Article
Chemistry, Physical
Athanasios A. Papaderakis, Kacper Polus, Pallav Kant, Finn Box, Bruno Etcheverry, Conor Byrne, Martin Quinn, Alex Walton, Anne Juel, Robert A. W. Dryfe
Summary: This study demonstrates that reversible control of wetting on carbon surfaces can be achieved using highly concentrated aqueous electrolytes, and can be quantitatively understood using models of the interfacial capacitance. This has significant implications for the performance of carbon-based aqueous energy-storage systems and electronic and microfluidic devices.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Engineering, Environmental
C. F. Martins, L. A. Neves, R. Chagas, L. M. Ferreira, C. A. M. Afonso, I. M. Coelhoso, J. G. Crespo, J. PB. Mota
Summary: This study investigates the absorption of carbon dioxide (CO2) by ionic liquids (ILs) with quaternary ammonium cations combined with biocompatible anions from renewable sources. The research combines theoretical modeling and experimental analysis to understand the absorption characteristics and dynamics. Experimental validation of the proposed model provides insights for designing new absorption processes for CO2 capture.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Na Li, Ying Wang, Leping Dang, Bo Zhang, Zhanzhong Wang
Summary: In this study, the effects of four hydrophilic ionic liquids (ILs) on lysozyme activity and molecular interaction in aqueous solutions were investigated. The results showed that the effect of ILs on lysozyme activity depended on their concentration. ILs exhibited a quenching effect on the fluorescence of lysozyme, and this effect increased with increasing ILs concentration. The conformational changes of lysozyme triggered by changes in the microenvironment surrounding Trp62 or Trp108 were found to be responsible for the effects of ILs on lysozyme activity.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Mohammad M. Ghiasi, Amir H. Mohammadi, Sohrab Zendehboudi
Summary: This study modeled the three-phase equilibria of methane hydrate in IL aqueous solutions using LSSVM, ANFIS, and CART models, revealing that the LSSVM approach outperforms CART and ANFIS models in representing dissociation temperatures. The findings suggest that the effects of ILs on methane hydrate stability conditions can aid in effective hydrate management.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Chaojie Pang, Jiage Liu, Rui Peng, Yingying Guo, Zhiyong Li, Huiyong Wang
Summary: A green, highly efficient and scalable tactic to exfoliate bulk titanium disulfide powders in aqueous ionic liquids solutions has been developed. The exfoliation yield can reach 57.6%, surpassing most values reported in literatures. This liquid phase delamination approach has great potential in manufacturing high activity electrocatalysis materials.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Environmental
Junwang Zhang, Xinyu Zhu, Xiaoxiao Xu, Qingqin Sun, Ligang Wei, Kunlan Li, Shangru Zhai, Qingda An
Summary: The oxidative depolymerization of alkali lignin was achieved using Keggin structure polyoxometalate-ionic liquid (POM-IL) as a catalyst under aerobic conditions. The effects of different catalysts and the acidity of aqueous IL solutions on lignin conversion and product distribution were investigated. Phenolic products had the highest yield and selectivity when POM-IL1 was used, while ketone products had the highest conversion and selectivity when POM-IL2 and POM-IL3 were used. The results demonstrate the successful oxidation of lignin fragments into platform compounds using aqueous acidic ILs (AILs) catalyzed by Keggin structure POM-IL.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Barbara M. C. Vaz, Margarida Martins, Leonardo M. de Souza Mesquita, Marcia C. Neves, Andreia P. M. Fernandes, Diana C. G. A. Pinto, M. Grata P. M. S. Neves, Joao A. P. Coutinho, Sonia P. M. Ventura
Summary: There is a need for convenient and fast techniques to purify biomolecules, and solid-phase extraction can help separate compounds in complex extracts. This study proposed an innovative procedure for eluting chlorophyll, showing that the resin can be reused without losing efficiency.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Applied
Lili Zhang, Yan Li, Jing Gao
Summary: In this study, a novel aqueous biphasic system composed of tributyloctylphosphine chloride and choline chloride:D-fructose was developed for the selective extraction of Ast(1) and Ast(2) from Haematococcus pluvialis. The system showed excellent performance, with a high yield and partition coefficient of astaxanthin, as well as selective separation of Ast(1) and Ast(2) with a high coefficient of specificity.
