Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Cheol-Heon Yea"'
Publikováno v:
Colloids and Surfaces B: Biointerfaces. 112:387-392
Cell-based chips are an effective in vitro analysis tool; however, the sensitivity of the cell chip to biomaterials is high, which is crucial for immobilizing cells on the electrode surface without conductivity. In this study, we report on a cell chi
Publikováno v:
Biosensors and Bioelectronics. 41:192-198
A cell-based chip was recently developed and shown to be an effective in vitro tool for analyzing effect of environmental toxin on target cells. However, common cell chips are inappropriate for the detection of multiple environmental toxins. Here, we
Publikováno v:
Thin Solid Films. 518:661-667
Polyaniline emeraldine base (EB) coated indium–tin oxide (ITO) electrode was prepared for the construction of a cell-based chip. Ultrathin polyaniline PANI film on an ITO was electroactive at neutral pH without co-deposition of an acidic counterion
Publikováno v:
Current Applied Physics. 9:e76-e80
HepG2 cells have been immobilized on nanoscale self-assembled synthetic oligopeptide modified chip surface and subsequently used for anticancer drug screening. Nanoscale controlled self-assembled peptide layer was investigated by AFM (Atomic Force Mi
Autor:
Jeong-Woo Choi, Sang-Uk Kim, Junhong Min, Byung-Keun Oh, Cheol-Heon Yea, Ravindra Pratap Singh, Young Jun Kim, Shin-Geon Choi
Publikováno v:
Ultramicroscopy. 108:1390-1395
For making efficient bioelectronic device, we have developed novel immobilization method of cupredoxin azurin modified on gold (Au) surface. A recombinant protein with cysteine residue by using site-directed mutagenesis was designed and then directly
Autor:
Waleed A. El-Said, Sang-Uk Kim, Junhong Min, Bumhwan Lee, Cheol-Heon Yea, Byung-Keun Oh, Hyunhee Kim, Jeong-Woo Choi
Publikováno v:
Ultramicroscopy. 108:1144-1147
RGD peptide sequence is an effective cell recognition motif and used to enhance the cell adhesion on desired solid material for cell immobilization. We have synthesized CRGD, CRGD-multiple-armed peptide (MAP), RGD-MAP-C and evaluated their comparativ
Publikováno v:
Korean Journal of Chemical Engineering. 25:1115-1119
A novel immobilization method of blue copper protein azurin on a gold surface was developed without a chemical linker using recombinant technique. Azurin was recombined with a cysteine anchors by site-directed mutagenesis (SDM) and used to effect the
Autor:
Yusin Pak, Tae-Hyung Kim, Kholud Dardir, Gun Young Jung, Ki-Bum Lee, Cheol-Heon Yea, Jeong-Woo Choi, Brian Conley, Perry T. Yin, Sy-Tsong Dean Chueng
Publikováno v:
Advanced materials (Deerfield Beach, Fla.). 27(41)
A novel cell-based biosensing platform (Large-scale Homogeneous Nanoelectrode Arryas, LHONA) is developed using a combination of sequential laser interference lithography and electrochemical deposition methods. This enables the sensitive discriminati
Autor:
Mi-Ok Lee, Jeong-Woo Choi, Hyuk-Jin Cha, Kyeong-Jun Kim, Ho-Chang Jeong, Sung-Hwan Moon, Cheol-Heon Yea
Publikováno v:
Biomaterials. 75
Conventional methods for quantification of undifferentiated pluripotent stem cells such as fluorescence-activated cell sorting and real-time PCR analysis have technical limitations in terms of their sensitivity and recyclability. Herein, we designed
Publikováno v:
Advanced materials (Deerfield Beach, Fla.). 26(6)
Developing nanoparticles that target the cell’s nucleus is a promising approach in biological research because of the genetic information inside the nucleus. However, nuclear targeting is diffi cult to achieve because nanoparticles have to fi pass