A ultrastable cucurbit[6]uril-based multifunctional supramolecular assembly for efficient detection of nitroaromatic compounds and antibiotics

2021 ◽  
Author(s):  
Mei Liu ◽  
Jing Guo ◽  
Lulu Shi
Keyword(s):  
Supramolecular Assembly ◽  
Nitroaromatic Compounds ◽  
Efficient Detection ◽  
Acid Hydrate ◽  
Luminescence Measurement ◽  
Solvothermal Conditions

A CB[6]-based supramolecular assembly: [Zn(QDS)2]·(CB[6])2 (1) (CB[6] = cucurbit[6]uril, HQDS = 8-Hydroxy-5-quinolinesulfonic acid hydrate) has been synthesized under solvothermal conditions. Luminescence measurement reveals that 1 can serve as a fast...

Supramolecular assembly of lanthanide-2,3,5,6-tetrafluoroterephthalic acid coordination polymers via fluorine⋯fluorine interactions: a platform for luminescent detection of Fe3+ and nitroaromatic compounds

2020 ◽  
Vol 44 (28) ◽  
pp. 12317-12330
Author(s):  
Jermaine A. Smith ◽  
Marvadeen A. Singh-Wilmot ◽  
Korey P. Carter ◽  
Christopher L. Cahill ◽  
J. August Ridenour
Keyword(s):  
Coordination Polymers ◽  
Supramolecular Assembly ◽  
Nitroaromatic Compounds ◽  
Fluorine Interactions

F⋯F interactions stabilize {[Ln(TFTA)1.5(H2O)2]·H2O}n 2D coordination polymers which selectively detect Fe3+ and p-nitrophenols.

A carbazole-functionalized metal–organic framework for efficient detection of antibiotics, pesticides and nitroaromatic compounds

2019 ◽  
Vol 48 (8) ◽  
pp. 2683-2691 ◽  
Author(s):  
Ning Xu ◽  
Qinghua Zhang ◽  
Guoan Zhang
Keyword(s):  
Fluorescence Detection ◽  
Metal Organic Framework ◽  
Nitroaromatic Compounds ◽  
Efficient Detection ◽  
Metal Organic ◽  
Organic Framework

A carbazole-functionalized Cd-MOF exhibits highly selective and sensitive fluorescence detection towards antibiotics, pesticides and nitroaromatic compounds.

Luminescent triphenylamine-based metal–organic frameworks: recent advances in nitroaromatics detection

2020 ◽  
Vol 49 (37) ◽  
pp. 12929-12939
Author(s):  
Zhi-Qiang Shi ◽  
Ning-Ning Ji ◽  
Hai-Liang Hu
Keyword(s):  
Metal Organic Frameworks ◽  
Nitroaromatic Compounds ◽  
Recent Advances ◽  
Efficient Detection ◽  
Recent Developments ◽  
Metal Organic

This review focuses on recent developments on the luminescent triphenylamine-based MOFs for the efficient detection of nitroaromatic compounds (NACs).

The 3-Dimensional Molecular Structure of the Actin Filament Revisited

1985 ◽  
Vol 43 ◽  
pp. 480-481
Author(s):  
U. Aebi ◽  
R. Millonig ◽  
H. Salvo
Keyword(s):  
Actin Filament ◽  
Supramolecular Assembly ◽  
Specimen Preparation ◽  
X Ray Diffraction ◽  
Single Filament ◽  
X Ray ◽  
3 Dimensional ◽  
Filament Diameter ◽  
Preparation Conditions ◽  
Apparent Diameter

To date, most 3-D reconstructions of undecorated actin filaments have been obtained from actin filament paracrystal data (for refs, see 1,2). However, due to the fact that (a) the paracrystals may be several filament layers thick, and (b) adjacent filaments may sustantially interdigitate, these reconstructions may be subject to significant artifacts. None of these reconstructions has permitted unambiguous tracing or orientation of the actin subunits within the filament. Furthermore, measured values for the maximal filament diameter both determined by EM and by X-ray diffraction analysis, vary between 6 and 10 nm. Obviously, the apparent diameter of the actin filament revealed in the EM will critically depend on specimen preparation, since it is a rather flexible supramolecular assembly which can easily be bent or distorted. To resolve some of these ambiguities, we have explored specimen preparation conditions which may preserve single filaments sufficiently straight and helically ordered to be suitable for single filament 3-D reconstructions, possibly revealing molecular detail.

Supramolecular Assembly of U(IV) Clusters and Superatoms

2020 ◽  
Author(s):  
Ian Colliard ◽  
Gregory Morrosin ◽  
Hans-Conrad zur Loye ◽  
May Nyman
Keyword(s):  
Quantum Dots ◽  
Supramolecular Assembly ◽  
Emergent Properties ◽  
Organic Media ◽  
Body Centered Cubic ◽  
Cluster Anions ◽  
Charge Balance ◽  
Interpenetrating Networks ◽  
Hierarchical Assembly ◽  
Two Parameters

Superatoms are nanometer-sized molecules or particles that can form ordered lattices, mimicking their atomic counterparts. Hierarchical assembly of superatoms gives rise to emergent properties in superlattices of quantum-dots, p-block clusters, and fullerenes. Here, we introduce a family of uranium-oxysulfate cluster anions whose hierarchical assembly in water is controlled by two parameters; acidity and the countercation. In acid, larger Ln<sup>III</sup> (Ln=La-Ho) link hexamer (U<sub>6</sub>) oxoclusters into body-centered cubic frameworks, while smaller Ln<sup>III</sup> (Ln=Er-Lu &Y) promote linking of fourteen U<sub>6</sub>-clusters into hollow superclusters (U<sub>84</sub> superatoms). U<sub>84</sub> assembles into superlattices including cubic-closest packed, body-centered cubic, and interpenetrating networks, bridged by interstitial countercations, and U<sub>6</sub>-clusters. Divalent transition metals (TM=Mn<sup>II </sup>and Zn<sup>II</sup>), with no added acid, charge-balance and promote the fusion of 10 U<sub>6</sub> and 10 U-monomers into a wheel–shaped cluster (U<sub>70</sub>). Dissolution of U<sub>70</sub> in organic media reveals (by small-angle Xray scattering) that differing supramolecular assemblies are accessed, controlled by TM-linking of U<sub>70</sub>-clusters. <br>

Efficient Detection of Suspected areas in Mammographic Breast Cancer Images

2015 ◽  
Vol 1 (4) ◽  
pp. 1-10 ◽  
Author(s):  
Bhagwati Charan Patel ◽  
◽  
Dr.G.R. Sinha ◽  
Keyword(s):  
Breast Cancer ◽  
Efficient Detection
Sign in / Sign up

Export Citation Format

Share Document