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Issue 40, 2010
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Sugars: burden or biomaterials of the future?

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During the past few years, the field of tissue engineering (TE) has been shifting from replacement to regenerative strategies. Following this tendency, the requirements for biomaterials to be used in TE have been also changing. While a few decades ago bioinert materials that do not provoke undesired body responses were in the focus of material sciences, nowadays third generation biomaterials mimicking the nanoscale mechanisms of the interactions between cells and their in vivo environment are the target of material design. Although these mechanisms involve different bioactive molecules, until now mainly strategies involving small peptide epitopes that copycat specific sequences of complex proteins have been exploited. The breakthroughs that such approaches brought to biomaterials and TE fields are undeniable. Nevertheless, the important role that carbohydrates play in tissue structuring and function is still poorly explored and exploited in this context and we believe that this is one of the missing pieces in the TE puzzle. Carbohydrates are an integral part of our life. We are literally covered by them: from bacteria to mammalian cells, the molecular landscape of the cell surface is coated with sugars forming the so-called glycocalyx. This strategic placement of the sugars makes them crucial for the development, growth, function and/or survival of an organism. It is believed that the structural diversity of carbohydrates is the key for understanding and controlling those processes because of the huge number of ligand structures, which sugars can display in molecular recognition systems. However, their main advantages: the intricacy and the large natural diversity have turned against the scientists and have hampered their study. As a result, the field of glycomics is much less developed compared to its counterparts genomics and proteomics within TE. Recent advances in carbohydrate synthesis, sensing technologies and processing methodologies are inducing rapid changes in this field and will be discussed in this paper. The use of carbohydrates as an interrogation and modulation tool for better understanding of the complexity and dynamics of the natural three-dimensional environment of the cells will be also focussed.

Graphical abstract: Sugars: burden or biomaterials of the future?

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Publication details

The article was received on 26 May 2010, accepted on 30 Jul 2010 and first published on 17 Sep 2010

Article type: Feature Article
DOI: 10.1039/C0JM01605E
J. Mater. Chem., 2010,20, 8803-8818

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    Sugars: burden or biomaterials of the future?

    I. Pashkuleva and R. L. Reis, J. Mater. Chem., 2010, 20, 8803
    DOI: 10.1039/C0JM01605E

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