|别名||硫氰酸铵 ;硫氰化铵 ;Ammonium sulfocyanate Ammonium rhodanide|
Sixteen novel pyrazole acyl thiourea derivatives 6 were synthesized from monomethylhydrazine (phenylhydrazine) and ethyl acetoacetate. The key 5-chloro-3-methyl-1-substituted-1H-pyrazole-4-carbonyl ch...Read More
IL-15 serves as a costimulator in determining the activity of autoreactive CD8 T cells in an experimental mouse model of graft-versus-host-like disease.
To elucidate the mechanisms controlling peripheral tolerance, we established two transgenic (Tg) mouse strains expressing different levels of membrane-bound OVA (mOVA) as a skin-associated self-Ag. Wh...Read More
Microscale chemistry-based design of eco-friendly, reagent-saving and efficient pharmaceutical analysis: a miniaturized Volhard's titration for the assay of sodium chloride.
This work demonstrates the extended application of microscale chemistry which has been used in the educational discipline to the real analytical purposes. Using Volhard's titration for the determ...Read More
Protecting RNA from degradation, whilst maintaining its biological activity, is essential in molecular biology. However, RNA is very sensitive to degradation by ribonucleases, especially at temperatur...Read More
A new toxic protein named malanin was isolated from seeds of Malania olei fera by hydrophobic chromatography, whose cytotoxic activities against carcinoma cells were very strong. The conformational ch...Read More
Isolation of the key intermediates in the catalyst-free conversion of oxiranes to thiiranes in water at ambient temperature.
Herein we shed light on the mechanism of the reaction of epoxides with ammonium thiocyanate to give the corresponding thiiranes in water, and we present a computational mechanistic model for this high...Read More
Vibrational spectroscopic study of ionic association in poly(ethylene oxide)-NH"4SCN polymer electrolytes
The polymer-ammonium complexes are an important class of proton conducting polymer electrolytes. In this work, poly(ethylene oxide) (PEO)-NH"4SCN electrolytes were prepared over a large range of ...Read More
Study of velocity and shear stress distributions in the impeller passages and the volute of a bio-centrifugal ventricular assist device.
The velocity fields within the impeller passages of three different impellers of the Kyoto-NTN bio-centrifugal ventricular assist device are measured using laser Doppler velocimetry in this study. The...Read More
Trace level determination of molybdenum in environmental and biological samples using surfactant-mediated liquid-liquid extraction
A novel and sensitive spectrophotometric method for the determination of molybdenum at trace levels in environmental and biological samples is proposed. The method is based on the reaction of Mo (V) w...Read More
Study of the interactions of Sodium Thiocyanate, Potassium Thiocyanate and Ammonium Thiocyanate in water+N,N-dimethylformamide mixtures by Raman spectroscopy
Raman spectra of water+N,N-dimethylformamide (DMF) mixtures and their solutions with NaNCS, KNCS and NH"4NCS were obtained. The bands of @n(CO) stretching, @d(OCN) bending, r(CH"3) rocking a...Read More
Avidity of the immunoglobulin G response to a Neisseria meningitidis group C polysaccharide conjugate vaccine as measured by inhibition and chaotropic enzyme-linked immunosorbent assays.
Antibody avidity, the strength of the multivalent interaction between antibodies and their antigens, is an important characteristic of protective immune responses. We have developed an inhibition enzy...Read More
A new one-pot four component procedure for synthesis of densely functionalized pyrroles using commercially available ninhydrin with phosphorane intermediates produced in the reaction between triphenyl...Read More
Development of ultrasound-assisted emulsification microextraction for determination of thiocynate ion in human urine and saliva samples.
Ultrasound-assisted emulsification microextraction (USAE-ME) procedure coupled with UV-vis spectrophotometric measurement has been developed for determination of thiocyanate ion (SCN(-)) in water and ...Read More
Assessment of IgG avidity against pertussis toxin and filamentous hemagglutinin via an adapted enzyme-linked immunosorbent assay (ELISA) using ammonium thiocyanate.
Antibody avidity, defined as the strength of binding between antibody and antigen, represents a functional measure of affinity maturation of antibodies. Determination of the antibody avidity is usuall...Read More
Standardisation of metalloimmunoassay protocols for assessment of silver nanoparticle antibody conjugates.
The application of silver nanoparticles to electrochemical metalloimmunoassays has previously been reported (Szymanski et al., 2009) and is now used in the electrochemical Argento immunoassay platform...Read More
The acute toxicity of potassium thiocyanate (KSCN) and ammonium thiocyanate (NH(4)SCN) to rice seedlings was tested. Hydroponically-grown plants showed different responses to the two species of thiocy...Read More
Multicomponent reactions of ammonium thiocyanate, acyl chlorides, alkyl bromides, and enaminones: a facile one-pot synthesis of thiophenes.
An efficient synthesis of thiophene derivatives is described via one-pot reaction between ammonium thiocyanate, acyl chlorides, α-halocarbonyls, and enaminones under solvent-free conditions at 65?°C...Read More
Synthesis of functionalized 1,2,4-triazole-3-thiones from ammonium isothiocyanate, acid chlorides, and arylhydrazines.
An efficient synthesis of 1-aryl-5-aryl(alkyl)-1,2-dihydro-3H-1,2,4-triazole-3-thiones via reaction between ammonium thiocyanate, acid chlorides, and arylhydrazines is described....Read More
A partial exploration of the potential energy surfaces of SCN and HSCN: Implications for the enzyme-mediated detoxification of cyanide
Cyanide (CN) is considered to be a terrorist chemical weapon due to its ready availability in multi-kilogram quantities and multi-modal means of intoxication. The body uses the sulfur transferase enzy...Read More
A one-pot synthesis of functionalized thiazoles from acid chlorides, secondary amines, ethyl bromopyruvate, and ammonium thiocyanate.
An efficient one-pot synthesis of ethyl 2-(4-aryl-2-dialkylamino-1,3-thiazole-5-yl)-2-oxoacetates using acid chlorides, secondary amines, ethyl bromopyruvate, and ammonium thiocyanate is described....Read More
Comparison of antioxidant and free radical scavenging activities of the essential oils from flowers and fruits of Otostegia persica Boiss.
The aerial parts of the endemic plant of Otostegia persica Boiss. in two different stages of flowering and fruiting were hydro-distilled to extract oils in the yields of 0.3 and 0.15% (v/w), respectiv...Read More
Ultrasound-assisted thiocyanation of aromatic and heteroaromatic compounds using ammonium thiocyanate and DDQ
Thiocyanation of various aromatic and heteroaromatic compounds has been achieved in the presence of ammonium thiocyanate (NH"4SCN) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) in methanol ...Read More
As global transcriptome analyses with a growing demand on layer-specific applications are widely used in cutaneous biology, we investigated the effect of established and optimized dermo-epidermal sepa...Read More
Spectrophotometric determination of trazodone, amineptine and amitriptyline hydrochlorides through ion-pair formation with molybdenum and thiocyanate
Extraction spectrophotometric method has been developed for the determination of tricyclic drugs such as trazodone (TZH), amineptine (APH) and amitriptyline (ATPH) hydrochlorides in pure form and in t...Read More
Problems and possibilities of the determination of Co in serum and urine samples by electrothermal atomic absorption spectrometry (ETAAS) are described. Optimal instrumental parameters as well as a su...Read More