Article
Nanoscience & Nanotechnology
Yun-Zhe Guo, Fei Gao, Zhuo Wang, Yahu A. Liu, Wei-Bo Hu, Hui Yang, Ke Wen
Summary: The study demonstrated the fabrication of PAF-P5 for efficient adsorption and removal of organic pollutants from water, with a limitation towards aromatic organic dyes. By chemically breaking down the pillar[5]arene rings in PAF-P5, the resultant PAF-DeP5 exhibited altered adsorption capabilities towards different types of organic pollutants.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Yuting Yang, Yuzhuo Zhang, Tienan Wang, Xiaofei Jing, Yunling Liu
Summary: In this study, porous aromatic frameworks (PAFs) with diphosphine units were synthesized as efficient support materials for gold nanoparticles (AuNPs). These PAFs possess high surface areas and stability, allowing for scattered and accessible sites for gold coordination. The resulting Au-PAFs exhibited excellent catalytic activities in the reduction of 4-nitrophenol (4-NP) and other nitroaromatic derivatives. Furthermore, a continuous catalytic device with Au-PAF-160 catalyst was explored, demonstrating the potential applications of these materials in heterogeneous catalysis.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Inorganic & Nuclear
Tongyi Zhao, Xilin Li, Fengzhen Wang, Hao Ren, Fuxing Sun
Summary: Porous aromatic frameworks (PAFs) show high potential for wastewater treatment due to their high surface area and stability. PAF-134, synthesized via Yamamoto coupling reaction, exhibits high adsorption performance for tetracycline antibiotics and demonstrates excellent efficiency and stability in removing antibiotics from actual water.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Engineering, Chemical
Yue Wu, Xiaoyu Li, Yinhui Li, Chunhui Tao, Yufeng Tang, Shanshan Wang, Yu Fu, Wuju Ma, Wenxiang Zhang, Heping Ma
Summary: The exploration of removal processes for sulfur hexafluoride (SF6) emission through adsorptive separation technology has been driven by public concerns. Using task-specific porous materials, the capture of SF6 can achieve lower energy consumption and a reduced carbon footprint. In this study, four HF resistant porous aromatic frameworks (PAF-XJTU-1 to PAF-XJTU-4) with strong C-C linkage were prepared for the separation of SF6 in semiconductor etching exhaust. Experimental results and theoretical studies confirmed the efficient capture of SF6 in PAF-XJTUs.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Jianchi Hao, Hu Wen, Li Ma, Jinbiao Fei, Lifeng Ren
Summary: This study analyzes the adsorption characteristic curves of three coal samples for CO2, finding that the curves are independent of temperature and have a negative correlation between adsorption potential and adsorbed phase volume. A prediction model for CO2 adsorption by coal is derived based on the adsorption potential theory, showing accurate and reliable results. The model can predict adsorption capacity under different temperature and pressure conditions with a strong correlation to experimental data, making it a valuable tool for practical applications.
Article
Chemistry, Multidisciplinary
Anthony J. Porath, Tony Lybrand, James R. Bour
Summary: This article explores the relationship between synthetic pathway, defectivity, and microporosity of porous aromatic frameworks (PAFs). The results show that defectivity is highly dependent on the synthetic approach and more defective PAFs have lower surface areas and pore volumes. These findings suggest that efficient coupling reactions should be targeted for the synthesis of high surface area PAFs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yunbo Zhao, Ye Yuan, Yanmei Xu, Guiyue Zheng, Qian Zhang, Yuqian Jiang, Zeyu Wang, Naishun Bu, Lixin Xia, Zhuojun Yan
Summary: The study successfully prepared carbon materials with ultramicroporous structure using a self-sacrificial template method, which even outperformed ultramicroporous carbon materials obtained by other methods; This research opens up a new pathway for adjusting the porous structure to enhance the performance of supercapacitor applications.
Review
Engineering, Environmental
Jintu Francis Kurisingal, Hongryeol Yun, Chang Seop Hong
Summary: The nuclear industry will continue to develop and produce energy in the foreseeable future, but the disposal of waste radionuclides, particularly radioactive iodine, presents unique challenges due to their volatility and long half-life. Although various adsorbents have been explored, there is still interest in developing novel adsorbents. This review discusses the performance of different porous organic materials for iodine uptake, their synthesis methods, adsorption capacity, reusability, as well as the challenges and prospects in utilizing them for iodine capture.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Dong-ze Li, Lei Chen, Gang Liu, Zi-yun Yuan, Bing-fan Li, Xu Zhang, Jia-qiang Wei
Summary: MOF materials have potential value in the field of methane storage and capture due to their high specific surface area, good porosity, and adjustable pore structure. Research progress and challenges associated with MOF materials in methane storage and capture at high pressure and atmospheric pressure are reviewed, providing a theoretical basis for achieving efficient methane storage and capture.
