نتایج جستجو برای: polydimethyl siloxane

تعداد نتایج: 1203  

Journal: :Friction 2021

Abstract Slippery lubricant-infused surfaces exhibit excellent fog-harvesting capacities compared with superhydrophobic and superhydrophilic surfaces. However, lubricant depletion is typically unavoidable under dynamic conditions, reinfused oil generally needed to recover the capacity. Herein, an effective strategy for delaying of prolong service life fog harvesting proposed. An ultrathin trans...

Journal: :Environmental Monitoring and Contaminants Research 2021

The notable challenges facing non-target environmental monitoring are the improvement of reproducibility extraction rates and selection internal standards for concentration correction. In present study, a rapid comprehensive analytical method, which we had developed in previous greatly reduces need pretreatment. method was applied to actual measurement river water. water samples were divided in...

Journal: :Cellulose 2021

Self-cleaning fabrics can be developed based on introducing two mechanisms of superhydrophobicity and photocatalytic activity to conventional fabrics. However, there are some downsides such as inefficiency superhydrophobic coatings against oily contaminants low effectiveness surface treatments under visible light which have restricted the widespread applications these functional products. This ...

Journal: :Circulation research 1980
J N Lindon R E Collins N P Coe A Jagoda D Brier-Russell E W Merrill E W Salzman

The thromboresistance of 13 potentially blood-compatible polymers was assessed in sheep by determining survival of 51Cr-labeled platelets. Polymer tubing (120-150 cm x 2.0-2.3 mm i.d.) coiled around the neck was incorporated into the circulation through silicone rubber connectors as a carotid artery-external jugular vein shunt. The mean platelet half-life in control animals ("shunt control") wa...

2006
Shou-Shing Hsieh Hung-Chun Lin Chih-Yi Lin

Experiments were performed using a microparticle image velocimetry (MPIV) for 2D velocity distributions of electroosmotically driven flows in a 40-mm-long microchannel with a square cross section of 200×200 μm. Electroosmotic flow (EOF) bulk fluid velocity measurements were made in a range of streamwise electric field strengths from 5 to 25 kV/m. A series of seed particle calibration tests can ...

Journal: :Journal of chromatography. A 2007
Laura Sprunger Amy Proctor William E Acree Michael H Abraham

Water-to-polydimethylsiloxane (PDMS) and gas-to-PDMS sorption coefficients have been compiled for 170 gaseous and organic solutes. Both sets of sorption coefficients were analyzed using the Abraham solvation parameter model. Correlations were obtained for both "dry" headspace solid-phase microextraction and conventional "wet" PDMS coated surfaces. The derived equations correlated the experiment...

2007
Rada Đurović Jelena Milinović Mirjana Marković Dragan Marković

The method of headspace solid phase microextraction (HS/SPME) was successfully used in a simultaneous multicomponent analysis of hexachlorobenzene (HCB), tefluthrin, heptachlor, aldrin, chlorpyrifos, fenthion and bifenthrin in aqueous medium. Measurements were performed using a nonpolar polydimethyl siloxane (PDMS) fiber. Detection and quantification were done by gas chromatography/mass spectro...

Journal: :Lab on a chip 2012
Sung Hee Ko Yong-Ak Song Sung Jae Kim Myungji Kim Jongyoon Han Kwan Hyoung Kang

In this paper, we introduce a simple, straight microchannel design for a nanofluidic protein concentration device. Compared with concentration devices previously developed, the anode channel and cathode channel in this new concentration scheme are both integrated into a straight microchannel, with one inlet and one outlet. Most of the functions of a conventional two-channel concentration device...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید