Review
Biochemistry & Molecular Biology
Marlene Costa, Fatima Paiva-Martins, Sonia Losada-Barreiro, Carlos Bravo-Diaz
Summary: Bulk phase chemistry is not a suitable approximation to interpret chemical reactivity in compartmentalized systems. Understanding the effects of multiphasic systems on chemical reactivity is important, especially in emulsions where determining the distributions of reactive components is difficult. Developing models to interpret chemical reactivity correctly is a challenge.
Article
Biochemistry & Molecular Biology
Lucia Fernandez-Ventoso, Artai Toba-Perez, Sonia Losada-Barreiro, Fatima Paiva-Martins, Carlos Bravo-Diaz
Summary: In this paper, the pseudophase kinetic model (PKM) is further tested for evaluating the distributions of antioxidants in intact lipid-based emulsions and providing insights into their chemical reactivity. The results demonstrate that the PKM is an effective non-destructive tool for determining antioxidant concentrations, assessing the effects of various factors, and separating the medium and concentration effects.
Review
Chemistry, Physical
Zhiqiang Zou, Lingmei Dai, Dehua Liu, Wei Du
Summary: Vitamin E is easily oxidized, limiting its applications, but its ester derivatives show improved stability and antioxidant capacity with new biological functions. Enzymatic synthesis of these derivatives is gaining attention for its environmental friendliness, high catalytic efficiency, and selectivity. Recent studies focus on lipase-mediated preparation of vitamin E ester derivatives, highlighting factors influencing the enzymatic acylation process and discussing the potential of lipase-catalyzed synthesis.
Article
Chemistry, Applied
Yanyan Zhou, Xiang Luo, Zhixin Wang, David Julian McClements, Wenna Huang, Hongliang Fu, Kewu Zhu
Summary: In this study, a novel emulsifier (PG20-VES) was synthesized by attaching hydrophilic twenty-polyglycerol (PG20) to hydrophobic vitamin E succinate (VES). Compared with the widely used commercial emulsifier TPGS, PG20-VES showed a lower critical micelle concentration, lower interfacial tension, stronger emulsifying capacity, and similar antioxidant property. In vitro digestion study demonstrated that lipid droplets coated by PG20-VES were digested under simulated small intestine conditions. This study highlights the potential of PG20-VES as an efficient antioxidant emulsifier for bioactive delivery systems in various industries.
Article
Biophysics
Ewa Olbinska, Agnieszka Trela-Makowej, Weronika Larysz, Aleksandra Orzechowska, Renata Szymanska
Summary: This study investigated the effect of incorporating alpha-tocopherol into different carriers on the oxidative stability of oil in water emulsion. Results showed that alpha-tocopherol in liposomes and niosomes contributed to lower oxidation products compared to micelles. Additionally, the lipid peroxides remained stable in emulsions without alpha-tocopherol carriers.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2023)
Article
Biochemistry & Molecular Biology
Masaki Tanito
Summary: Vitamin E may potentially prevent or ameliorate cataracts and glaucoma by reducing oxidative stress, with some studies showing positive effects in humans. However, the effects of vitamin E on the development and progression of these eye diseases are inconsistent and require further randomized control studies for validation.
FREE RADICAL BIOLOGY AND MEDICINE
(2021)
Article
Engineering, Chemical
Fang Xie, Yuan Fang, Xin Liu, Xin Cong, Yangchao Luo, Jiaojiao Zhou, Zia-ud Din, Shuiyuan Cheng, Jie Cai
Summary: This study successfully prepared O/W/O and W/O/W emulsions using a simple method. These emulsions have important applications in healthy food development, as they can efficiently load selenium-enriched peptides and vitamin E, and exhibit good antioxidant properties. Additionally, they effectively mask the odor of selenium-enriched peptides.
JOURNAL OF FOOD ENGINEERING
(2024)
Article
Food Science & Technology
Ce Ni, Wenhua Zhou, Mengyuan Yu, Xinyang Li, Jian Li, Yingchun Cui, Wenpeng Cui
Summary: Vitamin E therapy has a positive effect on the retention of antioxidant compounds in the bodies of dialysis patients, leading to an increase in the levels of blood antioxidant markers.
