Abstract: A method for fabricating microfluidic structures is provided. The method includes: a belt is provided and an adhesion layer is formed on at least one surface of the belt; the belt is cut for forming a first microfluidic channel thereon, wherein the first microfluidic channel has an accommodating space; a second microfluidic channel is provided, wherein a line-width of the second microfluidic channel is smaller than a line-width of the first microfluidic channel; the second microfluidic channel is disposed in the accommodating space of the first microfluidic channel; and a substrate is adhered to the belt via the adhesion layer.

Abstract: A biosensor for detecting the presence of a target compound in a test solution is disclosed. The biosensor includes upper and lower carrier plates, a spacer film with a micro-channel, an inlet port upstream of the micro-channel, an outlet port downstream of the micro-channel, a micro-machined transceiver, and a first molecularly imprinted polymer layer for recognizing and binding the target compound. The micro-machined transceiver includes a micro-machined transmitter for generating an acoustic wave, and micro-machined receiver for generating an acoustic wave-induced voltage. An amplitude of the acoustic wave-induced voltage is varied in response to the concentration of the target compound.

Abstract: A method for fabricating microfluidic structures is provided. The method includes: a belt is provided and an adhesion layer is formed on at least one surface of the belt; the belt is cut for forming a first microfluidic channel thereon, wherein the first microfluidic channel has an accommodating space; a second microfluidic channel is provided, wherein a line-width of the second microfluidic channel is smaller than a line-width of the first microfluidic channel; the second microfluidic channel is disposed in the accommodating space of the first microfluidic channel; and a substrate is adhered to the belt via the adhesion layer.

Abstract: The present invention proposes an electrode thin film and a method for manufacturing the electrode thin film. The method includes: determining a height between a first roller and a substrate and a coating speed for the first roller coating a first metal nanowire suspension liquid onto the substrate based on a suspension property of the first metal nanowire suspension liquid; coating, by using the first roller, the first metal nanowire suspension liquid onto the substrate with the coating speed to form a wetting film on the substrate; and controlling a first temperature of the substrate heating the wetting film based on the suspension property of the first metal nanowire suspension liquid to dry the wetting film as the electrode thin film. The first temperature makes a dewetting speed of the wetting film higher than a drying speed of the wetting film.

Abstract: A biosensor for detecting the presence of a target compound in a test solution is disclosed. The biosensor includes upper and lower carrier plates, a spacer film with a micro-channel, an inlet port upstream of the micro-channel, an outlet port downstream of the micro-channel, a micro-machined transceiver, and a first molecularly imprinted polymer layer for recognizing and binding the target compound. The micro-machined transceiver includes a micro-machined transmitter for generating an acoustic wave, and micro-machined receiver for generating an acoustic wave-induced voltage. An amplitude of the acoustic wave-induced voltage is varied in response to the concentration of the target compound.

Abstract: A method for promoting an electric output of a piezoelectric/conductive hybrid polymer is provided. The method includes forming a piezoelectric/conductive hybrid polymer by mixing poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) so as to increase an output current and an output power of the piezoelectric/conductive hybrid polymer; and changing a surface structure of the piezoelectric/conductive hybrid polymer by a nano-imprint process for promoting a piezoelectricity of the piezoelectric/conductive hybrid polymer. As a result, an output voltage, the output current and the output power of the piezoelectric/conductive hybrid polymer are increased.

Abstract: A method for fabricating microfluidic structures is provided. The method includes: a belt is provided and an adhesion layer is formed on at least one surface of the belt; the belt is cut for forming a first microfluidic channel thereon, wherein the first microfluidic channel has an accommodating space; a second microfluidic channel is provided, wherein a line-width of the second microfluidic channel is smaller than a line-width of the first microfluidic channel; the second microfluidic channel is disposed in the accommodating space of the first microfluidic channel; and a substrate is adhered to the belt via the adhesion layer.

Abstract: A method for determining a threshold voltage for a batch of sensing chips includes steps of: a) selecting at least three of micro-machined transceivers; b) conducting for each of the at least three of the micro-machined transceivers the following sub-steps of: b1) introducing a blank liquid into a micro-channel via an inlet port, b2) applying an alternate voltage to a micro-machined transmitter for a period of time, and b3) measuring an amplitude of an electric signal from a micro-machined receiver to obtain a maximum value and a minimum value; c) measuring a mid-value; and d) determining the threshold voltage. Also disclosed is a method for increasing sensitivity of the batch of sensing chips based on the threshold voltage.

Abstract: A method for fabricating microfluidic structures is provided. The method includes: a belt is provided and an adhesion layer is formed on at least one surface of the belt; the belt is cut for forming a first microfluidic channel thereon, wherein the first microfluidic channel has an accommodating space; a second microfluidic channel is provided, wherein a line-width of the second microfluidic channel is smaller than a line-width of the first microfluidic channel; the second microfluidic channel is disposed in the accommodating space of the first microfluidic channel; and a substrate is adhered to the belt via the adhesion layer.

Abstract: A method for promoting an electric output of a piezoelectric/conductive hybrid polymer is provided. The method includes forming a piezoelectric/conductive hybrid polymer by mixing poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) so as to increase an output current and an output power of the piezoelectric/conductive hybrid polymer; and changing a surface structure of the piezoelectric/conductive hybrid polymer by a nano-imprint process for promoting a piezoelectricity of the piezoelectric/conductive hybrid polymer. As a result, an output voltage, the output current and the output power of the piezoelectric/conductive hybrid polymer are increased.

