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Items 1 to 10 of about 1190
3. Mallakpour S, Darvishzadeh M: Nanocomposite materials based on poly(vinyl chloride) and bovine serum albumin modified ZnO through ultrasonic irradiation as a green technique: Optical, thermal, mechanical and morphological properties. Ultrason Sonochem; 2018 Mar;41:85-99
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Nanocomposite materials based on poly(vinyl chloride) and bovine serum albumin modified ZnO through ultrasonic irradiation as a green technique: Optical, thermal, mechanical and morphological properties.
  • In this project, physicochemical properties of poly(vinyl chloride) (PVC) reinforced by ZnO nanoparticles (NPs) were studied.
  • Firstly, ZnO NPs were modified with bovine serum albumin (BSA) as an organo-modifier and biocompatible substance through ultrasound irradiation as environmental friendly, low cost and rapid means.
  • Nanocomposite (NC) films were prepared by loadings of various ratios of ZnO/BSA NPs (3, 6 and 9wt%) inside the PVC.
  • Structural morphology and physical properties of the ZnO-BSA NPs and NC films were investigated via Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis (TGA), transmission electron microscopy and field emission scanning electron microscopy.
  • According to the obtained information from the TGA, an increase in the thermal stability can be clearly observed.
  • Also the results of contact angle analysis indicated with increasing percent of ZnO/BSA NPs into PVC the hydrophilic behaviors of NCs were increased.

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  • [Copyright] Copyright © 2017 Elsevier B.V. All rights reserved.
  • (PMID = 29137802.001).
  • [ISSN] 1873-2828
  • [Journal-full-title] Ultrasonics sonochemistry
  • [ISO-abbreviation] Ultrason Sonochem
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Netherlands
  • [Keywords] NOTNLM ; Bovine serum albumin / Nanocomposites / Poly(vinyl chloride) / Ultrasound irradiations / ZnO nanoparticle
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4. Gnana Sundara Raj B, Bhuvaneshwari S, Wu JJ, Asiri AM, Anandan S: Sonochemical synthesis of Co<sub>2</sub>SnO<sub>4</sub> nanocubes for supercapacitor applications. Ultrason Sonochem; 2018 Mar;41:435-440
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Sonochemical synthesis of Co<sub>2</sub>SnO<sub>4</sub> nanocubes for supercapacitor applications.
  • In this work, a simple sonochemical route was followed to synthesize cobalt stannate (Co<sub>2</sub>SnO<sub>4</sub>) nanocubes using stannous and cobalt chlorides as the precursors in alkaline medium at room temperature.
  • The structure, composition and surface morphology of synthesized Co<sub>2</sub>SnO<sub>4</sub> nanocubes have been characterized by using X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FT-IR), Field emission scanning electron microscopy (FE-SEM) and high-resolution transmission electron microscopy (HR-TEM) indicates that the Co<sub>2</sub>SnO<sub>4</sub> nanocubes are crystalline, single-phase without any impurity phase; the sizes of nanocubes are ∼100 nm.
  • The cyclic voltammetry, galvanostatic charge-discharge cycling test, and electrochemical impedance spectroscopy (EIS) measurements are carried out for the Co<sub>2</sub>SnO<sub>4</sub> nanocubes shows a specific capacitance 237 F g<sup>-1</sup> at 0.5 mA cm<sup>-2</sup> current density and in 1 M Na<sub>2</sub>SO<sub>4</sub> electrolyte.
  • Co<sub>2</sub>SnO<sub>4</sub> nanocubes exhibit long cycling life with 80% retention of initial capacitance after 2000 cycles and the excellent rate capability at 15 mA cm<sup>-2</sup> as much as 70% of that at 0.5 mA cm<sup>-2</sup> suggest its potential use for supercapacitor applications.

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  • [Copyright] Copyright © 2017 Elsevier B.V. All rights reserved.
  • (PMID = 29137772.001).
  • [ISSN] 1873-2828
  • [Journal-full-title] Ultrasonics sonochemistry
  • [ISO-abbreviation] Ultrason Sonochem
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Netherlands
  • [Keywords] NOTNLM ; Co(2)SnO(4) nanocubes / Energy storage / Galvanostatic charge-discharge cycling test / Ragone plot / Supercapacitors
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5. Nazari B, Mohammadifar MA, Shojaee-Aliabadi S, Feizollahi E, Mirmoghtadaie L: Effect of ultrasound treatments on functional properties and structure of millet protein concentrate. Ultrason Sonochem; 2018 Mar;41:382-388
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Effect of ultrasound treatments on functional properties and structure of millet protein concentrate.
  • In this study, the effect of high power ultrasound (US) probe in varying intensities and times (18.4, 29.58, and 73.95 W/cm<sup>2</sup> for 5, 12.5 and 20 min respectively) on functional properties of millet protein concentrate (MPC) was investigated, and also the structural properties of best modified treatment were evaluated by FTIR, DSC, Zeta potential and SDS-PAGE techniques.
  • The results showed the solubility in all US treated MPC was significantly (p < .05) higher than those of the native MPC.
  • Foaming capacity of native MPC (271.03 ± 4.51 ml) was reduced after US treatments at low intensities (82.37 ± 5.51 ml), but increased upon US treatments at high intensities (749.7 ± 2 ml).
  • In addition, EAI and ES increased after US treatments.
  • One of the best US treatments that can improve the functional properties of MPC was 73.95 W/cm<sup>2</sup> for 12.5 min that resulted in reduction of molecular weight and increase nearly 36% in the negative surface charge that was confirmed by SDS-page and Zeta potential results, respectively.

