Article
Chemistry, Applied
Ines S. Tiscornia, Albano M. Lacoste, Magali Bonne, Benedicte Lebeau, Alicia V. Boix
Summary: This study investigated different variables that affect the catalytic behavior of CuO-CeO2 on mesoporous silica, analyzing the relative concentration of active phases, impregnation methods, and the influence of support structure. The results showed that catalysts based on 2D SBA-15 exhibited higher activity and selectivity than those based on 3D SBA-16. The high surface area of the support benefitted the dispersion of active phase nanoparticles. The best COPrOx catalyst, with a relative CuO concentration of 0.2, exhibited excellent conversion and selectivity.
Article
Chemistry, Multidisciplinary
Juan Gonzalez, Eduardo Perez, Marzena Pepczynska, Lourdes Calvo, Albertina Cabanas
Summary: Naproxen was impregnated into mesoporous SiO2 SBA-15 using the Supercritical Solution Impregnation (SSI) technique. The percentage of naproxen impregnated decreased with increasing CO2 density and with the addition of ethanol, ethyl acetate or menthol. The impregnated naproxen on SiO2 became amorphous and showed interaction with SiO2 support. Release tests showed a sustained release system with a slower rate compared to pure naproxen due to the interaction and diffusion of the drug.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Applied
Julie Schobing, Moises Cesario, Sophie Dorge, Habiba Nouali, Joel Patarin, Johan Martens, Jean-Francois Brilhac
Summary: This study evaluated SBA-15 and COK-12 supports loaded with CuO for desulfurization through SOx adsorption and regeneration processes. The COK-12 support exhibited promising results in terms of adsorption capacity and regenerability compared to SBA-15, highlighting the importance of support structure in influencing adsorbent performance.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Chemistry, Applied
Mani Durai, Sakthivel Kumaravel, Arivanandhan Mukannan, Balu Krishnakumar, Sivakumar Thiripuranthagan, Young-Ho Ahn
Summary: The study aims to synthesize ethyl valerate (EV) as a fuel additive by esterifying valeric acid with ethanol using Al-SB and x% PTA/Al-SB catalysts. Among the catalysts, the 30% PTA/Al-SB catalyst exhibited the highest catalytic activity with 96% conversion of valeric acid and 100% selectivity towards ethyl valerate. Additionally, the recyclability of the prepared catalyst was found to be excellent.
JOURNAL OF POROUS MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Feng Lin, Meiyu Si, Yaning Lu, Ke Tang
Summary: Copper containing SBA-15 materials were prepared using a simple surfactant-assisted impregnation method. The surfactant in the synthesized SBA-15 played a crucial role in facilitating the distribution of copper species into the channels. Characterization results demonstrated that the surfactant-assisted impregnation method was superior to the conventional impregnation method in obtaining highly dispersed Cu-SBA-15 with isolated copper species and small clusters. These materials exhibited excellent CO oxidation activity and stability due to the finely dispersed Cu species and active sites.
Article
Chemistry, Applied
Changhao Yan, Shouteng Zheng, Na Chen, Shouqi Yuan, Yao Chen, Bing Li, Yunlei Zhang
Summary: Novel acid-base bi-functional mesoporous SBA-15 catalysts with four morphologies were synthesized by Mg incorporation and sulfated zirconia (SZ) grafting, showing significant improvement in base strength and effective Bronsted/Lewis acid strength. The catalysts could be applied to fructose conversion into 5-hydroxymethylfurfural (5-HMF) with a high yield of 98.6%, providing an economical and feasible method for large-scale biomass conversion.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Physical
G. Dhinagaran, G. Harichandran, S. Prashanna Suvaitha, K. Venkatachalam
Summary: Selective oxidation of veratryl alcohol to veratraldehyde using a newly developed CuO/SBA-15 catalyst showed high conversion and selectivity. The catalyst demonstrated activity towards substrates containing both primary and secondary alcohols, but selectively oxidized the secondary alcohol when both were present on adjacent carbons.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Applied
Luis M. M. Correia, Mohamed M. A. Soliman, Carlos M. Granadeiro, Salete S. Balula, Luisa M. D. R. S. Martins, Armando J. L. Pombeiro, Elisabete C. B. A. Alegria
Summary: The neutral trichloro[hydrotris(1-pyrazolyl)methane]vanadium(III) C-scorpionate complex was immobilized on amine-functionalized mesoporous silica to form a composite, which showed higher catalytic performance in peroxidative oxidation of benzyl alcohol compared to the analogous homogeneous complex. Various parameters were studied, leading to overall yields of around 60% and high turnover numbers. The composite also exhibited good recyclability and structural stability, making it a promising catalyst for other oxidative reactions.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
He Kai, Liu Shijia, Zhao Guiyan, Qin Yucai, Bi Yanfeng, Song Lijuan
Summary: This study investigated the effect of Ni-W catalysts with different Ni:W ratios on CO2 hydrogenation, and found that a small amount of W can significantly improve the dispersion of Ni on the support, while promoting selective CH4 formation. This provides a new clue for fabricating efficient CO2 conversion materials.
