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  1. Article ; Online: Sustainable Phenylalanine-Derived SAILs for Solubilization of Polycyclic Aromatic Hydrocarbons.

    Kapitanov, Illia V / Sudheer, Surya M / Yadav, Toshikee / Ghosh, Kallol K / Gathergood, Nicholas / Gupta, Vijai K / Karpichev, Yevgen

    Molecules (Basel, Switzerland)

    2023  Volume 28, Issue 10

    Abstract: The solubilization capacity of a series of sustainable phenylalanine-derived surface-active ionic liquids (SAILs) was evaluated towards polycyclic aromatic hydrocarbons-naphthalene, anthracene and pyrene. The key physico-chemical parameters of the ... ...

    Abstract The solubilization capacity of a series of sustainable phenylalanine-derived surface-active ionic liquids (SAILs) was evaluated towards polycyclic aromatic hydrocarbons-naphthalene, anthracene and pyrene. The key physico-chemical parameters of the studied systems (critical micelle concentration, spectral properties, solubilization parameters) were determined, analyzed and compared with conventional cationic surfactant, CTABr. For all studied PAH solubilization capacity increases with extension of alkyl chain length of PyPheOC
    Language English
    Publishing date 2023-05-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules28104185
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Antidepressant drug-protein interactions studied by spectroscopic methods based on fluorescent carbon quantum dots

    Reshma / Vaishanav, Sandeep K / Yadav, Toshikee / Sinha, Srishti / Tiwari, Swapnil / Satnami, Manmohan L / Ghosh, Kallol K

    Heliyon. 2019 May, v. 5, no. 5

    2019  

    Abstract: A highly sensitive fluorescent carbon quantum dots (CDs) was designed to measure the interaction of antidepressant drugs and serum albumins (SA). In present investigation the interaction of bovine serum albumin (BSA) and human serum albumin (HSA) with ... ...

    Abstract A highly sensitive fluorescent carbon quantum dots (CDs) was designed to measure the interaction of antidepressant drugs and serum albumins (SA). In present investigation the interaction of bovine serum albumin (BSA) and human serum albumin (HSA) with antidepressant drugs viz. amitryptiline hydrochloride (AMT), chlorpromazine hydrochloride (CPZ) and desipramine hydrochloride (DSP) bioconjugated on CDs have been studied by different spectroscopic techniques i.e., Fluorescence, UV-Visible, Dynamic light scattering (DLS) and FT-IR. The CDs were prepared by one-pot method using glucose and PEG-200. The developed CDs showed blue luminescence under irradiation with ultra-violet. The Stern-Volmer quenching constant (Kₛᵥ) indicates the presence of static quenching mechanism. The apparent binding constant Kₐ between antidepressant drugs with complex of SA-CDs have been determined. These results illustrated that CPZ shows strong binding with HSA. As further analyzed by FT-IR spectroscopy and DLS technique, the results suggested induced conformational changes on SA, thus confirming the experimental and theoretical results. Thus, a thorough knowledge of the energetics of drug-protein affinities in presence of CDs as attempted in this work is vital in giving way for appropriate drug delivery.
    Keywords Fourier transform infrared spectroscopy ; antidepressants ; blood serum ; bovine serum albumin ; chlorpromazine ; fluorescence ; glucose ; human serum albumin ; irradiation
    Language English
    Dates of publication 2019-05
    Publishing place Elsevier Ltd
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2019.e01631
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: Antidepressant drug-protein interactions studied by spectroscopic methods based on fluorescent carbon quantum dots.

    Reshma / Vaishanav, Sandeep K / Yadav, Toshikee / Sinha, Srishti / Tiwari, Swapnil / Satnami, Manmohan L / Ghosh, Kallol K

    Heliyon

    2019  Volume 5, Issue 5, Page(s) e01631

    Abstract: A highly sensitive fluorescent carbon quantum dots (CDs) was designed to measure the interaction of antidepressant drugs and serum albumins (SA). In present investigation the interaction of bovine serum albumin (BSA) and human serum albumin (HSA) with ... ...

    Abstract A highly sensitive fluorescent carbon quantum dots (CDs) was designed to measure the interaction of antidepressant drugs and serum albumins (SA). In present investigation the interaction of bovine serum albumin (BSA) and human serum albumin (HSA) with antidepressant drugs viz. amitryptiline hydrochloride (AMT), chlorpromazine hydrochloride (CPZ) and desipramine hydrochloride (DSP) bioconjugated on CDs have been studied by different spectroscopic techniques i.e., Fluorescence, UV-Visible, Dynamic light scattering (DLS) and FT-IR. The CDs were prepared by one-pot method using glucose and PEG-200. The developed CDs showed blue luminescence under irradiation with ultra-violet. The Stern-Volmer quenching constant (K
    Language English
    Publishing date 2019-05-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2019.e01631
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Degradation of Organophosphate Pesticides Using Pyridinium Based Functional Surfactants

    Sharma, Rahul / Gathergood Nicholas / Ghosh Kallol K / Gupta Bhanushree / Karpichev Yevgen / Kuca Kamil / Marek Jan / Sahu Arvind Kumar / Sinha Srishti / Yadav Toshikee

    ACS sustainable chemistry . 2016 Dec. 05, v. 4, no. 12

    2016  

    Abstract: The enhancement of environmental quality is one of the key principles of sustainable agriculture, which points to less use of synthetic pesticides and chemical fertilizers. Green chemistry offers an array of innovative approaches to develop safe and ... ...

    Abstract The enhancement of environmental quality is one of the key principles of sustainable agriculture, which points to less use of synthetic pesticides and chemical fertilizers. Green chemistry offers an array of innovative approaches to develop safe and efficient methods of chemical transformation toward nontoxic and readily biodegradable products under mild conditions. The development of new strategies for chemical decontamination of organophosphorus nerve agents and pesticides is an issue of immediate concern. Oximes have been demonstrated to find an application as functionalized organized molecular systems. In this study, kinetic investigations have been explored to estimate the nucleophilic efficiency of the oxime-functionalized pyridinium surfactants 3-hydroxyiminomethyl-1-alkylpyridinium bromide (alkyl = CₙH₂ₙ₊₁, n = 10, 12, 14, 16) and 4-hydroxyiminomethyl-1-alkylpyridinium bromide (alkyl = CₙH₂ₙ₊₁, n = 10, 12) for the hydrolysis of the pesticides paraoxon (NPDEP) and methyl paraoxon (NPDMP) in mixed micelles with the conventional cationic surfactants CPB, CTAB, and CDMEAB. Comprehensive study of the surface properties and acid–base equilibria of micellar systems composed of (i) functionalized surfactants and (ii) mixed functionalized/conventional cationic micelles has been carried out. The pKₐ of studied nucleophiles in the presence of surfactants has also been monitored. The effect of pH, the comicellar effect of other surfactants, and the effect of alkyl chain length of functionalized surfactants have been monitored on the observed rate constants of cleavage of the studied organophosphates.
    Keywords biodegradable products ; cationic surfactants ; cetyltrimethylammonium bromide ; decontamination ; environmental quality ; green chemistry ; hydrolysis ; Lewis bases ; micelles ; mineral fertilizers ; nerve agents ; oximes ; paraoxon ; pH ; sustainable agriculture
    Language English
    Dates of publication 2016-1205
    Size p. 6962-6973.
    Publishing place American Chemical Society
    Document type Article
    ISSN 2168-0485
    DOI 10.1021/acssuschemeng.6b01878
    Database NAL-Catalogue (AGRICOLA)

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