Article
Energy & Fuels
Binta Hadi Jume, Ehsan Parandi, Mehran Nouri, Babak Aghel, Ashkan Gouran, Hamid Rashidi Nodeh, Hesam Kamyab, Jinwoo Cho, Shahabaldin Rezania
Summary: The study developed a novel heterogeneous nanocatalyst (NCT) for biodiesel production. By incorporating double-layered bimetal titanium-zirconium oxide nanoparticles (ZrO2-TiO2 NPs) over magnetic graphene oxide (ZrO2-TiO2@MGO) and improving it using a microreactor, the catalyst performance was enhanced. The study also optimized the reaction conditions to achieve a high conversion rate of biodiesel.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2023)
Article
Chemistry, Applied
Mahshid Sheikh Dastjerdy, Niaz Monadi
Summary: In this study, a new Cu(II) Schiff base complex was immobilized onto the magnetic graphene oxide surface to synthesize the GO/Fe3O4/CuL nanostructure. The synthesized nanocatalyst exhibited excellent catalytic activity in the reduction reactions of 4-nitrophenol, Congo red, and methylene blue, as well as the synthesis of 2-amino-4H-benzopyrans. Furthermore, the catalytic system showed additional advantages such as the use of green solvents, short reaction time, high product yield, and easy separation.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Fatemeh Salehzadeh, Maryam Esmkhani, Mahsa Zallaghi, Shahrzad Javanshir, Mohammad G. Dekamin
Summary: A novel magnetic heterogeneous catalyst was created by immobilizing copper ions onto l-arginine functionalized CuFe2O4@SiO2. The catalyst was characterized using various techniques including FT-IR, XRD, FE-SEM, TEM, and EDX. It was found that the catalyst could efficiently facilitate the ultrasonic-assisted synthesis of 1,2,3-triazoles through a one-pot three-component reaction. The catalyst also exhibited good reusability, with no significant loss of activity observed after five cycles.
SCIENTIFIC REPORTS
(2023)
Article
Green & Sustainable Science & Technology
Shahabaldin Rezania, Zahra Sotoudehnia Korrani, Mohammad Ali Gabris, Jinwoo Cho, Krishna Kumar Yadav, Marina M. S. Cabral-Pinto, Javed Alam, Maqusood Ahamed, Hamid Rashidi Nodeh
Summary: The study found that LaPO4 foam can be effectively used as a heterogeneous catalyst for producing biodiesel with high catalytic efficiency and stability.
Article
Chemistry, Multidisciplinary
Minda Chen, Geet Gupta, Claudio W. Ordonez, Andrew R. Lamkins, Charles J. Ward, Celia A. Abolafia, Biying Zhang, Luke T. Roling, Wenyu Huang
Summary: RhZn intermetallic nanoparticles have been developed as an exceptional catalyst for efficient heterogeneous hydroformylation, showing high activity and selectivity compared to traditional homogeneous catalysts. Density functional theory calculations reveal that RhZn surfaces reduce the binding strength of reaction intermediates and have lower activation energy barriers, leading to more favorable reaction energetics. Additionally, potential catalyst design strategies for achieving high regioselectivity have been predicted.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Polymer Science
Khaled D. Khalil, Hoda A. Ahmed, Ali H. Bashal, Stefan Braese, AbdElAziz A. Nayl, Sobhi M. Gomha
Summary: Calcium oxide (CaO) nanoparticles have attracted much interest due to their catalytic activity. In this research, a chitosan-calcium oxide nanocomposite was synthesized under microwave irradiation. The nanocomposite showed good catalytic performance in thiazole production, with high yields and mild reaction conditions.
Article
Polymer Science
Benben Zhang, Zeyu Ye, Min Qin, Qingqing Wang, Yijun Du, Chenze Qi, Linjun Shao
Summary: A simple and green chemical modification method combined with electrospinning technique was used to incorporate palladium active species into crosslinked polystyrene nanofibers, resulting in an efficient and stable heterogeneous palladium catalyst (Pd@CPS). The Pd@CPS catalyst exhibited high catalytic activities and recyclabilities for Suzuki and Heck reactions of aromatic iodides, with coupling yields exceeding 88%. The ultrafine fiber structure and embedment of palladium active species inside the nanofibers contributed to the high activities and stabilities of the prepared Pd@CPS catalyst.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Safoora Sheikh, Mohammad Ali Nasseri, Mohammad Chahkandi, Oliver Reiser, Ali Allahresani
Summary: A recyclable nanomagnetic catalyst PAMAM G(0)-Pd@gamma-Fe2O3 is reported for catalytic C-C cross-coupling reactions of challenging substrates. The catalyst exhibits good solubility and catalytic activity for a variety of aryl chloride substrates under mild reaction conditions in aqueous media. The immobilization of the catalyst on a magnetic platform allows for effective recovery and reuse.
