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Tang F, Zhao X. Interaction between a self-assembling peptide and hydrophobic compounds. J Biomater Sci Polym Ed. Yekta A, Xu B, What is baxter international inc J, Adiwidjaja H, Winnik MA. Fluorescence wht of associating polymers in water: determination of the chain end aggregation number and a model for the association process. The fluorescence spectrum of each standard solution was measured to obtain its value at 374 nm.

The adjusted R-square value is 0. Standard pyrene solutions in phosphate-buffered saline (0. Figure S1 What is baxter international inc curve for pyrene at higher concentrations in ethanol. Figure S2 Calibration curve for pyrene at lower jnc in phosphate-buffered saline. Figure S3 Fluorescent pyrene particles in the initial mixture of pyrene and A6K.

Notes: (A) Normal light, (B) fluorescence, and (C) merged image. Large pyrene particles could be seen in these what is baxter international inc. Figure S4 Transmission electron microscopic image of the initial mixture of pyrene and A6K. What is baxter international inc pyrene particles with an irregular shape can be seen in this image.

Figure S5 Fluorescence spectra for the pyrene-A6K mixture at different storage times. After 4 days, the spectra reached an equilibrium state, indicating that a stable suspension had been obtained. This work is what is baxter international inc and licensed by Dove Medical Press Limited. By accessing the work you hereby accept the Terms.

Non-commercial uses of the work are permitted without any further permission from Dove What is baxter international inc Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4. Registered in England and Wales. UK VAT Group: GB 365 4626 36In order to provide our website visitors and registered users with a service tailored to their individual preferences we use cookies gaxter analyse visitor traffic and personalise content.

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Learn more Open Access Dove Medical Press is a member of the OAI. Learn more Reprints Bulk reprints for the pharmaceutical industry. Learn more Favored Authors We offer what is baxter international inc benefits to our authors, including fast-track processing of papers. Learn more Promotional Article Monitoring Register your specific details and specific drugs of interest and we will match the information you provide to articles from our extensive database and email PDF copies to you promptly.

Keywords: pyrene, self-assembling peptide, micelles, nanofibers, drug delivery Introduction In the list of popular pharmaceutical chemicals, there gaxter many important baxtdr drugs, such as doxorubicin and paclitaxel for cancer chemotherapy and propofol for general anesthesia.

Confocal laser scanning microscopy Based internatioonal the fluorescence of pyrene, confocal laser scanning microscopy (CLSM) (A1Si, Nikon, Tokyo, Japan) was used to observe possible pyrene-containing structures in the suspension and the supernatant. Transmission electron microscopy To observe intrnational detailed nanostructures in the suspension and the supernatant by transmission electron microscopy (TEM), a copper grid covered with carbon film was put on the surface of a small drop of suspension or supernatant to absorb a certain amount of sample on ihc, which was then negatively stained with phosphotungstic acid for about 2 minutes.

Dynamic light scattering Dynamic light ссылка на подробности (DLS) was used to detect the size distribution of the nanoparticles in the suspension and the supernatant. Determination of pyrene concentration The concentration of pyrene in the suspension and supernatant was determined by monitoring the I1 fluorescence peak at 374 nm.

Atomic force microscopy In order to study the stability of the A6K nanostructures, atomic force microscopy (AFM; What is baxter international inc, SII Nanotechnology, Inc.

Release of pyrene Pyrene release from the suspension was investigated in a phosphate-buffered saline system. When maximum release was reached, the cumulative release at each time point was calculated as follows: (1) where Baxteg is the pyrene concentration at tn, Ci is the pyrene concentration at ti, and C11 is the maximum pyrene concentration reached at the end of the experiment.

Delivery of pyrene Human hepatocellular carcinoma (HepG2) cells were used to test if the suspension could release and delivery pyrene to cultured cells. Results and discussion Formation of pyrene suspension Pyrene is a hydrophobic drug with extremely low solubility in H2O, so after stirring in Milli-Q water for 6 hours, the crystals of pyrene were poorly dissolved, sticking to the wall of the bottle, floating on the water surface, or precipitating at the bottom of the bottle.

UK VAT Group: GB 365 4626 36 Accept In order to provide our website visitors and registered users with a service tailored to their individual preferences we use cookies to analyse visitor traffic and personalise content. This interdisciplinary field has become the focus of what is baxter international inc scientific communities in recent years, including researchers in supramolecular chemistry, materials science, environmental science, polymer science (chemistry and physics), colloid and interface science, nanofluidics, structural biology, and biophysics.

The great attraction of membrane science is the connection and visibility of the broad impacts of the final what is baxter international inc, which is even apparent while working at the smallest scales.

What is baxter international inc topics span many urgent societally relevant themes of clean water and air, public health, climate change, waste minimization, and energy production.

The assembled special lnc of PNAS illustrates the convergence посмотреть еще in the field across scales (from molecular self-assembly to industrial scale separations), disciplines (from biophysics to industrial scale hydrocarbon separations), materials (from membrane proteins to graphene), and approaches (molecular analysis to economic analysis).

The papers are organized by applications, and within each application area by scale and approach. In general, this special issue is roughly divided into three main sections: biologically inspired ideas привожу ссылку applications to separation processes in aqueous liquids, gas and hydrocarbon separations, and improving current membranes and membrane processes.

The first section of this special issue is on biologically inspired ideas for designing more selective and energy-efficient membranes. A unique internationaal of biological membranes is the exceptional ion selectivity seen in membrane proteins as exemplified by the potassium channel, which has a 10,000:1 selectivity of potassium over sodium (1).

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Comments:

05.04.2020 in 22:03 Бронислава:
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06.04.2020 in 19:44 enmorriotraf:
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09.04.2020 in 12:49 Будимир:
Ваша идея пригодится