Chemical Communications
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#1Richard J. SpearsH-Index: 6
#2Clíona McMahonH-Index: 1
Last. Vijay ChudasamaH-Index: 32
view all 10 authors...
Herein we report a thiol-labile cysteine protecting group based on an unsaturated pyridazinedione (PD) scaffold. We establish compatibility of the PD in conventional solid phase peptide synthesis (SPPS), showcasing this in the on-resin synthesis of biologically relevant oxytocin. Furthermore, we establish the applicability of the PD protecting group towards both microwave-assisted SPPS and native chemical ligation (NCL) in a model system.
#2Kei NishidaH-Index: 9
Last. Masaru TanakaH-Index: 53
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Considering that pH in tumor microenvironment is dysregulated, we designed a β-hairpin peptide (SSRFEWEFESSDPRGDPSSRFEWEFESS). Configuration of the peptide switched from a flexible linear to a rigid loop structure under weakly acidic condition. The peptide internalized by tumor cells increased significantly under weakly acidic conditions compared to that under natural conditions.
#1Anandi Kugele (University of Konstanz)H-Index: 2
#2Sophie Ketter (Goethe University Frankfurt)H-Index: 1
Last. Malte Drescher (University of Konstanz)H-Index: 26
view all 6 authors...
The membrane transporter BtuB is site-directedly spin labelled on the surface of living Escherichia coli via Diels-Alder click chemistry of the genetically encoded amino acid SCO-L-lysine. The previously introduced photoactivatable nitroxide PaNDA prevents off-target labelling, is used for distance measurements, and the temporally shifted activation of the nitroxide allows for advanced experimental setups. This study describes significant evolution of Diels-Alder-mediated spin labelling on cellu...
#1Bahadur Sk (IISER: Indian Institute of Science Education and Research, Bhopal)H-Index: 8
#2Madhurima Sarkar (IISER: Indian Institute of Science Education and Research, Bhopal)
Last. Abhijit Patra (IISER: Indian Institute of Science Education and Research, Bhopal)H-Index: 21
view all 5 authors...
An intriguing case of intramolecular and intervalence charge transfer-driven multistate electrochromism and electrofluorochromism in dibenzophenazin-(phenyl)methanone and arylamine-based redox-active donor-acceptor-donor molecules was elucidated. Tunable absorption from UV to NIR and on-off switching of fluorescence in a single-component all-organic molecular material by a subtle variation of electric potentials were demonstrated.
#1Lei Yang (Center for Excellence in Education)
#2Wen-Qiang Xu (Center for Excellence in Education)
Last. Peng Wang (Center for Excellence in Education)H-Index: 122
view all 6 authors...
The development of chiral architectures for chiral ligand and catalyst discovery is essential for asymmetric catalysis. Herein, we report the concise synthesis of a Si-centered spirocyclic skeleton, spirobiphenoxasilin-diol (SPOSiOL), and its derived chiral ligands. Using the chemical resolution method, the optical SPOSiOL could be obtained in high yield on a gram scale. Preliminary studies indicated that this ligand scaffold has great potential in transition metal-catalyzed asymmetric reactions...
#1Tianran Zhai (SUNY: State University of New York)
#2Kenson Ambrose (University of Windsor)H-Index: 2
Last. Jeremy I. Feldblyum (SUNY: State University of New York)H-Index: 14
view all 6 authors...
We show here that non-network metallopolymers can possess intrinsic microporosity stemming from contortion introduced by metallocene building blocks. Metallopolymers constructed from ferrocenyl building blocks linked by phenyldiacetylene bridges are synthesized and possess BET surface areas up to 400 m2 g-1. As solubility imparted by pendant groups reduces porosity, copolymerization is used to simultaneously improve both accessible surface area and solubility. Spectroscopic analysis provides evi...
#1Debasis BanerjeeH-Index: 33
#2Atanu BeraH-Index: 3
Last. Sourajit BeraH-Index: 6
view all 4 authors...
N-heteroarene are widely used for numerous medicinal applications, lifesaving drugs and shows utmost importance as intermediate in chemical synthesis. This feature article highlights the recent advances, from 2015 to August 2021, on sp2 and sp3 C-H bond functionalization reactions of various N-heteroarenes catalyzed by non-precious transition metals (Mn, Co, Fe, Ni etc.). The salient features of the report are: (i) development of newer catalysis for Csp2-H activation of N-heteroarenes and catego...
#1Briana L. Hickey (UCR: University of California, Riverside)H-Index: 4
#2Junyi Chen (UCR: University of California, Riverside)H-Index: 2
Last. Richard J. Hooley (UCR: University of California, Riverside)H-Index: 28
view all 7 authors...
An arrayed combination of water-soluble deep cavitands and cationic dyes has been shown to optically sense insect pheromones at micromolar concentration in water. Machine learning approaches were used to optimize the most effective array components, which allows differentiation between small structural differences in targets, including between different diastereomers, even though the pheromones have no innate chromophore. When combined with chiral additives, enantiodiscrimination is possible, de...
Flexible electrochemical supercapacitors have shown great potentials in the next-generation wearable and implantable energy-storage devices. Conductive polymer hydrogels usually possess unique porosity, high conductivity, and broadly tunable properties through molecular designs and structural regulations, thus holding a tremendous promise as high-performance electrodes and electrolytes for flexible electrochemical supercapacitors. Numerous chemical and structural designs have provided unlimited ...
#1Fengbang Wang (CAS: Chinese Academy of Sciences)H-Index: 10
#2Zihan Chen (CAS: Chinese Academy of Sciences)
Last. Guibin Jiang (CAS: Chinese Academy of Sciences)H-Index: 102
view all 7 authors...
Accurate quantification of number concentration of nanoparticles (NPs) is critical for their biomedical and catalytic applications. We developed a novel NP analysis platform based on coupled gel immobilization and a three-dimensional (3D) scattered light imaging (SLI) platform. This imaging-based technique enables high-throughput analysis of silver nanoparticles (AgNPs) at single-particle level without the need for particle labeling or modification. This is a well-established quantitative charac...
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