Gene/Protein Disease Symptom Drug Enzyme Compound
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Both noncovalent and covalent encapsulations of active biomolecules, for example, proteins and oligonucleotides, for a new biosensor matrix in an in situ bioorthogonal hydrogel formation via a strain-promoted azide-alkyne cycloaddition reaction were investigated. Unspecific interaction between the gel and the biomolecules as well as protein denaturation was prevented by the bioorthogonal gel components, which ensure a uniform aqueous environment in the hydrogel network. No leaching of the active biomolecules was observed. Additionally, a much higher and also adjustable loading of biomolecules in the hydrogel matrix was achieved compared to conventional biosensor surfaces, where the sensor molecules are immobilized on monolayers (2D surfaces) or brushlike structures (3D surfaces). Spotting experiments of the hydrogel confirm the possibility to use this new surface for microarray-based multiplex applications which require very high signal-to-noise ratios.
ACS Appl Mater Interfaces 2018 Apr 04
PMID:Bioorthogonal in Situ Hydrogels Based on Polyether Polyols for New Biosensor Materials with High Sensitivity. 2951 19