| The
Humic Acid Research Group is headed by Dr Geoff Davies & Dr Elham Ghabbour. In Winter, 1996, eight undergraduates volunteered to assist in the many experiments that needed to be done. In Spring, 1996 they started their training by learning how to isolate and purify HAs. They were then able to conduct individual projects with the materials they had isolated themselves. |
Humic Substances Research Group 2004
This
is how strong emphasis on undergraduate research in the Humic Acids
Group originated. Each year, more undergraduates join and work with us
until their senior thesis. |
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REFEREED RESEARCH PUBLICATIONS 1.
“Adsorption Mechanisms of Nicotine on Humic Acid and a Clay Humic
Acid Complex,” by A.H. Khairy, H.H. Baghdadi and E. A. Ghabbour, Z.
Pflanzenernahr. Bodenk., 153, 33-38 (1990). 2.
“Isolation of Humic Acid from the Brown Alga Pilayella
littoralis,” by E. A.Ghabbour, A. H. Khairy, D. P. Cheney, V. Gross,
G. Davies, T. R. Gilbert and X. Zhang, J.
Appl. Phycol., 6 , 459-468 (1994). 3.
“Humic Acids are Versatile Natural Polymers,” by G. Davies, E.
A. Ghabbour, S. A. Jansen and J. Varnum, In: Advanced
New Materials and Emerging New Technologies, P. N. Prasad, J. E. Mark
and T. J. Fai, Eds., Plenum, New York, p. 677-685 (1995). 4.
“Adsorption of Aqueous Nucleobases, Nucleosides, and Nucleotides
on Compost-Derived Humic Acid. 1. Naturally Occurring Pyrimidines.” by
A. H. Khairy, G. Davies, E. A. Ghabbour, and H. Z. Ibrahim, J.
Phys. Chem., 100, 2410-2416 (1996). 5.
“Adsorption of Aqueous Nucleobases, Nucleosides, and Nucleotides
on Compost- Derived Humic Acid. 2. Naturally Occurring Purines.” by A.
H. Khairy, G. Davies, E. A. Ghabbour, and H. Z. Ibrahim, J.
Phys. Chem., 100, 2417-2423 (1996). 6.
“Structural Modeling in Humic Acids,” by S. A. Jansen, M.
Malaty, S. Nwabara, E. Johnson, E. A. Ghabbour, G. Davies and J. M. Varnum
, Mater. Sci. Engineer., C 4: 175-179 (1996). 7.
“The Role of Metal Complexation in the Solubility and Stability
of Humic Acid,” by S. Jansen, M. Paciolla, E. A. Ghabbour, G. Davies,
and J. M. Varnum, Mater. Sci.
Engineer., C 4: 181-187 (1996). 8.
“Isolation of Humic Acid from the Brown Algae Ascophyllum
nodosum, Fucus Versiculosus, Laminaria saccharina and the marine
angiosperm Zostera marina,” by
A. Radwan, G. Davies, A. Fataftah, E. A. Ghabbour, S. A. Jansen and R. J.
Willey, J. Appl. Phycol., 8: 553-562 (1997). 9.
“Supercritical Fluid CO2 Extraction Accelerates
Isolation of Humic Acid from the Live Alga Pilayella
littoralis,” by A. Radwan, R. J. Willey, G. Davies, A. Fataftah, E.
A.Ghabbour and S. A. Jansen, J. Appl.
Phycol., 8: 545-551 (1997). 10.
“A Site Creation Model for Adsorption of Aqueous Nucleobases,
Nucleosides and Nucleotides on Compost-derived Humic Acid,” by G.
Davies, E. A. Ghabbour, A. H. Khairy and H. Z. Ibrahim, J.
Phys. Chem., 101B, 3228-3239 (1997). 11.
“Isolation of Humic Acid from the Terrestrial Plant Brugmansia
sanguinea,” by G. Davies, A. Fataftah, E. A. Ghabbour, S. A. Jansen,
A. Radwan and R. F. Raffauf, Sci.
Total Environ., 201, 79-87 (1997). 12.
“Models for Adsorption on Humic Acids,” by G. Davies, E. A.
