American Journal of Physical Chemistry

Volume 5, Issue 2, April 2016

  • A New Mathematical Model for Calculating the Electronic Coupling of a B-DNA Molecule

    Dale J. Igram, Jason W. Ribblett, Eric R. Hedin, Yong S. Joe

    Issue: Volume 5, Issue 2, April 2016
    Pages: 17-25
    Received: 8 February 2016
    Accepted: 15 February 2016
    Published: 9 March 2016
    Abstract: The charge transport properties of DNA have made this molecule very important for use in nanoscale electronics, molecular computing, and biosensoric devices. Early findings have suggested that DNA can behave as a conductor, semiconductor, or an insulator. This variation in electrical behavior is attributed to many factors such as environmental cond... Show More
  • Characteristics of Polymer Concrete from Pumice Stone and Rubber Thread Waste with Polyurethane as Natural Bonding

    Fauzi, Tamrin, Anwar Dharma Sembiring, Ridwan Abdullah Sani

    Issue: Volume 5, Issue 2, April 2016
    Pages: 26-34
    Received: 1 March 2016
    Accepted: 15 March 2016
    Published: 29 March 2016
    Abstract: In this study, the aggregate of polymer concrete is made using pumice stone, sand, solid waste rubber thread, and polyurethane as a binder. Variation of composition of sand and pumice are (1: 1) or (50 g: 50 g); solid waste rubber thread are (0, 2, 4, 6, 8, 10)% of the total weight of sand and pumic; while composition variations of polyurethane are... Show More
  • Influence of Pretreatment with Soda (NaOH) on the Structural Characteristics of Activated Carbon Prepared by Chemical Means with H3PO4 from Rice Bran

    Clément K. Balogoun, Ibrahim Tchakala, Mike Medokponou, Moctar L. Bawa, Dominique C. Sohounhloue

    Issue: Volume 5, Issue 2, April 2016
    Pages: 35-44
    Received: 10 March 2016
    Accepted: 19 March 2016
    Published: 30 March 2016
    Abstract: The purpose of this work is the preparation of best activated carbons from rice bran through carbonization at 500°C preceded by an impregnation in a 25% H3PO4 solution. We carry out the study of the effects of pretreatment with soda and Xp impregnation ratio on characteristics of three series of activated carbons SR0N, SR1N and SR2N corresponding t... Show More