Article
Green & Sustainable Science & Technology
Binta Hadi Jume, Parham Joolaei Ahranjani, Sara Farshineh Saei, Firas Muhammad Zeki Mahmood, Yasser Vasseghian, Shahabaldin Rezania
Summary: This study evaluated a novel heterogeneous catalyst based on bimetal layered strontium-titanium trioxide doped on graphene oxide-based iron oxide nanoparticles for biodiesel production. The catalyst exhibited high catalytic efficiency and simplicity in separation under the optimum condition.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Agricultural Engineering
Peixin Wang, Reeti Kumar, Wenhua Xue, Liwen Luo, Sunita Varjani, Jonathan Woon-Chung Wong, Jun Zhao
Summary: This study explores the strategies for developing MgO-biochar catalysts to convert glucose to fructose and optimizes the influence of synthesis method on the catalyst's stability. The MgO-biochar catalyst synthesized through a one-step method exhibits favorable catalytic activity and stability.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Chemistry, Physical
Balkis Hazmi, Umer Rashid, Sibudjing Kawi, Wan Nur Aini Wan Mokhtar, Firdous Ahmad Ahangar, Thomas Choong Shean Yaw, Toshiki Tsubota, Fahad A. Alharthi, Chawalit Ngamcharussrivichai
Summary: In this study, black carbon derived from PET wastes was used as a precursor to prepare a heterogeneous bifunctional nanocatalyst for the conversion of waste cooking oil into biodiesel. The optimized catalyst exhibited a maximum yield of 97.2% under the given reaction conditions and maintained catalytic activity up to six reaction cycles.
Article
Energy & Fuels
Negar Ataei, Abdolreza Karbasi, Majid Baghdadi
Summary: In this study, graphitic carbon nitride (g-C3N4) was used to improve the catalytic performance of magnesium oxide (MgO) in transesterification. By optimizing two parameters, an MgO catalyst with high catalytic activity was successfully prepared. The optimized catalyst exhibited excellent stability and catalytic performance in the transesterification reaction, which is of great significance for the preparation of biodiesel from low-cost waste cooking oil.
Article
Green & Sustainable Science & Technology
Ahmed A. El-sherif, Amany M. Hamad, Engy Shams-Eldin, Heba Allah Abdelnabi Eid Mohamed, Asmaa M. Ahmed, Maha A. Mohamed, Youssef S. Abdelaziz, Fatma Al-Zahraa Sayed, Esraa Ahmed Abu El qassem Mahmoud, Taiseer M. Abd El-Daim, Heba M. Fahmy
Summary: This study investigates the catalytic transesterification of waste cooking oil (WCO) using a composite catalyst derived from chicken eggshells and silver nanoparticles. The results show that the catalyst has excellent catalytic performance, and the biodiesel yield reaches 90% with acceptable fuel characteristics. The catalyst can be reused three times, making it a cost-effective and sustainable option for biodiesel production.
Article
Energy & Fuels
Bishwajit Changmai, Andrew E. H. Wheatley, Ruma Rano, Gopinath Halder, Manickam Selvaraj, Umer Rashid, Samuel Lalthazuala Rokhum
Summary: A robust and magnetically recoverable Fe3O4@SiO2-SO3H core@shell nanoparticulate acid catalyst was successfully synthesized for the transesterification and esterification of triglycerides and free fatty acids. The catalyst showed high conversion rate, low activation energy, excellent chemical and thermal stability, and reusability. The study demonstrated the potential of the catalyst for biodiesel production.
Article
Multidisciplinary Sciences
Arash Ghorbani-Choghamarani, Hamid Aghavandi, Seyed Mahdi Talebi
Summary: This paper reports the synthesis of a novel magnetic nanocatalyst with excellent catalytic activity in mild and green conditions. The catalyst showed high efficiency and reusability, making it a promising candidate for various applications.
SCIENTIFIC REPORTS
(2022)
Review
Anatomy & Morphology
Sairish Malik, Subramanian Sundarrajan, Tanveer Hussain, Ahsan Nazir, Seeram Ramakrishna
Summary: Research on nanomaterials has led to the exploitation of their potential applications, with electrospinning being particularly noteworthy for its ability to synthesize novel nanostructures. Among these, polymers, especially block copolymers, are extensively studied due to their unique properties and behavior when varying composition ratio and molecular weight, making them suitable for a wide range of applications.
