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  1. Article ; Online: Phosphonium Ionic Liquid-Activated Sulfur Vulcanization: A Way Forward to Reduce Zinc Oxide Levels in Industrial Rubber Formulations.

    Sattar, Mohammad Abdul / Patnaik, Archita

    ChemSusChem

    2023  Volume 16, Issue 10, Page(s) e202202309

    Abstract: Extensive use of zinc oxide and accelerators such as diphenyl guanidine (DPG) in the vulcanization of rubber composites entail potential environmental risks. These are pervasive contaminants of roadway runoff originating from tire wear particles (TWPs). ... ...

    Abstract Extensive use of zinc oxide and accelerators such as diphenyl guanidine (DPG) in the vulcanization of rubber composites entail potential environmental risks. These are pervasive contaminants of roadway runoff originating from tire wear particles (TWPs). Herein, the effect of phosphonium ionic liquids (PILs) in styrene-butadiene rubber compounds was demonstrated with reduced ZnO loading and no DPG to minimize the environmental footprint of the vulcanization process. The structure and chemistry of PILs were found to be the influencing parameters impelling the cross-linking kinetics, enabling shorter induction times. The generation of active Zn
    Language English
    Publishing date 2023-03-23
    Publishing country Germany
    Document type Journal Article
    ISSN 1864-564X
    ISSN (online) 1864-564X
    DOI 10.1002/cssc.202202309
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Design Principles of Interfacial Dynamic Bonds in Self-Healing Materials: What are the Parameters?

    Sattar, Mohammad Abdul / Patnaik, Archita

    Chemistry, an Asian journal

    2020  Volume 15, Issue 24, Page(s) 4215–4240

    Abstract: Polymers and polymer nanocomposites (PNCs) are extensively used in daily life. However, the growing requirement of advanced PNCs laid persistent environmental issues due to deformation-induced damage that once formed, does not vanish at future stages. ... ...

    Abstract Polymers and polymer nanocomposites (PNCs) are extensively used in daily life. However, the growing requirement of advanced PNCs laid persistent environmental issues due to deformation-induced damage that once formed, does not vanish at future stages. Therefore, self-healing materials with significantly enhanced long life and safety have been designed to epitomize the forefront of recent advances in materials chemistry and engineering. Self-healing PNC (SH-PNCs) materials are a class of smart composites in which nanoparticles induce interfacial reconstruction via multiple covalent and non-covalent interactions culminating in improved mechanical strength and self-healing capability. However, since the filler nanoparticles are independent of the reversible supramolecular network, the filler incorporation destroys the self-healing ability but could enhance the mechanical strength. Hence, the molecular parameters controlling the alliance of robust mechanical strength with virtuous self-healing ability is a crucial challenge. Herein, we review the latest developments that have been made in self-healing materials and puts advancing insights into the fabrication of SH-PNCs in which the combination of covalent bonds and non-covalent interactions provides an optimal balance between their mechanical performance and self-healing capability. We highlight the importance of specific entropic, enthalpic changes, polymer chain conformations and flexibility that enable the reconstruction of damaged surface and physical reshuffling of dynamic bonds at the interface of cut surfaces.
    Language English
    Publishing date 2020-11-17
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 2233006-9
    ISSN 1861-471X ; 1861-4728
    ISSN (online) 1861-471X
    ISSN 1861-4728
    DOI 10.1002/asia.202001157
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Role of Interface Structure and Chain Dynamics on the Diverging Glass Transition Behavior of SSBR-SiO

    Sattar, Mohammad Abdul / Patnaik, Archita

    ACS omega

    2020  Volume 5, Issue 33, Page(s) 21191–21202

    Abstract: Intermolecular interactions between the constituents of a polymer nanocomposite at the polymer-particle interface strongly affect the segmental mobility of polymer chains, correlated with their glass transition behavior, and are responsible for the ... ...

    Abstract Intermolecular interactions between the constituents of a polymer nanocomposite at the polymer-particle interface strongly affect the segmental mobility of polymer chains, correlated with their glass transition behavior, and are responsible for the improved dynamical viscoelastic properties. In this work, we emphasized on the evolution of characteristic interfaces and their dynamics in silica (SiO
    Language English
    Publishing date 2020-08-13
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.0c02929
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Design of Dual Hybrid Network Natural Rubber-SiO

    Sattar, Mohammad Abdul / Gangadharan, Shyju / Patnaik, Archita

    ACS omega

    2019  Volume 4, Issue 6, Page(s) 10939–10949

    Abstract: The preparation of natural rubber (NR)-silica ( ... ...

    Abstract The preparation of natural rubber (NR)-silica (SiO
    Language English
    Publishing date 2019-06-24
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.9b01243
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Epoxyeicosatrienoic Acid Analog EET-A Blunts Development of Lupus Nephritis in Mice.

    Hye Khan, Md Abdul / Stavniichuk, Anna / Sattar, Mohammad Abdul / Falck, John R / Imig, John D

    Frontiers in pharmacology

    2019  Volume 10, Page(s) 512

    Abstract: Systemic lupus erythematosus (SLE) is a chronic autoimmune inflammatory disorder that causes life threatening renal disease and current therapies are limited with serious side-effects. CYP epoxygenase metabolites of arachidonic acid epoxyeicosatrienoic ... ...

    Abstract Systemic lupus erythematosus (SLE) is a chronic autoimmune inflammatory disorder that causes life threatening renal disease and current therapies are limited with serious side-effects. CYP epoxygenase metabolites of arachidonic acid epoxyeicosatrienoic acids (EETs) demonstrate strong anti-inflammatory and kidney protective actions. We investigated the ability of an orally active EET analog, EET-A to prevent kidney injury in a mouse SLE model. Twenty-weeks old female NZBWF1 (SLE) and age-matched NZW/LacJ (Non SLE) were treated with vehicle or EET-A (10 mg/kg/d, p.o.) for 14 weeks and urine and kidney tissues were collected at the end of the protocol. SLE mice demonstrated marked renal chemotaxis with 30-60% higher renal mRNA expression of CXC chemokine receptors (CXCR) and CXC chemokines (CXCL) compared to Non SLE mice. In SLE mice, the elevated chemotaxis is associated with 5-15-fold increase in cytokine mRNA expression and elevated inflammatory cell infiltration in the kidney. SLE mice also had elevated BUN, serum creatinine, proteinuria, and renal fibrosis. Interestingly, EET-A treatment markedly diminished renal CXCR and CXCL renal mRNA expression in SLE mice. EET-A treatment also reduced renal TNF-α, IL-6, IL-1β, and IFN-γ mRNA expression by 70-80% in SLE mice. Along with reductions in renal chemokine and cytokine mRNA expression, EET-A reduced renal immune cell infiltration, BUN, serum creatinine, proteinuria and renal fibrosis in SLE mice. Overall, we demonstrate that an orally active EET analog, EET-A prevents renal injury in a mouse model of SLE by reducing inflammation.
    Language English
    Publishing date 2019-05-10
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587355-6
    ISSN 1663-9812
    ISSN 1663-9812
    DOI 10.3389/fphar.2019.00512
    Database MEDical Literature Analysis and Retrieval System OnLINE

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