Journal of Materials Chemistry C
·
2021
·Vol. 9
·期 16
·5469-5477
·
IF 7.393
Hao Cai,Shengqiang Liu,Zhen Song,Quanlin Liu
The practical application of near-infrared (NIR) phosphors is hindered due to their limited light emitting region and narrow bandwidth. Here, we report a series of Cr3+-doped olivine phosphors, (Mg1−xLix)(Mg1−xScx)GeO4:Cr3+, with tunable luminescence from NIR-I to NIR II based on crystallographic site engineering. By using a [Li+–Sc3+] unit substituting for a [Mg2+–Mg2+] unit, the NIR luminescence can be largely tuned from 940 nm to 1110 nm, and the corresponding FWHM can be modified from 236 to ∼300 nm. The internal quantum efficiency (IQE) and external quantum efficiency (EQE) of Mg2GeO4:1% Cr3+ were measured to be 48.19% and 16.38%, respectively. The photoluminescence of the phosphors matches well with the absorption of several functional groups. By measuring the NIR absorption of different liquids illuminated by NIR light from our phosphors, qualitative and quantitative analysis can be realized. These results suggest that the super-broad NIR luminescence of (Mg1−xLix)(Mg1−xScx)GeO4:Cr3+ has potential applications as light sources for nondestructive food analysis.
研究领域:
材料科学
·
光学
·
分析化学
✓ 已验证
DOI
高影响因子
ANALYTICAL CHEMISTRY
·
2019
·
IF 6.35
Qinlei Liu,Yao Lin,Jing Xiong,Li Wu,Xiandeng Hou,Kailai Xu,Chengbin Zheng
A disposable, instrument-free, height readout paper-based analytical device (HR-PAD) based on a paper strip inkjet-printed with CdTe quantum dots (QDs) was developed for the sensitive speciation analysis of Ag+ and silver nanoparticles (AgNPs). When the paper strip is immersed into a sample solution, capillary action draws it through the surface and any Ag+ in the solution quenches the fluorescence of CdTe QDs via a cation exchange reaction between Ag+ and the CdTe QDs, with the height of the quenched band being proportional to the concentration of Ag+. In contrast, fluorescence quenching cannot be observed when only AgNPs are present in solution. Thus, the concentration of AgNPs can be obtained by subtracting the Ag+ content from the total silver determined by the HR-PAD after digestion with HNO3. Under optimized conditions, the methodology provides high selectivity, sensitivity, and accuracy for the detection of Ag+ or AgNPs in various samples, even at concentrations as low as 0.05 mg L–1. Precisions of 4.5% and 2.2% RSDs were achieved at concentrations of 1 mg L–1 and 7 mg L–1 of Ag+, respectively. Compared to conventional methods, this approach is inexpensive and user-friendly and eliminates the need for expensive and sophisticated detection instruments. The practicality of the method was demonstrated via the speciation analysis of AgNPs and Ag+ in river water and 12 commercial products with satisfactory results.
