Laser & Photonics Reviews
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2025
·
IF 10
Mengxin Liu,Jiejun Pan,Xinan Shi,Bingsuo Zou,Daocheng Pan
Rare-earth doped metal oxide nanocrystals with high visible luminescence have been widely used in lighting and display applications owing to their low toxicity, and excellent thermal and chemical stability. However, the room-temperature preparation of near-infrared (NIR) luminescent rare-earth doped metal oxide nanocrystals remains a challenge. Herein, sub-4 nm Yb 3+ /Nd 3+ -doped CaMoO 4 nanoparticles are prepared by a facile room-temperature ligand-assisted coprecipitation method, which can be completed within 1 min under ambient conditions. Short-chain butyric acid and butylamine as binary ligands play a crucial role in the synthesis of NIR luminescent nanoparticles. The as-prepared nanocrystals can be well dispersed in organic solvents such as chloroform since they are capped with butyric acid and butylamine. The energy transfers from MoO 4 2 − ${\rm MoO}^{2-}_{4}$ ions to Yb 3+ and Nd 3+ ions are systematically investigated in CaMoO 4 :Yb 3+ and CaMoO 4 :Nd 3+ nanoparticles, respectively. More importantly, this ultrafast and room-temperature synthesis strategy is particularly suitable for the large-scale preparation of Yb 3+ /Nd 3+ -doped CaMoO 4 nanoparticles (≈23 g) with NIR emission, which provides new ideas and possibilities for the commercial production of extremely small and NIR-emitting nanophosphors.
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高影响因子
ChemSusChem
·
2025
·
IF 6.6
Umar Farooq,Boyang Han,Usman Ali Shah,Fa Yang,Sheng Li,Yanping Song,Ali Hassan,Zhengquan Li,Jin Wang
The efficiency of earth-abundant kesterite Cu2ZnSn(S,Se)4 (CZTSSe) solar cells has been lagging behind the Shockley-Queisser limit primarily due to the presence of deep-level defects. These deep-level defects cause critical issues such as short carrier diffusion length, significant band tailing, and a large open-circuit voltage (VOC) deficit, ultimately leading to low device efficiency. To address these issues, we propose a post-fabrication defect healing strategy by dip-coating the CZTSSe film in dimethylformamide (DMF) solvent. Immersing the absorber layer in DMF (a polar solvent), neutralizes CuSn antisite defects through chemical bonding and facilitates the formation of a dense, smooth CZTSSe film with larger grain size. Deep-level transient spectroscopy revealed a remarkable increase in carrier diffusion length from 93 nm (control device) to 142 nm (champion device), confirming the beneficial effect of solvent-assisted post-treatment on mitigating CuSn antisite defects. The reduction in defect densities led to a decrease in VOC deficit by up to 289 mV, accompanied by an increased champion device efficiency of 11.4%. This work highlights the huge potential of the DMF post-treatment strategy for defect healing in CZTSSe solar cells.
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PubMed
高影响因子
FOOD RESEARCH INTERNATIONAL
·
2024
·
IF 7
Rong Liu,Lingxuan Huang,Xuan Feng,Di Wang,Rasika Gunarathne,QingJun Kong,Jun Lu,Xueyan Ren
Aspergillus carbonarius , a common food-contaminating fungus, produces ochratoxin A (OTA) and poses a risk to human health. This study aimed to assess the inhibitory activity of tea tree essential oil and its main components, Terpene-4-ol (T4), α-terpineol (αS), and 3-carene (3C) against A. carbonarius . The study showed αS and T4 were the main antifungal components of tea tree essential oil, which primarily inhibit A. carbonarius growth through cell membrane disruption, reducing antioxidant enzyme activities (catalase, peroxidase, superoxide dismutase) and interrupting the tricarboxylic acid cycle. Furthermore, αS and T4 interacted with enzymes related to OTA biosynthesis. Molecular docking and molecular dynamics show that they bound mainly to P450 with a minimum binding energy of −7.232 kcal/mol, we infered that blocking the synthesis of OTA precursor OTβ. Our hypothesis was preliminarily verified by the detection of key substances in the OTA synthesis pathway. The results of UHPLC-QTOF-MS 2 analysis demonstrated that T4 achieved a degradation rate of 43 % for OTA, while αS reached 29.6 %, resulting in final breakdown products such as OTα and phenylalanine. These results indicated that α-terpinol and Terpene-4-ol have the potential to be used as naturally safe and efficient preservatives or active packaging to prevent OTA contamination.
