Peptide-Mediated Interactions with Inorganic Nanomaterials

Peptide-mediated interactions harness the intrinsic ability of defined amino acid sequences to recognise, bind and organise inorganic surfaces at the nanoscale. These interactions are driven by a combination of electrostatic forces, hydrophobic contacts and specific side‐chain coordination, enabling peptides to control nucleation, growth and assembly of metal, metal oxide and mineral nanostructures. Advances in combinatorial selection methods, computational design and high‐resolution characterisation have revealed how short peptides can direct facet‐specific binding, modulate interfacial water structure and impart functional properties such as catalytic activity, electronic conductivity and biocompatibility. The resulting hybrid materials find applications in catalysis, sensing, biomedicine and environmental remediation, illustrating the global relevance of peptide‐guided inorganic nanomaterial assembly.

Research from Nature Portfolio

In recent work on gold–titania hybrid photocatalysts, site‐specific mineralisation was achieved by tethering inorganic‐precipitating peptides to defined positions on DNA scaffolds. Control over peptide density and DNA length permitted tuning of elemental composition at the ten‐nanometre scale, yielding photocatalytic activity under visible‐light irradiation that surpasses commercial counterparts. Complementary simulation studies have elucidated the molecular recognition of titanium dioxide nanoparticles by the full complement of standard amino acids, revealing distinct binding modes for charged residues and water‐mediated bridges that govern adsorption energetics. Foundational efforts in biomining have exploited peptides selected for molybdenite affinity to decorate magnetic nanoparticles, enabling selective capture and release of MoS₂ under harsh environmental conditions and demonstrating a recyclable route to metal extraction.

Peptide-Mediated Interactions with Inorganic Nanomaterials publication trend

The graph below shows the total number of articles in peptide-mediated interactions with inorganic nanomaterials across all publications each year (not limited to Nature Index journals).

Technical terms

Solid-binding peptide (SBP): A peptide sequence with high affinity for non‐covalent adsorption onto inorganic surfaces.

Phage display: A combinatorial technique that presents peptide libraries on bacteriophage surfaces to identify sequences with target specificity.

Biomineralization: The biologically controlled formation of inorganic compounds mediated by proteins or peptides.

Nanocomposite: A hybrid material combining nanoscale inorganic components with organic molecules to achieve novel or enhanced functions.

Photocatalysis: A process in which a catalyst activated by light accelerates chemical reactions, often applied to energy conversion and pollutant degradation.

References

1. Material-specific binding peptides empower sustainable innovations in plant health, biocatalysis, medicine and microplastic quantification. Chemical Society Reviews (2024).
2. Phage Display Screening as a Rational Approach to Design Additives for Selective Crystallization Control in Construction Systems. Advanced Materials (2023).
3. Biomedical applications of solid-binding peptides and proteins. Materials Today Bio (2023).
4. Facet selectivity in gold binding peptides: exploiting interfacial water structure. Chemical Science (2015).
5. Elemental composition control of gold-titania nanocomposites by site-specific mineralization using artificial peptides and DNA. Communications Chemistry (2021).
6. An In Silico study of TiO2 nanoparticles interaction with twenty standard amino acids in aqueous solution. Scientific Reports (2016).
7. Biomining of MoS2 with Peptide-based Smart Biomaterials. Scientific Reports (2018).