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  • [Copyright] Copyright © 2017 Elsevier B.V. All rights reserved.
  • (PMID = 29137765.001).
  • [ISSN] 1873-2828
  • [Journal-full-title] Ultrasonics sonochemistry
  • [ISO-abbreviation] Ultrason Sonochem
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Netherlands
  • [Keywords] NOTNLM ; Functional properties / High power ultrasound / Millet protein concentrate / Modification / Structural properties
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6. Liu C, Cao Z, He S, Sun Z, Chen W: The effects and mechanism of phycocyanin removal from water by high-frequency ultrasound treatment. Ultrason Sonochem; 2018 Mar;41:303-309
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] The effects and mechanism of phycocyanin removal from water by high-frequency ultrasound treatment.
  • The effects and mechanism of phycocyanin removal from water by high-frequency ultrasound treatment were studied.
  • The efficiency of sonication treatment in removing proteins derived from algal cells was investigated, and the factors influencing the process, including the effects of coagulation, were also studied.
  • In addition, sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), the three-dimensional fluorescence spectrum, and mass spectrum were used to illustrate the removal mechanism.
  • The results indicated that phycocyanin can be degraded to the point where it is barely detectable in water samples after 180min of high-frequency sonication.
  • While the total nitrogen (TN) concentration remained consistent during the entire sonication process (240min), about 78.9% of the dissolved organic nitrogen (DON) was oxidized into inorganic nitrogen.
  • The sonication effect was greatly influenced by the ultrasound frequency, with 200kHz having the highest removal performance due to the large production of hydroxyl (HO) radicals.
  • Coagulation was adversely influenced by sonication in the first 60min due to the cross-linking reaction between protein molecules caused by the sonication.
  • The influence of sonication weakened with sonication time due to the further degradation of the proteins by ultrasound.
  • The variation of the TN, DON, and inorganic nitrogen indicated that the main mechanism occurring during the high-frequency sonication of the phycocyanin was the direct oxidation of the radicals, which was totally different from of the mechanism occurring during ultrasound with low frequency.

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  • [Copyright] Copyright © 2017 Elsevier B.V. All rights reserved.
  • (PMID = 29137756.001).
  • [ISSN] 1873-2828
  • [Journal-full-title] Ultrasonics sonochemistry
  • [ISO-abbreviation] Ultrason Sonochem
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Netherlands
  • [Keywords] NOTNLM ; Drinking water / High-frequency / Phycocyanin / Protein / Ultrasound
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7. Maura D, Bandyopadhaya A, Rahme LG: Animal Models for Pseudomonas aeruginosa Quorum Sensing Studies. Methods Mol Biol; 2018;1673:227-241
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Animal Models for Pseudomonas aeruginosa Quorum Sensing Studies.
  • Quorum sensing (QS) systems play global regulatory roles in bacterial virulence.
  • They synchronize the expression of multiple virulence factors and they control and modulate bacterial antibiotic tolerance systems and host defense mechanisms.
  • Therefore, it is important to obtain knowledge about QS modes of action and to test putative therapeutics that may interrupt QS actions in the context of infections.
  • This chapter describes methods to study bacterial pathogenesis in murine acute and persistent/relapsing infection models, using the Gram-negative bacterial pathogen Pseudomonas aeruginosa as an example.
  • These infection models can be used to probe bacterial virulence functions and in mechanistic studies, as well as for the assessment of the therapeutic potential of antibacterials, including anti-virulence agents.

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  • (PMID = 29130177.001).
  • [ISSN] 1940-6029
  • [Journal-full-title] Methods in molecular biology (Clifton, N.J.)
  • [ISO-abbreviation] Methods Mol. Biol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Keywords] NOTNLM ; Abdominal burn infection / Antibiotic tolerance / Back burn infection / Lung infection / Open wound infection / Persistence / Pseudomonas aeruginosa
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8. Li B, Takahashi D, Kawamura Y, Uemura M: Plasma Membrane Proteomics of Arabidopsis Suspension-Cultured Cells Associated with Growth Phase Using Nano-LC-MS/MS. Methods Mol Biol; 2018;1696:185-194
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Plasma Membrane Proteomics of Arabidopsis Suspension-Cultured Cells Associated with Growth Phase Using Nano-LC-MS/MS.
  • Arabidopsis thaliana suspension-cultured cells (T87 line) are important model system for studies of responses to biotic and abiotic stresses at the cellular level in vitro since the cells have certain advantages compared with the whole plant system.
  • However, the physiological and morphological characteristics of the cells are influenced by the progress of the growth phase of cells, which may result in different stress tolerance.
  • To obtain comprehensive proteome profiles of the plasma membrane of Arabidopsis thaliana T87 suspension-cultured cells at the lag, log, or stationary growth phase, a shotgun proteomics method using nano-LC-MS/MS is used.
  • The results obtained indicate that proteome profiles of the plasma membrane with the progress of the growth phase of cells dynamically changed, which may be associated with the physiological and morphological characteristics of the plasma membrane of the suspension-cultured cells.
  • The proteomics results are further applied to explain different responsive patterns in the plasma membrane to cold acclimation and ABA treatment, which lead to understanding of different freezing tolerance associated with the growth phase of the cells.

