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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Alshehri, Saad M. Ahamad, Tansir |
| Description | Country affiliation: Saudi Arabia Author Affiliation: Ahamad T ( Department of Chemistry, King Saud University, Riyadh, Saudi Arabia.) |
| Abstract | Phenylurea-formaldehyde polymer (PUF) was synthesized via polycondensation of phenylurea and formaldehyde in basic medium, its polymer-metal complexes [PUF-M(II)] were prepared with Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) ions. PUF and PUF-M(II) were characterized with magnetic moment measurements, elemental and spectral (UV-visible, FTIR, 1H-NMR, 13C-NMR and ESR) analysis. The thermal behaviors of all the synthesized polymers were carried out using thermogravimetric analysis (TGA) and differential thermal analysis (DTA). The thermal data revealed that all of the PUF-M(II) showed higher thermal stabilities than the PUF and also ascribed that the PUF-Cu(II) showed better thermal stability than the other PUF-M(II). The kinetic parameters such as activation energy, pre-exponential factor etc., were evaluated for these polymer metal complexes using Coats-Redfern equation. In addition, the antimicrobial activity of the synthesized polymers was tested against several microorganisms using agar well diffusion methods. Among all of the PUF-M(II), the antimicrobial activity of the PUF-Cu(II) showed the highest zone of inhibition because of its higher stability constant and may be used in biomedical applications. |
| ISSN | 13861425 |
| Volume Number | 96 |
| e-ISSN | 18733557 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2012-10-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Anti-infective Agents Chemical Synthesis Pharmacology Coordination Complexes Formaldehyde Manganese Nylons Phenylurea Compounds Polymers Anti-bacterial Agents Chemistry Antifungal Agents Bacteria Drug Effects Differential Thermal Analysis Electron Spin Resonance Spectroscopy Fungi Kinetics Ligands Magnetic Phenomena Magnetic Resonance Spectroscopy Microbial Sensitivity Tests Spectroscopy, Fourier Transform Infrared Thermogravimetry Journal Article Research Support, Non-u.s. Gov't Discipline Spectroscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Atomic and Molecular Physics, and Optics Analytical Chemistry Instrumentation |
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