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
Chemistry, Multidisciplinary
Kousar Ghasemi, Mahdieh Darroudi, Marjan Rahimi, Hossein Rouh, Anju R. Gupta, Chun Cheng, Abbas Amini
Summary: A new green magnetic nanocatalyst was developed for the efficient one-pot synthesis of propargylamine and triazole derivatives, offering high yields and easy separation of the catalyst, demonstrating excellent environmental-friendly properties.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Minh-Huy Dinh Dang, Linh Ho Thuy Nguyen, Trang Thi Thu Nguyen, Ngoc Xuan Dat Mai, Phuong Hoang Tran, Tan Le Hoang Doan
Summary: Sulfate-functionalized Hf-based metal-organic frameworks show high catalytic activity and reusability in heterogeneous catalysis applications. They possess a high-porosity framework and high active sites of functionalized clusters, enabling efficient catalysis of substrates under mild, solvent-free conditions.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Filippo Campagnolo, Matteo Bevilacqua, Marco Baron, Cristina Tubaro, Andrea Biffis, Daniele Zuccaccia
Summary: This study investigates the catalytic performance of dinuclear and mononuclear gold complexes in two reactions, highlighting the importance of NHC ligands and counterions in the catalytic cycles and activation process. Dinuclear catalysts show higher initial activity but poorer stability compared to mononuclear complexes.
Review
Chemistry, Multidisciplinary
Deshal Yadav, Sudipta Datta, Sujan Saha, Subhalaxmi Pradhan, Shweta Kumari, Pavan Kumar Gupta, Vishal Chauhan, Shiva Kumar Saw, Gajanan Sahu
Summary: This review discusses the widely used heterogeneous nanocatalysts for biodiesel synthesis, which are economical, recyclable, active, and non-corrosive. The review also explores their reusability and the critical factors related to reaction conditions.
Article
Chemistry, Multidisciplinary
Niklas F. Both, Anke Spannenberg, Haijun Jiao, Kathrin Junge, Matthias Beller
Summary: The use of bis(NHC) manganese(I) complexes 3 as catalysts for the hydrogenation of esters was investigated. Various aromatic and aliphatic esters were successfully hydrogenated at mild temperatures and low catalyst loadings using complexes 3 with KHBEt3 as additive, highlighting the efficiency of the novel catalytic system. Additionally, the versatility of the developed catalytic system was demonstrated by the hydrogenation of other substrate classes like ketones, nitriles, N-heteroarenes, and alkenes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Rong Ren, Xiaojiang Wang, Hengquan Chen, Hamish Andrew Miller, Ihtasham Salam, John Robert Varcoe, Liang Wu, Youhu Chen, Hong-Gang Liao, Ershuai Liu, Francesco Bartoli, Francesco Vizza, Qingying Jia, Qinggang He
Summary: Researchers developed a structural engineering strategy to immobilize a molecular catalyst onto an ionomer, creating a composite material with a homogeneous catalysis environment inside ion-flow channels. This led to significantly improved mass transfer and turnover frequency due to 100% utilization of catalyst molecules, resulting in advantages of low overpotential and high fuel-cell power density in the homogeneous catalysis system.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Zhenzhen Zhou, Xiao Liu, Jian-Gong Ma, Peng Cheng
Summary: Environmental problem caused by carbon emission has attracted widespread attention. This study developed a new dual-active site catalyst for converting CO2 into formamides, which has the advantages of high efficiency, low cost, and reusability. It provides a reliable approach to unify the advantages of homogeneous and heterogeneous catalysts, and has significant implications for synthetic chemistry and environmental protection.
Article
Chemistry, Physical
Murugan Subaramanian, Palmurukan M. Ramar, Ganesan Sivakumar, Ravishankar G. Kadam, Martin Petr, Radek Zboril, Manoj B. Gawande, Ekambaram Balaraman
Summary: The development of new sustainable nanocatalytic systems for green chemical synthesis is a growing area in chemical science. A reusable heterogeneous N-doped graphene-based manganese nanocatalyst for selective N-alkylation of amines with alcohols is described. Mechanistic studies illustrate that the catalytic reaction follows a domino dehydrogenation-condensation-hydrogenation sequence of alcohols and amines with the formation of water as the sole by-product. The scope of the reaction is extended to the synthesis of pharmaceutically important N-alkylated amine intermediates, and the catalyst showed long-term performance and retained its activity after several recycling experiments.
Article
Energy & Fuels
Maryam Sadehvand, Ahmad Amiri, Ali Pazoki, Farzaneh Fadaei Tirani
Summary: The electrochemical reduction of carbon dioxide to carbon monoxide was investigated using two different catalysts. These catalysts were synthesized and characterized using various spectroscopic techniques. The results showed that both catalysts exhibited high catalytic activity for the reduction of carbon dioxide to carbon monoxide under suitable reaction conditions.
