Article
Engineering, Chemical
Luyao Ren, Qing-Bai Chen, Jianyou Wang, Jinli Zhao, Yue Wang, Peng-Fei Li, Lin Dong
Summary: Recycling toxic ethylene glycol (EG) solutions is crucial for saving costs and preventing environmental hazards. Electrodialysis (ED) with a modified cation exchange membrane (CEM) was used to remove salts from high-saline EG wastewater. The modified CEM significantly reduced the leakage of EG, providing new insights for the desalination of EG solutions.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Mi-hyun Lee, Heemin Byeon, Siwon Kim, Woojin Yoon, Juneseo Park, Hoseop Yun, Sungju Yu, Hye-Young Jang
Summary: Novel tri-N-heterocyclic carbene (triNHC)-coordinated iridium catalysts (Ir(triNHC)) efficiently generate clean hydrogen and useful Cn acids from biomass-derived alcohols. The high efficiency and fast rate of hydrogen production from sustainable ethylene glycol are attributed to the increased electron-richness of Ir(triNHC) complexes. Mechanistic studies support the proposed reaction mechanisms, making this Ir(triNHC)-catalyzed process a promising carbon-neutral route for converting sustainable alcohols into valuable fuels and chemicals.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Polymer Science
Balakondareddy Sana, Nancy Ferrentino, Taha Behroozi Kohlan, Yaqun Liu, Valdas Pasiskevicius, Anna Finne-Wistrand, Daniela Pappalardo
Summary: We have designed a light-sensitive polymer material that self-assembles into core-shell nanoparticles and releases encapsulated fluorescent dye upon light irradiation.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Energy & Fuels
S. Ibeh, P. Jaeger
Summary: The study analyzes the interfacial tension, fluid mixture densities and drop volumes of TEG and TEG + water in CO(2) medium. The static interfacial tension of TEG-CO2 and TEG + water-CO2 shows a decreasing trend as the pressure increases, but it strongly increases with higher temperatures. Dynamic interfacial tension reaches a constant value after a certain time, and the drop volume increases with a volumetric expansion. Static values of interfacial tension can be applied with reasonable precision for process design.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2023)
Article
Engineering, Multidisciplinary
R. Prasanna Shankara, N. R. Banapurmath, Abhinandan D'Souza, A. M. Sajjan, N. H. Ayachit, T. M. Yunus Khan, Irfan Anjum Badruddin, Sarfaraz Kamangar
Summary: Recent studies have shown that nanofluids have the potential to enhance the heat transfer properties of coolants in car radiators. By combining ethylene glycol and deionized water with graphene oxide nanoparticles, the heat transfer characteristics of the nanofluids were experimentally investigated. The optimized combination of 60% ethylene glycol, 40% deionized water, and 0.1 wt% graphene oxide exhibited higher heat transfer characteristics and showed potential for reducing frontal area and improving fuel efficiency in industrial design.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Leton C. Saha, Gota Kikugawa
Summary: This study used molecular dynamics simulation to investigate the interfacial heat condition between a PEG self-assembled monolayer and water. The results showed that the thermal boundary conductance of the PEG SAM is higher than that of the alkane-based SAM traditionally used. Structural properties of the PEG SAM were found to greatly influence the TBC of the interface, rather than vibrational properties matching between SAM terminal and water.
JOURNAL OF PHYSICAL CHEMISTRY B
(2021)
Article
Thermodynamics
Sonia Nawaz, Hamza Babar, Hafiz Muhammad Ali, Muhammad Usman Sajid, Muhammad Mansoor Janjua, Zafar Said, Arun Kumar Tiwari, L. Syam Sundar, Changhe Li
Summary: This study investigates the heat transfer characteristics of an oriented square-shaped pin fin heat sink using graphene oxide (GO) nanofluid. Experimental results show that the nanofluid exhibits better thermal performance compared to the base fluid, due to the enhanced thermal conductivity and reduced thermal resistance. The improvement in thermal performance is particularly significant at low Reynolds numbers.
APPLIED THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Qingchun Yang, Simin Xu, Jinliang Zhang, Chenglin Liu, Dawei Zhang, Huairong Zhou, Shumei Mei, Minglin Gao, Hongyan Liu
Summary: The coal to ethylene glycol technology has been developed successfully due to the abundant coal reserves and low production costs. However, the high CO2 emissions have hindered its sustainable development. By integrating methane tri-reforming technology, the proposed process can achieve low carbon emissions and high efficiency, showing increased efficiencies, cost savings, and reduced CO2 emissions compared to conventional processes.
Article
Chemistry, Physical
Xiaoya Ding, Ye Wang, Jiaying Liu, Peng Zhang, Gao Li, Tianmeng Sun, Chunsheng Xiao
Summary: The injectable in situ forming double-network hydrogel developed in this study plays a crucial role in cell transplantation by providing cell protection, long-term retention, and support for cell growth. These functions are achieved through dynamic cross-linking and secondary cross-linking networks in the hydrogel.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Applied
Jintian Wang, Zhiqiang Chen, Hani E. Naguib
Summary: In this study, a novel double crosslinked chitin aerogel was introduced via etherification with EGDE for mechanical reinforcement. The EGDE crosslinked samples showed increased compressive strength and modulus, while maintaining the lightweight and high porosity of the aerogel. This study demonstrates that EGDE is an effective chemical crosslinker for reinforced chitin aerogels.