Ghabbour, A. H. Khairy, and H. Z. Ibrahim. In: The
Role of Humic Substances in the Ecosystems and in Environmental Protection,
J. Drozd, S. S. Gonet, N. Senesi and J. Weber (eds.), Polish Society of
Humic Substances, Wroclaw, Poland, 1997 (published 1998), pp. 36-42. 13.
“Aerogels: New High Surface Area Forms of Solid Humic Acids,”
by G. Davies, A. Fataftah, A. Radwan, R. J. Willey, E. A.Ghabbour and S.
A. Jansen. In: The Role of Humic
Substances in the Ecosystems and in Environmental Protection, J. Drozd,
S. S. Gonet, N. Senesi and J. Weber (eds.), Polish Society of Humic
Substances, Wroclaw, Poland, 1998, pp. 85-90. 14.
“Isolation of Humic Acids from Live Plants,” by G. Davies,
A. Fataftah, A. Radwan, R. J. Willey, E. A. Ghabbour and S. A. Jansen. In:
The Role of Humic Substances in the
Ecosystems and in Environmental Protection, J. Drozd, S. S. Gonet, N.
Senesi and J. Weber (eds.), Polish Society of Humic Substances, Wroclaw,
Poland, 1998, pp. 567-572. 15.
“Ash and Metal Free Humic Acids,” by G.Davies, A. Fataftah,
A. Cherkasskiy, A. Radwan, S A. Jansen, M. Paciolla and E. A.
Ghabbour, In: The
Role of Humic Substances in the Ecosystems and in Environmental Protection,
J. Drozd, S. S. Gonet, N. Senesi and J. Weber (eds.), Polish Society of
Humic Substances, Wroclaw, Poland, 1998, pp. 717-722. 16.
“Rapid Supercritical Fluid Extraction of Humic Acids,” by A.
Radwan, R. J. Willey, G. Davies, S. A. Jansen and E. A. Ghabbour,
In: The Role of Humic Substances
in the Ecosystems and in Environmental Protection, J. Drozd, S. S.
Gonet, N. Senesi and J. Weber (eds.), Polish Society of Humic Substances,
Wroclaw, Poland, 1998, pp. 91-96. 17.
“Metal Uptake by “Metal Free” Humic Acid,” by J. M. Varnum,
S. Kolla, M. D. Paciolla, L. T. Sein, Jr., S. Nwabara, P. Kim, A.
Fataftah, G. Davies, A. Smith, E. A. Ghabbour and S. A. Jansen. In: The
Role of Humic Substances in the Ecosystems and in Environmental Protection,
J. Drozd, S. S. Gonet, N. Senesi and J. Weber (eds.), Polish Society of
Humic Substances, Wroclaw, Poland, 1998, pp. 741-746. 18.
“Conformational Modelling of a Proposed Building Block of
Humic Acid: Searching Chirally Undefined Conformational Space,” by L. T.
Sein, Jr., S. Kolla, J. M. Varnum, G. Davies, S. A. Jansen, M. Malaty and
E. A. Ghabbour. In: The Role of
Humic Substances in the Ecosystems and in Environmental Protection, J.
Drozd, S. S. Gonet, N. Senesi and J. Weber (eds.), Polish Society of Humic
Substances, Wroclaw, Poland, 1998, pp. 73-77. 19.
“Distribution of Polysaccharides in Humic Acids Derived from
Plant Sources,” by S. A. Jansen, S. Kolla, L. T. Sein, Jr., M. D.
Paciolla, A. Radwan, G. Davies, J. M. Varnum and E. A. Ghabbour. In: The
Role of Humic Substances in the Ecosystems and in Environmental Protection,
J. Drozd, S. S. Gonet, N. Senesi and J. Weber (eds.), Polish Society of
Humic Substances, Wroclaw, Poland, 1998, pp. 157-162. 20.
“Adsorption of Aqueous Nucleobases, Nucleosides and Nucleotides
on Humic Acids. 3. Adsorption of Uracil, Uridine and
Uridine-5’-Monophosphate on a German Peat-derived Humic Acid and its
Tightly Bound Mercury(II) Form,” by E. A. Ghabbour, G. Davies, A.
Fataftah, N. K. Ghali, M. E. Goodwillie, S.
A. Jansen, and N. A. Smith, J. Phys.
Chem., 101B, 8468-8476 (1997). 21.
