Department of Chemistry

 

Our Vision    Undergraduate Courses    Research     Staff    Publications     Useful Chemistry Links     Opportunities for study and research     Home:School of Maths & Nat Sciences     Home:Univen

Selected Recent Publications

1.                  Mammino L. 1993. "Significance and Perspectives of Applied Quantum Chemistry", Int. J. BioChemiPhysics, 2(1&2), 158-160.

2.                  Drewes, SE and Mashimbye, MJ. 1993. "Flavanoids and triterpenes from Cassine papillosa (Hochst.) Kuntze (CELASTRACEAE) and the absolute  configuration of 11,11-dimethyl-1,3,8,10-tetrahydroxy-9-methoxypeltogynan", Phytochemistry, 32(4), 1041-1044.

3.                  Davidson, DN, Kaye, PT, and Ramaite, IDI. 1993. “Chromone Studies. Part 6. Influence of substituents on the acidity of  2-Carboxychromones”, Journal of  chemical Research (S), 462.

4.                  Stalcup, AM and Agyei, NM. 1994. "Heparin: a chiral mobile-phase additive for capillary zone electrophoresis", Anal. Chem., 66, 3054.

5.                  Mammino, L. 1994. Live Chemistry (the Transformations of Matter). G. D'Anna: Firenze, Italy.

6.                  Mammino, L. 1994. Chemistry in Practice (Laboratory Experiments / Informatics for Chemistry). G. D'Anna: Firenze, Italy.

7.                  Mammino, L. 1994. Laboratory (Experiments and Activities). G. D'Anna: Firenze, Italy.

8.                  Mammino, L. 1994. Industry, Environment, Historical Evolution  (a Complement to the Chemistry Course). G. D'Anna: Firenze, Italy.

9.                  Kaye, PT and Ramaite, IDI. 1994. “Chromone Studies. Part 7. Mass Spectroscopic Analysis of Chromone-derived Polyfunctional Acrylamides”, Journal of Chemical Research (S), 482.

10.              Vijayan, RP. 1994. “Biosorption of trace metals from aqueous solution”, American Chemical Society, I & E Division, 2, p 997. 

11.              Agyei, NM, Gahm, KH, and Stalcup, AM. 1995. "Chiral separations using heparin and dextran sulfate in capillary zone electrophoresis", Anal. Chim. Acta, 307, 185.

12.              Mammino, L. 1995. “Teaching/learning Theoretical Chemistry at Undergraduate Level”, Southern African Journal of Mathematics and Science Education, 2 (1&2), 69-88.

13.              Mammino, L. 1995. Language and Science (a guide to correct wording in the sciences). Società Editrice Internazionale: Torino, Italy.

14.              Kaye, PT and Ramaite, IDI. 1995. “Chromone Studies. Part 8. Dynamic NMR analysis of Rotational Isomerism of Chromone derived Polyfunctional Acrylamides”, Journal of  Chemical Research (S), 78.

15.              van Staden, JF, Makhafola, MA, and de Waal, D. 1996. Applied Spectroscopy, 50, 991-994.

16.              van Staden, JF and Makhafola, MA. 1996. Fresenius J. Anal. Chem., 356, 70-74.

17.              Agyei, NM. 1997. "Capillary zone electrophoretic enantioseparation of racemic antihistamines by dextran sulphates", Analytica, 5(3), 14.

18.              Love, A and Mammino, L. 1997. “Using the Analysis of Errors to Improve Students’ Expression in the Sciences”, Zimbabwe Journal of Educational Research, 9(1), 1-17.

19.              Mammino, L. 1997. Today, Chemistry. G. D’Anna: Firenze, Italy.

20.              Kaye, PT and Ramaite, IDI. 1997. “Chromone Studies. Part 9. Dynamic NMR analysis of Rotational Isomerism in 2-(N, N-dialkylamino)chromones”, Journal of Chemical Research (S),  414.

21.              Agyei, NM. 1998. "Estimation of chloroquine-heparin binding constants by capillary zone electrophoresis", S. Afr. J. Chem., 51(1), 60.

22.              Mammino, L. 1998. “Science Students and the Language Problem: Suggestions for a Systematic Approach”, Zimbabwe Journal of Educational Research, 10(3), 189-209.

23.              Mammino, L. 1998. “Precision in Wording: a Tool to Facilitate the Understanding of Chemistry”, CHEMEDA, the Australian Journal of Chemical Education, 48-50, 30-38.

24.              Mammino, L. 1998. Chemistry Glossary. G. D’Anna: Firenze, Italy.

25.              Clive, DLJ,  He, X, Postema, MHD, and Mashimbye, MJ. 1998. "A synthetic route from D‑glucose to D‑myo‑inositol‑1,4,5‑tris(dihydrogenphosphate):  use of an unusual ene reaction and the Bu2SnCl2/Bu2SnH2 reagent", Tetrahedron Letters, 39, 4231.

