JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Gangyong Li,Siping Li,Zhi Li,Chen Li,Zhaodi Wang,Huan Li,Rui Chen,Miao Zhou,Bao Zhang,Zhaohui Hou
Rechargeable aluminum batteries (RABs) are promising alternatives to lithium-ion batteries in large-scale energy storage applications owing to the abundance of their raw materials and high safety. However, achieving high energy density and long cycling life simultaneously holds great challenges for RABs, especially for high capacity transition metal selenide (TMS)-based positive materials suffering from structural collapse and dissolution in acidic ionic liquid electrolyte. Herein, Se-doped carbon encapsulated Cu 2 Se with yolk-shell structure (YS/Se-C@Cu 2 Se) is rationally constructed to address such issues. Electrochemical and spectroscopic analyses as well as density functional theory calculations show that the highly conductive Se–C shell enhances the electrochemical reaction kinetics of the electrode and provides strong adsorption for the soluble Cu and Se species. Benefiting from these merits, the optimal YS/Se-C@Cu 2 Se cathode manifests a high specific capacity of 1024.2 mAh/g at 0.2 A/g, a superior rate capability of 240.5 mAh/g at 3.2 A/g, and a long-term cycling stability over 2500 cycles. This work offers a feasible approach to the design and construction of low-cost and efficient TMS-based positive materials for realizing practically usable RABs.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENERGY & FUELS
·
2024
·
IF 5.2
Xinye Li,Lingxing Zeng,Wenbin Lai,Zewei Lei,Mingyang Ge,Chaobin Fang,Bo Weng,Qinghua Chen,Mingdeng Wei,Qingrong Qian
Sodium/potassium-ion batteries (SIBs/PIBs) as alternatives complement of Li-ion batteries (LIBs) exhibit cost-effective, appropriate redox potential, and high energy density. Unfortunately, the large volumetric expansion and severe pulverization toward anode materials of SIBs/PIBs during the charge/discharge progress limit their practical implementations. In this work, selenium doped carbon nanofibers integrated with bismuth–antimony alloy nanocrystals (denoted as BiSb-Se/CNFs) have been fabricated as anode materials for SIBs/PIBs. The hierarchical carbon nanofiber frameworks in BiSb-Se/CNFs composite not only provide sufficient space to accommodate Na/K ions, ensuring high structural stability, but also facilitate rapid electron and ion transport, enhancing the redox reaction kinetic. As expected, the BiSb-Se/CNFs electrode demonstrates a superior sodium storage capacity of 370 mAh g–1 at current densities of 0.5 A g–1 after 650 cycles, withstanding a long-term cycling of 2000 cycles and showing a remarkable capacity up to 309 mAh g–1 at 2 A g–1. Moreover, an impressive potassium storage performance with a superior capacity and outstanding reversible stability can be observed over the BiSb-Se/CNFs electrode. This work elucidates the design of alloy-type electrodes with a high lifespan in both SIBs and PIBs, which provides inspiration for practical multiapplication scenarios for anodes.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
DOI
高影响因子
Scientific Reports
·
2019
·Vol. 9
·期 1
·1-9
·
IF 4.011
Huang Guojie,Lin Yaqi,Zhang Linxiu,Yan Zhihong,Wang Yudong,Liu Yi
The sulfur-selenium doped carbon quantum dots (S,Se-CQDs) were synthesized by one-step through hydrothermal method in this study, which have high fluorescence quantum yield (43%) and advanced ability to scavenge reactive oxygen species (ROS). They were characterized by transmission electron microscope (TEM), nuclear magnetic resonance (NMR), X-ray photoelectron spectroscopy (XPS), fourier transform infrared spectroscopy (FTIR). The results showed that the clearance rate of free radical reached to 40% with 200 μg/mL of S,Se-CQDs. The antioxidant activity of S,Se-CQDs is related to -SH and Se-SH on carbon quantum dots. S,Se-CQDs were able to access to cells which is beneficial to enhance the removal efficiency to ROS. In the biocompatibility experiment, the cell survival rate exceeded 95%, there was little effect on hatching rate, survival rate and heart rate of zebrafish which demonstrated that S,Se-CQDs have an excellent biocompatibility. It prompts that S,Se-CQDs will has proud application prospects in the field of biomedicine.
