LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 35

Search options

  1. Article: Hierarchical Nanoheterostructure of HFIP-Grafted α-Fe

    Wang, Xuechun / Liu, Jingyuan / Li, Rumin / Yu, Jing / Liu, Qi / Zhu, Jiahui / Liu, Peili

    Nanomaterials (Basel, Switzerland)

    2024  Volume 14, Issue 3

    Abstract: New and efficient sensors of nerve agents are urgently demanded to prevent them from causing mass casualties in war or terrorist attacks. So, in this work, a novel hierarchical nanoheterostructure was synthesized via the direct growth of α- ... ...

    Abstract New and efficient sensors of nerve agents are urgently demanded to prevent them from causing mass casualties in war or terrorist attacks. So, in this work, a novel hierarchical nanoheterostructure was synthesized via the direct growth of α-Fe
    Language English
    Publishing date 2024-02-02
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662255-5
    ISSN 2079-4991
    ISSN 2079-4991
    DOI 10.3390/nano14030305
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Frequency Stability Prediction of Power Systems Using Vision Transformer and Copula Entropy.

    Liu, Peili / Han, Song / Rong, Na / Fan, Junqiu

    Entropy (Basel, Switzerland)

    2022  Volume 24, Issue 8

    Abstract: This paper addresses the problem of frequency stability prediction (FSP) following active power disturbances in power systems by proposing a vision transformer (ViT) method that predicts frequency stability in real time. The core idea of the FSP approach ...

    Abstract This paper addresses the problem of frequency stability prediction (FSP) following active power disturbances in power systems by proposing a vision transformer (ViT) method that predicts frequency stability in real time. The core idea of the FSP approach employing the ViT is to use the time-series data of power system operations as ViT inputs to perform FSP accurately and quickly so that operators can decide frequency control actions, minimizing the losses caused by incidents. Additionally, due to the high-dimensional and redundant input data of the power system and the O(N
    Language English
    Publishing date 2022-08-21
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2014734-X
    ISSN 1099-4300 ; 1099-4300
    ISSN (online) 1099-4300
    ISSN 1099-4300
    DOI 10.3390/e24081165
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Regulation of Cervical Cancer Development by a Novel Circ_0000212/miR-1236-3p/GREM1 ceRNA Crosstalk.

    Zhang, Yajun / Liu, Peili / Wen, Daoqing / Xiong, Haizhen / Zhou, Zhe / Yan, Li

    Molecular biotechnology

    2023  Volume 65, Issue 12, Page(s) 2086–2098

    Abstract: Circular RNAs (circRNAs) possess important functions in cervical carcinogenesis by operating as competing endogenous RNAs (ceRNAs). Our preliminary bioinformatics predicted the potential circ_0000212/microRNA (miR)-1236-3p/gremlin 1 (GREM1) ceRNA ... ...

    Abstract Circular RNAs (circRNAs) possess important functions in cervical carcinogenesis by operating as competing endogenous RNAs (ceRNAs). Our preliminary bioinformatics predicted the potential circ_0000212/microRNA (miR)-1236-3p/gremlin 1 (GREM1) ceRNA crosstalk. Thus, we further elucidated whether the novel ceRNA crosstalk can participate in cervical cancer development. Circ_0000212, miR-1236-3p and GREM1 were quantified by real-time quantitative polymerase chain reaction (qPCR) and immunoblotting. 5-ethynyl-2'-deoxyuridine (EdU) assay, flow cytometry, and tube formation assay were performed to assess cell proliferation, apoptosis and tube formation, respectively. Transwell assay was used to detect cell migration and invasion. Mouse xenografts were established to evaluate the role of circ_0000212 in vivo. Dual-luciferase reporter assay was performed to verify the direct relationship between miR-1236-3p and circ_0000212 or GREM1. Circ_0000212 expression was elevated in human cervical cancer. Silencing of endogenous circ_0000212 hindered cancer cell proliferation, motility and invasion and induced apoptosis, as well as diminished the tube formation of human umbilical vein endothelial cells (HUVECs) in vitro. Circ_0000212 silencing also weakened tumor growth in vivo. Mechanistically, circ_0000212 directly bound to miR-1236-3p, and downregulation of miR-1236-3p reversed these effects of circ_0000212 silencing on cell malignant phenotypes and HUVEC tube formation. GREM1 was a direct miR-1236-3p target, and its expression was regulated by circ_0000212 through miR-1236-3p. Moreover, miR-1236-3p upregulation impeded cancer cell malignant phenotypes and HUVEC tube formation by targeting GREM1. Our findings identify a novel ceRNA regulatory network, circ_0000212/miR-1236-3p/GREM1 axis, in cervical carcinogenesis, and provide potential targets that can be explored for therapeutic interventions.
    MeSH term(s) Animals ; Female ; Humans ; Mice ; Carcinogenesis/genetics ; Cell Line, Tumor ; Cell Proliferation/genetics ; Human Umbilical Vein Endothelial Cells ; Intercellular Signaling Peptides and Proteins ; MicroRNAs/genetics ; Uterine Cervical Neoplasms/genetics ; RNA, Circular/genetics
    Chemical Substances GREM1 protein, human ; Intercellular Signaling Peptides and Proteins ; MicroRNAs ; MIRN1236 microRNA, human ; RNA, Circular
    Language English
    Publishing date 2023-03-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1193057-3
    ISSN 1559-0305 ; 1073-6085
    ISSN (online) 1559-0305
    ISSN 1073-6085
    DOI 10.1007/s12033-023-00721-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Surface hydrolysis-anchored eugenol self-polishing marine antifouling coating.