研究领域:
分析化学
·
环境科学
·
纳米技术
✓ 已验证
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.6
Wanqing Zhang,Xiaodong Su,Yaxin Lv,Xuelin Zhao,Zhou Zhang,Yuntong Du,Mengyu Fan,Heshan Zhao,Matthias Rögner,Felipe Conzuelo,Weining Zhao,Mei Li,Fangyuan Zhao
Developing efficient semiartificial photosynthetic systems is crucial for sustainable solar energy conversion. Photosystem I (PSI) is an ideal photoactive component for such systems due to its ability to perform light-induced charge separation with near-perfect quantum efficiency. We report a high-performance PSI-based biophotocathode by immobilizing PSI in a poly(vinyl)imidazole-Os(bispyridine)2Cl (POs) redox polymer hydrogel within a translucent, three-dimensional (3D) porous indium tin oxide (ITO) scaffold. This hierarchical architecture synergistically enhances the PSI/redox hydrogel loading, promotes light harvesting, and facilitates rapid mediated electron transfer (MET), leading to record-breaking steady-state photocurrent densities of 4068 μA cm–2. An outstanding incident photon-to-current conversion efficiency (IPCE) of up to 61% is observed at a light intensity of 0.14 mW cm–2. To create a self-sustaining system, this advanced photocathode was integrated with a bioanode featuring galactose oxidase that efficiently oxidizes glycerol, a low-cost byproduct of the biodiesel industry. The resulting two-compartment photoelectrochemical (PEC) cell operates as a biophotovoltaic cell, exhibiting an open-circuit voltage of 0.42 V and a maximum power density of 18.5 μW cm–2. This work not only presents a significant advancement in the performance of PSI-based biophotocathodes but also demonstrates a viable pathway for semiartificial photosynthetic systems that simultaneously convert solar energy and valorize a waste stream chemical.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL IMMUNOPHARMACOLOGY
·
2026
·
IF 5.6
Yaqi Pu,Tianxin Li,Zihe Zhao,Qian Xu,Yi Jin,Huan Dou,Zhao Liu
Background Abdominal aortic aneurysm (AAA) is a prevalent and potentially fatal cardiovascular disease, yet the precise therapeutic mechanism of the bioactive compound Senkyunolide I (SEI) against AAA is not fully understood. Methods Utilizing an elastase/BAPN-induced AAA mouse model, this study employed integrated network pharmacology, proteomics (LiP-MS), and biophysical validation (molecular docking, MST) to identify and confirm PARP-1 as a direct target of SEI. The therapeutic effect of SEI was evaluated in vivo by monitoring aortic dilation and histopathology, and its inhibitory effect on TNF-α-induced macrophage migration was assessed in vitro . The functional role of the SEI-PARP-1 axis was further verified using PARP-1 inhibitors and macrophage-targeted PARP-1 overexpression. Results In the elastase/BAPN-induced AAA model, which mimics human AAA progression and rupture risk, SEI treatment attenuated disease progression by reducing aortic dilation, collagen deposition, and elastin degradation. SEI directly bound to and downregulated PARP-1 expression in both AAA tissues and large peritoneal macrophages (LPMs). It dose-dependently suppressed TNF-α-induced LPMs migration in vitro and restored the AAA-induced reduction in peritoneal LPMs proportion in vivo , an effect also seen with pharmacological PARP-1 inhibition. In contrast, macrophage-specific PARP-1 overexpression abolished SEI's protection and promoted LPMs migration into aortic lesions. Conclusion This study demonstrates that SEI attenuates AAA progression by targeting PARP-1 and inhibiting the migration of LPMs from the peritoneal cavity to the aortic lesion. These findings elucidate a novel pharmacological mechanism of SEI and underscore PARP-1 as a promising therapeutic target for AAA.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF STRUCTURAL CHEMISTRY
·
2026
·Vol. 67
·期 1
·65-74
·
IF 1.5
Chen Y. -X.,Qiu B.,Xu Y. -J.,Yan W. -B.,Liu S. -J.,Qiu X. -Y.
New cobalt(II) and copper(I) complexes, [CoCl 2 (L 1 ) 2 ] ( 1 ) and [CuClL 2 (Ph 3 P) 2 ]·CH 3 CN ( 2 ), where L 1 = 1-(4-bromobenzylidene)thiosemicarbazide, L 2 = 1-(2,4-dichlorobenzylidene)thiosemicarbazide, PPh 3 =
= triphenylphosphine, were synthesized and characterized by elemental analysis and physico-chemical method, as well as single crystal X-ray diffraction. The complexes were also tested for their urease inhibitory properties. The cobalt complex has strong activity ( IC 50 = 5.7 μM). Enzymatic kinetics research suggested that the cobalt complex is a non-competitive urease inhibitor.
