Provided is a manufacturing method of uniformly spherical gold nanoparticles using a synthesis method for controlling a size and a shape by repeating an etching and growing.

Methods, apparatuses and systems are disclosed for chemically etching parts by generating an enclosed chemical etching chamber in contact with a part surface and directing a flow of chemical etchant solution in contact with a part region to be etched.

A process for manufacturing a molding element (10) of a curing mold, the molding element being manufactured by an additive manufacturing process, the molding element comprising a molding inner surface (12) and an outer surface (14), and the molding element comprising at least one vent (20) through which air can pass between the molding inner surface and the outer surface of the molding element, comprises the following steps: (a) additively manufacturing the molding element and at least one porous region in this molding element, the porous region being manufactured so as to have a material density lower than the material density of the molding element outside this porous region, and (b) using a process for removal of material by a laser beam or by a laser beam contained in a water jet to produce at least one vent (20) in the porous region.

A process for manufacturing a molding element of a curing mold, the molding element being manufactured by an additive manufacturing process, the molding element comprising a molding inner surface and an outer surface on the opposite side from the molding inner surface, and the molding element comprising at least one vent through which air can pass between the molding inner surface and the outer surface of the molding element, comprises the following steps: (a) additively manufacturing the molding element and the vent at the same time, the vent being manufactured with at least one dimension less than its final value, and (b) cleaning and enlarging the vent using a process of removal of material by chemical attack effected by immersing the molding element in a solely chemical bath so as to bring the vent to its final dimensions and to reduce the surface roughness of the vent.

A metal plate for manufacturing a deposition mask with reduced variation in dimension of through-holes. An average value of plate thicknesses of the metal plate in a longitudinal direction is within a 3% range around a predetermined value. When an average value of the plate thicknesses of the metal plate in the longitudinal direction is represented as A, and a value obtained by multiplying a standard deviation of the plate thicknesses of the metal plate in the longitudinal direction by 3 is represented as B, (B/A)100(%) is 5%. When a value obtained by multiplying a standard deviation of the plate thicknesses of the metal plate in the width direction by 3 is represented as C, and a value of a plate thickness of the metal plate at a central portion in the width direction is represented as X, (C/X)100(%) is 3%.

Methods, apparatuses and systems are disclosed for chemically etching parts by generating an enclosed chemical etching chamber in contact with a part surface and directing a flow of chemical etchant solution in contact with a part region to be etched.

Methods, apparatuses and systems are disclosed for chemically etching parts by generating an enclosed chemical etching chamber in contact with a part surface and directing a flow of chemical etchant solution in contact with a part region to be etched.

Methods, systems, and computer readable media for using actuated surface-attached posts for assessing biofluid rheology are disclosed. According to one aspect, a method for testing properties of a biofluid specimen includes placing the specimen onto a micropost array having a plurality of microposts extending outwards from a substrate, wherein each micropost includes a proximal end attached to the substrate and a distal end opposite the proximal end, and generating an actuation force in proximity to the micropost array to actuate the microposts, thereby compelling at least some of the microposts to exhibit motion. The method further includes measuring the motion of at least one of the microposts in response to the actuation force and determining a property of the specimen based on the measured motion of the at least one micropost.

Methods, systems, and computer readable media for using actuated surface-attached posts for assessing biofluid rheology are disclosed. According to one aspect, a method for testing properties of a biofluid specimen includes placing the specimen onto a micropost array having a plurality of microposts extending outwards from a substrate, wherein each micropost includes a proximal end attached to the substrate and a distal end opposite the proximal end, and generating an actuation force in proximity to the micropost array to actuate the microposts, thereby compelling at least some of the microposts to exhibit motion. The method further includes measuring the motion of at least one of the microposts in response to the actuation force and determining a property of the specimen based on the measured motion of the at least one micropost.

A wallet-sized comb is produced by a process of processing a metal substrate having a thickness similar to a credit card. The process includes receiving a comb design including a top portion and a teeth portion, the teeth portion including a plurality of spaced-apart teeth for combing hair and cutting the metal substrate based on the comb design, the cutting performed using a chemical etching technique, where the metal substrate has a thickness at or below 1.2 millimeter. The process further includes extracting a metal comb from the metal substrate generated from the chemical etching technique and de-burring the metal comb, as well as applying a powder coat finish to the metal comb to generate the wallet comb. The comb design may include a design and/or letters in the top portion, such top portion elements cut also using the chemical etching process.