ACS Applied Nano Materials
·
2026
·
IF 5.8
Ying Li,Yaozu Jia,Lili Wu,Hong Gao,Jing Yao
Lithium–sulfur batteries (LSBs) have attracted significant attention due to their high energy density and low cost. However, further progress in this technology is severely hindered by the shuttle effect of lithium polysulfides (LiPSs) and the sluggish redox kinetics of sulfur cathodes. To overcome these challenges, the application of nanocatalysts into the separators of LSBs boosts the LiPS conversion efficiency. In this study, MoOx (2 < x < 3) submicrometer rods with different oxidation levels are fabricated through precise temperature and atmosphere process parameters. The results show that the composite crystal structure material combines the high electrical conductivity of MoO2 with the high catalytic activity of MoO3, and when used to modify the polypropylene separator, it exhibits catalytic activity for the sulfur reduction reaction and the sulfur evolution reaction. The LSBs deliver a discharge specific capacity of 632.8 mAh g–1 at 8 C and maintain stable cycling for 700 cycles at 1 C, with 0.056% capacity decay per cycle. This study provides a pathway for the preparation of bifunctional catalysis with an integrated structure for LSBs.
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OPTICAL MATERIALS
·
2026
·
IF 4.3
Zongming Yu,Zuhuan Lu,Yukun Wang,Yuanhao Li,Tianyi Zhang,Wenhong Sun
Improving detector performance through simple doping engineering of hole transport layers. • 3-Bromopyridine, as a dual function dopant of Spiro-OMeTAD, can enhance ion transport and passivate defects to achieve the synergistic optimization of transport and stability. • The device is self-powered, the external quantum efficiency of the device is 90%, the dark current density is reduced by two orders of magnitude, the detection rate is increased to 2.77 × 10 13 Jones, and the linear dynamic range is widened to 168.23 dB. Spiro-OMeTAD (2,2′,7,7′-Tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene) is widely used as the hole-transport layer (HTL) in perovskite optoelectronic devices due to its solution processability and favorable material properties. However, undoped Spiro-OMeTAD exhibits inherently low electrical conductivity, necessitating dopants such as lithium bis(trifluoromethanesulphonyl)imide (Li-TFSI) to enhance its charge transport properties. Nevertheless, Li-TFSI possesses strong hygroscopicity and is prone to aggregation within the Spiro-OMeTAD film, which significantly compromises both device performance and stability. To address this challenge, we report a dual-functional strategy that employs 3-Bromopyridine (3-BP) as a dopant to simultaneously enhance hole transport and provide interfacial passivation in Spiro-OMeTAD HTLs. The pyridine nitrogen atom in 3-BP coordinates with Li + ions, weakening Li + –TFSI - interactions and consequently enhancing the mobility of TFSI − anions and the overall film conductivity. Simultaneously, the bromine atom forms halogen bonds with the methoxy oxygen atoms of Spiro-OMeTAD, which strengthens intermolecular interactions and passivates defects. Optimal doping at 2 wt% 3-BP leads to significant performance enhancements: the external quantum efficiency (EQE) increases from 82% to 90%, the dark current density (J d ) decreases by two orders of magnitude (from 7.46× 10 −8 A/cm 2 to 8.71 × 10 −10 A/cm 2 ), and the stability is enhanced, retaining 83.77% of its initial EQE after 500 h of unencapsulated storage in ambient air.
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Foods
·
2026
·Vol. 15
·期 10
·1781
·
IF 6
Yajing Qi,Mengjie Gao,Jiahao Cheng,Tianxiang Yang,En Han,Bin Xu
This study aimed to elucidate the impact of environmental factors on the efficacy of epigallocatechin gallate (EGCG) in inhibiting acrylamide formation and to clarify the role of the 3-aminopropionamide (3-APA) pathway in this process. Asparagine–glucose and 3-APA model systems were employed for the investigation. The results revealed that EGCG exerted a pronounced, condition-dependent inhibitory effect on acrylamide formation during the Maillard reaction. The maximum inhibition rate of 91% was observed at 180 °C and pH 6.0 without metal ions, while alkaline conditions, excessive heating, and Fe3+markedly weakened the inhibitory capacity of EGCG. In the 3-APA model, a positive correlation (R2= 0.9111) was found between acrylamide generation and EGCG oxidation, and the keyo-quinone-derived adduct was identified as an indirect evidence for EGCG oxidation. Collectively, the redox state of EGCG, which is highly susceptible to food processing conditions, may modulate its anti-acrylamide activity. These findings provide valuable mechanistic insights for the rational application of EGCG to mitigate acrylamide contamination in thermally processed foods.
