نتایج جستجو برای: poly lactide
تعداد نتایج: 80917 فیلتر نتایج به سال:
Tapping mode atomic force microscopy was used to investigate the lamellar morphology of poly(l-lactide) and two poly(l-lactide-co-meso-lactide) random copolymers containing 3% and 6% meso-lactide. Samples were isothermally crystallized at selected temperatures, and qualitative and quantitative analyses of lamellar structure were performed using height and phase images. This is the first study o...
Bicalutamide is the most widely used non-steroidal antiandrogen for treating early stage prostate cancer, but suffers variable oral absorption due to its limited aqueous solubility. Thus, our objective was to synthesize novel biodegradable copolymers for the systemic micellar delivery of bicalutamide. Flory-Huggins interaction parameter (cFH) was used to assess compatibility between bicalutamid...
The purpose of this study was to compare: a new five-layered poly (L-lactide-co-caprolactone) (PLC) membrane and small intestinal submucosa (SIS) as a control in rat urinary bladder wall regeneration. The five-layered poly (L-lactide-co-caprolactone) membrane was prepared by an electrospinning process. Adipose tissue was harvested from five 8-week old male Wistar rats. Adipose derived stem cell...
Sustainable plastics sourced without virgin petrochemicals, that are easily recyclable and with potential for degradation at end of life, urgently needed. Here, copolymersand blends meeting these criteria efficiently prepared using a single catalyst existing commercial monomers l-lactide, propylene oxide, maleic anhydride. The selective, one-reactor polymerization applies an industry-relevant t...
In this work, biodegradable Poly(L-lactide) (PLLA) was modified through adding a new organic additive N, N -bis(benzoyl) 1, 4-naphthalenedicarboxylic acid dihydrazide (NABH). A comparison on crystallization of the pure PLLA and PLLA/NABH revealed that NABH as effective heterogeneous nucleation sites enhanced PLLA
Characteristic poly(l-lactide) absorption peaks were identified at 1.8, 4.0, 4.7, and 7.1 THz for an 80 °C crystallization temperature (Tc) sample; higher Tc resulted in a blue shift of the peak frequency.
UNLABELLED Fluorescent biomaterials have attracted significant research efforts in the past decades. Herein, we report a new series of biodegradable, fluorescence imaging-enabled copolymers, biodegradable photoluminescent poly(lactide-co-glycolide) (BPLP-co-PLGA). Photoluminescence characterization shows that BPLP-co-PLGA solutions, films and nanoparticles all exhibit strong, tunable and stable...
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