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H4875

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M Kosová et al.
Journal of clinical pharmacy and therapeutics, 40(4), 436-440 (2015-05-28)
Parabens have been commonly used as preservatives in pharmaceutical and cosmetics industries for almost 50 years. These compounds are thermostable, pH-stable and inexpensive and have a wide antimicrobial effect. The antimicrobial activity of parabens in emulsion system is limited by...
James P Bernot et al.
The Journal of parasitology, 101(2), 167-181 (2014-12-17)
This paper aims to resolve the dual composition of the triakid shark-hosted tetraphyllidean genus Calliobothrium--an issue that has been recognized for over a decade. As it stands, this genus includes a number of large species with laciniate proglottids, most of...
Hexamethyldisilazane-mediated controlled polymerization of alpha-amino acid N-carboxyanhydrides.
Hua Lu et al.
Journal of the American Chemical Society, 129(46), 14114-14115 (2007-10-30)
Urszula Stachewicz et al.
Acta biomaterialia, 27, 88-100 (2015-09-09)
The interaction between resident cells and electrospun nanofibers is critical in determining resultant osteoblast proliferation and activity in orthopedic tissue scaffolds. The use of techniques to evaluate cell-nanofiber interactions is critical in understanding scaffold function, with visualization promising unparalleled access...
Susanne Müller et al.
Applied and environmental microbiology, 81(1), 203-210 (2014-10-19)
Biofilm formation is a common mechanism for surviving environmental stress and can be triggered by both intraspecies and interspecies interactions. Prolonged predator-prey interactions between the soil bacterium Myxococcus xanthus and Bacillus subtilis were found to induce the formation of a...
Vaishaali Natarajan et al.
PloS one, 10(8), e0134541-e0134541 (2015-08-08)
Titanium dioxide (TiO2) nanoparticles are one of the most highly manufactured and employed nanomaterials in the world with applications in copious industrial and consumer products. The liver is a major accumulation site for many nanoparticles, including TiO2, directly through intentional...
Smriti A Agrawal et al.
Human genetics, 134(7), 717-735 (2015-04-22)
Although majority of the genes linked to early-onset cataract exhibit lens fiber cell-enriched expression, our understanding of gene regulation in these cells is limited to function of just eight transcription factors and largely in the context of crystallins. We report...
José Ballester-Beltrán et al.
Biofabrication, 6(3), 035009-035009 (2014-05-29)
Currently, cell culture systems that include nanoscale topography are widely used in order to provide cells additional cues closer to the in vivo environment, seeking to mimic the natural extracellular matrix. Electrospinning is one of the most common techniques to...
Leila C Posch et al.
Investigative ophthalmology & visual science, 55(7), 4229-4237 (2014-05-31)
To evaluate the effects of a chemically preserved multipurpose contact lens care solution (MPS) on the corneal epithelial surface and Pseudomonas aeruginosa (PA) internalization in the rabbit corneal epithelium. Rabbits were fit in one eye with a silicone hydrogel lens...
Michal Bartnikowski et al.
Biotechnology and bioengineering, 111(7), 1440-1451 (2014-01-30)
Tissue engineering focuses on the repair and regeneration of tissues through the use of biodegradable scaffold systems that structurally support regions of injury while recruiting and/or stimulating cell populations to rebuild the target tissue. Within bone tissue engineering, the effects...
Jennifer L Wehmeyer et al.
Tissue engineering. Part C, Methods, 21(7), 649-659 (2014-12-05)
Numerous techniques have been reported for preparing and sterilizing amniotic membrane (AM) for use in clinical applications. However, these preparations either do not produce completely sterile tissue or are detrimental to molecules unique to the tissue matrix, thus compromising beneficial...
Iwona Ziemecka et al.
Lab on a chip, 15(2), 504-511 (2014-11-20)
Pervaporation in a microfluidic device is performed on liquid ternary solutions of hydrogen peroxide-water-methanol in order to concentrate hydrogen peroxide (H2O2) by removing methanol. The quantitative analysis of the pervaporation of solutions with different initial compositions is performed, varying the...
Marco C Bottino et al.
Clinical oral investigations, 18(9), 2151-2158 (2014-02-19)
The purposes of this study were to fabricate biodegradable polydioxanone (PDS II®) electrospun periodontal drug delivery systems (hereafter referred to as matrices) containing either metronidazole (MET) or ciprofloxacin (CIP) and to investigate the effects of antibiotic incorporation on both periodontopathogens...
JiSoo Park et al.
Lab on a chip, 15(1), 141-150 (2014-10-16)
There has been a growing need for in vitro models of neurodegenerative diseases such as Alzheimer's disease that would enable a better understanding of etiology and faster development of treatment strategies. However, meeting this demand has been held back by...
Sai Zhang et al.
Journal of biomaterials applications, 29(10), 1394-1406 (2015-01-17)
Nano/micro engineered polymeric materials offer expansive scope of biomimetic scaffolds for bone tissue engineering especially those involving electrospun biodegradable nanofibers incorporated with inorganic nanoparticles, thus mimicking the extracellular matrix of bone both structurally and chemically. For the first time, poly-3-hydroxybutyrate-co-3-hydroxyvalerate...
Niklas Söderholm et al.
PloS one, 6(9), e24353-e24353 (2011-09-29)
Polymorphonuclear neutrophils (PMNs) are important components of the human innate immune system and are rapidly recruited at the site of bacterial infection. Despite the effective phagocytic activity of PMNs, Neisseria gonorrhoeae infections are characterized by high survival within PMNs. We...
