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1

Adeoye, Raphael I., Dunsin S. Osalaye, Theresia K. Ralebitso-Senior, et al. "Catalytic Activities of Multimeric G-Quadruplex DNAzymes." Catalysts 9, no. 7 (2019): 613. http://dx.doi.org/10.3390/catal9070613.

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G-quadruplex DNAzymes are short DNA aptamers with repeating G4 quartets bound in a non-covalent complex with hemin. These G4/Hemin structures exhibit versatile peroxidase-like catalytic activity with a wide range of potential applications in biosensing and biotechnology. Current efforts are aimed at gaining a better understanding of the molecular mechanism of DNAzyme catalysis as well as devising strategies for improving their catalytic efficiency. Multimerisation of discrete units of G-quadruplexes to form multivalent DNAzyes is an emerging design strategy aimed at enhancing the peroxidase activities of DNAzymes. While this approach holds promise of generating more active multivalent G-quadruplex DNAzymes, few examples have been studied and it is not clear what factors determine the enhancement of catalytic activities of multimeric DNAzymes. In this study, we report the design and characterisation of multimers of five G-quadruplex sequences (AS1411, Bcl-2, c-MYC, PS5.M and PS2.M). Our results show that multimerisation of G-quadruplexes that form parallel structure (AS1411, Bcl-2, c-MYC) leads to significant rate enhancements characteristic of cooperative and/or synergistic interactions between the monomeric units. In contrast, multimerisation of DNA sequences that form non-parallel structures (PS5.M and PS2.M) did not exhibit similar levels of synergistic increase in activities. These results show that design of multivalent G4/Hemin structures could lead to a new set of versatile and efficient DNAzymes with enhanced capacity to catalyse peroxidase-mimic reactions.
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2

Holzwarth, Arnold, and Wilhelm F. Maier. "Catalytic Phenomena in Combinatorial Libraries of Heterogeneous Catalysts." Platinum Metals Review 44, no. 1 (2000): 16–21. http://dx.doi.org/10.1595/003214000x4411621.

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Combinatorial catalysis is becoming a significant method for investigating the activities of large numbers of potential catalysts. A very important prerequisite for making use of combinatorial catalysis research is a reliable, fast and efficient technique for monitoring the catalytic activities. Emissivity-corrected infrared thermography, which monitors the heat changes resulting from the heat of reaction on catalyst surfaces, is such a technique. In this article we describe emissivity-corrected infrared thermography and demonstrate its performance, over time, in monitoring the catalytic activities of catalyst libraries. It is shown that not only can static relative activity be displayed, but also that catalyst-specific time-dependent properties, such as activation and deactivation phenomena can be demonstrated.
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3

MATCHAM, G. W. J., J. M. CHAPSAL, and D. GUILLOCHON. "Catalytic Activities of Bovine Hemoglobin." Annals of the New York Academy of Sciences 501, no. 1 Enzyme Engine (1987): 21–35. http://dx.doi.org/10.1111/j.1749-6632.1987.tb45680.x.

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4

Oba, Takae, Jun Fukushima, Masako Maruyama, Ryoko Iwamoto, and Kenji Ikehara. "Catalytic Activities Of [GADV]-Peptides." Origins of Life and Evolution of Biospheres 35, no. 5 (2005): 447–60. http://dx.doi.org/10.1007/s11084-005-3519-5.

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5

Sohn, Jong Rack, and Jun Seob Lim. "Catalytic Activities of Al2O3-promoted NiSO4/TiO2 for Acid Catalysis." Catalysis Letters 108, no. 1-2 (2006): 71–78. http://dx.doi.org/10.1007/s10562-006-0020-3.

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6

Carballares, Diego, Roberto Morellon-Sterling, and Roberto Fernandez-Lafuente. "Design of Artificial Enzymes Bearing Several Active Centers: New Trends, Opportunities and Problems." International Journal of Molecular Sciences 23, no. 10 (2022): 5304. http://dx.doi.org/10.3390/ijms23105304.

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Harnessing enzymes which possess several catalytic activities is a topic where intense research has been carried out, mainly coupled with the development of cascade reactions. This review tries to cover the different possibilities to reach this goal: enzymes with promiscuous activities, fusion enzymes, enzymes + metal catalysts (including metal nanoparticles or site-directed attached organometallic catalyst), enzymes bearing non-canonical amino acids + metal catalysts, design of enzymes bearing a second biological but artificial active center (plurizymes) by coupling enzyme modelling and directed mutagenesis and plurizymes that have been site directed modified in both or in just one active center with an irreversible inhibitor attached to an organometallic catalyst. Some examples of cascade reactions catalyzed by the enzymes bearing several catalytic activities are also described. Finally, some foreseen problems of the use of these multi-activity enzymes are described (mainly related to the balance of the catalytic activities, necessary in many instances, or the different operational stabilities of the different catalytic activities). The design of new multi-activity enzymes (e.g., plurizymes or modified plurizymes) seems to be a topic with unarguable interest, as this may link biological and non-biological activities to establish new combo-catalysis routes.
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7

Cao, Liang, Le Niu, and Tim Mueller. "Computationally generated maps of surface structures and catalytic activities for alloy phase diagrams." Proceedings of the National Academy of Sciences 116, no. 44 (2019): 22044–51. http://dx.doi.org/10.1073/pnas.1910724116.