“Tight Metal Binding by Humic Acids, and its Role in
Biomineralisation” by G. Davies, A. Fataftah, A. Cherkasskiy, E. A.
Ghabbour, S. A. Jansen, S. Kolla, M. D. Paciolla, L. T. Sein, Jr., W.
Buermann, M. Balasubramanian, J. Budnick and B. Xing, J.
Chem. Soc.Dalton., 4047-4060 (1997). 22.
“Humic Acid Gel Drying with Supercritical CO2,” by
R. J. Willey, A. Radwan, M. E. Vozzella, A. Fataftah, E. A. Ghabbour and
G. Davies, J. Non-Cryst. Solids, 225, 30-35 (1998). 23.
Humic Substances: Structures,
Properties and Uses, G. Davies and E. A. Ghabbour (eds.), Royal
Society of Chemistry, Cambridge, 1998. 24.
“Adsorption of a Plant and a Soil Derived Humic Acid on the
Common Clay Kaolinite,” by E. A. Ghabbour, G. Davies, K. O’Donaughy,
T. L. Smith and M. E. Goodwillie, in Humic
Substances: Structures, Properties and Uses, G. Davies and E. A.
Ghabbour (eds.), Royal Society of Chemistry, Cambridge, 1998, pp. 185-194. 25.
“Structure and Elemental Composition of Humic Acids: Comparison
between Solid-State 13C NMR and Chemical Analysis,” by J.
Mao, W. Hu, K. Schmidt-Rohr, G. Davies, E. A. Ghabbour and B. Xing, in Humic
Substances: Structures, Properties and Uses, G. Davies and E. A.
Ghabbour (eds.), Royal Society of Chemistry, Cambridge, 1998, pp.. 79-90. 26.
“Generation of Free Radicals by HA: Implications for Biological
Activity,” by M. D. Paciolla, S. Kolla, L. T. Sein, Jr., J. M. Varnum,
D. L. Malfara, G. Davies. E. A. Ghabbour and S. A. Jansen, in Humic
Substances: Structures, Properties and Uses, G. Davies and E. A.
Ghabbour (eds.), Royal Society of Chemistry, Cambridge, 1998, pp 203-214. 27.
“Adsorption of Uracil on Copper(II)-Loaded Peat and Soil Derived
Humic Acids” by G. Davies, E. A. Ghabbour and N. A. Smith, Environment
and Society Journal (Egyptian
Chemistry Administration), 2, 385-388, 1999. 28.
“Generation of Hydroxyl Radicals from Metal-Loaded Humic
Acids,” by M. D. Paciolla, G. Davies, E. A. Ghabbour and S. A. Jansen, Environ.
Sci. Technol., 33, 1814-1818 (1999), see correction 34,
p. 728 (2000). 29.
“The Effect of Temperature on Tight Metal Binding by Peat and
Soil Derived Solid Humic Acids,” by G. Davies, E. A. Ghabbour, N. K.
Ghali and M. D. Mulligan, ACS
Environ. Chem. Preprints, 39, 33-35 (1999). 30.
“Isolation of Humic Acids from the Water Hyacinth, Eichhornia
crassipes, by E. A. Ghabbour, G. Davies, Y. -Y. Lam, J. Mao and B.
Xing, ACS Environ. Chem. Preprints,
39, 225-227 (1999). 31.
“Understanding Life After Death,” by G. Davies and E. A.
Ghabbour, Chem. & Industry, 7 June 1999, 426-430. 32.
Understanding Humic
Substances: Advanced Methods, Properties and Applications,
E. A. Ghabbour and G. Davies (eds.),
Royal Society of Chemistry, Cambridge, 1999. 33.
“Evaluation of Different Solid-State 13C NMR
Techniques for Characterizing Humic Acids” B. Xing, J. Mao, W. -G. Hu,
K. Schmidt-Rohr, G. Davies and E. A. Ghabbour, in: Understanding Humic Substances: Advanced Methods, Properties and
Applications, E.
A. Ghabbour and G. Davies (eds.), Royal Society of Chemistry, Cambridge,
1999, p. 49. 34.
“Quantitative Characterization of Humic Acids Solid-State 13C
NMR” J. Mao, W.-G. Hu, K. Schmidt-Rohr, G. Davies, E. A. Ghabbour and B.
