Article
Chemistry, Physical
Dong-Eun Lee, Satyanarayana Moru, Wan-Kuen Jo, Surendar Tonda
Summary: This study introduces a novel strategy that uses vitamin B12 as a bioinspired resource to enhance the efficiency of the oxygen reduction reaction. The researchers successfully tailored the chemical structure of vitamin B12 on a graphene substrate, resulting in catalysts with various active sites. The developed catalysts exhibit excellent electrocatalytic performance for the oxygen reduction reaction and outperform commercial platinum catalysts in terms of durability and methanol tolerance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Ajmal Shahzad, Jawad Ali, Muhammad Wajid Ullah, Kazim Aziz, Muhammad Asif Javed, Fida Hussain, Sehrish Manan, Khalid Ali Khan, Thamer Alomayri, M. Weam Abdul Raheem, Guang Yang
Summary: This study introduces a novel strategy of constructing an electron-rich center by systematically intercalating ultrathin-reduced graphene oxide (rGO) sheets into hydroxide-based materials to accelerate the redox cycles of transition metal-based heterogeneous catalysts. The fabricated catalyst exhibited higher reactivity than the corresponding hydroxides or rGO during peroxymonosulfate activation. The best catalyst showed significantly higher pollutant removal reactivity compared to catalyst precursors, benchmark catalysts, and various co-catalytic systems. The electron-rich domain of interlayered rGO enables constant regeneration of the transition metal and production of diverse reactive species.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xinyu Han, Yifan Liu, Zhiyuan Qi, Qilong Zhang, Panfeng Zhao, Lan Wang, Lingfeng Gao, Gengxiu Zheng
Summary: Transition metal oxide/graphene composites were fabricated as heterogeneous catalysts for the oxidation of cyclohexane, leading to improved reaction efficiency. The well anchored transition metal oxides on the graphene sheets allowed for fine distribution of the catalyst. The synergistic catalytic activity of CoO and graphene significantly enhanced the conversion and selectivity of the oxidation reaction.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Masazumi Tamura, Eiji Sagawa, Akira Nakayama, Yoshinao Nakagawa, Keiichi Tomishige
Summary: The hybrid catalyst of CeO2 and 2-cyanopyridine is effective in oxidizing alkanes with high selectivity to alcohols and ketones, with the mechanism attributed to the N atom in the CN group playing a key role on the CeO2 surface.
Article
Chemistry, Applied
Peiwen Wu, Chang Deng, Feng Liu, Haonan Zhu, Linlin Chen, Ruoyu Liu, Wenshuai Zhu, Chunming Xu
Summary: A magnetic and recyclable high-entropy metal oxide catalyst is designed and investigated for catalytic oxidative desulfurization of fuel oils. The catalyst exhibits exceptional oxygen activation ability and catalytic performance, achieving high sulfur removal efficiency. It also demonstrates outstanding magnetically recyclable properties.