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  • (PMID = 29086404.001).
  • [ISSN] 1940-6029
  • [Journal-full-title] Methods in molecular biology (Clifton, N.J.)
  • [ISO-abbreviation] Methods Mol. Biol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Keywords] NOTNLM ; Culture cells / Growth phase / Nano-LC-MS/MS / Plasma membrane / Proteomics
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9. Saragadam T, Punekar NS: Novel Route for Agmatine Catabolism in Aspergillus niger: 4-Guanidinobutyrase Assay. Methods Mol Biol; 2018;1694:163-172
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Novel Route for Agmatine Catabolism in Aspergillus niger: 4-Guanidinobutyrase Assay.
  • The enzyme 4-guanidinobutyrase (GBase) catalyzes the hydrolysis of 4-guanidinobutyric acid (GB) to 4-aminobutyric acid (GABA) and urea.
  • Here we describe methods to estimate urea and GABA that were suitably adapted from the published literature.
  • The urea is determined by colorimetric assay using modified Archibald's method.
  • However, the low sensitivity of this method often renders it impractical to perform fine kinetic analysis.
  • To overcome this limitation, a high sensitive method for detecting GABA is exploited that can even detect 1 μM of GABA in the assay mixture.
  • The samples are deproteinized by perchloric acid (PCA) and potassium hydroxide treatment prior to HPLC analysis of GABA.
  • The method involves a pre-column derivatization with o-phthalaldehyde (OPA) in combination with the thiol 3-mercaptopropionic acid (MPA).
  • The fluorescent GABA derivative is then detected after reversed phase high performance liquid chromatography (RP-HPLC) using isocratic elution.
  • The protocols described here are broadly applicable to other biological samples involving urea and GABA as metabolites.

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  • (PMID = 29080167.001).
  • [ISSN] 1940-6029
  • [Journal-full-title] Methods in molecular biology (Clifton, N.J.)
  • [ISO-abbreviation] Methods Mol. Biol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Keywords] NOTNLM ; 3-Mercaptopropionic acid / 4-Guanidinobutyrase / 4-Guanidinobutyric acid / Agmatine / GABA / Isocratic / Reversed phase HPLC / Urea / o-Phthalaldehyde
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10. Savino W, Pinto-Mariz F, Mouly V: Flow Cytometry-Defined CD49d Expression in Circulating T-Lymphocytes Is a Biomarker for Disease Progression in Duchenne Muscular Dystrophy. Methods Mol Biol; 2018;1687:219-227
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Flow Cytometry-Defined CD49d Expression in Circulating T-Lymphocytes Is a Biomarker for Disease Progression in Duchenne Muscular Dystrophy.
  • Duchenne muscular dystrophy (DMD) affects 1:3500-1:5000 male births, and is caused by X-linked mutations in the dystrophin gene, manifested by progressive muscle weakness and wasting due to the absence of dystrophin protein, leading to degeneration of skeletal muscle.
  • DMD patients are clinically heterogeneous and the functional phenotype often cannot be correlated with the genotype.
  • Therefore, defined reliable noninvasive biomarkers aiming at predicting if a given DMD child will progress more or less rapidly will be instrumental to better design inclusion of defined patients for future therapeutic assays.
  • We recently showed that CD49d expression levels in blood-derived T-cell subsets can predict disease progression in DMD patients.
  • Herein we describe in detail the methodology to be applied for defining, through four-color flow cytometry, the membrane expression levels of the CD49d (the α4 chain of the integrins α4β1 and α4β7) in circulating CD4<sup>+</sup> and CD8<sup>+</sup> T cell subsets.
  • Since we have also shown that this molecule can also be placed as a potential target for therapeutics in DMD, we also describe the cell migration functional assay that can be applied to test potential CD49d inhibitors that can modulate their ability to cross endothelial or extracellular matrix (ECM) barriers.

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  • (PMID = 29067667.001).
  • [ISSN] 1940-6029
  • [Journal-full-title] Methods in molecular biology (Clifton, N.J.)
  • [ISO-abbreviation] Methods Mol. Biol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Keywords] NOTNLM ; Biomarker / Flow cytometry / Immunotherapy / Inflammation / Integrins / Muscular dystrophy / T lymphocytes / VLA-4
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