A method for arranging particles at an interface between (i) a water soluble matrix comprising one or more water soluble polymers selected from the group consisting of polyvinyl alcohol, cellulose ethers, polyethylene oxide, starch, polyvinylpyrrolidone, polyacrylamide, polyvinyl methylether-maleic anhydride, polymaleic anhydride, styrene maleic anhydride, hydroxyethyl cellulose, methylcellulose, polyethylene glycols, carboxymethylcellulose, polyacrylicacid salts, alginates, acrylamide copolymers, guar gum, casein, ethylene-maleic anhydride resin, polyethyleneimine, ethyl hydroxyethylcellulose, ethyl methylcellulose, and hydroxyetyl methylcellulose, and (ii) a matrix comprising: - a viscous material, which is an adhesive and/or an elastomeric material, wherein the viscous material has a viscosity of 300 mPa·s (300 centipoise) or more, - and particles, said (i) water soluble matrix and (ii) said matrix comprising a viscous material and particles being essentially immiscible, and exhibiting different solubilities allowing for selective dissolution of said water soluble matrix without or essentially without dissolving said matrix comprising a viscous material and particles, said method comprising the steps of: - contacting the water soluble matrix and/or the matrix comprising a viscous material and particles with a support comprising at least one side, said at least one side of the support facing the water soluble matrix and/or the matrix comprising a viscous material and particles, - placing the water soluble matrix in contact with the matrix comprising a viscous material and particles thereby providing a structure comprising at least one interface between said water soluble matrix and said matrix comprising a viscous material and particles, - subjecting the particles in said structure to an electric field and/or a magnetic field thereby forming the particles into at least one pathway of particles, said at least one pathway of particles comprising a termination at the at least one interface between the water soluble matrix and the matrix comprising a viscous material and particles, and - fixating the viscous material so as to fixate the at least one pathway of particles, characterized in that said method comprises a step of exposing said termination by dissolving the water soluble matrix. (i) a water soluble matrix comprising one or more water soluble polymers selected from the group consisting of polyvinyl alcohol, cellulose ethers, polyethylene oxide, starch, polyvinylpyrrolidone, polyacrylamide, polyvinyl methylether-maleic anhydride, polymaleic anhydride, styrene maleic anhydride, hydroxyethyl cellulose, methylcellulose, polyethylene glycols, carboxymethylcellulose, polyacrylicacid salts, alginates, acrylamide copolymers, guar gum, casein, ethylene-maleic anhydride resin, polyethyleneimine, ethyl hydroxyethylcellulose, ethyl methylcellulose, and hydroxyetyl methylcellulose, and (ii) a matrix comprising: - a viscous material, which is an adhesive and/or an elastomeric material, wherein the viscous material has a viscosity of 300 mPa·s (300 centipoise) or more, - and particles, - a viscous material, which is an adhesive and/or an elastomeric material, wherein the viscous material has a viscosity of 300 mPa·s (300 centipoise) or more, - and particles, being essentially immiscible, and exhibiting different solubilities allowing for selective dissolution of said water soluble matrix without or essentially without dissolving said matrix comprising a viscous material and particles, - contacting the water soluble matrix and/or the matrix comprising a viscous material and particles with a support comprising at least one side, said at least one side of the support facing the water soluble matrix and/or the matrix comprising a viscous material and particles, - placing the water soluble matrix in contact with the matrix comprising a viscous material and particles thereby providing a structure comprising at least one interface between said water soluble matrix and said matrix comprising a viscous material and particles, - subjecting the particles in said structure to an electric field and/or a magnetic field thereby forming the particles into at least one pathway of particles, said at least one pathway of particles comprising a termination at the at least one interface between the water soluble matrix and the matrix comprising a viscous material and particles, and - fixating the viscous material so as to fixate the at least one pathway of particles, characterized in that said method comprises a step of exposing said termination by dissolving the water soluble matrix.