An Efficient Peptide Screening Method for Mineral-Binding Peptides

In mineral processing, arsenic-bearing minerals are particularly difficult to separate from their non-arsenic counterparts because they possess similar surface properties. Peptides are well known for their target specificity and can offer a ‘green’ alternative to traditional flotation reagents. Howe...

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Main Authors: Lam Ian Ku, Liza Forbes, Susana Brito e Abreu
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Minerals
Subjects:
Online Access:https://www.mdpi.com/2075-163X/14/2/207
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author Lam Ian Ku
Liza Forbes
Susana Brito e Abreu
author_facet Lam Ian Ku
Liza Forbes
Susana Brito e Abreu
author_sort Lam Ian Ku
collection DOAJ
description In mineral processing, arsenic-bearing minerals are particularly difficult to separate from their non-arsenic counterparts because they possess similar surface properties. Peptides are well known for their target specificity and can offer a ‘green’ alternative to traditional flotation reagents. However, the use of peptide technologies in mineral processing for developing novel flotation reagents has not been explored. Hence, this work aims to develop a screening method to identify mineral-binding peptides as potential reagent candidates. It is hypothesised that peptides can selectively adsorb onto mineral surfaces, and this method can efficiently identify mineral-binding peptides with high specificity toward the target minerals. The methodology presented involves a selection of peptide candidates from existing literature that show affinity toward arsenic species. These peptides were tested for their adsorption performance onto selected mineral surfaces to evaluate their mineral selectivity under flotation conditions. The study demonstrates that the screening method developed is effective in identifying peptides that have an affinity for target minerals, in this case, arsenic minerals. The screening method can be applied to other minerals, thus, unlocking the potential for developing new reagent chemistries for use in mineral processing.
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spelling doaj.art-6e9ba4402dfb450d899b22428bd1c86d2024-02-23T15:28:45ZengMDPI AGMinerals2075-163X2024-02-0114220710.3390/min14020207An Efficient Peptide Screening Method for Mineral-Binding PeptidesLam Ian Ku0Liza Forbes1Susana Brito e Abreu2Julius Kruttschnitt Mineral Research Centre, Sustainable Minerals Institute, The University of Queensland, Indooroopilly, QLD 4068, AustraliaJulius Kruttschnitt Mineral Research Centre, Sustainable Minerals Institute, The University of Queensland, Indooroopilly, QLD 4068, AustraliaJulius Kruttschnitt Mineral Research Centre, Sustainable Minerals Institute, The University of Queensland, Indooroopilly, QLD 4068, AustraliaIn mineral processing, arsenic-bearing minerals are particularly difficult to separate from their non-arsenic counterparts because they possess similar surface properties. Peptides are well known for their target specificity and can offer a ‘green’ alternative to traditional flotation reagents. However, the use of peptide technologies in mineral processing for developing novel flotation reagents has not been explored. Hence, this work aims to develop a screening method to identify mineral-binding peptides as potential reagent candidates. It is hypothesised that peptides can selectively adsorb onto mineral surfaces, and this method can efficiently identify mineral-binding peptides with high specificity toward the target minerals. The methodology presented involves a selection of peptide candidates from existing literature that show affinity toward arsenic species. These peptides were tested for their adsorption performance onto selected mineral surfaces to evaluate their mineral selectivity under flotation conditions. The study demonstrates that the screening method developed is effective in identifying peptides that have an affinity for target minerals, in this case, arsenic minerals. The screening method can be applied to other minerals, thus, unlocking the potential for developing new reagent chemistries for use in mineral processing.https://www.mdpi.com/2075-163X/14/2/207arsenic mineralsflotationpeptidecollectorflotation reagentarsenopyrite
spellingShingle Lam Ian Ku
Liza Forbes
Susana Brito e Abreu
An Efficient Peptide Screening Method for Mineral-Binding Peptides
Minerals
arsenic minerals
flotation
peptide
collector
flotation reagent
arsenopyrite
title An Efficient Peptide Screening Method for Mineral-Binding Peptides
title_full An Efficient Peptide Screening Method for Mineral-Binding Peptides
title_fullStr An Efficient Peptide Screening Method for Mineral-Binding Peptides
title_full_unstemmed An Efficient Peptide Screening Method for Mineral-Binding Peptides
title_short An Efficient Peptide Screening Method for Mineral-Binding Peptides
title_sort efficient peptide screening method for mineral binding peptides
topic arsenic minerals
flotation
peptide
collector
flotation reagent
arsenopyrite
url https://www.mdpi.com/2075-163X/14/2/207
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