114932-60-4Relevant articles and documents
Noncovalent immobilization of Co(ii)porphyrin through axial coordination as an enhanced electrocatalyst on carbon electrodes for oxygen reduction and evolution
Attatsi, Isaac Kwaku,Zhu, Weihua,Liang, Xu
, p. 4340 - 4345 (2020)
Catalysis of fuel-producing reactions can be transferred from homogeneous solution to a surface via attachment of the molecular catalyst. A pyrene-pyridine hybrid (Py-Py) was used as an axial ligand to bridge Co(ii)tetraphenylporphyrin which was finally immobilized on carbon nanotubes via noncovalent interactions and further deposited on glassy carbon. This noncovalent immobilization of Co(ii)porphyrin through axial coordination provides significantly enhanced electrochemically catalyzed oxygen reduction and oxygen evolution, illustrating a new insight into understanding surface catalysis.
A nanoscale graphene oxide-peptide biosensor for real-time specific biomarker detection on the cell surface
Wang, Zhe,Huang, Peng,Bhirde, Ashwinkumar,Jin, Albert,Ma, Ying,Niu, Gang,Neamati, Nouri,Chen, Xiaoyuan
, p. 9768 - 9770 (2012)
A nanoscale RGD-pyrene-graphene oxide (GO) biosensor was prepared for real-time in situ detection of a cancer cell surface marker, integrin αvβ3. This nanoscale GO-based biosensor is simple, robust, sensitive and of high selectivity. It can also be adapted to other cancer cell surface marker evaluation systems. The Royal Society of Chemistry 2012.
Oligonucleotide-polyamide hybrid molecules containing multiple pyrene residues exhibit significant excimer fluorescence
Tong, Glenn,Lawlor, John M.,Tregear, Geoffrey W.,Haralambidis, Jim
, p. 12151 - 12158 (1995)
Oligonucleotide-polyamide hybrid molecules bearing multiple pyrene residues in the polyamide moiety were prepared. These molecules were designed to promote pyrene excimer formation and avoid intercalation of the label into the DNA duplex. Significant excimer fluorescence was observed, and this was shown to increase with the number of pyrene residues present. Hence, there is potential for further increasing of the fluorescence intensity by incorporation of additional label residues. Excimer fluorescence intensity was also shown to be sensitive to duplex formation. Fluorescence measurements and melting temperature studies gave no evidence of intercalation of the pyrene residues into duplex DNA. The hybridization properties of these hybrid molecules are similar to those of unmodified oligonucleotides. It seems, then, likely that pyrenylated oligonucleotide-polyamide hybrids may be useful as oligonucleotide probes.
Microelectrode Arrays, Dihydroxylation, and the Development of an Orthogonal Safety-Catch Linker
Yeh, Nai-Hua,Krueger, Ruby,Moeller, Kevin D.
, p. 5440 - 5444 (2021)
Construction of larger molecular libraries on an addressable microelectrode array requires a method for recovering and characterizing molecules from the surface of any electrode in the array. This method must be orthogonal to the synthetic strategies needed to build the array. We report here a method for achieving this goal that employs the site-selective dihydroxylation reaction of a simple olefin.
Synthesis, antimicrobial activity, attenuation of aminoglycoside resistance in MRSA, and ribosomal A-site binding of pyrene-neomycin conjugates
Story, Sandra,Skriba, Michael J.,Maiti, Krishnagopal,Nihar Ranjan,Degtyareva, Natalya N.,Green, Keith D.,Khodaverdian, Verjine,Oyelere, Adegboyega K.,Garneau-Tsodikova, Sylvie,Arya, Dev P.
, p. 381 - 393 (2019)
The development of new ligands that have comparable or enhanced therapeutic efficacy relative to current drugs is vital to the health of the global community in the short and long term. One strategy to accomplish this goal is to functionalize sites on cur
Molecular engineering of fluorescent penicillins for molecularly imprinted polymer assays
Benito-Pena, Elena,Moreno-Bondi, Maria C.,Aparicio, Santiago,Orellana, Guillermo,Cederfur, Josefine,Kempe, Maria
, p. 2019 - 2027 (2006)
The interaction of seven novel fluorescent labeled β-lactams with a library of six polymer materials molecularly imprinted (MI) with penicillin G (PenG) has been evaluated using both radioactive and fluorescence competitive assays. The highly fluorescent
Inorganic-organic hybrid vesicles with counterion- and pH-controlled fluorescent properties
Li, Dong,Song, Jie,Yin, Panchao,Simotwo, Silas,Bassler, Andrew J.,Aung, Yuyu,Roberts, James E.,Hardcastle, Kenneth I.,Hill, Craig L.,Liu, Tianbo
, p. 14010 - 14016 (2011)
Two inorganic-organic hybrid clusters with one or two covalently linked pyrene fluorescent probes, [(n-C4H9)4N] 2[V6O13{(OCH2)3C(NH(CO) CH2CH2CH2C16H9)} {(OCH2)3C-(NH2)}] ((TBA+) 21) and [(n-C4H9)4N] 2[V6O13{(OCH2)3C(NH(CO) CH2CH2CH2C16H9)} 2] ((TBA+)22), respectively, are synthesized from Lindqvist type polyoxometalates (POMs). The incorporation of pyrene into POMs results in amphiphilic hybrid molecules and simultaneously offers a great opportunity to study the interaction between hybrid clusters and their counterions. 2D-NOESY NMR and fluorescence techniques have been used to study the role of counterions such as tetrabutyl ammonium (TBA) in the vesicle formation of the hybrid clusters. The TBA+ ions not only screen the electrostatic repulsions between the POM head groups but also are involved in the hydrophobic region of the vesicular structure where they interrupt the formation of pyrene excimers that greatly perturbs the luminescence signal from the vesicle solution. By replacing the TBA+ counterions with protons, the new vesicles demonstrate interesting pH-dependent fluorescence properties.
Enhanced electrocatalytic hydrogen evolutions of Co(II)phthalocyanine through axially coordinated pyridine-pyrene
Gu, Tingting,Kwaku Attatsi, Isaac,Li, Minzhi,Liang, Xu,Ndur, Samuel A.,Zhu, Weihua
supporting information, (2021/11/19)
Non-precious metal catalysts can effectively evolve hydrogen in aqueous media, but a highly efficient metal-based catalyst is still a significant assignment. Herein, Co(II)phthalocyanine was noncovalently immobilized on multiwalled carbon nanotubes through axial coordination via pyridine-pyrene linker and applied towards hydrogen evolution reactions. This material provided a superiorly enhanced electrocatalyzed performance signifying high efficiency. With this behaviour, our target material we believe paves the way towards designing efficient energy production and storage devices.
