Interaction of Cu(II) on N-(2-pyridylmethyl) and N-(4-pyridylmethyl) chitosan

Thermodynamics Data of Interaction of Copper Nitrate with Native and Modified Chrysotile Fibers in Aqueous Solution

“…In attempting to attain this purpose the improvement consisted of anchoring pendant carbon chains containing, for example, nitrogen donor atoms to explore the coordinative ability of the amino groups in extracting cations from aqueous and nonaqueous solvents (24)(25)(26). Apart from many cations that can be complexed by amino pendant groups a specific and selective use is enhanced for copper cations (27,28).…”

Antioxidant Polymers: Metal Chelating Agents

“…Apart from their applications in the medical field, chitin and chitosan fibers have potential applications in wastewater treatment, where the removal of heavy metal ions by chitosan through chelation has received much attention [33,93,101]. Their use in the apparel industry, with a much larger scope, could be a long-term possibility [102,103].…”

Quitosana: biopolímero funcional com potencial industrial biomédico

“…15 A presença de uma alta porcentagem de grupos amino reativos distribuídos na matriz polimérica permite inúmeras modificações químicas, tais como imobilização de agentes quelantes, quaternização, carboxilação, acilação, sulfonação, amidação, formação de complexo polieletrolítico etc. [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] O biopolímero quitosana pode ser modificado fisicamente, sendo uma das vantagens mais interessantes a sua grande versatilidade em ser preparado em diferentes formas, tais como pós, flocos, microesferas, nanopartículas, membranas, esponjas, colméias, fibras e fibras ocas. 16, A Figura 2 ilustra micrografias de microesferas de quitosana reticuladas obtidas por spray drying.…”