نتایج جستجو برای: biomineralization

تعداد نتایج: 1859  

2013
Igor E. Pamirsky Kirill S. Golokhvast

The taxonomic affiliation (in the systematisation of viruses, and biological domains) of known peptides and proteins of biomineralization (silicateins, silaffins, silacidins and silicase) and their primary structure homologues were analyzed (methods in silico; using Uniprot database). The total number of known peptides and proteins of biosilicification was counted. The data of the quantitative ...

Journal: :Energies 2022

Anthropogenic and natural actions cause internal external fractures in concrete. To recover these structures, bio-concretes have been developed with bacteria of the genus Bacillus. These microorganisms consume calcium lactate, synthesize carbonate biomineralize CaCO3 crystals within structures The aim present study was to construct equipment, denominated “Cascade System for Biomineralization Ce...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Wei Lin Greig A Paterson Qiyun Zhu Yinzhao Wang Evguenia Kopylova Ying Li Rob Knight Dennis A Bazylinski Rixiang Zhu Joseph L Kirschvink Yongxin Pan

Microbes that synthesize minerals, a process known as microbial biomineralization, contributed substantially to the evolution of current planetary environments through numerous important geochemical processes. Despite its geological significance, the origin and evolution of microbial biomineralization remain poorly understood. Through combined metagenomic and phylogenetic analyses of deep-branc...

2004
Jae-Woo Kim Sang H. Choi Peter T. Lillehei Glen C. King James R. Elliott Sang-Hyon Chu Yeonjoon Park Gerald D. Watt

ABSRACT Nanoparticle arrays biologically derived from an electrochemicallycontrolled site-specific biomineralization were fabricated on a gold substrate through the immobilization process of biomolecules. The work reported herein includes the immobilization of ferritin with various surface modifications, the electrochemical biomineralization of ferritins with different inorganic cores, the fabr...

Journal: :Geobiology 2013
W F Wu F P Wang J H Li X W Yang X Xiao Y X Pan

In this study, iron reduction and concomitant biomineralization of a deep-sea iron reducing bacterium (IRB), Shewanella piezotolerans WP3, were systematically examined at different hydrostatic pressures (0.1, 5, 20, and 50 MPa). Our results indicate that bacterial iron reduction and induced biomineralization are influenced by hydrostatic pressure. Specifically, the iron reduction rate and exten...

2012
Dirk Rothenstein Johannes Baier Thomas D Schreiber Vera Barucha

Background: The salt tolerance of halophilic bacteria make them promising candidates for technical applications, like isolation of salt tolerant enzymes or remediation of contaminated saline soils and waters. Furthermore, some halophilic bacteria synthesize inorganic solids resulting in organic–inorganic hybrids. This process is known as biomineralization, which is induced and/or controlled by ...

2005
Dennis A. Bazylinski Richard B. Frankel

As stated in an Chapter 4, prokaryotes of both Domains or Superkingdoms, the Bacteria and the Archaea, mediate the formation of a large number of diverse minerals. They are known to do this either through biologically induced mineralization (BIM) (Lowenstam 1981) (the subject of Chapter 4 in this volume; Frankel and Bazylinski 2003) or biologically controlled mineralization (BCM). The latter ha...

Journal: :PLoS biology 2016
David M Hershey Xuefeng Ren Ryan A Melnyk Patrick J Browne Ertan Ozyamak Stephanie R Jones Michelle C Y Chang James H Hurley Arash Komeili

Many living organisms transform inorganic atoms into highly ordered crystalline materials. An elegant example of such biomineralization processes is the production of nano-scale magnetic crystals in magnetotactic bacteria. Previous studies implicated the involvement of two putative serine proteases, MamE and MamO, during the early stages of magnetite formation in Magnetospirillum magneticum AMB...

2016
Nina Stitz Sabine Eiben Petia Atanasova Neus Domingo Andreas Leineweber Zaklina Burghard Joachim Bill

Biomineralization in general is based on electrostatic interactions and molecular recognition of organic and inorganic phases. These principles of biomineralization have also been utilized and transferred to bio-inspired synthesis of functional materials during the past decades. Proteins involved in both, biomineralization and bio-inspired processes, are often piezoelectric due to their dipolar...

Journal: :ACS applied materials & interfaces 2017
Zhou Yang Li Lu Christopher J Kiely Bryan W Berger Steven McIntosh

Biomineralization is the process by which biological systems synthesize inorganic materials. Herein, we demonstrate an engineered cystathionine γ-lyase enzyme, smCSE that is active for the direct aqueous phase biomineralization of CdSe and CdSe-CdS core-shell nanocrystals. The nanocrystals are formed in an otherwise unreactive buffered solution of Cd acetate and selenocystine through enzymatic ...

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