Article
Chemistry, Multidisciplinary
Mehraneh Aghaei-Hashjin, Asieh Yahyazadeh, Esmayeel Abbaspour-Gilandeh
Summary: The study synthesized Zr@IL-Fe3O4 MNPs as a new magnetically recoverable heterogeneous catalyst and characterized it using various techniques. The catalytic behavior of Zr@IL-Fe3O4 MNPs in the synthesis of pyran derivatives was efficient, showing potential for practical applications.
Article
Chemistry, Multidisciplinary
Taito Watanabe, Yutaka Saga, Kento Kosugi, Hikaru Iwami, Mio Kondo, Shigeyuki Masaoka
Summary: A new Ru polypyridyl complex with an N-heterocyclic carbene ligand was synthesized and characterized in this study. The complex exhibited strong absorption in the visible-light region due to the electron-donating nature of the carbene ligand, and showed efficient catalytic activity for visible light-driven CO2 reduction, with a reaction rate of 36.7 h(-1).
CHEMICAL COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Majid Vafaeezadeh, Werner R. Thiel
Summary: This review systematically covers recent and significant achievements in the application of task-specific Janus nanomaterials as heterogeneous catalysts in various types of chemical reactions, and provides an outlook on possible future applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Thomas M. Horsley Downie, Mary F. Mahon, John P. Lowe, Rowan M. Bailey, David J. Liptrot
Summary: The reaction of phosphorus(III) esters with pinacolborane using an NHC-copper(I) catalyst allows for the quick generation of various phosphines, which can be further used in the synthesis of different phosphorus-containing compounds. This telescoped approach provides access to a range of P-H bonded species with high conversions, enabling the synthesis of diverse phosphorus-based molecules without the need to handle toxic compounds.
Article
Chemistry, Multidisciplinary
Xiao Cai, Yong Liu, Guangjun Li, Weigang Hu, Xu Liu, Mingyang Chen, Weiping Ding, Yan Zhu
Summary: It has been shown that atomically precise metal clusters, such as Pd1Au8(PPh3)(8)(2+), can play a crucial role in the catalytic efficiency of the Suzuki-Miyaura cross-coupling process. The cooperative effect between the central Pd atom and the peripheral Au atoms in the Pd1Au8(PPh3)(8)(2+) cluster has been identified as a key factor in controlling the cross-coupling reaction. By incorporating these clusters into a porous resin, a heterogeneous catalyst called Pd1Au8@Resin has been developed, which demonstrates enhanced catalyst recyclability and continuous performance in the cross-coupling reaction.
ADVANCED MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Wei-Han Hui, Yen-Lin Chen, Shu-Wei Chang
Summary: Crosslinking affects the mechanical behavior and tissue metabolism of collagen-based tissues. Aging and diabetes alter the crosslinking type and density, thus changing tissue properties. High-connectivity enzymatic crosslinking and advanced-glycation end-products result in uniform deformation under daily activity, while low-connectivity enzymatic crosslinking does not. High-connectivity model displays more sliding, while AGEs induce instability in structures near the binding sites.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Yao-Bin Ma, Xiao-Qiu Zhou, Wei-Dan Jiang, Pei Wu, Yang Liu, Shu-Wei Li, Ling Tang, Lu Zhang, Hai-Feng Mi, Lin Feng
Summary: Tea polyphenols (TPs) are an inexpensive feed additive that can protect the gill function of fish against Flavobacterium columnare (F. columnare) through various mechanisms, including suppression of oxidative stress, apoptosis, and inflammation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Yan-Jia Guo, Jing-Ru Pang, Yu Zhang, Zhong-Rui Li, Xiao-Lin Zi, Hong-Min Liu, Ning Wang, Li-Juan Zhao, Ya Gao, Bo Wang, Piet Herdewijn, Cheng-Yun Jin, Ying Liu, Yi-Chao Zheng
Summary: This study identifies the conjugation of NEDD8 to LSD1 and its impact on GC cells, revealing the significance of LSD1 neddylation in GC.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Review
Biochemistry & Molecular Biology
Geum-Jae Jeong, Fazlurrahman Khan, Nazia Tabassum, Young-Mog Kim
Summary: Vibrio species are motile gram-negative bacteria commonly found in aquatic environments. They can adapt to environmental fluctuations and develop protective mechanisms against host immune systems. Different types of sigma and anti-sigma factors play important roles in regulating gene expression and virulence in Vibrio species.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Zahra Mohammadbagheri, Behrooz Movahedi, Shaghayegh Saeedi, Abbas Rahmati
Summary: In this study, a reusable biobased composite hydrogel was successfully synthesized and used for the removal of Tl(I) from aqueous solutions. The hydrogel exhibited high adsorption capacity and thermal stability, and the adsorption process was found to be thermodynamically spontaneous. The results demonstrated that the hydrogel can be reused multiple times without significant loss of its adsorption capacity.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Iqra Batool, Muhammad Imran, Ayesha Anwar, Farhan Ahmed Khan, Afrah E. Mohammed, Ashwag Shami, Hafiz Iqbal
