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  1. Article ; Online: Metal-free C–H Borylation and Hydroboration of Indoles

    Pinaki Nad / Arup Mukherjee

    ACS Omega, Vol 8, Iss 41, Pp 37623-

    2023  Volume 37640

    Keywords Chemistry ; QD1-999
    Language English
    Publishing date 2023-10-01T00:00:00Z
    Publisher American Chemical Society
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Use of a Class Exercise to Maximize Student Interest in an Introductory MIS Course

    Arup Mukherjee

    Issues in Informing Science and Information Technology, Vol 2, Pp 481-

    2005  Volume 491

    Keywords Technology ; T ; Technology (General) ; T1-995 ; Industrial engineering. Management engineering ; T55.4-60.8 ; Information technology ; T58.5-58.64 ; Bibliography. Library science. Information resources ; Z
    Language English
    Publishing date 2005-01-01T00:00:00Z
    Publisher Informing Science Institute
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: Carboxymethyl guar gum synthesis in homogeneous phase and macroporous 3D scaffolds design for tissue engineering

    Kundu, Sonia / Aalok Basu / Aatrayee Das / Arup Mukherjee / Debjani Ghosh / Pallab Datta

    Carbohydrate polymers. 2018 July 01, v. 191

    2018  

    Abstract: Guar gum (GG) is a galactomannan obtained directly from the Cyamopsis tetragonoloba seeds pericarb. The biopolymer hydrates hugely in three chain associated coil formations. Chaotropic Hofmeister ion like lithium interacts at the hydrogen bonding sites ... ...

    Abstract Guar gum (GG) is a galactomannan obtained directly from the Cyamopsis tetragonoloba seeds pericarb. The biopolymer hydrates hugely in three chain associated coil formations. Chaotropic Hofmeister ion like lithium interacts at the hydrogen bonding sites and render GG homogenization in polar solvents like dimethyl sulfoxide. This phenomenon was used for the first time for galactomannan derivatisations in homogeneous phase. Higher degree of substitution (DS) that was hereto unattainable in GG was achieved due to Hofmeister ion assisted assembly deformations. Furthermore, carboxymethyl guar gum (CMGG, DS = 1.10) blends well in poly-vinyl alcohol (PVA) at 2:1 mass ratio and enabled hydrophilic porous scaffold design for cell propagation. CMGG-PVA scaffolds porosity was 70–90% and the tensile strength was 6.32 MPa. CMGG-PVA scaffolds were useful as cell factories and in tissue engineering. New generation guar gum derivative scaffolds were non cytotoxic and permitted cell propagation in growth medium.
    Keywords alcohols ; biopolymers ; culture media ; Cyamopsis tetragonoloba ; cytotoxicity ; deformation ; dimethyl sulfoxide ; galactomannans ; guar gum ; homogenization ; hydrogen bonding ; hydrophilicity ; lithium ; mixing ; porosity ; porous media ; seeds ; solvents ; tensile strength ; tissue engineering
    Language English
    Dates of publication 2018-0701
    Size p. 71-78.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 1501516-6
    ISSN 1879-1344 ; 0144-8617
    ISSN (online) 1879-1344
    ISSN 0144-8617
    DOI 10.1016/j.carbpol.2018.03.007
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Development of biopolymer nanocomposite for silver nanoparticles and Ciprofloxacin controlled release

    Islan, German A / Arup Mukherjee / Guillermo R. Castro

    International journal of biological macromolecules. 2015 Jan., v. 72

    2015  

    Abstract: Screening of biopolymeric gel beads containing Silver NanoParticles (Ag-NPs) stabilized in Guar Gum Alkyl Amine (GGAA) and Ciprofloxacin (Cip) was carried out in order to obtain a novel nanocomposite with controlled release profile of both antimicrobians. ...