NEW CARBON MATERIALS
(2021)
Article
Chemistry, Physical
Varvara I. I. Nikolayenko, Dominic C. C. Castell, Debobroto Sensharma, Mohana Shivanna, Leigh Loots, Ken-ichi Otake, Susumu Kitagawa, Leonard J. J. Barbour, Michael J. J. Zaworotko
Summary: Compared to rigid physisorbents, switching coordination networks offer promise for gas/vapour storage and separation due to their improved working capacity and thermal management properties. X-dmp-1-Co, a coordination network exhibiting switching enabled by transient porosity, is the parent member of a family of transiently porous coordination networks [X-dmp-1-M] (M = Co, Zn, and Cd). Each member exhibits different threshold pressures for CO2, H2O, and CH4, with tuning attributed to differences and changes in metal coordination spheres and ligand rotation.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Yu-Shu Han, Shuhao An, Jialin Dai, Jun Hu, Qing Xu, Fan Song, Mingyan Li, Changjun Peng, Honglai Liu
Summary: This study demonstrates how defects can be introduced into porous ionic polymers using a defect-engineering strategy, allowing for control of pore size distribution, specific surface area, chemical stability, and gas adsorption performance. The presence of controllable vacancies and porosity in polymers was investigated using solid-state nuclear magnetic technique, showing improved ammonia adsorption performance compared to neutral and defect-free polymers. The strong interactions between gas molecules and the PIP-X are reversible, displaying outstanding recyclable ability without structure collapse, making defective anionic polymers a versatile type of ion-exchange material for gas uptake.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Multidisciplinary Sciences
Yan Su, Ken-ichi Otake, Jia-Jia Zheng, Satoshi Horike, Susumu Kitagawa, Cheng Gu
Summary: Efficient separation of water isotopologues at room temperature has been achieved by constructing porous coordination polymers with flip-flop molecular motions to regulate the diffusion rates of water isotopologues. This method shows promise for high-performance vapor separation.
Article
Chemistry, Multidisciplinary
Zhaofu Zhang, Yajing Zheng, Zilong Dou, Mengnan Gu, Mengxiao Sun, Jian Song, Nan Gao, Fengchao Cui, Yuyang Tian, Guangshan Zhu
Summary: Porous aromatic frameworks (PAFs) are versatile porous materials with promising functionality, but the synthesis of PAFs with desired properties is challenging. In this study, a multivariate inspired strategy was employed to successfully synthesize PAFs with highly porous and hierarchical structures. The PAFs obtained through this strategy exhibited both hierarchical structures and high specific surface areas. Furthermore, lipase was loaded onto one of the multivariate PAFs, showing high loading content and favorable catalytic activity and stability.
ACS CENTRAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Ruihe Yu, Lin Liu, Liying Yin, Yege Jing, Ning Zhang, Hang Bian, Guangshan Zhu
Summary: The growth of porous aromatic frameworks (PAFs) on the surface of polymer brushes is achieved for the first time. The confined environment provided by the polymer brushes leads to the formation of nanosized and homogeneous spherical PAFs. The size of PAFs can be controlled by adjusting reaction time, grafting density, and concentration of 4-bromobenzene.
Article
Chemistry, Physical
Saif Ullah, Stephanie Jensen, Kui Tan, Guoyu Zhang, Trevor Jenkins, Anthony Elias, Michael D. Gross, Jing Li, Timo Thonhauser
Summary: In this study, the gate-opening mechanism in RPM3-Zn is elucidated, where the stretching of a bond between O and the Zn metal center weakens the structure stability and triggers the gate opening. This finding is crucial for understanding gate-opening in other flexible frameworks and offers opportunities for improving hydrocarbon separation.
