Article
Chemistry, Multidisciplinary
Chuanqing Zhao, Fangke Qiao, Jiawei Ji, Shifeng Deng, Huimin Qi
Summary: This study focuses on the synthesis of silicon-containing polyarylacetylene (PSA) resin, which enhances the heat resistance and mechanical properties of polymer reinforcement phase. The honeycomb-like porous SiO2/PSA aerogels, prepared through click reaction, gel aging, freeze-drying, and curing, possess low density, high porosity, low thermal conductivity, and excellent thermal insulation performance. Compared to other polymer aerogels and materials, SiO2/PSA composite aerogel exhibits high temperature resistance, compressive strength, and has potential applications in the aerospace industry.
Review
Polymer Science
Thierry Woignier, Juan Primera, Adil Alaoui, Philippe Dieudonne, Laurent Duffours, Isabelle Beurroies, Sylvie Calas-Etienne, Florence Despestis, Annelise Faivre, Pascal Etienne
Summary: Silica aerogels are materials with exceptional characteristics, such as ultra-low density, high surface area, high porosity, high adsorption, and low thermal conductivity. The fractal structure of silica aerogels can vary depending on synthesis conditions, with the fractal dimension typically ranging between 1.6 and 2.4. X-ray and neutron scattering measurements have shown that silica aerogels can exhibit a fractal structure over one or more than two orders of magnitude in length.
Article
Biochemistry & Molecular Biology
Tetsuo Yamaguchi, Taeho Kim, Jin-Kuen Park, Jae-Min Oh
Summary: The release of ferulic acid from surface-functionalized hollow nanoporous silica particles (HNSPs) was studied. HNSPs were synthesized in the presence of polymer and surfactant templates, and the pores and surfaces were modified through silane coupling reactions. The release rates in DI water and ethanol were highest for HNSP, followed by PTS-HNSP, and lowest for OTS-HNSP.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Pharmacology & Pharmacy
Dohyun Kim, Jain Koo, Eun-Ju Yang, Kyusun Shim, Yee Yee Tin, Ziming Lin, Kyung Taek Oh, Dong Hee Na
Summary: The study aimed to develop a tablet formulation of mesoporous silica particles (MSPs) that can effectively trap and enhance the dissolution of celecoxib. Optimal conditions for drug loading into MSPs were investigated and the crystallinity of the drug was evaluated. The anti-inflammatory activity and dissolution of the MSP tablet were compared with commercial celecoxib. The results showed that the MSP formulation successfully increased drug solubility and exhibited comparable activity to celecoxib.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Applied
Kai Yang, Mohanapriya Venkataraman, Jana Karpiskova, Yuji Suzuki, Sana Ullah, Ick-Soo Kim, Jiri Militky, Yuanfeng Wang, Tao Yang, Jakub Wiener, Guocheng Zhu, Juming Yao
Summary: Embedding of functional materials into aerogel powders was achieved via the filtration method. The aerogel had an impact on the molecular structure of the embedded polyethylene glycol (PEG). The crystallinity of PEG was reduced in aerogel powders, leading to a decrease in decomposed temperature and thermal capacity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
E. Noseda Grau, G. Roman, J. Juan, A. Diaz Company, S. Simonetti
Summary: The adsorption of ampicillin drug on SiO2 surfaces was studied using Density Functional Theory calculations, showing improved adsorption when the surface is functionalized with amino groups, and greater stability under basic pH conditions.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Review
Chemistry, Multidisciplinary
Noremylia Mohd Bakhori, Zarini Ismail, Mohamad Zaki Hassan, Rozzeta Dolah
Summary: Currently, aerogel is a globally recognized and intriguing material with a network of nanoporous structure, leading to various functional properties and extensive applications. Categorized into inorganic, organic, carbon, and biopolymer types, aerogels can be modified by incorporating advanced materials and nanofillers. This review critically discusses the basic preparation of aerogel via sol-gel reaction, and presents a modified standard method to produce diverse aerogels with different functionalities. It also emphasizes the biocompatibility of various aerogels and highlights their biomedical applications as drug delivery carriers, wound healing agents, antioxidants, anti-toxicity agents, bone regeneratives, cartilage tissue activities, and in dental fields. The review indicates that the clinical research on aerogel in the biomedical sector still has significant room for improvement. Moreover, the application of aerogels as tissue scaffolds and drug delivery systems is preferable due to their remarkable properties. Advanced studies in areas such as self-healing, additive manufacturing (AM) technology, toxicity, and fluorescent-based aerogels are crucially important and are further discussed.