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JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Wei Du,Jing Xie,Jianlei Qi,Dan Zhou,Jianzhong Yin
The recycling of polyethylene terephthalate (PET), a widely used polyester plastic, has become an increasingly significant issue. This study aims to develop an efficient and environmentally friendly catalytic system for the degradation of waste PET and realize the resource utilization of polyester. The methanolysis of PET was investigated using 1-ethyl-3-methylimidazolium tetrafluoroborate ([Emim]BF 4 ) as a catalyst. The effects of temperature, time, [Emim]BF 4 dosage, and methanol dosage on the reaction were systematically examined. The conversion of PET reached 100% with a dimethyl terephthalate (DMT) yield of 74.06% under optimal conditions: 200°C, 2 h, a PET-to-[Emim]BF 4 mass ratio of 5:1, and a PET-to-methanol mass ratio of 6:1. Kinetic analysis revealed that the reaction followed first-order kinetics, with an apparent activation energy of 51.16 kJ/mol. A possible mechanism for the [Emim]BF 4 -catalyzed methanolysis of PET was proposed. Furthermore, density functional theory (DFT) calculations demonstrated that [Emim]BF 4 could effectively reduce both the reaction energy barriers and the final-state energy, thereby enhancing the reaction rate and favoring the forward progression of the reaction.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Lirong Yang,Hui Li,Fubao Zhang,Xun Wang,Xiaona Zhai,Yin Qiao,Haixia Qi,Haoyuan You,Feng Liu
A hierarchical 3-tier architecture was constructed on the surface of zwitterionic M1 / M2 membranes. • M1 and M2 membranes showed excellent antifouling performance with FRR reaching 93.75 % and 95.93 %. • M1 and M2 membranes showed good anticoagulant activity with PRT reaching 28.9 and 32.1 min. • M1 and M2 membranes showed low immune response with C5a decreasing to 1.62 and 1.31 ng/mL. Although polyethersulfone (PES) ultrafiltration membranes possess good thermal stability, mechanical stability, and biocompatibility, their inherent hydrophobicity leads to severe organic fouling and flux decline. Herein, a synergistic modification strategy combining fluorination and zwitterionization is proposed to address this issue. A three-tier hierarchical structure was constructed on the surfaces of the M1 and M2 membranes, consisting of an outer zwitterion-induced highly hydrophilic hydration layer, an intermediate CF 3 -induced hydrophobic low-surface-energy lubricious layer, and an underlying imidazole N–H-induced hydrogen-bonded hydration layer. This unique surface design endows the membrane surface with a biointerface featuring high permeability, low fouling, and hemocompatibility. Compared with the pristine PES membrane (M0), the M1 and M2 membranes exhibit significantly enhanced pure water flux (271.6 and 292.0L m −2 h −1 , respectively, vs. 241.1 L m −2 h −1 for M0), substantially reduced bovine serum albumin adsorption (30.56 and 17.67μg cm −2 , respectively, vs. 171.98μg cm −2 for M0), as well as markedly suppressed erythrocyte and platelet adhesion, with antibacterial adhesion efficiency exceeding 90 % for both membranes. Hemocompatibility tests further demonstrate that the zwitterionic membranes achieve hemolysis ratios as low as 0.39 % and 0.34 %, respectively, along with favorable anticoagulant properties and the ability to inhibit complement activation. A hierarchical 3-tier architecture constructed by zwitterionic fluorinated PES provides a promising solution to create excellent biointerface for heavily used UF membranes. Download: Download high-res image (145KB) Download: Download full-size image
