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Full-Text Articles in Biomedical

Comprehensive Collagen Crosslinking Comparison Of Microfluidic Wet-Extruded Microfibers For Bioactive Surgical Suture Development, Amrita Dasgupta, Nardos Sori, Stella Petrova, Yas Maghdouri-White, Nick Thayer, Nathan Kemper, Seth Polk, Delaney Leathers, Kelly Coughenour, Jake Dascoli, Riya Palikonda, Connor Donahue, Anna A. Bulysheva, Michael P. Francis Jan 2021

Comprehensive Collagen Crosslinking Comparison Of Microfluidic Wet-Extruded Microfibers For Bioactive Surgical Suture Development, Amrita Dasgupta, Nardos Sori, Stella Petrova, Yas Maghdouri-White, Nick Thayer, Nathan Kemper, Seth Polk, Delaney Leathers, Kelly Coughenour, Jake Dascoli, Riya Palikonda, Connor Donahue, Anna A. Bulysheva, Michael P. Francis

Bioelectrics Publications

Collagen microfiber-based constructs have garnered considerable attention for ligament, tendon, and other soft tissue repairs, yet with limited clinical translation due to strength, biocompatibility, scalable manufacturing, and other challenges. Crosslinking collagen fibers improves mechanical properties; however, questions remain regarding optimal crosslinking chemistries, biocompatibility, biodegradation, long-term stability, and potential for biotextile assemble at scale, limiting their clinical usefulness. Here, we assessed over 50 different crosslinking chemistries on microfluidic wet-extruded collagen microfibers made with clinically relevant collagen to optimize collagen fibers as a biotextile yarn for suture or other medical device manufacture. The endogenous collagen crosslinker, glyoxal, provides extraordinary fiber ultimate tensile …


Optimization Of Collagen Microneedle Using Taguchi Method, Abhilash Aditya Jan 2017

Optimization Of Collagen Microneedle Using Taguchi Method, Abhilash Aditya

Open Access Theses & Dissertations

Research is conducted to create dissolving collagen microneedles and to optimize the parameters for close to perfect dimension microneedles. A collagen microneedle patch has been developed with a micro-manufacturing process (micro-molding process). The collagen microneedles, varying in length from 300 to 600-μm may reach different targeted layers of the skin depending on the application. As the microneedles penetrate the skin they dissolve, delivering collagen through the epidermis. Such addition of collagen directly to the dermis layers allows it to be absorbed, increasing skin's strength and resilience, since it is one of the natural components of the younger looking skin. This …