CERAMICS INTERNATIONAL
·
2015
·
IF 2.605
Konghao Chen,Yixin Hua,Cunying Xu,Qibo Zhang,Cancan Qi,Yafei Jie
TiC/SiC composites were successfully prepared from Ti-enriched slag via an electro-deoxidization process in molten CaCl 2 –NaCl eutectic melt at 700 °C in argon. Electrolysis was conducted at an applied voltage of 3.2 V using a graphite anode and a composite cathode composed of graphite powder and Ti-enriched slag. According to the results, a possible reaction pathway was suggested: firstly the complex Ti-compounds were decomposed into TiO 2 -based simple oxides; then a mass of CaTiO 3 and a spot of CaSiO 3 formed accompanied by the reduction of titanium dioxide to titanium sub-oxide such as TiO, Ti 2 O; finally the graphite powder involved in the formation of SiC, TiC 1− x O x , which were further converted into SiC and TiC by prolonging electrolysis.
研究领域:
材料科学
·
电化学工程
✓ 已验证
产品关联
DOI
高影响因子
Analytical Methods
·
2024
·Vol. 16
·期 5
·695-703
·
IF 2.7
Jiayi Wang,Xiaoya Zhang,Yinghua Yan,Rongrong Xuan
The comprehensive investigation of protein phosphorylation and glycosylation aids in the discovery of novel biomarkers as well as the understanding of the pathophysiology of illness. In this work, a nitrogen/titanium-rich porous organic polymer was developed by copolymerizing carbohydrazide (CH) and 2,3-dihydroxyterephthalaldehyde (2,3-Dha) and modifying with Ti4+ (CH–Dha–Ti4+). The adequate nitrogen contributes to the enrichment of glycopeptides via HILIC, while titanium benefits from capturing phosphopeptides through IMAC. The proposed method exhibits excellent selectivity (1 : 1000, both for glycopeptides and phosphopeptides), LOD (for glycopeptides: 0.05 fmol μL−1, for phosphopeptides: 0.2 fmol), loading capacity (for glycopeptides: 100 mg g−1, for phosphopeptides: 125 mg g−1) and size-exclusion effect (1 : 10 000, both for glycopeptides and phosphopeptides). Furthermore, CH–Dha–Ti4+ was applied to capture glycopeptides and phosphopeptides from human serum; 205 glycopeptides and 45 phosphopeptides were detected in the serum of normal controls; and 294 glycopeptides and 63 phosphopeptides were found in the serum of uremia patients after being analyzed by nano LC-MS/MS. The discovered glycopeptides and phosphopeptides were involved in several molecular biological processes and activities, according to a gene ontology study.
研究领域:
蛋白质组学
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生物化学
·
分析化学
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产品关联
DOI
PubMed
高影响因子
ACS Omega
·
2019
·
IF 2.584
Guanghui Li,Jiyang Xie,Jing Wang,Lei Xia,Yong Li,Wanbiao Hu
Lattice disorder has emerged as a novel strategy to realize visible-light photocatalytic activity, but many existing studies often involved reduction states simultaneously. Photocatalysts based on only the lattice disorder but without the reduction states are still quite lacking and challenging. To this end, we explored a new type of lattice disorder in terms of the surface atom nonstoichiometry strategy in BaTiO3. Well-dispersed tetragonal BaTiO3 nanocrystals with a uniform size (∼20 nm) and cuboid morphology were hydrothermally synthesized through controlling over t-butylamine and oleic acid. HRTEM coupled with structural evolution analysis reveals the existence of a Ti-rich layer on BaTiO3 nanocrystals with surface atom disorder, which gives an overall Ti/Ba ratio of 1.50:1. This is mainly dominated by the oriented adsorption between oleic acid and surface Ba2+ of the nucleus during solution reaction. Such a surface disorder and Ti-rich nonstoichiometry effect could facilitate the enhanced visible-light absorption with a wavelength span of 400–700 nm that enables the superior visible-light photocatalytic property, which is not subject to the reduction states. This work demonstrates a first white material presenting a new type of lattice disorder that would be helpful for a wide range of photocatalyst explorations.
研究领域:
材料科学
·
光催化
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产品关联
DOI
PubMed
高影响因子
ANALYST
·
2023
·Vol. 148
·期 19
·4738-4745
·
IF 4.2
Luyan Meng,Bing Wang,Baichun Wang,Quanshou Feng,Sijia Zhang,Zi Xiong,Shun Zhang,Ting Cai,Chuan-Fan Ding,Yinghua Yan
A Ti4+-functionalized magnetic covalent organic framework material with flexible branched polymers (mCOF@ε-PL@THBA-Ti4+) built via an immobilized metal ion affinity chromatography (IMAC) enrichment strategy was proposed through post-synthesis modification. Hydrophilic ε-poly-L-lysine (ε-PL) rich in amino active groups was first introduced in the fabrication of the phosphopeptide enrichment material to increase the hydrophilicity while providing more functional modification pathways of the material. 2,3,4-Trihydroxy-benzaldehyde (THBA) provides abundant binding sites for the immobilization of numerous Ti4+, which is advantageous for the subsequent efficient phosphopeptide enrichment. The magnetic nanocomposite exhibited outstanding performance of phosphopeptide enrichment with good selectivity (1 : 5000), a low detection limit (2 fmol), and relatively high loading capacity (66.7 mg g−1). What's more, after treatment with mCOF@ε-PL@THBA-Ti4+, 16 endogenous phosphopeptides from fresh saliva of healthy people were recognized by MALDI-TOF MS, and 50 phosphopeptides belonging to 35 phosphoproteins from the serum of uremia patients were detected by nano-LC-MS/MS. Proteomics data analysis for the differential protein selection between uremia and normal controls was conducted using R software, and four down-regulated and three up-regulated proteins were obtained. The results suggested that the prepared material has potential applications in biomarker discovery.
研究领域:
材料科学
·
分析化学
·
生物医学工程
·
蛋白质组学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）