CHINESE JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Inorganic & Nuclear
Digvijay Sah, Javaid Shabir, Surabhi, Padmini Gupta, Subho Mozumdar
Summary: An efficient and facile strategy was adopted for the stepwise synthesis of the RGO-MSiO2/PdO hybrid nanomaterial (HY-NM), which exhibited excellent catalytic activity in multicomponent reactions due to its high surface area and large porosity facilitating the interaction of reactant molecules with the catalytic active species. The catalyst could be recycled multiple times, demonstrating ease of handling, and a simple work-up procedure as its main features.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Mehdi D. Esrafili, Parisasadat Mousavian
Summary: The study reveals that B-doped graphene shows exceptional catalytic performance in oxidizing CO molecules, primarily due to the active sites provided by B atoms for adsorbing CO and O2 molecules. The results suggest that the termolecular Eley-Rideal (TER) pathway is the most energetically relevant mechanism for the CO + O2 reaction, aiding in the design of active metal-free catalysts.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Prasenjit Mandal, Rostam Ali Molla, Asoke P. Chattopadhyay, Sandeep Poddar, Hari Shankar Biswas
Summary: In this study, a simple and robust method was used to prepare a 3-Aminopropyltriethoxysilane (APTES) immobilized graphene oxide nanocomposite with a grafted Cu (II) Schiff base complex. The chemical nature and structure of the final product were characterized using various techniques. The final product demonstrated excellent catalytic activity as a heterogeneous catalyst for the selective aerobic decarboxylation reaction of phenylacetic acid to benzaldehyde under ambient conditions. The catalyst could be reused multiple times without significant loss in activity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Niran Daimary, Khalifa S. H. Eldiehy, Pankaj Boruah, Dhanapati Deka, Utpal Bora, Biraj Kumar Kakati
Summary: The sustainable processing approach was used to transform potato peel into bio-oil and green heterogeneous catalysts. The byproduct, biochar, was reused as a renewable and sustainable catalyst source. The synthesized catalyst showed high catalytic activity and oil conversion rate.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Energy & Fuels
Mujahed Al-Dhaifallah, Mohammad Ali Abdelkareem, Hegazy Rezk, Hesham Alhumade, Ahmed M. Nassef, Abdul Ghani Olabi
Summary: The study showed that there is an optimal ratio between TiN and Co to maximize the ORR activity. CoTiN (30)/Gr exhibited an onset potential of 0.926 V vs Ag/AgCl, much higher than commercial Pt/C catalyst. The prepared catalyst has no activity towards methanol oxidation, making it a promising cathode catalyst for direct alcoholic FCs.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Paralee Waenkaew, Surin Saipanya, Suphitsara Maturost, Suwaphid Themsirimongkon, Runglawan Somsunan, Napapha Promsawan
Summary: A catalyst composed of PAMPs-modified GO as the supporting material and Pt and/or Pd as the active catalytic component was found to enhance the formic acid oxidation reaction. The 3Pt3Pd/10%PAMPs/GO catalyst exhibited the highest catalytic activity, stability, and charge transfer kinetics among all the tested catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Hashem Sharghi, Mina Aali Hosseini, Jasem Aboonajmi, Mahdi Aberi
Summary: The study presents an efficient and environmentally friendly method for synthesizing benzoxazoles in water using vitamin B-12 as a catalyst, utilizing ambient air as the oxidant. By incorporating a natural cobalt complex as a catalyst, benzoxazoles were synthesized with relatively high yields, and compounds with anticonvulsant and analgesic properties were successfully used in the reaction. The use of water as a solvent, ambient air as the sole oxidant, and a biodegradable catalyst aligns with the principles of green chemistry and makes this approach attractive for both academic research and industrial applications.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Applied
Asit Kumar Das, Sneha Nandy, Sanjay Bhar
Summary: An economically efficient and operationally simple ligand-free protocol has been developed for the chemoselective oxidation of benzylic alcohols to carbonyl compounds using alumina-supported nickel nanoparticles. The protocol demonstrates excellent chemoselectivity and tolerance towards various sensitive moieties, with the catalyst being recyclable without significant loss in activity. The heterogeneous nature of the catalyst has been established, making it a promising eco-friendly option for oxidation reactions.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Vishal A. A. Ghadge, Krishnan Ravi, Dhanaji R. R. Naikwadi, Pramod B. B. Shinde, Ankush V. V. Biradar
Summary: By utilizing microbial eumelanin, porous N-doped carbon materials were synthesized and used as metal-free biocatalysts for the oxidation of olefins and alkyl aromatic hydrocarbons. The synthesized catalyst showed higher catalytic activity for the oxidation of styrene under milder reaction conditions.
Review
Chemistry, Physical
James F. Brazdil
Summary: Research on the incorporation of cerium into diverse catalyst systems has expanded rapidly, leading to numerous scientific research papers and patents that explore the application of cerium as a component of multi-metal oxide systems and a support material for metal catalysts. Cerium-containing catalysts have been utilized in selective oxidation, combustion, NOx remediation, and the production of sustainable chemicals and materials. The interest in these catalysts stems from the benefits offered by cerium, including selectivity, activity, and stability, which are attributed to its unique combination of chemical and thermal stability, redox properties, and ability to stabilize defect structures and oxidation states of other multivalent elements.