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PubMed
高影响因子
CARBOHYDRATE RESEARCH
·
2019
·
IF 1.873
Zhihua Chai,Lixiao Ma,Ruiting Meng,Shan Liu,Yanxia Wang
Gold nanoparticles (AuNPs) were prepared by a solvothermal method using sodium alginate (SA) as both, the reductant and stabilizer . The formation of SA-AuNPs was confirmed by UV–Vis spectroscopy, transmission electron microscopy , X-ray diffractometry, and X-ray photoelectron spectroscopy . SA-AuNPs were functionalized with fluorescent 3-(dansylamino)phenylboronic acid (DAPB) moieties, through interactions between boronic acids and diol groups. The fluorescence resonance energy transfer from DAPB to AuNPs quenched the fluorescence of DAPB. In the presence of glucose, the competitive binding of DAPB with glucose resulted in the release of assembled DAPB from the surface of SA-AuNPs, resulting in the increase in fluorescence intensity . Furthermore, catalytic reduction of 4-nitrophenol was monitored via spectrophotometry using DAPB functionalized SA-AuNPs probes as catalyst. Compared to SA-AuNPs, the nanoprobes exhibited higher catalytic rates.
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高影响因子
TALANTA
·
2014
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IF 3.511
Wei Rao,Rong Cai,Yuli Yin,Fang Long,Zhaohui Zhang
In this paper, a highly selective sample clean-up procedure combining magnetic dummy molecular imprinting with solid-phase extraction was developed for rapid separation and determination of 4-nonylphenol (NP) in the environmental water samples. The magnetic dummy molecularly imprinted polymers (mag-DMIPs) based on multi-walled carbon nanotubes were successfully synthesized with a surface molecular imprinting technique using 4-tert-octylphenol as the dummy template and tetraethylorthosilicate as the cross-linker. The maximum adsorption capacity of the mag-DMIPs for NP was 52.4 mg g −1 and it took about 20 min to achieve the adsorption equilibrium. The mag-DMIPs exhibited the specific selective adsorption toward NP. Coupled with high performance liquid chromatography analysis, the mag-DMIPs were used to extract solid-phase and detect NP in real water samples successfully with the recoveries of 88.6–98.1%.
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高影响因子
OPTICAL MATERIALS
·
2023
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IF 3.9
Jun Sun,Wei Zhu,Bei Zhang,Feifei Huang,Limin Hu,Hongping Ma,Renguang Ye,Youjie Hua,Shiqing Xu
Full-spectrum white LED (w-LED) lighting is primarily achieved through the combination of multiple-color phosphors excited by the chip, and making the development of efficient multi-color phosphors based on single matrix is an excellent choice for full-spectrum w-LED. In this paper, a series of Rb 2 KNa(Li 3 SiO 4 ) 4 : xEu 2+ (0.1 % ≤ x ≤ 15 %) phosphors were successfully synthesized via high-temperature solid-state reaction with varied Eu 2+ concentration. At low doping concentration, the Eu 2+ ions exhibit primarily green emission at 530 nm in the phosphor. However, as the doping concentration of Eu 2+ ions increase, the emission spectrum undergoes a significant transformation. A cyan emission occurs at 478 nm, resulting in the spectral conversion from a green single-peak emission to a dual-peak emission of cyan and green. The spectral conversion is attributed to the changes in the positioning of Eu 2+ ions within the crystal lattice . The obtained phosphors demonstrate excellent thermal stability and can be utilized in w-LED devices. After encapsulation with a blue LED chip, it achieves a color rendering index of 91.8 and a correlated color temperature of 4085 K, showcasing its significant application value in the field of full-spectrum w-LED.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2015
·Vol. 132
·期 18
·
IF 1.768
Hongchuan Wu,Zhiguo Li,Libin Zhu,Jiyou Gu
Aqueous polyurethane micelles from 2,4,6-trichlorphenol blocking terminal-isocynate pre-polymer were prepared which could be de-blocked at low temperature. The prepared aqueous blocked polyurethane micelles (BPUMs) were uniform and spherical micro-particles. The particle size was decreased with increase of the DMPA content, while it was enlarged at first and then gradually decreased by increasing R -value. The stability of the micelles was affected by the R value, blocked efficiency and DMPA content. HDI-BPUMs were more stable than HDI-BPUMs at the same condition. The stability was further researched by the zeta potential combining with technique and viscosity tracking method, and the initial zeta potential be used as the stability criterion. In addition, a stabilization mechanism of the micelles was proposed. TCP-blocked TDI-BPUMs could be initially de-blocked at about 75°C and TCP-blocked HDI-BPUMs was de-blocked at about 80°C. The de-blocking temperature could be further reduced in the presence of catalyst, but it was scarcely affected by the change of R -value and DMPA content. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41908
