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261
Alkene Cleavage Catalysed by Heme and Nonheme Enzymes: Reaction Mechanisms and Biocatalytic Applications
Published 2012-01-01“…Ozonolysis requires harsh conditions (−78°C, for a safe process) and reducing reagents in a molar amount, whereas the use of poisonous heavy metals such as Cr, Os, or Ru as catalysts is additionally plagued by low yield and selectivity. …”
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262
RESEARCH OF THE CLEANING PROCESS REGULARITIES FOR THE MODEL WASTE WATER SYSTEMS WITH THE «VODOKANALNY» POLYACRYLAMIDE FLOCULANT
Published 2020-08-01“…Graphical dependences of the described quantities on the concentration of introduced reagents are given. The clarification rates of suspensions in the presence of polyelectrolytes were investigated. …”
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263
Using of aluminium slags and products of their pro‑cessing in metallurgical production
Published 2021-12-01“…It has been shown that the bulk of reagents derived from secondary aluminum production wastes (APWs) are used with increased sodium and potassium chloride. …”
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264
Synthesis and Reactions of Five-Membered Heterocycles Using Phase Transfer Catalyst (PTC) Techniques
Published 2014-01-01“…They are known to accelerate reaction rates by facilitating formation of interphase transfer of species and making reactions between reagents in two immiscible phases possible. Application of PTC instead of traditional technologies for industrial processes of organic synthesis provides substantial benefits for the environment. …”
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265
Environmental Method to Determine Dopamine and Ascorbic Acid Simultaneously via Derivative Spectrophotometry
Published 2013-01-01“…These obtained methods could be used to determine both reagents in real and synthesized samples.…”
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266
Syntheses of Marine Natural Products via Matteson Homologations and Related Processes
Published 2025-01-01“…In contrast, in Aggarwal’s lithiation-borylation strategy, new chiral auxiliary reagents must be used in each reaction step, which on the other hand allows the individual insertion of the desired stereogenic centers. …”
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267
Miniaturization and characterization of patient derived hepatocellular carcinoma tumor organoid cultures for cancer drug discovery applications
Published 2025-01-01“…Hoechst and live/dead reagents provided organoid numbers and viability comparisons. …”
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268
Syntheses of 2-(6’-Fluorobenzothiazol-2’-ylamino)-4, 6-(disubstituted thiouriedo)-1,3-pyrimidine Derivatives as Antimicrobial Agents
Published 2011-01-01“…A new series of 1,3-pyrimidine derivatives (3a-f) have been synthesized by reacting 2,4,6-Trichloropyrimidine with nucleophilic reagents 2-amino-6-fluorobenzothiazole (1) in the presence of acetone. …”
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269
Theoretical Analysis of the Mechanism of the 1,3-Dipolar Cycloaddition of Benzodiazepine with N-Aryl-C-ethoxycarbonylnitrilimine
Published 2020-01-01“…The two C=N sites of 2,4-dimethyl-3H-1,5-benzodiazepine are easily reached by the dipole, and the energy barrier between the reagents and the transition states is too weak. The secondary barriers are traversed by the heat released in the reaction medium after the crossing of the first TS, which facilitates the addition reaction and does not require high energy. …”
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270
Effect of PdS on Photocatalytic Hydrogen Evolution of Nanostructured CdS under Visible Light Irradiation
Published 2013-01-01“…With PdS highly dispersed in the CdS nanostructures, the photoactivity was evaluated by hydrogen evolution from aqueous solution containing Na2S/Na2SO3 as sacrificial reagents under visible light irradiation. When the concentration of PdS was 1% by weight, PdS/CdS, prepared by the in situ coprecipitation, showed the highest photocatalytic activity, while that prepared by hydrothermal method showed the most stability for hydrogen evolution. …”
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271
Application of Statistical Experimental Design and Surface Plot Technique to Optimize Oxygenated Apatite Synthesis
Published 2020-01-01“…An experimental design is applied to precise the influence of the synthesis parameters (pH of the reaction medium, atomic ratio Ca/P of the reagents, concentration of the calcium solution (Ca2+), temperature of the reaction medium (T), and duration of the reaction (D)) on the chemical composition (Ca/P molar ratio, % O2, and % O22−). …”
