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Cited by 109Adsorption and biosorption for pollutant removalHeavy Metal Pollution RemediationCoagulation and Flocculation Studies

The DOI matches its Crossref record; 46 of the 47 references it cites were found in a registry or an index.

Released polysaccharides (RPS) from Cyanothece sp. CCY 0110 as biosorbent for heavy metals bioremediation: interactions between metals and RPS binding sites

Mota, Rita, Rossi, Federico, Andrenelli, Luisa, Pereira, Sara Bernardes, De Philippis, Roberto, Tamagnini, Paula·2016·Applied Microbiology and Biotechnology
DOI 10.1007/s00253-016-7602-9
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Abstract

Bioremediation of heavy metals using microorganisms can be advantageous compared to conventional physicochemical methods due to the use of renewable resources and efficiencies of removal particularly cations at low concentrations. In this context, cyanobacteria/cyanobacterial extracellular polymeric substances (EPS) emerge as a valid alternative due to the anionic nature and particular composition of these polymers. In this work, various culture fractions of the unicellular cyanobacterium Cyanothece sp. CCY 0110 were employed in bioremoval assays using three of the most common heavy metal pollutants in water bodies-copper, cadmium, and lead-separately or in combined systems. Our study showed that the released polysaccharides (RPS) were the most efficient fraction, removing the metal(s) by biosorption. Therefore, this polymer was subsequently used to evaluate the interactions between the metals/RPS binding sites using SEM-EDX, ICP-OES, and FTIR. Acid and basic pretreatments applied to the polymer further improve the process efficiency, and the exposure to an alkaline solution seems to alter the RPS conformation. The differences observed in the specific metal bioremoval seem to be mainly due to the RPS organic functional groups available, mainly carboxyl and hydroxyl, than to an ion exchange mechanism. Considering that Cyanothece is a highly efficient RPS-producer and that RPS can be easily separated from the culture, immobilized or confined, this polymer can be advantageous for the establishment/improvement of heavy metal removal systems.

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  1. Sampedro MA, Blanco A, Llama MJ, Serra JL (1995) Sorption of heavy metals to Phormidium laminosum biomass. Biotechnol Appl Biochem 22:355–366

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Metadata

Authors
Mota, R., Rossi, F., Andrenelli, L., Pereira, S. B., De Philippis, R., & Tamagnini, P.
Affiliations
  • Universidade do Porto (PT)
  • University of Florence (IT)
Corresponding author
Tamagnini, Paula
ORCID
Venue
Applied Microbiology and Biotechnology
Publisher
Springer Science and Business Media LLC
Published
2016-05-18
Volume
100
Issue
17
Pages
7765-7775
ISSN
  • 0175-7598 (ISSN-L)
  • 1432-0614
DOI
10.1007/s00253-016-7602-9
OpenAlex
W2406032890
Cited by
109
References
47
Citations by year
2026: 5 · 2025: 12 · 2024: 20 · 2023: 13 · 2022: 16 · 2021: 18 · 2020: 8 · 2019: 7 · 2018: 6 · 2017: 2 · 2016: 2
FWCI
3.36
Type
journal article
Language
en
Open access
closed
Licence
www.springer.com/tdm (tdm)
Locations
  • Applied Microbiology and Biotechnology (publishedVersion)
  • PubMed (publishedVersion)
  • CINECA IRIS Institutial research information system (University of Pisa) (submittedVersion)
  • Florence Research (University of Florence) (submittedVersion)
Funders
Fundação para a Ciência e a Tecnologia (FCOMP-01-0124-FEDER-028314 (PTDC/BIA-MIC/2889/2012), co-funded by FEDER funds within PT2020 with unit number 4293, SFRH/BD/84914/2012, SFRH/BDP/72400/2010)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Environmental Science › Water Science and Technology › Heavy Metal Pollution Remediation
  • Physical Sciences › Environmental Science › Water Science and Technology › Coagulation and Flocculation Studies
Keywords
biosorption, heavy metal bioremediation, copper removal, cadmium removal, lead removal, metal binding sites, chain conformation, carboxyl and hydroxyl groups, ion exchange, water pollution
MeSH terms
Binding Sites, Biodegradation, Environmental, Cadmium, Copper, Lead, Polysaccharides, Bacterial, Water Pollutants, Chemical, Metals, Heavy, Cyanothece

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