研究领域:
高分子化学
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胶体与界面科学
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材料化学
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功能材料
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纳米材料
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高影响因子
RSC Advances
·
2015
·Vol. 5
·期 27
·20741-20746
·
IF 3.84
Ge Sheng,Guiyun Xu,Shenghao Xu,Shiying Wang,Xiliang Luo
A conducting polymer based composite material of poly(3,4-ethylenedioxythiophene) (PEDOT) doped with pure insoluble ionic liquid (IL), 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, was prepared through a cost-effective electrodeposition method. A very tiny amount of insoluble IL (less than 15 μL), containing 0.1 M conducting polymer monomer, was drop-coated on an electrode surface and then used for electropolymerization using a homemade electrochemical cell filled with aqueous supporting electrolyte. With this design, the consumption of expensive IL for the preparation of the PEDOT/IL composite was greatly reduced, and thus effectively reduced the cost. The prepared PEDOT/IL composite was found to be highly conductive and stable, and it exhibited a highly nanoporous microstructure and excellent electrocatalytic activity toward the oxidation of dopamine (DA). Based on the excellent stability and electrocatalytic activity of the PEDOT/IL nanocomposite, a highly stable, sensitive and selective DA sensor with a detection limit of about 51 nM was developed.
研究领域:
分析化学
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生物传感器
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纳米材料
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电化学
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神经化学
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转化医学
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2016
·Vol. 134
·期 1
·
IF 1.866
Zhaowei Wang,Zhixia Wen,Xing Li,Junwei Yu,Xiaoxuan Liu
The preparation of the high cis −1,4-polyisoprene by Ziegler-Natta catalysis system was studied. The effect of Al-Ti catalysts modified by ethers with different structures which are different electron donor reagent on polymerization of isoprene has been mainly investigated. By the measurement method of the monomer conversion, FTIR, and 1 H NMR spectroscopy, the influence of, respectively, added diphenyl ether, anisole, dibutyl ether, or methyl tert -butyl methyl ether as a third active component on the heterogeneous TiCl 4 -Al( i -Bu) 3 -ether catalyst activity and microstructure of synthetic polyisoprene was analyzed. By the adding of diphenyl ether or dibutyl ether, the process of prefabricated heterogeneous catalyst is quickly and catalyst particle quantity is large. The polymerization conversion is high and the microstructure cis −1,4 content of the resulting polymer can reach 92%. But Al( i -Bu) 3 added anisole or methyl tert -butyl methyl ether hard to cooperate with TiCl 4 . © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 44357.
研究领域:
高分子化学
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催化化学
·
功能材料
·
合成高分子
·
配位聚合
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高影响因子
Laser & Photonics Reviews
·
2026
·
IF 9.7
Dawei Wen,Haoyuan Weng,Bin Xiao,Pan Wang,Ruijing Fu,Zhiwei Ma,Qingguang Zeng,Guanjun Xiao
Luminescence pressure sensors, valued for their remote sensing capability and high resolution, have been developed recently. However, most current sensors rely on a linear relationship between an optical property and pressure. We propose a nonlinear machine learning (ML) method to model the luminescence intensity ratio (LIR) as a function of pressure. The versatility and performance of this method are demonstrated using (Y,Gd)(Al,Ga) 3 (BO 3 ) 4 :Cr 3+ phosphors as luminescent pressure sensors. The relative sensitivities of the 2 E → 4 A 2 / 4 T 2 → 4 A 2 LIRs in (Y,Gd)(Al,Ga) 3 (BO 3 ) 4 :Cr 3+ range from 1.58%/GPa to 25.27%/GPa. The ML fitting demonstrates a superior performance compared to linear fitting, with lower mean absolute errors (0.0355–0.1499 GPa vs. 0.1209–0.6955 GPa) and higher R 2 values (99.70–99.98% vs. 93.69–99.79%). The ML fitting method is more suitable for modeling the nonlinear relationships between LIR and pressure than traditional linear fitting. The nonlinear ML fitting approach offers a powerful new way to model the relationships between luminescence features and various physical parameters.
