1006061-57-9Relevant articles and documents
Polypeptide/Multiwalled carbon nanotube hybrid complexes stabilized through noncovalent bonding interactions
Lin, Yung-Chih,Kuo, Shiao-Wei
, p. 321 - 329 (2014)
In this study, we used click chemistry to synthesize new linear polypeptide-g-pyrene polymers from a mono-azido-functionalized pyrene derivative (N3-Py) and several poly(γ-propargyl-l-glutamate) (PPLG) oligomers. Incorporating the pyrene units as side chains enhanced the α-helical conformations of these PPLG oligomers in the solid state, as determined using Fourier transform infrared (FTIR) spectroscopy; it also increased the temperature stability of the α-helical secondary structures of the grafted PPLG oligomers, relative to those of the pure PPLG species, as revealed through temperature-dependent FTIR spectroscopic analyses. In addition, the thermal properties of the PPLG-g-Py polypeptides (e.g., glass transition temperatures increased by ca. 100 °C) were superior to those of pure PPLG oligomers. Mixing the PPLG-g-Py oligomers with multiwalled carbon nanotubes (MWCNTs) in dimethylformamide led to the formation of highly dispersible PPLG-g-Py/MWCNT organic/inorganic hybrid complex materials. Fluorescence emission spectra revealed significant π-π stacking between the PPLG-g-Py oligomers and the MWCNTs in these complexes. 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 321-329 Click chemistry is used to synthesize new linear polypeptide-g-pyrene polymers from a mono-azido-functionalized pyrene derivative (N3-Py) and several poly(γ-propargyl-l-glutamate) (PPLG) oligomers. Incorporating the pyrene units as side chains enhances the α-helical conformations of these PPLG oligomers in the solid state and increases the temperature stability of the α-helical secondary structures of the grafted PPLG oligomers, relative to those of the pure PPLG species. Copyright
Fine-tuning of the optical output in a dual responsive catenane switch
Deng, Yulin,Lai, Samuel Kin-Man,Kong, Linghui,Au-Yeung, Ho Yu
, p. 2931 - 2934 (2021)
A [2]catenane switch where the intramolecular pyrene excimer emission can be controlled by orthogonal cation binding and solvent polarity change in various amplitudes and dynamic ranges is reported.
Synthesis, photophysical and electrochemical properties and DSSC application of triphenylaminochalcone cored dendrimers with anthracene and pyrene as surface groups and triazolylcholanoate as the bridging unit
Anandkumar, Devaraj,Rajakumar, Perumal
, p. 16542 - 16554 (2018)
Triphenylaminochalcone-cored dendrimers decorated with anthracene and pyrene at the periphery have been synthesized by a convergent methodology using a click chemistry approach and characterized from spectral data and elemental analyses. All the dendrimers show excellent optical and electrochemical properties. Higher generation dendrimers exhibit better power conversion efficiency than lower-generation dendrimers when used as additives in dye-sensitized solar cells (DSSCs).
A pyrenyl-appended triazole-based calix[4]arene as a fluorescent sensor for Cd2+ and Zn2+
Sun, Young Park,Jung, Hee Yoon,Chang, Seop Hong,Souane, Rachid,Jong, Seung Kim,Matthews, Susan E.,Vicens, Jacques
, p. 8212 - 8218 (2008)
(Figure Presented) The synthesis and evaluation of a novel calix[4]arene-based fluorescent chemosensor 8 for the detection of Cd 2+ and Zn2+ is described. The fluorescent spectra changes observed upon addition of various metal ions show that 8 is highly selective for Cd2+ and Zn2+ over other metal ions. Addition of Cd 2+ and Zn2+ to the solution of 8 results in ratiometric measurement.
Building addressable libraries: A site-selective click-reaction strategy for rapidly assembling mass spectrometry cleavable linkers
Bartels, Jennifer L.,Lu, Peng,Walker, Amy,Maurer, Karl,Moeller, Kevin D.
, p. 5573 - 5575 (2009)
A click-reaction was site-selectively carried out on 1000 and 12000 microelectrode arrays and characterized using TOF-SIMS.
Alkyne mechanochemistry: Putative activation by transoidal bending
Diesendruck, Charles E.,Zhu, Lingyang,Moore, Jeffrey S.
, p. 13235 - 13238 (2014)
We investigated the use of mechanical stress to bend carbon-carbon triple bonds. Formation of an isoquinoline after reaction with a benzyl azide trap points towards a nucleophilic addition mechanism, differentiating mechanochemical trans-bending of π bonds from the typical reactivity observed for cisoidal bending of triple bonds in strained cyclic alkynes.
Evaluation of readily accessible azoles as mimics of the aromatic ring of D-phenylalanine in the turn region of gramicidin S
vanderKnaap, Matthijs,Lageveen, Lianne T.,Busscher, Henk J.,Mars-Groenendijk, Roos,Noort, Daan,Otero, Jose M.,Llamas-Saiz, Antonio L.,vanRaaij, Mark J.,vanderMarel, Gijsbert A.,Overkleeft, Herman S.,Overhand, Mark
experimental part, p. 840 - 847 (2012/01/06)
The influence of replacing the d-phenylalanine residue with substituted and unsubstituted azoles on the structure and biological activity of the antibiotic gramicidinS was investigated against a representative panel of Gram-positive and Gram-negative bact
A rapid, high-yield method for 5'-hydroxyl protection in very reactive and amino group modified nucleosides using dimethoxytrityl tetrafluoroborate
Lakshman,Zajc
, p. 1029 - 1039 (2007/10/03)
The conventional method for 4,4'-dimethoxytrityl (DMT) etherification of the 5'hydroxyl termini in deoxynucleosides that are either highly reactive or those bearing modifications at the exocyclic amino group can be quite problematic, and in several cases