研究领域:
生物医学
·
材料科学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2020
·
IF 7.489
Hong Huang,Zhangfeng Shen,Biyun Chen,Xiaoyan Wang,Qineng Xia,Zhigang Ge,Yangang Wang,Xi Li
Mitochondrial oxidative stress is associated with the occurrence and development of a wide range of human diseases. The development of methodologies to alleviate oxidative stress-mediated injury may have therapeutic potential. Herein, we report the design and preparation of triphenylphosphonium-functionalized selenium-doped carbon nanodots (TPP-Se-CDs) that can efficiently scavenging hydroxyl radicals ( OH) and superoxide anions (O 2 − ) in mitochondria region. Se-CDs with two-photon blue fluorescence were initially prepared by facile hydrothermal treatment of selenomethionine, followed by the covalent conjugation with TPP. The as-obtained TPP-Se-CDs showed high colloidal stability, strong scavenging abilities towards OH and O 2 − . Moreover, TPP-Se-CDs exhibited low cytotoxicity and mitochondria targeting ability. Taking advantages of these prominent features, TPP-Se-CDs have been successfully applied to combat H 2 O 2 and phorbol 12-myristate 13-acetate (PMA) induced oxidative stress in mitochondria.
研究领域:
纳米技术
·
生物医学工程
·
材料科学
·
细胞生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Ye Liu,Kunting Lei,Shaoxiong Liu,Rui Yin,Minghai Zhao,Zhifeng Huang,Hai Hu,Li Liu
In this paper, a novel selenium-doped carbon nanosheet-decorated FeSe x -SnSe/C nanofibers (FeSnSe/SCNFs) composites have been prepared by electrostatic spinning. The unique morphology and structure endow the material with good electrochemical properties. The composite designated as FeSnSe/SCNFs-1, which has a molar ratio of 2:1 between Fe and Sn, performs best electrochemically. FeSnSe/SCNFs-1 anodes show a high reversible capacity of 816.1 mAh g −1 at 100 mA g −1 in lithium-ion batteries, and maintain a capacity of 414.8 mAh g −1 at 5000 mA g −1 . After 800 cycles at 1000 mA g −1 , it exhibits a capacity of 551.8 mAh g −1 , and after 100 cycles in potassium ion batteries at 100 mA g −1 , the capacity is 316.3 mAh g −1 with a retention rate of 90.5 % compared to the second cycle's capacity. This paper offers a novel approach to enhancing metal selenides' anode material performance for lithium/potassium ion batteries.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Kai Zhang,Xueyan Mao,Houming Zhao,Alberto Bianco,Shaohua Ge,Baojin Ma
Ferroptosis has been identified as a prevalent pathological process in both infectious and non-infectious inflammation. Multiregional iron accumulation within extracellular, cytoplasmic, and subcellular compartments, particularly into mitochondria, can trigger lipid peroxidation and subsequent ferroptosis. Meanwhile, mitochondrial dysfunction, as a hallmark feature of ferroptosis, also exacerbates ferroptosis and inflammation. Here, a strategy of multi-hierarchy iron chelation coupled with mitochondrial homeostasis regulation is proposed to inhibit ferroptosis and relieve inflammation based on selenium-doped carbon dots (SeCDs). SeCDs with reactive oxygen species (ROS) scavenging capacity can be efficiently internalized into cells and enriched in mitochondria. Through the multi-hierarchy chelation for extracellular, cytoplasmic, and mitochondrial iron, iron overload is remarkably inhibited. Meanwhile, promoting glutathione peroxidase 4 (GPX4) expression and activating the AMPK pathway can restrain the metabolism of glycerophospholipids and polyunsaturated fatty acids and lipid peroxidation. Importantly, SeCDs restore mitochondrial homeostasis by chelating mitochondrial iron, scavenging mtROS, and increasing the level of GPX4, thereby enhancing ferroptosis suppression. Further, SeCDs rescue the osteogenic differentiation potential of stem cells, which is generally weakened by ferroptosis. In vivo experiments prove that SeCDs can significantly inhibit ferroptosis and inflammation, and facilitate tissue regeneration. Thus, this multifunctional nanosystem provides a promising therapeutic strategy to inhibit ferroptosis and ease inflammation.
