Control of C.I. Basic Violet 10 aggregation in aqueous solution by the use of poly(sodium 4-styrenesulfonate)

Association Efficiency of Three Ionic Forms of Oxytetracycline to Cationic and Anionic Oil-In-Water Nanoemulsions Analyzed by Diafiltration

“…[24][25][26][27][28] Indeed, the hydrocarbon nature of organic counterions and their structure may produce hydrophobic interactions related with the amphiphilia of the LMWS, and secondary short-range interactions such as short-range electrostatic interactions, hydrogen bonding, and aromatic-aromatic interactions that change the interaction patterns, producing site-specific binding, higher binding constants, specific molecular geometries and architectures, and even binding of like-charged molecules. [24][25][26][28][29][30][31] In particular, aromatic-aromatic interactions may easily produce ion pairs of high hydrophobia that may be stabilized in a hydrophobic environment, 32,33 affecting the partition coefficient. For systems thermodynamically controlled, the equilibrium established between the interacting molecules is sensitive to the environmental conditions.…”

“…For systems thermodynamically controlled, the equilibrium established between the interacting molecules is sensitive to the environmental conditions. 30,34 In the case of kinetically controlled nanosystems, it is usually presented centrifugation as a method to calculate drug encapsulation efficiency and drug release from the nanovehicles. [35][36][37] By this method, the nanocarriers are concentrated at the top or at the bottom of the centrifugation tubes, allowing by direct or indirect mass balance calculating the referred parameters.…”

“…[43][44][45] Complex mixtures are filtered through a membrane, which has pores that discriminate between species according to their molecular size. In addition, as a separation technique, DF has emerged as an effective technique to study interactions between LMWS and several macromolecular species including soluble polymers, [25][26][27][28][30][31][32][33][34][46][47][48][49][50] polymeric nanoparticles, 51,52 antibodies, 53 and food matrices, 54 among others. The membrane pore size may be chosen so that only the passage of free LMWS is allowed.…”

Facile Formation of Redox‐Active Totally Organic Nanoparticles in Water by In Situ Reduction of Organic Precursors Stabilized through Aromatic–Aromatic Interactions by Aromatic Polyelectrolytes

“…[16,17] These interactions provide higher binding constants between the two interacting species, and resistance to the cleaving effect of the presence of electrolytes such as NaCl. In addition, they have shown potential for tuning molecular properties of the counterions, such as luminescent, [18] redox, [19] and acid-base [8] properties. Systems undergoing aromatic-aromatic interactions have been investigated for drug delivery and chemical catalysis.…”

Novel polyketones with pendant imidazolium groups as nanodispersants of hydrophobic antibiotics

“…[9][10][11] Changes on the pH of a solution can result in the collapse of weak polyelectrolytes undergoing acid-base equilibrium. [19][20][21] These charged organic counterions may induce the collapse of polymeric systems when they undergo secondary interactions such as short-range electrostatic interactions, hydrogen bonding, or aromatic-aromatic interactions. 17 Polychelatogens may undergo phase separation when their binding sites become saturated with metal ions.…”