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Mar Drugs. 2014 Dec 15;12(12):5979-92. doi: 10.3390/md12125979.

Customizing properties of β-chitin in squid pen (gladius) by chemical treatments.

Author information

1
Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum, University of Bologna, via Selmi 2, 40126 Bologna, Italy. alessandro.ianiro@gmail.com.
2
Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum, University of Bologna, via Selmi 2, 40126 Bologna, Italy. matteo.digiosia2@unibo.it.
3
Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum, University of Bologna, via Selmi 2, 40126 Bologna, Italy. simona.fermani@unibo.it.
4
Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum, University of Bologna, via Selmi 2, 40126 Bologna, Italy. chiara.samori3@unibo.it.
5
National Research Council (CNR), Institute for Nanostructured Materials (ISMN), Via P. Gobetti 101, 40129 Bologna, Italy. m.barbalinardo@bo.ismn.cnr.it.
6
National Research Council (CNR), Institute for Nanostructured Materials (ISMN), Via P. Gobetti 101, 40129 Bologna, Italy. f.valle@bo.ismn.cnr.it.
7
Centre for Regenerative Medicine "Stefano Ferrari", University of Modena and Reggio Emilia, Via G. Gottardi, 100, 41125 Modena, Italy. graziella.pellegrini@unimore.it.
8
Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 183, 41125 Modena, Italy. fabio.biscarini@unimore.it.
9
Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum, University of Bologna, via Selmi 2, 40126 Bologna, Italy. francesco.zerbetto@unibo.it.
10
Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum, University of Bologna, via Selmi 2, 40126 Bologna, Italy. matteo.calvaresi3@unibo.it.
11
Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum, University of Bologna, via Selmi 2, 40126 Bologna, Italy. giuseppe.falini@unibo.it.

Abstract

The squid pen (gladius) from the Loligo vulgaris was used for preparation of β-chitin materials characterized by different chemical, micro- and nano-structural properties that preserved, almost completely the macrostructural and the mechanical ones. The β-chitin materials obtained by alkaline treatment showed porosity, wettability and swelling that are a function of the duration of the treatment. Microscopic, spectroscopic and synchrotron X-ray diffraction techniques showed that the chemical environment of the N-acetyl groups of the β-chitin chains changes after the thermal alkaline treatment. As a consequence, the crystalline packing of the β-chitin is modified, due to the intercalation of water molecules between β-chitin sheets. Potential applications of these β-chitin materials range from the nanotechnology to the regenerative medicine. The use of gladii, which are waste products of the fishing industry, has also important environmental implications.

PMID:
25517216
PMCID:
PMC4278213
DOI:
10.3390/md12125979
[Indexed for MEDLINE]
Free PMC Article

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