    Abstract Screening of biopolymeric gel beads containing Silver NanoParticles (Ag-NPs) stabilized in Guar Gum Alkyl Amine (GGAA) and Ciprofloxacin (Cip) was carried out in order to obtain a novel nanocomposite with controlled release profile of both antimicrobians. The selected matrix composed of Alginate/High Methoxyl Pectin (HMP)/GGAA (4:4:1) was able to co-incorporate Ag-NPs and Cip with encapsulation efficiency higher than 70%. SEM images revealed good cohesivity and compatibility between the biopolymers and the cargos. Beads provided protection against Ag-NPs degradation at acidic pHs and HMP would played a key role providing hydrophobic regions. While Cip release profile showed a pH independent diffusional process, Ag-NPs release was restricted to matrix erodability. Calcium quelating agents and/or alginate degrading enzymes could modulate the release profile. The bactericidal activity of beads was tested in liquid medium, showing cooperative effects between the antimicrobials against Pseudomonas aeruginosa, Escherichia coli, Bacillus cereus and Staphylococcus aureus. TEM images confirmed interaction of Ag-NPs with bacterial surfaces followed by membrane damage. Results suggested the nanocomposite matrix as a promising system for oral treatment of intestinal infectious diseases caused by multidrug resistant and unknown microorganisms, since both Cip and Ag-NPs would be able to reach intestine in the active form.
    Keywords antibacterial properties ; Bacillus cereus ; biopolymers ; calcium ; ciprofloxacin ; encapsulation ; enzymes ; Escherichia coli ; gels ; guar gum ; hydrophobicity ; infectious diseases ; intestines ; microorganisms ; multiple drug resistance ; nanocomposites ; nanosilver ; oral administration ; pectins ; pH ; Pseudomonas aeruginosa ; scanning electron microscopy ; screening ; Staphylococcus aureus ; transmission electron microscopy
    Language English
    Dates of publication 2015-01
    Size p. 740-750.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2014.09.020
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: CENTRAL ANTINOCICEPTIVE EFFECT OF DIFFERENT EXTRACTS OF SARACA ASOCA SEEDS ASSESSED USING HOTPLATE AND TAIL IMMERSION METHODS

    Mradu Gupta / Saumyakanti Sasmal / Arup Mukherjee Gupta

    International Research Journal of Pharmacy, Vol 4, Iss 10, Pp 94-

    2013  Volume 98

    Abstract: The stem bark of Ashoka (Saraca asoca) plant has been traditionally used for a number of therapeutic purposes including anti-inflammatory activities. It has been described in ancient Ayurvedic texts as an analgesic also but rampant use of its stem bark ... ...

    Abstract The stem bark of Ashoka (Saraca asoca) plant has been traditionally used for a number of therapeutic purposes including anti-inflammatory activities. It has been described in ancient Ayurvedic texts as an analgesic also but rampant use of its stem bark has affected the plant population although its seeds are available in plenty. This research effort aims to examine the central analgesic effect of acetone, methanol and aqueous extracts of the powder of Asoka seeds to validate its antinociceptive properties described in the literature. Apart from the standard pharmacognosy and phyto-chemical examination, acute toxicity studies were carried out on all the extracts before assessing the central analgesic effect using the standard techniques of hot plate and tail immersion methods. Morphine Sulphate was used as the standard drug in both these cases. During phytochemical analysis, flavonoids, polyphenols, tannins and saponins were found in the plant extracts while no significant morbidity or any mortality was noticed during the toxicity studies. All the extracts exhibited significant central analgesic effect at doses of 300 mg/kg and 500 mg/kg as compared to the control group, the antinociceptive efficacy being greater at the higher drug dose. The highest analgesic effect was observed in case of aqueous extract, followed by acetone extract and the lowest in case of methanol extract. The therapeutic efficacy at higher dosage of aqueous extract was comparable to but lower compared to the standard drug. However, the analgesic effect of the drug extracts persisted for a longer time than the standard drug, validating its comparable and sustained analgesic effect.
    Keywords Saraca asoca ; antinociceptive ; analgesic ; tail immersion ; hot plate ; Pharmacy and materia medica ; RS1-441 ; Medicine ; R ; DOAJ:Pharmacy and materia medica ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Language English
    Publishing date 2013-10-01T00:00:00Z
    Publisher International Research Journal of Pharmacy
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article: Guar gum benzoate nanoparticle reinforced gelatin films for enhanced thermal insulation, mechanical and antimicrobial properties

    Kundu, Sonia / Aalok Basu / Aatrayee Das / Arup Mukherjee / Md. Farooque Abdullah

    Carbohydrate polymers. 2017 Aug. 15, v. 170

    2017  

    Abstract: This work relates to guar gum benzoate self assembly nanoparticles synthesis and nano composite films development with gelatin. Guar gum benzoate was synthesized in a Hofmeister cation guided homogeneous phase reaction. Self assembly polysaccharide ... ...

