Yung Doug Suh

TL;DR: In this article, a fine metal tip brought to within a few nanometers of a molecular film was found to give strong enhancement of Raman scattered light from the sample, which can be used for molecular analysis with excellent spatial resolution.

TL;DR: Atomic-force-microscope-correlated nano-Raman measurements of individual dumbbell structures demonstrate that Raman signals can be repeatedly detected from single-DNA-tethered nanodumbbells and open avenues for the high-yield synthesis of optically active smart nanoparticles and structurally reproducible nanostructure-based single-molecule detection and bioassays.

TL;DR: It is shown that DNA on gold nanoparticles facilitates the formation of well-defined gold nanobridged nanogap particles (Au-NNP) that generate a highly stable and reproducible SERS signal.

TL;DR: M M U N I Nonblinking and Nonbleaching Upconverting Nanoparticles as an Optical Imaging Nanoprobe and T1 Magnetic Resonance Imaging Contrast Agent C A T IO N By Yong Il Park, Jeong Hyun Kim, Kang Taek Lee, Ki-Seok Jeon, Hyon Bin Na, Jung Ho Yu, Hyung Min Kim, Nohyun Lee, Seung Hong Choi, Sung-Il Baik, Hyoungsu Kim and Seung Pyo Park, Beom-Jin Park, Young Woon Kim

TL;DR: This work has shown that the use of NIR excitation minimizes adverse photoinduced effects such as cellular photodamage and the autofluorescence background and enables the establishment of a novel UCNP-based platform for wide-field two-photon microscopy.