Xing, Soil
Sci. Amer. J., 64, 873-884 (2000). 35.
Humic Substances: Versatile
Components of Plants, Soil and Water, E. A. Ghabbour and G. Davies,
eds., Royal Society of Chemistry, Cambridge, 2000. 36.
“Supercritical CO2 Drying of Peat and Soil Derived
Humic Acid Gels,” by R. J. Willey, M. E. Vozzella, E. A. Ghabbour and G.
Davies, in “Understanding and Managing Organic Matter in Soil,
Sediments and Water”, R.S. Swift and K.M. Spark, eds., International
Humic Substances Society, Adelaide, 2001, pp. 47-52. 37.
“Adsorption of Nucleic Acid Constituents on Metal-loaded Solid
Peat and Soil Derived Humic Acids”, E. A. Ghabbour, G. Davies, R. A.
Dunfee, N. A. Smith and M. E. Vozzella, Canadian
Journal of Soil Science, , 81,
309-316, 2001. 38.
“Tight Metal Binding by Peat and Soil Derived Humic Acids,” G.
Davies. E. A. Ghabbour, N. K. Ghali and M. D. Mulligan, Canadian
Journal of Soil Science, 81,
331-336, 2001. 39.
“Tight Metal Binding by Solid Peat and Soil Derived Humic
Acids,” by G. Davies, E. A. Ghabbour, A. Fataftah and A. Cherkasskiy, in
“Humic Substances and Chemical Contaminants,” by C.E. Clapp,
M.H.B. Hayes, N. Senesi, P.R. Bloom and P.M. Jardine, eds., Soil Science Society of America, 2001, pp. 371-395. 40.
“Humic Acids: Marvelous Products of Soil Chemistry” by G.
Davies, E. A. Ghabbour and C. Steelink, J.
Chem. Edu., 78, 1609-1614, 2001 – Cover Feature. 41.
“Suitability of Different 13C Solid-state NMR
Techniques in the Characterization of Humic Acids” by Jingdong Mao,
Weiguo Hu, Guangwei Ding, Klaus Schmidt-Rohr, Geoffrey Davies, Elham A.
Ghabbour, and Baoshan Xing, Internat. J.
Environ. Anal. Chem., in press. 42.
“Interactions of Humic Acids with Clays and Minerals. I.
Kaolinite,” by E. A. Ghabbour, G. Davies, K. O’Donaughy, T. L. Smith
and M. E. Goodwillie, submitted to J.
Phys. Chem. MEETINGS
OF PROFESSIONAL SOCIETIES and
presentations 1.
“Isolation of Humic Acid from Alga,” by D. P. Cheney, V. Gross,
G. Davies, E. A.Ghabbour, A. H. Khairy, T. R. Gilbert and X. Zhang,
Barnett Institute Science Day, March, 1994. 2.
“Adsorption of Nucleic Acid Constituents on Compost Humic
Acid,” by A. H. Khairy, G. Davies, E. A. Ghabbour and H. Z. Ibrahim,
Barnett Institute Science Day, March, 1994. 3.
"Alga as Monitors of Heavy Metals in Seawater," by D. P.
Cheney, G. Davies, E. A. Ghabbour, and T. R. Gilbert, Barnett Institute
Science Day, March, 1994. 4.
“Adsorption of Nucleobases, Nucleosides, and Nucleotides on
Compost-Derived Humic Acid. 1. Naturally Occurring Pyrimidines.” by A.
H. Khairy, G. Davies, E. A. Ghabbour, and H. Z. Ibrahim, Barnett Institute
Science Day, March, 1995. 5.
“Isolation of Humic Acid from Live Plants,” by G. Davies, E.
A.Ghabbour, D. P. Cheney, and T. R. Gilbert, Barnett Institute Science
Day, March, 1995. 6.
“Advances in the Chemistry of Humic Acids,” by G. Davies and E.
Ghabbour, Georg-August Universitat, Gottingen, Germany, September, 1995. 7.
“Models for Adsorption on Humic Acids,” by G. Davies, E. A.
