ACS Applied Energy Materials
·
2025
·
IF 5.5
Limeng Zhang,Yanlong Xia,Zhigang Che,Boxin Jiao,Xu Wang,Jiacheng Shang,Yurong Zhou,Fengzhen Liu
Tin dioxide (SnO2) has emerged as a highly promising candidate for electron transport layers in perovskite solar cells. However, defects in the SnO2 film and at the interface between SnO2 and perovskite often cause serious nonradiative recombination, resulting in the deterioration of the performance of perovskite solar cells. Herein, a synergistic passivation strategy is employed through the introduction of amphiphilic fluorosurfactants (FS-31) into the SnO2 precursor solution, enabling the passivation of defects present both in the SnO2 film and at the interface between SnO2 and perovskite. Moreover, FS-31 is capable of modulating the energy level of the SnO2 film and enhancing the crystalline quality of the wide-band-gap perovskite, thereby minimizing residual lead iodide. Thanks to the positive effects of FS-31, the n–i–p type wide-band-gap perovskite (1.68 eV) solar cells achieve a champion power conversion efficiency (PCE) of 20.92%, an open circuit voltage (VOC) of 1.24 V, and a minimal VOC deficit of 0.44 V. Furthermore, this simple strategy provides strong support for the preparation of high-efficiency n–i–p perovskite/silicon tandem solar cells.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2022
·
IF 8.025
Xiaoqi Liu,Yanyun Zhang,Yan Liu,Ting'an Zhang
In this paper, a novel grafted zeolite/Fe 3 O 4 /chitosan (ZMC-MAH-TEPA) adsorbent was greenly synthesized and evaluated for the removal of Cr(VI) and Ag(I) in single and bi-component solutions. The characterization data of XRF , XRD, FT-IR, VSM, TGA , BET and SEM showed the successful fabrication of the adsorbent with abundant -NH 2 and -NH- as well as great recovery properties (11.70 emu/g). The effects of experimental parameters, including pH value, initial concentration, temperature, time, and coexisting ions on single and bi-component adsorption, were investigated. The results demonstrated that the adsorption capacities increased with the enhanced shaking time and concentration until equilibrium was reached. The optimum pH value was 3 for Cr(VI) adsorption and 5 for Ag(I) adsorption. The maximum adsorption capacities for Cr(VI) and Ag(I) ions, obtained by the Langmuir model, were 50.75 and 70.12 mg·g −1 in single metal solutions and 45.45 and 58.94 mg·g −1 in bi-component metal solutions (Cr(VI)/Ag(I) = 1:1), respectively. Additionally, the adsorption mechanism of Cr(VI) and Ag(I) was explained in terms of electrostatic interaction and hydrogen bonding between metal ions and -NH 2 and -NH- in ZMC-MAH-TEPA. Taken together, this study provides a clean approach to synthesizing chitosan-based adsorbents for the efficient removal of Cr(VI) and Ag(I) ions.
