نتایج جستجو برای: polymer degradation
تعداد نتایج: 240989 فیلتر نتایج به سال:
The creation of a new photoluminescent platform to study their photo physics and further applications is important in the fields chemistry, material, physics, etc. In this work, we developed benzene-based fluorophores generated by chemical reactions on conjugate acceptor precursors. Their optical properties have been studied, large Stokes shifts, high molar extinction coefficients quantum yield...
Many investigators have engineered diverse connective tissues having good mechanical properties, yet few tools enable a global understanding of the associated formation of collagen fibers, the primary determinant of connective tissue stiffness. Toward this end, we developed a biomechanical model for collagenous tissues grown on polymer scaffolds that accounts for the kinetics of polymer degrada...
Poly(hydroxybutyrate) (PHB) obtained from sugar cane was dissolved in a blend of chloroform and dimethylformamide (DMF) and electrospun at 40 oC. By adding DMF to the solution, the electrospinning process for the PHB polymer becomes more stable, allowing complete polymer crystallization during the jet travelling between the tip and the grounded collector. The influence of processing parameters ...
BACKGROUND The interplay between mechanical dilatation, resorption, and arterial response following implantation of bioresorbable scaffolds is still poorly understood. METHODS AND RESULTS Long-term geometric changes in porcine coronary arteries in relation to gradual degradation of bioresorbable scaffolds were assessed in comparison with bare metal stents (BMS). Intravascular ultrasound (IVUS...
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