A low weight portable air sampling device comprising a housing at least partially enclosing an inlet for receiving an air or breath sample; a removable liner coupled to the inlet containing sorbing materials; a micro-pump for regulating air flow within the device; and an outlet for emitting the air or breath sample from the device is described. The device may be used to collect Volatile Organic Compounds (VOCs) of both biotic and abiotic origin.

A gas-detectable mobile power device is disclosed and includes a main body, a gas detection module, a driving and controlling board, a power module and a microprocessor. The main body includes a ventilation opening, a connection port and an accommodation chamber. The ventilation opening is in communication with the accommodation chamber. The gas detection module and the driving and controlling board are disposed within the accommodation chamber. The gas detection module, the power module and the microprocessor are fixed on and electrically connected to the driving and controlling board. The power module is capable of storing an electric energy and outputting the electric energy outwardly. The microprocessor enables the gas detection module to detect and operate. The microprocessor converts the detection information of the gas detection module into a detection data, which is stored and transmitted to the mobile device or an external device.

A gas detecting module is disclosed. A gas-inlet concave and a gas-outlet concave are formed on a sidewall of a base. A gas-inlet-groove region and a gas-outlet-groove region are formed on a surface of the base. The gas-inlet concave is in communication with a gas-inlet groove of the gas-inlet-groove region, and the gas-outlet concave is in communication a gas-outlet groove of the gas-outlet-groove region. The gas-inlet-groove region and the gas-outlet-groove region are covered by a thin film to achieve the effectiveness of laterally inhaling and discharging out gas relative to the gas detecting module.

A process for manufacturing an optical system includes forming a first hydrophobic surface at a semiconductor substrate, providing a first drop of transparent material having a first shape on the first hydrophobic surface, and allowing the first drop to harden to form a first optical element having the first shape. The optical system may be a particle detector, and the process may optionally further include forming a light source at the semiconductor substrate configured to generate a light beam that passes through the first optical element and a cavity to a photodetector.

The present invention is related to the field of bio/chemical sensing, assays and applications. Particularly, the present invention is related to collecting a small amount of a vapor condensate sample (e.g. the exhaled breath condensate (EBC) from a subject of a volume as small as 10 fL (femto-Liter) in a single drop), preventing or significantly reducing an evaporation of the collected vapor condensate sample, analyzing the sample, analyzing the sample by mobile-phone, and performing such collection and analysis by a person without any professionals.

The invention relates to a filtration assembly (5) comprising an annular support (12) which comprises an annular step (13) having an apex on which a filter membrane (11) rests, and a cover (20) covering the annular support in order to hold a periphery of the membrane between the cover and the annular support. The cover comprises a ring (21) which fits around the step to trap the periphery of the membrane between the ring and the annular support, the ring being extended by a skirt (22) which extends as a projection from the ring to cover an external peripheral wall of the annular support and to exhibit an end face (23) which extends in continuity with a bearing face (24) of the annular support. The invention also relates to a removable cassette for an apparatus for sampling nanoparticles comprising such a filtration assembly.

A personal electrostatic bioaerosol sampler (PEBS) for collecting bioaerosols (from virus to pollen) at high sampling flow rates and for measuring personal exposures to bioaerosols in various occupational environments, particularly at their low concentrations and for extended periods of time, and a method of using same, are disclosed. The PEBS includes a base holder, a charging section, and a collection section. Charging section includes a first member inside a center of charging section configured to be connected to positive or negative high voltage and a second member disposed therearound a midpoint of first member inside charging section configured to be grounded such that a plurality of ions are produced for charging a plurality of incoming particles. A collection plate is releasably secured inside collection section such that when collection section is grounded and negative or positive high voltage is connected to collection plate, a plurality of charged incoming particles are deposited onto collection plate by an electrostatic field. A middle section of base holder is configured to partly receive charging section and collection section via an opening therethrough such that charging section is secured to a first side of base holder and collection section is secured to a second side of base holder when sampler is in an assembled configuration.

A portable device for monitoring environmental air quality includes a main body and at least one actuating and sensing module. The actuating and sensing module is disposed in the main body. The actuating and sensing module includes a carrier, at least one sensor, at least one actuating device, a driving and transmitting controller and a battery. The sensor, the actuating device, the driving and transmitting controller and the battery are disposed on the carrier. The actuating device is enabled to transport fluid to flow toward the sensor so as to make the fluid measured by the sensor and transmit an output data of the monitored data to a connection device. The information carried in the output data may be displayed, stored and transmitted by the connection device, whereby users can take precautions against the air pollution immediately to prevent from the ill influence on human health.

A gas detecting module includes a carrying plate, a sensor, a compartment body and an actuator. The carrying plate has a substrate and a gas opening. The compartment body is divided into a first compartment and a second compartment by a partition plate. The first compartment has an opening. The second compartment has an outlet and accommodates the actuator. The bottom of the compartment body has an accommodation recess receiving the carrying plate, whereby the gas opening is aligned with the outlet, and the sensor packaged on the substrate is disposed within the first compartment through the opening. The partition plate has a notch. The gas detecting module is assembled in a slim-type portable device having a casing. The casing has an inlet aligned with the first compartment. As the actuator is actuated, ambient gas is inhaled into the first compartment, and the sensor detects the gas flowing therethrough.

An actuating and sensing module includes a first substrate, a second substrate, an actuating device and a sensor. The first and second substrates are stacked on each other as a gas flow channel is formed therebetween. The gas inlet, the gas flow channel and the gas outlet are in communication with each other to define a gas flow path. The actuating device is disposed in the gas outlet of the second substrate and electrically connected to a control circuit to obtain driving power. The sensor is disposed in the gas flow path and misaligned with the gas inlet. The sensor is spaced apart from the actuating device and is electrically connected to the control circuit. Being driven by the actuating device, the gas is transported from the outside into the gas flow path and monitored by the sensor.