✓ 已验证
DOI
高影响因子
AGING CELL
·
2026
·Vol. 25
·期 2
·e70378
·
IF 7.1
Meiling Wang,Yumin Chang,Aojie He,Jing Yang,Ang Li,Hongqin Wang,Kah-Leong Lim,Xing Guo,Chengwu Zhang,Li Lu
Age-related memory decline is a hallmark of brain aging and a primary risk factor for neurodegenerative disorders. Microglia play a crucial role in preserving memory function by maintaining brain homeostasis through phagocytosis, yet the specific mechanisms governing this protective function remain elusive. In the present study, we identified a population of Secreted Phosphoprotein 1 (Spp1)-positive microglia in both aged mouse and human brains. To investigate the role of microglial Spp1 in aging, we generated microglia-specific Spp1 knockout (Spp1-cKO) mice. We demonstrate that Spp1 deficiency selectively precipitates memory deficits in aged mice, without affecting memory function in young mice, indicating an age-dependent reliance on Spp1 signaling. Microglial phagocytic capacity positively correlates with Spp1 levels and is diminished by Spp1 deficiency. Mechanistically, Spp1 deficiency leads to the downregulation of the AKT/mitochondrial complex I pathway, thereby compromising microglial oxidative phosphorylation and function. Notably, microglia-specific overexpression of Spp1 partially ameliorates the age-related phenotypes induced by Spp1 deficiency. In conclusion, this study is the first to reveal the crucial role of microglial Spp1 in brain aging and to uncover its underlying mechanism, providing novel insights into age-related memory decline.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD HYDROCOLLOIDS
·
2026
·
IF 12.4
Jiefen Cui,Xiaoxiao Zhang,Dan Liu,Jirong Wang,Yongkai Yuan,Jinkai Zheng
The relationship between pectin side chains and fermentability is crucial for understanding precision nutrition. In this study, α-L-arabinofuranosidase and β-galactosidase were used to remove arabinose and galactose side chains of citrus pectin. Effects of RG-I side chains on structural characteristics and in vitro fermentation property of pectin were investigated. The removal of arabinose and galactose side chains led to a decrease in molecular weight and branching degree of pectin, which in turn resulted in a loose spatial conformation. Based on correlation analysis and carbohydrate-active enzymes annotation, we concluded that the presence of arabinose in citrus pectin promoted the production of propionate and had no promoting effect on the proliferation of pathogenic bacteria of Escherichia and Klebsiella . The removal of the galactose side chain promoted proliferation of potentially beneficial bacteria ( Bifidobacterium , Faecalibacterium , Veillonella , and Parabacteroides ). We further found that arabinose produced propionate mainly via the succinate pathway and acrylate pathway, while galactose generated butyrate by activating phosphate butyryltransferase and butyrate kinase. Our results provide new insights into structure-function relationship between arabinose and galactose side chains and fermentability of pectin, while also offering a scientific reference for targeted design of pectin prebiotics with precise functionalities.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CLUSTER SCIENCE
·
2021
·Vol. 33
·期 2
·503-508
·
IF 3.061
Tong Hua,Liu Wei
A highly stable three-dimensional (3D) silver chloride cluster based coordination polymer (CP) with diphosphines ligand with the formula of [Ag 4 Cl 4 ( L ) 2 ] n ( 1 ) ( L = 1,3-bis(diphenylphosphino)propane, bdpp) has been prepared at room temperature. 1 was examined for the removal of Rhodamine B in aqueous solution, exhibiting potential for the removal of contaminants from wastewater.
研究领域:
材料化学
·
环境科学
✓ 已验证
DOI
高影响因子
Journal of Energy Chemistry
·
2023
·
IF 13.1
Qi Deng,Fangzhong Liu,Xiongwei Wu,Changzhu Li,Weibin Zhou,Bei Long
The development of aqueous battery with dual mechanisms is now arousing more and more interest. The dual mechanisms of Zn 2+ (de)intercalation and I − /I 2 redox bring unexpected effects. Herein, differing from previous studies using ZnI 2 additive, this work designs an aqueous BiI 3 -Zn battery with self-supplied I − . Ex situ tests reveal the conversion of BiI 3 into Bi (discharge) and BiOI (charge) at the 1st cycle and the dissolved I − in electrolyte. The active I − species enhances the specific capacity and discharge medium voltage of electrode as well as improves the generation of Zn dendrite and by-product. Furthermore, the porous hard carbon is introduced to enhance the electronic/ionic conductivity and adsorb iodine species, proven by experimental and theoretical studies. Accordingly, the well-designed BiI 3 -Zn battery delivers a high reversible capacity of 182 mA h g −1 at 0.2 A g −1 , an excellent rate capability with 88 mA h g −1 at 10 A g −1 , and an impressive cyclability with 63% capacity retention over 20 K cycles at 10 A g −1 . An excellent electrochemical performance is obtained even at a high mass loading of 6 mg cm −2 . Moreover, a flexible quasi-solid-state BiI 3 -Zn battery exhibits satisfactory battery performances. This work provides a new idea for designing high-performance aqueous battery with dual mechanisms.