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
(2022)
Article
Nanoscience & Nanotechnology
Jun Shen, Stefan Lauterbach, Christian Hess
Summary: Efficient nontoxic catalysts for low-temperature NH3 selective catalytic reduction (NH3-SCR) applications were prepared by depositing CuO-CeO2 on a mesoporous SBA-15 support. In situ spectroscopy revealed the decomposition mechanisms of nitrate and their influence on the catalytic activity.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Chemical
Gazali Tanimu, Ahmed T. Al-Qathmi, Abdullah M. Aitani, Sachio Asaoka, Ziyauddin S. Qureshi, Hassan Alasiri
Summary: A Ni-BiOx/SBA-15 catalyst synthesized using a co-impregnation method was used for the oxidative dehydrogenation of n-butenes to 1,3-butadiene. The catalyst had a layered structure and formed an active and selective NiO species. The desired route for butene conversion was achieved through adsorption, hydrogen abstraction, and selective formation of 1,3-butadiene. The catalyst exhibited high conversion and selectivity at specific reaction conditions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Applied
A. Taratayko, Yu. Larichev, V. Zaikovskii, N. Mikheeva, G. Mamontov
Summary: The catalytic activity of SBA-15-supported silver and/or ceria catalysts in the reduction of 4-nitrophenol under mild conditions is enhanced by the developed Ag-CeO2 interface, which stabilizes small particles in the ordered SBA-15 structure and facilitates the cooperation of silver and ceria active sites to achieve efficient catalysis at room temperature and ambient pressure.
Article
Chemistry, Applied
Albano M. Lacoste, Ines S. Tiscornia, Magali Bonne, Laure Michelin, Benedicte Lebeau, Alicia V. Boix
Summary: In this study, SBA-15 and SBA-16 ordered mesoporous silicas were synthesized with different morphologies and copper and cerium oxides were introduced using incipient wetness impregnation and solid-state impregnation methods. The best catalytic performance was achieved with the incipient wetness impregnation method, particularly with the fiber-shaped SBA-15 catalyst. The irregular-shaped SBA-16 catalyst also showed good catalytic activity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Energy & Fuels
P. Tamizhdurai, V. L. Mangesh, Aboud Ahmed Awadh Bahajjaj, Umamaheswari Rajai, Mani Govindasamy, R. Vasanthi, R. Kumaran, T. Augustine
Summary: Investigated the ability of heterogeneous organo-catalysts, including one percent palladium supported on mesoporous material SBA-15 with 1-Ethyl-3-methylimidazolium tri-fluoromethanesulfonate, to produce 1,3-butadiene from ethanol. The catalysts were prepared by mixing SBA-15 and metal precursors and crushed in solid state. The catalytic performance was evaluated in a fixed-bed reactor, achieving a selectivity of up to 82% for 1,3-butadiene due to the coupling activity of Pd and ionic liquid species in the porous structure of SBA-15.
Article
Chemistry, Multidisciplinary
Wenchao Lee, Chieh-Chao Yang, Soofin Cheng
Summary: Tungstated zirconia supported on mesoporous SBA-15 through impregnation in supercritical ethanol shows improved catalytic performance in n-pentane isomerization. The optimized loading of WO3/ZrO2/SBA-15 and proper mole fraction of hydrogen in the reactants play crucial roles in enhancing catalytic activity. Additionally, hydrogen not only serves as a reactant but also helps to regenerate active sites during the isomerization process.
