



@article {2512,
	title = {Albumin adsorption on alkanethiols self-assembled monolayers on gold electrodes studied by chronopotentiometry},
	journal = {BiomaterialsBiomaterials},
	volume = {24},
	year = {2003},
	note = {Cited By (since 1996): 31Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(03)00244-8PubMed ID: 12818541Language of Original Document: EnglishCorrespondence Address: Martins, M.C.L.; INEB - Inst. de Engenharia Biomed., Laborat{\'o}rio de Biomateriais, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; email: cmartins@ibmc.up.ptChemicals/CAS: gold, 7440-57-5; thiol derivative, 13940-21-1; water, 7732-18-5; Albumins; Alkanes; Biocompatible Materials; Gold, 7440-57-5; Serum Albumin; Sulfhydryl CompoundsReferences: Ratner, B.D., Hoffman, A.S., Schoen, F.J., Lemons, J.L., (1996) Biomaterials science - an introduction to materials in medicine, , San Diego, CA, USA: Academic Press;Nakanishi, K., Sakiyama, T., Imamura, K., On the adsorption of proteins on solid surfaces, a common but very complicated phenomenon (2001) J Biosci Bioeng, 91, pp. 233-244; 
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Silin, V., Weetall, H., Vanderah, D., SPR studies of the nonspecific adsorption kinetics of human IgG and BSA on gold surfaces modified by self-assembled monolayers (SAMs) (1997) J Colloid Interface Sci, 185, pp. 94-103; 
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Kalltorp, M., Carl{\'e}n, A., Thomsen, P., Olsson, J., Tengvall, P., Analysis of rat plasma proteins desorbed from gold and methyl- and hydroxyl-terminated alkane thiols on gold surfaces (2000) J Mater Sci: Mater Med, 11, pp. 191-199; 
Tidwell, C.D., Ertel, S.I., Ratner, B.D., Endothelial cell growth and protein adsorption on terminal functionalized, self-assembled monolayers of alkanethiolates on gold (1997) Langmuir, 13, pp. 3404-3413; 
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Viana, A.S., Jones, A.H., Abrantes, L.M., Kalaji, M., Redox induced orientational changes in a series of short chain ferrocenyl alkyl thiols self-assembled on gold(1 1 1) electrodes (2001) J Electroanal Chem, 500, pp. 290-298; 
Kondo, T., Okamura, M., Uosaki, K., Anion effect on the electrochemical characteristics of a gold electrode modified with a self-assembled monolayer of ferrocenylhexanethiol in aqueous and dichlomethane solutions (2001) J Organometal Chem, 637-639, pp. 841-844; 
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(1993) Iodine-125. A Guide to Radioiodination Techniques, p. 64. , Amersham Life Science. Little Chalfort, UK: Amersham International plc; 
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Krysinski, P., Brzostowska-Smolska, M., Capacitance characteristics of self-assembled monolayers on gold electrode (1998) Bioelectrochem Bioenergetics, 44, pp. 163-168; 
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Peters T., Jr., (1996) All about albumin: Biochemistry, genetics, and medical applications, , San Diego, CA, USA: Academic Press; 
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},
	month = {2003///},
	pages = {3697 - 3706},
	abstract = {Chronopotentiometry was used to study the adsorption of human serum albumin (HSA) to self-assembled monolayers with the following terminal functional groups: CH                        3, COOH and OH. Surfaces were characterized by X-ray photoelectron spectroscopy, water contact angle measurements and cyclic voltammetry. HSA coverage of the different SAMs was investigated by chronopotentiometry and the total amount of adsorbed protein was determined using radiolabelled albumin. Both techniques have demonstrated that HSA adsorption to the different SAM-modified electrodes increases in the following order: OH\&lt;COOH\&lt;CH
                        3-terminated SAMs. A good correlation between coverage and total amount of HSA adsorbed was observed for long adsorption times (900s). {\textcopyright} 2003 Elsevier Science Ltd. All rights reserved.
