PEG-PLLA microspheres
Introduction: PEG-PLLA microspheres are amphiphilic polymer microspheres that combine the characteristics of polyethylene glycol (PEG) and polylactic acid (PLLA), exhibiting excellent biocompatibility, biodegradability, and biosafety. These microspheres demonstrate remarkable potential for applications in drug delivery, tissue engineering, and regenerative medicine. Currently, medical aesthetic filler products based on PEG-PLLA microspheres have been clinically applied.
Product name | PEG-PLLA microspheres | |
CAS number | PEG：25322-68-3；PLLA：33135-50-1 | |
Testing items | detection method | Inspection requirements |
Viscosity-average molecular weight specification | Ubbelohde viscometer method | 3-5/7-9/9-11 (10,000) |
molecular weight distribution | GPC | ≤2.0 |
Particle size specification | Laser particle size analyzer | 20-40μm 40-60μm |
Particle size span (span value) | Laser particle size analyzer | ≤0.7 |
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