Selective Optical Recognition and Quantification of Parts Per Million Levels of Cr6+in Aqueous and Organic Media by Immobilized Polypyridyl Complexes on Glass

2008 ◽  
Vol 130 (9) ◽  
pp. 2744-2745 ◽  
Author(s):  
Graham de Ruiter ◽  
Tarkeshwar Gupta ◽  
Milko E. van der Boom
Keyword(s):  
Organic Media ◽  
Polypyridyl Complexes ◽  
Optical Recognition

Water-soluble amphiphilic ruthenium(ii) polypyridyl complexes as potential light-activated therapeutic agents

2020 ◽  
Vol 56 (65) ◽  
pp. 9332-9335
Author(s):  
Sandra Estalayo-Adrián ◽  
Salvador Blasco ◽  
Sandra A. Bright ◽  
Gavin J. McManus ◽  
Guillermo Orellana ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Cancer Cells ◽  
Cellular Uptake ◽  
Therapeutic Agents ◽  
Water Soluble ◽  
Polypyridyl Complexes ◽  
Cervical Cancer Cells

Two new water-soluble amphiphilic Ru(ii) polypyridyl complexes were synthesised and their photophysical and photobiological properties evaluated; both complexes showed a rapid cellular uptake and phototoxicity against HeLa cervical cancer cells.

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>

Technological capabilities of vibration fi nishing of parts by granular organic media from natural materials

2020 ◽  
pp. 407-410
Author(s):  
E.Yu. Krupenya ◽  
A.P. Shishkina
Keyword(s):  
Experimental Verification ◽  
Organic Media ◽  
Technological Capabilities ◽  
Natural Materials ◽  
Machine Parts ◽  
Parts Manufacturing

The essence and scope of granular organic media from natural materials in the technology for machine parts manufacturing are shown. Vibration finishing model of the parts surface by granules of stone organic media and the results of its experimental verification, features of drying and vibration wiping of parts by organic media are presented.

Induction of Apoptosis in SKOV3 and DNA Binding by Cobalt(Iii) Polypyridyl Complexes

2019 ◽  
Vol 45 (4) ◽  
pp. 403-403
Author(s):  
Ch. Ravi ◽  
Ravi Kumar Vuradi ◽  
Srishailam Avudoddi ◽  
M. Ramchander ◽  
S. Satyanarayana
Keyword(s):  
Dna Binding ◽  
Polypyridyl Complexes ◽  
Induction Of Apoptosis
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