Particle.news

Download on the App Store

Remora-Inspired MUSAS Device Shows Week-Long HIV Drug Release and High-Speed Environmental Sensing

Published in Nature, the study reveals how compartmentalized lamellae with shape-memory spinules enable passive adhesion for controlled GI drug release

Content cover image
Image
Image
Image

Overview

  • MUSAS uses a silicone-based, temperature-responsive disk patterned with compartmentalized lamellae and shape-memory alloy spinules to interlock with soft, dynamic tissues without motors.
  • In mid-2025 animal trials demonstrated sustained release of the HIV antiviral cabotegravir over one week from the device adhered to the stomach lining.
  • A version incorporating microneedle-style spinules successfully delivered luciferase-encoding RNA into gastrointestinal and oral tissues in vivo.
  • By integrating a temperature sensor, MUSAS adhered to swimming fish and provided accurate, high-speed water temperature readings for environmental monitoring.
  • Following peer-reviewed publication, the team is exploring next-generation applications including vaccine delivery and implantable electrical stimulation devices.