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Fluorescent Glyco Single-Chain Nanoparticle-Decorated Nanodiamonds
Kilian N R Wuest1,2, Hongxu Lu2, Donald S Thomas3
1Macromolecular Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Karlsruhe, Germany.
ACS Macro Letters
|June 2, 2022
Summary
Researchers created fluorescent glyco single-chain nanoparticles (SCNPs) using light-induced polymer collapse. These SCNPs were then attached to nanodiamonds, showing potential for bioimaging applications.
Area of Science:
- Polymer Chemistry
- Nanotechnology
- Biomaterials Science
Background:
- Glycopolymer self-assembly is crucial for developing advanced nanomaterials.
- Fluorescent nanoparticles offer unique properties for biological applications.
- Functionalizing nanodiamonds with biomolecules enhances their utility.
Purpose of the Study:
- To develop a novel method for creating fluorescent glyco single-chain nanoparticles (SCNPs) via light-induced collapse.
- To functionalize nanodiamonds with these SCNPs for potential bioimaging.
- To characterize the resulting hybrid nanoparticles and assess their biocompatibility.
Main Methods:
- Synthesis of mannose-based glycopolymer precursors with photoactive tetrazole and maleimide groups.
- UV irradiation in dilute aqueous solution to induce intramolecular cycloaddition and SCNP formation.
- Adsorption of SCNPs onto nanodiamonds and characterization using various techniques.
- In vitro toxicity assessment in mouse macrophages and confocal fluorescence microscopy imaging.
Main Results:
- Successful generation of fluorescent glyco SCNPs through light-induced intramolecular cyclization.
- Demonstrated successful coating of nanodiamonds with SCNPs at varying densities.
- Characterized hybrid nanoparticles for size, functionality, and lectin-binding properties.
- Confirmed non-toxicity of SCNP-coated nanodiamonds in RAW 264.7 macrophages.
Conclusions:
- Light-induced collapse offers an efficient route to fluorescent glyco SCNPs.
- SCNP-coated nanodiamonds are biocompatible and suitable for cellular imaging.
- This approach provides a versatile platform for developing functional nanobiomaterials.
