Article
Polymer Science
Rebecca T. Haber, Andrea R. Browning, Bayleigh R. Graves, William P. Davis, Jeffrey S. Wiggins
Summary: This study computationally predicted the melting temperature and melt properties of thermosetting monomers used in aerospace applications. The voids method and torsion/orientational order parameter analysis shed light on the relationship between molecular motion freedom and melting temperature/properties.
Article
Polymer Science
Burcu Kekevi, E. Hilal Mert
Summary: The interest in using bio-derived species for polymer synthesis has been growing over the past decade, with terpenes extracted from tree sap and citrus fruit essential oils playing a significant role. Among these, beta-myrcene, a promising linear conjugated diene, is of particular interest to researchers. However, challenges exist in the free radical copolymerization of beta-myrcene due to competing Diels-Alder reactions with electron-deficient vinyl monomers. In this study, polyHIPEs were successfully synthesized from high internal phase emulsions of beta-myrcene, with stability demonstrated in resulting materials but varying success in achieving crosslinking. Hypercrosslinking with the Friedel-Crafts alkylation method significantly increased the specific surface area of the polyHIPEs.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Chemistry, Physical
Trevor Franklin, Rong Yang
Summary: Non-spherical polymer nanoparticles with tunable morphology have great potential in drug delivery, sensing, and soft robotics. However, their development is currently limited by the laborious synthesis and limited control over particle morphology. To address this issue, a facile synthesis technique called condensed droplet polymerization (CDP) is demonstrated to obtain non-spherical particles with different morphologies. A unique in situ digital microscopy is employed to observe the evolution of particle morphology in real time during monomer evaporation. By investigating the effect of fundamental properties, including monomer propagation constant and polymer glass transition temperature, on particle morphology, a framework for understanding the fundamental mechanisms of particle morphology formation is established, leading to improved control over polymer morphology in CDP with various practical applications.
CHEMISTRY OF MATERIALS
(2023)
Article
Polymer Science
Alexandros E. Alexakis, Thayanithi Ayyachi, Maryam Mousa, Peter Olsen, Eva Malmstrom
Summary: To meet the increasing demand for biobased materials, lignin-derived ferulic acid was used to prepare functional monomers for radical polymerizations. These monomers were polymerized to produce homo- and copolymers with a wide range of thermal properties, showing potential in thermoplastic applications. Additionally, monomers derived from ferulic acid were crosslinked to produce thermosets with different crosslinking densities for thermosetting applications.
Article
Chemistry, Applied
Linqiao Zeng, Jiseon Lee, Yeon-Ji Jo, Mi-Jung Choi
Summary: In this study, the effects of emulsion droplet size on the physicochemical and rheological properties of emulsion-gelatin composite gels were investigated. Micro- and nano-sized emulsions were prepared by homogenizing gelatin or lecithin solutions (1-4%) with canola oil using high-speed and/or high-pressure homogenizers. The results showed that increasing the concentration of gelatin increased the gel strength of the emulsion-gelatin composite gels regardless of the droplet size of the emulsion. However, gels with nano-sized emulsions had significantly higher gel strength, G', and water-holding capacity compared to gels with micro-sized emulsions, except for lecithin. The size of the emulsion droplets significantly affected the physicochemical properties of the gels, except for lecithin, and this was attributed to the formation of a higher number of junctions of gelatin random coils during cold-set gelation due to the high specific surface area of nano-sized droplets.