26.              Dehmlow, EV, van Ree, T, Jacupovic, J, Take, E, and Künsting, H. 1998. "Notes on activity tests and constituents of two supposed medicinal plants from South Africa, Englerophytum magalismontanum and Diospyros lycioides Desf. subsp. sericea", J Chem Res(S), 252-253.

27.              Dehmlow, EV, van Ree, T, Jacupovic, J, and Guntenhöner, M. 1998. "Note on a novel flavanoid from Cassia and other plants: 2,4-trans-4',7-dihydroxy-4-methoxyflavane", Phytochemistry, 49(6), 1805-1806.

28.              van Staden, JF and Makhafola, MA. 1999. S.A. Journal of Chem., 52(1), 49-54.

29.              Mammino, L. 1999. “The Mathematical Atom”,  Chimica nella Scuola,  4, 197-110 (in Italian).

30.              Drewes, SE, Mashimbye, MJ, and Maumela, MC. 1999. “A Drimane sesquiterpenoid lactone from Warburgia salutaris”, Phytochemistry, 51, 435.

31.              Clive, DLJ,  He, X, Postema, MHD, and Mashimbye, MJ. 1999. “ Formal synthesis of D‑myo‑inositol‑1,4,5‑Tris(dihydrogen phosphate): Cyclization by an Unusual Ene Reaction and Use of the Bu2SnCl2/Bu2SnH2 Reagent for Generating an Equatorial Alcohol", Journal of Organic Chemistry, 64(12), 4397.

32.              Mashimbye, MJ, Maumela, MC, and Drewes, SE. 1999. “ Novel and Bioactive Metabolites of Warburgia salutaris Indigenous to the Northern Province, South Africa.”, Nigerian Journal of Natural Products, 3, 28 – 30.

33.              van Ree, T. 1999. "Computer-assisted idea-generation as a writing support strategy", BSc(Hons) dissertation, Unisa: Pretoria.

34.              Dehmlow, EV, Guntenhöner, M, and van Ree, T. 1999. "A novel alkaloid from Fluggea virosa: 14,15-Epoxynorsecurinine", Phytochemistry, 52(8), 1715-1716.

35.              van Ree, T. 1999. "A chemical profile of the Mutshindudi River, Northern Province", Water Science and Technology, 39(10-11), 357-360. 

36.              Agyei, NM, Strydom, CA, and Potgieter, JH. 2000. "An investigation of phosphate ion adsorption from aqueous solution by fly ash and slag", Cement and Concrete Research, 30(5), 823-826.

37.              Mammino, L. 2000. “Chemical Equations: Balancing and Historical Issues”, Nuova Secondaria, 10, 89-90 (in Italian).

38.              Mammino, L, Mathibeli, N, and Mutambala, G. 2000. “Transition from Secondary School Science to University Science. Some Perceptions of Former Science Teachers in Lesotho”, SAARMSTE (Southern African Association for Research in Mathematics, Science & Technology Education) Journal, 4(1), 78-86.

39.              Mammino, L. 2000. New Chemistry Questions. G. D'Anna: Firenze, Italy.

40.              Mammino, L. 2000. New Chemistry Questions, a teachers’ guide. G. D'Anna: Firenze, Italy.

41.              Mammino, L. 2000. “Rigour as a Pedagogical Tool”, In Seepe, S, and Dowling D (Eds), The Language of  Science. Vyvlia Publishers (South Africa), pp. 52-71.

42.              Mammino, L. 2000. “Educating towards the Language of Science”, In Seepe, S, and Dowling D (Eds), The Language of  Science. Vyvlia Publishers (South Africa), pp. 72-93.

43.              Mammino, L. 2000. “Studying the Details of the Transition from the Mother Tongue to the Second Language”, In Seepe, S, and Dowling D (Eds), The Language of  Science. Vyvlia Publishers (South Africa), pp. 94-101.

44.              Mashimbye, MJ, Raphulu, MC, and Maumela, MC. 2000. “X-Ray structure and C-13 NMR data of chelerythrine acetonate isolated from Xanthoxylum davyi”, Nigerian Journal of Natural Products, 4, 57 – 61.

45.              Dehmlow, EV, Guntenhöner, M, and van Ree, T. 2000. "Über die Isolierung von Sitosterin-(6'-O-acyl)-B-D-glucopyranosiden aus Flacourtia indica and über unerwartete Gelbindungen durch das Triacetat", Z Naturforsch, B, 55b, 333-335. 

46.              Mammino, L. 2000-2001. “Illustration of Basic Chemistry Problems with the Aid of Simple Computer Programs”, Anuario Latinoamericano de Educacion Quimica, XIII, 52-55, (in Spanish).