Article
Chemistry, Multidisciplinary
Yuntao Tang, Yige Zhang, Xi Chen, Xiaowen Xie, Ning Zhou, Zhifeng Dai, Yubing Xiong
Summary: Thermally induced reversible up/down migration of poly(ionic liquid)s in aqueous two-phase systems was achieved for the first time in this study. The upper and lower phases of the systems could be easily tuned using the grafting degree of modified poly(ionic liquid)s, and a reversible two-phase/single-phase transition was realized under UV irradiation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Chemical
Yuqiu Chen, Xinyan Liu, Yang Lei, Xiaodong Liang, Rafiqul Gani, Georgios M. M. Kontogeorgis
Summary: Ionic liquids (ILs) have gained significant attention in academia and industries for their excellent performance in various applications. Efficient recovery of ILs from dilute aqueous solutions is crucial for the acceptance and implementation of IL-based technologies by industry. In this study, a practical and cost-effective hybrid process design combining aqueous two-phase extraction, membrane separation, and distillation was proposed for the recovery of hydrophilic ILs.
Article
Chemistry, Analytical
Yicong Wang, Shanshan Wang, Leilei Liu
Summary: This study developed and studied diverse ILATPS systems for the extraction of geniposidic acid and aucubin, revealing that the alkyl side chains of ILs contribute to ATPS formation. The performance of potential salts in phase separation was compared, and single-factor experiments were conducted to investigate extraction parameters. Under optimal conditions, high extraction efficiency and partition coefficient were achieved. Additionally, recycling of IL without organic solvents and theoretical references for similar extractions were explored.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Physical
Raimondas Kreivaitis, Arturas Kupcinskas, Milda Gumbyte, Jolanta Treinyte
Summary: This study investigates the impact of bis(2-hydroxyethyl)ammonium oleate protic ionic liquid (PIL) as an additive on the tribological properties of aqueous solutions of glycerol and polyethylene glycol. The introduction of PIL improves the wettability, corrosion-prevention ability, lubricity, and load-carrying ability of the base fluids.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Polymer Science
Biao Zhang, Guillaume Sudre, Guilhem Quintard, Anatoli Serghei, Julien Bernard, Etienne Fleury, Aurelia Charlot
Summary: This study mixed RAFT-made poly(ionic liquid) chains with an ionic liquid, leading to homogeneous and transparent solutions due to similarities in structure and polarity. Rheology investigation showed that the solution's viscoelastic properties can be finely tuned by adjusting the chain molar mass and concentration. The high ionic conductivity and multi-scale local homogeneity of the PIL/IL solutions were confirmed through X-ray scattering experiments and microscopy analysis.
Article
Engineering, Environmental
Edris Bazrafshan, Amin Allah Zarei, Leili Mohammadi, Muhammad Nadeem Zafar, Maryam Foroughi, Summan Aman, Faezeh Sabri, Amir Hossein Mahvi, Farahnaz Barahuie, Muddassar Zafar
Summary: The study found that the novel ionic liquid modified magnetic activated carbon nanocomposite had extremely high adsorption efficiency for tetracycline, with Langmuir model showing the best fit and a high adsorption capacity. The regeneration study demonstrated a decent reusability of the IL@mAC, suggesting its high applicability and potential for practical applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Jun Shang, Yanni Guo, Deliang He, Wei Qu, Yining Tang, Lei Zhou, Rilong Zhu
Summary: The novel graphene oxide-dicationic ionic liquid composite (GO-DIL) showed good adsorption performance for Cr(VI), with a high maximum adsorption capacity and maintained high adsorption capacity even after multiple cycles. The adsorption process fit well with pseudo-first-order kinetic model and Langmuir model, indicating that adsorption is a spontaneous endothermic process.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Hao Zhe Yoh, Yaping Chen, Stella Aslanoglou, Sherman Wong, Zlatan Trifunovic, Simon Crawford, Esther Lestrell, Craig Priest, Maria Alba, Helmut Thissen, Nicolas H. Voelcker, Roey Elnathan
