Korea Research Institute of Standards and Science

Lg Chem, Ltd

Virginia Tech Intellectual Properties, Inc.

Eun-Ah You

Wansun Kim

Tae Geol Lee

Tae-Hoon Kim

Cheol-Hee Park

O-Jong Kwon

Hyun-Woo Choi

Byung-Kyu Lim

Zhou Wei

Wonil Nam

Provided is a Raman-active particle which is a Raman-active particle for surface-enhanced Raman analysis, the particle including: a spherical plasmonic metal core; a plasmonic metal shell having surface unevenness; and a self-assembled monolayer which is bonded to each of the core and the shell and positioned between the core and the shell, and includes a Raman reporter.

Raman-active particle for surface-enhanced Raman scattering and method of producing the same

The present disclosure relates to a surface-enhanced Raman spectroscopy complex probe capable of effectively detecting a catecholamine compound even at extremely low concentrations. The complex probe includes a nanolaminate including a nanogap and metal nanoparticles. In this case, the nanolaminate and the metal nanoparticles are modified to a compound that may be bound to each functional group included in catecholamine, and thus, catecholamine included in an analyte is doubly recognized by the complex probe. In addition, since a hotspot emitting a strong SERS signal is formed by a nanogap included in a nanolaminate, it is possible to effectively detect a catecholamine compound even at extremely low concentrations.

Digital surface-enhanced Raman spectroscopy sensing platform

Provided is a method of preparing Raman-active nanoparticles, which includes a) preparing a metal nanocore having a nano-star shape from a first reaction solution in which a first metal precursor is mixed with a buffer solution; b) fixing a Raman reporter in the metal nanocore; and c) forming a metal shell, which surrounds the nanocore in which the Raman reporter is fixed, from a second reaction solution in which a second metal precursor is mixed with the nanocore in which the Raman reporter is fixed. The Raman reporter has a binding affinity for each of a first metal of the metal nanocore and a second metal of the metal shell.

Raman-active nanoparticles and method of preparing the same

Provided is a method of preparing composite nanoparticles, which includes: a) preparing a metal nanocore having a nano-star shape from a first reaction solution in which a first metal precursor is mixed with a first buffer solution; b) fixing a Raman reporter in the metal nanocore; and c) forming a metal shell, which surrounds the nanocore in which the Raman reporter is fixed, from a second reaction solution in which the nanocore in which the Raman reporter is fixed, and a second metal precursor are mixed with a second buffer solution.

Composite nanoparticles and method of preparing the same

Provided is a method for manufacturing a transparent substrate according to an exemplary embodiment of the present invention including: a) forming a photoresist layer satisfying D=m*(&#x3bb;/2n); b) manufacturing a ring-shaped pattern by exposing the photoresist layer and developing the exposed photoresist layer, using a photo mask including a transparent base and a plate-type metal dot formed contacting a light emitting surface of the transparent base; c) manufacturing a second mold to which the ring-shaped pattern is reversely transferred by using a substrate on which the ring-shaped pattern is formed as a first mold; and d) manufacturing the transparent substrate in which a ring-shaped transparent protrusion is integrally formed with the transparent base by filling a liquefied transparent resin in the second mold and curing the transparent resin and removing the second mold to transfer the ring-shaped pattern.

Method for manufacturing transparent substrate and method for manufacturing surface enhanced Raman scattering substrate using the same

Provided is a photolithography method, including: a) forming a photoresist layer satisfying D=m*(&#x3bb;/2n) (D is a thickness of the photoresist layer, n is a refractive index of the photoresist, &#x3bb; is a wavelength of irradiated light at the time of exposure, and m is a natural number of 1 or more) on a substrate; and b) manufacturing a photoresist pattern having a ring shape by exposing the photoresist layer and developing the exposed photoresist layer using a photo mask including a transparent substrate and a plate-type metal dot contacting a light emitting surface of the transparent substrate.

Photolithography method

An apparatus for dipping a substrate includes: a body having an internal plate formed therein, and including a backing plate provided over the internal plate; a crucible accommodating an aqueous solution therein and provided over the backing plate; a crucible driving unit provided in the body and connected to the crucible to move the crucible in a horizontal direction or a vertical direction of the body; a support having a lower end to which a substrate is fixed; a support driving unit provided to an upper side of the body and connected to the support to drive the support in a length direction of the support or rotate the support in the vertical direction of the body; and a controlling unit connected to the crucible driving unit and the support driving unit to control driving of the crucible driving unit and the support driving unit.

Apparatus for dipping substrate

Disclosed is a new compound semiconductor material which may be used for thermoelectric material or the like, and its applications. The compound semiconductor may be represented by Chemical Formula 1 below: Chemical Formula 1 &#x3c;Chemical Formula 1&#x3e; BiTeSeInMwhere, in Chemical Formula 1, M is at least one selected from the group consisting of Cu, Fe, Co, Ag and Ni, 2.5&#x3c;x&#x3c;3.0, 3.0&#x2266;a&#x3c;3.5, 0&#x3c;y and 0&#x2266;z.

Growing community of inventors

Daejeon, South Korea

Eun-Ah You