Abiotic Supramolecular Systems

2011 ◽  
Author(s):  
Chad A. Mirkin ◽  
Joseph T. Hupp
Keyword(s):  
Supramolecular Systems

Catalytic Generation of Radicals in Supramolecular Systems with Acetylcholine

2020 ◽  
Vol 61 (5) ◽  
pp. 786-793
Author(s):  
N. V. Potapova ◽  
O. T. Kasaikina ◽  
M. P. Berezin ◽  
I. G. Plashchina
Keyword(s):  
Supramolecular Systems

scholarly journals Structure and Location of Protein Sites Binding Self-Associated Congo Red Molecules with Intercalated Drugs as Compact Ligands—Theoretical Studies

Biomolecules ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 501
Author(s):  
Ptak-Kaczor Magdalena ◽  
Kwiecińska Klaudia ◽  
Korchowiec Jacek ◽  
Chłopaś Katarzyna ◽  
Banach Mateusz ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Light Chain ◽  
Congo Red ◽  
Theoretical Studies ◽  
Mathematical Tool ◽  
Supramolecular Systems ◽  
Micellar Structure ◽  
Protein Molecules ◽  
Toxic Drugs ◽  
Independent Property

In the search for new carriers capable of transporting toxic drugs to a target, particular attention has been devoted to supramolecular systems with a ribbon-like micellar structure of which Congo red is an example. A special promise of the possible use of such systems for directing drugs to a target emerges from their particular affinity to immune complexes and as an independent property, binding many organic compounds including drugs by intercalation. Serum albumin also appeared able to bind micellar particles of such systems. It may protect them against dilution in transport. The mathematical tool, which relies on analysis of the distribution of polarity and hydrophobicity in protein molecules (fuzzy oil drop model), has been used to find the location of binding area in albumin as well as anchorage site for Congo red in heated IgG light chain used as a model presenting immunoglobulin-like structures. Results confirm the suggested formerly binding site of Congo red in V domain of IgG light chain and indicated the cleft between pseudo-symmetric domains of albumin as the area of attachment for the dye.

scholarly journals Adventures in molecular recognition. The ins and outs of templating

2000 ◽  
Vol 72 (12) ◽  
pp. 2265-2274 ◽  
Author(s):  
Jeremy K. M. Sanders
Keyword(s):  
Molecular Recognition ◽  
Combinatorial Chemistry ◽  
Biological Systems ◽  
Design Approach ◽  
Supramolecular Systems ◽  
Disulfide Exchange ◽  
Dynamic Combinatorial Chemistry ◽  
Evolutionary Features ◽  
Selection Approach ◽  
Porphyrin Dimers

Two different approaches are described for the creation of supramolecular systems potentially capable of recognition and catalysis. Using the design approach, we have been able to accelerate and influence two different Diels­Alder reactions within the cavities of porphyrin dimers and trimers; this is templating from the outside inwards. The selection approach is a synthetic chemical attempt to capture some of the key evolutionary features of biological systems: dynamic combinatorial chemistry is used to create equilibrating mixtures of potential receptors, and then a template is used to select and amplify the desired system. Five potential reactions for such dynamic chemistry are discussed: base-catalyzed transesterification, hydrazone exchange, disulfide exchange, alkene metathesis, and Pd-catalyzed allyl exchange, and preliminary templating results (inside outwards) are presented.

scholarly journals A new approach about the digestion of fibers by ruminants

2013 ◽  
Vol 14 (2) ◽  
pp. 382-395 ◽  
Author(s):  
Leonardo Marmo Moreira ◽  
Fernando de Paula Leonel ◽  
Ricardo Augusto Mendonça Vieira ◽  
José Carlos Pereira
Keyword(s):  
Relevant Literature ◽  
Decisive Role ◽  
Supramolecular Systems ◽  
Animal Science ◽  
New Approach ◽  
Feed Resources ◽  
Stable Clusters ◽  
Metallic Cations ◽  
Animal Sciences

The decisive role of metallic cations in the formation of supramolecular clusters involving lignin, cellulose, and hemi-cellulose and its relationship to energy losses in ruminants associated with fibrous feed resources is still not well understood. Indeed, interactions between lignin, cellulose and metallic cations generate highly stable clusters that significantly decrease the capability of cellulase to break bonds between sugar units in order to facilitate the absorption of a great quantity of cellulose, which is ingested by ruminants as forage. Furthermore, several metallic cations cannot be absorbed as a consequence of the formation of coordinated ligations with the oxygen atoms of the lignocellulosic cluster. The loss of lignocellulose-metal clusters by ruminants is responsible for a substantial waste of nutrients, which is a significant problem in animal science. Moreover, the chemical structure of these relevant supramolecular systems is poorly understood. In the present review, we discussed this topic in detail in reference to relevant literature from the chemical and animal sciences in order to analyze the perspectives associated with the improvement of nutritional absorption from feed resources by ruminants.

Chitosan effect on the mesophase behavior of phosphatidylcholine supramolecular systems

2009 ◽  
Vol 29 (2) ◽  
pp. 463-469 ◽  
Author(s):  
Omar Mertins ◽  
Maria I.Z. Lionzo ◽  
Yasmine M.S. Micheletto ◽  
Adriana R. Pohlmann ◽  
Nádya Pesce da Silveira
Keyword(s):  
Supramolecular Systems

Consequences of Cooperativity in Racemizing Supramolecular Systems

2012 ◽  
Vol 124 (26) ◽  
pp. 6532-6537 ◽  
Author(s):  
Seda Cantekin ◽  
Huub M. M. ten Eikelder ◽  
Albert J. Markvoort ◽  
Martijn A. J. Veld ◽  
Peter A. Korevaar ◽  
...  
Keyword(s):  
Supramolecular Systems

ChemInform Abstract: Electrochemistry of Supramolecular Systems

ChemInform ◽  
2010 ◽  
Vol 29 (25) ◽  
pp. no-no
Author(s):  
P. L. BOULAS ◽  
M. GOMEZ-KAIFER ◽  
L. ECHEGOYEN
Keyword(s):  
Supramolecular Systems

Vesicles and other supramolecular systems made from double-tailed synthetic glycolipids derived from galactosylated tris(hydroxymethyl)aminomethane

1995 ◽  
Vol 77 (2) ◽  
pp. 225-251 ◽  
Author(s):  
Ange Polidori ◽  
Bernard Pucci ◽  
Leila Zarif ◽  
Jean-Michel Lacombe ◽  
Jean G. Riess ◽  
...  
Keyword(s):  
Supramolecular Systems
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