Peptides as biosorbents – Promising tools for resource recovery

Sorption of aqueous amino acid species on sulphidic mineral surfaces—DFT study and insights on biosourced‐reagent mineral flotation

“…Although their first applications in the mining industry can be traced back to the 1950s when they were used for harnessing bacteria for copper extraction, [ 8,9 ] biotechnological approaches have been the most promising advancements based on integral green chemistry methods. [ 1,8 ] Bio‐based routes in hydrometallurgical leaching operations as well as in mineral beneficiation processes, such as flotation and flocculation, are known to be able to achieve, with environmental friendliness as a bonus, performances comparable to traditional reagents. [ 1,8,10–12 ] As an example, peptides as bio‐sourced reagents have shown promising results in froth flotation applications.…”

“…[ 1,8 ] Bio‐based routes in hydrometallurgical leaching operations as well as in mineral beneficiation processes, such as flotation and flocculation, are known to be able to achieve, with environmental friendliness as a bonus, performances comparable to traditional reagents. [ 1,8,10–12 ] As an example, peptides as bio‐sourced reagents have shown promising results in froth flotation applications. [ 1,8 ] Peptides consist of short chains of natural amino acids linked together by peptidic, or so‐called amide, bonds to form di‐, tri‐, tetra and polypeptides.…”

“…[ 1,8,10–12 ] As an example, peptides as bio‐sourced reagents have shown promising results in froth flotation applications. [ 1,8 ] Peptides consist of short chains of natural amino acids linked together by peptidic, or so‐called amide, bonds to form di‐, tri‐, tetra and polypeptides. [ 13 ] Peptide sequences in combinatorial display technologies like bacteriophage, that is, bacteria‐infecting virus, and cell display [ 14,15 ] can be kept in conformations that retain iological activity.…”

Removal of Lead from Water Solution by Reusable Magnetic Adsorbent Incorporating Selective Lead-Binding Peptide

“…Therefore, peptides with an affinity to specific metals can be used as metal binding moieties from aqueous solution [15,16]. Various peptide sequences possessing an affinity to metals, such as nickel and cobalt, are summarized, where amino acid composition and theoretical pI was analyzed [15]. In a previous study, a lead-binding peptide sequence (TNTLSNN) was screened by chromatographic biopanning [17].…”

“…The 7-mer peptide showed a selective affinity to Pb(II) while displaying low binding affinities to different divalent metal ions, such as Ni(II), Cu(II), Co(II), and Fe(II). Moreover, there are nearly unlimited target materials (i.e., most options other than lead) that can be chosen from, and a peptide with affinity to a specific target can be identified through a biopanning procedure [15]. Therefore, the peptide-based adsorbent can potentially be applied for the selective removal of various target materials.…”