Solid-Phase Complex Compounds and Composites of Metal Oxides, Fluorides, and Chalcogenides as Materials for Interference Coatings: A Review

2021 ◽  
Author(s):  
V. F. Zinchenko
Keyword(s):  
Metal Oxides ◽  
Solid Phase ◽  
Complex Compounds ◽  
Phase Complex

scholarly journals Effect of 2CaO·SiO2 particles addition on dephosphorization behavior

2020 ◽  
Vol 39 (1) ◽  
pp. 219-227
Author(s):  
Aijun Deng ◽  
Yunjin Xia ◽  
Jie Li ◽  
Dingdong Fan
Keyword(s):  
Liquid Slag ◽  
Solid Phase ◽  
Solid Particles ◽  
Hot Metal ◽  
Liquid Silicate ◽  
Phase Complex ◽  
Dephosphorization Slag ◽  
Stage 1 ◽  
Two Stages ◽  
Complex Liquid

AbstractThe effect of the addition of 2CaO·SiO2 solid particles on dephosphorization behavior in carbon-saturated hot metal was investigated. The research results showed that the addition of 2CaO·SiO2 particles have little influence on desilication and demanganization, and the removal of [Si] and [Mn] occurred in the first 5 min with different conditions where the contents of 2CaO·SiO2 particles addition for the conditions 1, 2, 3, 4, and 5 are 0, 2.2, 6.4, 8.6, and 13.0 g, respectively. The final dephosphorization ratios for the conditions 1, 2, 3, 4, and 5 are 61.2%, 66.9%, 79.6%, 63.0%, and 78.1%, respectively. The dephosphorization ratio decreases with the increase of 2CaO·SiO2 particles in the first 3 min. The reason for this is that the dephosphorization process between hot metal and slag containing C2S phase consisted of two stages: Stage 1, [P] transfers from hot metal to liquid slag and Stage 2, the dephosphorization production (3CaO·P2O5) in liquid slag reacts with 2CaO·SiO2 to form C2S–C3P solid solution. The increase of 2CaO·SiO2 particles increases the viscosity of slag and weakens the dephosphorization ability of the stage 1. The SEM and XRD analyses show that the phase of dephosphorization slag with the addition of different 2CaO·SiO2 particles is composed of white RO phase, complex liquid silicate phase, and black solid phase (C2S or C2S–C3P). Because the contents of C2S–C3P and 2CaO·SiO2 in slag and the dephosphorization ability of the two stages are different, the dephosphorization ability with different conditions is different.

Assay of creatine kinase isoenzyme MB in serum with time-resolved immunofluorometry

1990 ◽  
Vol 36 (9) ◽  
pp. 1679-1683 ◽  
Author(s):  
E S Lianidou ◽  
T K Christopoulos ◽  
E P Diamandis
Keyword(s):  
Creatine Kinase ◽  
Laser Excitation ◽  
Solid Phase ◽  
Time Resolved ◽  
Creatine Kinase Isoenzyme ◽  
Phase Complex ◽  
Precision And Accuracy ◽  
Accuracy Indices ◽  
First Time ◽  
Creatine Kinase Isoenzyme Mb

Abstract We describe the first time-resolved immunofluorometric assay for creatine kinase (EC 2.7.3.2) isoenzyme MB (CK-MB) in serum. The assay is based on the formation of the complex: solid-phase anti-CK-MB-CK-MB-biotinylated anti-CK-BB-streptavidin-BCPDA-Eu3+, where anti-CK-MB and anti-CK-BB are monoclonal antibodies against the CK isoenzymes MB and BB, respectively, and BCPDA is the europium chelator 4,7-bis(chlorosulfophenyl)-1,10-phenanthroline-2,9-dicarboxylic acid. The solid-phase complex is fluorescent and is measured on the dry solid-phase (microtiter well) in a specially designed time-resolved fluorometer that uses laser excitation. The assay requires 25 microL of serum and is not affected by the presence of either CK-MM (up to 5000 micrograms/L) or CK-BB (up to 1000 micrograms/L) in the sample. Precision and accuracy indices for the assay were satisfactory.

Structure and Infrared Radiation Properties of Metal Oxides-Doped Cordierites Using Graded Sintering Synthesis

2011 ◽  
Vol 311-313 ◽  
pp. 140-144
Author(s):  
Tao Jin ◽  
Rong Chang Zeng
Keyword(s):  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Infrared Radiation ◽  
Solid Phase ◽  
Wave Number ◽  
Infrared Spectrometry ◽  
Wave Band ◽  
Radiation Properties ◽  
Spinel Phases ◽  
Stretching Vibration

