Tag: 500-600

《Blue Light-Gated Reversible Silver Nanozyme Reaction Networks that Achieve Life-like Adaptivity》 was written by Jiang, Zhengxing; Li, Hua; Deng, Yuequan; He, Yi. Synthetic Route of C18H24N6O6S4 And the article was included in ACS Sustainable Chemistry & Engineering on April 6 ,2020. The article conveys some information:

Life is preserved by complex enzymic reaction systems. Inspired by life, here the authors report on the first example to fabricate blue light-gated reversible silver nanozyme reaction networks that achieve life-like adaptivity. Upon blue light excitation, silver nanoparticles (AgNPs) display oxidase-like activity in the presence of Cl- as a cofactor. The addition of Cl- promotes the separation between hot holes and electrons that are generated by excited-state surface plasmon of AgNPs, inducing the generation of highly reactive hydroxyl and superoxide anion radicals. They oxidize colorless 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)diammonium salt (ABTS) to yield green ABTS radicals (ABTS•+). It is shown that ABTS•+ is able to be reduced by AgNPs to regenerate ABTS when the blue light is turned off, and the reaction system returns to its initial state, which is the typical feature of the artificial adaptive system. The dynamic process of the adaptive system is tunable by changing the concentrations of AgNPs and Cl-, and it possesses excellent recyclable performance, which can be repeated at least six times. Overall, the silver nanozyme reaction networks are capable of responding to blue light stimuli and renewing by recycling to the initial state without blue light irradiation Inspired by enzymic reaction systems, blue light-gated reversible silver nanozyme reaction networks that achieve life-like adaptivity are successfully constructed. After reading the article, we found that the author used ABTS Diammonium(cas: 30931-67-0Synthetic Route of C18H24N6O6S4)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Nitrous acid converts secondary amines (aliphatic or aromatic) to N-nitroso compounds (nitrosamines): R2NH + HNO2 → R2N―NO. Some nitrosamines are potent cancer-inducing substances, and their possible formation is a serious consideration when nitrites, which are salts of nitrous acid, are present in foods or pharmaceutical preparations. Tertiary amines give rise to nitrosamines more slowly; an alkyl group is eliminated as an aldehyde or ketone, along with nitrous oxide, N2O.Synthetic Route of C18H24N6O6S4

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

HPLC of Formula: 30931-67-0On October 31, 2020 ,《Enzymatic depolymerization of industrial lignins by laccase-mediator systems in 1,4-dioxane/water》 appeared in Biotechnology and Applied Biochemistry. The author of the article were Dillies, Justine; Vivien, Celine; Chevalier, Mickael; Rulence, Alexandre; Chataigne, Gabrielle; Flahaut, Christophe; Senez, Vincent; Froidevaux, Renato. The article conveys some information:

Lignin is the second most abundant polymer after cellulose in lignocellulosic biomass. Its aromatic composition and recalcitrant nature make its valorization a major challenge for obtaining low mol. weight aromatics compounds with high value-added from the enzymic depolymerization of industrial lignins. The oxidation reaction of lignin polymer using laccases alone remains inefficient. Therefore, researches are focused on the use of a laccase-mediator system (LMS) to facilitate enzymic depolymerization Until today, the LMS system was studied using water-soluble lignin only (com. lignins, modified lignins, or lignin model compounds). This work reports a study of three LMS systems to depolymerize the three major industrial lignins (organosolv lignin, Kraft lignin, and sodium lignosulfonate). We show that an enzymic depolymerization of these lignins can be achieved by LMS using laccase from Trametes versicolor, 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt as mediator and a cosolvent (25% of 1,4-dioxane) to enhance the solubilization of lignins. In the part of experimental materials, we found many familiar compounds, such as ABTS Diammonium(cas: 30931-67-0HPLC of Formula: 30931-67-0)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. The methylamines occur in small amounts in some plants. Many polyfunctional amines (i.e., those having other functional groups in the molecule) occur as alkaloids in plants—for example, mescaline, 2-(3,4,5-trimethoxyphenyl)ethylamine; the cyclic amines nicotine, atropine, morphine, and cocaine; and the quaternary salt choline, N-(2-hydroxyethyl)trimethylammonium chloride, which is present in nerve synapses and in plant and animal cells.HPLC of Formula: 30931-67-0

