NOVELTY - Solvent system comprises: (a) a pristine nanoparticle solute in liquid suspension, where the solute is a metal oxide, a mixed metal oxide, a chalcogenide, or a mixed metal chalcogenide; and (b) a solvent (S1) having a chi value of less than 0.    USE - The solvent system is useful: in UV absorbing composition, electrode (all claimed), paint or alternative optical coating, solar cells; and for manufacturing articles and materials, and forming a similar coating or film with semiconductor characteristics.    ADVANTAGE - The solvent system exhibits higher dispersion capacity and provides high efficiency lithium-ion battery and ultracapacitor electrodes.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) a solution comprising titanium dioxide nanowires in liquid suspension, and the solvent (S1);    (2) manufacturing an electrode comprising: introducing a group of titanium dioxide nanowires into a solvent (S2) to dissolve the group of titanium dioxide nanowires, where the solvent (S2) has a chi value of less than 0.01; applying the solvent (S2) and dissolved group of titanium dioxide nanowires to a surface to produce an assemblage of titanium dioxide nanowires interconnecting electrically in a discrete layer; and removing substantially all of the solvent (S2);    (3) an electrode comprising: an assemblage of titanium dioxide nanowires interconnecting electrically in a discrete layer; a surface receiving the assemblage of titanium dioxide nanowires; and a trace amount of a solvent (S3);    (4) sorting titanium dioxide nanowires, comprising: providing a group of titanium dioxide nanowires; applying the solvent (S2) to the group of titanium dioxide nanowires to dissolve the group of titanium dioxide nanowires; and removing the solvent (S2);    (5) a UV absorbing composition comprising: (a) as above per se; (b1) trace amounts of the solvent (S3); and (c1) a delivery system or a carrier base composition; and    (6) a plastic composite containing pristine nanoparticles, comprising: (a) and (b1) as above per se; and (c2) a liquid phase polymer.