The infrared radiation materials of transition metal oxides doped cordierite systems are synthesized using graded solid phase sintering. And the infrared radiation properties are investigated by means of X-ray diffraction, infrared spectrometry and scanning electron microscope. The results show that new compounds are developed during graded heat treatment from 900 °C to 1250 °C. The spinel phases produced are the main crystal material, and the different doped ions and impurity carbon cause the new phases, to different degree defect in this system ,which types can be classified into: (Mg,Zn,□)Fe2O4, (Mg,Zn,Co,□)Al2O4, (Co,□)Cr2O4,SiC etc., The main diffraction peaks of new phases formed are positioned at the zone (2θ) between 35.227o and 36.837o, and has stretching vibration peaks. And the main infrared absorption peaks located at the low wave number zone indicate to some degree deviation under different doped ions. The doped cordierites have infrared emissivity superior to that prepared with the conventional one-step synthesis. The full wave band integral emissivity of the spinel phases ranged between 0.88 and 0.94 at ambient temperature.

scholarly journals Interaction of metal sulphides in films deposited from solutions of thiourea coordination compounds. Review

2021 ◽  
Vol 23 (3) ◽  
pp. 337-352
Author(s):  
Victor N. Semenov ◽  
Alexander V. Naumov
Keyword(s):  
Spray Pyrolysis ◽  
Coordination Compounds ◽  
Solid Phase ◽  
Cadmium Sulphide ◽  
Luminescent Properties ◽  
Complex Compounds ◽  
Semiconductor Film ◽  
Common Component ◽  
Aerosol Spray ◽  
Aerosol Spray Pyrolysis

Metal sulphides are highly important for the technology of semiconductor film materials. The potential of these compounds has not been exhausted yet when it comes to creating optoelectronic devices, solar cells, and luminescent devices based on them. The goal of this work was to determine the nature of interaction of sulphides in polycrystalline layers of CdS–MemSn, where Me are metals of groups I–VII of the periodic table. Cadmium sulphide was chosen as the common component of all studied systems due to the great photoelectric and luminescent properties of this well-studied material.It was shown that using aerosol spray pyrolysis of the solutions of thiourea complexes, we can obtain solid solutions and chemical compounds of CdS–MеmSn at temperatures not exceeding 500 °C. The main electric, optical, and luminescent properties of the layers were described.It was established that the use of aerosol spray pyrolysis of the solutions of thiourea coordination compounds allows significantly expanding the areas of solubility during the formation of solid sulphide solutions. The specific character of solid-phase interaction and nonequilibrium of the processes occurring during the deposition of layers allow avoiding structural incompatibility of the components expressed in the form of typical factors, such as the non-uniformity of crystal structure, differences in the chemical nature of the components, and discrepancies in sizes of substituting/penetrating atoms.Under such conditions of deposition of films (the lower threshold of deposition temperatures is determined by the temperature of decomposition of the most thermally stable thiourea coordination compound and does not exceed 250 °С), the solid-phase interactions of most sulphides cannot be achieved. Therefore, the interaction occurs at the moment of thermal destruction of complex compounds due to the emerging valence opportunities of their structural fragments 

scholarly journals Lanthanum Complex with Neridronic Acid: Synthesis and Properties

2019 ◽  
Vol 14 (2) ◽  
pp. 70-77 ◽  
Author(s):  
A. V. Galantsev ◽  
D. V. Drobot ◽  
P. V. Dorovatovsky ◽  
V. N. Khrustalev
Keyword(s):  
Particle Size ◽  
Solid Phase ◽  
Average Particle Size ◽  
Acid Synthesis ◽  
Complex Compounds ◽  
Bone Diseases ◽  
Polymer Chains ◽  
Average Particle ◽  
Bisphosphonic Acid ◽  
Physicochemical Methods

Currently, various amino bisphosphonates are widely used in the treatment of many bone diseases. One of the most well-known complex compounds of neridronic acid (6-amino-1-hydroxyhexylidene-1,1- bisphosphonic acid) is sodium neridronate – a bisphosphonate, which is used to treat osteogenesis and Paget's disease. However, there is no data on compounds of neridronic acid with rare earth elements. A new complex of lanthanum with 6-amino-1-hydroxyhexylidene-1,1-bisphosphonic acid (I) was obtained and characterized by various physicochemical methods (chemical analysis, IR spectroscopy, solid-phase 31P NMR spectroscopy, optical microscopy, PCA, DTA). According to the research data the complex I has the composition {La[(H3N-(CH2)5-C(OH)(PO2(OH))2]2(H2O)2}[OH]·H2O and represents the coordination 1D-polymer due to two bridged phosphonic groups with lanthanum atoms in a tetragonal-antiprismatic environment. In a crystal, polymer chains form a 3D-frame porous structure by means of strong hydrogen bonds O─H ··· O and N─H ··· O with endless channels, available to include a variety of inorganic anions or small organic molecules. A study under the microscope showed that the sample is needle crystals (thin rods) of different lengths. The particle size distribution was obtained by laser diffraction, and the average particle size was determined: 50 µm in length and 2.5 µm in thickness.

scholarly journals Partially purified antibodies used in a solid-phase radioimmunoassay for detecting candidal antigenemia

1979 ◽  
Vol 9 (3) ◽  
pp. 362-368
Author(s):  
A H Poor ◽  
J E Cutler
Keyword(s):  
Solid Phase ◽  
Immune Serum ◽  
Blood Cultures ◽  
Affinity Column ◽  
Systemic Candidiasis ◽  
Serum Specimen ◽  
Helpful Tool ◽  
Phase Complex ◽  
Solid Phase Radioimmunoassay ◽  
Sepharose 4B

