Article
Chemistry, Physical
Jotam Bergfreund, Pascal Bertsch, Peter Fischer
Summary: Protein adsorption at fluid interfaces is influenced by the hydrophobicity of the subphase, with hydrophobic substances accelerating adsorption speed while more polar oils slow it down. The stability of protein structures also plays a role in determining adsorption rates, with less stable globular proteins adsorbing more quickly. The correlation between oil polarity and induced surface pressure of proteins is a universal principle that can be used to predict protein unfolding based on protein-subphase interactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Federico Traldi, Pengfei Liu, Ines Albino, Lino Ferreira, Ali Zarbakhsh, Marina Resmini
Summary: A fundamental understanding of the interactions and behavior of nanoparticles with biological interfaces is crucial for their biomedical applications. The formation of a protein corona complex and its impact on the properties of nanomaterials can be analyzed using various analytical techniques. This study evaluated the interactions between acrylamide-based nanogels with different charges and abundant serum proteins, providing insights into the factors that influence the bio-nano interface and aiding the design of nanomaterials for drug delivery.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Julian Grundler, Kwangsoo Shin, Hee-Won Suh, Mingjiang Zhong, W. Mark Saltzman
Summary: This study establishes a straightforward method to precisely tailor the surface topography of PEGylated polymeric nanoparticles based on tuning the architecture of shape-persistent amphiphilic bottlebrush block copolymer (BBCP) building blocks. The research demonstrates that nanoparticle formation and surface topography can be controlled by systematically changing the structural parameters of BBCP architecture, and reveals that the surface topography significantly affects the performance of PEGylated nanoparticles.
Article
Chemistry, Physical
Jessie L. Webber, Graeme Gillies, Marta Krasowska, David A. Beattie
Summary: An oil-infused polyelectrolyte multilayer immersed in aqueous solution is used to mimic an oil-water interface for studying surfactant adsorption. The experiment involves characterizing the polyelectrolyte multilayer with atomic force microscopy, and replicating the results using profile analysis tensiometry. The results show that protein adsorbs strongly and irreversibly to the oil-water interface, and the surfactant molecules co-adsorb with the protein instead of displacing it.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Review
Polymer Science
Dylan M. Anstine, Coray M. Colina
Summary: Polymeric adsorbents have gained attention due to their tunable sorption properties, membrane structure, and cost consciousness. However, uptake of adsorbates can induce membrane structural rearrangement, affecting the performance metrics of polymeric membranes, with molecular simulation methods showing potential in predicting membrane properties.
POLYMER INTERNATIONAL
(2021)
Article
Chemistry, Physical
Malik Abdul Rub, Naved Azum, Dileep Kumar, Maha Moteb Alotaibi, Abdullah M. Asiri
Summary: This study investigates the impact of different media with fixed concentrations on the properties of PMT and BTC mixture. The results show that there is interaction between PMT and BTC, and the interaction is enhanced by increasing the mole fraction of BTC. The critical micelle concentrations of the mixture are influenced by the media, with TU having the greatest effect. In addition, FTIR spectroscopy reveals that the addition of other components affects the vibration frequencies of the pure components, indicating direct interaction among them.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Julian Traciak, Jacek Fal, Gawel Zyla
Summary: The paper introduces a low-cost method for building a tensiometer to measure surface tension between liquid and air. By using common devices and manufacturing techniques, the software and CAD models for self-building the tensiometer were provided, showcasing successful application in complex systems.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Thu Thi-Yen Le, Siam Hussain, Ruey-Yug Tsay, Boris A. Noskov, Alexander Akentiev, Shi-Yow Lin
Summary: This study demonstrates a more precise and accurate method for measuring the equilibrium surface tension (ST) of bovine serum albumin (BSA) in aqueous solutions. Regardless of the BSA concentration, the ST remains constant at the later stage. These results are further confirmed by a perturbation process. The findings indicate that the equilibrium ST of BSA solutions remains essentially unchanged over a wide range of BSA concentration.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Biochemistry & Molecular Biology
Tomas Riedel, Andres de los Santos Pereira, Johanka Taborska, Zuzana Riedelova, Ognen Pop-Georgievski, Pavel Majek, Klara Pecankova, Cesar Rodriguez-Emmenegger
Summary: Non-specific protein adsorption triggers deleterious events in biomaterial applications. This study reveals that the variability of fouling on poly(2-hydroxyethyl methacrylate) is due to complement system activation, which amplifies fouling via the alternative complement pathway.