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Advanced Optical Materials
·
2022
·Vol. 10
·期 12
·2102619
·
IF 10.05
Binbin Su,Jiance Jin,Yinhui Peng,Maxim S. Molokeev,Xiaobao Yang,Zhiguo Xia
The discovery of rare-earth free luminescent materials with blue-light-excitable characteristic is of great importance for solid-sate lighting applications. Herein, a Cu(I)-based 0D luminescent hybrid ( 1,3-dppH 2 ) 2 Cu 4 I 8 ∙H 2 O is synthesized by a facile solution method, and it shows the orange-red emission peaking at 625 nm upon 460 nm excitation. The structure-related luminescence mechanism has been elaborated by experimental and theoretical investigations. Moreover, the emission intensity remains unchanged even after continuous water treatment for 60 days due to the improved structural stability originating from intermolecular π–π interaction between organic cations. A warm white light-emitting diode (LED) device with the color rendering index of 91.4% has been fabricated by combining the 440 nm LED chip, green-emitting Lu 3 Al 5 O 12 :Ce 3+ , and ( 1,3-dppH 2 ) 2 Cu 4 I 8 ∙H 2 O. This work provides a new design route towards 0D cuprous halide materials and will initiate more exploration of their intrinsic luminescence mechanism.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Xiao-Han Pan,Ling-Xiao Fu,Huan Wang,Yi Xue,Jian-Hua Zu
A novel sulfydryl-functionalized adsorbent PP-g-GMA@MEA for recovery of Ag(I) was synthesized by γ-ray induced simultaneous grafting of glycidyl methacrylate (GMA) onto polypropylene (PP) non-woven fabric, followed by ring-opening processes with mercaptoethylamine (MEA). The obtained adsorbents before and after adsorption of Ag(I) were fully characterized by SEM, EDS, FT-IR spectra, XRD and XPS. Batch adsorption experiments were carried out to evaluate adsorption abilities of the adsorbents under high acidity. The adsorption kinetics of Ag(I) were well fitted with pseudo-second-order kinetics model. The maximum adsorption capacity calculated by the Langmuir isotherm model was 262.51 mg/g at 25 °C. EDS, XRD and XPS analyses confirmed the mechanism of adsorption under high acidity was chelating reaction between -SH and Ag(I) and ion exchange adsorption towards [Ag(NO 3 ) 2 ] −1 . Through competitive adsorption tests, the PP-g-GMA@MEA was found remarkably selective towards Ag(I) when it coexisted with Cu(II), Co(II), Ni(II) and Cr(III) in high acidity medium. Therefore, the developed PP-g-GMA@MEA composite would be a promising adsorbent for Ag(I) recovery from industrial effluents.
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MOLECULAR PHARMACEUTICS
·
2024
·
IF 4.5
Xudong Xie,Tiantian Sun,Heyu Pan,Dongliang Ji,Zhongyuan Xu,Ge Gao,Jiefei Miao,Lei Wang,Yanan Zhang,Ji Liu,Yong Ling,Xing Su
Chemo-photodynamic therapy is a treatment method that combines chemotherapy and photodynamic therapy and has demonstrated significant potential in cancer treatment. However, the development of chemo-photodynamic therapeutic agents with fewer side effects still poses a challenge. Herein, we designed and synthesized a novel series of β-carboline/furylmalononitrile hybrids 10a–i and evaluated their chemo-photodynamic therapeutic effects. Most of the compounds were photodynamically active and exhibited cytotoxic effects in four cancer cells. In particular, 10f possessed type-I/II photodynamic characteristics, and its 1O2 quantum yield increased by 3-fold from pH 7.4 to 4.5. Most interestingly, 10f exhibited robust antiproliferative effects by tumor-selective cytotoxicities and hypoxic-overcoming phototoxicities. In addition, 10f generated intracellular ROS and induced hepatocellular apoptosis, mitochondrial damage, and autophagy. Finally, 10f demonstrated extremely low acute toxicity (LD50 = 1415 mg/kg) and a high tumor-inhibitory rate of 80.5% through chemo-photodynamic dual therapy. Our findings may provide a promising framework for the design of new photosensitizers for chemo-photodynamic therapy.
