52238-17-2Relevant academic research and scientific papers
Circularly Polarized Luminescence of Achiral Metal–Organic Colloids and Guest Molecules in a Vortex Field
Huang, Jian-Cai,Ye, Guang-Ming,Yu, Maoxing,Huang, Ruishan,Zhao, Zujin,Qin, Anjun,Wu, Shu-Ting,Xie, Zenghong
, p. 6760 - 6766 (2021)
Recently, scientists have reported a range of chiral fluorescence materials or chiral composites that can emit circularly polarized luminescence. Herein, two achiral metal–organic colloidal solutions were studied, showing active circularly polarized luminescence, which is observed in vortex stirring. The absolute values for glum are 0.05 and 0.03 and the plus or minus sign of glum depends on the colloidal structure and stirring direction, which make the property easy to manipulate. Further, the host–guest interaction study suggests both electrostatic interactions and coordination bonding may influence the chiroptical property from the colloidal solution to the guest molecule. Rhodamine 6G and its carboxylic acid derivative exhibit good quantum yields and acceptable glum values in the colloidal solution.
Binding of aminoglycoside antibiotics with modified A-site 16S rRNA construct containing non-nucleotide linkers
Tok, Jeffrey B.-H.,Wong, Wilson,Baboolal, Nyla
, p. 365 - 370 (2007/10/03)
The design and synthesis of synthetically modified cyclic A-site 16S rRNA construct is reported. The binding characteristics of several members of the aminoglycoside antibiotics with this novel class of synthetically modified A-site 16S rRNA constructs we
The synthesis of some head to head linked DNA minor groove binders
Khalaf, Abedawn I.,Pitt, Andrew R.,Scobie, Martin,Suckling, Colin J.,Urwin, John,Waigh, Roger D.,Fishleigh, Robert V.,Young, Steven C.,Wylie, William A.
, p. 5225 - 5239 (2007/10/03)
A series of head to head linked dimers of heterocyclic amino acids has been prepared for investigation of affinity and selectivity in binding to the minor groove of DNA. The selection of targets for synthesis was led by computer based design. Several novel dicarboxylic acid linkers including indoles, phenanthrenes, a fluorenone, and a bisbenzothiophene have been included. Analysis of binding to DNA by footprinting showed high affinity for compounds derived from 2,7-dihydrophenanthrene dicarboxylic acid and a predominant selectivity for AT rich regions containing at least 4 AT pairs but with the ability to span up to two CG base pairs. (C) 2000 Elsevier Science Ltd.
Compositions comprising high loading water-dispersible UVA and/or UVB light-absorbing copolymer
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, (2008/06/13)
The invention is concerned with compositions comprising novel water-dispersible copolymers which contain at least one UVA light-absorbing monomer, one UVB light-absorbing monomer, one hydrophilic monomer, and optionally one hydrophobic monomer component.
Use of a stilbenedicarboxamide bridge in stabilizing, monitoring, and photochemically altering folded conformations of oligonucleotides
Letsinger, Robert L.,Wu, Taifeng
, p. 7323 - 7328 (2007/10/02)
A stilbenedicarboxamide bridge (-Σ-) is shown to serve as a unique and unusually effective cap for stabilizing and characterizing short oligonucleotide double and triple stranded structures. As representative of the stability of a family of oligomers stud
Dicarboxylic Acid Bis(methyl phosphates): Anionic Biomimetic Cross-Linking Reagents
Kluger, Ronald,Grant, Andrew S.,Bearne, Stephen L.,Trachsel, Marcel R.
, p. 2864 - 2868 (2007/10/02)
Monoesters of acyl phosphates are anionic electrophiles and their difunctional analogues are expected to function as site-directed cross-linking reagents.Dimethyl phosphate anhydrides of mono- and dicarboxylic acids are conveniently prepared by the reacti
Eine einfache Methode zur Herstellung von Benzoxazolen
Seha, Zdenek,Weis, Claus D
, p. 413 - 419 (2007/10/02)
The preparation of benzoxazoles by a facile one-pot reaction is reported.The reaction of carboxylic acids with 2-chloro-N-methyl-Δ1-pyrrolinium chloride in an excess of N-methyl-2-pyrrolidone afforded carboxylic acid chlorides which were converted subsequently to their 2-hydroxyanilides by addition of 2-aminophenols.Cyclization of the 2-hydroxy-anilides at elevated temperatures furnished the benzoxazoles in high yield and purity.