    Abstract This work relates to guar gum benzoate self assembly nanoparticles synthesis and nano composite films development with gelatin. Guar gum benzoate was synthesized in a Hofmeister cation guided homogeneous phase reaction. Self assembly polysaccharide nanoparticles were prepared in solvent displacement technique. Electron microscopy and DLS study confirmed uniform quasi spherical nanoparticles with ζ-potential − 28.7mV. Nanocomposite films were further developed in gelatin matrix. The film capacity augmenting due to nanoparticles incorporation was noteworthy. Superior barrier properties, reinforcing and thermal insulation effects were observed in films dispersed with 20% w/w nanoparticles. Detailed FTIR studies and thermal analysis confirmed nanoparticles interactions in the film matrix. The nanocomposite film water vapour permeability was at 0.75gmm−1kPa−1h−1, thermal conductivity 0.39Wm−1K−1 and the tensile strength were recorded at 3.87MPa. The final film expressed excellent antimicrobial properties against water born gram negative and gram positive bacteria.
    Keywords antibacterial properties ; cations ; electron microscopy ; films (materials) ; Fourier transform infrared spectroscopy ; gelatin ; Gram-positive bacteria ; guar gum ; insulating materials ; nanocomposites ; nanoparticles ; permeability ; solvents ; tensile strength ; thermal analysis ; thermal conductivity ; water vapor ; zeta potential
    Language English
    Dates of publication 2017-0815
    Size p. 89-98.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 1501516-6
    ISSN 1879-1344 ; 0144-8617
    ISSN (online) 1879-1344
    ISSN 0144-8617
    DOI 10.1016/j.carbpol.2017.04.056
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  7. Article ; Online: Quantitative analysis of Glycyrrhizic acid from a polyherbal preparation using liquid chromatographic technique

    Amit K De / Sriparna Datta / Arup Mukherjee

    Journal of Advanced Pharmaceutical Technology & Research, Vol 3, Iss 4, Pp 210-

    2012  Volume 215

    Abstract: Glycyrrhizic acid has been used in Indian traditional medicine for ages. It is obtained from the root extract of Glycyrrhizaglabra. There is seasonal variation of Glycyrrhizic acid content in the roots of the plant. So a proper method for quantification ... ...

    Abstract Glycyrrhizic acid has been used in Indian traditional medicine for ages. It is obtained from the root extract of Glycyrrhizaglabra. There is seasonal variation of Glycyrrhizic acid content in the roots of the plant. So a proper method for quantification of the same is necessary from the polyherbal preparation available in the market. A simple, rapid, sensitive and specific reverse phase high performance liquid chromatographic method have been developed for the quantitative estimation of glycyrrhizic acid from polyherbal preparation containing aqueous root extract of Glycyrrhizaglabra using a photodiode array detector. The identity confirmation was carried out using mass spectrometry. Baseline resolution of the glycyrrhizic acid peak was achieved on a reverse phase C18 column (125 mm × 4.0 mm, 5 μ) using an isocratic mobile phase consisting of 5.3 mM phosphate buffer and acetonitrile in the ratio 65:35 v/v. Chromatograms were monitored at 252 nm.5.3 mM phosphate buffer was replaced with 0.5mM ammonium acetate buffer in the mobile phase when MS detector was used. The method was found to be linear in the concentration range of 12.4 to124 μg/ml with a correlation co-efficient of 0.999. The limit of detection and the limit of quantitation were 3.08 μg/ml and 10.27 μg/ml respectively. The average recovery from three spike levels was 99.93 ± 0.26%. Identity confirmation of the chromatographic peak was achieved by electrospray ionization mass spectrometry and similar molecular ion peak was obtained for both sample and standard. The developed method is suitable for the routine analysis, stability testing and assay of glycyrrhizic acid from polyherbal preparations containing aqueous extracts of Glycyrrhizaglabra.
    Keywords Glycyrrhizaglabra ; Glycyrrhizic acid ; LC-DAD ; LC-MS/MS ; Medicine ; R ; Pharmacy and materia medica ; RS1-441
    Subject code 540
    Publishing date 2012-01-01T00:00:00Z
    Publisher Medknow Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article: Edible nano-bio-composite film cargo device for food packaging applications

    Basu, Aalok / Arup Mukherjee / Asim Halder / Md Farooque Abdullah / Santanu Sana / Sonia Kundu / Sriparna Datta

    Food packaging and shelf life. 2017 Mar., v. 11

    2017  

    Abstract: This work is meant to design newer nano-bio-composite films for food packaging applications. Polylactide nanoparticles non-covalent interaction in chitosan matrix was carefully studied and used further to develop uniform nano-bio-composite films. ... ...

