In vitro investigation of hydrozincite biomineralization

摘要：

The biomineralization process of hydrozincite Zn5(CO3)2(OH)6 was investigated in vitro.Cyanobacteria and water were collected at Naracauli stream (Sardinia, Italy) during a seasonal field campaign,and used in the laboratory experiments. In order to have a better knowledge of the biomineralization process,whole bacterial cells, bacterial lysate and bacterial exopolymers were used. The results from this study indicates that hydrozincite biomineralization can be reproduced in vitro. Natural and in vitro-formed minerals were studied by using SEM, XRD, IR spectroscopy and Raman spectroscopy. Natural and in vitro-formed hydozincite minerals show different morphological and cristallinity features. The role of the cyanobacteria and the mechanism of biomineralization are briefly discussed.

作者: G.De Giudici F.Podda A.Caredda R.Tombolini M.Casu C.Ricci

作者单位: Dipartimento di Scienze della Terra, Università di Cagliari, Italy Dipartimento di Scienze e Tecnologie Biomediche, Università di Cagliari, Italy Dipartimento di Chimica, Università di Cagliari, Italy Dipartimento di Fisica, Università di Cagliari, Italy

会议类型: 国际会议

会议名称: 第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)

会议地点: 昆明

会议语种:英文

页码: 415-418

在线出版日期: 2007-07-31（万方平台首次上网日期，不代表论文的发表时间）