By Stuart L. Cooper, Jianjun Guan
Advances in Polyurethane Biomaterials brings jointly an intensive overview of advances within the homes and purposes of polyurethanes for biomedical purposes. the 1st set of chapters within the booklet presents an enormous assessment of the basics of this fabric with chapters on homes and processing tools for polyurethane. extra sections hide major makes use of corresponding to their tissue engineering and vascular and drug supply applications
Written by way of a global staff of best authors, the booklet is a finished and crucial reference in this very important biomaterial.
- Brings jointly in-depth assurance of a tremendous fabric, crucial for plenty of complicated biomedical applications
- Connects the basics of polyurethanes with cutting-edge research of vital new purposes, together with tissue engineering and drug delivery
- Written by means of a staff of hugely a professional authors with quite a number expert and educational adventure, overseen via an editor who's a number one professional within the field
Read Online or Download Advances in Polyurethane Biomaterials PDF
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Additional info for Advances in Polyurethane Biomaterials
PEGs (MW 300 and 1000) were further immobilized on this reactive surface. The PEGylated Tecothane™ surface was 40 Advances in Polyurethane Biomaterials then activated by a typical coupling reaction with BOC-protected lysine. Finally, the BOC-protecting group was removed by trifluoroacetic acid. The terminal NH2 on lysine preferentially captures plasminogen when exposed to blood. Plasminogen can be later converted into plasmin. Plasmin is believed to lyse fibrin, which binds platelets and participates in blood clotting.
Quantification by time-of-flight (TOF) SIMS survey with 125I radiolabeled protein counting. ) TOF–SIMS survey is known to be a qualitative method rather than quantitative method due to limitations of sensitivity and matrix complexity. The authors did a computation regression program to calculate protein adsorption based on intensity of several specific peaks in the TOF–SIMS spectrum. The authors found that TOF–SIMS results matched well with the 125I radiolabeling method in BSA/γ-globulin (IgG) and BSA/fibrinogen (Fg) binary protein binding.
Reprinted with permission and modified from Ref. . 22 Time dependence of frequency shift (Δf ) and dissipation shift (ΔD) for the adsorption of fibrinogen on a polymeric surfaces at 25 °C. Reprinted with permission from Ref. . some Fg adsorption but not as much as the control polymer by showing medium frequency change. ΔD will increase if the thickness of the protein adsorption layer increases. Again, zPDEM–PU32 and zPDEM–PU42 barely showed any increase of the baseline, implying significant protein adsorption reduction compared with control polymers.
Advances in Polyurethane Biomaterials by Stuart L. Cooper, Jianjun Guan