MACROMOLECULAR BIOSCIENCE
(2022)
Article
Chemistry, Physical
Wen-Chi Tseng, Ruey-Yug Tsay, Thu Thi-Yen Le, Siam Hussain, Boris A. Noskov, Alexander Akentiev, Hsu-Hsiang Yeh, Shi-Yow Lin
Summary: A new approach for evaluating the dilational modulus of an adsorbed protein film was proposed in this study, which involved monitoring the relaxations of surface tension, surface area, and temperature of the solution. The dilational modulus was obtained by analyzing the interfacial perturbations during the adsorption process.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Mahdiye Ijavi, Robert W. Style, Leonidas Emmanouilidis, Anil Kumar, Sandro M. Meier, Alexandre L. Torzynski, Frederic H. T. Allain, Yves Barral, Michel O. Steinmetz, Eric R. Dufresne
Summary: This study demonstrates a classic method that can be effectively scaled down to measure the surface tension of liquid droplets based on droplet shape and density differences. The connection between droplet shape and surface tension relies on the density difference, which can be determined with the measurement of droplet sedimentation velocity in the same setup.
Article
Polymer Science
Milad Goodarzi, Gholamreza Pircheraghi, Hossein Ali Khonakdar, Volker Altstadt
Summary: This study focuses on using polymeric materials for capacitor applications and explores the control of dielectric properties of polystyrene/ethylene-alpha-octene copolymer blends by manipulating the surface polarity of graphene nanoplatelets. The results show that the addition of a low concentration of graphene nanoplatelets can significantly improve the dielectric constant and flexibility of the polymer blends, enhancing their suitability as alternatives for capacitor applications.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Robotics
Hong Zhu, Borui Xu, Yang Wang, Xiaoxia Pan, Zehua Qu, Yongfeng Mei
Summary: Hydrogels are exciting materials for robotics, with studies focusing on active hydrogels capable of autonomous locomotion on water for up to 3.5 hours. These active hydrogels are composed of hydrophobic and hydrophilic groups, achieving controlled movement on water through dynamic wetting processes and surface tension manipulation.
Article
Engineering, Chemical
C. Soto, N. Cicuttina, F. J. Carmona, M. de la Viuda, A. Tenaa, A. E. Lozano, A. Hernandez, L. Palacioa, P. Pradanos
Summary: This study investigates the CO2 and N2 adsorption of mixed matrix membranes to determine the fractional free volume (FFV). The findings reveal the pore size distribution and enable the calculation of FFV.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Energy & Fuels
Ting Chen, Huanhui Wang, Chaoyi Situ, Tianyou Ye, Haoran Huang, Weilong Lin, Lianyu Zhao, Ziyuan Wang, Jishi Zhao, Yan Li
Summary: A novel geminized cationic amphiphilic polymer,PAGB(n), was synthesized and utilized to desorb asphaltenes by exposing preadsorbed asphaltene layers to PAGB(n) aqueous solution with different concentrations. The desorption process was studied using quartz crystal microbalance with dissipation (QCM-D), atomic force microscopy (AFM) and contact angle (CA) measurements. The desorbed mass of asphaltenes increased from approximately 31.6 ng/cm² to 799.5 ng/cm² as the concentration of PAGB(n) increased from 0.5 times the critical aggregation concentration (CAC) to 10.0 times the CAC, with significant improvement observed at 5.0 times the CAC. A gradual peeling off process of asphaltenes displaced by PAGB(n) aggregates from the solid/liquid interface was speculated based on the desorbed mass, AFM images, and surface wettability. The self-aggregation behavior of PAGB(n) on the solid-liquid interface was further investigated using dynamic light scattering (DLS) and transmission electron microscopy (TEM). A network aggregate consisting of spherical multisize micelles was formed, and a removal mechanism of asphaltenes from solid surfaces was proposed, providing insight into heavy oil recovery improvement.