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To facilitate the rational design of alloy catalysts, we introduce a method for rapidly calculating the structure and catalytic properties of a substitutional alloy surface that is in equilibrium with the underlying bulk phase. We implement our method by developing a way to generate surface cluster expansions that explicitly account for the lattice parameter of the bulk structure. This approach makes it possible to computationally map the structure of an alloy surface and statistically sample adsorbate binding energies at every point in the alloy phase diagram. When combined with a method for predicting catalytic activities from adsorbate binding energies, maps of catalytic activities at every point in the phase diagram can be created, enabling the identification of synthesis conditions likely to result in highly active catalysts. We demonstrate our approach by analyzing Pt-rich Pt–Ni catalysts for the oxygen reduction reaction, finding 2 regions in the phase diagram that are predicted to result in highly active catalysts. Our analysis indicates that the Pt3Ni(111) surface, which has the highest known specific activity for the oxygen reduction reaction, is likely able to achieve its high activity through the formation of an intermetallic phase with L12 order. We use the generated surface structure and catalytic activity maps to demonstrate how the intermetallic nature of this phase leads to high catalytic activity and discuss how the underlying principles can be used in catalysis design. We further discuss the importance of surface phases and demonstrate how they can dramatically affect catalytic activity.
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8

Yuan, Zeqin, Jun Liao, Hao Jiang, Peng Cao, and Yang Li. "Aldehyde catalysis – from simple aldehydes to artificial enzymes." RSC Advances 10, no. 58 (2020): 35433–48. http://dx.doi.org/10.1039/d0ra06651f.

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9

Aogaki, R., R. Morimoto, M. Asanuma, et al. "Chiral catalytic activities in magnetoelectrochemical etching." Magnetohydrodynamics 51, no. 2 (2015): 353–60. http://dx.doi.org/10.22364/mhd.51.2.20.

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10

Chen, Kai, and Frances H. Arnold. "Engineering new catalytic activities in enzymes." Nature Catalysis 3, no. 3 (2020): 203–13. http://dx.doi.org/10.1038/s41929-019-0385-5.

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11

Odularu, Ayodele Temidayo. "Bismuth as Smart Material and Its Application in the Ninth Principle of Sustainable Chemistry." Journal of Chemistry 2020 (July 22, 2020): 1–15. http://dx.doi.org/10.1155/2020/9802934.

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This paper reports an overview of Green Chemistry and the concept of its twelve principles. This study focusses on the ninth principle of Green Chemistry, that is, catalysis. A report on catalysis, in line with its definition, background, classification, properties, and applications, is provided. The study also entails a green element called bismuth. Bismuth’s low toxicity and low cost have made researchers focus on its wide applications in catalysis. It exhibits smartness in all the catalytic activities with the highest catalytic performance among other metals.
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12

Kundu, Subrata, Yunyun Chen, Wei Dai, Lian Ma, Alexander M. Sinyukov, and Hong Liang. "Enhanced catalytic and SERS activities of size-selective Rh NPs on DNA scaffolds." Journal of Materials Chemistry C 5, no. 10 (2017): 2577–90. http://dx.doi.org/10.1039/c6tc05529j.

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Size-selective Rh NPs are prepared within a short time using the UV-photoactivation route on DNA scaffolds and their size effect was tested both in catalysis and SERS studies. An enhanced catalytic rate and high EF value ever reported for Rh NPs in SERS was observed.
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13

Ji, Xinhua. "Structural basis for non-catalytic and catalytic activities of ribonuclease III." Acta Crystallographica Section D Biological Crystallography 62, no. 8 (2006): 933–40. http://dx.doi.org/10.1107/s090744490601153x.

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14

Estelrich, Joan, and M. Antònia Busquets. "Prussian Blue: A Nanozyme with Versatile Catalytic Properties." International Journal of Molecular Sciences 22, no. 11 (2021): 5993. http://dx.doi.org/10.3390/ijms22115993.