The development of a solid-phase radioimmunoassay procedure for the detection of Candida albicans antigens in serum of mice is described. Antibodies against C. albicans that were used in the radioimmunoassay procedure were partially purified from immune serum by a C. albicans antigen-coupled affinity column. Elution of anti-C. albicans antibodies from the column was by glucose and mannose; 4 mg of protein was recovered per ml, which contained 50% of the candidal agglutinin activity of immune serum. Also, 81% of the protein (partially purified antibody) recovered was adsorbed by whole C. albicans cells. Anti-C. albicans antibodies were either coupled to Sepharose 4B for use as the solid phase to bind candidal antigen in serum of infected animals, or radioiodinated (125I) for use as a tracer molecule to bind to the candidal antigen solid-phase complex. Although control experiments indicated that at least 100 ng of candidal antigen should be present in a serum specimen for a positive radioimmunoassay test, candidal antigenemia was detected in 70.4% of infected mice even in cases where blood cultures for C. albicans were negative. With further refinement and adaptability to human serum, the radioimmunoassay test may become a helpful tool for use in the diagnosis of systemic candidiasis.

scholarly journals Chemical bath synthesis of metal chalcogenide films. Part 41. Hydrochemical deposition of thin films of cadmium selenide by sodium selenosulfate

2019 ◽  
Vol 59 (9) ◽  
pp. 29-39
Author(s):  
Andrey V. Pozdin ◽  
◽  
Daria D. Smirnova ◽  
Larisa N. Maskaeva ◽  
Gennady L. Rusinov ◽  
...  
Keyword(s):  
Thin Films ◽  
Cadmium Selenide ◽  
Chemical Bath Deposition ◽  
Solid Phase ◽  
Complex Compounds ◽  
Cadmium Complex ◽  
Electron Microscopic ◽  
Glass Substrates ◽  
Formation Conditions ◽  
Ph Range

The group II-VI semiconductor materials including Cadmium Selenide (CdSe) thin films are widely used in many fields of science and technology, in particular in optoelectronics, nanoelectronics and solar energy. Chemical bath deposition (CBD) represents the simplest and the most available technique for deposition of semiconducting layers. CBD is characterized by deletion of toxic gaseous precursors, operation at low temperature and using of inexpensive equipment. The ionic equilibriums in reaction mixture «CdCl2 – L − Na2SeSO3» (L− NH4OH or Na3C6H5¬O7 or mixture of NH4OH and Na3C6H5¬O7 ) were calculated in present work. The prevailing cadmium complex compounds were determined in appropriate for CBD of cadmium selenide films pH range. The main complex compounds inhibiting fast formation of cadmium selenide are Cd(OH)Cit^(2-) complex (in citrat- and ammonia-citrat mixtures) and 〖Cd(NH_3)〗_5^(2+) complex (in ammonia mixture). Also the boundary conditions of forming CdSe and Cd(OH)2 in reaction mixture were determined by thermodynamic calculation based on crystallization factor to estimate the formation conditions of main (CdSe) and impurity (Cd(OH)2) phases. The results of the calculations show that the solid phase of cadmium selenide is possible to form in pH range from 10 to 14. CdSe films were grown by chemical bath deposition on glass substrates at a temperature of 353 K. The thickness of films ranges from 100 to 220 nm. The grain size of films is about 30 nm which was determined by electron microscopic investigations. The elemental composition of cadmium selenide was defined by energy dispersive analysis; the ratio of cadmium and selenium is 1.03 : 1.16. The conductivity of n-type was determined by the sign of thermoelectromotive force.

Murine monoclonal antibody adsorbed onto vinylidene fluoride floccules used to eliminate antibody interference in "sandwich"-type immunoassays.

1989 ◽  
Vol 35 (8) ◽  
pp. 1743-1746 ◽  
Author(s):  
E S Newman ◽  
L A Moskie ◽  
R N Duggal ◽  
D M Goldenberg ◽  
H J Hansen
Keyword(s):  
Monoclonal Antibody ◽  
Vinylidene Fluoride ◽  
Solid Phase ◽  
Simple Procedure ◽  
False Negative ◽  
Igg Antibody ◽  
Negative Results ◽  
False Negative Results ◽  
Phase Complex ◽  
Sandwich Type

Abstract We have previously reported that human anti-mouse IgG antibody (HAMA) can cause false-positive and false-negative results in "sandwich"-type monoclonal antibody (MAb) assays. To eliminate HAMA interference in "sandwich"-type MAb assays, we investigated the use of MAb on solid-phase, vinylidene fluoride floccules, which we have previously used as a solid-phase second antibody for RIA. The simple procedure effectively removes greater than 95% of HAMA from the most positive serum we have obtained from patients hyperimmunized to murine MAb, and it allows for accurate quantification of carcinoembryonic antigen. The solid-phase complex, added to blood, effectively removes HAMA and (or) "HAMA-type" heterophilic antibody from the sera or plasma.

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