SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2021
·
IF 4.098
Hanyue Xiang,Tianran Wang,Sixian Tang,Yujie Wang,Nao Xiao
A novel hydrazone-based fluorescent probe ( E )-3-((2-(benzo[ d ]thiazol-2-yl)hydrazono)methyl)-4 H -chromen-4-one ( BTC ) has been rationally designed and synthesized. BTC can subsequently detect Ga 3+ and PPi ions through the absorption and emission off–on-off response with high specificity. Importantly, fluorescent probe BTC can well discriminate Ga 3+ from Al 3+ and In 3+ . The association constant (K) was calculated as 2.06 × 10 4 M −1 , and the limit of detection (LOD) was calculated as 4.88 × 10 -2 μM. Competitive binding studies also illustrated good results of the probe BTC towards Ga 3+ . Job's plot and HRMS results substantiated the 1:1 stoichiometry between BTC and Ga 3+ ion. The interaction binding mode of BTC with Ga 3+ was proposed by HRMS, 1 H NMR spectral titration, UV–vis absorption and fluorescence spectral measurements. The combination of the restraint of the photo-induced electron transfer (PET) process and the chelation enhanced fluorescence (CHEF) process is responsible for the fluorescence enhancement of this probe. The in situ chelated BTC -Ga 3+ could further monitor pyrophosphate ion (PPi) by demetallization process with quenching fluorescence emission. Additionally, the BTC and BTC -Ga 3+ showed good cell permeability and could detect Ga 3+ and PPi ions in onion inner epidermal cells, respectively.
研究领域:
分析化学
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生物化学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Biomaterials Science
·
2025
·
IF 5.7
Ying Qi,Jing Zheng,Qian Zhang,Yage Sun,Jiaxing Shao,Hongying Wang,Rong Yang,Ziyang Xu,Chunyan Cui,Wenguang Liu
Chronic periodontitis is a long-standing thorny issue for oral health, characterized primarily by the excessive production and accumulation of reactive oxygen species, pathogenic bacterial infection, and the continuous loss of alveolar bone. In the present study, a poly(lipoic acid) (PolyLA) coenzyme-based tissue adhesive (PolyLA/Arg/Ga) was developed for the treatment of periodontitis. It functions by combining the nonantibiotic antimicrobial ion gallium ion (Ga3+ ) to resist pathogenic bacteria and promote osteogenesis; while the basic arginine not only stabilizes PolyLA at room temperature by forming salt bridge hydrogen bonds with its carboxyl groups but also serves as a cofactor, effectively regulating the release behavior of LA-based active molecules and Ga3+ by partially deprotonating the carboxyl groups on PolyLA. This, in turn, imparts significant antioxidant and antimicrobial properties to the adhesive. Thanks to the rich adhesive carboxyl groups on the surface of the adhesive and the structural stability of the hydrophobic PolyLA skeleton in a wet environment, The PolyLA/Arg/Ga exhibits long-lasting wet-resistant adhesion properties to biological tissues. Moreover, in vitro cell experiments and in vivo subcutaneous implantation studies demonstrate that the PolyLA/Arg/Ga adhesive has better cytocompatibility and histocompatibility. The PolyLA/Arg/Ga is explored as a tissue adhesive to treat a periodontitis model in rats.The results demonstrate that the PolyLA/Arg/Ga adhesive more effectively inhibited alveolar bone resorption and promoted periodontal tissue regeneration within 4 weeks compared to commercial patch. Thus, the simply designed yet multifunctional PolyLA/Arg/Ga bioadhesive offers an innovative approach for periodontitis management.
研究领域:
生物材料
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生物医学工程
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牙科医学
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组织工程
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传染病学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2021
·
IF 6.707
Jie Li,Zhongteng Wang,Juan Yang,Xinming Xia,Ruobing Yi,Jie Jiang,Wei Liu,Junlang Chen,Liang Chen,Jing Xu
Fluorescence switch based on graphene quantum dots (GQDs) is of great interest in the areas of environment, medicine and data security because of their promising applications. However, the known ternary “on-off-on” fluorescent switches of GQDs are very few due to the limited effective fluorescence recovery strategies. In this work, we proposed a new cationic control strategy and designed a novel “on-off-on” fluorescence switch, i.e., GQDs-Cu 2+ /Fe 3+ /Cr 3+ -Al 3+ /Ga 3+ /In 3+ , where the fluorescence of synthesized GQDs was quenched by Fe 3+ , Cu 2+ and Cr 3+ , and subsequently was recovered by three kinds of Group IIIA ions Al 3+ , Ga 3+ and In 3+ . The corresponding recovery degree can reach up to 0.81 compared with the pristine GQDs. The XPS results combining with quantum chemical calculations illustrated that the change of π-conjugated region caused by cations dominated the quenching and recovery of fluorescence. Furthermore, based on this “on-off-on” mechanism, a kind of anti-counterfeiting stealth ink for information encryption was also suggested. This work is the first report that Group IIIA ions Al 3+ , Ga 3+ and In 3+ can be used for fluorescence recovery, and the cationic control strategy proposed here provides a new and promising strategy for the development of “on-off-on” fluorescent switch in future studies.