Birgitt Gutbier et al.
American journal of physiology. Lung cellular and molecular physiology, 309(3), L250-L261 (2015-06-07)
In patients with chronic obstructive pulmonary disease (COPD), Moraxella catarrhalis infection of the lower airways is associated with chronic colonization and inflammation during stable disease and acute exacerbations. Chronic smoke exposure induces chronic inflammation and impairs mucociliary clearance, thus contributing...
Kenneth K B Tan et al.
Biomaterials, 43, 32-43 (2015-01-17)
Parkinson's disease (PD) is a neurodegenerative disease attributed to the loss of midbrain dopaminergic (DA) neurons. The current lack of predictive models for this disease has been hampered by the acquirement of robust cells, posing a major barrier to drug...
Andrew J Ford et al.
Acta biomaterialia, 24, 220-227 (2015-06-29)
The deposition of extracellular matrix (ECM) proteins by hepatic cells during fibrosis leads to the stiffening of the organ and perturbed cellular functions. Changes in the elasticity of liver tissue are manifested by altered phenotype in hepatic cells. We have...
Ashang Luwang Laiva et al.
International journal of pharmaceutics, 483(1-2), 115-123 (2015-02-15)
Electrospun hybrid nanofibrous scaffolds have gained much importance in the field of tissue engineering and drug delivery applications owing to its multifaceted properties. In this study, the properties of composite polycaprolactone (PCL)/silk fibroin (SF) nanofibrous scaffolds was investigated as a...
Qi Xing et al.
Tissue engineering. Part C, Methods, 21(1), 77-87 (2014-05-29)
The application of cell-derived extracellular matrix (ECM) in tissue engineering has gained increasing interest because it can provide a naturally occurring, complex set of physiologically functional signals for cell growth. The ECM scaffolds produced from decellularized fibroblast cell sheets contain...
I K Herrmann et al.
Nanoscale, 7(32), 13511-13520 (2015-07-24)
Sepsis is a severe medical condition and a leading cause of hospital mortality. Prompt diagnosis and early treatment has a significant, positive impact on patient outcome. However, sepsis is not always easy to diagnose, especially in critically ill patients. Here...
David E Moody et al.
Journal of analytical toxicology, 39(5), 374-386 (2015-04-15)
Opioid-related mortality rates have escalated. Drug interactions may increase blood concentrations of the opioid. We therefore used human liver microsomes (HLMs) and cDNA-expressed human cytochrome P450s (rCYPs) to study in vitro inhibition of buprenorphine metabolism to norbuprenorphine (CYP3A4 and 2C8)...
Jie Shen et al.
Scientific reports, 5, 8651-8651 (2015-03-04)
It is technically challenging to investigate the function of secreted protein in real time by supply of conditioned medium that contains secreted protein of interest. The internalization of anthrax toxin is facilitated by a secreted protein Dickkopf-1 (DKK1) and its...
Daniele Fabbri et al.
Environmental science & technology, 42(8), 2957-2963 (2008-05-24)
Using the pyrolysis-gas chromatography-mass spectrometry and off-line pyrolysis/silylation methods for lignites from three Miocene brown coal basins of Poland resulted in the characterization of many organic compounds, including dominant cellulose degradation products such as levoglucosan, 1,6-anhydro-beta-D-glucofuranose, and 1,4:3,6-dianhydroglucopyranose. Levoglucosan is...
Natalie M Clark et al.
Chemical communications (Cambridge, England), (39)(39), 5835-5837 (2009-09-30)
'Conventional' (-)-sparteine adducts of lithium and sodium 1,1,1,3,3,3-hexamethyldisilazide (HMDS) were prepared and characterised, along with an unexpected and 'unconventional' hydroxyl-incorporated sodium sodiate, [(-)-sparteine x Na(mu-HMDS)Na x (-)-sparteine](+)[Na(4)(mu-HMDS)(4)(OH)](-)--the complex anion of which is the first inverse crown ether anion.
Rajeswari Ravichandran et al.
Tissue engineering. Part A, 21(7-8), 1288-1298 (2015-01-07)
Heart failure due to Myocardial Infarction (MI) remains the leading cause of death worldwide due to the inability of myocardial tissue to regenerate following infarction. Current therapies could only retard the progression of disease, but fails to bring functional improvement...
Emi Uchida et al.
Nature communications, 6, 7310-7310 (2015-06-19)
Motion is an essential process for many living organisms and for artificial robots and machines. To date, creating self-propelled motion in nano-to-macroscopic-sized objects has been a challenging issue for scientists. Herein, we report the directional and continuous motion of crystals...
Jerry Isaacson et al.
Angewandte Chemie (International ed. in English), 48(10), 1845-1848 (2009-01-29)
(-)-Dysibetaine has been synthesized in 11 steps from readily available L-malic acid (see scheme). The key step is a unique Ugi 4-center-3-component cyclization reaction, where an ester group acts as the carboxylic acid component. The use of 1,1,1,3,3,3-hexamethyldisilazane as an...
Reginald Tran et al.
Biomicrofluidics, 8(4), 046501-046501 (2014-11-08)
Cell culture in microfluidic systems has primarily been conducted in devices comprised of polydimethylsiloxane (PDMS) or other elastomers. As polystyrene (PS) is the most characterized and commonly used substrate material for cell culture, microfluidic cell culture would ideally be conducted...
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