Browsing Waterloo Institute for Nanotechnology by Author "Zhang, Zijie"
Now showing items 1-7 of 7
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Co-immobilization of multiple enzymes by metal coordinated nucleotide hydrogel nanofibers: improved stability and an enzyme cascade for glucose detection
Liang, Hao; Jiang, Shuhui; Yuan, Qipeng; Li, Guofeng; Wang, Feng; Zhang, Zijie; Liu, Juewen (Royal Society of Chemistry, 2016-03-21)Preserving enzyme activity and promoting synergistic activity via co-localization of multiple enzymes are key topics in bionanotechnology, materials science, and analytical chemistry. This study reports a facile method for ... -
Gold nanoparticles as dehydrogenase mimicking nanozymes for estradiol degradation
Zhang, Zijie; Bragg, Leslie M.; Servos, Mark R.; Liu, Juewen (Elsevier, 2019-09)Nanozyme catalysis has been mainly focused on a few chromogenic and fluorogenic substrates, while environmentally and biologically important compounds need to be tested to advance the field. In this work, we studied oxidation ... -
Improving molecularly imprinted nanogels by pH modulation
Zhang, Zijie; Liu, Juewen (Royal Society of Chemistry, 2015-10-16)Molecularly imprinted polymers (MIPs) are polymerized in the presence of a template molecule. After removing the template, the polymer scaffold can selectively rebind the template. The imprinting factor (IF) refers to the ... -
Molecularly Imprinted Polymers with DNA Aptamer Fragments as Macromonomers
Zhang, Zijie; Liu, Juewen (American Chemical Society, 2016-03-16)Molecularly imprinted polymers (MIPs) are produced in the presence of a template molecule. After removing the template, the cavity can selectively rebind the template. MIPs are attractive functional materials with a low ... -
Multicopper Laccase Mimicking Nanozymes with Nucleotides as Ligands
Liang, Hao; Lin, Feifei; Zhang, Zijie; Liu, Biwu; Jiang, Shuhui; Yuan, Qipeng; Liu, Juewen (American Chemical Society, 2017-01-18)Using nanomaterials to achieve functional enzyme mimics (nanozymes) is attractive for both applied and fundamental research. Laccases are multicopper oxidases highly important for biotechnology and environmental remediation. ... -
Nucleotide coordination with 14 lanthanides studied by isothermal titration calorimetry
Zhang, Zijie; Morishita, Kiyoshi; Lin, Wei Ting David; Huang, Po-Jung Jimmy; Liu, Juewen (Elsevier, 2017-06-09)With their hydrolytic, optical and magnetic properties, lanthanide ions (Ln3+) are versatile probes for nucleic acids. In addition, nucleotide-coordinated Ln3+ ions form useful nanoparticles. However, the thermodynamic ... -
Self-healing metal coordinated hydrogels using nucleotide ligands
Liang, Hao; Zhang, Zijie; Yuan, Qipeng; Liu, Juewen (Royal Society of Chemistry, 2015-10-21)A supramolecular gel formed by coordination of Zn2+ with adenosine monophosphate (AMP) is reported. The adenine base, the monophosphate, and Zn2+ are all important for gel formation. Mechanically disrupted gels can re-form ...