Abstract: A microfluidic device includes a substrate, a microchannel, and a porous filter. The microchannel is formed in the substrate and has a first open end and a second open end distal from the first open end. The porous filter is disposed proximally to the first open end and has a plurality of polymeric microparticles clumping together and partially melt-bonded to each other to form a cluster. A method of making the microfluidic device is also provided.

Abstract: A microfluidic device includes a substrate, first and second capillary inlets, a microfluidic channel unit, an outlet disposed downstream of the microfluidic channel unit, and a suction member disposed downstream of the outlet. A first liquid is drawn into a first sub-channel and a main channel of the microfluidic channel unit through the first capillary inlet. A second liquid is drawn into a second sub-channel of the microfluidic channel unit through the second capillary inlet. The suction member provides a predetermined suction force to permit the second liquid to penetrate into the first liquid and to break up into droplets in the first liquid, thereby generating monodisperse emulsions.

Abstract: A method of fabricating a piezoelectric/conductive hybrid polymer thin film is provided, which is promoting an electric output of a piezoelectric polymer and includes: a mixing step including: forming a piezoelectric solution by dissolving a PVDF-TrFE in an active solvent; forming a conductive solution by dissolving a PEDOT:PSS in a water; and forming a piezoelectric/conductive hybrid polymer solution by mixing the piezoelectric solution and the conductive solution; a filming step, wherein the piezoelectric/conductive hybrid polymer solution is heated, thus the piezoelectric/conductive hybrid polymer thin film is formed; and an anneal step, wherein the piezoelectric/conductive hybrid polymer thin film is recrystallized and a nano-sized protruding structure is formed on a surface of the piezoelectric/conductive hybrid polymer thin film.

Abstract: A molybdenum disulfide sensor includes a flexible substrate, a patterned circuit layer and at least a molybdenum disulfide sheet. The flexible substrate has a gas flow channel. The patterned circuit layer is formed on the flexible substrate, and the patterned circuit layer includes a first electrode and a second electrode. The second electrode is faced toward the first electrode, and a gap is formed between the first electrode and the second electrode. The molybdenum disulfide sheet is located in the gap and is connected with the first electrode and the second electrode.

Abstract: A method for determining a threshold voltage for a batch of sensing chips includes steps of: a) selecting at least three of micro-machined transceivers; b) conducting for each of the at least three of the micro-machined transceivers the following sub-steps of: b1) introducing a blank liquid into a micro-channel via an inlet port, b2) applying an alternate voltage to a micro-machined transmitter for a period of time, and b3) measuring an amplitude of an electric signal from a micro-machined receiver to obtain a maximum value and a minimum value; c) measuring a mid-value; and d) determining the threshold voltage. Also disclosed is a method for increasing sensitivity of the batch of sensing chips based on the threshold voltage.

Abstract: The present invention proposes an electrode thin film and a method for manufacturing the electrode thin film. The method includes: determining a height between a first roller and a substrate and a coating speed for the first roller coating a first metal nanowire suspension liquid onto the substrate based on a suspension property of the first metal nanowire suspension liquid; coating, by using the first roller, the first metal nanowire suspension liquid onto the substrate with the coating speed to form a wetting film on the substrate; and controlling a first temperature of the substrate heating the wetting film based on the suspension property of the first metal nanowire suspension liquid to dry the wetting film as the electrode thin film. The first temperature makes a dewetting speed of the wetting film higher than a drying speed of the wetting film.

Abstract: A method of making a breath sensing tube includes: (A) dispersing a nanowire material in a solution in a dielectriphoretic bath, such that the nanowire material is formed into individual nanowires and nanowire aggregates; (B) adsorbing the nanowire aggregates on a bath electrode through dielectrophoresis so as to obtain a nanowire-containing solution containing the individual nanowires; contacting sensor electrodes of a substrate with the nanowire-containing solution; and subjecting the nanowire-containing solution to dielectrophoresis, so that one of the individual nanowires is adsorbed to the sensor electrodes to interconnect the sensor electrodes.

Abstract: A method for fabricating microfluidic structures is provided. The method includes: a belt is provided and an adhesion layer is formed on at least one surface of the belt; the belt is cut for forming a first microfluidic channel thereon wherein the first microfluidic channel has an accommodating space; a second microfluidic channel is provided, wherein a line-width of the second microfluidic channel is smaller than a line-width of the first microfluidic channel; the second microfluidic channel is disposed in the accommodating space of the first microfluidic channel; and a substrate is adhered to the belt via the adhesion layer.

Abstract: A molybdenum disulfide sensor includes a flexible substrate, a patterned circuit layer and at least a molybdenum disulfide sheet. The flexible substrate has a gas flow channel. The patterned circuit layer is formed on the flexible substrate, and the patterned circuit layer includes a first electrode and a second electrode. The second electrode is faced toward the first electrode, and a gap is formed between the first electrode and the second electrode. The molybdenum disulfide sheet is located in the gap and is connected with the first electrode and the second electrode.

Abstract: A method for fabricating microfluidic structures is provided. The method includes: a belt is provided and an adhesion layer is formed on at least one surface of the belt; the belt is cut for forming a first microfluidic channel thereon, wherein the first microfluidic channel has an accommodating space; a second microfluidic channel is provided, wherein a line-width of the second microfluidic channel is smaller than a line-width of the first microfluidic channel; the second microfluidic channel is disposed in the accommodating space of the first microfluidic channel; and a substrate is adhered to the belt via the adhesion layer.