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Surfaces and Interfaces
·
2026
·
IF 6
Suping Jia,Xinyu Chen,Yan Zhou,Jie Jiang,Huinian Zhang,Yujuan Zhang,Qing Chang
The main challenge of applying low-temperature-prepared TiO 2 (LTP-TiO 2 ) to perovskite solar cells lies in its high density of defect states, which adversely affects electron transport at the interface and within the electron transport layer. Through strategic utilization of the ionic liquid 1-ethyl-3-methylimidazolium acetate (EMIMAc), we developed an effective approach to passivate defect states of LTP-TiO 2 and enhance electron transport dynamics in perovskite photovoltaic devices. This ionic liquid additive simultaneously suppresses non-radiative recombination and improves electron extraction efficiency at the perovskite/TiO 2 interface. The EMIMAc-modified TiO 2 demonstrates an optimized electron mobility of 4.16×10 −5 cm²·υ⁻¹·s⁻¹, yielding a higher power conversion efficiency (PCE) of 21.03% with superior stability, thus marking a substantial enhancement over unmodified devices. Download: Download high-res image (212KB) Download: Download full-size image Ionic liquid 1-ethyl-3-methylimidazolium acetate (EMIMAc) possesses an acetate anion that can strongly coordinate with under-coordinated Ti 4+ sites and passivate oxygen vacancies on the TiO 2 surface, while the imidazolium cation interacts with the perovskite to suppress interfacial defects. It can simultaneously suppress non-radiative recombination, improve charge extraction efficiency at the perovskite/TiO 2 interface and enhance the electron mobility of TiO 2 . A high efficiency of 21.03% with negligible hysteresis, improved stability was obtained when used low-temperature-processed TiO 2 as electron transport material in perovskite solar cells.
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NEW PHYTOLOGIST
·
2026
·
IF 8.7
Lele Chu,Xiangming Shang,Bachar Dahro,Xi Zeng,Wenqiang Hu,Chunlong Li,Ji-Hong Liu
Summary Ethylene exerts a divergent role in modulating plant organ abscission. Spermidine (Spd) shares a common precursor for de novo biosynthesis with ethylene, but the antagonistic role between them in the regulation of plant organ abscission remains largely elusive. Here, RNA-sequencing of abscission zones from ethylene-treated sweet orange ( Citrus sinensis L.) fruit led to the identification of two ethylene-responsive factors (ERFs), CsERF113 and CsERF7. CsERF113 functioned in promoting fruit abscission and suppressed Spd accumulation, whereas CsERF7 exhibited an opposite trend. CsERF113 and CsERF7 were verified to act as a transcriptional repressor or an activator of CsSAMDC1 / 2 / 3 encoding S -adenosylmethionine decarboxylase (SAMDC), an enzyme responsible for Spd biosynthesis, by binding directly to their promoters in an ethylene-dependent manner. Moreover, CsSAMDC1 / 2 / 3 functioned to inhibit fruit abscission by promoting Spd synthesis. Interestingly, CsERF7 and CsERF113 transcriptionally repressed each other to modulate the ethylene-mediated downregulation of CsSAMDC1 / 2 / 3 , forming an antagonistic regulatory circuit that could be negatively orchestrated by exogenous Spd. Taken together, our results uncover that CsERF113 and CsERF7 integrate the ethylene signal to antagonistically regulate CsSAMDC1 / 2 / 3 -mediated synthesis of Spd and fruit abscission. This study provides important insights into understanding the molecular mechanisms by which ethylene and Spd antagonize to modulate fruit abscission.
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高影响因子
ChemSusChem
·
2026
·Vol. 19
·期 12
·e70812
·
IF 5.9
Mengyao Guo,Jinxiong Wan,Jihuai Wu,Ying Wang,Weichun Pan,Shen Zhang,Guohua Chen,Yiming Xie,Xuping Liu,Zhang Lan
Power conversion efficiency (PCE) is limited by the high density of defects and poor energy level alignment of the SnO 2 /perovskite (PVK) buried interface in perovskite solar cells (PSCs). Herein, a synergistic molecular interface engineering strategy is designed by using an ionic liquid, 1-dodecyl-3-methylimidazolium bis(trifluoromethanesulfonyl) imide salt (DMIMTFSI) to modify this critical interface. The strong electron-withdrawing TFSI − anion induces a downward shift of the conduction band of SnO 2 , thereby optimizing energy level alignment and facilitating electron extraction. Meanwhile, the DMIM + cation passivates interfacial defects through robust chemical interactions with Pb 2+ and I − ions. Furthermore, the long alkyl chain of DMIMTFSI templates the formation of an ordered porous PbI 2 morphology, which improves the crystallinity of the overlying PVK film. The DMIMTFSI modification reduces the trap-state density by 31.86%, prolongs the carrier lifetime by 39.42%, and increases the built-in potential from 0.95 to 1.02 V. Therefore, the DMIMTFSI-modified device achieves a PCE of 24.14%, significantly outperforming the pristine device of 22.34%. The unencapsulated modified device retained 87% of its initial PCE after being stored for 1000 h under ambient conditions, demonstrating excellent environmental stability. This work provides a viable multifunctional interface engineering pathway toward high-performance and stable PSCs. Graphical The insertion of the ionic liquid of 1-dodecyl-3-methylimidazolium bis(trifluoromethanesulfonyl) imide (DMIMTFSI) into the interface of perovskite/tin oxide significantly improves the power conversion efficiency of perovskite solar cells from 22.34% to 24.14%. This is due to the synergistic effect of defect passivation, energy level modulation, and crystal growth promotion of DMIMTFSI.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Hongfei Ma,Yanfang Huang,Yufei Xie,Wenjuan Wang,Guihong Han
Developing materials that combine ultrahigh adsorption capacity with facile solid–liquid separation remains a central challenge in interfacial science for fluoride pollution control. Current research on metal-organic frameworks (MOFs) as adsorption carriers mainly emphasizes structural design, while byproducts generated during MOF synthesis are commonly regarded as useless impurities and consequently neglected. Herein, we report a previously overlooked crystalline byproduct, La(HCOO) 3 , which was initially formed via N , N -dimethylformamide (DMF) hydrolysis during the solvothermal synthesis of La-BDC and can be subsequently controllably synthesized by the deliberate introduction of formic acid. Owing to its uniform and well-defined particle size, La(HCOO) 3 can be readily separated from La-BDC by simple physical sieving, enabling its direct recovery. Inspired by this feature, we propose a “waste-to-resource” strategy by directly employing La(HCOO) 3 as a functional material for fluoride adsorption flotation for the first time. Under optimized conditions, La(HCOO) 3 exhibits a fluoride adsorption efficiency of 96.29% and a flotation separation efficiency of 94.22%, yielding a low effluent turbidity of 4.37 NTU and excellent selectivity. The adsorption process follows a monolayer chemisorption model with a maximum theoretical adsorption capacity of 206.61 mg/g, outperforming many deliberately designed adsorption carriers. Combined characterization and density functional theory (DFT) calculation reveal that fluoride adsorption is governed by the synergistic effects of ligand exchange and electrostatic attraction, while sodium dodecyl sulfate (SDS) enables efficient flotation recovery through chemical adsorption and electrostatic interactions with La(III) sites. This study reveals a novel approach for the interfacial valorization of MOF byproducts and a sustainable route for fluoride remediation.
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BIOSENSORS & BIOELECTRONICS
·
2026
·
IF 11.8
Man Xu,Meijin Li,Dianping Tang
Indole-3-acetic acid (IAA), one of the most important phytohormones, plays critical roles in plant growth, development, and stress response. However, minimally invasive and in-situ monitoring of IAA in living plants remains challenging due to the complex biological matrix and the lack of suitable in vivo sensing platforms. Herein, we report a minimally invasive microneedle electrochemical sensor for in vivo monitoring of IAA in plant leaves. A polymer microneedle array was fabricated and coated with a conductive Au layer, followed by electropolymerization of a molecularly imprinted poly(o-phenylenediamine) (poly-OPD) recognition film using IAA as the template molecule. The resulting microneedle sensor exhibited a selective electrochemical response toward IAA with good anti-interference capability against common electroactive plant metabolites. The sensor showed a linear response toward IAA over a wide concentration range with a low detection limit (0.44 μM). The microscale structure of the microneedles enabled minimally invasive insertion into plant tissues while maintaining structural integrity and stable electrochemical performance of the sensing platform. The developed sensor was further applied for in vivo monitoring of IAA fluctuations in tomato leaves under different physiological conditions. Distinct dynamic electrochemical response patterns were observed between normal and drought-stressed leaves, demonstrating the potential of the microneedle platform for plant physiological analysis and precision agriculture applications. This work provides a promising strategy for minimally invasive phytohormone sensing in living plants and expands the application of microneedle electrochemical devices in plant bioanalysis.
