Article
Polymer Science
Mosadegh Keshavarz, Layla A. Taib, Nasir Iravani
Summary: The synthesis of pyrazolo[b]phthalazine diones and indazolo[b]phthalazine triones was efficiently achieved using novel magnetically recoverable supported Bronsted acidic ionic liquids. Heterogeneous catalysts were prepared by immobilizing organosulfonate zwitterions on nanomagnetic Fe3O4@SiO2-SO3H support, leading to improved thermal stability and recyclability. The introduced catalysts demonstrated short reaction times and high yields of products, making them superior replacements for previously reported catalysts.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Nasir Iravani, Mosadegh Keshavarz, Layla A. Taib
Summary: We present a straightforward method for immobilizing protic acidic ionic liquids onto nano silica sulfuric acid through non-covalent ion-pair immobilization. Zwitterionic organic salts were prepared and anchored onto the support, allowing for simplified recovery and reusability with improved thermal stability. The resulting organic-inorganic nanohybrids showed promising performance in the synthesis of 4H-pyrano[2,3-c]pyrazole and 3,4-dihydro pyrano[c]chromene derivatives. Rating: 8.5/10.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Article
Nanoscience & Nanotechnology
Lulu Dang, Huixia Yuan, Binshen Wang, Jingshun Zhang, Ziyi Wang, Guohua Gao
Summary: A new type of swellable organic-inorganic hybrid polymer (PIL@CHT) was synthesized and exhibited excellent swelling capacity in solvents with a wide range of Hansen solubility parameters (delta T). The swollen state of PIL@CHT in water showed a network structure with well-dispersed CHT particles. PIL@CHT was applied as a catalyst for the CO2-assisted hydration of propylene oxide (PO) and achieved high yield and selectivity of 1,2-propanediol (1,2-MPG) under a low H2O/PO ratio.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Nathaniel E. Larm, Laxmi Adhikari, Samantha McKee, Gary A. Baker
Summary: This study presents a novel hybrid inorganic-organic architecture called polyionic nanoclays (PINCs), which are composed of two-dimensional, few nanometer-thick magnesium phyllo(organo)silicate nanosheets with ordered imidazolium functionalities. The PINCs demonstrate high ionic density, exchangeability of counteranions, and the ability to tailor the organic component, showing promising potential in catalysis, ion exchange, energy storage, and other applications. Additionally, the study also reveals the remarkable catalytic activity of gold nanoparticles supported on PINCs, suggesting a major synergistic effect compared to similar nanoparticles suspended in water.
CHEMISTRY OF MATERIALS
(2021)
Article
Materials Science, Ceramics
Tao Xu, Runwei Yu, Wei Liu, Hongkun Li, Yi Li, Yonggang Yang
Summary: In this study, structural colored organic-inorganic hybrid silica films were prepared by incorporating a chiral dopant into an organosilane mixture. The obtained films showed selective Bragg reflection and their colors could be changed through UV irradiation. Additionally, colorful patterns were successfully achieved using masks.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Ksenia S. Egorova, Marina M. Seitkalieva, Alexey S. Kashin, Evgeniy G. Gordeev, Anna V. Vavina, Alexandra V. Posvyatenko, Valentine P. Ananikov
Summary: This study investigated the cytotoxicity of chemically relevant imidazolium PILs with different alkyl side chains and compared it with aprotic analogues. The results highlighted the role of anion type in determining the cytotoxicity of ILs with short alkyl side chains. Even low-toxic PILs showed harmful effects on eukaryotic cells when used as cryopreservation agents, and the studied IL/water mixtures tended to form simple solid hydrates due to the weak amphiphilic properties of imidazolium cations with short alkyl side chains.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Mechanical
M. D. Aviles, R. Pamies, J. Sanes, J. Arias-Pardilla, F. J. Carrion, M. D. Bermudez
Summary: The addition of Bis(2-hydroxyethyl) ammonium stearate (DES) protic ionic liquid crystal (PILC) to di-bis(2-hydroxyethyl) ammonium succinate (DSU) protic ionic liquid (PIL) lubricant blends significantly reduces friction coefficient and wear rate, while also preventing surface damage. Surface analysis using various techniques showed positive results after tribological tests.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Chemistry, Physical
Shu-Chi Wu, Zhengxun Lai, Ruoting Dong, Shin-Yi Tang, Kuangye Wang, Tzu-Yi Yang, Ying-Chun Shen, Hsiang-Ju Liao, Teng-Yu Su, Chiou-Ru Cheng, Yuanfei Ai, Yu-Ze Chen, Yi-Chung Wang, Ling Lee, Yi-Jen Yu, Johnny C. Ho, Yu-Lun Chueh
Summary: Recent advances in the use of organic-inorganic hybrid perovskites have been investigated for various applications, such as solar cells, photodetectors, light-emitting devices, and lasers. The perovskite structure can host extrinsic elements, making it a promising candidate for battery applications. Previous studies have shown the suitability of organic-inorganic hybrid perovskites as anode materials for lithium-ion and sodium-ion batteries.