    Sha, Jianang / Liu, Xin / Chen, Rongrong / Yu, Jing / Liu, Qi / Liu, Jingyuan / Zhu, Jiahui / Liu, Peili / Li, Rumin / Wang, Jun

    Journal of colloid and interface science

    2023  Volume 637, Page(s) 67–75

    Abstract: Traditional self-polishing antifouling coatings kill surface organisms by releasing toxic substances, which are damaging to the ecosystem. As a natural antimicrobial substance, eugenol is environmentally friendly and has been proven by different research ...

    Abstract Traditional self-polishing antifouling coatings kill surface organisms by releasing toxic substances, which are damaging to the ecosystem. As a natural antimicrobial substance, eugenol is environmentally friendly and has been proven by different research teams to be effective in enhancing the anti-fouling effect of coatings in the real sea. While in these previous research works, the eugenol was released directly into the seawater thus cannot further serve as surface antifouling effect, leading to a limited antifouling effect of the coating. In this work, the quaternary ammonium component was introduced into the butyl ester-based resin - poly (eugenol methacrylate - acryloyloxyethyltrimethyl ammonium chloride - hexafluorobutyl methacrylate - methyl methacrylate - butyl methacrylate - ethylene glycol methyl ether acrylate) (EMQFP) coating for the first time by simple one-step free radical polymerization method. On the one hand, the eugenol produced by hydrolysis is anchored to the quaternary ammonium on the coating surface for a period of time due to the cationic-π interaction, instead of being released into seawater immediately after hydrolysis, thus increasing the utilization rate of eugenol; on the other hand, the negatively charged carboxylate groups generated after hydrolysis in the coating are mutually attracted to quaternary ammonium through electrostatic effect, so the resin chain segment conformation on the coating surface adjusted to produce zwitterionic-like structure, and the hydration of zwitterionic inhibits primary fouling adhesion.
    Language English
    Publishing date 2023-01-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2023.01.058
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Silicone-modified polyurea-interpenetrating polymer network fouling release coatings with excellent wear resistance property tailored to regulations.

    Wang, Hongxia / Chen, Rongrong / Song, Dalei / Sun, Gaohui / Yu, Jing / Liu, Qi / Liu, Jingyuan / Zhu, Jiahui / Liu, Peili / Wang, Jun

    Journal of colloid and interface science

    2023  Volume 653, Issue Pt A, Page(s) 971–980

    Abstract: The invasion of alien species via marine organisms attaching to the surfaces of ship hulls is a growing problem. A number of countries have introduced corresponding regulations to combat ship biofouling. One effective way to solve this problem is to ... ...

    Abstract The invasion of alien species via marine organisms attaching to the surfaces of ship hulls is a growing problem. A number of countries have introduced corresponding regulations to combat ship biofouling. One effective way to solve this problem is to apply a fouling release coating with excellent wear resistance. In this study, a silicone-modified polyaspartic ester polyurea was synthesized by a simultaneous crosslinking polymerization. Polyaspartic ester polyurea is employed to form a tightly cross-linked network with excellent toughness and outstanding adhesion, while polydimethylsiloxane is used to form a relatively soft cross-linked network with low surface energy and surface elasticity modulus. Polyurea and silicone molecular chain lock onto each other to form interpenetrating polymer network (IPN) through their respective polymerization systems and cross-linking processes. The synergy between silicone and polyurea provides excellent mechanical properties as well as fouling release performance through the locking mechanism. This study provides a promising and universal strategy for the development of fouling release coatings with excellent wear resistance.
    Language English
    Publishing date 2023-09-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2023.09.129
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article: Constructing three-dimensional network C, O Co-doped nitrogen-deficient carbon nitride regulated by acrylic fluoroboron overall marine antifouling

    Sun, Xiaonan / Zhang, Linlin / Chen, Rongrong / Liu, Jingyuan / Yu, Jing / Zhu, Jiahui / Liu, Peili / Wang, Jun / Liu, Qi

    Journal of colloid and interface science. 2022 Feb. 15, v. 608

    2022  

    Abstract: To deal with unwanted biofouling adsorption, which impacts the economy and the environment, significant research has been devoted to composite systems involving a photocatalyst combined with self-renewal resin to provide synergistic antifouling. Here, ... ...