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PubMed
高影响因子
TALANTA
·
2016
·
IF 4.035
Yonghua Xiao,Rong Xiao,Jian Tang,Qiankun Zhu,Xiaoming Li,Yan Xiong,Xuewen Wu
The molecularly imprinted polymers (MIP) were prepared via aqueous RAFT precipitation polymerization, with aristolochic acid I (AAI) as the template molecule, AA as the functional monomer , EGDMA as the cross-linker, AIBN as the chain initiator, CTP as the chain transfer agent and 80% (g/g) DMF-aqueous solution as the porogen . The differential UV–vis spectra revealed that a cooperative hydrogen-bonding complex between AAI and AA might be formed at the molar ratio of 1:3 in prepolymerized system. The synthesized MIPs were characterized by FTIR spectra, solid UV–visible absorption spectra, nitrogen adsorption-desorption isotherms and scanning electron microscope, which proved that the MIPs and NIPs have the similar chemical structures and the adding of AAI could affect the size and morphology of the microspheres . UV–visible absorption spectra and High-performance liquid chromatography (HPLC) was used to investigate the adsorption and recognition properties of the MIPs. The Scatchard isotherm model described that the binding sites independently acted. The Langmuir isotherm model suggested an excellent imprinting effect owing to the presence of a large number of specific binding sites on the MIP. The Freundlich model indicated that the AAI could be readily absorbed by MIP. Selective absorption of the template molecule was demonstrated in presence of its analogous compounds, benzoic acid and nitrobenzene . The recycling experiments implied that the MIP could be reused to further selective recognition and separation to AAI for six times at least. MIP was developed for removal of AAI from the Aristolochia manshuriensis extraction. The results indicated that 25 mg of MIP could remove the AAI below the HPLC detection limits (6.47 ng mL -1 ) from 5.0 mL of the extraction (CAAI=0.0018 mg mL -1 ) with the recovery of AAI to 91.50% (n=3, SD=4.24%). Therefore, it is clearly revealed that the MIP can be a useful tool to remove toxic compounds from natural products .
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2016
·
IF 2.76
Zhihai Cao,Qun Chen,Hangnan Chen,Zhijie Chen,Jia Yao,Shuning Zhao,Yushan Zhang,Dongming Qi
Polymeric/inorganic nanocomposite particles (NCPs) were tentatively prepared through miniemulsion polymerization using sodium dodecyl sulfate (SDS) as the sole surfactant. The representative inorganic nanoparticles (NPs), SiO 2 NPs, were pre-dispersed in monomer solutions. Particle morphology and size of the latex particles in the emulsions prepared from miniemulsions were investigated in terms of the SiO 2 and SDS content. The results indicate that the number fraction of polymer/SiO 2 NCPs ( f NCP ) in the latex particles was below 4%, and that plain polymer particles dominated in all of the emulsions regardless of the SiO 2 and SDS content when the sonication power was 95 W. The centrifugation experiments showed that there were three types of particles in the emulsions, namely, a dominant amount of plain polymer particles, a small amount of polymer/SiO 2 NCPs, and a very small amount of sub-micrometer polymer/SiO 2 aggregates. These particles evolved from small plain monomer droplets, medium monomer droplets containing SiO 2 NPs, and micrometer monomer droplets containing many SiO 2 NPs, respectively. Formation mechanisms of these three types of particles were proposed. On the basis of the mechanism, we used higher sonication power to improve the homogeneity of the number distribution of SiO 2 NPs among monomer droplets. The f NCP value markedly increased to ∼39% upon increase of the sonication power to 190 W. However, the formation efficiency of polymer/SiO 2 NCPs could not be improved with further increase of the sonication power.