Summary: This study explores cell responses to substrate stiffness by engineering polymeric nanoneedle arrays of different stiffness, demonstrating potential intracellular delivery mechanisms of polymeric nanoneedles through interactions between cells and different polymeric substrates with varying stiffness.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Weikun Huang, Tongzhi Wu, Cong Xie, Christopher K. Rayner, Craig Priest, Heike Ebendorff-Heidepriem, Jiangbo (Tim) Zhao
Summary: The article discusses the importance of calcium ions in intra- and inter-cellular signaling, particularly in insulin secretion. Various sensors for detecting calcium ions are described, with a focus on emerging approaches and challenges in the field.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Editorial Material
Chemistry, Multidisciplinary
Roey Elnathan, Andrew Dzurak, Justin Cooper-White, Craig Priest, Hark Hoe Tan, Michael Withford, Gordon Wallace, Lorenzo Faraone, Tom Eddershaw, Ian Griffiths, Jane Fitzpatrick, Nicolas H. Voelcker
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Chemical
Daisy Yang, Aliaa Shallan, Michael C. Breadmore, Christopher Greet, Craig Priest
Summary: This study successfully applied an open microfluidic chip for real-time continuous monitoring of EDTA extractable iron in mineral slurries, providing a convenient and efficient analysis method for depressing mineral flotation in mineral processing.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Geosciences, Multidisciplinary
Rossen Sedev, Hamed Akhondzadeh, Mujahid Ali, Alireza Keshavarz, Stefan Iglauer
Summary: Rock wettability is a key factor in the storage of hydrogen, affecting its capacity and safety. The study found that under realistic storage conditions, the surface of bituminous coal exhibited weak water-wettability. The pressure of hydrogen increased the contact angles of brine on the coal surface at 25 degrees C but had no impact at higher temperatures. A thermodynamic model was proposed to describe the observed behavior, supporting the development of large-scale geostorage technologies for hydrogen.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Engineering, Chemical
Daisy Yang, Moein Navvab Kashani, Craig Priest
Summary: In this study, a multistream microchip was used for industrial-scale microfluidic solvent extraction of high-value metals, showing significantly higher throughput without compromising extraction performance. The approach to steady state in a three-stage counter-current extraction circuit was monitored, proving the effectiveness of this method.
MINERALS ENGINEERING
(2022)
Article
Chemistry, Analytical
Nicolas Riesen, Zane Q. Peterkovic, Bin Guan, Alexandre Francois, David G. Lancaster, Craig Priest
Summary: The rapid development of optofluidic technologies has led to the demand for sensing platforms that are easy to use, have simple sample manipulation, and provide high performance and sensitivity. This study presents an integrated optofluidic sensor that combines a pillar array-based open microfluidic chip and caged dye-doped whispering gallery mode microspheres. The sensor shows potential for simple real-time monitoring of liquids. The sensor achieves a refractive index sensitivity of approximately 40 nm/RIU and a detection limit of approximately 3 x 10(-3) RIU (approximately 20 mg/mL glucose).
Article
Engineering, Chemical
Wanjia Zhang, Xu Jiang, John Ralston, Jian Cao, Xin Jin, Wei Sun, Zhiyong Gao
Summary: Eosin Y, a commonly used dye for cotton and silk, is highly toxic and difficult to degrade. Around 20% of it becomes organic dye wastewater during the printing and dyeing process, posing serious harm to the environment and human health. In this study, naturally oxidized pyrite was chosen as a promising photocatalyst to degrade Eosin Y, achieving over 90% degradation under specific conditions.
MINERALS ENGINEERING
(2023)
Article
Engineering, Chemical
Yunxia Wu, Jianyong He, Ruihua Fan, Qiuhao Wang, Wei Sun, John Ralston, Zhiyong Gao
Summary: This study investigates the influence of surface composition on the flotation performance of zircon samples. Surface pretreatment is found to improve the purity and flotation performance of zircon through the removal of impurities and increased exposure of specific phases. The study also reveals that the interaction between NaOL and zircon is ionic in nature.
