ArticleInternational journal of molecular sciences2020
Amino-Functionalized Nitrogen-Doped Graphene-Quantum-Dot-Based Nanomaterials with Nitrogen and Amino-Functionalized Group Content Dependence for Highly Efficient Two-Photon Bioimaging.
Article in International journal of molecular sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- In vitro toxicity assessment of graphene quantum dots using a 3D HepG2 model.Archives of toxicology · 2026Article
- Graphene quantum dot-crafted nanocomposites: shaping the future landscape of biomedical advances.Discover nano · 2024Review
- Multifunctional carbon nanomaterials for diagnostic applications in infectious diseases and tumors.Materials today. Bio · 2022Review
- Production of nitrogen-doped carbon quantum dots with controllable emission wavelength, excellent sensing of FeRSC advances · 2021Article
- A review on the cytotoxicity of graphene quantum dots: from experiment to simulation.Nanoscale advances · 2021Review
- Facile Synthesis of Surface-Modified Carbon Quantum Dots (CQDs) for Biosensing and Bioimaging.Materials (Basel, Switzerland) · 2020Article
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7 authors.
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Abstract
We fabricated nanomaterials comprising amino-functionalized and nitrogen-doped graphene quantum dots (amino-N-GQDs) and investigated their photostability and intrinsic luminescence in the near-infrared spectrum to determine their suitability as contrast agents in two-photon imaging (TPI). We observed that amino-N-GQDs with a higher amount of bonded nitrogen and amino-functionalized groups (6.2%) exhibited superior two-photon properties to those with a lower amount of such nitrogen and groups (4.9%). These materials were conjugated with polymers containing sulfur (polystyrene sulfonate, PSS) and nitrogen atoms (polyethylenimine, PEI), forming amino-N-GQD-PSS-PEI specimens (amino-N-GQD-polymers). The polymers exhibited a high quantum yield, remarkable stability, and notable two-photon properties and generated no reactive oxygen species, rendering them excellent two-photon contrast agents for bioimaging. An antiepidermal growth factor receptor (Ab
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