Day: October 14, 2022

Application of 7789-45-9In 2019 ,《Controlled Growth of Ultra-Thick Polymer Brushes via Surface-Initiated Atom Transfer Radical Polymerization with Active Polymers as Initiators》 appeared in Macromolecular Rapid Communications. The author of the article were Zeng, Yiyang; Xie, Lei; Chi, Fangting; Liu, Dejian; Wu, Haoyan; Pan, Ning; Sun, Guangai. The article conveys some information:

Polymer brushes exhibit functionalities useful for a large number of applications. Often these functionalities only emerge when the polymer brushes have a desired thickness. Here, a significant breakthrough is achieved in the synthesis of ultra-thick polymer brushes using polymer initiators in the approach of surface-initiated atom transfer radical polymerization, yielding polymer brushes with a controllable thickness up to 15.1 μm. This is reportedly the thickest polymer brush ever synthesized. This approach is applicable for several monomers such as acrylonitrile, Me acrylate, and styrene, and for other types of polymer substrates such as fibers. In the experiment, the researchers used many compounds, for example, Cupric bromide(cas: 7789-45-9Application of 7789-45-9)

Some reported applications of Cupric bromide(cas: 7789-45-9) are: catalyst in cross coupling reactions; co-catalyst in Sonogashira coupling; lewis acid in enantioselective addition of alkynes.Application of 7789-45-9

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Name: Cupric bromideIn 2020 ,《Sodium Vapor Active Element Excited by Nanosecond Optical Pulses》 was published in Atmospheric and Oceanic Optics. The article was written by Evtushenko, G. S.; Petukhov, T. D.; Sukhanov, V. B.; Troitskii, V. O.; Kuryak, A. N.; Trigub, M. V.. The article contains the following contents:

A possibility of lasing at resonant transitions upon active medium excitation by nanosecond pulses of different energy and spectrum has been exptl. studied. The medium was pumped using a dye laser and a CuBr laser. The emission on sodium D lines was detected when pumping by yellow CuBr laser light. The experimental process involved the reaction of Cupric bromide(cas: 7789-45-9Name: Cupric bromide)

Some reported applications of Cupric bromide(cas: 7789-45-9) are: catalyst in cross coupling reactions; co-catalyst in Sonogashira coupling; lewis acid in enantioselective addition of alkynes.Name: Cupric bromide

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

《ZnO-CuO Core-Hollow Cube Nanostructures for Highly Sensitive Acetone Gas Sensors at the ppb Level》 was written by Lee, Jae Eun; Lim, Chan Kyu; Park, Hyung Ju; Song, Hyunjoon; Choi, Sung-Yool; Lee, Dae-Sik. Category: copper-catalystThis research focused onzinc copper oxide shell hollow nanocube acetone gas sensor; acetone detection; hybrid nanostructure; metal oxide semiconductor; p−n junction; ultrasensitive gas sensor. The article conveys some information:

This paper presents a ZnO-CuO p-n heterojunction chemiresistive sensor that comprises CuO hollow nanocubes attached to ZnO spherical cores as active materials. These ZnO-CuO core-hollow cube nanostructures exhibit a remarkable response of 11.14 at 1 ppm acetone and 200°C, which is a superior result to those reported by other metal-oxide-based sensors. The response can be measured up to 40 ppb, and the limit of detection is estimated as 9 ppb. ZnO-CuO core-hollow cube nanostructures also present high selectivity toward acetone against other volatile organic compounds and demonstrate excellent stability for up to 40 days. The outstanding gas-sensing performance of the developed nanocubes is attributed to their uniform and unique morphol. Their core-shell-like structures allow the main charge transfer pathways to pass the interparticle p-p junctions, and the p-n junctions in each particle increase the sensitivity of the reactions to gas mols. The small grain size and high surface area of each domain also enhance the surface gas adsorption. In the experiment, the researchers used Bis(acetylacetone)copper(cas: 13395-16-9Category: copper-catalyst)

Bis(acetylacetone)copper(cas: 13395-16-9) catalyzes coupling and carbene transfer reactions. Metal acetylacetonates are used as catalysts for polymerization of olefins and transesterification. Category: copper-catalyst

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

《Influence of HMTA ligand in MMA AGET ATRP emulsion polymerization》 was written by Awad, Mohammed; Dhib, Ramdhane; Duever, Thomas. Application In Synthesis of Cupric bromide And the article was included in Journal of Applied Polymer Science in 2020. The article conveys some information:

Interactions of hexamethylenetetramine ligand in atom transfer radical polymerization initiated by activator generated by electron transfer were studied. Polymerization of Me methacrylate was done using two-step exptl. procedure in 2 L emulsion batch reactor at 50, 60, and 80°C. The selection of reactant ratios was quite challenging for a reactor of this size. Replicate runs were conducted for data reproducibility purpose. Gravimetry method and gel permeation chromatog. were used to determine monomer conversion, Mn, and PDI of polymer samples. PMMA produced was also characterized by means of dynamic light scattering, Fourier-transform IR spectroscopy and NMR spectroscopy. Results showed high monomer conversion up to 93% and Mn ranging 243-274 kg/mol with PDI from 1.45 to 1.60. Besides, combining HMTA with sodium dodecyl sulfate, an anionic surfactant, a well-controlled polymer with a lower Mn of 201 kg/mol and PDI of 1.56 was obtained in 3 h reaction time. The experimental process involved the reaction of Cupric bromide(cas: 7789-45-9Application In Synthesis of Cupric bromide)

Cupric bromide(cas: 7789-45-9) can be used as reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.Application In Synthesis of Cupric bromide

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

In 2019,Journal of Supercritical Fluids included an article by Camarillo, Rafael; Rizaldos, Daniel; Jimenez, Carlos; Martinez, Fabiola; Rincon, Jesusa. HPLC of Formula: 13395-16-9. The article was titled 《Enhancing the photocatalytic reduction of CO2 with undoped and Cu-doped TiO2 nanofibers synthesized in supercritical medium》. The information in the text is summarized as follows:

The photocatalytic reduction of CO2 with water vapor using titania nanofibers (TNFs) synthesized in supercritical medium has been assessed. TNFs have been produced from titanium isopropoxide (TTIP) precursor at different pressures (200-240 bar) and temperatures (40-80°C). Synthesized materials were later characterized by scanning and transmission electron microscopy, BET surface area anal., X-ray diffraction, and UV-vis diffuse reflectance spectroscopy. Better defined morphologies were obtained at the highest pressure and temperatures tested, so the catalyst synthesized at 240 bar and 60°C was doped with copper (0.4-2 weight %) in order to study the influence of metal doping on CO2 reduction All undoped and Cu-doped TNFs have been found to exhibit higher CO2 reduction rates than com. catalyst (P-25) and other TNF-based catalysts produced with traditional methods, although methane and CO remain the only two reaction products. Moreover, it has been found that copper doping improves CO2 conversion in comparison with the equivalent undoped catalyst. The experimental part of the paper was very detailed, including the reaction process of Bis(acetylacetone)copper(cas: 13395-16-9HPLC of Formula: 13395-16-9)

Bis(acetylacetone)copper(cas: 13395-16-9) is used as PVC stabilizer, and curing agents for epoxy resins, acrylic adhesives and silicone rubbers. It is also used as solvents, lubricant additives, paint drier, and pesticides.HPLC of Formula: 13395-16-9

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Obstals, Fabian; Witzdam, Lena; Garay-Sarmiento, Manuela; Kostina, Nina Yu.; Quandt, Jonas; Rossaint, Rolf; Singh, Smriti; Grottke, Oliver; Rodriguez-Emmenegger, Cesar published an article in 2021. The article was titled 《Improving Hemocompatibility: How Can Smart Surfaces Direct Blood To Fight against Thrombi》, and you may find the article in ACS Applied Materials & Interfaces.Formula: Br2Cu The information in the text is summarized as follows:

Nature utilizes endothelium as a blood interface that perfectly controls hemostasis, preventing the uncontrolled formation of thrombi. The management of pos. and neg. feedback that finely tunes thrombosis and fibrinolysis is essential for human life, especially for patients who undergo extracorporeal circulation (ECC) after a severe respiratory or cardiac failure. The exposure of blood to a surface different from healthy endothelium inevitably initiates coagulation, drastically increasing the mortality rate by thromboembolic complications. In the present study, an ultrathin antifouling fibrinolytic coating capable of disintegrating thrombi in a self-regulated manner is reported. The coating system is composed of a polymer brush layer that can prevent any unspecific interaction with blood. The brushes are functionalized with a tissue plasminogen activator (tPA) to establish localized fibrinolysis that solely and exclusively is active when it is required. This interactive switching between the dormant and active state is realized through an amplification mechanism that increases (pos. feedback) or restores (neg. feedback) the activity of tPA depending on whether a thrombus is detected and captured or not. Thus, only a low surface d. of tPA is necessary to lyse real thrombi. Our work demonstrates the first report of a coating that self-regulates its fibrinolytic activity depending on the conditions of blood. In the part of experimental materials, we found many familiar compounds, such as Cupric bromide(cas: 7789-45-9Formula: Br2Cu)

