Magnetic cellulose nanocrystals (MCNCs) were prepared and used as an enzyme support for immobilization of Pseudomonas cepacialipase (PCL). PCL was successfully immobilized onto MCNCs (PCL@MCNC) by a precipitation-cross-linking method. The resulting PCL@MCNC with a nanoscale size had high enzyme loading (82.2 mg enzyme/g) and activity recovery (95.9%). Compared with free PCL, PCL@MCNC exhibited ...

polycaprolactone (pcl) and poly(butylene terephthalate) (pbt) blend was prepared by melt processing. the pcl/pbt blend showed similar morphology with that of pure pcl.the crystallization temperature of pcl was increased by the incorporation of pbt. it was also observed that the peak height in the dsc thermograms decreased and then disappeared by adding 40 % or more pbt which might be due to the...

Biocomposite scaffolds were fabricated by incorporation of nanobredigite (n-BD) into the polymer of poly(ε-caprolactone)-poly(ethyleneglycol)-poly(ε-caprolactone) (PCL-PEG-PCL). The results revealed that the addition of n-BD into PCL-PEG-PCL significantly improved water absorption, compressive strength, and degradability of the scaffolds of n-BD/PCL-PEG-PCL composite (n-BPC) compared with PCL-P...

Star-shaped polymer micelles have good stability against dilution with water, showing promising application in drug delivery. In this work, biodegradable micelles made from star-shaped poly(ε-caprolactone)/poly(ethylene glycol) (PCL/PEG) copolymer were prepared and used to deliver doxorubicin (Dox) in vitro and in vivo. First, an acrylated monomethoxy poly (ethylene glycol)-poly(ε-caprolactone)...

BACKGROUND In this study, we examined two polycaprolactone (PCL)-based dermal filler formulas (PCL-1; PCL-2) for safety, patient satisfaction, likelihood to return, efficacy, and duration of correction. OBJECTIVE This 40-patient, 24-month, prospective, randomized, controlled study evaluated the efficacy, safety, longevity, and volume of two PCL formulas for correction of nasolabial folds. M...

Scaffolds for cartilage tissue engineering should promote both adequate biomechanical environment and chondrogenic stimulation. Hyaluronic acid (HA) has been used in cartilage engineering for its chondrogenic and chondroprotective properties, nevertheless its mechanical properties are limited. Influence of HA microstructure in chondrocyte response has not been addressed yet. In this work, polyc...

Ratio blends of PLGA/PCL: (0:10), (1:9), (2:8), (3:7), (4:6), (5:5), (6:4), (7:3), (8:2), (9:1), and (10:0) were spin-coated to produce thin films; surface topographies were determined using interferometric microscopy. It was demonstrated that micro-wells of a defined size (150 mm) were present in all PCL dominant PLGA/PCL systems. Stratification of PLGA with PCL enabled the formation of that s...

BACKGROUND The natural history of posterior cruciate ligament (PCL) deficiency includes the development of arthrosis in the patellofemoral joint (PFJ). The purpose of this biomechanical study was to evaluate the hypothesis that dynamic bracing reduces PFJ pressures in PCL- and combined PCL/posterolateral corner (PLC)-deficient knees. STUDY DESIGN Controlled Laboratory Study. METHODS Eight f...

the aims of the study were to investigate the effect of poly(ε -caprolactone) (pcl) and nano- sio2 within the thermoplastic starch (tps) blends on the rate and extent of starch enzymatic hydrolysis using enzymes α-amylase and amyloglucosidase. the results of this study have revealed that blends with nano-sio2 content at 6 wt% exhibited a significantly reduced rate and extent of starch hydrolysi...