Article
Nanoscience & Nanotechnology
Huan Wang, Rikard Emanuelsson, Christoffer Karlsson, Patric Jannasch, Maria Stromme, Martin Sjodin
Summary: Rechargeable batteries utilizing redox-active organic compounds are being seen as a promising energy storage technology for the future. By functionalizing redox-active groups onto conducting polymers to create conducting redox polymers (CRPs), the low conductivity and dissolution issues of redox-active compounds can be effectively addressed. Through innovative techniques such as postdeposition polymerization, high-performance CRPs have been developed and optimized to achieve theoretical capacities, resulting in the creation of an efficient all-organic proton battery with impressive capacity retention.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Yaakov Tuchman, Tyler J. Quill, Garrett LeCroy, Alberto Salleo
Summary: Organic semiconductors are being used in neuromorphic computing applications, with the development of vertical, three-terminal electrochemical random-access memories (ECRAMs) being a key advancement. These stacked hybrid organic/inorganic ECRAMs (SHOEs) demonstrate superior performance compared to lateral devices, with features such as high dynamic range, exceptional cycling endurance, low energy switching, and high operational speeds. The fabrication process allows for independent control over device dimensions, and the hybrid electrolyte design has broader applications beyond ECRAMs.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Applied
Tao Xu, Hongkun Li, Wei Liu, Yi Li, Baozong Li, Yonggang Yang
Summary: Organic-inorganic hybrid silica films with circularly polarized luminescence (CPL) properties were prepared by in-situ polycondensation of a cholesteric liquid-crystalline organosilane, chiral dopant, and aggregation-induced emission (AIE)-active tetraphenylethene (TPE) derivative under acidic conditions. The resulting films exhibited bright CPL with absolute g(lum) values of approximately 0.15, predominantly attributed to the long-range ordered supramolecular helical structure. The handedness of the CPL was determined by the selective reflection of the cholesteric liquid crystal films.
Article
Nanoscience & Nanotechnology
Minji Kim, Seung Yeob Lee, Jihyun Kim, Changwon Choi, Yves Lansac, Hyungju Ahn, Sohee Park, Yun Hee Jang, Seoung Ho Lee, Byoung Hoon Lee
Summary: Inspired by the classic hard-soft acid-base theory, this study introduces a new ionic liquid to treat PEDOT:PSS and achieves similar levels of ion-exchange and stretchability enhancement compared to the best existing ionic liquid.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Analytical
Yuanfei Liu, Sunqi Shang, Wanjiao Wei, Yuefei Zhang, Wei Chen, Sheng Tang
Summary: In this study, an IL modified COF bonded silica composite material (IL-COF@SiO2) was successfully synthesized using a deep eutectic solvent as the reaction medium instead of organic solvent. The IL-COF@SiO2 composite material combines the separation ability of COF and the mass transfer function of porous silica. The introduction of IL provides better separation performance, demonstrating potential as a versatile liquid chromatographic separation material.
ANALYTICA CHIMICA ACTA
(2023)
Article
Environmental Sciences
Imran Khan Swati, Qazi Sohaib, Shuyun Cao, Mohammad Younas, Dan Liu, Jianzhou Gui, Mashallah Rezakazemi
Summary: Four ionic liquids were synthesized for the separation of gases CO2/N-2 and CO2/CH4 through supported ionic liquid membranes (SILMs), with [BSmim][tos] showing the highest solubility coefficient and permeability, as well as the highest selectivity values. The ILs synthesized for this work can be ranked as [BSmim][tos] > [BSmpy][tos] > [Bmim][Cl] > [Bpy][Cl], indicating their potential use for CO2 separation through SILMs.
Review
Biochemistry & Molecular Biology
Chengbin Yang, Zheng-Ian Lin, Jian-An Chen, Zhourui Xu, Jiayu Gu, Wing-Cheung Law, Jason Hsiao Chun Yang, Chih-Kuang Chen
Summary: The translation: The field of nanomedicine has advanced into clinical trials, but drug formulations for cancer treatment still face limitations due to biological barriers. To overcome these challenges, organic/inorganic hybrids have been developed to integrate the benefits of both types of nanomaterials through a self-assembly approach.
MACROMOLECULAR BIOSCIENCE
(2022)
Article
Chemistry, Organic
Mosadegh Keshavarz, Masoumeh Tabatabaee, Maryam Shahabi, Enayatolah Yazdankish
Summary: A novel heteropolyanion-based BrOnsted acidic ionic liquid material [PhBs](3)PW12O40, known as butane mono sulfoacid-functionalized phenanthrolinum salt of phosphotungstate catalyst (PhBs-PW), was synthesized and characterized using various techniques. The newly prepared catalyst exhibited high product yields of up to 97% in the condensation reaction and showed good recyclability in eight reusability runs.