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Nanozymes, nanomaterials with enzyme-like activities, are becoming powerful competitors and potential substitutes for natural enzymes because of their excellent performance. Nanozymes offer better structural stability over their respective natural enzymes. In consequence, nanozymes exhibit promising applications in different fields such as the biomedical sector (in vivo diagnostics/and therapeutics) and the environmental sector (detection and remediation of inorganic and organic pollutants). Prussian blue nanoparticles and their analogues are metal–organic frameworks (MOF) composed of alternating ferric and ferrous irons coordinated with cyanides. Such nanoparticles benefit from excellent biocompatibility and biosafety. Besides other important properties, such as a highly porous structure, Prussian blue nanoparticles show catalytic activities due to the iron atom that acts as metal sites for the catalysis. The different states of oxidation are responsible for the multicatalytic activities of such nanoparticles, namely peroxidase-like, catalase-like, and superoxide dismutase-like activities. Depending on the catalytic performance, these nanoparticles can generate or scavenge reactive oxygen species (ROS).
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15

Zhang, Wenxia, Shuang Xia, Chonglai Chen, et al. "Understanding the crucial roles of catalyst properties in ethyl acetate and toluene oxidation over Pt catalysts." New Journal of Chemistry 45, no. 25 (2021): 11352–58. http://dx.doi.org/10.1039/d1nj01823j.

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The catalytic activities of these Pt catalysts for ethyl acetate mainly depend on the oxygen vacancy density, whereas the synergistic catalysis of Pt<sup>0</sup> species and oxygen vacancies play important roles in toluene oxidation.
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16

OBA, Masaaki, Yasuo MIKI, Shoko YAMADAYA, and Yoshikazu SUGIMOTO. "Catalytic activities of nickel catalysts for hydrogenolysis." Journal of The Japan Petroleum Institute 29, no. 6 (1986): 450–55. http://dx.doi.org/10.1627/jpi1958.29.450.

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17

Rack, Johannes Gregor Matthias, Dragutin Perina, and Ivan Ahel. "Macrodomains: Structure, Function, Evolution, and Catalytic Activities." Annual Review of Biochemistry 85, no. 1 (2016): 431–54. http://dx.doi.org/10.1146/annurev-biochem-060815-014935.

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18

Soboleva, Svetlana E., Sergey E. Sedykh, Ludmila I. Alinovskaya, Valentina N. Buneva, and Georgy A. Nevinsky. "Cow Milk Lactoferrin Possesses Several Catalytic Activities." Biomolecules 9, no. 6 (2019): 208. http://dx.doi.org/10.3390/biom9060208.

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Lactoferrin (LF) is a Fe3+-binding glycoprotein, that was first recognized in milk and then in other epithelial secretions and barrier body fluids to which many different functions have been attributed to LF including protection from iron-induced lipid peroxidation, immunomodulation, cell growth regulation, DNA and RNA binding, as well as transcriptional activation, etc. The polyfunctional physiological role of LF is still unclear, but it has been suggested to be responsible for primary defense against microbial and viral infections. It was shown previously that human milk LF possesses several enzymatic activities: DNase, RNase, ATPase, phosphatase, and amylase. Analysis of human, cow, horse, buffalo and camel LF showed a highly conserved three-dimensional (3D) structure including only detail differences in the species. Recently, it was shown that similar to human cow LF possesses DNase and RNase activities. Using different methods here we have shown for the first time that LFs from the milk of seven cows of different breeds possess high peroxidase, protease, amylase, protease, and phosphatase activities. Protease activity of cow LFs was activated by Mg2+ and Ca2+ ions. In contrast to human LFs, ATPase activity was revealed only in three of seven cow LF preparations. The discovery that LF possesses these activities may contribute to understanding the multiple physiological functions of this extremely polyfunctional protein including its protective role against microbial and viral infections.
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19

Jung, Hye Jin, Kyusuk Nam, Jisuk Lee, et al. "Catalytic activities of Ni-decorated boron particles." Materials & Design 125 (July 2017): 205–12. http://dx.doi.org/10.1016/j.matdes.2017.03.086.

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20

Rhodes, C. N., D. R. Brown, S. Plant, and J. A. Dale. "Sulphonated polystyrene resins: acidities and catalytic activities." Reactive and Functional Polymers 40, no. 3 (1999): 187–93. http://dx.doi.org/10.1016/s1381-5148(98)00042-x.

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21

Esmaeili, S., M. H. Ehsani, and M. Fazli. "Photo-catalytic activities of La0.7Ba 0.3MnO3 nanoparticles." Optik 216 (August 2020): 164812. http://dx.doi.org/10.1016/j.ijleo.2020.164812.

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22

KELLERSHOHN, Nicolas, and Jacques RICARD. "Coordination of catalytic activities within enzyme complexes." European Journal of Biochemistry 220, no. 3 (1994): 955–61. http://dx.doi.org/10.1111/j.1432-1033.1994.tb18699.x.