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2021)
Review
Pharmacology & Pharmacy
Zhimin Luo, Xingwu Zhou, Kalpana Mandal, Na He, Wally Wennerberg, Moyuan Qu, Xing Jiang, Wujin Sun, Ali Khademhosseini
Summary: Tumor organoids represent an emerging approach for modeling cancer in vitro, aiming to recapitulate the pathophysiological features of the tumor microenvironment in human patients. Various engineering strategies, including biomaterial-based, microfabrication-assisted, and synthetic biology-facilitated techniques, have been demonstrated for constructing tumor organoids. These engineered tumor organoids have shown applications in basic cancer research, cancer drug discovery, and personalized medicine, with challenges and future opportunities for broader applications.
ADVANCED DRUG DELIVERY REVIEWS
(2021)
Article
Environmental Sciences
Xia Cui, Hua Shu, Lu Wang, Guoning Chen, Jili Han, Qianqian Hu, Kamran Bashir, Zhimin Luo, Chun Chang, Jia Zhang, Qiang Fu
Summary: The study developed a novel adsorbent CNT@CS/P(MAA) that can effectively identify progesterone in complex water samples, with adsorption performance independent of pH and environmental temperature. By using solid phase extraction sorbent combined with HPLC, the method showed good linearity and low detection limit for enriching progesterone from wastewater samples.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biochemical Research Methods
Na He, Xuan Li, Zhimin Luo, Lu Wang, Xia Cui, Qiang Fu
Summary: In this study, three-dimensional porous and homogeneous molecularly imprinted polymer foams (MIPFs) were fabricated using inexpensive polyurethane foam (PU) as the carrier. The MIPFs showed excellent stability and adsorption properties, and were able to efficiently enrich and detect MCT in herbal plants. They hold great potential for the selective separation and detection of MCT in complex matrices such as traditional Chinese medicine samples and food samples.
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
(2022)
Article
Pharmacology & Pharmacy
Zhimin Luo, Guoning Chen, Ke Yang, Lu Wang, Xia Cui, Jiameng Xu, Qiang Fu
Summary: A method without organic solvents and catalysts was developed to synthesize silica-encapsulated glucose-oxidase-coated magnetic nanoparticles through self-assembly. The encapsulated enzyme showed good linear performance and recoveries in detecting glucose in urine samples. This study demonstrates the potential of the self-assembly method and provides a promising tool for glucose detection and diabetes monitoring.
Article
Electrochemistry
Zhimin Luo, Na He, Xueqiang Chen, Liangwei Yu, Yirong Ma, Xia Cui, Jiameng Xu, Aiguo Zeng
Summary: This study constructed an electrochemical biosensing platform to simultaneously detect different glucocorticoids in wastewater, addressing the challenge posed by poor electro-active and structural differences of glucocorticoids. The surface of the electrode, prepared by polymerizing L-arginine doped with carbon quantum dots (QDs), allows for direct capture and reduction of glucocorticoids. The fast electron transfer of QDs and the signal magnification effect of Arg enable sensitive and direct detection of dexamethasone and hydrocortisone. The prepared GCE-Arg-PSSA-QD sensor exhibited favorable analytical performance in both experiments and real wastewater samples.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Ziyan Li, Die Ma, Yawei Zhang, Zhimin Luo, Lixing Weng, Xianguang Ding, Lianhui Wang
Summary: The study developed a novel 2D magnetic platform, named HARVEST, for improving the capture efficiency of extracellular vesicles and realizing visible signal conversion, enhancing the detection performance of extracellular vesicles. The number of extracellular vesicles can be rapidly determined through smartphones, providing strong support for cancer diagnosis.
ANALYTICAL CHEMISTRY
(2022)
Article
Energy & Fuels
Zhimin Luo, Jinlong Ma, Zhiqiang Jiang
Summary: This paper establishes an optimal dispatch model for a multi-energy power system consisting of thermal power, wind power, and a pumped-storage power station. The model improves the traditional dynamic programming method by introducing penalty function and dynamic value of the state variable, ensuring power supply reliability and optimizing energy utilization. The model solves the challenges of a high proportion of wind power systems with a pumped-storage power station and relevant constraints, resulting in a flexible operation of the power grid.
Article
Biochemical Research Methods
Xia Cui, Qun Wang, Miao Guo, Ke Yang, Liangwei Yu, Zhimin Luo, Chun Chang, Qiang Fu
Summary: A simple, fast and sensitive method combining molecularly imprinted solid-phase extraction and high-performance liquid chromatography (MISPE-HPLC) was developed for the selective determination of progesterone in cosmetics. The method demonstrated excellent adsorption capacity, good selectivity, and fast mass transfer rate for progesterone, while eliminating interference from co-existing substances.