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高影响因子
ORGANIC PROCESS RESEARCH & DEVELOPMENT
·
2026
·
IF 3.5
Shichun Weng,Jinyao Hu,Wei Feng,Xiaoqiao Zhao,Zichao Guo,Liping Chen,Wanghua Chen,Xuedong Gong
3,4-Bis(4-nitrofurazan-3-yl)furoxan (DNTF) is a high-performance hydrogen-free explosive, its conventional route exhibits that the reaction mechanisms remain ambiguous, high thermal risk and the yield is relatively low. This work clarifies the oxidation/sulfonation mechanism, identifies the cause of oxidant loss, and develops an efficient and safe synthesis. First, the key intermediate 3-(4-aminofurazan-3-yl)-4-(nitrofurazan-3-yl)furoxan (ANTF) and the by-product 3-(4-aminofurazan-3-yl)-4-(amino sulfonic acid furazan-3-yl)furoxan (SNFF) were detected by HPLC-MS technique, it was also discovered and verified that SNFF can catalyze the decomposition of Caro’s acid, causing oxidant collapse by catalytically cleaving the O–O bond of peroxymonosulfuric acid, releasing O2. Besides, density functional theory (DFT) calculation results show that oxidation reaction initiates at the amino group distal to the furoxan oxygen, with the second nitro conversion as the highest-energy step. Furthermore, it is proposed that a sulfonation reaction occurs between 3,4-bis(4-aminofurazan-3-yl)furoxan (DATF) and sulfur trioxide, followed by oxidation to generate SNFF. Notably, reaction calorimetry results showed that the oxidation process still carries a significant risk of a thermal runaway, where both excessively quick and slow feeding rates influence the yield of the oxidation process and enhanced reaction temperature and concentration of Caro’s acid indeed increase the oxidation capacity while suppressing sulfonation side reaction. By considering the balance of thermal risk and optimal process parameters, the DNTF yield could reach 75% with >99% purity.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2026
·
IF 2.6
Yiting Geng,Yiwei Wang,Qingyu Meng,Ningbo Huang,Shan Huang,Xiaojun Chen
Conventional antimicrobial strategies relying on multiple antibiotics are becoming increasingly ineffective against drug-resistant strains, highlighting the urgent need for non-antibiotic-dependent therapeutic approaches. In this context, nanotechnology-based multifunctional platforms have emerged as a promising frontier in antimicrobial research due to their resistance-free mechanisms, high controllability, and precise targeting capability. This study presents a multifunctional nanoscale system, Fe₃O₄@polydopamine -Vancomycin @DC 2.4 cell membrane (FPVM), designed for the enrichment, recognition, and synergistic eradication of S. aureus. The system features an Fe 3 O 4 core coated with polydopamine, which enhances both photothermal performance and biocompatibility. Vancomycin is subsequently conjugated to the surface to enable specific recognition and bactericidal activity. Finally, the nanoparticles are encapsulated with stimulated dendritic cell (DC) membranes, further reinforcing the targeting ability toward S. aureus. Under 808 nm near-infrared irradiation (1.2 W cm -2 ), the FPVM platform (400 µg mL -1 ) reduced the survival rate of S. aureus to below 5% within 9 h and disrupted over 90% of pre-formed biofilms, demonstrating high photothermal conversion efficiency. In summary, the FPVM system integrates enhanced targeting and antibacterial functions, offering a versatile blueprint for constructing next-generation antimicrobial platforms.
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高影响因子
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