Article
Chemistry, Multidisciplinary
Fandi Sutanto, Shabnam Shaabani, Rick Oerlemans, Deniz Eris, Pravin Patil, Mojgan Hadian, Meitian Wang, May Elizabeth Sharpe, Matthew R. Groves, Alexander Domling
Summary: This study demonstrates the interplay between high throughput synthesis and high throughput PX, showing the potential of this approach in early drug discovery and successfully yielding potent inhibitors of the COVID-19 causing agent.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Biochemistry & Molecular Biology
Minoo Dabiri, Noushin Farajinia Lehi, Reza Mohammadian
Summary: Fluoro-organic compounds have attracted significant interest for their role in developing new bioactive materials and healthcare products. Catalytic Mannich reaction allows for the synthesis of versatile amine synthons, opening clear paths for the synthesis of natural product and pharmaceutical molecules. This review highlights the use of catalytic asymmetric Mannich reactions in the synthesis of fluorine-containing amine compounds and discusses possible distinct mechanisms.
MOLECULAR DIVERSITY
(2022)
Article
Chemistry, Multidisciplinary
Adina Rashidi Vahid, Fatemeh Hajishaabanha, Shabnam Shaabani, Hassan Farhid, Ahmad Shaabani
Summary: Magnetic manganese dioxide nanoparticles were successfully synthesized and used in organic synthesis reactions by using sugarcane bagasse as a bio-support.
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2022)
Review
Chemistry, Medicinal
Malihe Pooresmaeil, Siamak Javanbakht, Hassan Namazi, Ahmad Shaabani
Summary: Nontoxic materials with natural origin, like citric acid, have shown promising potential in the design and preparation of new drug delivery systems. Research on citric acid-based platforms in various forms has demonstrated their efficiency as drug delivery systems.
MEDICINAL RESEARCH REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Siamak Javanbakht, Vida Khodkari, Mohammd Taghi Nazeri, Ahmad Shaabani
Summary: This work reports a sustainable method for the functionalization of graphene quantum dots (GQDs), which effectively improves the solubility and antibacterial activity of CuO nanoparticles. The synthesized nanomaterials exhibit significant antibacterial activity and good cytocompatibility towards human skin cells.
REACTION CHEMISTRY & ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Shabnam Shaabani, Louis Gadina, Ewa Surmiak, Zefeng Wang, Bidong Zhang, Roberto Butera, Tryfon Zarganes-Tzitzikas, Ismael Rodriguez, Justyna Kocik-Krol, Katarzyna Magiera-Mularz, Lukasz Skalniak, Alexander Domling, Tad A. Holak
Summary: Novel biphenyl-based chimeric compounds containing pomalidomide were found to exhibit strong inhibitory activity against PD-1/PD-L1, with compound 3 showing the best performance. Compounds 4 and 5 were able to significantly restore suppressed immunity in an ex vivo PD-1/PD-L1 blockade cell line bioassay.
Article
Chemistry, Multidisciplinary
Mohammad Taghi Nazeri, Tahereh Nasiriani, Hassan Farhid, Siamak Javanbakht, Fereshteh Bahri, Mehrdad Shadi, Ahmad Shaabani
Summary: Water plays a vital role as a solvent in organic synthesis, especially in the synthesis of pseudopeptidic frames through isocyanide-based multicomponent reactions (I-MCRs). Compared to conventional organic solvents, water exhibits unique reactivity and selectivity. I-MCRs in water show accelerated reaction rates, mild and easily controlled conditions, and environmentally friendly characteristics, aligning well with the principles of Green Chemistry.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Li Gao, Shabnam Shaabani, Atilio Reyes Romero, Ruixue Xu, Maryam Ahmadianmoghaddam, Alexander Doemling
Summary: We demonstrate the feasibility of synthesizing a large library based on 16 different chemistries in parallel on a nanoscale using highly automated methods. Unlike combinatorial chemistry, we generate 16 scaffolds simultaneously, with each compound produced through a random combination of diverse building blocks in a sparse matrix fashion. The advantages of this automated nanoscale synthesis approach include library diversity, absence of storage logistics, superior economics, faster synthesis through automation, increased safety, and sustainable chemistry.
