Example nanoparticles may include an iron-based core, and a shell. The shell may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example alloy compositions may include an iron-based grain, and a grain boundary. The grain boundary may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example techniques for forming iron-based core-shell nanoparticles may include depositing a shell on an iron-based core. The depositing may include immersing the iron-based core in a salt composition for a predetermined period of time. The depositing may include milling the iron-based core with a salt composition for a predetermined period of time. Example techniques for treating a composition comprising core-shell nanoparticles may include nitriding the composition.

The present invention provides a nickel nanowire, which is resistant to break by stress. The present invention relates to a nickel nanowire having a face-centered cubic lattice structure and a crystallite size in a direction of a (111) lattice plane of 10 nm or less.

A method to synthesize a silver nanohybrid material. The method includes mixing a nitrate solution with a citrate solution to form silver nanoparticles (AgNPs). The method further includes esterifying a first mixture including octadecanoic acid, octadec-9-enoic acid, and octadeca-9,12-dienoic acid with caffeic acid in the presence of an acid catalyst and a solvent to form an unsaturated carboxylic acid mixture including first, second, and third acrylic acid derivatives. The method includes reacting the unsaturated carboxylic acid mixture with ethylene glycol to form a second mixture including first, second, and third ester derivatives. The method further includes mixing the AgNPs with the second mixture to form a third mixture. The method includes evaporating water from the third mixture to form the silver nanohybrid material. The silver nanohybrid material includes a AgNP core covered with the first, second, and third ester derivatives bonded to the AgNP core.

Printable, molecule-selective core-shell nanoparticles that couple a redox-active core with a molecularly imprinted polymer (MIP) shell. The core may comprise nickel hexacyanoferrate nanocubes with improved redox stability in physiological media. A thin MIP shell may be formed by templated copolymerization (e.g., methacrylic acid with ethylene glycol dimethacrylate) around the nanocubes, followed by template extraction to generate target-complementary binding cavities. Monomer selection may be guided computationally to maximize binding energy and selectively for a chosen analyte. Target binding within the MIP shell may modulate interfacial electron transfer at the core, enabling more robust and reversible electrochemical transduction. The nanoparticles may be formulated into stable, inkjet-printable dispersions via optimized solvent systems and exhibit cytocompatibility, anti-biofouling behavior, thermal resilience, and long room-temperature shelf stability.