Ghabbour, A. H. Khairy, and H. Z. Ibrahim 8th International Humic
Substances Society Meeting, Wroclaw, Poland, September 1996. 8. “Aerogels: New High
Surface Area Forms of Solid Humic Acids,” by G. Davies, A. Fataftah, A.
Radwan, R. J. Willey, E. A.Ghabbour and S. A. Jansen, 8th International
Humic Substances Society Meeting, Wroclaw, Poland, September 1996. 9.
“Isolation of Humic Acids from Live Plants,” by G. Davies, A.
Fataftah, A. Radwan, R. J. Willey, E. A. Ghabbour and S. A. Jansen,
Presented at the 8th International Humic Substances Society National
Meeting, Wroclaw, Poland, September, 1996. 10.
“Ash and Metal Free Humic Acids,” by G.Davies, A. Fataftah, A.
Cherkasskiy, A. Radwan, S A. Jansen, M. Paciolla and E. A.
Ghabbour, 8th International
Humic Substances Society Meeting, Wroclaw, Poland, September, 1996. 11.
“Rapid Supercritical Fluid Extraction of Humic Acids,” by A.
Radwan, R. J. Willey, G. Davies, S. A. Jansen and E. A. Ghabbour,
8th International Humic Substances Society Meeting, Wroclaw, Poland,
September, 1996. 12.
“Metal Uptake by “Metal Free” Humic Acid,” by J. M.
Varnum, S. Kolla, M. D. Paciolla, L. T. Sein, Jr., S. Nwabara, P. Kim, A.
Fataftah, G. Davies, A. Smith, E. A. Ghabbour and S. A. Jansen, 8th
International Humic Substances Society Meeting, Wroclaw, Poland,
September, 1996. 13.
“Conformational
Modelling of a Proposed Building Block of Humic Acid: Searching Chirally
Undefined Conformational Space,” by L. T. Sein, Jr., S. Kolla, J. M.
Varnum, G. Davies, S. A. Jansen, M. Malaty and E. A. Ghabbour, 8th
International Humic Substances Society Meeting, Wroclaw, Poland,
September, 1996. 14.
“Distribution of Polysaccharides in Humic Acids Derived from
Plant Sources,” by S. A. Jansen, S. Kolla, L. T. Sein, Jr., M. D.
Paciolla, A. Radwan, G. Davies, J. M. Varnum and E. A. Ghabbour, 8th
International Humic Substances Society Meeting, Wroclaw, Poland,
September, 1996. 15.
“Properties of Humic Acids from Different Sources.”by G.
Davies, A. Fataftah, E. A. Ghabbour, A. Cherkasskiy, N. K. Ghali, M. E.
Goodwillie, K. O’Donaughy, N. A. Smith, T. L. Smith, and M. E. Vozzella,
Northeastern University: Inauguration Week Research Poster Session,
January, 1997. 16.
“Adventures with Humic
Acids.” by G. Davies, A. Fataftah, E. A. Ghabbour, A. Cherkasskiy, N. K.
Ghali, M. Goodwillie, K. O’Donaughy, N. A. Smith, T. L. Smith, and M. E.
Vozzella, 36th Annual NESACS Undergraduate Research Symposium, Boston, MA.
April, 1997 17.
“Adsorption of Humic Acid from Different Sources on Clay
Minerals. 1: Kaolinite. by G. Davies, E. A. Ghabbour, M. E. Goodwillie, K.
O’Donaughy and T. L. Smith, 27th ACS Northeast Regional Meeting,
Saratoga Springs, New York, June, 1997. 18.
“A Site Creation Model for Adsorption on Humic Acids,” by G.
Davies, E. A. Ghabbour, A. H. Khairy and H. Z. Ibrahim, Northeast Regional
Meeting of the American Chemical Society, Saratoga Springs, New York,
June, 1997. 19.
“Adsorption of Uracil, Uridine and Uridine-5’-monophosphate on
Humic Acids from Different Sources and Their Mercury(II) Loaded Forms,”
by E. A. Ghabbour, G. Davies, A. Fataftah, A. Cherkasskiy, N. K. Ghali, M.
E. Goodwillie, S. A. Jansen, N. A. Smith, and M.
E. Vozzella, Northeast Regional Meeting of the American Chemical Society,
Saratoga Springs, New York, June, 1997. 20.
“An Empirical Formula for Humic Acid,” by S. A. Jansen, L. T.