MOLECULAR NUTRITION & FOOD RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
A. Tsikritea, K. Park, P. Bertier, J. Loreau, T. P. Softley, B. R. Heazlewood
Summary: This study examines charge transfer reactions between two isotopologues of ammonia, NH3 and ND3, and two rare gas ions, Kr+ and Ar+, revealing an inverse kinetic isotope effect and limitations of capture theory models. The reactant and product potential energy surfaces constructed from high-level ab initio calculations show no energetically-accessible crossing points. Through a one-dimensional quantum-mechanical model, a possible explanation for the presence of inverse kinetic isotope effects in these systems is proposed.
Article
Food Science & Technology
Andreia Ribeiro, Raquel F. S. Goncalves, Ana C. Pinheiro, Yaidelin A. Manrique, Maria Filomena Barreiro, Jose Carlos B. Lopes, Madalena M. Dias
Summary: In this study, vitamin E-loaded Pickering emulsions stabilized by nano-hydroxyapatite (n-HAp) were produced with different droplet sizes using a static mixer technique. The emulsion with the highest vitamin E bioaccessibility was used to fortify gelatine and milk, resulting in increased bioaccessibility, highlighting the potential for vitamin E encapsulation in fortified foods development.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Health Care Sciences & Services
Shinta Fitri Boesoirie, Wijana Hasansulama, Lina Lasminingrum, Arif Tria Novianto, Vesara Ardhe Gatera, Nur Akbar Aroeman, Thaufiq Siddiq Boesoirie
Summary: This study found that vitamin A and E levels do not have a significant impact on the occurrence of CSOM with or without cholesteatoma.
JOURNAL OF MULTIDISCIPLINARY HEALTHCARE
(2023)
Review
Dermatology
Enzo Berardesca, Norma Cameli
Summary: Vitamin E is a powerful antioxidant that protects against oxidative damage and neurodegenerative diseases. Supplementation of vitamin E can be beneficial in certain cases and chronic diseases. While some studies suggest a positive role of vitamin E in atopic dermatitis and psoriasis, further research is needed to confirm its efficacy.
DERMATOLOGIC THERAPY
(2021)
Review
Biochemistry & Molecular Biology
Jianxin Xiao, Muhammad Zahoor Khan, Yulin Ma, Gibson Maswayi Alugongo, Jiaying Ma, Tianyu Chen, Adnan Khan, Zhijun Cao
Summary: This article discusses the potential impact of oxidative stress on periparturient dairy cattle during the production period, and explores the use of external antioxidant supplementation such as selenium and vitamin E to restore their normal health status.
Article
Agriculture, Multidisciplinary
Boris Rabkin, Oren Tirosh, Joseph Kanner
Summary: The stomach acts as a bioreactor and plays a crucial role in biochemical reactions that impact human health. The oxidation of meat lipids in the stomach generates malondialdehyde (MDA), which is then absorbed into the bloodstream and modifies low-density lipoprotein (LDL) to MDA-LDL. The study found that vitamin E exhibits strong antioxidant activity against meat lipid oxidation in the stomach, especially at pH 3.0. The antioxidant activity of vitamin E at pH 3.0 is 20 times higher than that of catechin. Additionally, when combined with metmyoglobin (MbFe(+3)), vitamin E acts synergistically as a peroxidase/antioxidant couple, surpassing the antioxidant effect achieved by MbFe(+3)/catechin 150-fold. The continuous addition of low concentrations of vitamin E, catechin, and vitamin C helps maintain the meat's antioxidant activity, preventing lipid oxidation, reactive aldehyde generation, and loss of vitamin E.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Review
Biochemistry & Molecular Biology
Francesco Galli, Mario Bonomini, Desiree Bartolini, Linda Zatini, Gianpaolo Reboldi, Giada Marcantonini, Giorgio Gentile, Vittorio Sirolli, Natalia Di Pietro
Summary: Vitamin E is an essential nutrient and antioxidant that plays a role in protecting tissues and regulating gene expression and lipid metabolism. Chronic kidney disease can affect the metabolism and function of vitamin E, but vitamin E therapy shows promising results in preventing cardiovascular disease and complications related to immune and hematological processes.