研究领域:
纳米技术
·
生物化学
·
药理学
·
炎症研究
·
细胞生物学
✓ 已验证
DOI
高影响因子
Arabian Journal of Chemistry
·
2023
·
IF 6
Lei Yang,Hong Huang,Ting Wang,Danling Zhou,Qing Chen,Dan Li,Shuzi Chen,Ping Lin
Endoplasmic reticulum, the largest cellular organelle where protein synthesis, folding, transportation, and the maintenance of Ca 2+ homeostasis occurred, is sensitive to the imbalance of its inner environment. Particularly, overproduction of reactive oxygen species in endoplasmic reticulum region can initiate endoplasmic reticulum stress and is tightly related to many metabolic diseases. In this respect, to retain normal function of endoplasmic reticulum, it is highly important to synthesize antioxidants with endoplasmic reticulum-targeting capability for precisely clearing excessively generated reactive oxygen species in endoplasmic reticulum. Herein, we demonstrate the preparation of endoplasmic reticulum-targeting Se-doped carbon nanodots and assays with HeLa cells as well as in vivo tests with mice have shown that the prepared carbon nanodots can significantly eliminate both •OH and O 2 •− . Experimental results declared that the fabricated carbon nanodots with powerful scavenging capabilities toward •OH and O 2 •- , low cytotoxicity and endoplasmic reticulum targetability can be utilized to protect cells against raised levels of reactive oxygen species in endoplasmic reticulum. What’s more, the fabricated carbon nanodots effectively alleviated phorbol 12-myristate 13-acetate induced ear inflammation in live mice.
研究领域:
纳米技术
·
生物医学工程
·
细胞生物学
·
药理学
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Nanomedicine
·
2022
·
IF 7.033
Mengqi Wang,Jingyu Ren,Zhanpeng Liu,Shubin Li,Liya Su,Biao Wang,Daoning Han,Gang Liu
Background After the synthesis of selenium doped carbon quantum dots (Se/CDs) via a step-by-step hydrothermal synthesis method with diphenyl diselenide (DPDSe) as precursor, the beneficial effects of Se/CDs’ supplementation on the in vitro development competence of ovine oocytes were firstly investigated in this study by the assay of maturation rate, cortical granules’ (CGs) dynamics, mitochondrial activity, reactive oxygen species (ROS) production, epigenetic modification, transcript profile, and embryonic development competence.Results The results showed that the Se/CDs’ supplementation during the in vitro maturation (IVM) process not only enhanced the maturation rate, CGs’ dynamics, mitochondrial activity and embryonic developmental competence of ovine oocytes, but remarkably decreased the ROS production level of ovine oocytes. In addition, the expression levels of H3K9me3 and H3K27me3 in the ovine oocytes were significantly up-regulated after the Se/CDs’ supplementation, in consistent with the expression levels of 5mC and 5hmC. Moreover, 2994 up-regulated differentially expressed genes (DEGs) and 846 repressed DEGs were found in the oocytes after the Se/CDs’ supplementation. According to the analyses of Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG), these DEGs induced by the Se/CDs’ supplementation were positively related to the progesterone mediated oocyte maturation and mitochondrial functions. And these remarkably up-regulated expression levels of DEGs related to oocyte maturation, mitochondrial function, and epigenetic modification induced by the Se/CDs’ supplementation further confirmed the beneficial effect of Se/CDs’ supplementation on the in vitro development competence of ovine oocytes.Conclusion The Se/CDs prepared in our study significantly promoted the in vitro development competence of ovine oocytes, benefiting the extended research about the potential applications of Se/CDs in mammalian breeding technologies.
研究领域:
生殖生物学
·
分子生物学
·
生物技术
·
动物科学
✓ 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）