Sein, Jr., M. D. Paciolla, G. Davies, A. Fataftah, E. A. Ghabbour, M. H.
B. Hayes and B. E. Watt, Northeast Regional Meeting of the American
Chemical Society, Saratoga Springs, June, 1997. 21.
“Humic Acid as a Respirable Carcinogen,” by M. D. Paciolla, S.
A. Jansen, D. Malfara, G. Davies, A. Fataftah, E. A. Ghabbour, Northeast
Regional Meeting of the American Chemical Society, Saratoga Springs, New
York, June, 1997. 22.
“Thermodynamics of a Biosynthetic Pathway for Soil Derived Humic
Acid,” by L. T. Sein, Jr., S. Kolla, S. A. Jansen, G. Davies, A.
Fataftah, E. A. Ghabbour, Northeast Regional Meeting of the American
Chemical Society, Saratoga Springs, New York, June, 1997. 23.
“Adsorption of a Plant and a Soil Derived Humic Acid on the
Common Clay Kaolinite,” by E. A. Ghabbour, G. Davies, K. O’Donaughy,
T. L. Smith and M. E. Goodwillie, Humic Substances Seminar II,
Northeastern University, Boston, March, 1998. 24.
“Structure and Elemental Composition of Humic Acids: Comparison
between Solid-State 13C NMR and Chemical Analysis,” by J.
Mao, W. Hu, K. Schmidt-Rohr, G. Davies, E. A. Ghabbour and B. Xing, Humic
Substances Seminar II, Northeastern University, Boston, March, 1998. 25.
“Generation of Free Radicals by HA: Implications for Biological
Activity,” by M. D. Paciolla, S. Kolla, L. T. Sein, Jr., J. M. Varnum,
D. L. Malfara, G. Davies. E. A. Ghabbour and S. A. Jansen, Humic
Substances Seminar II, Northeastern University, Boston, March, 1998. 26.
“Humic Acid Gel Drying with Supercritical CO2,” by
R. J. Willey, A. Radwan, M. E. Vozzella, A. Fataftah, E. A. Ghabbour and
G. Davies, Barnett Institute Science Day, May, 1998 27.
“Humic Acid-Minerals Interactions. Adsorption of Humic Acids from
different Sources on
Kaolinite,” by E. A. Ghabbour, G. Davies, K. O’Donaughy, T. L. Smith,
Barnett Institute Science Day, May, 1998 28.
“Adsorption of Humic Acids on Clays and Minerals. 1. Adsorption
of Peat- and Soil-derived Humic Acids on Kaolinite,” by E. A. Ghabbour,
G. Davies, K. O’Donaughy, T. L. Smith and M. E. Goodwillie, 216th ACS
National Meeting Boston, MA, August, 1998. 29.
“Adsorption of Uracil on Copper(II)-loaded, Peat- and
Soil-derived Humic Acids,” by G. Davies, E. A. Ghabbour and N. A. Smith,
216th ACS National Meeting Boston, MA, August, 1998. 30.
“Humic Acid-Minerals Interactions. Adsorption of Humic Acids from
different Sources on
Kaolinite,” by E. A. Ghabbour, G. Davies, K. O’Donaughy, T. L. Smith,
90th Soil Science Society of America National Meeting, Baltimore, MD,
October, 1998. 31.
“Effects of Cu(II) and Hg(II) loading on Adsorption of Uracil by
Humic Acids,” by G. Davies, E. A. Ghabbour and N. A. Smith, 90th Soil
Science Society of America National Meeting, Baltimore, MD, October, 1998. 32.
“Interactions of Humic Acids with Metal Ions and Clays” by G.
Davies and E. A. Ghabbour, Workshop on Natural Organic Matter, University
of Minnesota, October, 1998. 33.
“Interactions of Cu(II) and Hg(II) loaded Humic Acids with Uracil”
by G. Davies, E. A. Ghabbour and N. A. Smith, Workshop on Natural Organic
Matter, University of Minnesota, October, 1998. 34.
“Adsorption of Uracil on Copper(II)-Loaded Peat and Soil Derived
Humic Acids” by G. Davies, E. A. Ghabbour and N. A. Smith, First
International Conference on The Role of Chemistry Administration for
Attending Environment and Society, Cairo, Egypt, December, 1998. 35.
