2015
DOI: 10.4321/s2340-98942015000300004
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An Alternative Approach for Acetylation of Amine Terminated Polyamidoamine (PAMAM) Dendrimer

Abstract: RESUMENObjetivos. Las propiedades inherentes de la poliamidoamina (PAMAM) la han convertido en el nanotransportador de elección en la era actual de la innovación. A pesar de que sufren de toxicidad hemolítica que podría ser reducido mediante la protección del grupo amino libre. En el presente trabajo se discutió el método alternativo de acetilación para los dendrímeros PAMAM. Material y Métodos.El enlazador 1-Etill-3-(3-dimetilaminopropil) carbodiimida (EDC) se utilizó para la acetilación. El conjugado acetila… Show more

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Cited by 7 publications
(2 citation statements)
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“…The bands at 2935 cm −1 and 2831 cm −1 correspond to aliphatic C-H stretches. The amide carbonyl absorption (HNC = O) from the PAMAM dendrimer was observed at 1630 cm −1 , while at 1543 cm −1 , the amide N-C stretching was identified [21,22,23,24].…”
Section: Resultsmentioning
confidence: 99%
“…The bands at 2935 cm −1 and 2831 cm −1 correspond to aliphatic C-H stretches. The amide carbonyl absorption (HNC = O) from the PAMAM dendrimer was observed at 1630 cm −1 , while at 1543 cm −1 , the amide N-C stretching was identified [21,22,23,24].…”
Section: Resultsmentioning
confidence: 99%
“…The typical wavenumber close to 3300 cm −1 was associated with NH stretching of amines that could be noble evidence for free amino groups into amide bonds. 10,25 Once the surface amine groups of PAMAM dendrimers were substituted by carboxyl groups, the carboxylated dendrimers gave a spectrum (Figure S1b) displaying new bands at 1720 cm −1 (C�O stretching) and extended bands at 2500−3500 cm −1 (acidic OH stretching), as well as the bands described for the unmodified PAMAM dendrimer. 45 After conjugating Hyal with PAMAM, the appearance of several fingerprinting characteristic wavenumbers for proteins including amide I (C�O stretch), amide II (N−H bending vibrations), and amide III (C−N and N−H stretch) in the region of 1700−1050 cm −1 with a partial peak shift was indicative of anchored Hyal around the PAMAM core (Figure S1c).…”
Section: Preparation and Characterization Ofmentioning
confidence: 96%