Article
Engineering, Environmental
Zuzanna Kantor, Tingting Wu, Zhihui Zeng, Sabyasachi Gaan, Sandro Lehner, Milijana Jovic, Anne Bonnin, Zhengyuan Pan, Zahra Mazrouei-Sebdani, Dorina M. Opris, Matthias M. Koebel, Wim J. Malfait, Shanyu Zhao
Summary: Polymer aerogels are a promising alternative to brittle silica aerogels, but they lack high-temperature stability. Researchers have developed a new type of aerogel composite with unique structure and excellent properties, which could be used in applications requiring high mechanical strength, low thermal conductivity, and low dielectric constant.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Jeongmyeong Kim, Minji Yun, Byeongju Song, Yongju Yun
Summary: In this study, the enantioselective hydrogenation of (E)-2-methyl-2-butenoic acid over cinchonidine-modified Pd catalysts was investigated. The use of amine-functionalized mesocellular silica foam (NH2-MCF) support resulted in improved catalytic activity and enantioselectivity.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Polymer Science
Kun-Hao Luo, Min-Si Yan, Chen-An Chang, Chih-Wei Weng, Jui-Ming Yeh
Summary: Research on flexible silica aerogels (FSAs) has been conducted to explore their thermal insulation, low density, and high elasticity. The physical properties of FSAs, such as density, thermal conductivity, mechanical strength, and surface wettability, depend on the preparation conditions. This study focuses on fine-tuning the physical properties of FSAs using two modifiers, MTMS and TMES.
Article
Materials Science, Multidisciplinary
Xianbao Shi, Ping Zhang, Lingqiong Wu, Xiangyu Zhao, Jinzhu Jiang, Jing Li, Bo Yang
Summary: Mesoporous silica synthesized using biomimetic method, particularly the biomimetic large mesoporous silica (BL-MS), shows advantages in drug delivery, such as stronger adsorption capacity and better oral bioavailability, compared to commonly used mesoporous silica nanoparticles (MSNs). The large pores in BL-MS significantly improve the dissolution of poorly water-soluble drugs, demonstrating its potential in enhancing drug delivery efficiency.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Junzong Feng, Bao-Lian Su, Hesheng Xia, Shanyu Zhao, Chao Gao, Lukai Wang, Osarenkhoe Ogbeide, Jian Feng, Tawfique Hasan
Summary: Aerogels, as a lightweight and porous nanomaterial, have attracted interest in both academia and industry. However, their modest mechanical durability poses challenges, which bottom-up additive manufacturing technology has the potential to address. This technology has led to the emergence of a new interdisciplinary research area combining aerogel and printing technology, pushing the boundaries of structure and performance while broadening their application scope.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Engineering, Environmental
Sasan Rezaei, Ali M. Zolali, Amirjalal Jalali, Chul B. Park
Summary: This study presents a rapid and simply prepared TMSPMA-based aerogel with ultra-low density, high mechanical properties, extremely low thermal conductivity, and high hydrophobicity achieved by manipulating the nano-architecture of the aerogel structure. Two novel approaches, including post-gelation free radical self-curing method and changing the precursor nature, were explored to optimize the connectivity state.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Green & Sustainable Science & Technology
Mary K. Carroll, Ann M. Anderson, Sri Teja Mangu, Zineb Hajjaj, Margeaux Capron
Summary: The study demonstrates various methods for preparing aesthetically pleasing monolithic silica aerogels and proposes innovative designs for their incorporation into glazing units. These methods can improve visible light transmission, achieve uniform aerogel formation, reduce thickness, and incorporate artistic effects such as dyes and laser etching to compensate for surface imperfections.