47.              Mammino, L. 2001. “Physical Quantities and Their Changes. Difficulties and Perceptions by Chemistry Students. SAARMSTE (Southern African Association for Research in Mathematics, Science and Technology Education) Journal, 5, 29-40.

48.              Mammino, L. 2001. “Some Reflections on the Image of Chemistry”, Anales de la Real Sociedad Espanola de Quimica, 97(2), 48-52 (in Spanish).

49.              Mashimbye, MJ, Drewes, SE, Crouch, NR, de Leeuw, BM, and Horn, MM. 2001. “A Phytochemical basis for the potential use of Warburgia salutaris (pepper bark tree) leaves in the place of bark”, South African Journal of Science, 97, 383 - 386.

50.              Mashimbye, MJ, Obi, CL, Mabogo, DEN, Randima, LP, Mavhungu, NJ, Musie, E, and Bessong, PO. 2001. “Antibacterial activities of Datura stramonium, Zanthoxylum davyi and Securidaca longipediculata against selected bacteria of medical importance”, International Journal of Antimicrobial Agents, 17(1), S125.

51.              Mashimbye, MJ, Obi, CL, Mabogo, DEN, Randima, LP, Mavhungu, NJ, Musie, E, and Bessong, PO. 2001. “Antimicrobial activities of five plants against some medically significant human bacteria”, South African Journal of Science, 97, 1-4.

52.              Khanbabaee, K and van Ree, T. 2001. "Strategies for the synthesis of ellagitannins", Synthesis, (11), 1585-1610.

53.              Khanbabaee, K and van Ree, T. 2001. "Tannins: classification and definition", Natural Product Reports, 18(6), 641-649.

54.              Vijayan, RP. 2001. “Preferential anion exchange intercalation of pyridine carboxylate and touluate isomers in the layered double hydroxide [Li Al2 (OH)6]Cl.H2O, J. Mater. Chem., 11, 3276-3280.

55.              Agyei, NM, Strydom, CA, and Potgieter, JH. 2002. "The removal of phosphate ions from aqueous solution by fly ash, slag, ordinary Portland cement and related blends", Cement and Concrete Research, 32(12), 1889-1897.

56.              Stefan, R-I, Makhafola, MA, and van Staden, JF. 2002. Prep. Biochem. & Biotechnol., 32(2), 135-142.

57.              Mammino, L. 2002. “The Four Elements Theory: an Operational Model of Matter “, Chimica nella Scuola, 2, 43-47 (in Italian).

58.              Mammino, L. 2002. “The Challenges of Green Chemistry Education” In  Tundo, P and Mammino, L, (Eds.), Green Chemistry in Africa, IUPAC & INCA: Venice (Italy), pp 188-208.

59.              Tundo, P and Mammino, L (Eds.). 2002. Green Chemistry in Africa, IUPAC & INCA: Venice (Italy).

60.              Mashimbye, MJ and Mudau, EK. 2002. Flavanoids: their structural features, biosynthesis, bioactivity and indigenous plants containing flavanoids, In Mammino, L and Tundo, P (Ed), "Green Chemistry in Africa", IUPAC/INCA: Venice, 2002. ISBN: 88 88214 07 0.

61.              van Ree, T. 2002. "Catalysis for green chemistry", In Mammino, L. and Tundo, P. (Ed), "Green Chemistry in Africa", IUPAC/INCA: Venice. ISBN: 88 88214 07 0.

62.              Agyei, NM, Potgieter, JH, and Strydom, CA. 2003. "A novel application of building materials in pre-treatment of water and wastewater", Technical Note submitted to Water SA.

63.              Mammino, L. 2003. “Addressing the Abstractness Perception in Theoretical Chemistry Courses”, Journal of Molecular Structure (TheocheM) - Special Issue: a selection of Papers from the Proceedings of the XXVII International Congress of Theoretical Chemists of Latin Expression, Toulouse, France, September 3-8, 2001), 621, 27-36.

64.              Krohn, K, Gehle, D, Kamp, O, and van Ree, T, “Highly deoxygenated sugars II. Synthesis of chiral cyclopentenes via novel carbocyclization of C-4 branched deoxysugars”, J Carbohydr Chem, 2003, 22(6), 377-383.

65.              Mashimbye, MJ, Mudau, EK, and Nekhavhambe, TJ. 2003. “Flavanoids, steroids and pentacyclic triterpenes from Helichrysum panduratum O Hoffm var transvaalense (COMPOSITAE)” (In preparation).

66.              Mashimbye, MJ, Wadiwala, E, and Nyamandi, GJ. 2003. "Essential oils from bark and leaves of Warburgia salutaris (Bertol.f.) Chiov CANELLACEAE), a comparative analysis" (In preparation).

67.              Manenzhe, NJ, Potgieter, N, and van Ree, T, “Composition and antimicrobial activities of volatile components of Lippia javanica”, Phytochemistry, 2004, 65(16), 2333-2336.