Article
Environmental Sciences
Jackson Nkoh Nkoh, Ke-wei Li, Yang-xiao-xiao Shi, Jiu-yu Li, Ren-kou Xu
Summary: Chitosan can improve the adsorption characteristics of phosphorus in highly weathered soils by increasing the surface positive charge and adsorption capacity of colloids. The presence of chitosan promotes the formation of various types of P complexes, enhancing the adsorption capability of P.
Article
Chemistry, Physical
Kumar Abhijeet Raj, Archana Balikram, Keka Ojha
Summary: This study examined the impacts of different nanoparticles on the rheological and structural properties of viscoelastic surfactant (VES) fluid. It was found that MgO and Fe2O3 enhanced VES fluid showed excellent rheological characteristics at certain concentrations. The Zeta potential and surface area of nanoparticles played an important role in enhancing the rheological properties of VES fluid. Cryo-FESEM images and dynamic rheology tests revealed changes in the structure and entanglement of micelles in the presence of nanoparticles. All the developed nano-enhanced VES fracturing fluids showed desired viscosity at high temperatures and were compatible with formation water.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Nanoscience & Nanotechnology
Baixue Xiao, Yuxuan Liu, Indika Chandrasiri, Clyde Overby, Danielle S. W. Benoit
Summary: This study aimed to investigate the effect of NP physicochemical parameters (size and charge) on macrophage polarization. It was found that cationic NPs promote both M1 and M2 macrophage markers, while anionic NPs promote M1-to-M2 polarization. Additionally, the size of NPs impacts protein corona abundance but not identities. These findings provide design principles for developing macrophage-mediated NP drug delivery systems.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Lin Huang, Fengqi Zhang, Wenming Sun, Xiongwu Kang
Summary: This study explores ruthenium (Ru) nanoparticles functionalized with nitrene ligands through the ruthenium-nitrene (Ru=N) pi bonds, and confirms the existence of Ru=N bonds. The coordination of nitrene ligands on the surface of Ru nanoparticles and their impact on catalytic performance were further characterized through various spectroscopic techniques. The results provide insights into the interaction between nitrene ligands and Ru nanoparticles, shedding light on their catalytic properties.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Loredana Amigoni, Lucia Salvioni, Barbara Sciandrone, Marco Giustra, Chiara Pacini, Paolo Tortora, Davide Prosperi, Miriam Colombo, Maria Elena Regonesi
Summary: Assessing toxic effects in living organisms is crucial for the development of safe nanomedicines, and using Caenorhabditis elegans as an alternative model for physiological functionality parameters associated with nanoparticles showed that both cationic and anionic groups in nanoparticles can optimize safety and potential applications in nanooncology.
Article
Materials Science, Paper & Wood
Jolita Pachaleva, Ruta Gruskiene, Alma Bockuviene, Jolanta Sereikaite
Summary: The application of nisin is increasing due to consumer demand for safe and healthy food. New delivery systems for nisin are being developed using encapsulation techniques with biopolymers. This study aimed to fabricate nisin-loaded nanoparticles with different surface charges. Pectin nanoparticles loaded with nisin were prepared and then coated with chitooligosaccharides. The nanoparticles demonstrated long-term stability and increased proteolytic stability of nisin.
Article
Biochemistry & Molecular Biology
Zhenxing Yang, Yuan Huang, Hao Chen, Jinzhi Zhang, Qichao Zou, Suxiao Wang
Summary: By designing starch-coated polymer nanoparticles, we found that nanoparticles with low amylose content or with etherification modification on the surface can exhibit excellent protein corona-free property, which is very promising for highly efficient nano drug carriers and marine coatings.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Physics, Applied
Francisco Pena-Camargo, Jarla Thiesbrummel, Hannes Hempel, Artem Musiienko, Vincent M. Le Corre, Jonas Diekmann, Jonathan Warby, Thomas Unold, Felix Lang, Dieter Neher, Martin Stolterfoht
Summary: Traditional inorganic semiconductors can be electronically doped with high precision, but the assessment and control of electronic doping density in metal-halide perovskites still remain uncertain. This study presents a multifaceted approach using optical and electrical characterization techniques to quantify the electronic doping density for various lead-halide perovskite systems. The results indicate that the doping density in common lead-based metal-halide perovskites is below the critical threshold of 10(12) cm(-3), which does not affect the device performance.
