This paper proposes a microbe culture technology in an open environment using hydrogel microtubes. Oil production microbes, such as Aurantiochytrium, have been discovered and are currently studied to produce fuels instead of fossil fuels. Scale-up of the culture systems of such microbes is critical for practical applications. The microbe culture in a nutrition-rich open environment, such as lak...

We propose a three-dimensional ~3-D! tube model consisting of a sequence of connected two-gate blobs for an ion channel and a microtube of a molecular motor. Due to the competition effect between two gates ~or sinks! on the same blob surface, the escape pathway for the Brownian particle inside a blob is selected by these two gates owing to gate modulation. Furthermore, there exists a nonzero ne...

We describe a new boundary-integral representation for biphasic mixture theory, which allows us to efficiently solve certain elastohydrodynamic-mobility problems using boundary element methods. We apply this formulation to model the motion of a rigid particle through a microtube which has non-uniform wall shape, is filled with a viscous Newtonian fluid, and is lined with a thin poroelastic laye...

One of the major problems in strawberry production is difficulty in diagnosis of anthracnose caused by Colletotrichum acutatum or Glomerella cingulata in latent infection stage. We here developed a diagnostic tool for the latent infection consisting of initial culturing of fungi, DNA extraction, synthesis of PCR-amplified probes and microtube hybridization (MTH) using a macroarray. The initial ...

We report on the use of a radial acoustic resonator to increase signal quartz enhanced photoacoustic spectroscopy (QEPAS) sensor. This approach is an attractive alternative usual configurations based microtube longitudinal resonators since it enables substantially relax laser beam alignment and positioning thus paves way towards more cost-effective industrial production. new QEPAS configuration...

We report on theoretical and experimental investigation of azimuthal and longitudinal modes in rolled-up microtubes at telecom wavelengths. These microtubes are fabricated by selectively releasing a coherently strained InGaAs/GaAs bilayer. We apply planar waveguide method and a quasi-potential model to analyze the azimuthal and longitudinal modes in the microtubes near 1550 nm. Then we demonstr...

Clinicians frequently encounter endodontically treated teeth that contain silver points within their roots. If endodontic treatment is failing, the need arises to remove this metallic obstruction to facilitate successful nonsurgical retreatment. For the retrieval of these obstructions, most of the methods suggest creating and enlarging a space around the obstruction to loosen it before its retr...

Fabrication techniques have been developed to produce a perforated polymer microtube as a drug delivery device. The technique consists of first forming a silicon platform with trenches and alignment marks to hold the tubes for subsequent processing. Photolithography and reactive ion etching with an inductively coupled plasma source were used to fabricate micro holes on the surface of polyimide ...

Compact recuperative heat exchangers are critical components in supercritical carbon dioxide (sCO2) waste to power conversion systems. To investigate their thermohydraulic performance, a model based on the segmental design and ?-NTU method has been developed. Four different types of exchanger have considered: printed circuit with straight channels (PCHE-SC); zigzag (PCHE-ZC); microtube (MTHE); ...