},
	keywords = {Adsorption, Albumin, Albumin adsorption, Albumins, alkane, Alkanes, article, Biocompatible Materials, biomaterial, Biomaterials, carboxyl group, Chemical modification, Chronopotentiometry, Contact angle, correlation analysis, cyclic potentiometry, Cyclic voltammetry, electrochemistry, electrode, Electron Probe Microanalysis, Functional groups, gold, Humans, hydroxyl group, isotope labeling, methyl group, Monolayers, potentiometry, priority journal, protein analysis, Self assembly, Self-assembled monolayers, Serum Albumin, Sulfhydryl Compounds, Surface modification, Surface Properties, surface property, temperature, thiol derivative, Time Factors, Water, X ray photoelectron spectroscopy},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0038802804\&partnerID=40\&md5=d9b75bc199d3c909e08c53f4de329ce5},
	author = {Martins, M.C.L. and Fonseca, C. and Barbosa, M.A. and Ratner, B.D.}
}
@article {2568,
	title = {Histological effects of iron accumulation on mice liver and spleen after administration of a metallic solution},
	journal = {BiomaterialsBiomaterials},
	volume = {20},
	year = {1999},
	note = {Cited By (since 1996): 15Export Date: 21 November 2012Source: ScopusCODEN: BIMADdoi: 10.1016/S0142-9612(99)00124-6PubMed ID: 10555088Language of Original Document: EnglishCorrespondence Address: Pereira, M.C.; Departamento de Engenharia Quimica, Faculdade de Engenharia, Universidade do Porto, Rua dos Bragas, 4050-123 Porto, Portugal; email: mcsp@fe.up.ptChemicals/CAS: Iron, 7439-89-6; SolutionsReferences: Rheinold, J.B., Trace elements - A selective survey (1975) Clin Chem, 21, p. 476;Crichton, R.R., Ward, R.J., Structure and molecular biology of iron binding-proteins and the regulation of free iron pools (1992) Iron and Human Diseases, pp. 23-75. , R.B. Lauffer. Boca Raton: CRC Press Inc; 
Lynch, S.R., Lipschitz, D.A., Bothwell, T.H., Charlton, R.W., Iron and the reticulo-endothelial system (1974) Iron in Biochemistry and Medicine, p. 563. , A. Jacobs, \& M. Worwood. London: Academic Press; 
Black, J., Mineral metabolism (1981) Biological Performance of Materials: Fundamentals of Biocompatibility. Biomedical Engineering and Instrumentation, 8, pp. 158-168. , R. Plonsey, Katz J.L. New York: Marcel Dekker; 
Sutow, E.J., Pollack, S.R., The biocompatibility of certain stainless steels (1981) Biocompatibility of Clinical Implant Materials, pp. 77-98. , D.F. Williams. Boca Raton, FL: CRC Press; 
Winter, G.D., Tissue reactions to metallic wear and corrosion products in human patients (1974) J Biomed Mater Res Symp, 5, pp. 11-26; 
Winter, G.D., Wear and corrosion products in tissues and the reactions they provoke (1976) Biocompatibility of Implant Materials, pp. 28-54. , In: Williams, DF, editor London; 
Ferguson A.B., Jr., Laing, P.G., Hodge, E.S., The ionization of metal implants in living tissues (1960) J Bone Jt Surg a, 42, pp. 77-90; 
Pohler, O.E.M., Degradation of metallic orthopedic implants (1983) Biomaterials in Reconstructive Surgery, pp. 196-197. , In: Rubin LR, editor London: The C.V. Mosby Company; 
Lux, F., Zeisler, R., Investigations of the corrosive deposition of components of metal implants and the behaviour of biological trace elements in metallosis tissue by means of instrumental multi-element activation analysis (1974) J Radioanal Chem, 19, pp. 289-297; 
Traisnel, M., Le Maguer, D., Hildebrand, H.F., Iost, A., Corrosion of surgical implants (1990) Clin Mater, 5, pp. 309-318; 
Gosztonyi, E., (1983) Iron Metabolism, p. 339. , New York: Plenum Press; 
Weinberg, E.D., Cellular acquisition of iron and the iron-withholding defense against microbial and neoplastic invasion (1992) Iron and Human Diseases, pp. 179-207. , R.B. Lauffer. Boca Raton, FL: CRC Press Inc; 
Pereira, M.L., Pereira, M.C., Sousa, J.P., Evaluation of nickel effects on mouse liver: Tissue response and metal ion accumulation (1995) Biomed Lett, 52, pp. 235-244; 
Pereira, M.C., Pereira, M.L., Sousa, J.P., Evaluation of nickel toxicity on liver, spleen and kidney of mice after administration of high-dose metal ion (1998) J Biomed Mater Res, 40, pp. 40-47; 
Pereira, M.C., Sousa, J.P., Nickel quantification in mice organs by adsorptive cathodic stripping voltammetry using microelectrodes (1997) Electroanalysis, 9, pp. 150-154; 
Pereira, M.C., Pereira, M.L., Sousa, J.P., Adsorptive stripping measurements of iron accumulation in mice kidney using microelectrodes and histological features (1998) J Trace Elements Med Biol, 12, pp. 50-55; 
