| The aim of this paper is to explore novel routes for fabrication of chalcogenides nanocomposites by bio-inspired strategies integrating biotemplate, biomineralization, biomimetism. A series of chalcogenides nanomaterials including quantum dots, nanoclusters, nanocubes and nanopolyhedrons, were successfully prepared on the eggshell membrane (ESM) through different bio-inspired approaches, further their PL properties were investigated intentively. The details can be summarized as following:1,PbSe, PbS nanomaterials were successfully in-situ synthesized on ESM in acid impregnants at room-temperature. Herein, ESM was introduced as active biosubstrate to be infused into Pb(Ac)2-HAc medium, Na2SeSO3 or Na2S solution to carry out a novel bio-inspired synthesis of PbSe nanoclusters and nanocubes, PbS floriated nanoclusters. The dipping time, the precursor concentration and its preserving time, could affect the size, morphologies, distribution, and assembly of PbSe, PbS nanocrystallites on ESM fibers.2,CdS, ZnS nanostructures were successfully synthesized on active ESM fibers in alkaline media by dipping ESM into CdCl2-NH3·H2O or Zn(Ac)2-NH3·H2O solution, Na2S solution, respectively. CdS and ZnS nanocrystallites could be formed, and grown-up, further assembled into incompact nanoclusters or nanopolyhedrons. The nucleation, growth and assembly were under the direction of functional biomacromolecules of amino acid residues of ESM fibers.3,The samples were characterized by UV-Vis and PL analysis, the results indicate these chalcogenides nanostructures own obvious quantum size effect. Compared with bulk materials, there are clear blue shifts in PL. Moreover, the size, morphology and structure could be affected by precursor concentration, dipping period, and so on, then indirectly influenced the PL properties of as-prepared hybrid chalcogenides-ESM nanocomposites. They have great applications on biomarkers, laser emitter, near infrared spectroscopy, and so on.
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