Article
Materials Science, Multidisciplinary
Bryce Dorin, Guangyu Zhu, Patrick Parkinson, Walter Perrie, Med Benyezzar, Patricia Scully
MATERIALS CHEMISTRY AND PHYSICS
(2016)
Article
Materials Science, Multidisciplinary
Bryce Dorin, Patrick Parkinson, Patricia Scully
JOURNAL OF MATERIALS CHEMISTRY C
(2017)
Article
Materials Science, Multidisciplinary
Bryce Dorin, Patrick Parkinson, Patricia Scully
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2018)
Article
Automation & Control Systems
Omar Costilla-Reyes, Patricia Scully, Krikor B. Ozanyan
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2018)
Article
Computer Science, Artificial Intelligence
Omar Costilla-Reyes, Ruben Vera-Rodriguez, Patricia Scully, Krikor B. Ozanyan
IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE
(2019)
Article
Chemistry, Analytical
Siti R. Makhsin, Nicholas J. Goddard, Ruchi Gupta, Peter Gardner, Patricia J. Scully
ANALYTICAL CHEMISTRY
(2020)
Article
Engineering, Electrical & Electronic
Omar Costilla-Reyes, Patricia Scully, Iracema Leroi, Krikor B. Ozanyan
Summary: The study investigated the impact of cognitively demanding tasks on patterns of human gait in healthy adults using a deep learning methodology, demonstrating its superior performance in classifying dual-tasks compared to traditional machine learning approaches. Additionally, the research showcased a novel approach to dual-task research based on data-driven learning methodology with stratified age groups.
IEEE SENSORS JOURNAL
(2021)
Article
Physics, Applied
Ratul Kumar Biswas, Nazar Farid, Bharat Bhushan Bhatt, Dipti Gupta, Gerard M. O'Connor, Patricia Scully
Summary: Microfabrication of polyimide (PI) was studied using a femtosecond laser with a wavelength of 1030 nm under two different process conditions. The low power-low scan speed regime was investigated for laser carbonization to produce piezoresistive laser induced graphene (LIG), while the high power-high scan speed regime was used for laser ablation. A two-dimensional (2D) LIG strain sensor was fabricated on a Kapton PI sheet using laser carbonization and transformed into a three-dimensional (3D) conformal sensor by cutting into a Kirigami design using laser ablation. This laser process enables the transformation of any 2D PI sheet into a 3D conformal sensor, which has potential applications in wearable sensors and health monitoring. The fabricated sensor was successfully used to monitor real-time tracking of bending and twisting knee movements.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Ratul Kumar Biswas, Peter McGlynn, Gerard M. O'Connor, Patricia Scully
Summary: The effect of wettability of PI surface on the crystallite size and electrical conductivity of LIG was investigated. The wettability of PI was enhanced by adjusting the scan speed of an Argon cold plasma pen. The increased wettability of PI surface reduced the activation energy of graphene nuclei diffusion, resulting in improved crystallinity and conductivity of LIG.
Article
Education & Educational Research
T. L. Rodgers, N. Cheema, S. Vasanth, A. Jamshed, A. Alfutimie, P. J. Scully
EUROPEAN JOURNAL OF ENGINEERING EDUCATION
(2020)
Article
Computer Science, Information Systems
Tahmina Zebin, Patricia J. Scully, Niels Peek, Alexander J. Casson, Krikor B. Ozanyan
Proceedings Paper
Engineering, Electrical & Electronic
Tahmina Zebin, Patricia J. Scully, Krikor B. Ozanyan
Proceedings Paper
Engineering, Electrical & Electronic
Siti R. Makhsin, P. Gardner, Nicholas J. Goddard, Patricia J. Scully
Proceedings Paper
Engineering, Electrical & Electronic
Omar Costilla-Reyes, Patricia Scully, Krikor B. Ozanyan
Article
Materials Science, Multidisciplinary
Ratul Kumar Biswas, Nazar Farid, Gerard O'Connor, Patricia Scully
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
