adj.of animals or fruits that have a shell

Shelled-isolated nanoparticle-enhanced Raman spectroscopy
Hierarchical Shelled ZnO Structures Made of Bunched Nanowire Arrays
Lipid-shelled vehicles: engineering for ultrasound molecular imaging and drug delivery.
Double-shelled CoMn2O4 hollow microcubes as high-capacity anodes for lithium-ion batteries.
Confining Sulfur in Double-Shelled Hollow Carbon Spheres for Lithium-Sulfur Batteries
Double-Shelled Nanocapsules of V2O5-Based Composites as High-Performance Anode and Cathode Materials for Li Ion Batteries
Preparation and Characterization of Nanoparticles Shelled with Chitosan for Oral Insulin Delivery
ChemInform Abstract: Confining Sulfur in Double-Shelled Hollow Carbon Spheres for Lithium—Sulfur Batteries
General synthetic route toward functional hollow spheres with double-shelled structures.
Systematics and taxonomy of soft-shelled turtles (Family Trionychidae) from the Judith River Group (mid-Campanian) of North America