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

《Zeolite/Chitosan/Gelatin Films: Preparation, Supercritical CO2 Processing, Characterization, and Bioactivity》 was written by Pajnik, Jelena; Dikic, Jelena; Milovanovic, Stoja; Milosevic, Milena; Jevtic, Sanja; Lukic, Ivana. Computed Properties of C18H24N6O6S4 And the article was included in Macromolecular Materials and Engineering on August 31 ,2022. The article conveys some information:

Chitosan/gelatin and chitosan/gelatin/zeolite films prepared by solvent casting method are impregnated with a mixture of thymol and carvacrol using a green solvent, supercritical carbon dioxide at 35°C and 30 MPa, during 18 h. Proposed method enables preparation of biocompatible and biodegradable blends with strong antioxidant and antibacterial activity, whereby amounts of loaded thymol/carvacrol (TC) mixture are in the range from 3.3% to 6%. After initial burst release, both types of films exhibit gradual release of bioactive compounds, with around 72% and 96% of impregnated TC mixture released in water and phosphate buffered saline solution (pH 7.4) during tested period of 10 days, resp. Results of water vapor transmission rate (>76 g m-2 day-1) confirm that prepared composites are suitable for wound dressing application. Thermal anal. shows superior properties of prepared TC loaded films compared to control samples. In addition, mech. and structural properties, as well as solubility and swelling behavior of the obtained films are investigated in detail.ABTS Diammonium(cas: 30931-67-0Computed Properties of C18H24N6O6S4) was used in this study.

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Primary amines having a tertiary alkyl group (R3CNH2) are difficult to prepare with most methods but are made industrially by the Ritter reaction. In this method a tertiary alcohol reacts with hydrogen cyanide (HCN) in the presence of a concentrated strong acid; a formamide, RNH―CHO, is formed first, which then undergoes hydrolysis.Computed Properties of C18H24N6O6S4

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Wang, Dan; Lou, Jiangfei; Xu, Jin; Yuan, Jiugang; Wang, Qiang; Wang, Ping; Fan, Xuerong published an article in Environmental Science and Pollution Research. The title of the article was 《Degradation of octylphenol polyethoxylates with a long ethoxylate chain using the laccase-mediated systems》.Reference of ABTS Diammonium The author mentioned the following in the article:

Alkylphenol polyethoxylates (APEOn) are the second-largest category of com. nonionic surfactants, which are difficult to degrade naturally in the environment. This study examined the degradation of octylphenol polyethoxylate (OPEOn) by laccase and its laccase-mediated systems. The results showed that OPEOn was poorly degraded by laccase alone. 2, 2′-azino-bis [3-ethylbenzothiazoline-6-sulfonic acid] (ABTS), 1-hydroxybenzotriazole (HBT), and 2, 2, 6, 6-tetramethylpiperidine-1-oxyl (TEMPO) were selected as the redox mediators. Exptl. results also indicated that 52.4% of the initial OPEOn amount was degraded by laccase in the presence of TEMPO. The degradation efficiency was analyzed using high-performance liquid chromatog. Furthermore, the structural characteristics of the degradation products were measured using matrix-assisted laser desorption/ionization-time of flight mass spectrometry and NMR spectroscopy, and it could be found that the laccase-TEMPO system could gradually shorten the ethoxylate chain by oxidizing the primary hydroxyl group of OPEOn, thereby degrading the OPEOn of the macromol. into small mols. The maximum of the ion peak distributions of OPEOn decreased from n = 8 finally down to 3. The novel enzymic system introduced by this study will become a promising alternative method for high-efficiency APEOn conversion and had great potential value in wastewater treatment. The results came from multiple reactions, including the reaction of ABTS Diammonium(cas: 30931-67-0Reference of ABTS Diammonium)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Large quantities of aliphatic amines are made synthetically. The most widely used industrial method is the reaction of alcohols with ammonia at a high temperature, catalyzed by metals or metal oxide catalysts (e.g., nickel or copper). Mixtures of primary, secondary, and tertiary amines are thereby produced.Reference of ABTS Diammonium

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

HajKacem, Sihem; Galai, Said; Hernandez Fernandez, Francisco Jose; Perez de los Rios, Antonia; Smaali, Issam; Quesada Medina, Joaquin published an article on January 31 ,2020. The article was titled 《Bioreactor Membranes for Laccase Immobilization Optimized by Ionic Liquids and Crosslinking Agents》, and you may find the article in Applied Biochemistry and Biotechnology.HPLC of Formula: 30931-67-0 The information in the text is summarized as follows:

A novel concept of membrane bioreactor based on polymeric ionic liquids laccase membrane has been implemented in batch process for decolorization of the anthraquinonic dye Remazol Brillant Blue R (RBBR). New laccase immobilization strategy has been optimized by casting the enzyme into a polymeric inclusion membrane (PIM) using ionic liquids (ILs) and polyvinyl chloride (PVC) leading to laccase polymeric IL membrane (PILM). Four different ILs (1-octyl-3-metylimidazolium bis(trifluoromethylsulfonyl)imide, [OMIM][NTF2]; cholinium bis(trifluoromethylsulfonyl)imide, [Ch ol][NTF2]; cholinium dihydrogenphosphate, [Chol][H2PO4] and hydroxyethylammonium formate, [HEA][Fo]) have been screened and mixed to constitute the active phase of the support of PIM. This strategy has been fully succeeded since high laccase immobilization rates were recorded (about 98%) when using the optimal mixture containing three ILs (45% [OMIM][NTf2]/5% [Chol][NTf2]/2.5% [HEA][Fo]) and supplemented by 0.5% glutaraldehyde. It was found that such mixture contributes to increase the stability and reusability of laccase-PILM during eight successive assays in a batch discontinued stirred reactor. Decolorization rate of 75% has been reached in the batch decolorization process of RBBR with high reusability yield. In the part of experimental materials, we found many familiar compounds, such as ABTS Diammonium(cas: 30931-67-0HPLC of Formula: 30931-67-0)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Aniline, ethanolamines, and several other amines are major industrial commodities used in making rubber, dyes, pharmaceuticals, and synthetic resins and fibres and for a host of other applications. Most of the numerous methods for the preparation of amines may be broadly divided into two groups: (1) chemical reduction (replacement of oxygen with hydrogen atoms in the molecule) of members of several other classes of organic nitrogen compounds and (2) reactions of ammonia or amines with organic compounds.HPLC of Formula: 30931-67-0

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Name: ABTS DiammoniumOn November 30, 2021 ,《Extraction optimization of polysaccharides from Gougunao tea and assessment of the antioxidant and hypoglycemic activities of its fractions in vitro》 appeared in Bioactive Carbohydrates and Dietary Fibre. The author of the article were Deng, Qihuan; Wang, Wenjun; Zhang, Qingfeng; Chen, Jiguang; Zhou, Huan; Meng, Wenya; Li, Jingen. The article conveys some information:

The extraction optimization, characterization, antioxidant activities and hypoglycemic in vitro of polysaccharides from Gougunao tea (GTP) were investigated in this study. The extraction conditions were optimized as extraction time of 3.2 h, solid-liquid ratio of 1:30 (g/mL) and extraction temperature of 95 °C, reaching a maximum yield of 10.78 0.21%. Three new fractions (GTP40, GTP60 and GTP80) were separated from GTP by gradient concentrations of ethanol. Their weight-average mol. weight, number-average mol. weight and polydispersity index were determined to be 48286-195451 Da, 33946-118948 Da, 1.422-1.643 by the high-performance gel permeation chromatog. (HPGPC). Chem. anal. revealed that they were all composed of arabinose, galactose, ribose, glucose, rhamnose, manose, xylose, glucuronic acid, and galacturonic acid with different molar ratios, as well as a small amount of proteins. What′s remarkable is that the antioxidant and hypoglycemic activities in vitro of them were all in the order of GTP40>GTP60>GTP80 in a concentration-dependent manner. The half inhibition concentrations (IC50) of GTP40 for 2,2-Diphenyl-1-picrylhydrazyl radical, 2,2′-Azino-bis (3-ethylbenzothiazoline- 6-sulfonic acid) radical, hydroxyl radical were 0.066 mg/mL, 0.255 mg/mL and 3.610 mg/mL, and for a-amylase and a-glucosidase were 1.271 mg/mL and 0.013 mg/mL, resp. It will provide a theor. basis for the further utilization of polysaccharides from Gougunao tea. In the experiment, the researchers used many compounds, for example, ABTS Diammonium(cas: 30931-67-0Name: ABTS Diammonium)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Amine, any member of a family of nitrogen-containing organic compounds that is derived, either in principle or in practice, from ammonia (NH3). Naturally occurring amines include the alkaloids, which are present in certain plants; the catecholamine neurotransmitters (i.e., dopamine, epinephrine, and norepinephrine); and a local chemical mediator, histamine, that occurs in most animal tissues.Name: ABTS Diammonium