Article
Chemistry, Multidisciplinary
Aziz Maleki, Shayesteh Bochani, Mehraneh Kermanian, Pooyan Makvandi, Mir-Jamal Hosseini, Mehrdad Hamidi, Ali Kalantari-Hesari, Hamid Reza Kheiri, Mohammad Reza Eskandari, Maryam Rosta, Virgilio Mattoli, Seyed Hojjat Hosseini
Summary: This study aimed to develop a chitosan-grafted mesoporous silica material to enhance drug dissolution and investigate its effects in in vitro and in vivo conditions. The results showed successful loading of the drug into the silica host and no toxic effects on human cell lines. Furthermore, significant reduction in blood glucose was observed after oral administration of the biocomposites, and histopathological studies indicated no adverse effects on kidney and liver.
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
(2022)
Article
Chemistry, Applied
Lulu Wan, Gan Ye, Yuying Chang, Zhaohan Yang, Guangming Shi, Qiuli Zhang, Jin Wang
Summary: This study developed an efficient approach to upgrade the oxidative desulfurization (ODS) performance of Zr-MOFs with proton stimulation. Experimental results showed that the introduction of protons can significantly improve the ODS efficiency. This work provides a facile and efficient strategy for enhancing the ODS performance of pristine MOFs.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Qiqi Lu, Xiu-Zhi Wei, Qi Zhang, Xinghua Zhang, Lungang Chen, Jianguo Liu, Yubao Chen, Longlong Ma
Summary: The application of Pd-M bimetallic clusters in the selective hydrogenation reaction was investigated, and the Pd0.6Ni@S-1 catalyst was found to exhibit high selectivity in the conversion of phenylacetylene to styrene. The confinement effect of zeolite inhibited over-hydrogenation and improved the stability of the catalysts. Furthermore, the solvent properties also influenced the product distribution.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Review
Chemistry, Applied
Bo Li, Lumin Hong, Changdi Jing, Xianyang Yue, Huabo Huang, Qianqian Jiang, Jianguo Tang
Summary: MOF materials with adjustable pore structure and polymetallic sites have been explored as electrocatalysts for OER. Bimetallic materials show higher electrocatalytic activity than monometallic materials, while carbon-coated and doped MOF catalysts exhibit stable and good OER activity. The synergistic interaction between polymetallic active sites effectively improves the intrinsic activity of MOF on OER.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shichun Gu, Ruyi Wang, Junxiong Zhang, Hairong Dong, Liping Deng, Xue Wang, Yapeng He
Summary: In this study, monodispersed hollow mesoporous organosilica nanospheres with controlled core cavity and mesoporous shell were successfully synthesized. These hollow nanospheres showed a high adsorption capacity for Pb2+ in water solution and exhibited acceptable recycling and stability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Lucie Havelkova, Bogdana Bashta, Michaela Vankova, Jiri Zednik, Jiri Brus, Jan Svoboda, Alice Vagenknechtova, Jan Sedlacek
Summary: An atom-economic one-step chain-growth coordination homopolymerization providing high yields of functionalized hyper-cross-linked polyacetylenes with a permanent micro/mesoporous texture and a BET area of up to 1062 m2/g is reported. The homopolymerization is highly compatible with the heteroatom groups of the monomers and allows the preparation of well-defined porous networks with a wide spectrum of univalent groups.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shirui Pang, Yuxin Liu, Zhe Zhang, Yuxin Li, Chunguang Li, Zhan Shi, Shouhua Feng
Summary: This study focuses on using a functional separator to suppress the shuttle effect of soluble lithium polysulfides in Li-S batteries. It is found that the functionalized sulfonic acid group not only accelerates the conduction of lithium ions, but also repels polysulfide anions through electrostatic interactions. The performance of the batteries is significantly improved with the use of this functionalized separator.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Pingping Li, Lei Han, Donghun Kim, Kemal Celebi
Summary: This study presents a fast synthetic strategy for the preparation of high-quality platelike MFI crystals using a thin-wall tubular reactor. The strategy is efficient, time-saving, and can be optimized, making it applicable to the preparation and optimization of other important materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Haitao Yin, Wei Wang, Yuxin Li, Hu Wen, Shuang Chen, Nanzhe Jiang
