Sikder lab demos myogenic platform

A new paper tied to Prabaha Sikder’s lab offers a compact example of where regenerative engineering is heading: printed structure, embedded actuation, and cell-level readouts in one platform. The work centers on volumetric muscle loss, a severe injury in which a large amount of skeletal muscle is destroyed and does not regenerate well on its own. (academic.csuohio.edu) Sikder’s group describes a piezoelectric, 3D-printed myogenic system designed to provide bioactive stimulation cues rather than act only as a passive scaffold. The study fits into a broader NIH-backed effort at Cleveland State University to build electroactive implants and “biorobot” systems for muscle repair. (lifescience.net) ### What problem is this platform trying to solve? (academic.csuohio.edu) Volumetric muscle loss, or VML, is the target injury in Sikder’s research program. The lab says VML commonly follows traumatic events such as road accidents, gunshot wounds and open fractures, and that current approaches struggle to restore full function. Cleveland State said in a 2025 research announcement that one major challenge is rebuilding neuromuscular junctions, the connections needed for muscle to work properly. The Sikder lab’s project page says existing regenerative approaches also face difficulty reinnervating newly formed muscle tissue. That is why the group’s approach combines tissue engineering with electrical stimulation and rehabilitation rather than relying on a scaffold alone. (academic.csuohio.edu) ### What is physically different about the device? The platform described in the paper is a flexible, microchanneled, 3D-printed construct with piezoelectric functionality. A publication summary says it is based on an interpenetrating hydrogel network of gelatin methacrylate and poly(acrylic acid) with barium titanate nanoparticles, giving the printed material the ability to generate electrical cues under mechanical input. (academic.csuohio.edu) Sikder’s lab describes the larger concept as a piezoelectric muscle construct that can generate low-level electrical stimulation autonomously from natural limb movement. In the lab’s framing, the construct is meant to both deliver cells and create a local stimulatory environment that supports regeneration, reinnervation and vascularization. (academic.csuohio.edu) ### Why use piezoelectric cues instead of wired stimulation? The central appeal of the design is that piezoelectric materials convert mechanical force into electrical output. In this case, that means movement can be turned into localized stimulation at the scaffold level, reducing dependence on wired external hardware for every cueing step. The lab says the goal is autonomous low-level electrical stimulation driven by natural limb mechanics. (lifescience.net) The Cleveland State project description ties that stimulation directly to muscle repair biology. The university said electrical stimulation is used because it is known to induce axonal growth in muscle, which is relevant to rebuilding neuromuscular junctions after severe injury. (academic.csuohio.edu) ### What makes this more than a materials demo? The architecture matters because it links fabrication, actuation and biology in one experimental system. The paper summary points to a bioinstructive, flexible printed platform rather than a simple inert support, and the lab’s project description places it inside in vitro and in vivo testing for regenerative function. (academic.csuohio.edu) For readers coming from device prototyping or student engineering, the useful template is straightforward: a printed scaffold defines geometry, a piezoelectric element supplies stimulus, and biological assays show whether the cue changes cell behavior. That is an inference from the platform design and the lab’s stated research goals, not a direct quote from the authors. (csu2.0.csuohio.edu) ### How does this fit into the lab’s broader program? Prabaha Sikder, an associate professor at Cleveland State University, leads a musculoskeletal regeneration program focused on smart biomaterials, 3D printing and electroactive implants. The lab says one of its main projects is “An Intelligent Bioprinted Biorobot for Regenerative Rehabilitation of Volumetric Muscle Loss,” backed by a $3 million, five-year NIH R01 from the National Institute of Arthritis and Musculoskeletal and Skin Diseases. (lifescience.net) NIH RePORTER describes that award as a regenerative rehabilitation project built around a piezoelectric, cell-laden 3D-bioprinted construct. The lab says the next phase includes preclinical evaluation and integration with neuromuscular eccentric contraction training, a rehabilitation protocol it abbreviates as NMET. (lifescience.net) (reporter.nih.gov) (academic.csuohio.edu)