Showing 1-30 of 91 results for "

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Ceren Kutlu et al.
Journal of microencapsulation, 31(7), 700-707 (2014-06-26)
The chitosan scaffold, which has both of anticancer and antivascularization effects, was developed for using in local therapy of brain tumours. This is why, poly-lactic-co-glycolic acid (50:50) nanoparticles (~200 nm) including an anticancer drug, 5-fluorouracil (5-FU), were prepared by emulsion-solvent...
Dylan S Mackay et al.
The American journal of clinical nutrition, 101(3), 432-439 (2015-03-04)
Benefits of plant sterols (PS) for cholesterol lowering are compromised by large variability in efficacy across individuals. High fractional cholesterol synthesis measured by deuterium incorporation has been associated with nonresponse to PS consumption; however, prospective studies that show this association...
Nina Parmar et al.
Tissue engineering. Part C, Methods, 21(4), 404-412 (2014-09-11)
Muscle degeneration is a prevalent disease, particularly in aging societies where it has a huge impact on quality of life and incurs colossal health costs. Suitable donor sources of smooth muscle cells are limited and minimally invasive therapeutic approaches are...
Qamar Zia et al.
International journal of nanomedicine, 10, 1769-1790 (2015-03-19)
In the present study, we developed a self-assembled biodegradable polyglutamic acid (PGA)-based formulation of amphotericin B (AmB) and evaluated its in vitro antifungal potential against Candida albicans. The AmB-loaded PGA nanoparticles were prepared in-house and had a mean size dimension...
Marcia Shu-Wei Su et al.
Microbiology (Reading, England), 160(Pt 4), 795-806 (2014-02-11)
This study characterized the two-component regulatory systems encoded by bfrKRT and cemAKR, and assessed their influence on biofilm formation by Lactobacillus reuteri 100-23. A method for deletion of multiple genes was employed to disrupt the genetic loci of two-component systems....
Elsa Vennat et al.
Dental materials : official publication of the Academy of Dental Materials, 25(6), 729-735 (2009-01-29)
The objectives of this study were to assess demineralized dentin porosity and quantify the different porous features distribution within the material using mercury intrusion porosimetry (MIP) technique. We compared hexamethyldisilazane (HMDS) drying and lyophilization (LYO) (freeze-drying) in sample preparation. Fifty-six...
S V Buravkov et al.
Bulletin of experimental biology and medicine, 151(3), 378-382 (2012-03-28)
We compared conventional method for specimen (cell cultures, tissue specimens) preparation for scanning electron microscopy and a method without sputtering and critical-point drying. OTO-method (osmium-thiocarbohydrazide-osmium) with sample impregnation with hexamethyldisilazane followed by air drying was used as an alternative method....
Lauren K Woolley et al.
Vaccine, 32(34), 4333-4341 (2014-06-17)
Pig responses to recombinant subunit vaccines containing fragments of eight multifunctional adhesins of the Mycoplasma hyopneumoniae (Mhp) P97/P102 paralog family formulated with Alhydrogel(®) or Montanide™ Gel01 were compared with a commercial bacterin following experimental challenge. Pigs, vaccinated intramuscularly at 9...
Doory Kim et al.
PloS one, 10(4), e0124581-e0124581 (2015-04-16)
Correlative fluorescence light microscopy and electron microscopy allows the imaging of spatial distributions of specific biomolecules in the context of cellular ultrastructure. Recent development of super-resolution fluorescence microscopy allows the location of molecules to be determined with nanometer-scale spatial resolution....
Chaganti Srinivasa Reddy et al.
Journal of biomedical materials research. Part A, 102(10), 3713-3725 (2013-11-30)
Polycaprolactone (PCL), a synthetic biocompatible and biodegradable polymer generally used as a scaffold material for tissue engineering applications. The high stiffness and hydrophobicity of the PCL fiber mesh does not provide significant cell attachment and proliferation in cardiac tissue engineering....
Nan Li et al.
Lab on a chip, 8(12), 2105-2112 (2008-11-22)
High-density live cell array serves as a valuable tool for the development of high-throughput immunophenotyping systems and cell-based biosensors. In this paper, we have, for the first time, demonstrated a simple fabrication process to form the hexamethyldisilazane (HMDS) and poly(ethylene...
Tian Xia et al.
Applied and environmental microbiology, 81(10), 3387-3394 (2015-03-10)
Escherichia coli that is unable to metabolize d-glucose (with knockouts in ptsG, manZ, and glk) accumulates a small amount of d-glucose (yield of about 0.01 g/g) during growth on the pentoses d-xylose or l-arabinose as a sole carbon source. Additional...
Tatsuya Nitabaru et al.
Journal of the American Chemical Society, 131(38), 13860-13869 (2009-09-10)
Full details of an anti-selective catalytic asymmetric nitroaldol reaction promoted by a heterobimetallic catalyst comprised of Nd(5)O(O(i)Pr)(13), an amide-based ligand, and NaHMDS (sodium hexamethyldisilazide) are described. A systematic synthesis and evaluation of amide-based ligands led to the identification of optimum...
Tong Zhang et al.
Electrophoresis, 29(4), 944-951 (2008-01-24)
This simultaneous separation of basic, acidic and neutral analytes by pressure-assisted CEC (pCEC) using a hybrid (tetramethoxysilane and methyltrimethoxysilane) silica-based monolith, chemically modified with octadecyldimethylchlorosilane followed by endcapping with hexamethyldisilazane is described. The endcapping resulted in near Gaussian peaks for...
Sascha Nowak et al.