“Evaluation of Solid-Solid-State 13C NMR Techniques in
the Characterization of humic
acids”, by Baoshan Xing,
Jingdong Mao, Weiguo Hu, Klaus Schmidt-Rohr, Geoffrey Davies and Elham A.
Ghabbour, Humic Substances Seminar III, Northeastern University, Boston,
March, 1999. 36.
"Searching Humic Acid Structures" E. A. Ghabbour, G.
Davies, K. O’Donaughy, A. Fataftah, N. A. Smith, D.
Sorour, R. Dunfee, N. Ghali, Y.-Y. Lam and M. Vozzella, Greater New
England Physical Chemistry Poster Session, Northeastern University, April
10, 1999. 37.
"Searching Humic Acid Structures" E. A. Ghabbour, G.
Davies, K. O’Donaughy, M. Mulligan, N. A. Smith, D.
Sorour, R. Dunfee, N. Ghali, Y. -Y. Lam and M. Vozzella. Research and
Scholarship Poster Session, Northeastern University, May 10, 1999. 38.
“Adsorption of Nucleic Acid Constituents on Solid Peat and Soil
Derived Humic Acids”, E. A. Ghabbour, G Davies, R. A. Dunfee, A. A.
Smith and M. E. Vozzella, invited lecture, Symposium on Humic Substances
in Soil and Related Environments, Canadian Society of Soil Science Annual
Meeting, Charlottetown, Prince Edward Island, Canada, August, 1999. 39.
“Tight Metal Binding by Peat and Soil Derived Humic Acids,” G.
Davies. E. A. Ghabbour, N. K. Ghali and M. D. Mulligan, Symposium on Humic
Substances in Soil and Related Environments, Canadian Society of Soil
Science Annual Meeting, Charlottetown, Prince Edward Island, Canada,
August, 1999. 40.
“The Effect of Temperature on Tight Metal Binding by Peat and
Soil Derived Solid Humic Acids,” G. Davies, E. A. Ghabbour, N. K. Ghali
and M. D. Mulligan, American Chemical Society 218th National Meeting, New
Orleans, LA, August, 1999. 41.
“Isolation of Humic Acids from the Water Hyacinth, Eichhornia crassipes,” E. A. Ghabbour, G. Davies, Y. -Y. Lam, J.
Mao and B. Xing, American Chemical Society 218th National Meeting, New
Orleans, LA, August, 1999. 42.
“Adsorption of Nucleic Acid Constituents on Solid Metal-Loaded
Peat and Soil-Derived Humic Acids,”
E. A. Ghabbour, G. Davies,
R.A. Dunfee, N.A. Smith and M.E. Vozzella, Barnett Institute Bioanalytical
Division Retreat, September 2, 1999. 43.
“Tight Metal Binding by Peat and Soil Derived Solid Humic
Acids,” by G. Davies, E. A. Ghabbour, N. K. Ghali and M. D. Mulligan,
91th Soil Science Society Annual Meeting, Salt Lake City, UT, November,
1999. 44.
“Examination of Humic Acids Using Solid State 13C NMR
Techniques,” by B. Xing, J. Mao, W. G. Hu, K. Schmidt-Rohr, G. Davies
and E. A. Ghabbour, 91th Soil Science Society Annual Meeting, Salt Lake
City, UT, November, 1999. 45. “Undergraduate Adventures with Humic Acids,” by G. Davies and E. A. Ghabbour, Bates College, November, 1999. 46.
“Back to the Future: Critical Analysis and Perspectives of
Electrophoretic Techniques Applied to Humic Substances at the Beginning of
the New Millenium,” by M. De Nobili, J. Niraneza, E. A. Ghabbour and G.
Davies, Humic Substances Seminar IV, Northeastern University, March, 2000. 47.
“Adventures with Humic Acids,” G. Davies and E. A. Ghabbour,
University of Arizona, April 2000. 48.
“Tight Metal Binding by Water Hyacinth-derived Humic Acids,” by
E. A. Ghabbour, A. El-Shafey and G. Davies, 33rd ACS Middle Atlantic
Regional Meeting, University of Delaware, May 15-17, 2000. 49.
