Chemistry and Materials Science

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  1. Research

    1,3-Dipolar [3 + 2] cycloaddition reactions of N,C,C-trisubstituted nitrones with ring-acceptor methylenecyclopropanes: a computational study

    1,3-Dipolar [3 + 2]-cycloaddition of nitrones to the carbon–carbon double bonds of methylenecyclopropanes yields a mixture of regioisomeric 4- and 5-isoxazolidines. The mechanisms of the reactions of N,C,C-trisub...

    Mary Mensah, Evans Elikem Amepetey, Richard Tia and Evans Adei

    SpringerPlus 2016 5:2072

    Published on: 5 December 2016

  2. Short report

    Reaction of hydroxyl-quinoline with pentafluoropyridin

    Reaction of pentafluoropyridine with 2 or 8-hydroxyl-quinoline under basic conditions in acetonitrile gives 4-oxy quinoline 2,3,5,6-tetrafluoropyridine derivatives in good yields. All the compounds were charac...

    Khalil Beyki, Malek Taher Maghsoodlou and Reza Heydari

    SpringerPlus 2016 5:1996

    Published on: 22 November 2016

  3. Short report

    Synthesis of 2-tetrafluoropyridyl-4,5-disubstituted 1,2,3-triazoles

    By cycloaddition reaction of sodium azide with chalcone in the presence of CuO as a catalyst in DMF a 1,2,3-triazole are prepared in reaction with pentafluoropyridine to give 2-(tetrafluoropyridin-4-yl)-1,2,3-...

    Khalil Beyki, Malek Taher Maghsoodlou and Reza Heydari

    SpringerPlus 2016 5:1961

    Published on: 11 November 2016

  4. Research

    Epitaxial growth of BaHfO3 buffer layer and its structure degeneration analysed by Raman spectrum

    BaHfO3 (BHO) has been proposed as a new cap layer material for YBa2Cu3O7−δ (YBCO) coated conductors. Highly c-axis oriented BHO cap layer has been deposited on ion-beam assisted deposition-MgO buffered Hastelloy ...

    Jiahui Zheng, Feng Fan, Xiangfa Yan, Yuming Lu, Yu Liang, Chuanyi Bai, Zhiyong Liu, Yanqun Guo and Chuanbing Cai

    SpringerPlus 2016 5:1908

    Published on: 3 November 2016

  5. Research

    Bio-ethanol production from wet coffee processing waste in Ethiopia

    Large amounts of coffee residues are generated from coffee processing plants in Ethiopia. These residues are toxic and possess serious environmental problems following the direct discharge into the nearby wate...

    Asrat Gebremariam Woldesenbet, Belay Woldeyes and Bhagwan Singh Chandravanshi

    SpringerPlus 2016 5:1903

    Published on: 2 November 2016

  6. Research

    Electro-activation of potassium acetate, potassium citrate and calcium lactate: impact on solution acidity, Redox potential, vibrational properties of Raman spectra and antibacterial activity on E. coli O157:H7 at ambient temperature

    To study the electro-activation of potassium acetate, potassium citrate and calcium lactate aqueous solutions and to evaluate their antimicrobial effect against E. coli O157:H7 at ambient temperature.

    Viacheslav Liato, Steve Labrie and Mohammed Aïder

    SpringerPlus 2016 5:1760

    Published on: 10 October 2016

  7. Research

    Antibacterial and antioxidant activity of Portuguese Lavandula luisieri (Rozeira) Rivas-Martinez and its relation with their chemical composition

    Lavandula luisieri (Rozeira) Rivas-Martinez is an endemic aromatic Labiatae the Iberian Peninsula, common in semi-arid regions of southern Portugal and southwestern Spain, that produces a...

    Sofia Pombal, Cleide F. Rodrigues, João P. Araújo, Pedro M. Rocha, Jesus M. Rodilla, David Diez, Ángela P. Granja, Arlindo C. Gomes and Lúcia A. Silva

    SpringerPlus 2016 5:1711

    Published on: 4 October 2016

  8. Research

    Distance-based topological polynomials and indices of friendship graphs

    Drugs and chemical compounds are often modeled as graphs in which the each vertex of the graph expresses an atom of molecule and covalent bounds between atoms are represented by the edges between their corresp...

    Wei Gao, Mohammad Reza Farahani, Muhammad Imran and M. R. Rajesh Kanna

    SpringerPlus 2016 5:1563

    Published on: 15 September 2016

  9. Research

    Improvement of vibrodamping properties of polyvinyl acetate–graphite composites by electron beam processing of the filler

    The effect of electron beam processing (energy 900 keV, absorbed dose in the range from 25 to 600 kGy) of graphite upon the efficiency of its use as a filler in polyvinyl acetate (PVA) based vibrodamping compo...

    Sergey V. Mjakin, Maxim M. Sychov, Nadezhda B. Sheiko, Larisa L. Ezhenkova, Alexander G. Rodionov and Inna V. Vasiljeva

    SpringerPlus 2016 5:1539

    Published on: 13 September 2016

  10. Research

    Halogen-directed drug design for Alzheimer’s disease: a combined density functional and molecular docking study

    A series of halogen-directed donepezil drugs has been designed to inhibit acetyl cholinesterase (AChE). Density Functional theory (DFT) has been employed to optimize the chair as well as boat conformers of the...

    Adhip Rahman, Mohammad Tuhin Ali, Mohammad Mahfuz Ali Khan Shawan, Mohammed Golam Sarwar, Mohammad A. K. Khan and Mohammad A. Halim

    SpringerPlus 2016 5:1346

    Published on: 12 August 2016

  11. Research

    The usability of ark clam shell (Anadara granosa) as calcium precursor to produce hydroxyapatite nanoparticle via wet chemical precipitate method in various sintering temperature

    This paper reported the uses of ark clam shell calcium precursor in order to form hydroxyapatite (HA) via the wet chemical precipitation method. The main objective of this research is to acquire better underst...

    Mohammad Zulhasif Ahmad Khiri, Khamirul Amin Matori, Norhazlin Zainuddin, Che Azurahanim Che Abdullah, Zarifah Nadakkavil Alassan, Nur Fadilah Baharuddin and Mohd Hafiz Mohd Zaid

    SpringerPlus 2016 5:1206

    Published on: 29 July 2016

  12. Research

    Spectrophotometric determination of Cu(II) in soil and vegetable samples collected from Abraha Atsbeha, Tigray, Ethiopia using heterocyclic thiosemicarbazone

    Two selective and sensitive reagents, 2-acetylpyridine thiosemicarbazone (2-APT) and 3-acetylpyridine thiosemicarbazone (3-APT) were used for the spectrophotometric determination of Cu(II). Both reagents gave ...

    Daniel Admasu, Desam Nagarjuna Reddy and Kebede Nigussie Mekonnen

    SpringerPlus 2016 5:1169

    Published on: 26 July 2016

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