WO9422770-A1  "An immobilised cell bioprocess for the removal of heavy metals from aqueous flows", L. E. Macaskie, J. Chem. Technol. Biotechnol., 49, 357-379 (1990);  B.C. Jeong D. Phil Thesis, University of Oxford, 1992;  Owen, S., Jeong, B.C., Poole, P.S. and Macaskie, L.E. (1992) Tributyl phosphate degradation by immobilised cells of a Citrobacter sp. Applied Biochemistry & Biotechnology 34/35, 693-707;  R.M. Empson, FHS Biochemistry Part II Dissertation, Oxford 1988;  Dialog Information Services, File 357, DBA, Dialog accession no. 120165, DBA accession no. 91-07807, Tolley M R et al: "Actinide and lanthanum accumulation by immobilized cells of a Citrobacter sp. and application to the decontamination of solutions containing americium and plutonium - phosphatase activity; lanthanum and uranium radionuclide heavy metal recovery;,,,", Abstr.Pap.Am.Chem.Soc.(201 Meet.,Pt,1, ENVR13) 1991;  Dialog Information Services, File 357, DBA, Dialog accession no. 120165, DBA accession no. 91-07807, Tolley M R et al: "Actinide and lanthanum accumulation by immobilized cells of a Citrobacter sp. and application to the decontamination of solutions containing americium and plutonium - phosphatase activity; lanthanum and uranium radionuclide heavy metal recovery;...", Abstr.Pap.Am.Chem.Soc.(201 Meet.,Pt.1, ENVR13) 1991;  Dialog Information Services, File 5, BIOSIS, Dialog accession no. 5938893, Biosis Number: 84071458, Macaskie L E et al: "Cadmium accumulation by a citrobacter.sp immobilized on gel and solid supports applicability to the treatment of liquid wastes containing heavy metal cation", Biotechnol Bioeng 30 (1). 1987, 66-73;  Dialog Information Services, File 5, BIOSIS, Dialog accession no. 5938893, Biosis Number:' 84071458, Macaskie L E et al: "Cadmium accumulation by a citrobacter.sp immobilized on gel and solid supports applicability to the treatment of liquid wastes containing heavy metal cation", Biotechnol Bioeng 30 (1). 1987, 66-73;  Dialog Information Services, File 50, CAB, Dialog accession no. 01860067, CAB accession no. 871330609, Macaskie, L. E. et al: "Cadmium accmulation by a Citrobacter sp.: the chemical nature of the accumulated metal precipitate and its location on the bacterial cells", Journal of General Microbiology vol. 133 (3): p. 539-544;  Dialog Information Services, File 50, CAB, Dialog accession no. 01860067, CAB accession no. 871330609, Macaskie, L. E. et al: "Cadmium accumulation by a Citrobacter sp.: the chemical nature of the accumulated metal precipitate and its location on the bacterial cells", Journal of General Microbiology vol. 133 (3): p. 539-544;  Dialog Information Services, File 50, CAB, Dialog accession no. 02644780,CAB accession no. 931377215,Macaskie, L. E. et al: "The effect of ageing on the accumulation of uranium by a biofilm bioreactor, and promotion of uranium deposition in stored biofilms", Biotechnology Letters vol. 14 (6): p. 525-530;  Dialog Information Services, File 50, CAB, Dialog accession no.02644780,CAB accession no. 931377215,Macaskie, L. E. et al: "The effect of ageing on the accumulation of uranium by a biofilm bioreactor, and promotion of uranium deposition in stored biofilms", Biotechnology Letters vol. 14 (6): p. 525-530;  J.CHEM.TECH.BIOTECHNOL., Volume 49, 1990, Lynne E. Macaskie, "An Immobilized Cell Bioprocess for the Removal of Heavy Metals from Aqueous Flows" page 357 - page 379;  Dialog Information Services, File 357, DBA, Dialog accession no. 120165, DBA accession no. 91-07807, Tolley M R et al: "Actinide and lanthanum accumulation by immobilized cells of a Citrobacter sp. and application to the decontamination of solutions containing americium and plutonium - phosphatase acti- vity; lanthanum and uranium radionuclide heavy metal recovery;...", Abstr.Pap.Am.Chem.Soc. (201 Meet.,Pt.1, ENVR13) 1991;  Dialog Information Services, File 5, BIOSIS, Dialog accession no. 5938893, Biosis Number:' 84071458, Macaskie L E et al: "Cadmium accu- mulation by a citrobacter.sp immobilized on gel and solid supports applicability to the treatment of liquid wastes containing heavy metal cation", Biotechnol Bioeng 30 (1). 1987, 66-73;  Dialog Information Services, File 50, CAB, Dialog accession no.02644780,CAB accession no. 931377215,Macaskie, L. E. et al: "The effect of ageing on the accumulation of uranium by a biofilm bioreactor, and promo- tion of uranium deposition in stored biofilms", Biotechnology Letters vol. 14 (6): p. 525-530;  J.CHEM.TECH.BIOTECHNOL., Volume 49, 1990, Lynne E. Macaskie, "An Immobilized Cell Bioprocess for the Removal of Heavy Metals from Aqueous Flows"US5597484-A  Macaskie, "An Immobilized Cell Bioprocess for the Removal of Heavy Metals from Aqueous Flows," Journal Chem. Tech. Biotechnology 49, pp. 357-379, 1990.;  Macaskie, "Cadmium Accumulation by a Citrobacter", Journal of General Microbiology 133, pp. 539-544, 1987, (abstract).;  Macaskie, "Cadmium Accumulation by a Citrobacter," Biotechnology and Bioengineering 30, pp. 66-73, 1987 (abstract).;  Macaskie, "The Effect of Aging on the Accumulation of Uranium by a Biofilm," Biotechnology Letter 14, pp. 525-530, 1992 (abstract).;  Tolley, "Actinide and Lanthanum Accumulation by Immobilized Cells," Abstract Papers American Chemical Society, 1991 (abstract).