FOOD HYDROCOLLOIDS
(2023)
Article
Engineering, Chemical
F. Joseph Schork
Summary: The study reveals that higher molecular weight acrylates and methacrylates are limited by monomer transport in emulsion polymerization.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Food Science & Technology
Shiyu Zhen, Sheng Geng, Hanjun Ma, Benguo Liu
Summary: The non-covalent interaction between alpha-lactalbumin and dihydromyricetin was studied, and their complex showed potential application as an emulsifier in nano-emulsion. The complex formation was driven by hydrogen bonding and van der Waals force, causing changes in the microenvironment of alpha-lactalbumin. The complex exhibited improved oil/water interfacial tension reduction ability and radical scavenging ability compared to alpha-lactalbumin alone, and the stability and protective effect of nano-emulsion developed by the complex were positively correlated with DMY concentration in the complex.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Snehal R. Jadhav, Gary Bryant, Jitendra P. Mata, Daniel S. Eldridge, Enzo A. Palombo, Ian H. Harding, Rohan M. Shah
Summary: This study investigated the micellar behavior of Cremophor EL at various concentrations and temperatures, revealing that the thickness of the micelle shell increased with rising temperature. The findings contribute to understanding how drugs interact with lipid excipients and the behavior of drug-excipient mixtures throughout the manufacturing, storage, and administration processes.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Polymer Science
Hanxuan Song, Yan Ye, Zhen Zhang, Shuang Wang, Tong Zhou, Jixiang Guo, Shiling Zhang
Summary: In this study, a cleaning fluid system was prepared using nano-emulsions with a particle size of about 14 nm. The system exhibited enhanced stability through network structure in the fiber-reinforced system and adjustable density for ultra-deep wells. The effective viscosity of the nano-cleaning fluid reached 11 mPa · s and remained stable for up to 8 h. An indoor evaluation instrument was independently developed to assess the performance of the nano-cleaning fluid under simulated downhole temperature and pressure conditions. The evaluation results showed that the viscosity and shear value of the nano-cleaning fluid system were greatly influenced by the fiber content, and the cleaning efficiency was greatly affected by the concentration of the nano-emulsion.
Article
Biochemistry & Molecular Biology
Milena J. Szafraniec
Summary: This study investigated the binding of two structurally similar derivatives of chlorophyll a, chlorophyllide a (Chlide) and zinc-pheophorbide a (Zn-Pheide), to human serum albumin (HSA). The results showed that both compounds formed complexes with HSA, with the primary binding site being the heme site. Hydrophobic interactions and hydrogen bonding were found to be the main driving forces for the interactions between the derivatives and HSA.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Polymer Science
Olivia R. Monaghan, Stephen T. Skowron, Jonathan C. Moore, Maria Pin-No, Kristoffer Kortsen, Rachel L. Atkinson, Eduards Krumins, Joachim C. Lentz, Fabricio Machado, Zeynep Onat, Adam Brookfield, David Collison, Andrei N. Khlobystov, Davide De Focatiis, Derek J. Irvine, Vincenzo Taresco, Robert A. Stockman, Steven M. Howdle
Summary: This study reports the discovery and analysis of a self-crosslinking sustainable terpene derived monomer, alpha-pinene methacrylate (alpha PMA), and investigates its behavior through computational and experimental methods. The monomer undergoes self-crosslinking during free radical polymerization by chain transfer through hydrogen abstraction from a pendant group. This self-crosslinking process can be exploited to generate renewable high internal phase emulsions.
Article
Chemistry, Organic
Anna Notti, Ilenia Pisagatti, Francesco Nastasi, Salvatore Patane, Melchiorre F. Parisi, Giuseppe Gattuso
Summary: A novel bis-pillar[5]arene dicarboxylic acid self-assembles in the presence of 1,12-diaminododecane to form overall neutral, internally ion-paired supramolecular polymers. Their aggregation, binding mode, and morphology can be adjusted by external stimuli such as solvent polarity, concentration, and base treatment.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Pieter Samyn, Vibhore K. Rastogi
Summary: This study proposes a method for emulsification of carnauba wax and compares it with the encapsulation and emulsification of paraffin wax. Analysis with Raman spectroscopy and infrared spectroscopy indicates that carnauba wax shows better compatibility with the formation of organic nanoparticles compared to paraffin wax. The nanoparticles with encapsulated carnauba wax also exhibit higher thermal and mechanical stability.
Article
Chemistry, Multidisciplinary
Simonetta Muccifora, Lucia Giorgetti, Maddalena Corsini, Giuseppe Di Florio, Lorenza Bellani
Summary: Contamination by plastics is a major cause of terrestrial pollution. This study investigated the effects of nano and submicron-sized polystyrene particles on chicory plants. The results showed that particle size and concentration had an impact on germination and seedling development, but had a positive effect on photosynthetic pigments and antioxidant activity. Additionally, smaller particles were found to be more easily internalized and transported within plant tissues.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Chemistry, Physical
Xinyi Shen, Yue Zhang, Duanda Wang, Yanling Huang, Yongyang Song, Shutao Wang
Summary: Polymer-based magnetic particles have been widely used for the separation of biological samples. A new strategy of mediator monomer regulated emulsion interfacial polymerization is presented, which allows effective loading of magnetic nanoparticles and efficient nucleic acid separation. This strategy offers an effective and versatile way for the synthesis of nanoFMPs toward efficient separation in various fields.