“Linear Correlations of Enthalpies and Entropies of Metal Binding
by Solid Humic Acids,” by M. Shaker, E. A. Ghabbour, G. Davies, A. El-Toukhy
and I. M. Abid, 33rd ACS Middle Atlantic Regional Meeting, University of
Delaware, May 15-17, 2000. 50.
“Effects of Tightly Bound Metals on the Sorptive Properties of
Solid Humic Acids,” by E. A. Ghabbour, R. A. Dunfee, M. Zovko and G.
Davies, third International Symposium of the Working Group ISMOM of the
International Union of Soil Sciences, Interactions of Soil Minerals with
Organic Components and Microorganisms, Naples, Italy, May 22-26, 2000. 51.
“Thermodynamics of Metal Binding by Solid Humic Acids,” by E.
A. Ghabbour, M. Shaker, G. Davies, A. El-Toukhy and I. M. Abid, third
International Symposium of the Working Group ISMOM of the International
Union of Soil Sciences, Interactions of Soil Minerals with Organic
Components and Microorganisms, Naples, Italy, May 22-26, 2000. 52.
“Tight Metal Binding by Water Hyacinth-derived Humic Acids,” by
E. A. Ghabbour, A. El-Shafey and G. Davies, Northeast Regional ACS Meeting
in 2000 (MERM), University of Connecticut, June, 18-21, 2000. 53.
“Metal Binding by Solid Humic Acids,” by M. Shaker, E. A.
Ghabbour, G. Davies, A. El-Toukhy and I. M. Abid, Northeast Regional ACS
Meeting in 2000 (MERM), University of Connecticut, June, 18-21, 2000. 54.
“Tightly Bound Metals Affect the Sorptive Properties of Solid
Humic Acids,” by E. A. Ghabbour, R. A. Dunfee, M. Zovko and G. Davies,
10th Biennial Conference of the International Humic Substances
Society, Toulouse, France, July, 2000. 55.
“Tight Metal Binding by Solid Humic Acids Isolated from the Water
Hyacinth, Eichhornia crassipes,”
by G. Davies, E. A. Ghabbour and A. El-Shafey, 10th Biennial
Conference of the International Humic Substances Society, Toulouse,
France, July, 2000. 56.
“Temperature Independent Site Occupation in the Tight
Binding of Iron(III) by a Solid Soil-Derived Humic Acid,” by M. Shaker,
E. A. Ghabbour, G. Davies, A. El-Toukhy and I. M. Abid, 10th
Biennial Conference of the International Humic Substances Society,
Toulouse, France, July, 2000. 57. “Metal Binding by Solid Humic Acids is Free-Energy Buffered,” by E. A. Ghabbour, M. Shaker, G. Davies, A. El-Toukhy and I. M. Abid, 10th Biennial Conference of the International Humic Substances Society, Toulouse, France, July, 2000. 58.
“Adventures with Humic Acids” by E. A. Ghabbour, Swiss Federal
Institute of Technology, ETH Zurich, November 2000. 59.
"Understanding Humic Substances", by E. A. Ghabbour,
Inorganic and Physical Chemistry Seminar Series, Northeastern University,
January 2001. 60. "Understanding the Effect of Metals on the Macroscopic
Properties of Solid Humic Acids" by E. A. Ghabbour, Analytical and
Environmental Chemistry seminars Series, University of Massachusetts,
lowell, MA, April 2001. 61. “Thermodynamics of Metal Binding by Solid Humic Acids.
Implications for Soil Processes” by E. A. Ghabbour and G. Davies,
the 6th International Conference on the Biogeochemistry of Trace Elements
(ICOBTE), University of Guelph, Canada, August, 2001. 62. “xafs Studies of Cobalt(II) Binding by Peat, Plant and Soil Derived Solid Humic Acids” by E. A. Ghabbour, Andreas Scheinost and Geoffrey Davies, SES II Argonne National Lab, Argonne, IL, May 2002. 63. “Mechanisms of Dna and
Rna Constituent Interactions with Solid Humic Acids used in
Cancer Therapy” by Elham Ghabbour, Danielle Lawton, Geoffrey Davies,
Stephen McNutt and Thomas Renzi, Northeastern University Scholarship &
Technology Expo, May 2002. |
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