研究领域:
环境科学
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医学
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材料科学
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 27
·2214497
·
IF 19
Zhichao Liu,Xue Yu,Qingpeng Peng,Xiaodie Zhu,Jianqiang Xiao,Jiangtao Xu,Shouxiang Jiang,Jianbei Qiu,Xuhui Xu
Mechanoluminescence (ML) materials with long-wavelength emission bands are essential for future in vivo bioimaging, non-destructive testing of solids, etc. The lack of a defined mechanism, however, prevents the application of near infrared ML materials above 650 nm in several new fields. Here, the addition of Ga 3+ ions to Y 3 Al 5 O 12 : Cr 3+ manipulates matrix microstructure evolution, boosting near-infrared (NIR) zero-phonon line (ZPL) stress optical output of the Cr 3+ ion at 688 nm. The key factor changing the crystal field intensity D q /B due to the addition of Ga 3+ ions is what causes the luminescence amplification of ZPL. The ML fabricated by composite polydimethylsiloxane and Y 3 Al 4 GaO 12 : Cr 3+ (YAGG: Cr 3+ ) may penetrate chicken feet epidermal tissue and 4 mm pork tissue thanks to the strong NIR ZPL emission of YAGG: Cr 3+ phosphor. This discovery of enhancing near-infrared ZPL intensity by solid solution provides us with a new technique for optimizing NIR ML materials, as well as a new prospect for NIR ML materials in biological applications.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Cotton Research
·
2024
·Vol. 7
·期 1
·1-14
·
IF 3.1
Wang Wenhao,Song Xianpeng,Wang Dan,Ma Yajie,Shan Yongpan,Ren Xiangliang,Hu Hongyan,Wu Changcai,Yang Jun,Ma Yan
Background Plant hormones profoundly influence cotton growth, development, and responses to various stresses. Therefore, there is a pressing need for an efficient assay to quantify these hormones in cotton. In this groundbreaking study, we have established QuEChERS-HPLC‒MS/MS method, for the simultaneous detection of multiple plant hormones in cotton leaves, allowing the analysis and quantification of five key plant hormones. Results Sample extraction and purification employed 0.1% acetic acid in methanol and C18 for optimal recovery of plant hormones. The method applied to cotton demonstrated excellent linearity across a concentration range of 0.05–1 mg·L −1 , with linear regression coefficients exceeding 0.99. The limits of quantification (LOQs) were 20 μg·kg −1 for GA 3 and 5 μg·kg −1 for the other four plant hormones. Recovery rates for the five plant hormones matrix spiked at levels of 5, 10, 100, and 1000 μg·kg −1 were in the range of 79.07% to 98.97%, with intraday relative standard deviations (RSDs) ranging from 2.11% to 8.47%. The method was successfully employed to analyze and quantify the five analytes in cotton leaves treated with plant growth regulators. Conclusion The study demonstrates that the method is well-suited for the determination of five plant hormones in cotton. It exhibits excellent selectivity and sensitivity in detecting field samples, thus serving as a robust tool for in-depth research into cotton physiology.
研究领域:
农业化学
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植物生理学
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分析化学
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Yuping Hou,Ning Wang,Xiaofei Wu,Guibin Hu,Guihua Li,Shuai Cheng,Zhenyu He,Yusong Du,Jingtai Zhao
Manganese-doped calcium germanate was used as the model host to optimize dual-mode emission by synergistic regulation at the B site. A series of Ga 3+ -doped samples was first prepared to determine the composition with the strongest mechanoluminescence (ML) response. A small amount of Si 4+ was then introduced to recover the photoluminescence (PL) performance. The Ga 3+ /Si 4+ co-doping strategy combines defect construction with lattice rigidification. Heterovalent Ga 3+ substitution creates an oxygen-vacancy trap network, which preserves the energy-storage capability required for ML. Isovalent Si 4+ incorporation strengthens the lattice framework through highly stable Si-O bonds, thereby suppressing non-radiative relaxation of Mn 2+ and compensating for the defect-induced energy loss. Thermoluminescence (TL), Raman spectroscopy, and optical characterizations show that B-site regulation modifies both trap distribution and lattice rigidity. As a result, PL and ML are simultaneously improved. This work provides a structural-regulation strategy for designing multimodal luminescent materials.