Van Den Berg, C.M.G., Huang, Z.Q., Determination of iron in seawater using cathodic stripping voltammetry proceeded by adsorptive collection with the hanging mercury drop electrode (1984) J Electroanal Chem, 177, pp. 269-280; 
Smith, G.K., Black, J., Estimation of in vivo type 316L stainless steel corrosion rate from blood transport and organ accumulation data (1985) Corrosion and Degradation of Implant Materials: Second Symposium, pp. 223-247. , A.C. Fraker, \& C.D. Griffin. Philadelphia: American Society for Testing and Materials; 
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Britton, S.R., Ramm, G.A., Olynyk, J., Singh, R., O{\textquoteright}Neill, R., Bacon, B.R., Pathophysiology of iron toxicity (1994) Progress in Iron Research, pp. 239-253. , C. et al. Hershko. New York: Plenum Press
},
	month = {1999///},
	pages = {2193 - 2198},
	publisher = {Elsevier Science Ltd},
	abstract = {Special attention has been focused on the toxicity of some metallic species released from implanted materials, which accumulate in vital organs over long periods of time. A set of experiments with mice was designed to investigate the individual effects caused by iron in the liver and spleen. Histological features of these organs were evaluated and slight morphological changes were observed during the treatment time suggesting a negative correlation with the duration of the iron treatment. In addition, to associate the histological changes in the organs with iron accumulation an electrochemical method, adsorptive stripping voltammetry, was chosen to quantify the iron levels in these mentioned organs. The accuracy of the proposed method was checked by atomic absorption spectrometry. Both organs showed elevated concentrations of iron, nearly twofold, 7 days after iron administration compared to control organs.Special attention has been focused on the toxicity of some metallic species released from implanted materials, which accumulate in vital organs over long periods of time. A set of experiments with mice was designed to investigate the individual effects caused by iron in the liver and spleen. Histological features of these organs were evaluated and slight morphological changes were observed during the treatment time suggesting a negative correlation with the duration of the iron treatment. In addition, to associate the histological changes in the organs with iron accumulation an electrochemical method, adsorptive stripping voltammetry, was chosen to quantify the iron levels in these mentioned organs. The accuracy of the proposed method was checked by atomic absorption spectrometry. Both organs showed elevated concentrations of iron, nearly twofold, 7 days after iron administration compared to control organs.
},
	keywords = {Absorption spectroscopy, accuracy, Adsorption, Adsorptive stripping voltametry, Adsorptive stripping voltammetry, animal experiment, animal model, animal tissue, Animalia, Animals, article, atomic absorption spectrometry, Atomic spectroscopy, bioaccumulation, biomaterial, controlled study, Corrosion, electrochemistry, histology, histopathology, Implants (surgical), Injections, Subcutaneous, Iron, iron metabolism, Kinetics, Liver, liver toxicity, male, metal implantation, Mice, morphology, mouse, nonhuman, Organ Size, potentiometry, priority journal, quantitative assay, Solutions, Spleen, Stainless steel, tissue distribution, toxicity},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032855084\&partnerID=40\&md5=2e7274d8d0372ff55881c2d9de94c54b},
	author = {Pereira, M.C. and Pereira, M.L. and Sousa, J.P.}
}
@article {2570,
	title = {Individual study of chromium in the stainless steel implants degradation: An experimental study in mice},
	journal = {BioMetalsBioMetals},
	volume = {12},
	year = {1999},
	note = {Cited By (since 1996): 7Export Date: 21 November 2012Source: ScopusCODEN: BOMEEPubMed ID: 10581692Language of Original Document: EnglishCorrespondence Address: Do Carmo Pereira, M.; Departamento de Engenharia Quimica, FEUP, Rua dos Bragas, 4050-123 Porto, Portugal; email: mcsp@fe.up.ptChemicals/CAS: Biocompatible Materials; Chromium, 7440-47-3; Stainless Steel, 12597-68-1References: Bartolozzi, A., Black, J., Chromium concentrations in serum, blood clot and urine from patients following total hip arthroplasty (1985) Biomaterials, 6, pp. 2-8;Black, J., Maitin, E.C., Gelman, H., Morris, D.M., Serum concentrations of chromium, cobalt and nickel after total hip replacement: A six month study (1983) Biomaterials, 4, pp. 160-164; 
Brien, W.W., Salvati, E.A., Healey, J.H., Bansal, M., Ghelman, B., Betts, F., Osteogenic sarcoma arising in the area of a total hip replacement (1990) J Bone Joint Surg, 72 A, pp. 1097-1099; 