Review
Food Science & Technology
Carlos Bravo-Diaz
Summary: This review provides an overview of the kinetic approaches used in controlling the oxidative stability of edible oil-in-water emulsions, with a focus on the role of antioxidants and the kinetics of the inhibition reaction. The application of physical-organic chemistry methods, such as pseudophase models, allows for the investigation of antioxidant partitioning and the understanding of the role of interfaces, opening new possibilities for designing tailored antioxidants and optimizing their efficiency.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
Article
Biochemistry & Molecular Biology
Marlene Costa, Sonia Losada-Barreiro, Antonio Vicente, Carlos Bravo-Diaz, Fatima Paiva-Martins
Summary: Selecting effective antioxidants is challenging due to their dependency on concentration and location at the reaction site. This study analyzes the effects of surfactant concentration, droplet size, and oil to water ratio on the effective interfacial concentration of antioxidants in emulsions and nanoemulsions. The results show that despite high radical scavenging capacity, the investigated antioxidants do not effectively inhibit lipid oxidation, potentially due to their relatively low interfacial concentrations.
Article
Biochemistry & Molecular Biology
Lucia Fernandez-Ventoso, Artai Toba-Perez, Sonia Losada-Barreiro, Fatima Paiva-Martins, Carlos Bravo-Diaz
Summary: In this paper, the pseudophase kinetic model (PKM) is further tested for evaluating the distributions of antioxidants in intact lipid-based emulsions and providing insights into their chemical reactivity. The results demonstrate that the PKM is an effective non-destructive tool for determining antioxidant concentrations, assessing the effects of various factors, and separating the medium and concentration effects.
Review
Biochemistry & Molecular Biology
Sonia Losada-Barreiro, Zerrin Sezgin-Bayindir, Fatima Paiva-Martins, Carlos Bravo-Diaz
Summary: Natural antioxidants sourced from fruits, vegetables, meats, eggs, and fish are essential for protecting cells, reducing food loss, improving health, and promoting sustainability in food and pharmaceutical systems. Nanotechnology-based formulations show promise in enhancing the pharmacological action and bioavailability of antioxidants, addressing the challenge of poor bioavailability in clinical applications.
Review
Biochemistry & Molecular Biology
Sonia Losada-Barreiro, Fatima Paiva-Martins, Carlos Bravo-Diaz
Summary: Recently, there has been great interest in the partitioning of antioxidants in oil-water two-phase systems due to their potential in downstream biomolecule processing and health benefits. The partition constant values between water and organic solvents are closely related to important biological and pharmaceutical properties. In this review, the relevant equations for describing the partitioning of antioxidants and the methods for determining their partition constants in edible oils are discussed. The effects of acidity and temperature on their distributions are also examined.
Article
Biochemistry & Molecular Biology
Tamara Martinez-Senra, Sonia Losada-Barreiro, Carlos Bravo-Diaz
Summary: Charged interfaces can significantly impact chemical reactions, particularly through changes in interfacial acidity and the ionization status of antioxidants. In this study, different types of surfactants and their mixtures were used to prepare emulsions, and the effects of charged interfaces on the oxidative stability of the emulsions were analyzed. The results showed a strong correlation between the relative oxidative stability and the effective interfacial concentrations of the antioxidant. This highlights the importance of considering the effective interfacial concentrations of antioxidants in emulsions when evaluating their efficiency.
Article
Biochemistry & Molecular Biology
Tamara Martinez-Senra, Sonia Losada-Barreiro, Jose M. Hermida-Ramon, Ana M. Grana, Carlos Bravo-Diaz
Summary: This study integrates theory and experiments to provide a detailed description of the location and orientation of antioxidants in olive-oil-in-water nanoemulsions. The results show that the majority of the antioxidant is located in the interfacial region, making it effective in inhibiting lipid oxidation. The hybrid approach of experiments and simulations provides a useful pathway to design functionalized emulsions to minimize lipid oxidation.
Review
Chemistry, Medicinal
Zerrin Sezgin-Bayindir, Sonia Losada-Barreiro, Sofia Fernandez-Bravo, Carlos Bravo-Diaz
Summary: Cancer is a major cause of death worldwide, and current treatments have limitations. Antioxidants have potential therapeutic properties, but their clinical efficiency against cancer is limited. In this review, we discuss recent advances in potential delivery systems for antioxidant therapy in cancer. We also explore strategies to enhance the solubility of poorly water-soluble drugs, such as lipid-based, polymeric, and inorganic formulations. Additionally, we examine the use of cyclodextrins, micro- and nanoemulsions, and smart liposomes for improved drug delivery and release.