Summary: Enzyme immobilization on ZnO/SnO2 and ZnO/SnO2/SA nanocomposites was studied, and the catalytic and biochemical characteristics of the immobilized enzyme were investigated. The results showed that ZnO/SnO2 and ZnO/SnO2/SA nanostructures are suitable carriers for enzyme immobilization.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Elias Mosaffa, Dhruvi Patel, Nasim Amiri Ramsheh, Rishikumar Indravadan Patel, Atanu Banerjee, Hossein Ghafuri
Summary: In this study, a unique 3D bead structure of adsorbent, composed of bacterial cellulose microfilaments reinforced chitosan adorned with melamine 2D plates, was synthesized for anionic dye removal. The adsorbent showed high specific surface area and abundant functional groups, resulting in exceptional adsorption capacity. The characteristics and optimal conditions of the adsorbent were assessed and analyzed.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Carolina Gismene, Jorge Enrique Hernandez Gonzalez, Marilia de Freitas Calmon, Andrey Fabricio Ziem Nascimento, Angela Rocio Nino Santisteban, Felipe Antunes Calil, Alana Della Torre da Silva, Paula Rahal, Rejane Maira Goes, Raghuvir Krishnaswamy Arni, Ricardo Barros Mariutti
Summary: Mammaliicoccus sciuri, a bacterium of clinical and veterinary relevance, expresses the virulence factor Exfoliative Toxin C (ExhC), which binds specifically to desmoglein-1 (Dsg1) and plays a role in tissue integrity. This study investigates the necrotic activity of ExhC and identifies a variant lacking necrotic potential but retaining enzymatic activity through mutagenesis experiments and crystal structure determination.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Bibhas K. Bhunia, Ashutosh Bandyopadhyay, Souradeep Dey, Biman B. Mandal
Summary: Intervertebral disc degeneration is a major cause of chronic low back pain and disability. Researchers have developed a bioactive silk-based hybrid hydrogel system functionalized with decellularized human Wharton's jelly extracellular matrix as bioactive cues. The hydrogels mimic the rheological and mechanical properties of the native nucleus pulposus tissue and support cell viability, proliferation, and tissue maturation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Qun Zhang, Yonggan Yan, Zhao Li, Jing Du, Kai Zhang, Liguo Zhang, Ting Wang, Alberto Bianco, Shaohua Ge, Baojin Ma
Summary: A new crosslinking strategy has been devised to construct injectable sodium alginate hydrogels, which can be regulated for injectability and have great potential in biomedical applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Seong Eun Hong, Ji-Soo Lee, Hyeon Gyu Lee
Summary: The potential of multi-layer nanoemulsions for improving the cellular uptake, antioxidant activity, and in vitro bioaccessibility of alpha-tocopherol was examined. The results showed that the multi-layer nanoemulsions significantly enhanced the cellular uptake and antioxidant activity of alpha-tocopherol compared to free coumarin 6. Furthermore, the use of chitosan and dextran sulfate as wall materials in the multi-layer nanoemulsions led to even higher cellular uptake, in vitro bioaccessibility, and antioxidant activity of alpha-tocopherol.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Jingjing Yu, Yanhui Zhang, Ruoning Zhang, Yanxiang Gao, Like Mao
Summary: High internal phase emulsions (HIPEs) based on beeswax (BW) oleogels and octenyl succinic acid starch (OSA starch) were prepared by a simple one-step method. The results showed that oleogelation improved the stability and encapsulation capability of the HIPEs, which is significant for the development of novel healthy food.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Review
Biochemistry & Molecular Biology
Bi-Feng Yao, Xiu-Ju Luo, Jun Peng
Summary: The balanced and continuous fission and fusion of mitochondria, regulated by OPA1, are important for maintaining mitochondrial dynamics in cardiovascular disorders. Understanding the role of OPA1 in mitochondrial fusion can provide insights into the pathogenesis of cardiovascular diseases.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Review
Biochemistry & Molecular Biology
Gokul Paramasivam, Anandhavelu Sanmugam, Vishnu Vardhan Palem, Murugan Sevanan, Ananda Babu Sairam, Nachiappan Nachiappan, Buhyun Youn, Jung Sub Lee, Muthuchamy Nallal, Kang Hyun Park
Summary: Nanomaterials are being used to deliver therapeutic agents in living systems. Different nanotechnological applications such as immunosensors, immune assays, and drug delivery are being implemented using nanotechnology. Genomics plays a crucial role in selecting appropriate drugs for personalized cancer therapy. It helps in analyzing gene and protein expression, disease classification, and designing disease models. Delivering drugs to specific areas using nanoparticles is a challenging issue.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Jing Li, Wei Wang, Han Wu, Feng Peng, Hui Gao, Ying Guan
Summary: In this study, CMH-based CPF films were prepared and their thermal and barrier properties were successfully regulated. The tensile strength and water vapor barrier property of CPF films were significantly improved, making them promising for food packaging applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)