Brown, S.A., Farnsworth, U., Merritt, K., Crowe, T.D., In vitro and in vivo metal ion release (1988) J Biomed Mater Res, 22, pp. 321-338; 
Brown, S.A., Zhang, K., Merritt, K., Payer, J.H., In vivo transport and excretion of corrosion products from accelerated anodic corrosion of porous coaled 1-75 alloy (1993) J Biomed Mater Res, 27, pp. 1007-1017; 
Burrows, D., (1983) Chromium: Metabolism and Toxicity, , CRC Press, Boca Raton, Florida; 
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Katz, S.A., Salem, H., The toxicology of chromium with respect to its chemical speciation: A review (1993) J Appl Toxicol, 13, pp. 217-224; 
Katz, S.A., Salem, H., (1994) The Biological and Environmental Chemistry of Chromium, , VCH Publishers; 
Langard, S., Hensten-Pettersen, A., Chromium toxicology (1981) Systemic Aspects of Biocompatibility, p. 143. , Williams DF. eds. Boca Raton, Florida, CRC Press; 
Martin, A., Bauer, T.W., Manley, M.T., Marks, K.E., Osteosarcoma at the site of total hip replacement (1988) J Bone Joint Surg, 70 A, pp. 1561-1566; 
Merritt, K., Brown, S.A., Biological effects of corrosion products from metals (1985) Corrosion and Degradation of Implant Materials: Second Symposium, pp. 195-207. , Fraker AC. Griffin CD. eds. Philadelphia, American Society for Testing and Materials; 
Merritt, K., Brown, S.A., Release of hexavalent chromium from corrosion of stainless steel and cobalt-chromium alloys (1995) J Biomed Mater Res, 29, pp. 627-633; 
Merritt, K., Brown, S.A., Sharkey, N.A., Blood distribution of nickel, cobalt, and chromium following intramuscular injection into hamsters (1984) J Biomed Mater Res, 18, pp. 991-1004; 
Merritt, K., Brown, S.A., Sharkey, N.A., The binding of metal salts and corrosion products to cells and proteins in vitro (1984) J Biomed Mater Res, 18, pp. 1005-1015; 
Merritt, K., Crowe, T.D., Brown, S.A., Elimination of nickel, cobalt, and chromium following repeated injections of high dose metal salts (1989) J Biomed Mater Res, 23, pp. 845-862; 
Merritt, K., Fedele, C.D., Brown, S.A., Chromium 6+ or 3+ release during corrosion; And in vivo distribution (1992) Biomaterial- Tissue Interfaces, Advances in Biomaterials, 10, pp. 49-53. , Doherty PJ. et al., eds; 
Pereira, M.C., Faria, J.L., Reis, M.L., Sousa, J.P., Nickel quantification in mice organs by adsorptive cathodic stripping voltammetry using microelectrodes (1997) Electroanalysis, 9, pp. 150-154; 
Pereira, M.C., Pereira, M.L., Sousa, J.P., Adsorptive stripping voltammetric measurements of chromium accumulation in mice organs using mercury film microelectrodes (1997) Electroanalysis, 9, pp. 941-944; 
Pereira, M.C., Pereira, M.L., Sousa, J.P., Evaluation of nickel toxicity on liver, spleen and kidney of mice after administration of high-dose metal ion (1998) J Biomed Mater Res, 40, pp. 40-47; 
Pereira, M.C., Pereira, M.L., Sousa, J.P., Adsorptive stripping measurements of iron accumulation in mice kidney using microlectrodes and histological features (1998) J Trace Elements Med Biol, 12, pp. 50-55; 
Pohler, O.E.M., Degradation of metallic orthopedic implants (1983) Biomaterials in Reconstructive Surgery, pp. 158-228. , Rubin LR, ed. The C. V. Mosby Company; 
Ross, M.H., Rowrell, L.J., (1985) Histology a Text and Atlas, , Williams \& Wilkins; 
Smith, G.K., Black, J., Estimation of in vivo type 316L stainless steel corrosion rate from blood transport and organ accumulation data (1985) Corrosion and Degradation of Implant Materials; Second Symposium, pp. 223-247. , Fraker AC, Griffin CD, eds. American Philadelphia, Society for Testing and Materials; 
Sunderman F.W., Jr., Hopfer, S.M., Swift, T., Cohalt, chromium, and nickel concentrations in body fluids of patients with porous-coated knee or hip prostheses (1989) J Orthop Res, 7, pp. 307-315; 
Yang, J., Black, J., Competitive binding of chromium, cobalt and nickel to serum proteins (1994) Biomaterials, 15, pp. 262-268; 
Young, E., Houwing, R.H., Patch test results with standard allergens over a decade (1987) Contact Dermatitis, 17, pp. 104-107
},
	month = {1999///},
	pages = {275 - 280},