✓ 已验证
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2015
·
IF 2.353
Liqiang Yan,Yan Zhou,Wenqi Du,Zhineng Kong,Zhengjian Qi
The probe CT was synthesized and investigated as a novel label-free chemosensor for Ga 3 + detection in water. Probe CT showed remarkable selectivity and sensitivity for Ga 3 + in Tris–HCl aqueous buffer solution (pH 7.0). The chemosensor responded rapidly to Ga 3 + with a 1:1 stoichiometry . Meanwhile, the unapparent changes of fluorescence lifetime decays suggest the turn-on process of probe CT by Ga 3 + which appears to be a static mechanism.
研究领域:
分析化学
·
环境科学
·
传感器与生物传感器
·
无机化学
✓ 已验证
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2023
·
IF 5.4
Yu Zhang,Kai Li,Xuelian Zhou,Kaixuan Wang,Ze Wang,Sur Lig,Kefu Chao,Fengqi Zhao
Cr 3+ -doped near-infrared phosphors have recently attracted a wide attention. Here, NIR Ca 1- y Sr y Al 12- x Ga x O 19 :0.12Cr 3+ phosphors are obtained by a high-temperature solid-phase method. First, a series of CaAl 7.88 Ga 4 O 19 :0.12Cr 3+ samples is studied and shows that the crystal field strength can be tuned by cation substitutions, until achieving a sharp emission at 692 nm and a broad emission at 780 nm under a 400 nm excitation, and an internal quantum yield of 90.73%. A further substitution by an appropriate amount of Sr 2+ is suggested to be beneficial to increase the rigidity of the crystal structure by Debye temperature calculations. Experimentally, it is observed that Sr 2+ for Ca 2+ substitutions did not affect the luminescence wavelength and resulted in a significant increase of the thermal stability. When 0.7 Sr 2+ substitute Ca 2+ , the thermal stability at 450 K increased by 28% compared to the samples without Sr 2+ .
研究领域:
材料科学
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无机化学
·
固体物理
·
光学材料
·
功能材料
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED PHYSICS
·
2021
·Vol. 130
·期 14
·
IF 2.546
Peng Xiao-Yan,Tang Yu-Cheng,Zhang Bo-Ping,Zhu Li-Feng,Xun Bo-Wei,Yu Jing-Ru
BiFeO 3 -BaTiO 3 is a promising high-temperature lead-free piezo-ceramics due to its high Curie temperature ( T C > 500 °C) and excellent piezoelectric properties. However, a high leakage current was often detected in this system, which severely affects its applications. In this work, the 0.7BiFe (1− x ) Ga x O 3 -0.3BaTiO 3 (BFGa x -BT, 0.00 ≤ x ≤ 0.10) system was designed to reveal the reason of leakage-current density decreased by their leakage mechanism. Because of the suppression of generation of Fe 2+ and oxygen vacancy ( V O ∙ ∙ ), the leakage mechanism from space charge limited conduction mechanism found in Ga-free BF-BT ceramics turns into Ohmic conduction and Schottky emission mechanism as Fe 3+ was replaced with Ga 3+ . A good combination of piezoelectric properties ( d 33 = 174 pC N −1 and k p = 29%) and high Curie temperature ( T C = 497 °C) was achieved in the BFGa0.06-BT ceramic owning the lowest leakage-current density. This work will provide the clues for preparing the high insulation and high piezoelectric performance BF-BT-based ceramics by suppressing the valence change of Fe 3+ and V O ∙ ∙ appearance.
研究领域:
材料科学
·
无机化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2025
·
IF 3.6
Mengke Bai,Wenya Lai,Fei Zhou,Hangqing Xie,Jing Xu,Jiadi Lian,Shiqing Xu
Triplet excitons serve as a critical pathway for harvesting energy released during X-ray interactions with heavy elements; however, strategies to enhance their activation efficiency remain limited. Herein, we report a novel organic doping approach to optimize the triplet radioluminescence (RL) of Tb 3+ /Ga 3+ metallacrown (Tb-1) scintillators. By introducing 1,2,4,5-benzenetetracarboxylic acid (PMA) as a ligand dopant, a new scintillation crystal, Tb-1-PMA, is synthesized. Compared to the Tb-1 crystal, Tb-1-PMA exhibits a significant reduction in metal content while maintaining structural integrity. When excited by ultraviolet light or X-rays, Tb-1-PMA crystal emit bright green light, and the photoluminescence quantum yield (PLQY) is increased from 36.8 % to 45.3 %. The RL intensity of Tb-1-PMA surpasses that of Tb-1 by 50 %, achieving a relative light yield of 17,000 photons MeV −1 , accompanied by nearly eliminated afterglow. These enhancements stem from improved energy-level alignment between organic triplet excitons and Tb 3+ in Tb-1-PMA, enabling efficient energy transfer. The RL intensity demonstrates a linear response to X-ray dose rates, with a detection limit of 0.044 μGy s −1 , approximately 123-fold lower than conventional diagnostic doses. This work provides a cost-effective and scalable strategy for designing organic-doped high-performance triplet-emitting scintillators.
