Article
Chemistry, Applied
Shiyuan Peng, Baihao Huang, Yizhen Lin, Gongcui Pei, Lijuan Zhang
Summary: This study investigated the application of mesoporous silica nanoparticles (MSN) in drug delivery. The results showed that the structure and surface modification of MSN affect the drug loading and release properties. Hexagonal pore MSN-NH2 and MSN-PDA demonstrated better combined release performance in terms of pH-responsive performance and sustained release effect.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Biophysics
Riyasudheen Nechikkattu, Jungwon Kong, Young-Shin Lee, Hyun-Jung Moon, Jae-Ho Bae, Sun-Hee Kim, Sung Soo Park, Chang-Sik Ha
Summary: Tunable multi-responsive mesoporous silica nanoparticles were prepared through post-condensation/surface modification of MCM-41 nanoparticles. These nanoparticles exhibited excellent drug-loading capacity and dual responsive behavior, showing potential for cancer therapy.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Fatemeh Kabiri, Soroush Mirfakhraee, Yalda H. Ardakani, Rassoul Dinarvand
Summary: This study investigated the loading capacity and release profiles of curcumin and doxorubicin hydrochloride into hollow mesoporous silica nanoparticles through a co-delivery system. The results suggest that HMSNs can be a suitable candidate system for the delivery of hydrophilic drugs in cancer therapies, but may not be suitable for hydrophobic drugs due to rapid release.
JOURNAL OF NANOPARTICLE RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Carmen Racles, Mirela-Fernanda Zaltariov, Dragos Peptanariu, Tudor Vasiliu, Maria Cazacu
Summary: Mesoporous silica nanoparticles (MSNs) with different functional groups were synthesized and investigated for the encapsulation and release of anticancer drug Doxorubicin (Dox). The results showed that MSNs with thiol and glucose groups had high loading efficiency and high release rates at pH 5. In vitro experiments demonstrated strong cytotoxic effects of these loaded silica nanoparticles on cancer cells.
Review
Pharmacology & Pharmacy
Avelino Corma, Pablo Botella, Eva Rivero-Buceta
Summary: This article introduces silica-based nanomedicines and their significant role in cancer treatment. Silica nanoparticles have been proposed as safe and effective vehicles for delivering antitumor drugs due to their stability, high surface area, and easy functionalization. These silica nanomedicines have specific mechanisms for intracellular drug release, allowing for precise control of drug discharge. By responding to endogenous and exogenous stimuli, these nanomedicines can achieve selective delivery to cancer cells.
Article
Nanoscience & Nanotechnology
Jialang Zhuang, Siqi Chen, Ye Hu, Fan Yang, Qin Huo, Ni Xie
Summary: The study developed tumor-targeted and redox-responsive mesoporous silica nanoparticles (MSNs) for the co-delivery of Doxorubicin and siTIE2 to improve the treatment of metastatic breast cancer. The controlled release of drugs within cells was achieved through redox-sensitive disulfide bonds, resulting in enhanced therapeutic effects in vitro and in vivo, including lower IC50 values and improved anti-tumor and anti-metastatic effects.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2021)
Article
Food Science & Technology
Yingjun Cui, Xiangyou Wang, Meng Cheng, Yanli Guo, Rongfei Zhang
Summary: Mesoporous silica nanoparticles (MSNPs) with different pore structures were developed to carry and release thymol, enhancing its bioavailability. The loading capacity of thymol-loaded MSNPs reached the highest when the ratio of thymol to MSNPs was 3:1. The encapsulation of thymol improved its stability and the release behavior followed Fickian diffusion process. Thymol-loaded MSNPs showed remarkable antimicrobial efficiency against S. aureus.
Article
Chemistry, Physical
Montserrat Colilla, Maria Vallet-Regi
Summary: Bacterial antimicrobial resistance is a major threat to global health, and the stalled antibiotic research pipeline has worsened the situation. Nanotechnology offers a potential solution by using nanocarriers to transport and deliver antimicrobials to overcome bacterial resistant barriers. Mesoporous silica nanoparticles (MSNs) have attracted attention due to their unique features. This perspective article outlines recent research in the design and development of organically modified MSNs to fight bacterial infections, addressing the current challenges and future perspectives.
