Document Detail


A Fast pH-Switchable and Self-Healing Supramolecular Hydrogel Carrier for Guided, Local Catheter Injection in the Infarcted Myocardium.
MedLine Citation:
PMID:  23788397     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Minimally invasive intervention strategies after myocardial infarction use state-of-the-art catheter systems that are able to combine mapping of the infarcted area with precise, local injection of drugs. To this end, catheter delivery of drugs that are not immediately pumped out of the heart is still challenging, and requires a carrier matrix that in the solution state can be injected through a long catheter, and instantaneously gelates at the site of injection. To address this unmet need, a pH-switchable supramolecular hydrogel is developed. The supramolecular hydrogel is switched into a liquid at pH > 8.5, with a viscosity low enough to enable passage through a 1-m long catheter while rapidly forming a hydrogel in contact with tissue. The hydrogel has self-healing properties taking care of adjustment to the injection site. Growth factors are delivered from the hydrogel thereby clearly showing a reduction of infarct scar in a pig myocardial infarction model.
Authors:
Maartje M C Bastings; Stefan Koudstaal; Roxanne E Kieltyka; Yoko Nakano; A C H Pape; Dries A M Feyen; Frebus J van Slochteren; Pieter A Doevendans; Joost P G Sluijter; E W Meijer; Steven A J Chamuleau; Patricia Y W Dankers
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-6-21
Journal Detail:
Title:  Advanced healthcare materials     Volume:  -     ISSN:  2192-2640     ISO Abbreviation:  Adv Healthc Mater     Publication Date:  2013 Jun 
Date Detail:
Created Date:  2013-6-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101581613     Medline TA:  Adv Healthc Mater     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Affiliation:
Institute for Complex Molecular Systems, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands; Laboratory of Chemical Biology, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands.
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