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23

Yang, Shujie, Li Zhang, and Qun Wei. "Activities and properties of calcineurin catalytic domain." Chinese Science Bulletin 45, no. 15 (2000): 1394–99. http://dx.doi.org/10.1007/bf02886245.

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24

Gao, Yan, Wenchao Jiang, Tao Luan, et al. "High-Efficiency Catalytic Conversion of NOx by the Synergy of Nanocatalyst and Plasma: Effect of Mn-Based Bimetallic Active Species." Catalysts 9, no. 1 (2019): 103. http://dx.doi.org/10.3390/catal9010103.

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Three typical Mn-based bimetallic nanocatalysts of Mn−Fe/TiO2, Mn−Co/TiO2, Mn−Ce/TiO2 were synthesized via the hydrothermal method to reveal the synergistic effects of dielectric barrier discharge (DBD) plasma and bimetallic nanocatalysts on NOx catalytic conversion. The plasma-catalyst hybrid catalysis was investigated compared with the catalytic effects of plasma alone and nanocatalyst alone. During the catalytic process of catalyst alone, the catalytic activities of all tested catalysts were lower than 20% at ambient temperature. While in the plasma-catalyst hybrid catalytic process, NOx conversion significantly improved with discharge energy enlarging. The maximum NOx conversion of about 99.5% achieved over Mn−Ce/TiO2 under discharge energy of 15 W·h/m3 at ambient temperature. The reaction temperature had an inhibiting effect on plasma-catalyst hybrid catalysis. Among these three Mn-based bimetallic nanocatalysts, Mn−Ce/TiO2 displayed the optimal catalytic property with higher catalytic activity and superior selectivity in the plasma-catalyst hybrid catalytic process. Furthermore, the physicochemical properties of these three typical Mn-based bimetallic nanocatalysts were analyzed by N2 adsorption, Transmission Electron Microscope (TEM), X-ray diffraction (XRD), H2-temperature-programmed reduction (TPR), NH3-temperature-programmed desorption (TPD), and X-ray photoelectron spectroscopy (XPS). The multiple characterizations demonstrated that the plasma-catalyst hybrid catalytic performance was highly dependent on the phase compositions. Mn−Ce/TiO2 nanocatalyst presented the optimal structure characteristic among all tested samples, with the largest surface area, the minished particle sizes, the reduced crystallinity, and the increased active components distributions. In the meantime, the ratios of Mn4+/(Mn2+ + Mn3+ + Mn4+) in the Mn−Ce/TiO2 sample was the highest, which was beneficial to plasma-catalyst hybrid catalysis. Generally, it was verified that the plasma-catalyst hybrid catalytic process with the Mn-based bimetallic nanocatalysts was an effective approach for high-efficiency catalytic conversion of NOx, especially at ambient temperature.
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25

Bai, Junhua, Jinhua Wang, Yan Wang, and Lifang Zhang. "Dual catalysis system for ring-opening polymerization of lactones and 2,2-dimethyltrimethylene carbonate." Polymer Chemistry 9, no. 39 (2018): 4875–81. http://dx.doi.org/10.1039/c8py01230j.

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The dual catalysis system exhibit the characteristics of a controlled ROP and suitable activities for the ROP of lactones and carbonates. Polymers prepared through this dual catalytic route possess predictable molecular weights, narrow polydispersities, and high end-group fidelity.
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26

Chang, Audrey N., Pravin Mahajan, Stefan Knapp, et al. "Cardiac myosin light chain is phosphorylated by Ca2+/calmodulin-dependent and -independent kinase activities." Proceedings of the National Academy of Sciences 113, no. 27 (2016): E3824—E3833. http://dx.doi.org/10.1073/pnas.1600633113.

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The well-known, muscle-specific smooth muscle myosin light chain kinase (MLCK) (smMLCK) and skeletal muscle MLCK (skMLCK) are dedicated protein kinases regulated by an autoregulatory segment C terminus of the catalytic core that blocks myosin regulatory light chain (RLC) binding and phosphorylation in the absence of Ca2+/calmodulin (CaM). Although it is known that a more recently discovered cardiac MLCK (cMLCK) is necessary for normal RLC phosphorylation in vivo and physiological cardiac performance, information on cMLCK biochemical properties are limited. We find that a fourth uncharacterized MLCK, MLCK4, is also expressed in cardiac muscle with high catalytic domain sequence similarity with other MLCKs but lacking an autoinhibitory segment. Its crystal structure shows the catalytic domain in its active conformation with a short C-terminal “pseudoregulatory helix” that cannot inhibit catalysis as a result of missing linker regions. MLCK4 has only Ca2+/CaM-independent activity with comparable Vmax and Km values for different RLCs. In contrast, the Vmax value of cMLCK is orders of magnitude lower than those of the other three MLCK family members, whereas its Km (RLC and ATP) and KCaM values are similar. In contrast to smMLCK and skMLCK, which lack activity in the absence of Ca2+/CaM, cMLCK has constitutive activity that is stimulated by Ca2+/CaM. Potential contributions of autoregulatory segment to cMLCK activity were analyzed with chimeras of skMLCK and cMLCK. The constitutive, low activity of cMLCK appears to be intrinsic to its catalytic core structure rather than an autoinhibitory segment. Thus, RLC phosphorylation in cardiac muscle may be regulated by two different protein kinases with distinct biochemical regulatory properties.
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27