Some reported applications of Cupric bromide(cas: 7789-45-9) are: catalyst in cross coupling reactions; co-catalyst in Sonogashira coupling; lewis acid in enantioselective addition of alkynes.Formula: Br2Cu

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

In 2022,Li, Siyi; Ding, He; Chang, Jinhu; Dong, Shuming; Shao, Boyang; Dong, Yushan; Gai, Shili; He, Fei; Yang, Piaoping published an article in Journal of Colloid and Interface Science. The title of the article was 《Bimetallic oxide nanozyme-mediated depletion of glutathione to boost oxidative stress for combined nanocatalytic therapy》.Quality Control of Bis(acetylacetone)copper The author mentioned the following in the article:

Although nanocatalytic therapy has become an emerging strategy for tumor treatment, the therapeutic effects of reactive oxygen species (ROS)-mediated treatment are still seriously limited by the inherent flaws of the enzymic activities and the specific physicochem. properties of the tumor microenvironment (TME). Herein, we report an ultrasmall bimetallic oxide nanozyme (CuFe2O4@PEG, CFOs) for programmable multienzyme-like activities-primed combined therapy. Under the acidic condition, abundant highly toxic ROS can be generated through the peroxidase activity of CFOs with overexpressed hydrogen peroxide (H2O2) in the tumor. High metal ion utilization of bimetallic oxide nanozymes is related to the size effect and topol. structure. Furthermore, glutathione peroxidase activity-initiated depletion of GSH disrupts the intracellular antioxidant defense system and further amplifies the oxidative stress in turn. Subsequently, oxygen generation originating from the catalase activity of CFOs relieves tumor hypoxia and achieves exceptional TME-customized therapeutic effects. Notably, the high photothermal effect (η = 41.12%) of CFOs in the second near-IR biol. windows leads to the combinational inhibition of tumor growth. In summary, this report provides a paradigm for the rational design of TME-responsive and ROS-mediated nanocatalytic treatment, which is promising for achieving superior therapeutic efficiency. After reading the article, we found that the author used Bis(acetylacetone)copper(cas: 13395-16-9Quality Control of Bis(acetylacetone)copper)

Bis(acetylacetone)copper(cas: 13395-16-9) is used as PVC stabilizer, and curing agents for epoxy resins, acrylic adhesives and silicone rubbers. It is also used as solvents, lubricant additives, paint drier, and pesticides.Quality Control of Bis(acetylacetone)copper

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Formula: C10H16CuO4In 2021 ,《Spray synthesis of CuFeO2 photocathodes and in-operando assessment of charge carrier recombination》 was published in Journal of Physical Chemistry C. The article was written by Boudoire, Florent; Liu, Yongpeng; Le Formal, Florian; Guijarro, Nestor; Lhermitte, Charles R.; Sivula, Kevin. The article contains the following contents:

Semiconducting delafossite-phase CuFeO2 is a promising photocathode material for solar-driven hydrogen production given its suitable energy levels and established robustness for photoelectrochem. water reduction Nevertheless, reported methods for preparing CuFeO2 thin films are cumbersome, and an explanation for the observed poor performance of this material remains under debate. Herein, a facile and scalable deposition method based on aerosol-assisted chem. vapor deposition of CuFeO2 photocathodes is reported. Optimization of deposition conditions reveals that larger grain size is beneficial for photoelectrochem. operation. Extensive photoelectrochem. testing including illumination and potential modulation spectroscopy of these photocathodes under nonsacrificial operation conditions indicates solar photocurrent densities up to 2.5 mA cm-2. The bulk charge separation efficiency and the interfacial charge injection efficiency at +0.4 V vs RHE are estimated to be 11% and 0.8%, resp. This establishes that, while bulk photogenerated charge carrier recombination in CuFeO2 remains an important loss, the performance bottleneck of CuFeO2 for H2 production is clearly due to surface recombination. In the experimental materials used by the author, we found Bis(acetylacetone)copper(cas: 13395-16-9Formula: C10H16CuO4)

