Influence of Gate Voltage Operation on Effective Mobility of Electrolyte-Gated Organic TransistorsMacromolecular Research - Tập 30 - Trang 707-711 - 2022
Vivian Nketia-Yawson, Benjamin Nketia-Yawson, Jea Woong Jo
Low-voltage operation has long been a beneficial characteristic of electrolyte-gated organic transistors (EGOTs) because of the high capacitance of the electrolyte dielectric layer. Operating below 3 V, several reported EGOTs have effective mobilities above 1 cm2V−1s−1 based on the recently introduced reliability factor for organic field-effect transistors (OFETs). In this study, we report on the ...... hiện toàn bộ
Optimization of chondrogenic differentiation of human adipose tissue-derived stem cells on poly(L-lactide-co-ɛ-caprolactone) scaffoldsMacromolecular Research - Tập 20 Số 7 - Trang 709-714 - 2012
Jung, Youngmee, Kim, Sang-Hee, Kim, Sang-Heon, Kim, Young Ha, Rhie, Jong Won, Kim, Soo Hyun
Mechanical stimuli should enhance cartilaginous tissue formation in elastic mechano-active poly(L-lactide-co-ɛ-caprolactone) (PLCL) scaffolds similar to what is observed in the body. The conditions for stem cell differentiation are also crucial for cartilage tissue engineering. Here, we investigate cartilaginous tissue formation of human adipose-tissue derived stem cells (hASCs)/hybrid scaffold co...... hiện toàn bộ
Bioadhesive PAA-PEG-PAA triblock copolymer hydrogels for drug delivery in oral cavityMacromolecular Research - Tập 18 - Trang 284-288 - 2010
Minh Khanh Nguyen, Doo Sung Lee
A series of poly(amidoamine)-poly(ethylene glycol)-poly(amidoamine) (PAA-PEG-PAA) triblock copolymers were designed and prepared to examine the factors affecting their sol-gel transition behavior. The physiochemical properties of the triblock copolymers were characterized by 1H NMR spectroscopy and gel permeation chromatography. The PAA-PEG-PAA copolymers underwent sol-gel transitions in solution ...... hiện toàn bộ
Gas separation properties of 6FDA-based polyimide membranes with a polar groupMacromolecular Research - Tập 11 - Trang 157-162 - 2003
Sang-Hee Park, Kwang-Je Kim, Won-Wook So, Sang-Jin Moon, Soo-Bok Lee
6FDA-based polyimides were prepared from the thermal imidization reaction of 6FDA with diamines of BAPAF, DAP, and DABA having a polar group of hydroxyl or carboxyl. Properties of the dense polyimide membranes were characterized and their gas permeation properties for H2, CO2, O2, N2, and CH4 were investigated. Permeabilities, diffusion coefficients and diffusivity selectivities of polar group-con...... hiện toàn bộ
Preparation and swelling characteristics of hydrogel from microbial poly(γ-glutamic acid) by γ-irradiationMacromolecular Research - Tập 13 - Trang 339-343 - 2005
Seong-Hyun Choi, Kyung-Sook Whang, Jong-Soo Park, Woo-Young Choi, Min-Ho Yoon
Microbial hydrogel was prepared by γ-irradiation of poly(γ-glutamic acid) (PGA) which was produced fromBacillus subtilis BS 62 and it’s physico-chemical characteristic was examined. The hydrogel, prepared from 10% PGA with the dose of 48 kGy, was swollen up to 1,370 times of specific water content as dry weight basis. The hydrogels obtained above the dose of 48 kGy appeared to have higher compress...... hiện toàn bộ