Article
Nanoscience & Nanotechnology
Iryna Sulym, Malgorzata Wisniewska, Liudmyla Storozhuk, Konrad Terpilowski, Dariusz Sternik, Mykola Borysenko, Anna Derylo-Marczewska
Summary: A series of highly dispersed nanocomposites were synthesized using a liquid-phase method, resulting in amorphous particles with a sphere-like morphology of uniform size and shape post-calcination at different ratios. The agglomerated particles of nanocomposites in the aqueous medium ranged from 200 to 850 nm, showing good stability.
APPLIED NANOSCIENCE
(2022)
Article
Chemistry, Physical
Izabela Swietlicka, Ewa Tomaszewska, Siemowit Muszynski, Michal Swietlicki, Tomasz Skrzypek, Wojciech Grudzinski, Wieslaw Gruszecki, Daniel Kaminski, Monika Hulas-Stasiak, Marta Arczewska
Summary: This study examines the development of dental enamel, focusing on its surface morphology, chemical composition, and structural features in incisor samples of spiny mice. The research findings provide a comparative material for environmental, nutritional, and pharmaceutical studies.
Article
Environmental Sciences
Jan Malecki, Konrad Terpilowski, Maciej Nastaj, Bartosz G. Solowiej
Summary: The main objective of this study was to investigate the possibility of using a combination of vegetable proteins and liquid syrups in high-protein bars. The combinations of proteins and syrups had positive effects on the hardness reduction of the bars. Microstructure and contact angle showed a large influence on the features of the manufactured products. The combination of proteins and syrups significantly reduced the sugar content of the product, and certain combinations showed a high potential for use in this type of products.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Chemistry, Physical
Ewelina Kuzmicz-Miroslaw, Marcin Kusmierz, Konrad Terpilowski, Mateusz Smietana, Mariusz Barczak, Magdalena Staniszewska
Summary: This study thoroughly investigated the effect of three popular surface activation methods on the titanium oxide surface to identify the most effective protocol for enhancing hydrophilicity. The results showed that all three methods resulted in an enhanced hydrophilic surface, as evidenced by reduced contact angle values. The chemical and morphological features responsible for the increased hydrophilicity were further examined using atomic force microscopy and X-ray photoelectron spectroscopy.
Article
Chemistry, Physical
Karolina Beer-Lech, Anna Skic, Kamil Skic, Zbigniew Stropek, Marta Arczewska
Summary: This study analyzed the microstructure, barrier properties, and mechanical resistance of psyllium husk-modified thermoplastic starch films. The addition of psyllium husk improved the gelatinization of starch and enhanced the barrier properties and mechanical resistance of the films.
Article
Biochemistry & Molecular Biology
Agnieszka Drozdz, Adrianna Slawinska-Brych, Dominika Kubera, Magdalena Kimsa-Dudek, Joanna Magdalena Gola, Jolanta Adamska, Celina Kruszniewska-Rajs, Arkadiusz Matwijczuk, Dariusz Karcz, Wojciech Dabrowski, Andrzej Stepulak, Mariusz Gagos
Summary: The study demonstrated the synergistic effect of C1 and NTBD with AmB, showing high antifungal potential and minimal toxicity against normal human cells. In vitro experiments showed that these compounds had low cytotoxicity on human renal proximal tubule epithelial cells and exhibited strong antioxidant activity when combined with AmB. These results suggest the potential use of these compounds in the treatment of fungal infections.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Iwona Budziak-Wieczorek, Daniel Kaminski, Alicja Skrzypek, Anna Ciolek, Tomasz Skrzypek, Ewa Janik-Zabrotowicz, Marta Arczewska
Summary: In this study, the spectroscopic and structural features of natural chalcones were investigated to prove the presence of the aggregation-induced emission enhancement effect. Additionally, the compounds were tested for their antioxidant and potential anti-neurodegenerative activities, with licochalcone A showing the most desirable emission properties and the most effective antioxidant and neuroprotective properties.
