Annals of Biomedical Engineering

, Volume 45, Issue 10, pp 2348–2359 | Cite as

Electrospun PLGA Nanofiber Scaffolds Release Ibuprofen Faster and Degrade Slower After In Vivo Implantation

  • Corinne N. Riggin
  • Feini Qu
  • Dong Hwa Kim
  • Julianne Huegel
  • David R. Steinberg
  • Andrew F. Kuntz
  • Louis J. Soslowsky
  • Robert L. Mauck
  • Joseph BernsteinEmail author


While delayed delivery of non-steroidal anti-inflammatory drugs (NSAIDs) has been associated with improved tendon healing, early delivery has been associated with impaired healing. Therefore, NSAID use is appropriate only if the dose, timing, and mode of delivery relieves pain but does not impede tissue repair. Because delivery parameters can be controlled using drug-eluting nanofibrous scaffolds, our objective was to develop a scaffold for local controlled release of ibuprofen (IBP), and characterize the release profile and degradation both in vitro and in vivo. We found that when incubated in vitro in saline, scaffolds containing IBP had a linear release profile. However, when implanted subcutaneously in vivo or when incubated in vitro in serum, scaffolds showed a rapid burst release. These data demonstrate that scaffold properties are dependent on the environment in which they are placed and the importance of using serum, rather than saline, for initial in vitro evaluation of biofactor release from biodegradable scaffolds.


NSAID Tendon healing Polymer scaffold 



This work was supported by a Merit Grant from the Department of Veterans’ Affairs [O0979-R]; the National Institutes of Health [T32 AR007132, P30 AR050950]; and a National Science Foundation Graduate Research Fellowship.

Conflict of interest

The authors have no relevant disclosures related to this study.


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Copyright information

© Biomedical Engineering Society (Outside the U.S.) 2017

Authors and Affiliations

  • Corinne N. Riggin
    • 1
    • 2
    • 3
  • Feini Qu
    • 1
    • 2
    • 4
  • Dong Hwa Kim
    • 1
    • 2
  • Julianne Huegel
    • 1
    • 2
  • David R. Steinberg
    • 1
    • 2
  • Andrew F. Kuntz
    • 1
    • 2
  • Louis J. Soslowsky
    • 1
    • 2
    • 3
  • Robert L. Mauck
    • 1
    • 2
    • 3
  • Joseph Bernstein
    • 1
    • 2
    Email author
  1. 1.Translational Musculoskeletal Research CenterCorporal Michael J. Crescenz Philadelphia VA Medical CenterPhiladelphiaUSA
  2. 2.McKay Orthopaedic Research LabUniversity of PennsylvaniaPhiladelphiaUSA
  3. 3.Department of BioengineeringUniversity of PennsylvaniaPhiladelphiaUSA
  4. 4.School of Veterinary MedicineUniversity of PennsylvaniaPhiladelphiaUSA

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