APPLIED PHYSICS REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Hamidreza Arandiyan, Sajjad S. Mofarah, Yuan Wang, Claudio Cazorla, Deshetti Jampaiah, Magnus Garbrecht, Karen Wilson, Adam F. Lee, Chuan Zhao, Thomas Maschmeyer
Summary: The study found that the formation of oxygen vacancies on the surface of LaNiO3 perovskite electrocatalysts enhanced their OER activity and stability, leading to different activity characteristics, which occurred under hydrogen reduction at 700 degrees Celsius.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Multidisciplinary Sciences
Benjamin A. Legg, Kislon Voitchovsky, James J. De Yoreo
Summary: In this study, the growth process of an aluminum hydroxide film from an aqueous solution was directly observed using high-speed atomic force microscopy. The results showed that the dynamically fluctuating nanostructures preceding the formation of the film exhibited similar characteristics to those predicted by classical nucleation theory. However, the cluster energy landscape deviated from classical expectations. Kinetic Monte Carlo simulations revealed that these deviations were caused by electrostatic interactions between the clusters and the underlying substrate, resulting in microphase separation and the formation of a nanostructured surface phase.
Article
Chemistry, Multidisciplinary
Yunyun Xue, Zihao Zhao, Yu Zhao, Chuyao Wang, Shuyang Shen, Zelin Qiu, Ronglu Cui, Shien Zhou, Lifeng Fang, Zhi Chen, Haihong Zhu, Baoku Zhu
Summary: With the emergence of drug-resistant pathogens, new strategies for high antibacterial efficacy are urgently needed. In this study, cationic nano-sized hyperbranched polymers (CNHBPs) were constructed, and one particular type showed the highest antimicrobial and antibiofilm activities. It also exhibited superior therapeutic efficacy in a mouse wound model of MRSA infection.
Article
Chemistry, Physical
K. H. Girish
Summary: Perovskite solar cells have made significant progress in efficiency, but are still hindered by surface defects and stability issues. Passivating surface defects with organic halide salts can increase carrier lifetime and improve charge collection efficiency, enhancing the overall performance of the cells.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
B. Oyku Alan, Murat Barisik
Summary: This study investigates the impact of temperature on the surface charge of silica nanoparticles (SNP) with different sizes and roughness, revealing a significant increase in surface charge with higher temperatures. The deviation from existing theory due to temperature variation is characterized, indicating a complex relationship between temperature, particle size, and surface charge regulation. A phenomenological model is proposed to predict surface charge of SNPs based on particle size, roughness, and temperature, offering important insights for nanoparticle characterization and potential applications involving temperature adjustments.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Immunology
Ge Yu, Zhihui Liang, Zilan Yu, Min Li, Wenqi Yang, Yawei Zhang, Yuhang Zhao, Cheng Yang, Changying Xue, Li Shi, Bingbing Sun
Summary: In this study, aluminum oxyhydroxide nanorods were engineered and their interaction with various antigens was investigated. It was found that the surface hydroxyl contents and specific surface area of the nanorods played important roles in determining the adsorption strength and capacity of the antigens and also affected the stability of the adsorbed antigens. By manipulating the intrinsic characteristics of aluminum-based adjuvants, the adsorption behavior between antigens and aluminum adjuvants could be regulated, leading to the optimization of vaccine formulations.
Review
Chemistry, Multidisciplinary
Michele Giovanni Bianchi, Francesca Risplendi, Michele Re Fiorentin, Giancarlo Cicero
Summary: This review paper aims to provide a comprehensive description and discussion of the effects of intentional and unintentional defects in WS2, based on recent experimental and theoretical investigations. The most common intrinsic defects in WS2 are presented and their impacts on the material properties are discussed. Solutions to remove and heal unintentional defects, as well as various doping schemes, are analyzed. The plethora of WS2 monolayer modifications and the systematic analysis of their optical and electronic properties presented in this study offer strategic degrees of freedom for researchers to tailor WS2 for specific device applications.
Article
Chemistry, Multidisciplinary
Niels Mendel, Hao Wu, Frieder Mugele
Summary: A novel electric nanogenerator has been developed that converts the energy of moving drops into electrical signals through charge trapping technology, using a unique combination of stacked materials and charging methods to maintain stability in high temperatures, with potential for applications in energy harvesting and other fields.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Harmen Hoek, Ranabir Dey, Frieder Mugele
Summary: The study shows that despite contact angle hysteresis and random drop coalescence events, the preferential drop positions closely follow numerically calculated local minima of electrostatic energy for variable drop size. This quantitative understanding provides important insights for improving heat transfer performance in various applications.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Chemistry, Physical
Sachin Nair, Jun Gao, Cees Otto, Michael H. G. Duits, Frieder Mugele
Summary: By using 3D Confocal Raman Microscopy, it was found that the surfactant layer is stable at high salinities, leading to preferential oil wetting. Upon reducing the ambient brine salinity, this layer decomposes and the surfaces become more water wet. The surfactant is found to partly dissolve in the oil and partly precipitate at the oil-water interface.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Mechanical
Qierui Zhang, Frieder Mugele, Dirk van den Ende, Piet M. Lugt
Summary: The study found that the Washburn-like model based on the affinity of the oil for the grease matrix is applicable for greases made of various thickeners and base oils. This model can potentially be used for modeling the bleeding of stationary grease and monitoring the change in bleeding properties of greases in a bearing.