Article
Chemistry, Multidisciplinary
Hassan Farhid, Hanieh Mohammadi Araghi, Ahmad Shaabani, Behrouz Notash
Summary: A sustainable, economical, and straightforward synthetic route utilizing higher-order multicomponent reactions (MCRs) is developed for the unification of biologically significant quinoxaline-pseudopeptide-triazole pharmacophores. The strategy involves a one-pot, six-component, tandem cyclocondensation/Ugi/click reaction sequence, which efficiently produces complex pharmaceutically desirable compounds from easily accessible precursors. This procedure offers advantages including benign reaction conditions, energy efficiency, operational simplicity, pot economy, high bond-forming economy, high atom economy, and excellent overall yields.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Vida Khodkari, Mohammad Taghi Nazeri, Siamak Javanbakht, Ahmad Shaabani
Summary: Biopolymeric chitosan, as a green support, is utilized to produce a versatile heterogeneous catalytic system, which exhibits high efficiency, selectivity, and the use of water as a green solvent.
REACTION CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Organic
Mohammad Taghi Nazeri, Maryam Ghasemi, Masoomeh Ahmadi, Ahmad Shaabani, Behrouz Notash
Summary: By employing triazolobenzodiazepine as a cyclic imine, a variety of compounds can be synthesized under different reaction conditions, with mild conditions and high yields.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Siamak Javanbakht, Sima Darvishi, Faeze Dorchei, Maryam Hosseini-Ghalehno, Marjan Dehghani, Malihe Pooresmaeil, Yota Suzuki, Qurat Ul Ain, Leire Ruiz Rubio, Ahmad Shaabani, Takashi Hayashita, Hassan Namazi, Abolfazl Heydari
Summary: Diabetes mellitus is a prevalent chronic health condition, and monitoring blood glucose levels is crucial in diabetes management. However, developing noninvasive, rapid, accurate, sensitive, selective, and stable systems for continuous monitoring remains a challenge. Cyclodextrins can be instrumental in addressing these challenges and improving the performance and stability of glucose monitoring systems.
Article
Chemistry, Organic
Mohammad Taghi Nazeri, Masoomeh Ahmadi, Maryam Ghasemi, Ahmad Shaabani, Behrouz Notash
Summary: A novel and unexpected route for synthesizing pyrrole-fused dibenzoxazepines/thiazepines has been developed based on a modified Ugi reaction. This reaction proceeds through the production of zwitterion species, which is a key intermediate for the chemoselectivity of products. The synthesized pyrrole-fused heterocycles have high yields and chemoselectivity, making them promising pharmaceutical scaffolds.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Physical
Mohammad Taghi Nazeri, Maryam Ramezani, Siamak Javanbakht, Ahmad Shaabani
Summary: This study utilized cellulose as a green support material for the preparation of a heterogeneous biocatalytic system through a sustainable metallophthalocyanine conjugation. The catalyst showed high efficiency in the synthesis of cyclic carbonates through CO2 fixation in water, and exhibited other important advantages.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Biochemistry & Molecular Biology
Kai Gao, Shabnam Shaabani, Ruixue Xu, Tryfon Zarganes-Tzitzikas, Li Gao, Maryam Ahmadianmoghaddam, Matthew R. Groves, Alexander Domling
Summary: The study demonstrates the potential of on-the-fly compound synthesis and in situ screening in reducing the environmental footprint of medicinal chemistry. Acoustic dispensing technology was used to synthesize a library in a 1536 well format and screened against an oncogenic protein-protein interaction. Miniaturization and automation of the organic synthesis and screening process can accelerate early drug discovery as an alternative to traditional high throughput screening.
RSC MEDICINAL CHEMISTRY
(2021)