Article
Biochemistry & Molecular Biology
Josefa Freiria-Gandara, Tamara Martinez-Senra, Carlos Bravo-Diaz
Summary: The efficiency and distribution of HT and its hydrophobic derivatives in fish oil-in-water nanoemulsions were investigated. The results showed that the efficiency of the antioxidants is related to their hydrophobicity and is influenced by the surfactant concentration and oil-to-water ratio.
Article
Physics, Fluids & Plasmas
David Cabaleiro, Sonia Losada-Barreiro, Filippo Agresti, Carolina Hermida-Merino, Laura Fedele, Luis Lugo, Simona Barison, Manuel M. Pineiro
Summary: This study focuses on preparing and characterizing phase change material nanoemulsions as thermal fluids with latent functionality. The results show that the formulated nanoemulsions have good stability and thermal reliability, effectively reducing subcooling and enhancing energy storage capacity.
Article
Chemistry, Physical
Panpan Zhang, Xu Wang, Yangyang Yang, Haifeng Yang, Chunsheng Lu, Mingru Su, Yu Zhou, Aichun Dou, Xiaowei Li, Xiaochuan Hou, Yunjian Liu
Summary: In this study, the influence of transition metal doping on the electronic and mechanical properties and electrochemical performance of 2HMoS2/NC was investigated using Cobalt (Co) as an example. Co doping was found to effectively improve the electronic conductivity and active site areas of 2H-MoS2/NC at different positions, optimizing the adsorption and diffusion capability of potassium ions. Furthermore, the study revealed the optimal roles of different types of nitrogen atoms in kinetic adsorption, diffusion, and interfacial stability of potassium ions. These findings provide guidance for the experimental design of high rate 2H-MoS2/NC electrode materials and the optimal design of other functional composite materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zeeshan Ajmal, Mahmood Ul Haq, Shahid Zaman, M. K. Al-Muhanna, Anuj Kumar, Mohammed M. Fadhali, Siwar Ben Hadj Hassine, Muhammas Qasim, K. F. Alshammari, Ghulam Abbas Ashraf, Abdul Qadeer, Adil Murtaza, Sulaiman Al-Sulaimi, Huaqiang Zeng
Summary: This study presents a novel heterojunction structure (SrTiO3/CN-TAL10.0) for enhanced photocatalytic water splitting (PWS). The incorporation of thiophenedicarboxaldehyde (TAL) through copolymerization significantly improves the photocatalytic activity of carbon nitride (CN) while maintaining its photostability performance. The optimized composition allows efficient isolation of photoinduced charge carriers and enhanced charge transport, resulting in a remarkable increase in overall photocatalytic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Angela Arnosa-Prieto, Patricia Diaz-Rodriguez, Manuel A. Gonzalez-Gomez, Pelayo Garcia-Acevedo, Lisandra de Castro-Alves, Yolanda Pineiro, Jose Rivas
Summary: Macrophages can exhibit different phenotypes depending on the microenvironment and the characteristics of magnetic iron oxide nanoparticles (MNPs). This study demonstrates that the concentration and morphology of MNPs can influence the polarization of macrophages. The findings have implications for therapeutics targeting tissue regeneration and tumor progression.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yu Fang, Cheng-Ye Zhu, Hao-Cheng Yang, Chao Zhang, Zhi-Kang Xu
Summary: This study demonstrates the advantages of vacuum-assisted interfacial polymerization (VAIP) in fabricating polyimide nanofiltration membranes. By using vacuum filtration, aqueous solutions of PIP can be evenly distributed on different microfiltration substrates, leading to the fabrication of uniform and ultra-thin polyamide layers with excellent performance. The membranes exhibit high rejection rates and water permeance, as well as satisfactory long-term stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Isaac J. Gresham, Edwin C. Johnson, Hayden Robertson, Joshua D. Willott, Grant B. Webber, Erica J. Wanless, Andrew R. J. Nelson, Stuart W. Prescott
Summary: Understanding the interactions between polymers and surfactants is crucial for optimizing commercial systems. This study tested the behavior of polymer-surfactant systems, revealing that they do not behave like polyelectrolytes in the presence of salt. Additionally, the structure of polymer-surfactant complexes under confinement differs from that of polyelectrolytes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yunxiao Xie, Cui Liu, Jie Zhang, Yan Li, Bin Li, Shilin Liu
Summary: This study aimed to improve the microstructure and rheological properties of W/W Pickering emulsions by crosslinking sodium alginate at the water-water interface, thereby enhancing the activity of encapsulated probiotics in simulated gastrointestinal digestion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Sang Ho Lee, Yige Sun, Patrick S. Grant
