Publications by authors named "Hyunji Nam"
Article Synopsis
- Multi-functional nanoparticles, specifically colour-tunable GdEuTbO nanoparticles, can emit light in a range of colors from green to red, depending on their composition.
- These nanoparticles are treated with polyacrylic acid and 2,6-pyridinedicarboxylic acid to ensure long-lasting stability in solutions and enhanced light emission efficiency.
- Their impressive characteristics, such as long emission lifetimes and high efficiencies in both imaging and signal detection, make them particularly useful for biomedical applications and display technologies.
Article Synopsis
- Additive manufacturing has evolved to not only strengthen lightweight materials but also to create complex multi-material combinations that enhance functionality.
- This study introduces a new lamination method for laser-directed energy deposition (LDED) aimed at producing dense multi-material components using AISI 316L stainless steel and Inconel 625.
- The research involves tensile tests and detailed surface analyses of the fabricated specimens, revealing that mechanical properties vary based on lamination direction and order, impacting crack and pore formation.
Fluorescent nanoparticles used in biomedical applications should be stable in their colloidal form in aqueous media and possess a high quantum yield (QY). We report ultrasmall LnO (Ln = Eu, Tb, or Dy) nanoparticle colloids with high QYs in aqueous media. The nanoparticles are grafted with hydrophilic and biocompatible poly(acrylic acid) (PAA) to ensure colloidal stability and biocompatibility and with organic photosensitizer 2,6-pyridinedicarboxylic acid (PDA) for achieving a high QY.
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