Abstract: Disclosed is a method for fabricating coils including the steps of providing a liquid droplet having a diameter on length-scales ranging from hundreds of micrometers to nanometers and bringing a fiber into contact with the liquid droplet, wherein the radius of the liquid droplet is sufficiently high in comparison to the bending elastocapillary length which is defined as where E is the Young's modulus of the elastic fiber, r is the radius of the fiber and ? is the interfacial tension between the droplet and surrounding medium, so that capillary forces induce the spontaneous winding of the fiber around the droplet, to fabricate a coil with a diameter in the range from hundreds of micrometers to nanometers. Also disclosed is a system for making microcoils and to the product thereof.

Abstract: Nanomaterial-coated fibers and methods of manufacture thereof are provided. A nanomaterial-coated fiber includes a stretchable fiber core and a mesh of high aspect ratio nanomaterials coated around the stretchable fiber core. The mesh imparts a material property to the nanomaterial-coated fiber continuous throughout a length of the nanomaterial-coated fiber. The mesh maintains the material property upon stretching of the length of the nanomaterial-coated fiber. A nanomaterial-coated fiber is produced by obtaining a stretchable fiber core, coating the stretchable fiber core with high aspect ratio nanomaterials, and forming a mesh of the high aspect ratio nanomaterials around the stretchable fiber core. The mesh may be electrically conductive to impart electrical conductivity to the nanomaterial-coated fiber. Nanomaterial-coated fibers may be wound into a yarn.

Abstract: Disclosed is a method for fabricating coils including the steps of providing a liquid droplet having a diameter on length-scales ranging from hundreds of micrometers to nanometers and bringing a fiber into contact with the liquid droplet, wherein the radius of the liquid droplet is sufficiently high in comparison to the bending elastocapillary length which is defined as where E is the Young's modulus of the elastic fiber, r is the radius of the fiber and ? is the interfacial tension between the droplet and surrounding medium, so that capillary forces induce the spontaneous winding of the fiber around the droplet, to fabricate a coil with a diameter in the range from hundreds of micrometers to nanometers. Also disclosed is a system for making microcoils and to the product thereof.