JOURNAL OF CHROMATOGRAPHIC SCIENCE
(2022)
Article
Chemistry, Analytical
Lu Wang, Xia Cui, Jiameng Xu, Gege Wang, Miao Guo, Liangwei Yu, Ke Yang, Zhimin Luo, Aiguo Zeng, Guoning Chen, Jia Zhang, Qiang Fu
Summary: In this study, a novel amino-functionalized aluminum-based metal organic framework material was fabricated as an efficient adsorbent system for selective enrichment and detection of hydrocortisone in pharmaceutical wastewater. The developed method showed a low limit of detection and satisfactory recoveries, providing a prospective solution for the analysis of strong bioactive contaminants in pharmaceutical wastewater.
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2022)
Article
Electrochemistry
Miao Guo, Xia Cui, Lu Wang, Ke Yang, Jiameng Xu, Liangwei Yu, Zhimin Luo, Aiguo Zeng, Jia Zhang, Qiang Fu
Summary: This study presents a simple, cheap, and sensitive electrochemical sensor based on a nanocomposite for the direct detection of low concentrations of 17 beta-estradiol (E2) in wastewater. The sensor utilizes a nanocomposite sensing electrode developed through electrochemical in situ polymerization. The combination of poly-L-tyrosine (P(L-tyr)) with E2 enables fast and direct detection, while overcoming interferences from complex matrix. The sensor exhibits good stability and meets the requirements for sensitive detection of E2 in complex matrix.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Engineering, Environmental
Xia Cui, Zhimin Luo, Miao Guo, Jiameng Xu, Lu Wang, Guoning Chen, Gege Wang, Chun Chang, Aiguo Zeng, Jia Zhang, Qiang Fu
Summary: In this study, a method using poly-L-cysteine (P(L-Cys)) as a multi-identification unit was proposed to sensitively detect multiple steroid hormones. The P(L-Cys) obtained through electropolymerization possessed abundant sulfonic acid groups, allowing it to be used as a synthetic receptor for detecting hormones in serum. The results showed that this method could simultaneously detect different types of hormones without interference.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Ke Yang, Guoning Chen, Lu Wang, Miao Guo, Jiameng Xu, Yirong Ma, Zhimin Luo, Aiguo Zeng, Qiang Fu
Summary: In this study, a nanoreactor based on ZIF-8 was developed to immobilize cholesterol oxidase and horseradish peroxidase. This co-immobilization strategy improved the stability and reusability of the enzymes, making it suitable for multi-step catalysis.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Zhimin Luo, Xueqiang Chen, Yirong Ma, Fan Yang, Na He, Liangwei Yu, Aiguo Zeng
Summary: This study developed a fast, simple, sensitive and accurate method for the determination of PAs in scented teas. Selective recognition and efficient enrichment of different PAs were achieved using MIP-SPME fibers, and the method was further optimized for improved accuracy and precision. The developed method is of great importance for the monitoring and control of PAs in scented teas.
FRONTIERS IN CHEMISTRY
(2022)
Article
Polymer Science
Tong Li, Dianwei Wang, Meng Meng, Zhiyu Yang, Zhimin Luo, Zhen Li, Fei Li, Cong Liu, Kai Hao, Xuan Pang, Huayu Tian, Xuesi Chen
Summary: Increasing infiltration of CD8(+) T cells can enhance the response rate to immune checkpoint blockade therapies. In this study, cuproptosis, induced by a newly defined Cu-coordinated covalent organic framework (COF), was shown to effectively increase CD8(+) T cell infiltration. The COF exhibited two functions: Cu2+ acted as a Fenton-like reagent to generate cytotoxicity by catalyzing the production of reactive oxygen species (ROS), and residual Cu2+ depleted cellular glutathione to enhance intracellular oxidative stress, further enhancing the Fenton-like effect. The synergy of these two functions achieved immunogenic cell death and improved anti-tumor effects.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Mathematics, Applied
Zhimin Luo, Qiru Wang, Xiuli Wu
Summary: In this paper, we establish the existence of nonoscillatory solutions to neutral dynamic equations with positive and negative coefficients on time scales. Two examples are included to illustrate our presented results. The fixed point technique plays a key role in our approaches.