Summary: This study presents a template-free and solid-state-like crystallisation method for the synthesis of ZSM-5 zeolite, which can be scaled-up in production. Mechanical mixing of starting material components improves the dispersion of materials, leading to ZSM-5 zeolite with high crystallinity and size uniformity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Congli Li, Jiang Wang, Zhenfei Wang, Jinxiang Dong, Qi Shi
Summary: This study investigates the evolution and autoreduction behavior of Cu species in CuCl/NaY adsorbent during vacuum thermal activation. It is found that Cu species migrate from supercages to the nearby plane of the six-membered ring connecting the supercage and sod cage during vacuum activation. At 150 degrees C, vacuum autoreduction occurs, resulting in the formation of Cu+Cl- species. The results provide reference for the preparation of pi-complex adsorbents.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Irena Khatrin, Iman Abdullah, Alan J. Mccue, Yuni K. Krisnandi
Summary: Hierarchical porous system with two types of mesopores provides a solution to the diffusion limitation in conventional zeolites. Cobalt oxide impregnated hierarchical ZSM-5 zeolite samples with intra- and inter-crystalline mesopores were synthesized using two different strategies. The physicochemical properties of the modified catalysts were analyzed, revealing distinct features given by the two mesoporous configurations. Catalytic activity analysis showed that Co-oxide/ZSM-5 with inter-crystalline mesopores exhibited higher activity in methane partial oxidation reaction compared to Co-oxide/ZSM-5 with intra-crystalline mesopores.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Nataliia Reinders, Martin Durovic, Pavla Honcova, Zaneta Dohnalova, Jana Luxova, Stanislav Slang, Jhonatan Rodriguez-Pereira, Petra S. Sulcova
Summary: This study presents a new method for preparing a microporous Ni2P/C catalyst with high catalytic activity. The redox reaction and carbon matrix formation during high-temperature treatment contribute to the stability and activity of the catalyst. Experimental and analytical results suggest that the microporous structure of the composite plays a crucial role in its catalytic performance. These findings are important for practical applications of efficient hydrogen production by water electrolysis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Ana Raquel Bertao, Viktoriya Ivasiv, Cristina Almeida-Aguiar, Patricia R. Correia, Antonio M. Fonseca, Manuel Banobre-Lopez, Fatima Baltazar, Isabel C. Neves
Summary: This study developed a zeolite-based delivery system (ZDS) using silver and 5-Fluorouracil as antimicrobial and antineoplastic agents. The ZDS was characterized and its antimicrobial properties were investigated, showing better antibacterial effectiveness for the ZDS containing both silver and 5-FU.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Naonobu Katada, Nobuki Ozawa, Etsushi Tsuji, Keigo Kanehara, Akiho Otsuka, Taiga Sakamoto, Kirari Umezawa, Hitoshi Matsubara, Satoshi Suganuma, Momoji Kubo
Summary: First principles calculations were used to investigate the pathway for methylation of benzene with methane catalyzed by MFI type zeolite-supported Co species. The strong adsorption of benzene on Co is found to lower the activation energy for methane dissociation and promote the formation of toluene precursor. The activation energy of methane dissociation is also affected by the Al-Al distance.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Yuan Liu, An T. Ta, Kyoung Chul Park, Shenyang Hu, Natalia B. Shustova, Simon R. Phillpot
Summary: We use density functional theory to investigate the interactions of cerium, americium, and curium cations with crown ethers. Our results demonstrate that crown ethers can capture cerium, americium, and curium ions, and modifying the crown ether structure by substituting nitrogen atoms for oxygen atoms significantly increases their binding energies with radionuclides.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Zhengwu Peng, Shixing Wang, Yihui Wu, Xiang Liu, Hongliang Liu, Dekun Zhang, Likang Fu
Summary: An efficient adsorbent for recovery of germanium was prepared and characterized in this study. The adsorption behavior of Ge(IV) on the adsorbent was analyzed, and the results showed that it follows pseudo-secondary kinetic model and Langmuir isotherm model. The adsorbent exhibited good anionic anti-interference ability and can still maintain high adsorption efficiency after repeated adsorption.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)