POLYCYCLIC AROMATIC COMPOUNDS
(2021)
Article
Chemistry, Applied
Mohammad Hossein Keshavarz, Seyyed Hesamodin Hosseini, Mehran Karimi
Summary: This study introduced dynamic mechanical thermal analysis (DMTA) as an efficient method to assess the shelf life of solid composite solid propellants in different environments. The results showed that the shelf lives of the samples in nitrogen atmosphere are more than four times longer than those in air atmosphere.
CENTRAL EUROPEAN JOURNAL OF ENERGETIC MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Layla A. Taib, Mosadegh Keshavarz
Summary: In this study, novel organic-inorganic Bronsted acidic ionic solids (BAISs) were prepared using click reaction and used as efficient catalysts for the synthesis of tetrazolopyrimidines. The introduced catalysts have the advantages of ease of recovery, reusability, and high yields of the desired products in a short time.
Article
Chemistry, Multidisciplinary
Layla A. Taib, Mosadegh Keshavarz, Abolfath Parhami
Summary: The synthesis and catalytic activity of three 1,2,3-triazole-based ionic organic-inorganic hybrids as novel water-soluble catalysts for the efficient preparation of spirooxindole derivatives were described. These catalysts showed excellent catalytic activity in the three-component reaction of 1,3-dicarbonyl compounds, barbituric acid, and isatin derivatives in water. The introduced organic-inorganic hybrids exhibited advantages such as clean and straightforward preparation, green conditions, ease of recovery, and reusability up to three repeated runs without significant decrease in catalytic stability.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Biochemistry & Molecular Biology
Iman Sedighimehr, Bahador Karami, Mahnaz Farahi, Mosadegh Keshavarz
Summary: This research reports the synthesis of novel indeno[1,2-b]pyrano[2,3-f]chromene-2,12(13H)-dione derivatives in the presence of a newly introduced magnetically recoverable nanosolid acid catalyst. The prepared Fe3O4@SiO2-(CH2)(3)OPO3H2 nanocatalyst exhibited good catalytic activity for the synthesis of the derivatives. The nanocatalyst also showed great catalytic stability up to five consecutive runs.
MOLECULAR DIVERSITY
(2022)
Article
Chemistry, Organic
Layla A. Taib, Mosadegh Keshavarz, Mohammad Panahimehr
Summary: Here, two new organic-inorganic Bronsted acidic ionic solids (BAIS-PW) based on click synthesis strategy are introduced for the efficient synthesis of highly substituted xanthenes. The approach includes three-step consecutive reactions to achieve these BAIS-PW hybrids. The prepared BAIS-PW hybrids were well characterized and confirmed, and the catalytic efficiency of these catalysts for the one-pot synthesis of substituted xanthenes was examined. The introduced catalysts showed superior performance in terms of high isolated yields and reusability without significant catalytic deactivation.
POLYCYCLIC AROMATIC COMPOUNDS
(2023)
Article
Polymer Science
Mosadegh Keshavarz, Layla A. Taib, Nasir Iravani
Summary: The synthesis of pyrazolo[b]phthalazine diones and indazolo[b]phthalazine triones was efficiently achieved using novel magnetically recoverable supported Bronsted acidic ionic liquids. Heterogeneous catalysts were prepared by immobilizing organosulfonate zwitterions on nanomagnetic Fe3O4@SiO2-SO3H support, leading to improved thermal stability and recyclability. The introduced catalysts demonstrated short reaction times and high yields of products, making them superior replacements for previously reported catalysts.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Mehrdad Cheraghi, Bahador Karami, Mahnaz Farahi, Mosadegh Keshavarz
Summary: The synthesis of 2H-indazolo[2,1-b] phthalazine-triones and triazolo[1,2-a]indazole-triones through one-pot three-component reactions under solvent-free conditions using a 1H-1,2,4-triazole-3-thiol-functionalized core-shell Fe3O4@SiO2 magnetic nanocomposite as catalyst is presented. The catalyst was developed through a four-step protocol and characterized using various techniques. The catalytic activity of the nano-catalyst was evaluated, showing excellent yields for all products. The catalyst demonstrated a stability of 92% after five runs, with the additional advantages of simplicity of use and easy separation.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Article
Biochemical Research Methods
Mohammad Hossein Keshavarz, Zeinab Shirazi, Mohammad Ali Rezayat
Summary: A novel approach is introduced to predict the retention time of morphine and its derivatives reliably, based on experimental data of 42 compounds. An improved correlation is developed to increase reliability, and the method's accuracy is confirmed through cross-validation. Comparisons with a complex BP-ANN method show lower root mean squared errors and good predictive performance.
Article
Chemistry, Medicinal
Mohammad Hossein Keshavarz, Hossein Fakhraian, Norollah Saedi
Summary: The study introduces a new approach to assess the agonistic activity of dibenzazepine derivatives based on molecular moieties, showing accurate prediction of compound activity. The internal cross-validation demonstrates that the new model is robust, well-behaved, and not over-fitted, with predicted values very close to actual results.
MEDICINAL CHEMISTRY RESEARCH
(2021)