	abstract = {To study the accumulation and the histological effects in mice organs caused by hexavalent chromium, one of the corrosion products released from AISI 316L stainless steel implants, mice groups were subcutaneously injected with a metallic solution of chromium during a certain period of time. Similar injections were made with HBSS (Hank{\textquoteright}s Balanced Salt Solution) in other groups to be used as controls. The levels of chromium found in the liver, kidney and spleen of the control and the treated animals were obtained by atomic absorption spectrometry (AAS) and were compared to those obtained by AdSV (adsorptive stripping voltammetry) to test the accuracy of the results. During the experimental period, the liver and spleen showed a progressive and significant accumulation of chromium whereas in the kidney the significant accumulation found after the first week practically remained unchanged during the four weeks. Apparently, the histological analysis of these tissues did not evidence any relevant morphological alteration induced by the chromium accumulations during the four weeks of treatment.},
	keywords = {animal experiment, animal tissue, Animalia, Animals, article, atomic absorption spectrometry, Biocompatible Materials, biomaterial, body weight, Chromium, controlled study, Corrosion, histology, histopathology, implant, Injections, Subcutaneous, Kidney, Liver, liver level, male, Mice, Mice organs, Mice, Inbred Strains, mouse, nonhuman, potentiometry, Prostheses and Implants, Spleen, Stainless steel, tissue distribution},
	isbn = {09660844 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032840626\&partnerID=40\&md5=e81da6070ec455e49604d3773033d58d},
	author = {Pereira, M.D.C. and Pereira, M.D.L. and Sousa, J.P.}
}
@article {2588,
	title = {Adsorptive stripping measurements of iron accumulation in mice kidney using microelectrodes and histological features},
	journal = {Journal of Trace Elements in Medicine and BiologyJ. Trace Elem. Med. Biol.},
	volume = {12},
	year = {1998},
	note = {Cited By (since 1996): 5Export Date: 21 November 2012Source: ScopusCODEN: JTEBFPubMed ID: 9638613Language of Original Document: EnglishCorrespondence Address: Sousa, J.P.; INEB-Inst. de Engenharia Biomedica, Departamento de Engenharia Quimica, Faculdade Engenharia Univ. do Porto, Praca do Coronel Pacheco, 1, 4050 Porto, PortugalChemicals/CAS: Iron, 7439-89-6; Mercury, 7439-97-6References: Traisnel, M., Le Maguer, D., Hildebrand, H.F., Iost, A., Corrosion of surgical implants (1990) Clin. Mater., 5, pp. 309-318;Sutow, E.J., Pollack, S.R., The biocompatibility of certain stainless steels (1981) Biocompatibility of Clinical Implant Materials, 1, pp. 77-98. , Williams, D.F. eds CRC Press, Boca Raton, Florida; 
Ferguson Jr., A.B., Laing, P.G., Hodge, E.S., The ionization of metal implants in living tissues (1960) J. Bone Joint Surg., 42 A, pp. 77-90; 
Winter, G.D., Wear and corrosion products in tissues and the reactions they provoke (1976) Biocompatibility of Implant Materials, pp. 28-54. , Williams, D.F. eds London; 
Lux, F., Zeisler, R., Investigations of the corrosive deposition of components of metal implants and the behaviour of biological trace elements in metallosis tissue by means of instrumental multi-element activation analysis (1974) J. Radioanal. Chem., 19, pp. 289-297; 
Merritt, K., Brown, S.A., Sharkey, N.A., Blood distribution of nickel, cobalt, and chromium following intramuscular injection into hamsters (1984) J. Biomed. Mater. Res., 18, pp. 991-1004; 
Merritt, K., Brown, S.A., Biological effects of corrosion products from metals (1985) Corrosion and Degradation of Implant Materials: Second Symposium, pp. 195-207. , Fraker, A.C., Griffin, C.D. eds American Society for Testing and Materials, Philadelphia; 
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},
	month = {1998///},
	pages = {50 - 55},
	abstract = {The toxic effects caused by iron in kidney was performed on experimental studies with mice following administration of a metallic solution of this specie to simulate the iron corrosion products of a metallic implant. To quantify the total levels of iron present in this organ, an electrochemical method was chosen based on the application of square wave voltammetry using adsorptive collection of iron-catechol on a mercury film microelectrode (MFM). The optimal working conditions to produce a very stable and reproducible iron peak in the digested kidney samples were found to be pH=7.2 provided by 8.0 mmol/L PIPES buffer, catechol concentration of 3.0x10},
	keywords = {, biomaterials, Adsorptive stripping, animal experiment, animal model, animal tissue, Animals, article, atomic absorption spectrometry, biomaterial, controlled study, electrochemical analysis, electrochemistry, histology, Iron, iron absorption, Kidney, male, Mercury, metal implantation, Mice, microelectrode, Microelectrodes, mouse, nonhuman, potentiometry, priority journal, Toxicology},
	isbn = {0946672X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031746863\&partnerID=40\&md5=f85b47bb916eab32df5be2219498793f},