    Abstract To deal with unwanted biofouling adsorption, which impacts the economy and the environment, significant research has been devoted to composite systems involving a photocatalyst combined with self-renewal resin to provide synergistic antifouling. Here, photocatalyst based on three-dimensional (3D) network of carbon–oxygen-doped nitrogen-deficient carbon nitride and acrylic fluoroboron polymer as a system was successfully synthesized. 3D networks carbon nitride with carbon–oxygen dopants and nitrogen defects were prepared as skeletons, which effectively support and regulate the hydrolysis rate of the polymer. These composite systems exhibits excellent diatom anti-adhesion performance and high antibacterial rates for Escherichia coli and Staphylococcus aureus of up to 91.87% and 88.52%, respectively. In addition, self-cleaning function of the composite system are proved by and higher efficiency of chemical oxygen demand (COD) removal owing to efficient charge-carrier separation and transfer within the 3D network carbon nitride network. The great potential applications of this strategy demonstrated in marine engineering in the future.
    Keywords Bacillariophyceae ; Escherichia coli ; Staphylococcus aureus ; adsorption ; biofouling ; carbon nitride ; chemical oxygen demand ; hydrolysis ; nitrogen ; photocatalysts ; polymers
    Language English
    Dates of publication 2022-0215
    Size p. 1802-1812.
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2021.10.044
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  7. Article: Surface morphology properties and antifouling activity of Bi2WO6/boron-grafted polyurethane composite coatings realized via multiple synergy

    Wang, Hongmin / Zhang, Linlin / Chen, Rongrong / Liu, Qi / Liu, Jingyuan / Yu, Jing / Liu, Peili / Duan, Jizhou / Wang, Jun

    Journal of colloid and interface science. 2022 Nov. 15, v. 626

    2022  

    Abstract: An inorganic–organic composite coating is an effective way to solve the issue of marine organism attachment and realize multi-element synergistic antifouling. Herein, Bi₂WO₆/boron-grafted polyurethane composite coatings (BWOB) composed of Bi₂WO₆ with ... ...

    Abstract An inorganic–organic composite coating is an effective way to solve the issue of marine organism attachment and realize multi-element synergistic antifouling. Herein, Bi₂WO₆/boron-grafted polyurethane composite coatings (BWOB) composed of Bi₂WO₆ with three morphologies (nanosheet, flower and microsphere) and boron-grafted polyurethane (ITB) were successfully synthesized to achieve high-efficiency antifouling. Bi₂WO₆ nanoparticles were evenly distributed on the surface and inside the ITB to form micro/nanostructures. In the composite coatings doped with flower-shaped Bi₂WO₆, BWOB-5 showed excellent antibacterial and antidiatom adhesion properties, achieving 95.43% and 98.38% against Escherichia coli and Staphylococcus aureus, respectively, and 98.62% against Nitzschia closterium. In addition, the micro/nanostructure on the surface, the stable production of hydroxyl radicals (·OH) and superoxide radicals (·O₂–) during photocatalysis, and the antifouling functional groups of the resin matrix in the BWOB composite coatings were all conducive to photocatalytic antifouling activity. More importantly, BWOB coatings exhibited excellent environmentally friendly properties. Therefore, BWOB coatings are expected to have potential application value in the field of photocatalytic sterilization and antifouling.
    Keywords Escherichia coli ; Nitzschia closterium ; Staphylococcus aureus ; adhesion ; antifouling activities ; aquatic organisms ; boron ; flowers ; microparticles ; nanosheets ; photocatalysis ; polyurethanes
    Language English
    Dates of publication 2022-1115
    Size p. 815-823.
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2022.06.180
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  8. Article: Ultra-high flexibility amidoximated ethylene acrylic acid copolymer film synthesized by the mixed melting method for uranium adsorption from simulated seawater

    Wang, Ying / Lin, Zaiwen / Zhu, Jiahui / Liu, Jingyuan / Yu, Jing / Chen, Rongrong / Liu, Peili / Liu, Qi / Wang, Jun

    Journal of hazardous materials. 2022 Mar. 15, v. 426

    2022  

    Abstract: If U(VI) in seawater (unconventional uranium resource) can be extracted efficiently, it can provide important supplies and guarantees for the stable development of nuclear power. In this study, a mixing melting method without condensation agent was ... ...