研究领域:
材料科学
·
辐射探测
·
发光材料
·
无机化学
·
核仪器
✓ 已验证
产品关联
DOI
高影响因子
PLANT PHYSIOLOGY AND BIOCHEMISTRY
·
2024
·
IF 6.1
Huanhuan Guo,Jinjin Li,Yong Liu,Eduardo Fernández-Pascual
Lipid metabolism may play a critical role in fueling seed germination, but the knowledge of lipid metabolism during germination is still ambiguous. Here, we hypothesize that gibberellic acid (GA) promotes germination by means of enhancing lipid mobilization in Chinese pistachio ( Pistacia chinensis Bunge), a species belonging to Anacardiaceae with high oil content in its seeds. A multi-omics approach has been applied to measure lipid mobilization during seed germination, and to identify the key regulators involved in GA-mediated lipid metabolism. The results indicated that GA contents increased, while IAA, ABA and JA contents decreased during seed germination. GA 3 increased significantly in the two germination stages (i.e. imbibition and radicle protrusion), and it was more abundant than GA 1 and GA 4 . In addition, the relative content of most lipids decreased during germination, and the differentially changed metabolites were significantly enriched in lipid metabolic pathways based on KEGG analysis. WGCNA indicated that GA 3 was correlated with more genes in lipid metabolic pathways. Transcriptomic analysis further revealed that differentially expressed genes (DEGs) related to fatty acid biosynthesis, glycerolipid metabolism, glycerophospholipid metabolism and starch and sucrose metabolism were upregulated under GA 3 application, such as the acetyl-CoA carboxylase biotin carboxyl carrier protein (ACCB), fatty acyl-ACP thioesterase B (FATB), diacylglycerol acyltransferase (DGAT) and DEFECTIVE IN ANTHER DEHISCENCE 1 (DAD1). Therefore, our study supports the hypothesis that GA promotes seed germination in P. chinensis by enhancing lipid mobilization. This study proposes a novel mechanism of lipid responses to exogenous GA, which contributes to a deep understanding of germination of oleaginous seeds.
研究领域:
植物生理学
·
分子生物学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
·
2013
·
IF 2.297
Qing Song,Qiu-Yue Kang,Sa-Ying Li,Qiu-Yan Yu,Zhi-Hong Liu
Three isotypic polyborate cluster compounds for Na 5 [AlB 24 O 34 (OH) 12 ]·5.5H 2 O, Na 5 [CrB 24 O 34 (OH) 12 ]·5H 2 O and Na 5 [GaB 24 O 34 (OH) 12 ]·3H 2 O have been synthesized and characterized by EDS, XRD, FT-IR, TG techniques and chemical analysis. The molar enthalpies of solution of Na 5 [AlB 24 O 34 (OH) 12 ]·5.5H 2 O (s) and Na 5 [CrB 24 O 34 (OH) 12 ]·5H 2 O (s) in 1 mol · dm −3 HCl (aq) were measured to be (58.27 ± 0.15) kJ · mol −1 and (130.99 ± 0.33) kJ · mol −1 , respectively. The molar enthalpies of solution of AlCl 3 ·6H 2 O (s) and CrCl 3 ·6H 2 O (s) in (HCl + H 3 BO 3 + NaCl) (aq) were also measured, respectively. With the incorporation of the previously determined enthalpy of solution of H 3 BO 3 (s) in 1 mol · dm −3 HCl (aq), together with the standard molar enthalpies of formation for AlCl 3 ·6H 2 O (s)/CrCl 3 ·6H 2 O (s), NaCl(s), H 3 BO 3 (s), HCl (aq) and H 2 O (l), the standard molar enthalpies of formation of −(21316.0 ± 19.3) kJ · mol −1 for Na 5 [CrB 24 O 34 (OH) 12 ]·5H 2 O (s) and −(21669.7 ± 19.3) kJ · mol −1 for Na 5 [AlB 24 O 34 (OH) 12 ]·5.5H 2 O (s) at T = 298.15 K were obtained on the basis of the appropriate thermochemical cycles. The molar enthalpy of formation of Na 5 [GaB 24 O 34 (OH) 12 )]·3H 2 O was estimated as −20662.9 kJ · mol −1 by using a group contribution method on the basis of these measured results.
研究领域:
无机化学
·
物理化学
✓ 已验证
DOI
高影响因子
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