CHEMISTRY OF MATERIALS
(2023)
Article
Pharmacology & Pharmacy
Jiayu Zhou, Yishu Zhai, Jumei Xu, Tian Zhou, Lian Cen
Summary: This study investigated the feasibility of microfluidic preparation of PLGA composite microspheres with mesoporous silica nanoparticles (MSNs) to finely manipulate drug release behaviors. The results showed that PLGA-MSNs achieved sustained release for 4 months without any burst release, while PLGA microspheres encountered a burst release in the mid-term of the studied duration. Incorporating MSNs into PLGA microspheres via microfluidics could be an efficient strategy to finely tune drug release behavior.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2021)
Review
Pharmacology & Pharmacy
Alba Garcia-Fernandez, Felix Sancenon, Ramon Martinez-Manez
Summary: Respiratory diseases have become a major clinical concern worldwide and nanomedicine shows promise in overcoming the limitations of current lung therapies by enhancing drug bioavailability and reducing side effects. However, more efforts are needed to achieve effective pulmonary drug delivery despite the different approaches that have been developed.
ADVANCED DRUG DELIVERY REVIEWS
(2021)
Article
Pharmacology & Pharmacy
Giorgia Figari, Jose L. M. Goncalves, Herminio P. Diogo, Madalena Dionisio, Jose Paulo Farinha, Maria Teresa Viciosa
Summary: The impact of surface functionalization on mesoporous silica nanoparticle (MSN) carriers and the release of Fenofibrate (FNB) was investigated. The MSNs were modified with either (3-aminopropyl) triethoxysilane (APTES) or trimethoxy(phenyl)silane (TMPS), and the density of the functional groups was measured. The FNB loaded in the MSNs with ordered cylindrical pores showed amorphization, and the glass transition temperature slightly changed depending on the surface modification. Dielectric studies revealed multiple relaxations associated with different FNB populations and correlated their mobility with drug release profiles.
Article
Chemistry, Applied
Rui Li, Xianbin Mei, Xiangfeng Li, Changli Zhang, Liping Ruan
Summary: A novel bolt-like-blocking nanovalve based on mesoporous silica nanoparticles has been developed as a drug carrier. The peptide-modified nanoparticles show no obvious cytotoxicity and can be triggered for release by GSH. In addition, they have shown GSH-responsive capability in inducing cell apoptosis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Ping Huang, Daizheng Lian, Hualin Ma, Nansha Gao, Limin Zhao, Ping Luan, Xiaowei Zeng
Summary: Mesoporous silica nanoparticles, with their simple synthesis, biocompatibility, and high surface area, have been developed as drug carriers for targeted and controlled drug release. By designing gated systems using various materials, these nanoparticles offer a new approach for selective delivery of antitumor drugs. Challenges and future prospects of gated mesoporous silica nanoparticles are discussed for their potential in drug delivery systems.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Selvakumari Ulagesan, Madhappan Santhamoorthy, Thi Phan Vy Phan, Krishnapandi Alagumalai, Kokila Thirupathi, Seong-Cheol Kim, Taek-Jeong Nam, Youn-Hee Choi
Summary: In this study, a mesoporous silica material containing amidoxime ligand groups was successfully synthesized through surface modification. The resulting SBA-15@AMI NPs exhibited a high concentration of amidoxime ligands on the surface, making them suitable for pH-responsive drug delivery applications in cancer therapy.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Candace M. Day, Martin J. Sweetman, Yunmei Song, Sally E. Plush, Sanjay Garg
Summary: Functionalized nanoparticles have shown promising potential in targeted therapy through studies on loading capacity and release kinetics, contributing to the development of future stimuli-responsive nano-drug delivery systems.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Biomaterials
Sofia Santi, Ines Mancini, Sandra Dire, Emanuela Callone, Giorgio Speranza, Nicola Pugno, Claudio Migliaresi, Antonella Motta
Summary: A bio-inspired multifunctionalized silk fibroin (BMS) was synthesized to mimic the interaction of proteins in basement membranes, and its chemical structure and application performance were analyzed.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
L. Oulmaati, K. Bouziane, A. Bouajaj, M. R. Britel, F. Enrichi, C. Armellini, A. Chiappini, M. Maaza
Summary: The optical properties of Tb3+/Yb3+ co-doped 70SiO2 - 30HfO2 glass and glass-ceramic thin films prepared by dip coating were investigated using transmittance measurements. It was found that increasing the concentration of rare earth ions led to a slight increase in refractive index and thickness variation. The energy bandgap was around 3 eV, with a slightly higher bandgap for glass films compared to glass-ceramic films.