    Abstract If U(VI) in seawater (unconventional uranium resource) can be extracted efficiently, it can provide important supplies and guarantees for the stable development of nuclear power. In this study, a mixing melting method without condensation agent was proposed to prepare ultra-high flexibility and different proportions DAMN modified EAA resin film (EAA-DAMN) through the condensation reaction between -COOH and -NH₂ and the uniform mixing of liquid EAA and DAMN. In addition, the dense film structure and -CN of EAA-DAMN were transformed into multiple pores structure and amidoxime groups of the amidoximated EAA (AO-EAA) by amidoxime reaction. The AO-EAA-3 showed the most excellent adsorption performance (qₑ=146.40 mg g⁻¹) at pH = 5, which was 2.33 times that of EAA. Moreover, a hypothesis was proposed for the first time that -NH₂ in the material could combine with H⁺ ionized by water to form -NH₃⁺, and then adsorbed NO₃⁻ in the solution through electrostatic attraction, and O element from NO₃⁻ adsorbed on the surface and N-O from amidoxime groups of material as the adsorption active sites performed coordination with U(VI), thereby improving the adsorption performance of AO-EAA.
    Keywords acrylic acid ; adsorption ; composite polymers ; condensation reactions ; electrostatic interactions ; ethylene ; liquids ; nuclear power ; pH ; seawater ; uranium
    Language English
    Dates of publication 2022-0315
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2021.127808
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  9. Article ; Online: Macrophage-Inspired marine antifouling coating with dynamic surfaces based on regulation of dynamic covalent bonds.

    Wang, Chao / Liu, Wenbin / Chen, Rongrong / Sun, Gaohui / Yu, Jing / Liu, Qi / Liu, Jingyuan / Li, Ying / Zhu, Jiahui / Liu, Peili / Wang, Jun

    Journal of colloid and interface science

    2024  Volume 670, Page(s) 223–233

    Abstract: Macrophages can kill bacteria and viruses by releasing free radicals, which provides a possible approach to construct antifouling coatings with dynamic surfaces that release free radicals if the breaking of dynamic covalent bonds is precisely regulated. ... ...

    Abstract Macrophages can kill bacteria and viruses by releasing free radicals, which provides a possible approach to construct antifouling coatings with dynamic surfaces that release free radicals if the breaking of dynamic covalent bonds is precisely regulated. Herein, inspired by the defensive behavior of macrophages of releasing free radicals to kill bacteria and viruses, a marine antifouling coating composed of polyurethane incorporating dimethylglyoxime (PU
    Language English
    Publishing date 2024-05-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2024.05.089
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: MOF-derived electrochemical catalyst Cu-N/C for the enhancement of amperometric oxygen detection.

    Yin, Wenyan / Zhang, Milin / Liu, Jingyuan / Alali, Khaled Tawfik / Yu, Jing / Zhu, Jiahui / Liu, Peili / Li, Rumin / Wang, Jun

    Nanoscale

    2022  Volume 14, Issue 5, Page(s) 1796–1806

    Abstract: Electrochemical sensors using ionic liquids as electrolytes for oxygen detection are now getting more and more attention. Recently, an ionic liquid combined with an electrochemically active catalyst system has become popular for boosting the sensing ... ...

    Abstract Electrochemical sensors using ionic liquids as electrolytes for oxygen detection are now getting more and more attention. Recently, an ionic liquid combined with an electrochemically active catalyst system has become popular for boosting the sensing performance of oxygen sensors. In this work, the imidazolyl-based ionic liquid 1-butyl-2,3-dimethylimidazole bis((trifluoromethyl)sulfonyl)imide [Bmmim][TFSI] is first prepared by a facile two-step method. Subsequently, a transition metal and N-codoped porous carbon oxygen reduction electrochemical catalyst Cu-N/C is synthesized by calcining the Cu-doped ZIF-8 precursor and then blending it in different ratios with the ionic liquid [Bmmim][TFSI] as composite electrolytes for oxygen detection. The composite electrolyte Cu-N/C/[Bmmim][TFSI] exhibits increased responses in cyclic voltammetry (CV) and chronoamperometry (CA) relative to that of the pure ionic liquid. Furthermore, the CV and CA data show that 6% Cu-N/C/[Bmmim][TFSI] has the optimum oxygen sensing response with an enhanced reduction peak current, a sensitivity of 0.1678 μA/[% O
    Language English
    Publishing date 2022-02-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 2515664-0
    ISSN 2040-3372 ; 2040-3364
    ISSN (online) 2040-3372
    ISSN 2040-3364
    DOI 10.1039/d1nr06758c
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top