Biomimetic adhesives for artificial nails via complex coacervation
Innovative biomimetic adhesive technology using complex coacervation for artificial nails, inspired by mussel adhesion and environmental disassembly via salt, offering safe and user-friendly application and removal.
Overview
Our cutting-edge biomimetic adhesive utilizes the phenomenon of complex coacervation to create a versatile and user-friendly solution for artificial nails. By employing biocompatible polymers, carboxymethylcellulose (CMC), and poly(diallyldimethylammonium chloride) (PDADMAC), this adhesive mimics natural adhesive processes, such as those used by mussels. The key advantage is its environmentally responsive disassembly, allowing for easy removal with salt, thereby ensuring safe and convenient application at home.
Technical specifications
Our adhesive system is based on a coacervate formed through the interaction of CMC and PDADMAC. The optimal molar ratio of these polymers is determined through precise adjustments and observed using brightfield microscopy and turbidity measurements. Additionally, salt stability experiments identify the critical NaCl concentration required for the dissolution of the coacervates. This dense phase adhesive demonstrates effective bonding between plastic and gelatin, with performance validated through tensile, shear, and peel strength tests both in dry conditions and when submerged in water.
Technology readiness level
Currently at Technology Readiness Level 2, the adhesive is in the concept stage with experimental validation ongoing. Future tests aim to refine the adhesive's properties and confirm its practical application for artificial nails, focusing on the ease of release when immersed in salt solutions.
About Lehigh University
Lehigh University is a private, mid-sized research university in Bethlehem, Pennsylvania focused on interdisciplinary, hands-on problem solving. A multi-campus footprint includes a research campus with co-located labs, instrumentation, and prototyping spaces for rapid iteration with industry. Corporate engagement staff streamline sponsored research, capstones, internships, and short courses, and an on-campus incubator links partners to startup pipelines. Proximity to New York City and Philadelphia enables collaboration with regional manufacturers, logistics leaders, and growth-stage firms. Faculty secure competitive federal funding from agencies such as the NSF and DOE, and a technology transfer office supports IP, licensing, and new venture formation.
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