Bis(acetylacetone)copper(cas: 13395-16-9) is used as PVC stabilizer, and curing agents for epoxy resins, acrylic adhesives and silicone rubbers. It is also used as solvents, lubricant additives, paint drier, and pesticides.Formula: C10H16CuO4

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

《Binary Superlattices of Infrared Plasmonic and Excitonic Nanocrystals》 was published in ACS Applied Materials & Interfaces in 2020. These research results belong to Brittman, Sarah; Mahadik, Nadeemullah A.; Qadri, Syed B.; Yee, Patrick Y.; Tischler, Joseph G.; Boercker, Janice E.. Name: Bis(acetylacetone)copper The article mentions the following:

Self-assembled superlattices of nanocrystals offer exceptional control over the coupling between nanocrystals, similar to how solid-state crystals tailor the bonding between atoms. By assembling nanocrystals of different properties (e.g., plasmonic, excitonic, dielec., or magnetic), we can form a wealth of binary superlattice metamaterials with new functionalities. Here, we introduce IR plasmonic Cu2-xS nanocrystals to the limited library of materials that have been successfully incorporated into binary superlattices. We are the first to create a variety of binary superlattices with large excitonic (PbS) nanocrystals and small plasmonic (Cu2-xS) nanocrystals, both resonant in the IR. Then, by controlling the surface chem. of large Cu2-xS nanocrystals, we produced structurally analogous superlattices of large Cu2-xS and small PbS nanocrystals. Transmission electron microscopy (TEM) and grazing-incidence small-angle X-ray scattering (GISAXS) were used to characterize both types of superlattices. Furthermore, our unique surface modification of the large Cu2-xS nanocrystals also prevented them from chem. quenching the photoluminescence of the PbS nanocrystals, which occurred when the PbS nanocrystals were mixed with unmodified Cu2-xS nanocrystals. These synthetic achievements create a set of binary superlattices that can be used to understand how IR plasmonic and excitonic nanocrystals couple in a variety of symmetries and stoichiometries. In the experiment, the researchers used Bis(acetylacetone)copper(cas: 13395-16-9Name: Bis(acetylacetone)copper)

Bis(acetylacetone)copper(cas: 13395-16-9) catalyzes coupling and carbene transfer reactions. Metal acetylacetonates are used as catalysts for polymerization of olefins and transesterification. Name: Bis(acetylacetone)copper

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

《Coupling interface structure in NixS/Cu5FeS4 hybrid with enhanced electrocatalytic activity for alkaline hydrogen evolution reaction》 was written by Yuan, Fei; Liu, Yang; Ma, Ping; Wang, Shuo; Yang, Guangxue; Qin, Jiaheng; Luo, Yutong; Luo, Shicheng; Ma., Jiantai. Quality Control of Bis(acetylacetone)copper And the article was included in Journal of Colloid and Interface Science in 2020. The article conveys some information:

Bornite (Cu5FeS4) exhibits great potential for the alk. hydrogen evolution reaction (HER) and few studies have been conducted on its electrocatalytic activity. Herein, we successfully fabricate NixS/Cu5FeS4hybrid catalyst with interface structure between NixS nanoparticles (NPs) and Cu5FeS4 NPs. The NixS/Cu5FeS4hybrid catalyst exhibits favorable HER performances in 1.0 M KOH electrolyte and demonstrates smaller overpotential and lower Tafel slope than bare NixS NPs and Cu5FeS4 NPs. The remarkable HER performances are attributed to the strongly coupling interface structure between NixS NPs and Cu5FeS4 NPs, which leads to synergistic effect optimizing the HER activity and enhancing the charge transfer during catalytic process. This work provides a promising strategy for the construction of Cu5FeS4-based hybrid catalyst and its application in energy systems. In the part of experimental materials, we found many familiar compounds, such as Bis(acetylacetone)copper(cas: 13395-16-9Quality Control of Bis(acetylacetone)copper)

Bis(acetylacetone)copper(cas: 13395-16-9) is used as PVC stabilizer, and curing agents for epoxy resins, acrylic adhesives and silicone rubbers. It is also used as solvents, lubricant additives, paint drier, and pesticides.Quality Control of Bis(acetylacetone)copper

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”