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Ghavidel Hajiagha, N.; Mahmoudi, A.; Sazegar, M. Reza; Pouramini, Mostafa M. published an article on January 15 ,2019. The article was titled 《Synthesis of cobalt-modified MSN as a model enzyme: Evaluation of the peroxidatic performance》, and you may find the article in Microporous and Mesoporous Materials.Safety of ABTS Diammonium The information in the text is summarized as follows:

The cobalt incorporated mesoporous silica nanomaterials (Co-MSN) with different ratios of Si/Co in the framework were synthesized. The as-obtained products were characterized by x-ray diffraction anal. (XRD), FTIR spectroscopy (FTIR), x-ray fluorescence (XRF), field emission SEM (FESEM), transmission electron microscope (TEM), N2 adsorption/desorption (BET) and UV-visible spectroscopic techniques. The effect of the various content of Co incorporated into the framework on the catalytic activity was studied. The Co-MSN samples exhibited an excellent catalytic activity toward the reduction of hydrogen peroxide (H2O2) and the oxidation of 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) as a chromogenic substrate and followed Michaelis-Menten kinetics. It means that they have intrinsic peroxidase-like activity. The Co-MSN catalyst with Si/Co=75 (as the optimum ratio), has the higher affinity to ABTS and H2O2 and higher catalytic efficiency. These features made this nanocatalyst suitable to apply for the determination of H2O2 and glucose. The linear range for detecting H2O2 was from 22.5μM to 0.2mM with a detection limit of 6.7μM. Coupled with glucose oxidase, the Co-MSN(75) was successfully used for the determination of glucose with the linear range of 11.6μM-0.1mM and a detection limit of 3.5μM. In addition to this study using ABTS Diammonium, there are many other studies that have used ABTS Diammonium(cas: 30931-67-0Safety of ABTS Diammonium) was used in this study.

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Hydrogen peroxide (H2O2) and peroxy acids generally add an oxygen atom to the nitrogen of amines. With primary amines, this step is normally followed by further oxidation, leading to nitroso compounds, RNO, or nitro compounds, RNO2. Secondary amines are converted to hydroxylamines, R2NOH, and tertiary amines to amine oxides, R3NO.Safety of ABTS Diammonium

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Name: ABTS DiammoniumOn November 30, 2019 ,《The multicopper oxidase of Mycobacterium tuberculosis (MmcO) exhibits ferroxidase activity and scavenges reactive oxygen species in activated THP-1 cells》 appeared in International Journal of Medical Microbiology. The author of the article were Kinkar, Eyad; Kinkar, Ayat; Saleh, Mazen. The article conveys some information:

The MmcO protein of Mycobacterium tuberculosis is a membrane-associated multicopper oxidase. Its natural substrate(s) and its role in pathogenesis are not well characterized. A recent report proposes that MmcO contributes to copper resistance in M. tuberculosis during infection. We have expressed and reconstituted the active enzyme from inclusion bodies in E. coli. MmcO exhibits maximal activity against the exptl. substrate 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) or ABTS, at pH 4. The enzyme also exhibits ferroxidase activity at pH 4. Most notable was the finding that MmcO is able to scavenge the reactive oxygen species (ROS) generated by the xanthine/xanthine oxidase enzyme system. This ROS scavenging activity of MmcO was also evident against ROS generated by THP-1 cells. We propose that MmcO protects M. tuberculosis during infection against ROS attack in addition to providing copper resistance to the pathogen. The results came from multiple reactions, including the reaction of ABTS Diammonium(cas: 30931-67-0Name: ABTS Diammonium)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Amines have a free lone pair with which they can coordinate to metal centers. Amine–metal bonds are weaker because amines are incapable of backbonding, but they are still important for sensing applications.While stronger than hydrogen bonds, amine–metal bonds are still weaker than both covalent and ionic bonds.Name: ABTS Diammonium