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MedComm
·
2024
·Vol. 5
·期 12
·e70033
·
IF 10.7
Jing Li,Mimi Chen,Dingwen Huang,Ziyin Li,Yu Chen,Jinhua Huang,Yuanqun Chen,Zhili Zhou,Zhiying Yu
Ovarian cancer (OV) ranks among the deadliest gynecological cancer, known for its high risk of relapse and metastasis, and a general resistance to conventional platinum‐based chemotherapy. Selenoprotein I (SELENOI) is a crucial mediator implicated in human hereditary spastic paraplegia. However, its role in human tumors remains poorly elucidated. Here, we comprehensively analyzed SELENOI expression patterns, functions, and clinical implications across various malignancies through the integration of bulk transcriptomics, cancer databases, and in vitro and in vivo experiments. Pan‐cancer analysis indicated upregulated SELENOI expression across various cancers, correlating with augmented malignancy, suppressed tumor immunity and poor prognosis. Knockdown of SELENOI caused G0/G1‐phase cell cycle arrest and diminished aggressive cancer phenotypes in OV cells. Moreover, SELENOI inhibition augments ferroptosis and reverses the cisplatin resistance in OV cells by modulating Akt phosphorylation. Conversely, overexpression of SELENOI in OV cells enhanced therapeutic sensitivity to cisplatin by upregulating Akt phosphorylation. Importantly, in vivo studies demonstrated that SELENOI inhibition suppressed ovarian tumor growth and enhanced cisplatin's anticancer effects. These findings highlight the significant role of SELENOI in OV by modulating ferroptosis and chemotherapy resistance. Targeting SELENOI represents a promising therapeutic approach to promote the efficacy of platinum‐based chemotherapy in OV, particularly in cases of resistance. Graphic summary of targeting SELENOI for promoting ferroptosis and reversing chemoresistance in ovarian cancer. Inhibition of SELENOI activated unsaturated fatty acid synthesis and impaired Akt phosphorylation, resulting in the upregulation of ACSL4 expression and induction of ferroptosis. Reduced Akt phosphorylation also led to the downregulation of ALDH3A1 expression, a key gene associated with cisplatin‐resistance, thereby enhancing cisplatin cytotoxicity in SELENOI‐silenced ovarian cancer cells.
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高影响因子
Biochar
·
2023
·Vol. 5
·期 1
·1-16
·
IF 12.7
Liu Fenglei,Wang Shanshan,Zhao Chaofeng,Hu Baowei
Herein, a biochar-based composite (Ti 3 C 2 T x @biochar-PDA/PEI) was constructed by decorating Ti 3 C 2 T x and polydopamine on coconut shell biochar via electrostatic self-assembly method. Different characterization techniques were applied to explore the structure, morphology and composition of the sorbents. It was found that the higher porosity and diverse functional groups were conducive for Ti 3 C 2 T x @biochar-PDA/PEI to capture radionuclides, and the water environmental conditions made a great contribution to the adsorption process. The process of removing U(VI)/Cs(I) well complied with the Langmuir isotherm and Pseudo-second-order equations, which indicated that the single layer chemical adsorption occurred on the solid liquid interface. Meanwhile, this produced composite exhibited superior removal performance under complex co-existing ion environment, and the maximum adsorption amounts of U(VI) and Cs(I) reached up to 239.7 and 40.3 mg g −1 . Impressively, this adsorbent still exhibited good adsorption performance after three cycles of regeneration. The spectral analysis and DFT calculation demonstrated that adsorption of U(VI) might be a chemical process, while the adsorption of Cs(I) should be ion exchange or electrostatic attraction. This study demonstrated the potential application of Ti 3 C 2 T x @biochar-PDA/PEI as an effective remediation strategy for radioactive wastewater cleanup. Graphical Abstract
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ORGANIC ELECTRONICS
·
2021
·
IF 3.721
Ting-Hong Huang,Cheng Luo,Dan Zheng
Cationic and neutral mononuclear Cu(I) complexes, [Cu(PPh 3 ) 2 (PmH)]BF 4 (1a), [Cu(DPEphos) (PmH)]BF 4 (2a), [Cu(Xantphos) (PmH)]BF 4 (3a), [Cu(PPh 3 ) 2 (Pm)] (1b), [Cu(DPEphos) (Pm)] (2b) and [Cu(Xantphos) (Pm)] (3b) (PPh 3 = triphenylphosphine , DPEphos = bis(2-diphenylphosphinophenyl)ether, Xantphos = 9, 9-dimethyl-bis(diphenylphosphino)xanthenes, PmH = 2-(pyridin-2-yl)benzimidazole, Pm=(2-(Pyridin-2-yl)benzimidazolate), have been prepared and characterized by IR, 1 H NMR, 13 C NMR, 31 P NMR, XRD, elemental analysis and X-ray crystal structure analysis. The structural analysis shows that each of Cu(I) complexes includes a tetrahedral [Cu(NN) (PP)] + moiety, and temperature variation from 99 K to 298 K leads to the change of bonds lengths, angles and weak interactions. Meanwhile, theoretical calculations indicate that the differences between cationic and neutral Cu(I) complexes affect the composition of HOMO and LUMO orbitals, and the effect of temperature on Mülliken atomic charges is limited. Furthermore, neutral Cu(I) complexes 1b–3b show better luminescence in comparison to cationic Cu(I) complexes 1a-3a at room temperature , and temperature variations from 99 K to 298 K result in changing photoluminescence to some extent, which partly agrees with the related calculation results. In these cationic and neutral Cu(I) complexes, the maximum phosphorescent lifetime and quantum yield reach respectively 137 μs and 42% at room temperature. Moreover, cationic and neutral Cu(I) complexes are utilized to fabricate the monochromatic LEDs, showing favorable electroluminescence with the maximum EQE of 7.10%.