CHEMISTRY OF MATERIALS
(2022)
Article
Construction & Building Technology
Geo Paul, Enrico Boccaleri, Leonardo Marchese, Luigi Buzzi, Fulvio Canonico, Daniela Gastaldi
Summary: The hydration behavior of different sulfoaluminate clinkers is influenced by the distribution of sulfates and silicates, leading to varied reactivity. Low-temperature sulfoaluminate clinker shows similar performance compared to high-temperature clinker but with reduced energy consumption and CO2 emissions.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Daniela Lalli, Fabio Carniato, Lorenzo Tei, Carlos Platas-Iglesias, Mauro Botta
Summary: Ln(III) complexes are usually isostructural, but the [Ln(AAZTA)(H2O)(x)](-) systems show structural variations causing changes in hydration number. NMR studies reveal different exchange dynamics processes of water molecules, with one Gd-bound water molecule exchanging 6 times faster than the other due to longer metal-water distance. Substitution of water molecule with fluoride in a diamagnetic-isostructural analogue allows for tracking chemical exchange process and describing thermodynamic behavior. NMR techniques provide a comprehensive understanding of structure and exchange dynamics of Ln-complexes.
INORGANIC CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Jonathan Martinelli, Edoardo Callegari, Zsolt Baranyai, Alberto Fraccarollo, Maurizio Cossi, Lorenzo Tei
Summary: Two pentadentate ligands based on the 2-aminomethylpiperidine structure with two tertiary amino and three oxygen donors were developed for Mn(II) complexation. The Mn complexes formed by these ligands were found to be more stable but with lower pMn values than other pentadentate ligands.
Article
Chemistry, Inorganic & Nuclear
Fabio Carniato, Marco Ricci, Lorenzo Tei, Francesca Garello, Enzo Terreno, Enrico Ravera, Giacomo Parigi, Claudio Luchinat, Mauro Botta
Summary: In this study, nanogels consisting of chitosan and hyaluronic acid with paramagnetic Gd chelates were prepared through electrostatic interactions. The resulting nanogels exhibited a significantly higher relaxivity compared to the free complexes, with the role of water molecules in hydrogen bonding interactions playing a key role. Additionally, the in vivo magnetic resonance imaging study of the nanogels revealed a rapid renal excretion of the paramagnetic complexes.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Daniela Lalli, Ivan Hawala, Marco Ricci, Fabio Carniato, Luca D. D'Andrea, Lorenzo Tei, Mauro Botta
Summary: The GdAAZTA complex is a promising platform for MRI probe design due to its magnetic properties, stability, and versatility. In this study, derivatives of GdAAZTA functionalized with different amino acids were synthesized and characterized. The results showed that functionalization with amino acids maintained the hydration state of the complex and improved its relaxivity. The new complexes also exhibited excellent chemical stability in biological matrices.
INORGANIC CHEMISTRY
(2022)
Article
Materials Science, Coatings & Films
Giuseppe Re, Alessandro Croce, Domenico D'Angelo, Leonardo Marchese, Caterina Rinaudo, Giorgio Gatti
Summary: The coating industry today offers a wide range of products for surface protection, decoration, and special functions. In this study, we tested the anti-corrosion performance of three types of protective coatings derived from different minerals. The results show that PHPS-treated samples provide higher protection against acidic attack, and there is a difference in behavior between siliceous and carbonaceous surfaces in acidic environments.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Medicinal
Loredana Leone, Annasofia Anemone, Antonella Carella, Elena Botto, Dario Livio Longo, Lorenzo Tei
Summary: A stable and inert amphiphilic Mn(II) complex was synthesized and its relaxometric behavior was investigated. The complex showed good relaxivity enhancement when interacting with human serum albumin, and demonstrated rapid elimination and good contrast enhancing properties in vivo. Compared to a clinically approved Gd(III) agent, the Mn(II) contrast agent provided comparable tumor contrast enhancement up to 3 hours post-injection.
Review
Nanoscience & Nanotechnology
Mauro Botta, Carlos F. G. C. Geraldes, Lorenzo Tei
Summary: Fe(III) has emerged as a promising alternative to Gd-based compounds for T-1 contrast agents in Magnetic Resonance Imaging (MRI). A variety of nanostructures have been designed for in vivo diagnostic and theranostic applications, due to the favorable magnetic properties and biocompatibility of iron(III). Fe(III)-doped nanoparticles have the potential to compete with Gd(III)-based nanosystems in terms of relaxivity and MR-contrast enhancement optimization.
WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Jonathan Martinelli, Leonardo Maria Zapelli, Mariangela Boccalon, Adrienn Vagner, Gabor Nagy, Aniko Fekete, Dezso Szikra, Gyorgy Trencsenyi, Zsolt Baranyai, Lorenzo Tei
Summary: The introduction of a phenolate pendant arm in place of an acetate on AAZTA- and DATA-like ligands resulted in higher thermodynamic stability and kinetic inertness of Ga(III) complexes. The heptadentate AAZ3A-endoHB showed the highest logK(GaL) value of 27.35 and a remarkable resistance to hydroxide coordination, indicating improved kinetic inertness. The radiotracer synthesized using the bifunctional chelator AAZ3A-endoHB, labeled with Ga-68, showed stability in human serum and successfully targeted B16-F10 tumors in vivo for miniPET imaging.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Francesca Gullo, Andrea Marangon, Alessandro Croce, Giorgio Gatti, Maurizio Aceto
Summary: Recently, a new method has been developed to produce densified woods with increased density and improved mechanical properties by using less polluting agents. The method involves delignification and densification processes, resulting in a two to four-fold increase in density. Characterization techniques showed a decrease in lignin and a significant increase in density and force necessary to yield. The obtained densified woods can be used as an alternative to other composite woody materials due to their enhanced mechanical properties.
Article
Chemistry, Medicinal
Elisabetta Rosa, Fabio Carniato, Lorenzo Tei, Carlo Diaferia, Giancarlo Morelli, Mauro Botta, Antonella Accardo
Summary: New peptide-based hydrogels incorporating different Gd(III) chelates were prepared and characterized. The paramagnetic hydrogels showed higher relaxivity values than isolated chelates in aqueous solution, and the trend of relaxivity decrease with increasing hydrogel rigidity was observed. Nanogels obtained from submicronization of the hydrogel had even higher relaxivities.
Article
Biochemistry & Molecular Biology
Edoardo Callegari, Jonathan Martinelli, Nicol Guidolin, Mariangela Boccalon, Zsolt Baranyai, Lorenzo Tei
Summary: Al(III) complexes have been studied for their potential use in PET imaging by forming ternary complexes with F-18. While NOTA derivatives are commonly used for labelling and PET imaging, non-macrocyclic pentadentate chelators like RESCA1 and AMPDA-HB provide room temperature labelling for temperature-sensitive biomolecules. Thermodynamic and kinetic studies of Al(III) complexes with AMP derivatives and a RESCA1-like chelator showed higher stability of [Al(AMPDA-HB)] and faster dissociation for [Al(AMPTA)] in solution. The stability of [AlF](2+) ternary complexes in human serum was also determined.
Article
Chemistry, Multidisciplinary
Fabio Carniato, Marco Ricci, Lorenzo Tei, Francesca Garello, Chiara Furlan, Enzo Terreno, Enrico Ravera, Giacomo Parigi, Claudio Luchinat, Mauro Botta
Summary: This article describes nanogels based on a chitosan matrix stabilized by a Mn-t-CDTA bisamide derivative. These nanogels are proposed as an alternative to less stable paramagnetic nanogels obtained by electrostatic interactions. The novel nanogels have improved relaxivity values, high stability, good extravasation and accumulation, and high T-1 contrast in tumors. These properties make them promising MRI probes for in vitro and in vivo preclinical applications.
Article
Polymer Science
Catherine J. Marsden, Colum Breen, James D. Tinkler, Thomas R. Berki, Daniel W. Lester, Jonathan Martinelli, Lorenzo Tei, Stephen J. Butler, Helen Willcock
Summary: The controlled synthesis of amphiphilic di-block copolymers allows for the creation of a variety of nanostructures, including block copolymer particles. This study focuses on the synthesis of p(MMA) particles crosslinked with ethylene glycol dimethacrylate and stabilized by poly(ethylene glycol)-based polymers. The researchers successfully synthesized a range of block copolymer particles and demonstrated the incorporation of a Gd(iii) complex into the particles, resulting in a molecular imaging agent.
Article
Chemistry, Inorganic & Nuclear
Jonathan Martinelli, Mariangela Boccalon, David Horvath, David Esteban-Gomez, Carlos Platas-Iglesias, Zsolt Baranyai, Lorenzo Tei
Summary: This study highlights the importance of ligand topology in the properties of Gd(iii) complexes relevant in the field of magnetic resonance imaging (MRI). By comparing two Gd(iii) complexes, it was found that they have different hydration numbers, stability, kinetic inertness, and water exchange rates. Differences were also observed in their interaction and relaxivity with human serum albumin.
INORGANIC CHEMISTRY FRONTIERS
(2022)