Article
Materials Science, Multidisciplinary
Valentina Piotto, Lucio Litti, Alexander Omelyanchik, Alessandro Martucci, Piero Riello, Davide Peddis, Moreno Meneghetti
Summary: Measurement of magnetic nanoparticles is important for their application. Conventional techniques like SQUIDs or VSMs require large amounts of materials and cannot explore low production syntheses. In this study, optically detected magnetophoresis was used to characterize the magnetic properties of nanoparticles obtained from laser ablation. The results show that considering the size-dependent extinction properties of nanoparticles is necessary, especially for polydisperse samples.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Physical
Giorgio Speranza, Gaetano Roberto Mele, Pietro Favia, Cecilia Pederzolli, Cristina Potrich
Summary: Advanced materials have the potential to improve innovative analytical devices, such as biosensors or lab-on-a-chip devices, particularly in the context of liquid biopsies. This study tested plasma deposition processes for introducing primary amines on silicon surfaces and investigated the effects of different gas mixtures on the performance of the surfaces. The findings suggest that using binary or ternary mixtures of gases could lead to promising results.
Review
Chemistry, Physical
Giorgio Speranza
Summary: This article introduces the synthesis of single-layer graphene and the application of quantum technologies, focusing on the use of photoelectron spectroscopies such as X-ray photoelectron spectroscopy (XPS) for characterizing carbon nanomaterials.
Article
Materials Science, Ceramics
Francesco Enrichi, Michele Cassetta, Nicola Daldosso, Elti Cattaruzza, Pietro Riello, Rustem Zairov, Alberto Vomiero, Giancarlo C. Righini
Summary: The role of material structure in the energy transfer between Ag and Tb3+/Yb3+ ions was investigated in silica-sodazirconia sol-gel glasses and glass-ceramics. The study demonstrated the control of crystalline structure of zirconia nanocrystals and its correlation with Tb3+/Yb3+ optical properties through rare-earth doping and thermal annealing. The introduction of Ag codoping significantly enhanced the photoluminescence of Tb3+/Yb3+ doped silica-soda-zirconia glass-ceramics. These materials were proposed as potential candidates for energy-related applications in the visible and NIR spectral regions.
CERAMICS INTERNATIONAL
(2023)
Article
Biophysics
Rustem R. Zairov, Alexey P. Dovzhenko, Sergey N. Podyachev, Svetlana N. Sudakova, Timur A. Kornev, Anastasiya E. Shvedova, Alexey N. Masliy, Victor V. Syakaev, Ivan S. Alekseev, Ivan M. Vatsouro, Gulnaz Sh. Mambetova, Dmitry V. Lapaev, Irek R. Nizameev, Francesco Enrichi, Andrey M. Kuznetsov, Vladimir V. Kovalev, Asiya R. Mustafina
Summary: The present work introduces self-assembled polystyrenesulfonate (PSS) molecules as soft nanocapsules for incorporation of Eu3+-Sm3+ complexes. The high levels of Eu3+ and Sm3+ luminescence of the complexes derives from the ligand-to-metal energy transfer. The PSS-nanocapsules provide both colloid and chemical stabilization of the ultrasmall nanoprecipitates of the complexes, while their luminescence spectra patterns and excited state lifetimes differ from the values measured for the complexes in DMF solutions.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2022)
Article
Spectroscopy
Michele Cassetta, Beatrice Giannetta, Francesco Enrichi, Claudio Zaccone, Gino Mariotto, Marco Giarola, Luca Nodari, Marco Zanatta, Nicola Daldosso
Summary: This study examines the effects of alkali vs iron ratio on the properties of synthetic basaltic glasses using Raman spectroscopy and calorimetry. The results show that changes in this ratio alter the glass transition interval and the structure of the glass. The study also reveals that increasing the alkali vs iron content results in a harder elastic medium without changing its nature.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Rustem Zairov, Alexey Dovzhenko, Natalia Terekhova, Timur Kornev, Ying Zhou, Zeai Huang, Dmitry Tatarinov, Guliya Nizameeva, Robert R. R. Fayzullin, Aidar T. T. Gubaidullin, Taliya Salikhova, Francesco Enrichi, Vladimir F. F. Mironov, Asiya Mustafina
Summary: The optimization of ligand structure in the series of bis(phosphine oxide) and beta-ketophosphine oxide representatives enables efficient coordination of Tb3+ and Eu3+ ions and formation of complexes with high luminescence. The nature of the bridging group between two phosphine oxide moieties greatly affects the coordination mode of the ligands with Tb3+ and Eu3+ ions. The high stability of the tris-complexes allows for their safe conversion into colloids, exhibiting the same luminescence as in solutions. The tris-complexes show a pronounced luminescent response to the antibiotic ceftriaxone, making them suitable for sensing applications.
