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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Chemical and radiological characterization of clay minerals used in pharmaceutics and cosmetics

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Author(s):
Silva, Paulo S. C. [1] ; Oliveira, Sonia M. B. [2] ; Farias, Luciana [3] ; Favaro, Deborah I. T. [3] ; Mazzilli, Barbara P. [1]
Total Authors: 5
Affiliation:
[1] IPEN CNEN SP, Radiat Metrol Ctr, Energy & Nucl Res Inst, BR-05508000 Sao Paulo - Brazil
[2] Univ Sao Paulo, Inst Geosci, BR-05508080 Sao Paulo - Brazil
[3] IPEN CNEN SP, Res Reactor Ctr, Energy & Nucl Res Inst, BR-05508000 Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: APPLIED CLAY SCIENCE; v. 52, n. 1-2, p. 145-149, APR 2011.
Web of Science Citations: 25
Abstract

Since the early days, clays have been used for therapeutic purposes. Nowadays, they are used as active ingredients or as excipient in formulations for a variety of purposes. Despite their wide use, little information is available in literature on their content of trace elements and radionuclides. The purpose of this study was to determine the elements (As, Ba, Br, Cs, Co, Cr, Eu, Fe, Hf, Hg, La, Lu, Rb, Sb, Sc, Sm, Ta, Tb, Yb, Zn, and Zr) and the radionuclides ((238)U, (232)Th, (226)Ra, (228)Ra, (210)Pb and (40)K) in Brazilian clays as well as the health and radiological implications of the use of these clays in pharmaceutical formulations. (C) 2011 Elsevier B.V. All rights reserved. (AU)