2915-43-7Relevant articles and documents
Characterization of the effects of aryl-azido compounds and UVA irradiation on the viral proteins and infectivity of human immunodeficiency virus type 1
Belanger, Julie M.,Raviv, Yossef,Viard, Mathias,Jason De La Cruz, Michael,Nagashima, Kunio,Blumenthal, Robert
, p. 1099 - 1108 (2010)
Hydrophobic UV-activatable compounds have been shown to partition into the hydrophobic region of biological membranes to selectively label transmembrane proteins, and to inactivate enveloped viruses. Here, we analyze various UV-activatable azido- and iodo-based hydrophobic compounds for their ability to inactivate a model-enveloped virus, human immunodeficiency virus (HIV-1 MN). Treatment of HIV-1 with 1,5-diazidonapthalene (DAN), 1-iodo, 5-azidonaphthalene (INA), 1-azidonaphthalene (AzNAP) or 4,4′-diazidobiphenyl (DABIPH) followed by UVA irradiation for 2 min resulted in complete viral inactivation, whereas treatment using analogous non-azido-containing controls had no effect. Incorporation of an azido moiety within these hydrophobic compounds to promote photoinduced covalent reactions with proteins was found to be the primary mechanism of viral inactivation for this class of compounds. Prolonged UVA irradiation of the virus in the presence of these azido compounds resulted in further modifications of viral proteins, due to the generation of reactive oxygen species, leading to aggregation as visualized via Western blot analysis, providing additional viral modifications that may inhibit viral infectivity. Furthermore, inactivation using these compounds resulted in the preservation of surface antigenic structures (recognized by neutralizing antibodies b12, 2g12 and 4e10), which is favorable for the creation of vaccines from these inactivated virus preparations.
Linear C2 symmetric compound, lanthanide polynuclear complex and preparation method and application of lanthanide polynuclear complex
-
Paragraph 0112; 0123-0124, (2020/08/18)
The invention discloses a linear C2 symmetric compound, a lanthanide polynuclear complex and a preparation method and application of the lanthanide polynuclear complex, and belongs to the field of photochemical supramolecules. The structural formula of the linear C2 symmetric compound is shown in the specification. The linear C2 symmetric compound is obtained by carrying out triazole cyclization reaction on an azide compound and an alkyne compound at the temperature of 50-70 DEG C. The lanthanide polynuclear complex has a general formula Ln2nL3n, wherein Ln is selected from lanthanide, L is anorganic ligand selected from the linear C2 symmetric compound, and n is selected from 1 or 2. The preparation method comprises the steps: carrying out a reaction on a lanthanide Ln precursor with theorganic ligand L at the temperature of 30-50 DEG C. The linear C2 symmetric compound comprises a triazole-pyridine-amide chelating group, can improve the efficiency of energy transfer from an intermediate chromophore of the ligand to a rare earth center, and improve the construction of a lanthanide complex having a high nuclear number, and thus the obtained complex having strong light-emitting properties and includes a lanthanide organic polyhedral cage having a high nuclear number.
Synthesis and self-assembly of tetraphenylethene and biphenyl based AIE-active triazoles
Yuan, Wang Zhang,Mahtab, Faisal,Gong, Yongyang,Yu, Zhen-Qiang,Lu, Ping,Tang, Youhong,Lam, Jacky W. Y.,Zhu, Caizhen,Tang, Ben Zhong
supporting information; experimental part, p. 10472 - 10479 (2012/08/13)
Self-assembly of fluorescent functional materials has attracted increasing interest in the fabrication of optoelectronic and biological nanodevices. Tetraphenylethene (TPE) is a typical dye molecule with aggregation-induced- emission (AIE) characteristics. Melding TPE carrying triple-bond functionality with diazide-containing biphenyl through "click" chemistry generates AIE-active luminogens [1,1′-biphenyl]-4,4′-diyl bis(6-(4-(4-(1,2,2- triphenylvinyl)phenyl)-1H-1,2,3-triazol-1-yl) hexanoate) [1(5)] and [1,1′-biphenyl]-4,4′-diyl bis(11-(4-(4-(1,2,2-triphenylvinyl)phenyl) -1H-1,2,3-triazol-1-yl) undecanoate) [1(10)] with solid state efficiencies up to unity. Slow addition of dilute THF solutions of 1(m) (m = 5, 10) into nonsolvents such as n-hexane and water yields self-assembled white wooly solids. TEM and SEM observations reveal the (helical) nanofibrous structure of the aggregates. Upon cooling from their concentrated hot solutions, 1(m) readily precipitate. Meanwhile, they can also form gels at high concentrations. Both precipitates and gels of 1(m) exhibit structures similar to those of the aggregates formed in nonsolvents. These results indicate that 1(m) can facilely self-assemble into high emission efficiency (helical) nanofibers, thus paving the way for their optoelectronic and biological applications. The Royal Society of Chemistry 2012.
