Welcome to the Ulijn Group website. Our lab is focused on the use of simple versions of the molecular building blocks of life to produce materials and systems with controllable structural, photonic, electronic, and biological properties. These properties open up wide-ranging applications in energy, biomedicine, environmental protection, food, cosmetics, and personal care. [Group Members and Full Biography]
Ulijn Group at ASRC
The Advanced Science Research Center (ASRC) at the Graduate Center, CUNY, is a 200,000-square-foot facility in upper Manhattan that promotes collaborative, cutting-edge science research in five areas, including nanoscience. Its state-of the-art cleanroom and imaging and surface science facilities support nanoscale research that has broad implications for fields such as medicine, electronics, energy, and industry.
Supramolecular Catalysis Under pH Control
Chunqiu's latest paper shows reversible regulation of catalytic activity of supramolecular peptide catalyst achieved by conformational transition from random coil to β-hairpin by changing the pH, which results in the reversible formation of an ordered array of 'active sites' composed of hydrophobic binding pockets and catalytic histidine residues with significant esterase activity. The work provides a step toward formation of self-regulating supramolecular assemblies.