Jong Hyun Choi

Address:

3707 Nicholas Dr APT B4, Lafayette, IN 47909

VIN:

2T3YF4DV8AW043996

Make:

TOYOTA

Model:

RAV4

Year:

2010

US Patent:

20130105328, May 2, 2013

Filed:

Sep 14, 2012

Appl. No.:

13/620554

Inventors:

Jong Hyun Choi - West Lafayette IN, US
Jonathan C. Claussen - Lafayelle IN, US
Alfred R. Diggs - Chicago IL, US
Jin Shi - San Diego CA, US

Assignee:

Purdue Research Foundation - West Lafayette IN

International Classification:

C12Q 1/00
C12Q 1/68

US Classification:

205109, 20440301, 20440314, 2057775, 977750, 977892, 977904

Abstract:

Glucose and ATP biosensors have important applications in diagnostics and research. Combining single-walled carbon nanotubes (SWCNTs) with Pt nanoparticles can significantly enhance the performance of electrochemical biosensors. This disclosure illustrates the use of single-stranded DNA (ssDNA) to modify SWCNTs to increase SWCNT solubility in water. Multiple embodiments with this configuration allows for exploration of new schemes of combining ssDNASWCNT and Pt black in aqueous media systems. These embodiments resulted in a nanocomposite with enhanced biosensor performance. The ssDNA-SWCNT/Pt black nanocomposite constructed by a layered scheme proved most effective in terms of biosensor activity. The key feature of this structure and method of use is the exploitation of ssDNASWCNTs as molecular templates for Pt black electrodeposition. Glucose and ATP microbiosensors fabricated utilizing this structure and method of use exhibited high sensitivity, wide linear range and low limit of detection.

US Patent:

20150097107, Apr 9, 2015

Filed:

Mar 19, 2013

Appl. No.:

14/386003

Inventors:

- Hwaseong-si, Gyeonggi-do, KR
Bu Yeob Yoo - Hwaseong-si, KR
Jong Lip Choi - Fremont CA, US

International Classification:

H05G 2/00

US Classification:

2502081, 250504 R

Abstract:

Disclosed is an apparatus for generating EUV light by means of plasma, the apparatus comprising: a laser source for outputting laser; a tunable laser mirror (TLM) for reflecting laser beams from the laser source; a focusing mirror (FM) for focusing the laser beams reflected from the TLM; a gas cell for generating EUV light by forming a plasma from the laser beams and reaction gas, the laser being incident on the gas cell after being focused on the TM, and the reaction gas being supplied by a gas supply line for a plasma-induced path corresponding to a section on the gas cell in which the focal point of the incident laser occurs; and a vacuum chamber for accommodating the TLM, FM and the gas cell in a state of vacuum. The present invention having features as discussed has the benefit of allowing simple but effective generation of EUV light.