搜索范围
294993
应用筛选条件
关键词:'294993'
显示 1-30 #N/A 629 条结果 关于 "294993" 范围 论文
Panfeng Yu et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 959, 55-61 (2014-04-29)
This paper described a novel application of PEGylated magnetic carbon nanotubes as solid-phase extraction nanosorbents for the determination of puerarin in rat plasma by high performance liquid chromatography (HPLC). A solvothermal method was employed for the synthesis of monodisperse magnetites
Małgorzata Cebo et al.
Analytical and bioanalytical chemistry, 406(30), 8013-8020 (2014-10-31)
Isotope exchange at the histidine C2 atom of imidazole in D2O solution is well known to occur at a significantly slower rate than the exchange of amide protons. Analysis of the kinetics of this isotope-exchange reaction is proposed herein as
T T H Pham et al.
Biochimie, 107 Pt A, 143-153 (2014-06-22)
Visceral leishmaniasis is a life-threatening disease that affects nearly a million people every year. The emergence of Leishmania strains resistant to existing drugs complicates its treatment. The purpose of this study was to develop a new lipid formulation based on
Michael J Lawrence et al.
The Journal of experimental biology, 218(Pt 13), 2124-2135 (2015-05-20)
Relative to the gills, the mechanisms by which the kidney contributes to ammonia and acid-base homeostasis in fish are poorly understood. Goldfish were exposed to a low pH environment (pH 4.0, 48 h), which induced a characteristic metabolic acidosis and an increase
C Esteve et al.
Talanta, 146, 326-334 (2015-12-24)
A rapid and sensitive analytical method for the simultaneous determination of thirteen endocrine disruptors (five phthalates, seven parabens, and bisphenol A) in a single chromatographic run has been developed for the first time. The separation method, based on ultra-high performance
Isabel Freitag et al.
Journal of biomedical optics, 20(5), 55002-55002 (2015-05-06)
Identification of tumor and normal cells is a promising application of Raman spectroscopy. The throughput of Raman-assisted cell sorting is limited by low sensitivity. Surface-enhanced Raman spectroscopy (SERS) is a well-recognized candidate to increase the intensity of Raman signals of
Vidula Kolhatkar et al.
Pharmaceutical research, 32(1), 196-210 (2014-08-06)
An oligonucleotide termed 'T-oligo' having sequence homology with telomere overhang has shown cytotoxicity in multiple cancers. We have demonstrated that T-oligo can induce apoptosis in androgen independent prostate cancer cell line DU-145. In this report, we evaluate the use of
S Astals et al.
Water research, 81, 208-215 (2015-06-13)
Despite the importance of quantifying inhibitory capacity of compounds in anaerobic digestion, there is currently no well-defined method to assess it. Experimental methods in literature are frequently time-consuming and resource intensive. As a result, detailed inhibition testing rarely forms part
Blagovesta Popova et al.
PloS one, 10(9), e0136778-e0136778 (2015-09-12)
A major challenge in gene library generation is to guarantee a large functional size and diversity that significantly increases the chances of selecting different functional protein variants. The use of trinucleotides mixtures for controlled randomization results in superior library diversity
Douglas L Rothman et al.
Neurochemical research, 37(11), 2597-2612 (2012-10-30)
The high in vivo flux of the glutamate/glutamine cycle puts a strong demand on the return of ammonia released by phosphate activated glutaminase from the neurons to the astrocytes in order to maintain nitrogen balance. In this paper we review
Yu Wan et al.
Environmental monitoring and assessment, 186(10), 6061-6081 (2014-06-19)
The odour emission characteristics of 22 recreational rivers in Nanjing were investigated and analysed. Eight odorous compounds (ammonia (NH₃), hydrogen sulphide (H₂S), sulphur dioxide (SO₂), carbon disulphide (CS₂), nitrobenzene (C₆H₅NO₂), aniline (C₆H₅NH₂), dimethylamine (C₂H₇N), and formaldehyde (HCHO)) were measured in
Gul N Shah et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(18), 7423-7428 (2013-04-17)
Prior studies with carbonic anhydrase (CA) inhibitors implicated mitochondrial CA in ureagenesis and gluconeogenesis. Subsequent studies identified two mitochondrial CAs. To distinguish the contribution of each enzyme, we studied the effects of targeted disruption of the murine CA genes, called
Amir Behzadnia et al.
Journal of photochemistry and photobiology. B, Biology, 149, 103-115 (2015-06-10)
Here, a simple processing route is introduced for preparation of N-doped nano structure ZnO at 75-80°C using in-situ sonosynthesis method through hydrolysis of zinc acetate at pH≈9-10 adjusting with ammonia. Synthesis and fabrication of nano N-doped ZnO were carried out
Bahram Ebrahimi et al.
Journal of AOAC International, 98(3), 822-827 (2015-06-19)
A sensitive and low cost SPE method for the extraction, preconcentration, and flame atomic absorption spectrometric determination of nickel at ng/mL levels is described. Parameters governing the extraction efficiency including pH of the solution, eluent type, sample volume, and matrix
A Wallner et al.
Nature communications, 6, 5956-5956 (2015-01-21)
Half of the heavy elements including all actinides are produced in r-process nucleosynthesis, whose sites and history remain a mystery. If continuously produced, the Interstellar Medium is expected to build-up a quasi-steady state of abundances of short-lived nuclides (with half-lives
Lin Zhu et al.
