Novel materials based on chitosan, its derivatives and cellulose fibres

In this work, porous tubular scaffolds were prepared from a novel water soluble aldehyde-functionalized chitosan (ALDCHIT) hydrogel, which was obtained by dissolving this chitosan

Herein, we wish to report a study of the influence of the quaternary ammonium cation structure on the annulation process which occurs in the Michael addition of ethyl

Essas intervenções são essenciais durante o processo, pois ajudam o professor a modular as aproximações e distanciamentos dos alunos em relação aos objetivos de

O Grupo EDP, na execução das estratégias que define, utiliza o balanced scorecard como ferramenta de apoio à gestão estratégica, pelo que, o BSC não é novidade

Numbers of viable biofilm cells decreased after treatment with all tested disinfectants (iodine, biguanide, quaternary ammonium compounds, peracetic acid and sodium

Pelo balanço energético realizado à caldeira, foi possível realizar uma avaliação quantitativa da energia associada aos reagentes (biomassa e ar de combustão)

Different sanitizer concentration, temperature, and contact time were evaluated for each of the four active principles tested, chlorhexidine (20%), ammonium quaternary

Succinylated mercerized cellulose (cell 1) was reacted with diisopropylcarbodi- imide and triethylenetetramine to introduce amine groups that can be transformed into quaternary