MINERALS ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Nicolas Riesen, Craig Priest, David G. G. Lancaster, Kate Badek, Hans Riesen
Summary: Thin films of BaFCl:Sm nanocrystals with a polymer binder were used to create fluorescence images. The films were exposed to UV-C light, resulting in the conversion of Sm3+ to Sm2+ ions and a large linear dynamic range. The red fluorescence of Sm2+ was read-out using blue-violet illumination and a laser scanning confocal microscope, with a resolution equivalent to 125 line pairs per mm or 6400 dpi for 16 greyscale levels. Higher resolutions could be achieved with collimated UV-C laser exposure or higher resolution photomasks. Ultra-high resolution binary fluorescence images with resolutions down to 2 μm (250 line pairs per mm, 12,700 dpi) were also created. The technology could have applications in anti-counterfeiting labeling.
Article
Physics, Applied
Alexandru Gheorghiu, Daisy Yang, Iliana Delcheva, Craig Priest, Melanie MacGregor
Summary: Plasma-polymerized polyoxazoline (POx) thin films can be used as a fast and solvent-free method for electrode functionalization. This study investigated the effects of current exposure, extended incubation, and repeated electrode rinses on the stability of polymethyloxazoline thin films. The films were found to become more diffusive after incubation and rinse steps, and changes in nanotopography were observed after exposure to current, suggesting a change in the film structure.
PLASMA PROCESSES AND POLYMERS
(2023)
Article
Materials Science, Multidisciplinary
Alex Gheorghiu, Daisy Yang, Tiexin Li, Essam M. Dief, Nadim Darwish, Craig Priest, Melanie Macgregor
Summary: Plasma deposited polyoxazoline thin films are a promising solution for immuno-functionalization of electrochemical biosensors. By incorporating gold nanoparticles, the conductivity of the films can be enhanced. Surface bound electrochemical measurements and conductive atomic force microscopy were used to uncover the mechanism for nanoparticle-mediated electron transport through the insulating matrix.
MATERIALS ADVANCES
(2023)
Article
Engineering, Chemical
Wanjia Zhang, John Ralston, Wei Sun, Zhitao Feng, Jian Cao, Shihong Xu, Xin Jin, Jing Chen, Renji Zheng, Zhiyong Gao
Summary: This article emphasizes the importance of evaluating the performance of collectors in flotation and proposes a flotation index (FI) based on mineral recovery as an evaluation method. The FI quantifies the actual collecting ability and selectivity, filling the gaps of existing evaluation indices. It can be used to evaluate collector flotation performance for mineral mixtures and industrial ores.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Proceedings Paper
Engineering, Electrical & Electronic
Timothy J. Palinski, Bin Guan, Bronwyn H. Bradshaw-Hajek, Michael A. Lienhard, Craig Priest, Felix A. Miranda
Summary: This paper reports an optofluidic sensor for rapid detection of gas-phase analytes towards wearable colorimetric sensing. The sensor consists of a metal-insulator-metal thin-film structure integrated with a quartz micropillar array to improve the delivery of vapor analytes onto the sensing surface. Experimental results demonstrate that the micropillar array significantly reduces the sensor response time compared with conventional chamber experiments. The concentration-dependent response of the sensor confirms its potential for continuous, compact, and quantitative colorimetric analysis of volatile analytes in low-volume samples.
Article
Chemistry, Multidisciplinary
Timothy J. J. Palinski, Bin Guan, Bronwyn H. H. Bradshaw-Hajek, Michael A. A. Lienhard, Craig Priest, Felix A. Miranda
Summary: This paper presents a colorimetric sensing system for rapid detection of gas-phase analytes from flowing micro-volume fluid samples. The sensor platform combines an analyte-responsive metal-insulator-metal (MIM) thin-film structure with a large area quartz micropillar array, allowing precise alignment and separation of optical and fluidic structures. The sensor's response time is reduced from minutes to seconds, making it suitable for portable/wearable devices. The platform shows potential for continuous, compact, and quantitative colorimetric analysis of volatile analytes in low-volume samples.