Dixit, Chitransh, Kanchan Lata Dixit, Chandra Kumar Dixit, Praveen Kumar Pandey, and Shavej Ali Siddiqui. "Exploring Nanomaterials for Enhanced Catalysis in Chemical Reactions." International journal of Modern Achievement in Science, Engineering and Technology 2, no. 1 (2024): 31–35. https://doi.org/10.63053/ijset.56.

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The study Nanotechnology has emerged as a ground-breaking frontier in the field of catalysis, offering promising avenues for revolutionizing chemical reactions. This abstract provides a concise overview of recent developments in harnessing nanomaterials to enhance catalytic processes. Nanomaterials, with their unique size-dependent properties and high surface area-to-volume ratios, have exhibited remarkable catalytic efficiency, selectivity, and stability. This abstract highlight key aspects of the research conducted to harness these advantages, including the synthesis and characterization of various nanomaterials such as nanoparticles, nanowires, and Nano sheets. These materials are tailored to optimize their catalytic performance by precisely controlling their size, shape, and composition. The discussion the diverse range of catalytic applications that benefit from nanomaterials, including green energy production, environmental remediation, and pharmaceutical synthesis. The enhanced catalytic activities facilitated by nanomaterials have the potential to reduce reaction times, lower energy consumption, and minimize waste products, contributing to more sustainable and efficient chemical processes and touches upon the challenges and future prospects of nanomaterial-based catalysis, emphasizing the need for further research to fully understand the underlying mechanisms and potential environmental and safety concerns. Collaborative efforts among chemists, material scientists, and engineers are essential to unlock the full potential of nanomaterials in catalysis and pave the way for innovative solutions to complex global challenges.
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28

Jiang, Yue, Qing Wang, Jing Xu, et al. "Ce1−xSnxO2 Catalysts Prepared with Combustion Method for Catalytic Combustion of Ethyl Acetate." Catalysts 13, no. 11 (2023): 1400. http://dx.doi.org/10.3390/catal13111400.

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A series of Ce1-XSnXO2 (X = 0, 0.2, 0.3, 0.4, 0.5, 0.9, 1) catalysts were synthesized via the combustion method. The physical and chemical structures of the prepared catalysts were systematically characterized by XRD, BET, SEM, TEM, XPS, and TPR. The Ce1-XSnXO2 catalysts have higher catalytic activities than the mono-oxide catalysts, as there are synergistic effects between CeO2 and SnO2. The catalytic activities of the Ce1−XSnXO2 catalysts are dependent on the X for the catalytic combustion of ethyl acetate (EA). The Ce1−XSnXO2 (X &lt; 0.5) catalysts show high catalytic performances. Meanwhile, the Ce0.8Sn0.2O2 and Ce0.7Sn0.3O2 catalysts display the highest catalytic performance, with T50 = 190 °C and T90 = 210 °C. More importantly, the Ce0.8Sn0.2O2 catalyst exhibits superior thermal and catalytic activity stability. It is found that the Ce1-XSnXO2 catalysts form solid solutions, as the X is &lt;0.5. The reduction of Sn4+ species to Sn2+ is significantly promoted by the CeO2, which is an important factor attributed to the high catalytic activities of the solid solution Ce1−XSnXO2 catalysts. The catalytic activities of the Ce1-XSnXO2 catalysts exhibit a strong correlation to the surface atomic areas of Ce3+ and Oα (VO). In other words, the higher surface atomic areas of Ce3+ and Oα (VO) are, the higher the catalytic activities will have.
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29

Sankudevan, P., R. V. Sakthivel, Ramalingam Gopal, et al. "Catalytic and Photocatalytic Degradation Activities of Nanoscale Mn-Doped ZnCr2O4." Advances in Materials Science and Engineering 2022 (December 20, 2022): 1–8. http://dx.doi.org/10.1155/2022/7056380.