Food chemistry, 194, 1320-1328 (2015-10-17)
Nearly 50% of naturally-occurring pyrrolizidine alkaloids (PAs) are hepatotoxic, and the majority of hepatotoxic PAs are retronecine-type PAs (RET-PAs). However, quantitative measurement of PAs in herbs/foodstuffs is often difficult because most of reference PAs are unavailable. In this study, a
Marlo K Sellin Jeffries et al.
Environmental toxicology and chemistry, 34(6), 1369-1381 (2015-05-02)
The fish embryo toxicity (FET) test has been proposed as an alternative to the larval growth and survival (LGS) test. The objectives of the present study were to evaluate the sensitivity of the FET and LGS tests in fathead minnows
The nitrogen fix.
Nature, 501(7465), 6-6 (2013-09-07)
Laurie Bruzzese et al.
Journal of applied physiology (Bethesda, Md. : 1985), 119(2), 140-147 (2015-05-23)
The nucleoside adenosine acts on the nervous and cardiovascular systems via the A2A receptor (A2AR). In response to oxygen level in tissues, adenosine plasma concentration is regulated in particular via its synthesis by CD73 and via its degradation by adenosine
Kazuo Hotta et al.
Anticancer research, 35(9), 4681-4689 (2015-08-09)
We investigated whether hepatic multidrug resistance-associated protein 2 (ABCC2) is involved in the hepatobiliary excretion of regorafenib, a novel multi-kinase inhibitor, using Sprague-Dawley (SD) rats and Eisai hyperbilirubinemic rats (EHBR) lacking the efflux transporter ABCC2. The involvement of organic anion-transporting
Mayumi Sasaki et al.
Nucleic acids research, 41(10), 5382-5399 (2013-04-09)
The Schizosaccharomyces pombe genome is one of the smallest among the free-living eukaryotes. We further reduced the S. pombe gene number by large-scale gene deletion to identify a minimal gene set required for growth under laboratory conditions. The genome-reduced strain
Yifen Wen et al.
Colloids and surfaces. B, Biointerfaces, 133, 246-253 (2015-06-30)
Polysaccharide-based crosslinked nanogles (bionanogels) exhibiting multiple stimuli-responsive release of encapsulated therapeutics hold a great potential as tumor-targeting intracelluar durg delivery nanocarriers. Herein, we report the synthesis of monodisperse dual temperature/acidic pH-responsive bionanogels (DuR-BNGs) by aqueous crosslinking polymerization through temperature-induced self-association
R Oswald et al.
Science (New York, N.Y.), 341(6151), 1233-1235 (2013-09-14)
Abiotic release of nitrous acid (HONO) in equilibrium with soil nitrite (NO2(-)) was suggested as an important contributor to the missing source of atmospheric HONO and hydroxyl radicals (OH). The role of total soil-derived HONO in the biogeochemical and atmospheric
Chun Kong Mak et al.
Journal of chromatography. A, 1419, 81-88 (2015-10-13)
Thyroxine (T4) is one of the major thyroid hormones, which regulates cellular metabolism, central nervous system development, body temperature, reproduction and growth. The simulation of oxidation reactions of T4 may provide further information about the fate of T4 in cells
Oana A Cuzman et al.
Journal of biotechnology, 214, 49-56 (2015-09-17)
The ureolytic bacteria are one of the most efficient organisms able to produce high amounts of carbonate that easily react with the free calcium ions from the environment. Sporosarcina pasteurii, a robust microbe in alkaline environments, was tested in this
Hakim Rahma et al.
ACS applied materials & interfaces, 7(21), 11536-11546 (2015-05-06)
The fabrication of highly effective antimicrobial materials is an important strategy for coping with the growing concern of bacterial resistance. In this study, N-chloramine-functionalized hollow hemispherical structures were designed and prepared to examine possible enhancement of antimicrobial performance. Antimicrobial testing
Nahid Dayyani et al.
European journal of medicinal chemistry, 98, 190-202 (2015-05-30)
Novel pH-sensitive, biocompatible and biodegradable magneto-dendrimers with OH and/or NH2 functional groups based on poly amino-ester were synthesized for delivery of anti-cancer drugs. Magnetite nanoparticles (MNPs) were synthesized by the co-precipitation method and their surfaces were modified by 3-aminopropyl triethoxysilane.
Hui Peng et al.
Environmental science & technology, 49(5), 2999-3006 (2015-01-27)
Ultra-High Resolution LC/mass spectrometry (LC-UHRMS; Thermo Fisher Q-Exactive) was used to identify two novel isomers of hydroxylated bis(2-ethylhexyl)-tetrabromophthalate (OH-TBPH) which were unexpectedly observed in a commercial standard of TBPH. By combining ultra-high resolution (UHR) mass spectra (MS(1)), mass errors to
Measurement and interpretation of plasma ammonia.
H J Lee et al.
British journal of hospital medicine (London, England : 2005), 75(3), C40-C43 (2014-03-14)
Siniša Sić et al.
Journal of chromatography. A, 1408, 93-100 (2015-07-18)
Investigation of oligosaccharides attached to proteins as post-translational modification remains an important research field in the area of glycoproteomics as well as in biotechnology. The development of new tools for qualitative and quantitative analysis of glycans has gained high importance
1/21