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FOOD HYDROCOLLOIDS
·
2025
·
IF 12.4
Ding An,Wenjing Chen,Hongshan Liang,Jing Li,Peiyuan Zhou,Bin Li
Ethanol induction typically results in the contraction of the polysaccharide molecular chain and a decrease in viscosity. However, this study reveals an unexpected dual behavior in psyllium seed husk polysaccharides (PSHPs). The viscosity of the cold ethanol-water extracted polysaccharide (CEP, containing 9.42 % rhamnose and 7.40 % galacturonic acid) increased by 154 % in the presence of 25 % ethanol compared to its viscosity in aqueous solution. In contrast, under identical conditions, the viscosity of the hot ethanol-water extracted polysaccharide (HEP, containing 1.21 % rhamnose and 1.53 % galacturonic acid) decreased by 99 %. Through multi-scale characterization, including intrinsic viscosity ([η]), radius of gyration (R g ), atomic force microscopy (AFM), and rheology, we observed that both CEP and HEP exhibited chain contraction and aggregation under ethanol-induced conditions. However, significant differences in rhamnogalacturonan-I (RG-I) content resulted in distinct degrees of contraction and aggregation behaviors. Upon increasing the ethanol concentration from 0 % to 20 %, the R g of CEP decreased by 30 %, whereas the R g of HEP exhibited a more substantial reduction, by 71 %. For CEP, ethanol substantially mitigated the steric hindrance effect of RG-I, thereby enhancing intermolecular interactions and increasing the entanglement network density. In contrast, the pronounced chain contraction of HEP disrupted the original entanglement network structure. This RG-I-dependent aggregation behavior represents a significant addition to the traditional solvent effect theory and also provides a robust theoretical foundation for the diverse applications of PSHPs.
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高影响因子
TALANTA
·
2025
·
IF 6.1
Jun Chen,Xuanxu Nan,Li Yang,Yue Cui
Cardiac troponin I (cTnI) is a highly specific biomarker of cardiomyocyte injury, released during cell disintegration and necrosis, and is the gold standard for diagnosing acute myocardial infarction (AMI). At the onset of AMI, cTnI appears in very low concentrations (pg/mL level), necessitating the development of highly sensitive and rapid detection sensors. In this study, an electrochemiluminescence lateral flow immunosensor (ECL-LFI) was designed using luminol-labeled silver nanoparticles (luminol@AgNPs) for the sensitive and quantitative detection of cTnI. A screen-printed electrode (SPE) was integrated beneath the nitrocellulose (NC) membrane with plastic plates of the same thickness applied on both sides of the SPE to ensure a smooth flow surface. Upon addition of cTnI and the luminol-H 2 O 2 system, sandwich immune complexes formed by antibody-functionalized luminol@AgNPs on the strips generated electrochemiluminescent (ECL) signals. The ECL-LFI exhibited a broad linear detection range from 5 pg/mL to 100 ng/mL, with a detection limit as low as 1.6 pg/mL. Additionally, the results show excellent correlation with clinical tests, demonstrating that the ECL-LFI provides a promising point-of-care tool for the early diagnosis of AMI and other diseases.
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高影响因子
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