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In the present work, the effect of Mn doping in Zinc Chromite (ZnCr2O4) and particle size reduction on catalytic and photocatalytic degradation performance have been evaluated. The pristine Zn1−xMnxCr2O4 (x = 0 to 0.03) nanoscale samples are synthesized through a hydrothermal approach. The synthesized catalysts are characterized by XRD, HR-SEM, HR-TEM, catalytic, and photocatalytic degradation analyses. X-ray diffraction analysis results confirmed the formation of the ZnCr2O4 structure and its phase purity, crystallite size, and Mn dopant effect. The surface morphology and particle size of Zn1−xMnxCr2O4 samples are evaluated by SEM and TEM measurements. The textural properties of ZnCr2O4 samples are identified by the surface area analysis. The catalytic performance of Mn-doped ZnCr2O4 samples reveals superior catalytic performance compared to pristine ZnCr2O4 in benzaldehyde and carbonyl compound productions. Under UV irradiation, an excellent photocatalytic degradation efficiency of 89.66% for Zn0.97Mn0.03Cr2O4 catalyst with methylene blue has been obtained.
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30

Hassan, Mohammed, Sadeq M. Al-Hazmi, Ibrahim A. Alhagri, et al. "Micellar Catalysis of Chemical Reactions by Mixed Surfactant Systems and Gemini Surfactants." Asian Journal of Chemistry 33, no. 7 (2021): 1471–80. http://dx.doi.org/10.14233/ajchem.2021.23187.

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Micellar catalysis exhibited by mixed surfactant systems and gemini surfactants was reviewed. The review focused on mixed surfactant systems and tried to correlate the changes in the physico-chemical properties of these systems to the variations of their catalytic activities. Mixed surfactant systems are promising as the catalytic efficiency of some single surfactants was significantly enhanced in the presence of other critically selected surfactants. The selection should consider the charge, size, and structures of the head group as well as an appropriate length of hydrocarbon tail. The overall conclusion has arrived the mixed surfactant systems could be a tool by which the reaction rate can be tuned by changing the composition and/or the components’ structures. The higher catalytic activity of gemini surfactants compared to conventional ones, their facile synthesis and liability for structure control made them of superior choice for micellar catalysis.
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31

Nie, Yan-Mei, Sang-Hao Li, Ming-Yuan Lin, and Jun Yan. "A micro-environment tuning approach for enhancing the catalytic capabilities of lanthanide containing polyoxometalate in the cyanosilylation of ketones." Chemical Communications 56, no. 26 (2020): 3809–12. http://dx.doi.org/10.1039/d0cc01216e.

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32

Zozulia, O., M. A. Dolan, and I. V. Korendovych. "Catalytic peptide assemblies." Chemical Society Reviews 47, no. 10 (2018): 3621–39. http://dx.doi.org/10.1039/c8cs00080h.

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33

Mao, Mao, Xuejiao Guan, Feng Wu, and Lan Ma. "CoO Nanozymes with Multiple Catalytic Activities Regulate Atopic Dermatitis." Nanomaterials 12, no. 4 (2022): 638. http://dx.doi.org/10.3390/nano12040638.

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Herein, we prepared CoO nanozymes with three types of enzyme catalytic activities for the first time, which have SOD-like, CAT-like, and POD-like catalytic activities. This is the first study to report the preparation of CoO nanoparticles with three types of enzyme catalytic activities by the one-pot method. By modifying the surface of CoO nanozymes with a carboxyl group, its biocompatibility enhanced, so it can be used in the field of life sciences. In vitro cytotoxicity and anti-H2O2-induced ROS experiments proved that CoO nanozymes can protect HaCaT cells against ROS and cytotoxicity induced by H2O2. In addition, an atopic dermatitis (AD) mouse model was established by topical application of MC903, which verified the anti-inflammatory effect of CoO nanozymes on the AD mouse model. Traditional drugs for the treatment of AD, such as dexamethasone, have significant side-effects. The side-effects include skin burns, telangiectasias, and even serious drug dependence. CoO nano-enzymes have a low cytotoxicity and its multiple enzyme-like catalytic activities can effectively protect cells and tissues in ROS environments, which proves that CoO nano-enzymes have high application potential in the field of anti-inflammation.
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34

Yoshida, Ryoichi, Makoto Miyazawa, Tadashi Yoshida, Hideo Narita, and Yosuke Maekawa. "Chemical structure changes in Condor shale oil and catalytic activities during catalytic hydrotreatment." Fuel 75, no. 1 (1996): 99–102. http://dx.doi.org/10.1016/0016-2361(95)00197-2.