研究领域:
电化学
·
能源材料
·
储能技术
·
无机化学
·
纳米材料
✓ 已验证
DOI
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2024
·
IF 4.2
Yonghua Wang,Ruilin Wang,Yucheng Hu,Lin Zheng,Ganhua Fu,Gang Wang,Yufeng Zhou,Qiaomu Xie,Jingong Pan,Shou Peng
In recent years, the study of Cu (Ӏ) precursors in high-performance CdTe thin-film solar cell devices has received increasing attention. However, few studies have been reported on nanoscale Cu (I) precursors in large-area CdTe devices (≥1 cm 2 ). Here, three different Cu (Ӏ) nano precursors have been rapidly prepared by solution method (CuCl ethanol solution, CuI acetonitrile solution, and CuSCN aqueous ammonia solution) and their effects on the performance of commercial large-area CdTe thin-film solar cells have been investigated. The results show that the distribution amount and uniformity of the nano precursor particles on the CdTe back surface have a large impact on the device performance. The CuCl nanoparticles are more uniformly distributed and the device performance is more excellent. CuI nanoparticles easily formed clusters at grain boundaries. Denser distribution of CuSCN nanoparticles . The thermal diffusion conditions (temperature, time and precursor concentration) have a significant effect on the device performance, but the most reasonable thermal diffusion conditions tend to be the same for all devices. This suggests that the thermal diffusion conditions are determined by the nature of the CdTe absorber layer itself and are not interfered by different nano precursors.
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2024
·
IF 4.3
Jingyu Guo,Xiangtong Zhan,Jiating Lan,Xin Liu,Shuang Zhao,Xi Xu,Li-Ming Wu,Ling Chen
Birefringent crystals are the key components of functional optics, contributing significantly to scientific and technological advancements. To enhance birefringence, the presence of stereochemically active lone pairs offers a unique opportunity. In fact, strengthening the stereochemical activity and aligning uniformly lone pairs face tough challenges. Herein, an anisotropic layered crystal, Sb4O5I2, is discovered to exhibit enhanced birefringence. The influence of crystal symmetry on the birefringence of Sb4O5X2 (X = Cl, Br, or I) is found to be minor. Instead, the asymmetric nature of ABUCBs (i.e., cis-X3[SbO3]6– and cis-X3[SbO4]8–) plays a crucial role in enhancing the optical anisotropy. And the orientation of these ABUCBs is equally important. We demonstrate that by adjusting the Sb/I ratio from 5:1 to 2:1, all of the intralayer Sb atoms in Sb5O7I-P63 are forced onto the surface position. This structural adjustment leads to strengthened ionic bonding interactions, enhanced activity of the lone pairs, and uniform alignments of the ABUCBs in Sb4O5I2. Consequently, this results in a 6-fold increase in birefringence.
研究领域:
材料科学
·
光学
·
无机化学
·
晶体工程
✓ 已验证
DOI
高影响因子
JOURNAL OF COORDINATION CHEMISTRY
·
2016
·
IF 1.756
Lei Qi,Qian Li,Xiao Hong,Li Liu,Xin-Xin Zhong,Qiao Chen,Fa-Bao Li,Qian Liu,Hai-Mei Qin,Wai-Yeung Wong
Highly emissive three-coordinate copper halide complexes with a bidentate phosphine ligand have attracted attention. Here, a series of three-coordinate mono- and dinuclear copper halide complexes, [CuI(dpbp)2] (1) and [CuX(dpbp)]2 (dpbp = 2-(diphenylphosphino)biphenyl, X = Br (2), Cl (3)), were synthesized, and their molecular structures and photophysical properties were investigated. In the solid state, these complexes exhibit green photoluminescence with microsecond lifetimes (λmax = 515–538 nm; τ = 11.8–19.1 μs) at 298 K. The emission of the complexes originates from the (σ + X) → π* transition. All three complexes displayed good thermal stability.
研究领域:
无机化学
·
材料科学
·
光物理
·
配位化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）