نتایج جستجو برای: cyclohexa peptide nano rings
تعداد نتایج: 256825 فیلتر نتایج به سال:
The rod-shaped plant virus tobacco mosaic virus (TMV) is widely used as a nano-fabrication template, and chimeric peptide expression on its major coat protein has extended its potential applications. Here we describe a simple bacterial expression system for production and rapid purification of recombinant chimeric TMV coat protein carrying C-terminal peptide tags. These proteins do not bind TMV...
Spider silk-inspired peptide multiblock hybrid copolymers composed of alternately aligned self-assembling oligopeptides and flexible polypropylene glycol were newly designed for functional nano/microfilm materials.
A new approach of utilizing microwave to pattern gradient concentric silver nanoparticle ring structures has been presented. The width and height of a single ring and the space between adjacent rings can be adjusted by changing the silver colloidal concentration and the microwave output power. By simply enhancing the ambient vapour pressure to the saturated value during microwave-assisted evapo...
Objects of study: The cyclohexa-2,4-dienones 1, II and 111. Special methods of examination Low temperature spectroscopy and Mauser diagrams. Main results of investigation: Cyclo/seco isomeri7ation of a it*,nexcited reactant to a transient dienylketene, able to recyclize and/or to add a protic nucleophile, furnishes derivatives of a substituted hexadienoic acid in high yield. Alternatively, a cy...
Benzo[b]cyclohexa-2,4-dien-1-one (4) and benzo[b]cyclohexa-2,5-dien-1-one (5), the two most stable keto tautomers of 1-naphthol (1), were generated in aqueous solution by Norrish Type II fission of 4- and 2-phenacyl-1-tetralone, respectively, and the pH-rate profiles of their enolization were measured by flash photolysis. Several isotopic exchange rates of 1 were measured in aqueous acid to det...
Angiogenesis is important for normal development as well as for tumour growth. However, the molecular and cellular mechanisms underlying angiogenesis are not fully understood, partly because of the lack of a good animal model for imaging. Here, we report the generation of a novel transgenic (Tg) mouse that expresses a bioluminescent reporter protein, Nano-lantern, under the control of Fetal liv...
Abstract. The trimeric caffeic acid derivative pulcaffeate (1) was isolated from the organic crude extract of roots Bourreria pulchra (Boraginaceae). biosynthesis 1 appears to involve an intramolecular Diels-Alder reaction between a cyclohexa-1,3-diene intermediate, generated by oxidation aromatic ring cinnamic unit, and conjugated double bond unit. structure new metabolite elucidated through d...
The protection of conjugated dienes by coordination to the tricarbonyliron fragment offers many potential applications of the resulting complexes to organic synthesis. The preparation of tricarbonyl(h4-1,3-diene)iron complexes is readily achieved by a 1-azabutadiene-catalyzed complexation of the free ligands. An asymmetric catalytic complexation of prochiral cyclohexa-1,3-dienes with pentacarbo...
The stereoselective synthesis of a series of di- and tri-hydroxylated aminocyclohexane derivatives has been developed. A one-pot, two step tandem process involving an Overman rearrangement and a ring closing metathesis reaction has been utilised for the asymmetric synthesis of (1S)-1-(2',2',2'-trichloromethylcarbonylamino)cyclohexa-2-ene. Oxidation of this cyclohexene derivative was then studie...
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