Article
Plant Sciences
Monika Zubik-Duda, Rafal Luchowski, Magdalena Maksim, Artur Nosalewicz, Piotr Zglobicki, Agnieszka Katarzyna Banas, Wojciech Grudzinski, Wieslaw I. Gruszecki
Summary: The safe and smooth functioning of photosynthesis in plants is ensured by various regulatory mechanisms, including chloroplast movements and quenching of electronic excitations. A study using fluorescence lifetime imaging microscopy of Arabidopsis thaliana leaves found that these mechanisms operate over a wide range of light intensities. Impaired chloroplast movements do not affect photoprotection at the molecular level, indicating the one-way information flow from the photosynthetic apparatus to the cellular level. The presence of zeaxanthin is necessary and sufficient for the full development of photoprotective quenching in plants.
Article
Food Science & Technology
Marta Tomczynska-Mleko, Konrad Terpilowski, Salvador Perez-Huertas, Viktoria Sapiga, Galina Polischuk, Bartosz Solowiej, Maciej Nastaj, Marta Wesolowska-Trojanowska, Stanislaw Mleko
Summary: The study investigated the gelation process of binary mixes of pumpkin-seed and egg-white proteins. Substituting pumpkin-seed proteins with egg-white proteins improved the rheological properties of the obtained gels. Gels with a higher egg-white protein content were more elastic and resistant to breaking, while a higher concentration of pumpkin-seed protein changed the gel microstructure to a rougher and more particulate one.
Article
Chemistry, Physical
Lucyna Holysz, Paulina Rek, Milosz Huber, Konrad Terpilowski
Summary: In this study, the quality of limestone and dolomite aggregates was evaluated through methylene blue adsorption experiments. The results showed good repeatability using both the methylene blue stain test and the adsorption experiment. The measured specific surface areas differed between N2 adsorption and methylene blue adsorption, which can be attributed to the presence of quartz and clay minerals in the aggregates.
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
(2023)
Article
Chemistry, Physical
Alla Dyachenko, Konrad Terpilowski, Olena Ischenko, Iryna Sulym, Dariusz Sternik, Eugen Pakhlov, Mykola Borysenko, Lyudmila Storozhuk, Lyudmila Andriyko, Olena Goncharuk
Summary: A series of mixed oxides were synthesized by depositing the guest phase on highly dispersed oxide matrices. The composition and structure of the oxide matrices and the deposited guest phase were found to have a significant influence on the morphology of the resulting composites.
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
(2023)
Editorial Material
Chemistry, Applied
Kash Mittal, Konrad Terpilowski, Brian Grady, Ronald Marquez
JOURNAL OF SURFACTANTS AND DETERGENTS
(2023)
Article
Chemistry, Applied
Emil Chibowski, Konrad Terpilowski, Lucyna Holysz, Aleksandra Szczes
Summary: The effects of magnetic field treatment on water or solution are still of interest, but there have been relatively few studies on pure surfactant solutions. This study investigated the effects of magnetic field treatment on pure aqueous surfactant solutions, including cationic, anionic, and nonionic surfactants. The results showed that both uniform and gradient magnetic fields can cause changes in surface tension, with the effects being stronger in the gradient field. The specific changes in surface tension depend on the type and concentration of surfactant.
JOURNAL OF SURFACTANTS AND DETERGENTS
(2023)
Article
Biochemistry & Molecular Biology
Iwona Budziak-Wieczorek, Vladimir Masan, Klaudia Rzad, Bozena Gladyszewska, Dariusz Karcz, Patrik Burg, Alice Cizkova, Mariusz Gagos, Arkadiusz Matwijczuk
Summary: The FTIR-ATR method coupled with multivariate analysis was used to characterize different varieties of wine grown in the Moravia region of Czech Republic. The results showed clear separation between the wine samples and high classification rates. FTIR spectroscopy studies combined with chemometrics can provide rapid analysis of multiple wine components with minimal sample preparation, contributing to the improvement of wine quality.
Article
Chemistry, Physical
Konrad Terpilowski, Emil Chibowski
Summary: This research focuses on the preparation of chitosan films and the effect of plasma treatment on their surface properties. It was found that plasma activation can increase the polarity of chitosan films.
COLLOIDS AND INTERFACES
(2022)
