Pristine graphene quantum dots and graphene oxide quantum dots are synthesized by chemical exfoliation from graphite nanoparticles with high uniformity in terms of shape (circle), size (less than 4 nm), and thickness (monolayer). The origin of the blue and green photoluminescence of GQDs and GOQDs is attributed to intrinsic and extrinsic energy states, respectively. Further d...
ABSTRACT: Fumaric acid is a naturally occurring organic acid that is an intermediate of the tricarboxylic acid cycle. Fungal species belonging to Rhizopus have traditionally been employed for the production of fumaric acid. In this study, Escherichia coli was metabolically engineered for the production of fumaric acid under aerobic condition. For the aerobic production of fumaric acid, t...
Multicolor patterning using holographic woodpile photonic crystals at visible wavelengths
Sung-Gyu Park*a and Seung-Man Yang*a
Nanoscale, 2013,5, 4110-4113
DOI: 10.1039/C3NR00644A Received 05 Feb 2013, Accepted 15 Mar 2013First published online 19 Mar 2013
High-quality woodpile structures with photonic band gaps in the visible wavelength ...
Metabolic engineering of Escherichia coli using synthetic small regulatory RNAs
Dokyun Na,1, 2 Seung Min Yoo,1, 2 Hannah Chung,1 Hyegwon Park,1 Jin Hwan Park1, 2 & Sang Yup Lee
Nature BiotechnologyYear published:(2013)DOI:doi:10.1038/nbt.2461Received17 January 2012 Accepted22 November 2012 Published online20 January 2013
Small regulatory RNAs (...
Rational Design of Escherichia coli for l-Isoleucine Production
Jin Hwan Park , Jae Eun Oh , Kwang Ho Lee , Ji Young Kim , and Sang Yup Lee
Metabolic engineering of Escherichia coli was performed to construct a 100% rationally engineered strain capable of overproducing l-isoleucine, an important branched-chain amino acid. The thrABC (encoding l-threon...