	author = {Pereira, M.C. and Pereira, M.L. and Sousa, J.P.}
}
@article {2584,
	title = {Chromium determination in osteoblast-like cell culture medium by catalytic cathodic stripping voltammetry with a mercury microelectrode},
	journal = {Journal of Trace Elements in Medicine and BiologyJ. Trace Elem. Med. Biol.},
	volume = {12},
	year = {1998},
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},
	month = {1998///},
	pages = {101 - 108},
	abstract = {A catalytic cathodic stripping voltammetric procedure for the determination of total chromium in osteoblast-like cell culture medium using a mercury film microelectrode (MFM) was optimised. The method is based on the pre-concentration of the Cr(III)-diethylenetriaminepentaacetic acid (DTPA) complex by adsorption at the potential of -1.00 V (vs. Ag/AgCl) in the presence of 10 x 10},
	keywords = {Acetates, animal cell, Animalia, Animals, article, atomic absorption spectrometry, Bone Marrow Cells, catalysis, Cell culture, Cells, Cultured, Chromium, complex formation, controlled study, Culture Media, culture medium, drug determination, electrochemistry, Electrodes, Hydrogen-Ion Concentration, in vitro study, Kinetics, Mercury, microelectrode, Microelectrodes, Nitrates, nonhuman, osteoblast, Osteoblasts, potentiometry, priority journal, Rabbits, Reproducibility of Results, sensitivity and specificity, Stromal Cells, technique},
	isbn = {0946672X (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-7344255754\&partnerID=40\&md5=16bbb746d7dcdd04b95a01edcc764771},
	author = {Morais, S. and De Carvalho, G.S. and Sousa, J.P.}
}
@article {2587,
	title = {Evaluation of nickel toxicity on liver, spleen, and kidney of mice after administration of high-dose metal ion},
	journal = {Journal of Biomedical Materials ResearchJ. Biomed. Mater. Res.},
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	year = {1998},
	note = {Cited By (since 1996): 27Export Date: 21 November 2012Source: ScopusCODEN: JBMRBdoi: 10.1002/(SICI)1097-4636(199804)40:1<40::AID-JBM5>3.0.CO;2-RPubMed ID: 9511097Language of Original Document: EnglishCorrespondence Address: Sousa, J.P.; Instituto de Engenharia Biomedica, Faculdade de Engenharia, Universidade do Porto, Praca Coronel Pacheco, 1, 4050 Porto, PortugalChemicals/CAS: Nickel, 7440-02-0References: Cigada, A., Rondelli, G., Vicentini, B., Brunella, F., Dallaspezia, G., Corrosion behavior of high nitrogen stainless steels for biomedical applications (1994) Compatibility of Biomedical Implants, pp. 185-195. , P. Kovacs and N. S. Istephanous (eds.), The Electrochemical Society, Inc., Pennington, New Jersey;Bumgardner, J.D., Lucas, L.C., An evaluation of the corrosion properties and cellular compatibility of nickel-based dental casting alloys (1994) Compatibility of Biomedical Implants, pp. 241-252. , P. Kovacs and N. S. Istephanous (eds.), The Electrochemical Society, Inc., Pennington, New Jersey; 
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},
	month = {1998///},
	pages = {40 - 47},
	publisher = {John Wiley \& Sons Inc},
	abstract = {The toxic effects caused by nickel (Ni) per si were explored by performing in vivo studies on mice following subcutaneous administration of a metallic solution of nickel at 1, 2, 3, and 4 weeks to evaluate the side effects of this metal ion when released from stainless steel implants. Other groups were similarly injected with HBSS and used as controls. Accumulation of Ni ions on liver, spleen, and kidney was assessed by an electrochemical method, adsorptive stripping voltammetry (AdSV) using microelectrodes, and atomic absorption spectrometry (AAS). Alterations of those organs induced by Ni ions were studied, showing that several histological changes had been induced. Chemical analysis and histological features indicate that Ni is partially accumulated in the study organs.The toxic effects caused by nickel (Ni) per si were explored by performing in vivo studies on mice following subcutaneous administration of a metallic solution of nickel at 1, 2, 3, and 4 weeks to evaluate the side effects of this metal ion when released from stainless steel implants. Other groups were similarly injected with HBSS and used as controls. Accumulation of Ni ions on liver, spleen, and kidney was assessed by an electrochemical method, adsorptive stripping voltammetry (AdSV) using microelectrodes, and atomic absorption spectrometry (AAS). Alterations of those organs induced by Ni ions were studied, showing that several histological changes had been induced. Chemical analysis and histological features indicate that Ni is partially accumulated in the study organs.