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35

Montagner, Sara, Cristina Leoni, Stefan Emming, et al. "TET2 Regulates Mast Cell Differentiation and Proliferation through Catalytic and Non-catalytic Activities." Cell Reports 15, no. 7 (2016): 1566–79. http://dx.doi.org/10.1016/j.celrep.2016.04.044.

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36

Montagner, Sara, Cristina Leoni, Stefan Emming, et al. "TET2 Regulates Mast Cell Differentiation and Proliferation through Catalytic and Non-catalytic Activities." Cell Reports 20, no. 7 (2017): 1744. http://dx.doi.org/10.1016/j.celrep.2017.08.011.

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37

Tang, Li Hong, Hui Bin Guo, Kai Li, Ping Ning, Chi Wang, and Xin Sun. "Effects of Reaction Conditions on Low-Temperature Removal of Carbon Disulfide over Modified Coconut Shell Activated Carbons Catalysts." Advanced Materials Research 894 (February 2014): 293–99. http://dx.doi.org/10.4028/www.scientific.net/amr.894.293.

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In this work, a series of modified coconut shell activated carbons (CSAC) catalysts were prepared by sol-gel method and used for catalytic hydrolysis of carbon disulfide (CS2) at low-temperatures. The influences of reaction conditions such as: reaction temperature, O2 concentration, relative humidity (RH), gas hourly space velocity (GHSV) and inlet concentration of CS2 on catalytic hydrolysis activities were studied. When the reaction temperature was 60°C, this catalyst showed the best catalytic performance and no better effect occurs with the increase of temperature. CS2 hydrolysis activities were decreased with increasing amounts of O2. When the RH was 30%, the catalyst manifests the best activity. The catalytic hydrolysis activities were decreased with increased of GHSV from 5000~20000h-1. In addition, when the inlet concentration of CS2 increased from 10ppm to 100ppm, the catalytic hydrolysis activities could be decreased.
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38

Liu, Yilin, Jiaoxue Wang, Yanli Yin, and Zhiyong Jiang. "Recent Advances in Catalytic Atroposelective Synthesis of Axially Chiral Quinazolinones." Catalysts 15, no. 5 (2025): 426. https://doi.org/10.3390/catal15050426.

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Quinazolinones, a class of nitrogen-containing heterocyclic compounds, occupy a crucial position in medicinal chemistry and materials science due to their significant application potential. In recent years, the catalytic asymmetric synthesis of axially chiral quinazolinones has emerged as a prominent research area, driven by their prospective applications in the development of bioactive molecules, design of chiral ligands, and fabrication of functional materials. This review comprehensively summarizes recent advancements in the catalytic asymmetric synthesis of axially chiral quinazolinones, with a particular focus on the construction strategies for the three major structural types: the C–N axis, N–N axis, and C–C axis. Key synthetic methodologies, including atroposelective halogenation, kinetic resolution, condensation–oxidation, and photoredox deracemization, are discussed in detail. In addition, the review provides an in-depth analysis of the applications of various catalytic systems, such as peptide catalysis, enzymatic catalysis, metal catalysis, chiral phosphoric acid catalysis, and others. Despite the substantial progress made thus far, several challenges remain, including the expansion of the substrate scope, enhanced control over stereoselectivity, and further exploration of practical applications, such as drug discovery and asymmetric catalysis. These insights are expected to guide future research towards the development of novel synthetic strategies, the diversification of structural variants, and a comprehensive understanding of their biological activities and catalytic functions. Ultimately, this will foster the continued growth and evolution of this rapidly advancing field.
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39

Tian, Miaomiao, Jun Zheng, Jintang Xue, et al. "A series of microporous and robust Ln-MOFs showing luminescence properties and catalytic performances towards Knoevenagel reactions." Dalton Transactions 50, no. 47 (2021): 17785–91. http://dx.doi.org/10.1039/d1dt03188k.

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A series of microporous and stable LnMOFs (1-Ln, Ln = La, Pr, Eu, and Tb) has been synthesized from H3NTB ligand. 1-Tb shows the best catalytic activities (yield 99%) for Knoevenagel reactions, providing a unique example to differentiate the role of Ln ions in catalysis.
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40

Bo, Yang. "Study of the Catalytic Activity of Acidic Ionic Liquid in the Synthesis of Methyl Oleate." Advanced Materials Research 1094 (March 2015): 31–36. http://dx.doi.org/10.4028/www.scientific.net/amr.1094.31.