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272
Research Progress on Mechanoenzymatic Reactions
Published 2024-12-01“…Organic synthesis reactions typically use a large amount of chemical reagents and require strict reaction conditions and complex downstream operations to separate and purify products, which should be used sparingly or not at all in foods. …”
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273
Application of Autofluorescence Endoscopy for Colorectal Cancer Screening: Rationale and an Update
Published 2012-01-01“…Autofluorescence endoscopy (AFE) can detect slight alterations in their distribution and concentration during the colorectal carcinogenesis process and, thus facilitate noninvasive screening colonoscopies without the need for fluorescent substances or staining reagents to be administered. While detecting faint autofluorescence intensity by conventional fiberoptic endoscopy remains challenging, the latest AFE system with high-resolution videoendoscope capabilities enables such detection by using a false-color display algorithm. …”
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274
Synthesis and evaluation of antitumor activity of new 4-substituted thieno[3,2-d]pyrimidine and thienotriazolopyrimidine derivatives
Published 2017-12-01“…In addition, compound 12 was used to synthesize thieno[1,2,4] triazolopyrimidine derivatives 14 and 15 and 3-methyl-2-(methyl-sulfonyl)-6-phenyl-thieno[3,2-d]pyrimidin-4(3H)-one (16) through the reaction with the respective reagents. Moreover, the reaction of 16 with 4-phenylenediamine gave 2-[(4-aminophenyl)-amino]-3-methyl-6-phenyl-thieno[3,2-d] pyrimidin-4(3H)-one (17), which reacted with methanesulfonyl chloride to afford N-{4-[(3-methyl-4-oxo-6-phenyl-3H,4H- -thieno[3,2-d]pyrimidin-2-yl)-amino]phenyl}-methanesulfonamide (18). …”
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275
Technological Cooperation Networks at Bio-Manguinhos: the Role of Information and Communication Technologies
Published 2015-01-01“…This article identifies and discusses the contribution of information and communication technologies (ICTs) to the technological cooperation projects of Bio-Manguinhos, a pharmaceutical manufacturer that belongs to Osvaldo Cruz Foundation (FIOCRUZ), responsible for producing vaccines, reagents and biopharmaceuticals, with priority on meeting the needs of the Brazilian public health system. …”
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276
Ultrasonic-Assisted Synthesis of Two t-Butoxycarbonylamino Cephalosporin Intermediates on SiO2
Published 2016-01-01“…The advantages of this reaction route including the usage of economical reagents and mild reaction conditions and high isolated yield make the two significant t-butoxycarbonylamino cephalosporin intermediates possible in large-scale production.…”
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277
UV Dose Governs UV-Polymerized Polyacrylamide Hydrogel Modulus
Published 2017-01-01“…This method, while generally well accepted, has its drawbacks: long polymerization times, unstable and toxic reagents, and tedious preparation. Alternatively, PAA gels could be made by free radical polymerization (FRP) using ultraviolet (UV) photopolymerization, a method which is quicker, less tedious, and less toxic. …”
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278
Advanced delivery systems for gene editing: A comprehensive review from the GenE-HumDi COST Action Working Group
Published 2025-03-01“…Clinical application of this technology requires the delivery of the editing reagents to transplantable cells ex vivo or to tissues and organs for in vivo approaches, often representing a barrier to achieving the desired editing efficiency and safety. …”
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279
Synthesis and Characteristics of 1,2,4,5-Tetrazines for Using as High Energy Density Materials (HEDMs)
Published 2025-01-01“…This review presents methods for constructing 1,2,4,5-tetrazine precursors from acyclic reagents and describes their chemical modifications, leading to new energetic compounds with potential applications in the industry as explosives, propellants, or pyrotechnics. …”
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280
Structure-guided engineering of immunotherapies targeting TRBC1 and TRBC2 in T cell malignancies
Published 2024-02-01“…This permits generation of paired reagents (chimeric antigen receptor-T cells) specific for TRBC1 and TRBC2, with preclinical evidence to support their efficacy in T cell malignancies.…”
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