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ChemistrySelect
·
2026
·Vol. 11
·期 28
·e73876
·
IF 2.3
Tao Liu,Huichao Zhang,Bo Huang,Shitong Li,Bin Liu
Mn 2+ -doped perovskite nanocrystals (NCs) have attracted extensive research interest and have been synthesized with sizes in the strong confinement regime. Nevertheless, the size of the doped NCs is still not as small as that of undoped perovskite NCs. To address this, we develop a ligand-assisted reprecipitation method incorporating ultrasonication to synthesize Mn 2+ -doped CsPb(Cl/Br) 3 NCs. The obtained spherical NCs have an average size of 3.1 nm and exhibit orange photoluminescence originating from the 4 T 1 to 6 A 1 transition of Mn 2+ . The luminescent properties correlate with the volume ratio of MnCl 2 to PbBr 2 precursors. Increasing the ratio enhances the Mn 2+ -related emission, while excessive doping leads to photoluminescence quenching. When the precursor ratio is reduced to 1:1, the NCs exhibit both intrinsic exciton and Mn 2+ -related emission, with some particles adopting cubic or rod-like morphologies. Prolonged ultrasonic treatment does not significantly shift the emission peak of the NCs, but promotes superlattice assembly in small-sized NCs, showing a center-to-center separation of 4.2 nm. Subsequently, altering the precursor addition sequence to introduce MnCl 2 last during ultrasonic preparation yields simultaneous formation of spherical and cubic NCs. Finally, post-synthesis doping of Mn 2+ is achieved. Formation of small spherical NCs confirms hypothesis that MnCl 2 induces morphological transformation of NCs. Graphical Ultrasonication-assisted ligand-assisted reprecipitation delivers 3.1 nm Mn 2+ -doped CsPb(Cl/Br) 3 nanocrystals with orange emission from the Mn 2+ 4 T 1 → 6 A 1 transition.
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Journal of Translational Medicine
·
2026
·Vol. 24
·期 1
·1029
·
IF 9.7
Cheng Kai-wen,Zhou Shao-jun,Zeng Jie,Zhang Yang-rui,Jin Bing-qian,Wang Ping,He Ling-yan,Qi Xu-chen,Liu Xu-dong,Yu Lu-shan,Zhang Yan-xing
Background Among tumors affecting the central nervous system (CNS), glioblastoma multiforme (GBM) is the most aggressive and lethal form. Given the complex mechanisms of the CNS and the blood-brain barrier (BBB), effective therapies for GBM remain limited. To identify potential therapeutic candidates for glioma, we developed a small-molecule library to screen for compounds with potent anti-proliferative effects and BBB permeability. The mechanisms underlying their anti-glioma activity were further elucidated to provide insights into new treatment strategies. Methods A library of small molecules was screened to identify agents that significantly inhibit glioma cells activity. The effects of the lead compound (Dihydrotanshinone I, DHT) on glioma progression were evaluated through a series of experimental approaches, including cell counting kit-8 assays, cell cycle analysis, apoptosis detection, wound healing, transwell migration, reactive oxygen measurement, subcutaneous xenograft mouse models, and intracranial orthotopic tumor models. To elucidate the underlying mechanisms, network pharmacology and transcriptomic analyses were employed. The mechanism of DHT in glioma pathogenesis was further validated using bioinformatics analyses and clinical glioma tissue samples. Results Based on pharmacokinetic evaluation, DHT was found to traverse the BBB, indicating its capacity to reach the cerebral parench. In vitro and in vivo experiments demonstrated that DHT significantly suppresses glioma growth and progression. Mechanistic analyses using network pharmacology and RNA sequencing revealed that DHT induces glioma cell apoptosis by inhibiting the Janus kinase-signal transducer and activator of transcription 3 (STAT3) signaling pathway, increasing intracellular reactive oxygen species levels and triggering intrinsic apoptotic cascades. Furthermore, bioinformatic analyses of clinical cohorts coupled with validation in patient-derived glioma specimens confirmed that elevated STAT3 expression was correlated with unfavorable prognosis and was significantly increased in patients with high-grade glioma. Conclusions This study demonstrates that, in addition to its role as a key contributor to glioma malignancy and a prognostic marker, STAT3 is also a target of DHT, highlighting its potential as a promising therapeutic candidate for treating GBM. Graphical
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