Summary: This research developed an effective approach to enhance the charging rates of lithium ion batteries (LIBs) by strategically incorporating carbon nanotube (CNT) conductivity boosters into Li4Ti5O12 (LTO) electrodes. Multi-layer architectures comprising CNT-rich and CNT-free LTO electrode layers were manufactured using a layer-by-layer spray coating method to promote charge transfer kinetics of high mass loading electrodes. The best performing multi-layer was paired with a spray-coated LiFePO4 (LFP) positive electrode, resulting in attractive power performance that outperformed conventional LTO || LFP combinations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jingwei Liang, Shaobin Li, Fengbo Li, Li Zhang, Yufeng Jiang, Huiyuan Ma, Kun Cheng, Liang Qing
Summary: A molybdenum-regulated self-supporting electrode material with rich vacancy defects has been successfully synthesized and shows exceptional catalytic activities and stability for electrocatalytic overall water splitting. This study provides a new perspective for the design and synthesis of non-precious metal bifunctional electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jonas Blahnik, Jennifer Schuster, Rainer Mueller, Eva Mueller, Werner Kunz
Summary: This study investigates the relationship between the morphology of PMMA monopolymers and PMMA-PHEMA copolymers with the expected nature of surfactant-free microemulsions (SFMEs) before polymerization. It is found that previously mesostructured, surfactant-free mixtures can produce porous polymers of different morphologies, while unstructured, oil-rich regions lead to solid, transparent polymers without nanostructured morphologies. Additionally, a surfactant-based reference system shows similar phase behavior and polymer morphologies as the comparable surfactant-free system, indicating the importance of the hydrotropic behavior of HEMA in this system.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zheng-Fen Pu, Wen-Zhi She, Rong Sheng Li, Qiu-Lin Wen, Bi-Chao Wu, Chun-Hua Li, Jian Ling, Qiue Cao
Summary: This study synthesized two framework-isomeric covalent organic frameworks (COFs) and discovered that the light scattering signal of COFs can be used for the analytical detection of lead ions. By controlling synthesis conditions and introducing regulators, the morphology of COFs could be controlled and framework-isomeric COFs could be precisely synthesized.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yuchen Weng, Ying Hong, Jingyu Deng, Sicheng Cao, Li-Juan Fan
Summary: This paper reports the preparation of dynamic color-changing fluorescent polymer nanoparticles (PNPs) by constructing a fluorescence resonance energy transfer (FRET) pair. The PNPs show excellent anti-counterfeiting effects and reproducibility. The study demonstrates a promising encryption strategy that can achieve multiple outputs with simple operation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Guodong Liu, Zijian Wang, Jianing Wang, Hanbin Liu, Zhijian Li
Summary: This study investigates the combination of multicolor switchable polyaniline (PANI) electrode and 1-methyl-4,4'-bipyridyl iodide (MBI), which demonstrates superior optical properties in visible and near-infrared light modulation, as well as excellent electrochemical performances. This combination can be used to develop novel electrochromic devices for applications in smart packaging, smart labels, and flexible smart windows.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Huying Yan, Yang Guo, Xingzhi Bai, Jiawei Qi, Haipeng Lu
Summary: By modifying Ti3C2Tx through heterogeneous interface engineering, optimized impedance matching is achieved, leading to enhanced electromagnetic wave absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Kehu Zhang, Yang Zhou, Silvia Moreno, Simona Schwarz, Susanne Boye, Brigitte Voit, Dietmar Appelhans
Summary: This article presents an advanced crosslinking strategy to fabricate clustered polymersomes using host-guest interactions. By controlling the input of crosslinker and environmental conditions, reversible aggregation and disassembly of these polymersomes can be achieved. The size and structure of these clustered polymersomes can be regulated and visualized through a fluorescent enzymatic cascade reaction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Junjie Xu, Weixiong Huang, Ruiling Li, Li Li, Jinjin Ma, Jiaou Qi, Haiyan Ma, Min Ruan, Lilin Lu
Summary: In this study, a potassium doped palladium catalyst was developed for acetylene hydrogenation, showing excellent catalytic performance and durability. The doping of potassium effectively weakened the adsorption of ethylene, improved ethylene selectivity, and lowered the barriers of hydrogen activation and transfer reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)