TRIBOLOGY TRANSACTIONS
(2021)
Article
Chemistry, Analytical
Sachin Nair, Jun Gao, Cees Otto, Michael H. G. Duits, Frieder Mugele
Summary: This study demonstrates the ultrasensitive detection of R6G molecules adsorbed from aqueous solutions using algorithm-improved confocal Raman microscopy and chemical enhancement by two-dimensional substrates. By developing a protocol for laser-induced reduction of graphene oxide and noninvasive Raman imaging, subnanomolar limits of detection were achieved on various substrates, allowing for the study of adsorption kinetics and imaging of spatial distribution. The findings suggest a strong potential for algorithm-improved graphene-enhanced Raman spectroscopy as a convenient method for detecting, imaging, and quantifying trace amounts of adsorbing molecules on different 2D substrates.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Shaoqiang Su, Igor Siretanu, Dirk van den Ende, Bastian Mei, Guido Mul, Frieder Mugele
Summary: This study utilized dual scale atomic force microscopy to measure electrostatic and hydration forces of faceted semiconducting SrTiO3 nanoparticles in aqueous electrolyte, revealing facet-dependent surface charges and a microscopic charge generation mechanism that explains colloidal scale electrostatic forces.
ADVANCED MATERIALS
(2021)
Article
Energy & Fuels
Duy Le-Anh, Ashit Rao, Stefan Schlautmann, Amy Z. Stetten, Subhash C. Ayirala, Mohammed B. Alotaibi, Michel H. G. Duits, Han Gardeniers, A. A. Yousef, Frieder Mugele
Summary: This study investigates the impact of fluid aging and temperature on the design of a successful microfluidic improved oil recovery (IOR) strategy. Laboratory experiments were performed using a glass 2.5D micromodel to simulate waterflooding processes at the pore scale. The results demonstrate the significance of fluid aging and temperature in achieving effective oil recovery.
Article
Chemistry, Physical
Niels Mendel, Diana Siretanu, Igor Siretanu, Derk W. F. Brilman, Frieder Mugele
Summary: The study found that appropriately sized interlayer cations can open up the interlayer space, making carbon dioxide easily accessible and achieving efficient adsorption under suitable conditions, confirming the potential of natural layered expandable clay minerals for gas separation or carbon sequestration.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Aram Klaassen, Fei Liu, Frieder Mugele, Igor Siretanu
Summary: The balance between hydration and DLVO forces at solid-liquid interfaces controls many processes, with molecular scale hydration forces and surface charge density having largely independent origins. Oscillatory hydration forces were found to be largely independent of pH and salt concentration, and more pronounced on gibbsite surfaces due to the distribution of hydroxyl groups available for H bonding.
Article
Chemistry, Physical
Oezlem Kap, Simon Hartmann, Harmen Hoek, Sissi de Beer, Igor Siretanu, Uwe Thiele, Frieder Mugele
Summary: Polymer brush layers are responsive materials that swell in contact with solvents and their vapors. Experiments and calculations show that the dynamics of swelling in the brush layer are controlled by a combination of direct imbibition and vapor phase transport. A gradient dynamics model is developed to describe the observations and provide insights into the stabilization of non-equilibrium swelling profiles. The results emphasize the importance of vapor phase transport in wetting phenomena involving volatile liquids on functional surfaces.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Engineering, Chemical
Niels Mendel, Igor Siretanu, Frieder Mugele, Derk W. F. Wim Brilman
Summary: The study evaluated the separation efficiency of three montmorillonite-rich bentonite clay sorbents in biogas upgrading. The cation-exchanged clays showed good selectivity and fast regeneration, making them a promising alternative to traditional sorbents.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Igor Siretanu, Simone R. van Lin, Frieder Mugele
Summary: Researchers conducted a systematic study on hydration forces on mica surfaces and amorphous silica surfaces in aqueous electrolytes containing chloride salts. They found oscillatory and monotonically decaying hydration forces of similar strength on both surfaces, with a characteristic range of approximately 1 nm. The presence and disruption of force oscillations provide opportunities to probe water polarization.
FARADAY DISCUSSIONS
(2023)
Article
Multidisciplinary Sciences
Jianqiang Zhang, Xuejiao Wang, Zhaoyue Wang, Shangfa Pan, Bo Yi, Liqing Ai, Jun Gao, Frieder Mugele, Xi Yao
Summary: The study presents a programmable magnetic actuation method to manipulate droplets of various kinds using ferrofluid wetting ridges, which is crucial for biomedical and industrial applications such as processing and analyzing biological samples and collectively actuating micrometer-sized droplets.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.