KR – Page 52 – TechConnect Briefs

A Piezoelectric Micro-Cantilever Bio-Sensor Using the Mass-Micro-Balancing Technique with Self-Excitation

Lee Y., Lim G., Moon W., Pohang University of Science and Technology, KR

A new bio-sensor was developed in order to use in a LOC(Lab-On-a-Chip). The sensor detects the change in the resonance frequency of a micro cantilever with a piezoelectric film(PZT). This is the so-called mass micro-balancing [...]

CNTs-Insulator- Semiconductor System for Chemical and Biological Sensor Applications

Cheon J-H, Lin Q., Kong B-D, Kang D.W., Kim L., Suh J.S., Park Y.J., Min H.S., Seoul National University, KR

In this paper, an Electrolyte-CNTs-Insulator-Semiconductor capacitor has been prepared due to compatibility with CMOS technology. To prepare this capacitor, we used the bonding technique to combine the MWNT array.It shows that the surface potential modulation [...]

Effect of Length of Biotin Modified n-Alkanethiolates on the Formation of a Self-Assembled Streptavidin-Biotin Monolayer on a Gold Surface

Kim D.-J., Cho E.C., Koo K.-K., Sogang University, KR

The molecular recognition between streptavidin and biotin makes the streptavidin-biotin system very useful in a wide range of biotechnological applications. Currently, biotin-modified n-alkanethiolates have been extensively studied to create a wide variety of self-assembled monolayers [...]

Signal Amplification of Surface Plasmon Resonance based on Gold Nanoparticle-Antibody Conjugate and its Application to Protein Array

Lee D-B, Lee W., Lee D-B, Lee W., Kim Y-W., Choi J.W., Sogang University, KR

Nanoparticles have offered many diverse capabilities in bioanalysis and biotechnological applications, due to the intrinsic properties of nanoparticle that is distinguished from bulk materials. The integration of nanoparticle, which exhibit unique electronic, photonic, and catalytic [...]

Protein Array Fabricated by Micro-Contact Printing Method for Detection of Marker Protein to Genetically Modified Organisms

Lee W., Paek S-H, Choi J.W., Sogang Univerisity, KR

For the past decade, microarray technology has evolved from genomics to proteomics. This trend offers several advantages. In small volumes, biochemical reactions may not be diffusion-limited and may thus be more efficient; less reagent and [...]

Development of Nano-sized Protein Arrays using Block Copolymer Self-Assemblies

Jung H-T, Jung J-M, Kwon K.Y., Ha T-H, Chung B.H., Jung H-T, Jung J-M, Korea Advanced Institute of Science and Technology, KR

The single molecule approach is potentially of great technological interest as a complementary means to obtain information about protein conformation or molecular interaction. The measurement for molecular interaction in single molecule level requires that the [...]

Water-Soluble, Carboxyl-Modified Silicon Nanoparticles

Lee S., Cho W-J, Korea Institute of Science and Technology, KR

Since silicon has both the well-known chemistry and the industrial benefits of non-toxic and low cost, an interest in Si nanoparticles has rapidly increased. We will discuss a practical surface modification of Si nanoparticles prepared [...]

Nano-structured Chitosan Self-Aggregates as a Drug Delivery Carrier

Bae M.S., Kwon I.C., Jeong S.Y., Lee K.Y., Hanyang University, KR

A number of novel delivery systems have been developed including the entrapment of drugs, proteins, antigens, or genes in small vesicles or within polymeric matrices. Colloidal delivery systems such as liposomes, microemulsions, and polymeric micelles [...]

Fabrication of Metallic Nano-stamper and Replication of Nano-patterned Substrate for Patterned Media

Kim Y., Kim Y.J., Lee N., Kim Y., Kim Y.J., Kang S., Yonsei University, KR

With increasing demand for ultra high-density information storages, patterned media has received much attention as a solution to overcome the limits of conventional continuous magnetic media. Current methods to fabricate the patterned media are to [...]

Conjugation of DNA to Streptavidin-coated Quantum Dots for the Real-time Imaging of Gene Transfer into Live Cells

Kim J.K., Lim S.H., Lee Y., Shin Y.S., Chung C., Yoo J.Y., Chang J.K., Digital Bio Technology, Co, KR

We have developed the method for the conjugation of biotinylated DNA to streptavidin-coated quantum dots (QDs). QD-DNA conjugates and a highly sensitive fluorescence imaging technique are adopted to visualize gene transport across the membrane of [...]