We consider the complexation of highly charged semiflexible polyelectrolytes with oppositely charged macroions. On the basis of scaling arguments we discuss how the resulting complexes depend on the persistence length of the polyelectrolyte, the salt concentration, and the sizes and charges of the chain and the macroions. We study first the case of complexation with a single sphere and calculat...

The accurate description of the complexation of the CUO molecule by Ne and Ar noble gas matrices represents a challenging task for present-day quantum chemistry. Especially, the accurate prediction of the spin ground state of different CUO-noble-gas complexes remains elusive. In this work, the interaction of the CUO unit with the surrounding noble gas matrices is investigated in terms of comple...

decreased to 2276±288 nm at the end of 120 min having a polydispersity over 0.7 for both of the incubations. Among the CLDC10 and CLDC11 prepared at the highest ratios (1:0.186 w/w) the complexation process was the fastest and the size observed between 2900 nm to 3044 nm remained nearly unchanged with CLDC10, whereas a progressive increase and then decrease was observed with CLDC11. The measure...

1) Concentration determination and isolation of purified fractions of natural thiols and natural acid polysaccharides for trace metal complexation and structural experiments. 2) Determination of conditional stability constants for the complexation of selected B metal ions (such as Ag, Hg, Cd, Cu, Pb) to specific thiolic functional groups in estuarine organic matter, and of A (e.g., Cs, Ba, Th) ...

The constants of the extraction equilibrium and the distribution for dichloromethane as an organic solvent having low dielectric constant of metal cations with chiral Schiff bases, benzaldehydene-(S)-2-amino-3-phenylpropanol (I), ohydroxybenzaldehydene-(S)-2-amino-3-phenyl-propanol (II), benzaldehydene-(S)-2amino-3-methylbutanol (III) with anionic dyes [4-(2-pyridylazo)-resorcinol mono sodium m...

In contrast to the extraordinary achievements of cation complexation in host-guest chemistry, only recently has anion complexation by compounds containing electrondeficient atoms such as boron, mercury, tin and silicon received attention. We here present a new class of carborane-supported macrocyclic multidentate Lewis acid hosts which bind nucleophilic species to form isolable host-guest compl...

The synthesis, copper(II) complexation and biotin conjugation of a bifunctional chelator incorporating a cross-bridged macrocycle are described.

Significant improvement of complexation of a bisparaquat guest was achieved by the formation of a pseudocryptand-based [3]pseudorotaxane.

A continued interest in polyelectrolyte phase diagrams guides the study of interfacial phenomena driven by complexation. The liquid–liquid interfaces formed associative separation oppositely charged synthetic and natural polyelectrolytes provide measurement challenges addressed force-sensitive methods deformed droplet retraction. ultralow tension, typical these systems, is sensitive to salt con...

Lysozyme, as a model protein, was precipitated through the formation of protein-Zn complex to micronize for subsequent encapsulation within poly (lactic-co-glycolic acid) (PLGA) microspheres. Various parameters, including pH, type and concentration of added salts and protein concentration, were modified to optimize the yield of protein complexation and precipitation. The resulting protein parti...