    Abstract This work is meant to design newer nano-bio-composite films for food packaging applications. Polylactide nanoparticles non-covalent interaction in chitosan matrix was carefully studied and used further to develop uniform nano-bio-composite films. Environmentally benign materials and processes were applied throughout for an intended application in packaging of edibles. Nanoparticles array laden in polysaccharide films served as cargo loaders for active molecules. Quercetin, a bioflavonoid, ubiquitous in many plant species was used as model cargo molecule. Sustained quercetin release imparted a synchronized anti-microbial and antioxidant properties in finished packaging films. Microstructures when examined in FESEM and AFM, suggested nanoparticles homogenous dispersion throughout the film matrix. Film surface RMS roughness in tapping mode AFM experiment was recorded at 1.63±0.23nm which typically represented conditions for microbial deterrence. Control chitosan film radical scavenging capacity was 5.8% in DPPH assay while that was recorded at 23.5% in new active packaging films.
    Keywords 2,2-diphenyl-1-picrylhydrazyl ; active food packaging ; antioxidant activity ; chitosan ; microstructure ; models ; nanoparticles ; packaging films ; polylactic acid ; quercetin ; roughness ; scanning electron microscopy ; shelf life
    Language English
    Dates of publication 2017-03
    Size p. 98-105.
    Publishing place Elsevier Ltd
    Document type Article
    ISSN 2214-2894
    DOI 10.1016/j.fpsl.2017.01.011
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  9. Article: Pharmacokinetic evaluation of testosterone-loaded nanocapsules in rats

    Jana, Sougata / Amit Kumar Nayak / Anusuya Gangopadhaya / Arup Mukherjee / Benoy Brata Bhowmik

    International journal of biological macromolecules. 2015 Jan., v. 72

    2015  

    Abstract: In the present work, testosterone-loaded alginate nanocapsules were prepared by in situ nanoemulsification-polymer cross-linking method. Drug loading, particle size (diameter), polydispersity index and zeta potential of these alginate nanocapsules were ... ...

    Abstract In the present work, testosterone-loaded alginate nanocapsules were prepared by in situ nanoemulsification-polymer cross-linking method. Drug loading, particle size (diameter), polydispersity index and zeta potential of these alginate nanocapsules were measured 30.22±1.90%, 34.53±1.72nm, 0.22±0.04 and −5mV, respectively. The pharmacokinetic evaluation of these nanocapsules was also performed in female Sprague Dawley rats. Cmax, Tmax and AUC0–24 vales were estimated 38.63ng/ml, 2h and 317.93ngml−1h−1, respectively. The pharmacokinetic result of testosterone-loaded alginate nanocapsules indicates better bioavailability in comparison with pure testosterone and commercial testosterone injection.
    Keywords bioavailability ; crosslinking ; drugs ; females ; nanocapsules ; particle size ; pharmacokinetics ; rats ; testosterone ; zeta potential
    Language English
    Dates of publication 2015-01
    Size p. 28-30.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2014.08.001
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Cationic guar gum orchestrated environmental synthesis for silver nano-bio-composite films

    Abdullah, Md Farooque / Arup Mukherjee / Sreyasree Basu / Sumanta Kumar Ghosh

    Carbohydrate polymers. 2015 Dec. 10, v. 134

    2015  

    Abstract: This work is meant for environmentally friendly synthesis and functional evaluation of silver nanoparticles in a newer cationic guar biopolymer (GGAA). Assembly of molecules in lower size range (∼10nm) was attained in a biopolymer entrapped bottom–up ... ...

    Abstract This work is meant for environmentally friendly synthesis and functional evaluation of silver nanoparticles in a newer cationic guar biopolymer (GGAA). Assembly of molecules in lower size range (∼10nm) was attained in a biopolymer entrapped bottom–up synthesis. Guar gum is a filming biopolymer. Nanoparticles encaged in cationic guar (GGAgnC) were preserved as films for months without any significant effect on particle size, distribution or plasmonic intensity. The new nano-bio-composite and films were characterized fully in FTIR, XRD, SEM and TEM studies. Silver nanoparticles induced surface water repellency remarkably and lowered moisture permeability. GGAgnC film water contact angle was recorded as 115° while, that in case of GGAA was 59°. GGAgnC expressed intense antimicrobial activity when tested against a range of microorganisms. Immobilized silver nanoparticles in GGAA can feasibly be used as filming microbicidals suitable for textiles, packaging and biomedical device applications.
    Keywords anti-infective properties ; biopolymers ; contact angle ; fabrics ; Fourier transform infrared spectroscopy ; guar gum ; medical equipment ; microorganisms ; nanoparticles ; nanosilver ; packaging ; particle size ; permeability ; scanning electron microscopy ; silver ; surface water ; transmission electron microscopy ; X-ray diffraction
    Language English
    Dates of publication 2015-1210
    Size p. 30-37.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 1501516-6
    ISSN 1879-1344 ; 0144-8617
    ISSN (online) 1879-1344
    ISSN 0144-8617
    DOI 10.1016/j.carbpol.2015.06.029
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