CARBOHYDRATE POLYMERS
(2021)
Article
Engineering, Chemical
Jiahao Wang, Hao Lyu, Daoyan Liu, Chengtian Cui, Jinsheng Sun
Summary: Although there are many reports on horizontal comparisons and process revamping, algorithm optimization achievements for distillation sequencing in coal to ethylene glycol are still lacking due to high-dimension and strong nonconvexity characteristics. This study addresses this issue by utilizing the self-adapting dynamic differential evolution algorithm to simultaneously optimize the parameters and heat integration of the coal to ethylene glycol distillation scheme and double-effect superstructure. A redistribution strategy is adopted to mitigate the influence of nonconvexity, expanding and shrinking the population search domain to determine the global optimal solution. The results show significant improvements in total annual cost and CO2 emissions for the optimized process and superstructure compared to sequential optimization.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Analytical
Hana Cho, Sun Young Park, Dayoung Youn, Kyung Eun Park, Jin Hui Joo, Min Hee Lee, Dong-Sik Shin
Summary: The technology of single-cell microarrays enables the capture and detection of individual cell activity, and allows for the study of cell function and gene expression by controlling cell arrangement and using mitochondria-targetable probes in real-time.
Article
Chemistry, Physical
Amit Kumar, Chandra Bhushan Kumar, D. B. Lata
Summary: The utilization of hydrogen as a secondary fuel along with tri-ethylene glycol mono methyl ether (TGME) as a fuel additive in diesel demonstrated improved engine performance and reduced emissions. The addition of hydrogen enhanced brake thermal efficiency, with the highest efficiency observed at load conditions of 30-35% hydrogen. The inclusion of TGME further improved thermal efficiency and reduced ignition delay, resulting in optimum performance and emissions at 30% load with 25% hydrogen.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Ting-ting Gao, Yong-gang Sun, Ying-bo Zhu, Feng Lin, Yu-dan Zhong, Yuan-yuan Li, Wen-xin Ji, Yu-long Ma
Summary: The study successfully converted cellulose to polyols using mixed metal oxide catalysts, achieving high conversion rates and cycling performance. Characterization showed that the synthesized catalysts had small active metal particle sizes, with ZnO isomerizing and Ni rapidly hydrogenating, forming a multi-functional synergistic catalytic process.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Polymer Science
Naofumi Naga, Daisuke Inose, Tomomi Ishida, Kyohei Kubota, Hassan Nageh, Tamaki Nakano
Summary: Polymer networks were synthesized by addition reactions of tri-functional amine, TAEA or PPGTA, and PEGDA or PEGDE in DMSO as a solvent. Increasing monomer concentration increased Young's modulus and breaking stress of the gels. Gels with PPGTA showed flexible features compared to those with TAEA, and high molecular weight gels displayed lower Young's modulus and higher breaking strain.
Article
Chemistry, Multidisciplinary
Alexander M. Prophet, Kritanjan Polley, Gary J. Van Berkel, David T. Limmer, Kevin R. Wilson
Summary: The oxidation kinetics of iodide by ozone at the air-water interface is studied in single microdroplets. Molecular simulations and kinetic modeling are used to understand the underlying multiphase mechanism.
Article
Chemistry, Multidisciplinary
Rong Zhang, Jiajing Lan, Fei Wang, Shumei Chen, Jian Zhang
Summary: By utilizing 1,1'-ferrocene dicarboxylic acid as a chelating and surface protection ligand, we have synthesized multi-nuclear indium oxide clusters with varying nuclear sizes, including heptanuclear and thirteen-nuclear clusters. These clusters possess labile coordination sites, allowing for structural modification and self-assembly, resulting in the formation of various cluster structures.
Article
Chemistry, Multidisciplinary
Hui Wang, Hui Liu, Mingsen Wang, Jiaheng Hou, Yongjun Li, Yuancheng Wang, Yingjie Zhao
Summary: Two supramolecular complexes were prepared using CBs and M1, and their single-crystal structures were analyzed by SCXRD. The unexpected 1:2 self-assembly structure between M1 and CB[8] was discovered for the first time. These complexes exhibit unique photophysical properties and provide valuable information about the structure and photophysical properties of supramolecular complexes.
Article
Chemistry, Multidisciplinary
Chang-Hee Lee, Sookil Park, Sanggil Kim, Ji Young Hyun, Hyun Soo Lee, Injae Shin
Summary: The epidermal growth factor receptor (EGFR) is a cell-surface glycoprotein involved in cell proliferation and tumor development. This study used a fluorescently labeled EGFR to investigate its time-dependent endocytosis in live cells and found that appended glycans affect EGFR internalization. Additionally, the study detected sialic acid residues attached to EGFR on the live cell surface using FRET-based imaging. This research provides valuable insights into the cellular functions of EGFR.
