The rational design of metal-organic frameworks (MOFs) with hollow features and tunable porosity at the nanoscale can enhance their intrinsic properties and stimulates increasing attentions. In this Communication, we demonstrate that methanol can affect the coordination mode of ZIF-67 in the presence of Co(2+) and induces a mild phase transformation under solvothermal conditions. By applying th...

Removal of endocrine disrupting compound (viz., bisphenol A, BPA) by laboratoryfabricated hollow fiber polyethersulfone (PES) nanofiltration (NF) membranes have been investigated. The tailor made charged PES hollow fiber NF membranes have been developed by blending negatively charged surface modifying macromolecule (cSMM). It is resulted more than 90% removal of BPA, mainly due to negatively ch...

The hollow CuO@SiO2 spheres with a mean diameter of 240 nm and a thin shell layer of about 30 nm in thickness was synthesized using an inorganic SiO2 shell coating on the surface of Cu@C composite that was prepared by a two-step hydrothermal method. The obtained hollow CuO@SiO2 spheres were characterized by ICP-AES, nitrogen adsorption-desorption, SEM, TEM, XRD, H2-TPR, CO-TPR, CO-TPD and NO-TP...

Protein separation through hollow fiber flow field-flow fractionation (HF FlFFF) at microflow rate regime was successfully achieved by employing a microbore hollow fiber. In most of the flow field-flow fractionation (FlFFF) techniques applied to the separation of proteins, including hollow fiber FlFFF (HF FlFFF), an outflow rate leading to a detector has typically been a few tenths of a millili...

PURPOSE Hollow fiber assays offer an early in vivo method of anticancer drug screening. The assays have been optimized for human cancers originating from the lung, breast, colon, ovary, and brain, but not from the stomach and liver. The current study focused on optimization of hollow fiber assays for gastric and hepatocellular carcinoma cell lines. MATERIALS AND METHODS Gastric (SNU-16, SNU-4...

BACKGROUND Hollow earmolds have become a popular type of earmold used in thin-tube, microsize hearing aid fittings. It is desirable for clinicians to be familiar with their characteristics and limitations. PURPOSE This investigation compared the effects of vent diameter between a traditional solid earmold and a hollow earmold that is used in modern thin-tube hearing aid fittings. RESEARCH D...

Microdischarge ~MD! devices are plasma sources typically operating at 100s Torr to atmospheric pressure with dimensions of 10s–100s mm. Their design in based on pd (pressure3characteristic dimension! scaling; smaller dimensions are enabled by higher operating pressures with typical devices operating with pd51 – 10 Torr cm. MD devices have exhibited behavior that resemble both Townsend and hollo...

Homogenization technique has been used to derive equivalent material properties of masonry units for many years. However, most of the previous research work concentrated on derivation of equivalent material properties for solid brick masonry structure. Very few studies have been conducted to investigate complex mechanical properties of hollow concrete block masonry unit. In this paper, homogeni...

The single-scattering properties of ice particles in the near- through far-infrared spectral region are computed from a composite method that is based on a combination of the finite-difference time-domain technique, the T-matrix method, an improved geometrical-optics method, and Lorenz-Mie theory. Seven nonspherical ice crystal habits (aggregates, hexagonal solid and hollow columns, hexagonal p...

Smooth muscle cells line the walls of hollow organs and control the organ dimension and mechanical function by generating force and changing length. Although significant progress has been made in our understanding of the molecular mechanism of actomyosin interaction that produces sliding of actin (thin) and myosin (thick) filaments in smooth muscle, the sarcomeric structure akin to that in stri...