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Four kinds of Brønsted-acidic ionic liquids were synthesized with netrogen-contained chemical groups and different anions,and were characterized by nuclear magnetic resonance (NMR) and infrared spectrum (IR). On this basic, when the mole ratio of catalyst quantity to oleic acid was 0.019, that of alcohol to acid was 2, the reaction temperature was 150°C and the reaction time was 5 hours,the esterification of oleic and methanol were studied and the catalytic activities of ionic liquids for the esterification were investigated. The results showed their catalytic activities were associated with the structures of nitrogen-contained chemical groups, anionic acid strength and acid volume. Under the coaction of anions and cations, ionic liquids ([MPy]HSO4) had the best catalysis activity. Meanwhile the conversion rate of oleic acid could reach 88.21% .
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41

de Montellano, P. R. Ortiz, S. I. Ozaki, S. L. Newmyer, V. P. Miller, and C. Hartmann. "Structural determinants of the catalytic activities of peroxidases." Biochemical Society Transactions 23, no. 2 (1995): 223–27. http://dx.doi.org/10.1042/bst0230223.

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42

Vieira, Eduardo Guimarães, Rafael Oliveira Silva, Alexandre Gonçalves Dal-Bó, Tiago Elias Allievi Frizon, and Newton Luiz Dias Filho. "Syntheses and catalytic activities of new metallodendritic catalysts." New Journal of Chemistry 40, no. 11 (2016): 9403–14. http://dx.doi.org/10.1039/c6nj01629d.

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43

Kwezi, Lusisizwe, Janet I. Wheeler, Claudius Marondedze, Chris Gehring, and Helen R. Irving. "Intramolecular crosstalk between catalytic activities of receptor kinases." Plant Signaling & Behavior 13, no. 2 (2018): e1430544. http://dx.doi.org/10.1080/15592324.2018.1430544.

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44

Lin, Rong-Shin, Meng-Ru Li, Yi-Hong Liu, Shei-Ming Peng, and Shiuh-Tzung Liu. "Bimetallic complexes of porphyrinphenanthroline: Preparation and catalytic activities." Inorganica Chimica Acta 363, no. 13 (2010): 3523–29. http://dx.doi.org/10.1016/j.ica.2010.07.008.

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45

Mazza, Daniele, Maria Lucco-Borlera, Esterina Lepore, and Silvia Ronchetti. "Investigation of catalytic activities by differential thermal analysis." Journal of Thermal Analysis 46, no. 6 (1996): 1625–32. http://dx.doi.org/10.1007/bf01980768.

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46

Gupta, K. C., and Alekha Kumar Sutar. "Catalytic activities of Schiff base transition metal complexes." Coordination Chemistry Reviews 252, no. 12-14 (2008): 1420–50. http://dx.doi.org/10.1016/j.ccr.2007.09.005.

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47

Kimura, Mutsumi, Yasuji Sugihara, Tsuyoshi Muto, Kenji Hanabusa, Hirofusa Shirai, and Nagao Kobayashi. "Dendritic Metallophthalocyanines—Synthesis, Electrochemical Properties, and Catalytic Activities." Chemistry - A European Journal 5, no. 12 (1999): 3495–500. http://dx.doi.org/10.1002/(sici)1521-3765(19991203)5:12<3495::aid-chem3495>3.0.co;2-e.

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48

Cepelak, Ivana, Slavica Dodig, Dominik Romic, Nedeljka Ruljancic, Sanja Popovic-Grle, and Ana Malic. "Enzyme Catalytic Activities in Chronic Obstructive Pulmonary Disease." Archives of Medical Research 37, no. 5 (2006): 624–29. http://dx.doi.org/10.1016/j.arcmed.2006.01.004.

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49

Tipton, Peter A. "Tartrate dehydrogenase, an enzyme with multiple catalytic activities." Protein & Peptide Letters 7, no. 5 (2000): 323–32. http://dx.doi.org/10.2174/092986650705221207143232.

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Abstract: Tartrate dehydrogenase is found in a variety of microorganisms and operates as part of a pathway by which tartrate is converted into D-glycerate, providing entry for the carbon into primary metabolic pathways. Tartrate dehydrogenase was isolated from Pseudomonas putida grown on (+)-tartrate as the sole carbon source and characterized in the 1960's [l]. More recently, TDH was isolated from the same bacterial strain and its gene was cloned [2]. The properties of that enzyme are similar in several respects to the TDH described in the earlier work, but differ in several key features as well. It is difficult to know whether the discrepancies arose because different enzymes were isolated and studied or whether mutations occurred which changed the functional properties of the enzyme. A number of workers have described enzymes which tum over tartrate [3,4], but this article will concentrate on the recently isolated P. putida TDH, which exhibited several fascinating mechanistic features.
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50

Kee, Younghoon, and Jon M. Huibregtse. "Regulation of catalytic activities of HECT ubiquitin ligases." Biochemical and Biophysical Research Communications 354, no. 2 (2007): 329–33. http://dx.doi.org/10.1016/j.bbrc.2007.01.025.

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