},
	keywords = {Absorption spectroscopy, Adsorptive stripping voltammetry, animal experiment, animal tissue, Animals, article, atomic absorption spectrometry, biomaterial, body weight, controlled study, Dose-Response Relationship, Drug, electrochemistry, Evaluation Studies, histology, Implants (surgical), Kidney, Liver, liver toxicity, Living systems studies, Mice, Microelectrodes, mouse, nephrotoxicity, Nickel, nonhuman, potentiometry, Spectrophotometry, Atomic, Spleen, spleen injury, Stainless steel, toxicity},
	isbn = {00219304 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0032053959\&partnerID=40\&md5=b1b91f83e841302830f88702c7146ae0},
	author = {Pereira, M.C. and Pereira, M.L. and Sousa, J.P.}
}
@article {2625,
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Klein, C.P.A.T., Patka, P., Wolke, J.G.C., De Blieck-Hogervorst, J.M.A., De Groot, K., Long-term in vivo study of plasma-sprayed coatings on titanium alloys of tetracalcium phosphate, hydroxyapatite and α-tricalcium phosphate (1994) Biomaterials, 15, pp. 146-160; 
Reis, R.L., Monteiro, F.J., Hastings, G.W., Stability of hydroxyapatite plasma-sprayed coated Ti-6Al-4V under cyclic bending in simulated physiological solutions (1994) J Mater Sci: Mater Med, 5, pp. 457-462; 
Wang, B.C., Lee, T.M., Chang, E., Yang, C.Y., The shear strength and the failure mode of plasma-sprayed hydroxyapatite coating to bone: The effect of coating thickness (1993) J Biomed Mater Res, 27, pp. 1315-1327; 
Tranquilli Leali, P., Merolli, A., Palmacci, O., Gabbi, C., Cacchiolo, A., Gonizzi, G., Evaluation of different preparations of plasma-spray hydroxyapatite coating on titanium alloy and duplex stainless steel in the rabbit (1994) J Mater Sci: Mater Med, 5, pp. 345-349
},
	month = {1996///},
	pages = {397 - 404},
	publisher = {Elsevier Science Ltd},
	abstract = {The electrochemical dissolution behaviour of Ti6Al4V alloy coated with hydroxyapatite (HA) by plasma spraying was studied in Hank{\textquoteright}s balanced salt solution (HBSS) and compared with that of polished and grit-blasted passivated surfaces. Two different nominal thicknesses of HA (50 and 200 μm) were used. Taking a polished passivated surface as reference, grit blasting of the substrate increased the electrical charge used in the oxidation of Ti6Al4V alloy at constant potential, as a result of increased surface area. However, only HA coatings with a thickness of 200 μm were capable of reducing the charge to values lower than those measured for polished surfaces. Electrochemical impedance spectroscopy has also shown that only 200 μm thick coatings are effective in reducing the oxidation rate of the substrate. Furthermore, in potentiostatic experiments the 50 μm thick coating detached from the substrate, which did not occur with the 200 μm thick coating. However, after 6 months immersion in HBSS, detachment occurred in some regions of both coatings. No titanium, aluminium or vanadium were detected in solution by electrothermal atomic absorption spectroscopy. These data indicate that HA is an effective barrier to metal ion release, even for the thinner coatings, due to formation of metal phosphates or to incorporation of metal ions in the HA structure.The electrochemical dissolution behaviour of Ti6Al4V alloy coated with hydroxyapatite (HA) by plasma spraying was studied in Hank{\textquoteright}s balanced salt solution (HBSS) and compared with that of polished and grit-blasted passivated surfaces. Two different nominal thicknesses of HA (50 and 200 μm) were used. Taking a polished passivated surface as reference, grit blasting of the substrate increased the electrical charge used in the oxidation of Ti6Al4V alloy at constant potential, as a result of increased surface area. However, only HA coatings with a thickness of 200 μm were capable of reducing the charge to values lower than those measured for polished surfaces. Electrochemical impedance spectroscopy has also shown that only 200 μm thick coatings are effective in reducing the oxidation rate of the substrate. Furthermore, in potentiostatic experiments the 50 μm thick coating detached from the substrate, which did not occur with the 200 μm thick coating. However, after 6 months immersion in HBSS, detachment occurred in some regions of both coatings. No titanium, aluminium or vanadium were detected in solution by electrothermal atomic absorption spectroscopy. These data indicate that HA is an effective barrier to metal ion release, even for the thinner coatings, due to formation of metal phosphates or to incorporation of metal ions in the HA structure.