CELLS TISSUES ORGANS
(2022)
Article
Green & Sustainable Science & Technology
Piya Kerdlap, Aloisius Rabata Purnama, Jonathan Sze Choong Low, Daren Zong Loong Tan, Claire Y. Barlow, Seeram Ramakrishna
Summary: The study compares the environmental performance of distributed and centralized sorting and recycling of plastic bottles and takeaway containers in Singapore, finding that distributed scenarios have higher environmental impacts in terms of climate change, water depletion, and terrestrial ecotoxicity by 7-30% compared to centralized scenarios.
JOURNAL OF INDUSTRIAL ECOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Wanasinghe Arachchige Dumith Madushanka Jayathilaka, Amutha Chinnappan, Rituparna Ghosh, Chinnappan Baskar, Seeram Ramakrishna
Summary: Passive radiative cooling using metal oxide-doped fibers is an effective energy-saving method that achieves cooling without external energy input. These fibers have high reflectivity and emissivity within the atmospheric window, resulting in significant cooling effects below ambient temperatures.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Polymer Science
Banafsheh Sadeghi, Peyman Sadeghi, Yousef Marfavi, Elaheh Kowsari, Ali Akbar Zareiyazd, Seeram Ramakrishna
Summary: This study introduces two solutions to improve the foaming of PLA: using the extrusion process and adding cellulose nanofibers. Experimental results showed a reduction in the molecular weight of original PLA after extrusion, and an enhancement in crystallization nucleation and cell density with the addition of cellulose nanofibers. The composition of cellulose nanofibers also improved the mechanical and dynamic properties of cellulose nanofiber-reinforced PLA based on the dynamic-mechanical thermal analysis.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Review
Engineering, Environmental
Manik Chandra Biswas, Bodiuzzaman Jony, Pranab Kumar Nandy, Reaz Ahmed Chowdhury, Sudipta Halder, Deepak Kumar, Seeram Ramakrishna, Masud Hassan, Md Ariful Ahsan, Md Enamul Hoque, Muhammad Ali Imam
Summary: Biopolymers have unique tunable characteristics such as biodegradability, biocompatibility, renewability, which are critically important for designing materials for biomedical applications. By changing the polymer components, smart biopolymers can be prepared for more targeted applications, showing a wide range of uses in drug delivery and wound healing, among others.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Polymer Science
Alireza Behzadi, Ghodratollah Hashemi Motlagh, Erfan Rezvani Ghomi, Rasoul Esmaeely Neisiany, Iman Jafari, Amutha Chinnappan, Fatemeh Khosravi, Seeram Ramakrishna
Summary: Organic resorcinol formaldehyde (RF) aerogel was successfully modified by incorporating amine-functionalized graphene oxide (GO) during the synthesis process. The modified RF-GOA showed improved elimination amounts of antibiotics and a high absorption capacity for oxytetracycline and chlortetracycline. The optimal pH values for the modified aerogels were obtained, and the adsorption of antibiotics on the modified aerogels was found to be governed by chemical adsorption.
Review
Engineering, Biomedical
Impreet Kaur, Rajnish Tiwari, V. G. M. Naidu, Seeram Ramakrishna, Dinesh M. Tripathi, Savneet Kaur
Summary: This review highlights the role of bile acids and their signaling pathways in liver regeneration, as well as the potential of bile acid-based therapies in liver diseases. The expression of major bile acid receptors in both the liver and intestine contributes significantly to hepatocyte proliferation, and selective agonists of these pathways are being developed as new therapies for liver diseases. FXR/TGR5 agonists show promise in promoting liver regeneration and improving hepatic insufficiency in chronic liver diseases.
REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE
(2022)
Article
Engineering, Biomedical
Abd Rahim Aiman, Sevakumaran Vigneswari, Nur Athirah Amran, Vikneswaran Murugaiyah, Al-Ashraf Amirul, Seeram Ramakrishna
Summary: Regenerative medicine utilizes cellular and tissue regeneration principles to develop strategies that provide cures rather than treatment for complex diseases, through methods such as stem cells, gene therapy, and tissue engineering. Biomaterials play a crucial role in tissue engineering, and the development of smart biomaterials is the way forward for regenerative medicine applications in the future.
REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE
(2022)
Review
Biotechnology & Applied Microbiology
Raj Kumar, Keshaw Ram Aadil, Kunal Mondal, Yogendra Kumar Mishra, David Oupicky, Seeram Ramakrishna, Ajeet Kaushik
Summary: Neurodegenerative disorders are prevalent among the aging population, causing memory loss and motor coordination issues, leading to significant socio-economic burdens. Nano-biotechnology-based approaches offer effective and personalized alternatives for managing these diseases.
CRITICAL REVIEWS IN BIOTECHNOLOGY
(2022)
Review
Biotechnology & Applied Microbiology
Pavni Rekhi, Moushmi Goswami, Seeram Ramakrishna, Mousumi Debnath
Summary: Polymers are essential in modern living, but those with a large carbon footprint are increasingly seen as harmful to the environment. Polyhydroxyalkanoate (PHA) is regarded as a potential alternative derived from microbial biopolymer. PHA shows promise for various applications, particularly in the medical sector due to its biodegradability and biocompatibility.
CRITICAL REVIEWS IN BIOTECHNOLOGY
(2022)
Article
Chemistry, Physical
Hossein Sharifi, Behrooz Mosallanejad, Mohammadkhalil Mohammadzad, Seyed Morteza Hosseini-Hosseinabad, Seeram Ramakrishna
Summary: The study found that cycling-induced aging at different C-rates significantly impacts the performance of LiFePO4/graphite full cells, especially at relatively high current rates where the formation of an active lithium ion-impermeable covering layer on the anode surface leads to electrode performance degradation. This degradation is mainly attributed to the instability of the electrode/electrolyte interface and the solid electrolyte interphase (SEI) layer, causing the loss of active lithium ions and ultimately resulting in electrode deactivation.
Article
Polymer Science
Lakshmanan Muthulakshmi, A. Varada Rajulu, Seeram Ramakrishna, Sabu Thomas, Catalin I. Pruncu
Summary: This study utilized proteins to prepare biodegradable films with the addition of plasticizers and cross-linking agents, ultimately forming biocomposite films. These films have good biodegradable properties and can be used for food packaging applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Hadi Rouhani, Fatola Farhadi, Mahsa Akbari Kenari, Seeram Ramakrishna
Summary: By optimizing the temperature range for clay treatment, the study achieved a longer service life for the clay and introduced a new process arrangement that significantly reduced operational costs in industrial production.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Review
Chemistry, Analytical
Xue Pan, Lu Bai, Chengcheng Pan, Zhicheng Liu, Seeram Ramakrishna
Summary: This review discusses the fabrication methods and applications of SERS substrates based on electrospun nanofibers, and highlights the challenges and prospects.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2023)
Review
Engineering, Biomedical
Masoud Sarraf, Erfan Rezvani Ghomi, Saeid Alipour, Seeram Ramakrishna, Nazatul Liana Sukiman
Summary: Commercially pure titanium and titanium alloys are widely used in biomedical applications due to their excellent mechanical properties, corrosion resistance, biocompatibility, and antibacterial properties. Future research will focus on advanced manufacturing technologies, effects of alloying elements on biocompatibility, and the role of titanium in regenerative and nanomedicine applications.
BIO-DESIGN AND MANUFACTURING
(2022)
Article
Chemistry, Organic
Fuying Zhu, Yamei Lin
Summary: In this study, a low-metal iron-supported catalyst (Fe20/NC-Mg) was reported for the efficient synthesis of quinoxaline compounds, using water as a solvent and without additional bases. The synergistic effect of FeNx site and Mg (OH)2 nanorods in the catalyst played a key role in achieving high yields (82-91%) in 16 examples. The gram-level synthesis and reusability of the catalysts after four cycles demonstrated its industrial application potential.
Article
Chemistry, Organic
Mikhail Kozlov, Alexey Tyurin, Andrey Dmitrenok, Vyacheslav Rusak, Aleksander Fedorov, Igor Zavarzin, Yulia Volkova
Summary: This study presents a novel and practical synthesis method for phosphorus-substituted 1,3,4-thiadiazolines using phosphorylthioformic acid hydrazides and ketones. The protocol demonstrates operational simplicity, availability of reagents, and tolerance towards different functional groups.
Article
Chemistry, Organic
Jisna Jose, Thomas Mathew
Summary: 2-Cyclopentenone and its derivatives are highly esteemed synthetic intermediates with exceptional utility in organic synthesis. They are favored structural motifs in numerous pharmaceutical drugs and natural products, highlighting their significance. The review discusses the various methods used to synthesize cyclopentenones from 2016 to 2023.
