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Enhancement of incisional wound healing by thrombin conjugated iron oxide nanoparticles

Paper ID Volume ID Publish Year Pages File Format Full-Text
9488 632 2010 7 PDF Available
Title
Enhancement of incisional wound healing by thrombin conjugated iron oxide nanoparticles
Abstract

Thrombin has been clinically used for topical hemostasis and wound management for more than six decades. The half-life of thrombin in human plasma is shorter than 15 s due to close control by inhibitors. In order to stabilize the thrombin, it was bound to maghemite (γ-Fe2O3) nanoparticles, as demonstrated in previous work. The aim of the present study was to examine the efficiency of the bound thrombin for wound healing applications compared to the free thrombin. For this purpose incisional wounds on rat skin were treated with a mixture of fibrinogen, CaCl2 solution and free or bound thrombin. The wounds' edges were then approximated by skin staples. The control incisional wounds were closed with staples only. In the course of 28 days of healing the highest values of skin tensile strength were observed following treatment with the bound thrombin. Significantly lower values of tensile strength were observed following treatment with the free thrombin, and the lowest values were obtained following treatment with staples only. The histological findings correlate with the mechanical strength measurements, which demonstrate the most advanced stages of healing following treatment with the bound thrombin.

Keywords
Iron oxide nanoparticles; Immobilized thrombin; Wound healing; Fibrin; Tensile strength; Haemostasis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 31, Issue 4, February 2010, Pages 741–747
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us