},
	keywords = {Absorption spectroscopy, Alloys, Aluminum, article, Atomic spectroscopy, balanced salt solution, Bioactive coatings, Biocompatible Materials, Biomaterials, Calcium Compounds, Dissolution, Durapatite, Electric charge, Electrochemical dissolution, Electrochemical impedance spectroscopy, electrochemistry, Electrothermal atomic absorption spectroscopy, Hank balanced salt solution, hydroxyapatite, Ion release, Ions, metal ion, Metal ion release, Metal phosphates, Microscopy, Electron, Scanning, Oxidation, Plasma spraying, potentiometry, priority journal, Spectrophotometry, Atomic, Spectroscopy, Substrates, thickness, Thickness effect, Time Factors, Titanium, Titanium alloys, vanadium},
	isbn = {01429612 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0030087995\&partnerID=40\&md5=ec5e4bddc601b37b0dbe58029dd679d4},
	author = {Sousa, S.R. and Barbosa, M.A.}
}
@article {2616,
	title = {Potentiometric Determination of Total and Ionized Calcium in Osteoblast-Like Cell Culture Medium},
	journal = {ElectroanalysisElectroanalysis},
	volume = {8},
	year = {1996},
	note = {Cited By (since 1996): 6Export Date: 21 November 2012Source: ScopusCODEN: ELANELanguage of Original Document: EnglishCorrespondence Address: Sousa, J.P.; Inst. de Engenharia Biom{\'e}dica, Faculdade de Engenharia, Universidade do Porto, Pra{\c c}a Coronel Pacheco, 1, P-4050 Porto, PortugalReferences: Nernst, W., (1886) Z. Phys. Chem., 2, p. 613;Nernst, W., (1889) Z. Phys. Chem., 4, p. 129; 
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Manzoni, A., Premoli, P., (1985) Methodology and Clinical Applications of Ion-Selective Electrodes, pp. 131-136. , (Eds: A. H. J. Maas, A. B. T. J. Boink, N. E. L. Saris, R. Sprokholt, P. D. Wimberley), Radiometer, Copenhagen; 
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Morais, S., Sousa, J.P., Fernandes, H., Carvalho, G.S., (1994) 11th European Conference on Biomaterials, Pisa, pp. 10-11. , Last Minute Posters Abstracts Book, European Society for Biomaterials; 
Ruzicka, J., Tjell, J.C., (1969) Anal. Chim. Acta, 47, p. 475; 
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Recomendations for Nomenclature of Ion-Selective Electrodes (1994) Pure Appl. Chem., 66, p. 2527; 
Ringbom, A., (1963) Complexation in Analytical Chemistry, , Interscience, New York; 
Russell Instruction Manual of Calcium Electrode Model 93-3209; 
Baudet, S., (1994) Methods in Cell Biology, pp. 93-113. , Academic Press, New York; 
Scharff, O., (1979) Anal. Chim. Acta, 109, p. 291
},
	month = {1996///},
	pages = {1174 - 1178},
	abstract = {The effect of the ionic strength and composition of solutions in the direct potentiometric determination of total and ionized calcium content using a calcium selective electrode was investigated. In the presence of a constant complexation buffer (CCB), the addition of sodium chloride and sodium bicarbonate causes a decrease in the limit of detection of the potentiometric response. When the procedure was tested in osteoblast-like cell culture medium no electrode interferences or method interferences were observed by the presence of proteins, i.e., the total and ionized calcium in this medium can be measured by potentiometric means.},
	keywords = {Cell culture medium, potentiometry, Total and ionized calcium},
	isbn = {10400397 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0000007614\&partnerID=40\&md5=e2532b414ac34fdd4bb8b71ac5cbabcd},
	author = {Morais, S. and Carvalho, G.S. and Sousa, J.P.}
}
