy of each substrate. Accordingly, we report a rare example of a molecular electrocatalytic system that activates the strong C F bonds in fluoromethylalkyls, including short-chain PFASs, which are typical end products of common PFAS degradation processes. Graphical Molecular copper(I) electrocatalyst promoted ultra-short and long-chain perfluoroalkyl substance (PFAS) degradation under ambient homogeneous electrochemical conditions. Substrate scopes also include fluoroalkyl alcohols and trifluoroacetic acid. Controlled-current electrolysis studies in the presence of the copper(I) catalyst showed the defluorination of resilient C–F bonds under ambient conditions.
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Materials Today Nano
·
2026
·
IF 7.6
Shixiang Rao,Hao Jiang,Zheng Li,Guoqing Wang,Shixing Han,Chunguang Li
Marine biofouling poses serious safety risks to offshore infrastructures and leads to substantial economic losses. Although hydrogels have shown significant promise in marine antifouling applications, developing antifouling hydrogels that simultaneously possess excellent mechanical strength and strong antifouling efficiency remains a major challenge. Herein, a high-performance antifouling hydrogel was constructed by incorporating hollow glass microspheres functionalized with a Cu(I) based metal-organic framework (Cu(I)-MOFs) into a poly(vinyl alcohol)/poly(sulfobetaine methacrylate) (PVA/PSBMA) double-network matrix. The as-developed Cu(I)-MOFs/hydrogel composite integrates excellent antifouling and mechanical properties, achieving protein and algal resistance of 99.8% and 99.9%, respectively, as well as a high antibacterial rate of 99.6%. Importantly, the composite reaches a compressive strength of 5.35 MPa, outperforming many existing antifouling hydrogels, and demonstrates low swelling with reliable performance in seawater. In a 100-day field test in a real marine environment, the fouling coverage of as-prepared hydrogel was as low as 0.12%. This work offers an effective and feasible strategy for preventing marine biofouling and also pioneers a new approach for hydrogel applications. Download: Download high-res image (395KB) Download: Download full-size image
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JOURNAL OF POWER SOURCES
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2026
·
IF 8.4
Manqi Chen,Luoting Wu,Wenjun He,Guimei Li,Suyu Chen,Jiawei Luo,Chunxia Xie,Cheng-Gong Han,Kai Zhou,Li Niu
Effectively harvesting low-grade waste heat dispersed in the surrounding environment is critical for current energy recovery. Gel thermocells, which use ions as carriers to directly convert heat into electricity, have attracted increasing attention due to their high ionic thermopower and flexibility. However, the limited availability of redox couple poses a challenge to achieving high ionic thermoelectric (i-TE) performance. Herein, we propose a new redox couple, I − /IO 3 - , effectively utilized in the i-TE gel PAM/CMC-I - /IO 3 - -[HeMIM]Cl. By combining the thermogalvanic effect and the thermodiffusion effect, the i-TE performance is enhanced, demonstrating an n-type ionic thermopower of −11.1 mV K −1 and a normalized maximum output power density of 0.47 mW m −2 K −2 at 313 K. The mechanical properties of the i-TE gel exhibit 480% strain and strong adhesion to various materials. In addition, a gel device connecting twenty-five gel thermocells in series generates a high output voltage of 2.2 V, sufficient to drive a buzzer, highlighting the application potential of the i-TE gel with the I − /IO 3 - redox couple. This work broadens the range of redox couples applicable in i-TE systems, offering versatility for designing high-performance gels.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Chenhui Yan,Bowen Zhang,Xing Ai,Chunping Xie,Tao Wang,Jinglin Huang,Guo Chen,Xiaoshan He,Yansong Liu,Zhibing He
Radioiodine anions (I and IO 3 ) pose a serious threat to the environment and human health due to their high radioactivity and solubility. Therefore, it is important to develop efficient and economical adsorbent materials for radioiodine anions. In this work, combined with the excellent properties of chitosan (CS) and (3-acrylamidopropyl) trimethylammonium chloride (AMPTAC), a novel interpenetrating network hydrogel CS@AMPTAC was synthesized to improve the adsorption efficiency of CS hydrogel for I and IO 3 . Due to the electrostatic interaction and anion exchange ability of the quaternary ammonium group (−N + (CH 3 ) 3 Cl⁻), the introduction of AMPTAC constructs a more complex and effective adsorption sites for CS@AMPTAC. Combined with the protonated amino group (−NH 3 + ) in CS, the CS@AMPTAC showed better adsorption efficiency and anti-interference performance than CS. The CS@AMPTAC hydrogel shows excellent adsorption performance over a wide pH range (pH 2–11), which overcomes the sensitivity of traditional adsorbents to pH. Meanwhile, the maximum adsorption capacities of CS@AMPTAC for I and IO 3 are 359.9 mg/g and 312.64 mg/g, respectively, which exhibits remarkable enhancements of 246.26 mg/g and 267.34 mg/g compared to CS. In addition, based on the synergistic adsorption mechanism and the hydrophilicity of CS@AMPTAC, the hydrogel can reach adsorption equilibrium within 30 min. The synergic strategy shows great potential for application in the treatment of radioiodine anions.
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JOURNAL OF CONTROLLED RELEASE
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2026
·
IF 11.5
Ping Li,Qianying Li,Lu Ding,Wan Zhang,Shiyu Peng,Hui Wei,Xuanqi Zhao,Tingtao Chen,Yonghua Xiong,Benzhong Tang,Xiaolin Huang
Bacteria are emerging as a promising tool for targeted cancer therapy due to their innate tumor-homing ability, high mobility, and capacity to rapidly colonize in the tumor microenvironment (TME). However, bacterial cancer therapy (BCT) alone has not proven fully effective. Herein, we present an innovative bio-therapeutic system, TEPy@VNP-D, which integrates genetically engineered Salmonella typhimurium VNP20009 carrying humanized DNase I toxin plasmids (VNP-D) with an aggregation-induced emission photosensitizer (TEPy), enabling photoimmunotherapy for melanoma. Leveraging the tumor-targeting properties of VNP20009, TEPy@VNP-D ensures effective delivery of both TEPy and DNase I to tumor sites, promoting the intratumoral accumulation of cytotoxic agents. Upon light activation, TEPy@VNP-D not only disrupts bacterial structures, facilitating plasmid release but also directly kills cancer cells through the generation of cytotoxic reactive oxygen species. Accordingly, the synergistic effects of photodynamic therapy (PDT) from TEPy and tumor lysis by VNP-D result in significant tumor suppression. Furthermore, TEPy@VNP-D enhances both innate and adaptive immune responses by triggering immunogenic cell death and remodeling the immunosuppressive TME. When combined with anti-PD-L1 antibody, TEPy@VNP-D elicits remarkable synergistic effects under light irradiation, effectively eliminating distant abscopal tumors and establishing robust immune memory to prevent recurrence and rechallenge. Together, the TEPy@VNP-D-mediated BCT synergized photoimmunotherapy strategy offers a powerful, tailored approach to cancer treatment, achieving cooperative antitumor activity with reduced toxicity. This promising approach holds great potential for advancing combination cancer therapies.
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