Article
Materials Science, Multidisciplinary
Elena Missale, Andrea Chiappini, Richard Spiess, Giorgio Speranza, Maria F. Pantano
Summary: In this paper, it is demonstrated that under specific conditions, such as high temperature and pressure, localized regions of plastic deformation can occur in silicon. By applying a relatively small pressure onto pre-notched single crystal silicon slices at room temperature, a permanent deformation field can be induced over macroscopically wide regions. The experimental multiscale approach used in this study, which combines optical microscopy, profilometry, Raman spectroscopy, and Electron Backscatter Diffraction (EBSD), provides a comprehensive characterization of the deformed region, showing the effectiveness of the proposed methodology for controlled permanent deformation in silicon samples.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Lamyae Oulmaati, Salima El Amrani, Khalid Bouziane, Adel Bouajaj, Mohammed Reda Britel, Francesco Enrichi, Maurizio Ferrari
Summary: An efficient quantum cutting mechanism was observed in a Tb3+ - Yb3+ codoped silica hafnia glass and glass-ceramic system, showing a quantum efficiency of up to 179% at 980 nm. These films can be integrated into silicon-based solar cells, increasing their photoelectric conversion efficiency at a low cost. The electrical characterization confirmed a boost in solar cell efficiency by 10.79% and 10.78% when covered with 70SiO(2) - 30HfO(2) - 3Tb(3+) - 12Yb(3+) glass and glass ceramic, respectively. Furthermore, an evaluation of the additional external quantum efficiency revealed an improvement ranging from 2.64% to 3.44%, highlighting the enhanced light conversion capabilities of the quantum cutting mechanism within the system.
APPLIED SCIENCES-BASEL
(2023)
Article
Materials Science, Multidisciplinary
Aicha Bensouici, Nacera Baali, Roumaissa Bouloudenine, Giorgio Speranza
Summary: This study successfully reduced and decorated graphene oxide with magnesium oxide, synthesizing Mg(OH)2-rGO-MgO nanocomposites. In terms of antioxidant activity, GO1:4 and MgO-rGO1:4 showed the best performance among the different synthesized nanoparticles.
C-JOURNAL OF CARBON RESEARCH
(2022)
Article
Chemistry, Physical
Mattia Biesuz, Jixi Chen, Mauro Bortolotti, Giorgio Speranza, Vincenzo Esposito, Vincenzo M. Sglavo
Summary: High-entropy oxides with rock salt structure are materials with intriguing functional properties, but elements like Ni in their composition pose a threat to human health. In this study, we successfully develop a Ni-free high entropy rock salt by replacing nickel with manganese. Through suitable thermal treatment, we obtain samples with high density and good phase purity, and demonstrate the electrical properties of the materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Materials Science, Multidisciplinary
Wei Liu, Giorgio Speranza
Summary: The efficiency of two wet chemical processes based on hydroiodic acid and sodium borohydride to reduce graphene oxide has been studied. The reduction of oxygen concentration in reduced graphene oxide samples proceeds non-linearly, with a saturation effect observed when increasing amounts of reductants are used.
C-JOURNAL OF CARBON RESEARCH
(2022)
Review
Chemistry, Multidisciplinary
Iman Zare, Mohammad Tavakkoli Yaraki, Giorgio Speranza, Alireza Hassani Najafabadi, Alireza Shourangiz Haghighi, Amirala Bakhshian Nik, Bella B. Manshian, Claudia Saraiva, Stefaan J. Soenen, Marcelo J. Kogan, Jee Woong Lee, Nicholas V. Apollo, Liliana Bernardino, Eyleen Araya, Dirk Mayer, Guangzhao Mao, Michael R. Hamblin
Summary: This article introduces the wide range of applications of gold nanostructures in neuroscience and discusses their potential in diagnosis and therapy. Gold nanostructures can stimulate and monitor neural signals, providing promising solutions for neural tissue regeneration and repair, neuroprotective strategies, and more.
CHEMICAL SOCIETY REVIEWS
(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)