Article
Chemistry, Multidisciplinary
Subhankar Sahu, Lokesh Kumar, Sumita Das, Dipti Gupta, Ruchi Anand
Summary: This study proposes a strategy that combines organic electronics with biosensor scaffolds to create a compact device for monitoring environmental aromatic pollution. By coupling biosensing protein MopR with an organic electrochemical transistor (OECT), a sensor module capable of efficient detection of phenol was designed. Exclusive phenol detection with minimal loss of sensitivity could be achieved in complex pollutant mixtures and real environmental samples.
Review
Chemistry, Multidisciplinary
Changseok Lee, Hyung-Joon Kang, Sungwoo Hong
Summary: The formation of C-N bonds through hydroamination reactions catalyzed by nickel hydrides has been a topic of recent interest. This approach offers a way to efficiently transform a variety of alkene and alkyne substrates into compounds enriched with C-N bonds. The review provides a concise overview of the underlying reaction mechanisms and aims to stimulate further progress in NiH-catalytic techniques and catalyst design.
Article
Chemistry, Multidisciplinary
Yueci Wu, Lu-Lu Sun, Hai-Hao Han, Xiao-Peng He, Weiguo Cao, Tony D. James
Summary: Drug-induced liver injury (DILI) is a common cause of acute liver failure in the USA and Europe, but most cases can be recovered or prevented by discontinuing the offending drug. Recent research has found that peroxynitrite (ONOO-) can be used as a potential indicator for early diagnosis of DILI, and there is an urgent need to establish a method to detect and track peroxynitrite in DILI cases. In this study, a FRET-based nano fluorescent probe CD-N-I was developed, which showed high selectivity and sensitivity in detecting peroxynitrite. The probe successfully detected exogenous peroxynitrite in live cells and endogenous peroxynitrite in APAP-induced liver injury of HepG2 cells.
Article
Chemistry, Multidisciplinary
Dmitry L. Lipilin, Mikhail O. Zubkov, Mikhail D. Kosobokov, Alexander D. Dilman
Summary: This article describes a direct photocatalytic method for the thiolation of unprotected acids, which was previously challenging. By using a thionocarbonate reagent with an N-O bond, the efficient conversion of carboxylic acids to thiols is achieved.
Article
Chemistry, Multidisciplinary
Jason Malenfant, Lucille Kuster, Yohann Gagne, Kouassi Signo, Maxime Denis, Sylvain Canesi, Mathieu Frenette
Summary: Raman microscopy can reveal compound-specific vibrational fingerprints without sample preparation. The combination of efficient theoretical calculations and a user-friendly software can accurately predict peak positions and provide match scores to assist with structure determination.
Article
Chemistry, Multidisciplinary
Jayoh A. Hernandez, Paul S. Micus, Sean Alec Lois Sunga, Luca Mazzei, Stefano Ciurli, Gabriele Meloni
Summary: Essential trace metals play crucial roles in the survival and virulence of bacterial pathogens. Helicobacter pylori requires nickel for colonization and persistence in the stomach, and NixA is an essential nickel transporter in this process. This study characterizes the selectivity and electrogenic nature of NixA-mediated nickel transport.
Article
Chemistry, Multidisciplinary
Tarali Devi, Kuheli Dutta, Jennifer Deutscher, Stefan Mebs, Uwe Kuhlmann, Michael Haumann, Beatrice Cula, Holger Dau, Peter Hildebrandt, Kallol Ray
Summary: This study emphasizes the importance of subtle electronic changes and secondary interactions in the stability of biologically relevant metal-dioxygen intermediates. It also shows that the role of the chloride ligand in stabilizing the Fe-III-(OOBu)-Bu-t moiety can extend to other anions, including the thiolate ligand.
Article
Chemistry, Multidisciplinary
Jacqueline R. Santhouse, Jeremy M. G. Leung, Lillian T. Chong, W. Seth Horne
Summary: By studying the folding kinetics and mechanism of the BdpA sequence, researchers found that altering the backbone connectivity can affect protein folding. This suggests that protein mimetic chains have a significant degree of plasticity in transitioning between unfolded and folded states.
Article
Chemistry, Multidisciplinary
Divanshu Gupta, Ralf Einholz, Holger F. Bettinger
Summary: This study presents the first direct spectroscopic evidence of a cyclic seven-membered iminoborane. Compared to linear amino-iminoboranes, this cyclic iminoborane exhibits weakened bond strength and lower Lewis acidity value. The study suggests that the reduced ring strain of cyclic iminoborane prevents nitrogen fixation but allows facile (2 + 2) cycloaddition reaction with C2H4.
Article
Chemistry, Multidisciplinary
Renny Mathew, Aniruddha Mazumder, Praveen Kumar, Julie Matula, Sharmarke Mohamed, Petr Brazda, Mahesh Hariharan, Brijith Thomas
Summary: This study reveals the packing arrangement of partially disordered nitro-perylenediimide (NO2-PDI) using a synergistic approach that combines 3D ED, ssNMR, and DFT techniques. By overcoming these challenges, this methodology opens up new avenues for material characterization, driving exciting advancements in the field.