Analytical and bioanalytical chemistry, 407(3), 1023-1026 (2014-09-23)
Low gas flow ICP-OES with a total argon consumption below 0.7 L/min is introduced for the analysis of trace elements in blood samples to investigate the influence of samples containing an organic solvent in a demanding matrix on the performance of...
J Jeremy Chae et al.
Acta ophthalmologica, 93(1), e57-e66 (2014-12-17)
This study was performed to evaluate the potential of a collagen-based membrane, collagen vitrigel (CV), for reconstructing corneal epithelium in the stromal wound and limbal stem cell deficiency (LSCD) models. Three groups of rabbits were used in the stromal wound...
Xiaoguang Li et al.
Chemical communications (Cambridge, England), 47(38), 10761-10763 (2011-08-30)
A silica microsphere suspension and a silica sol are employed in a two-step dipping process for the preparation of a superhydrophobic surface. It's not only a facile way to achieve the lotus effect, but can also create a multi-functional surface...
Hung-Che Chou et al.
Colloids and surfaces. B, Biointerfaces, 73(2), 244-249 (2009-06-24)
This paper utilizes a silver electrode quartz crystal microbalance (QCM) mass sensor to detect the physiology of cells. This study also investigates the plasma surface modification of silver electrode QCMs through deposition of hexamethyldisilazane (HMDSZ) films as a protection film....
Surface modification of nano-sized HZSM-5 and HFER by pre-coking and silanization.
J. Catal., 251(2), 258-270 (2007)
Zhengtao Deng et al.
Nanoscale, 3(10), 4346-4351 (2011-09-15)
Here we report the colloidal synthesis of size-tunable SnS nanocrystals that have an unusual meta-stable cubic zinc-blende phase instead of the more stable layered orthorhombic phase. The single-crystalline zinc-blende SnS nanocrystals with sizes of 8 nm, 60 nm, and 700...
Jesus A Cuaron et al.
Phytotherapy research : PTR, 28(8), 1240-1245 (2014-02-13)
Tea tree oil (TTO)-reduced susceptibility (TTORS) mutants of two Staphylococcus aureus laboratory strains were isolated utilizing TTO gradient plates. Attempts to isolate TTORS mutants employing agar plates containing single TTO concentrations failed. All TTORS mutants demonstrated a small colony variant...
Bradley P Dixon et al.
PloS one, 6(1), e16595-e16595 (2011-02-10)
Children with complex urogenital anomalies often require bladder reconstruction. Gastrointestinal tissues used in bladder augmentations exhibit a greatly increased risk of malignancy, and the bladder microenvironment may play a role in this carcinogenesis. Investigating the influences of the bladder microenvironment...
Guandong Zhang et al.
Materials science & engineering. C, Materials for biological applications, 30(1), 92-97 (2010-01-01)
This paper describes the synthesis and surface engineering of core/shell-type iron/iron oxide nanoparticles for magnetic hyperthermia cancer therapy. Iron/iron oxide nanoparticles were synthesized from microemulsions of NaBH(4) and FeCl(3), followed by surface modification in which a thin hydrophobic hexamethyldisilazane layer...
Mario Janjetovic et al.
Chemical communications (Cambridge, England), 49(18), 1826-1828 (2013-01-30)
Sm(HMDS)(2) in n-hexane mediates fast cleavage of primary, secondary and tertiary alkyl fluorides in good to excellent yields. In n-hexane Sm(HMDS)(2) exhibits uniquely enhanced reductive ability towards the C-F bond compared to when using THF as solvent.
Mahdis Shayan et al.
Journal of materials science. Materials in medicine, 25(12), 2721-2730 (2014-07-31)
Osteoblast response was evaluated with polymethylmethacrylate (PMMA)/titanium dioxide (TiO2) nanocomposite thin films that exhibit the controllable wettability with ultraviolet (UV) treatment. In this study, three samples of PMMA/TiO2 were fabricated with three different compositional volume ratios (i.e., 25/75, 50/50, and...
Juliana Tsz Yan Lee et al.
Scanning, 34(1), 12-25 (2012-04-26)
Common dehydration methods of cells on biomaterials for scanning electron microscopy (SEM) include air drying, hexamethyldisilazane (HMDS) or tetramethysilane (TMS) treatment and critical point drying (CPD). On the other side, freeze-drying has been widely employed in dehydrating biological samples and...
Jocelyn N Galloway et al.
Human molecular genetics, 23(22), 5906-5915 (2014-07-06)
Determining the molecular mechanism(s) leading to Purkinje neuron loss in the neurodegenerative disorder fragile X-associated tremor/ataxia syndrome (FXTAS) is limited by the complex morphology of this cell type. Purkinje neurons are notoriously difficult to isolate and maintain in culture presenting...
H B Lazrek et al.
Nucleosides, nucleotides & nucleic acids, 26(8-9), 1095-1098 (2007-12-07)
Several alpha/beta-D-ribonucleosides were synthesized in good yields under mild conditions by N-glycosylations of acetyl 2,3,5-tri-O-benzoyl-beta-D-ribofuranose with silylated nucleobases in acetonitrile using NP doped with iodine as catalyst.
Friederike S Rossmann et al.
PLoS pathogens, 11(2), e1004653-e1004653 (2015-02-24)
The microbiome and the phage meta-genome within the human gut are influenced by antibiotic treatments. Identifying a novel mechanism, here we demonstrate that bacteria use the universal communication molecule AI-2 to induce virulence genes and transfer them via phage release....
Sarah F Cook et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 985, 131-141 (2015-02-15)
The aims of this study were to develop, validate, and apply a high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (HPLC-ESI-MS/MS) method for quantification of protein-derived 3-(cystein-S-yl)-acetaminophen (APAP-Cys) in human serum. Formation of acetaminophen (APAP) protein adducts is thought to be a...