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

《Effect of simultaneous dual-frequency ultrasound aided ethanolic pretreatment on drying kinetics, bioactive compounds, antioxidant activity, and physicochemical properties of apple slices using pulsed vacuum dryer》 was published in Journal of Food Process Engineering in 2020. These research results belong to Amanor-Atiemoh, Robert; Zhou, Cunshan; Mujumdar, Arun; Osae, Richard; Taiye Mustapha, Abdullateef; Wahia, Hafida; Sampson, Gilbert; Amoa-Owusu, Abigail; Ma, Haile. Reference of ABTS Diammonium The article mentions the following:

This work aims at investigating effect of different pretreatments and varied temperature on the drying kinetics, bioactive compounds, antioxidant activity, microstructure and functional group of apple slices using pulsed vacuum dryer. Pretreated apple slices (Ethanol, US + W, and US + E) dried at varied temperature (60, 70, and 80°C) were analyzed to determine total phenolic content (TPC), total flavonoid content (TFC), 1,1-diphenyl-2-picrylhydrazyl (DPPH+), 2,2-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid color, microstructure and FT-IR spectroscopy. The findings revealed that US + E pretreatment significantly decreased drying time. US + E pretreatment retained TPC, TFC, DPPH+ and ABTS+ than Ethanol, US + W, and control and was further corroborated by the observed peaks as revealed by the FT-IR spectroscopy. However, drying often leads to a reduction in quality parameters as well as degradation of nutritional components of the apple. Novel pretreatment techniques like ultrasonic aided ethanolic pretreatment preceding to apple drying provides an added advantage over conventional drying methods in that it reduces dehydration time as a result of faster moisture removal, lowers energy consumption, improves process efficiency leading to industrial competiveness and it also preserves the nutritional and sensorial parameters of dried apple slices. In addition to this study using ABTS Diammonium, there are many other studies that have used ABTS Diammonium(cas: 30931-67-0Reference of ABTS Diammonium) was used in this study.

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Amines characteristically form salts with acids; a hydrogen ion, H+, adds to the nitrogen. With the strong mineral acids (e.g., H2SO4, HNO3, and HCl), the reaction is vigorous. Salt formation is instantly reversed by strong bases such as NaOH. Neutral electrophiles (compounds attracted to regions of negative charge) also react with amines; alkyl halides (R′X) and analogous alkylating agents are important examples of electrophilic reagents.Reference of ABTS Diammonium

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Meng, Shuaiqi; Guo, Jia; Nie, Kaili; Schwaneberg, Ulrich; Tan, Tianwei; Xu, Haijun; Liu, Luo published an article on February 28 ,2019. The article was titled 《High throughput screening method for engineering P450 towards terminal hydroxylation of fatty acids》, and you may find the article in Journal of Biobased Materials and Bioenergy.Safety of ABTS Diammonium The information in the text is summarized as follows:

Terminal ω-hydroxy fatty acids are important industrial precursors for the synthesis of polyhydroxy fatty acids, nylons, and lactones. The cytochrome P 450 monooxygenases are able to catalyze hydroxylation of fatty acids for synthesis of terminal ω-hydroxy fatty acids. Directed evolution is the promising strategy to engineer the P 450 and shift its regioselectivity towards the terminal position. In this article, a high throughput screening method to detect terminal ω-hydroxy fatty acids for identifying P 450 variants with selectivity for terminal oxidation was developed and validated. A ω-hydroxy fatty acids specific fatty alc. oxidase (FAO) from Candida tropicalis was applied to quant. detect the products. The formation of hydrogen peroxide during the process of oxidation of ω-hydroxy fatty acids is coupled with horse radish peroxidase (HRP) for color reaction with the chromogenic substrate of 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid; ABTS) in 96 multi-well plates. The FAO-ABTS system was successfully applied to the detect the P 450 BM3 mutant capable of catalyzing the terminal ω-hydroxylation of pentadecanoic acid and palmitic acid. The results came from multiple reactions, including the reaction of ABTS Diammonium(cas: 30931-67-0Safety of ABTS Diammonium)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. The reaction of alkyl halides, R―X, where X is a halogen, or analogous reagents with ammonia (or amines) is useful with certain compounds. Not all alkyl halides are effective reagents; the reaction is sluggish with secondary alkyl groups and fails with tertiary ones. Its usefulness is largely confined to primary alkyl halides (those having two hydrogen atoms on the reacting site).Safety of ABTS Diammonium

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica