Article
Thermodynamics
Junhui Li, Patricia Weisensee
Summary: This study experimentally investigates the fluid breakup and Leidenfrost dynamics for droplets impacting a heated millimetric post. The findings show that the post substrate leads to a shorter droplet lifetime, a higher Leidenfrost temperature, and enhanced cooling capacity compared to a flat substrate.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Thermodynamics
Joo Hyun Moon, Chang Kyoung Choi, Seong Hyuk Lee
Summary: In this research, the characteristics of pinning behaviors and local mass flux variations during droplet evaporation at different surface temperatures were investigated. The findings indicate that pinning time and Marangoni number increase with surface temperatures from 20°C to 50°C, but decrease at temperatures above 50°C. Additionally, the local mass flux at the contact line significantly increases over time, showing a ten-fold increase from 0.1t(f) to 0.9t(f).
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Mechanics
Amgad Salama
Summary: Porous membranes filter based on the relationship between pore sizes and sizes of dispersals, but additional selectivity criteria are needed when dispersals are droplets. Research shows that droplets permeate through the largest pore first, until their size matches the critical size associated with the next larger pore opening.
Article
Chemistry, Physical
K. A. Voytkova, S. V. Syrodoy, Zh. A. Kostoreva
Summary: The experimental results of pinning/sliding water droplets onto tilted stainless steel substrates with different roughness and texture directions are reported in this study. The substrates were textured by a grinding machine and droplets were dropped onto them using a syringe. The probabilities of droplet pinning or sliding on different surfaces were obtained using probability theory.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Nanoscience & Nanotechnology
Mehdi H. Biroun, Luke Haworth, Prashant Agrawal, Bethany Orme, Glen McHale, Hamdi Torun, Mohammad Rahmati, YongQing Fu
Summary: This study introduces a new method to actively control the droplet impact onto superhydrophobic and SLIPS surfaces using surface acoustic waves (SAWs). The results show that SAWs can effectively modify the impact dynamics of droplets on the surfaces by altering the oil lubricant thickness, reducing contact time, and changing rebound angles.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Mohsen Hosseini, Alejandro Rodriguez, William A. Ducker
Summary: The addition of a thin, porous, hydrophilic coating to an impermeable solid can accelerate the evaporation of liquid droplets. The droplets are quickly absorbed and spread laterally to form a thin, broad disk, which increases the liquid-vapor interface for evaporation. Experimental results show that the evaporation rate of droplets on the thin coating is enhanced by a factor of 7-8, and it is not proportional to the reciprocal thickness of the coating. Enhancing the evaporation of small droplets on a solid surface can have practical applications, such as expediting the death of microbes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Zhifeng Hu, Fuqiang Chu, He Shan, Xiaomin Wu, Zhichao Dong, Ruzhu Wang
Summary: This review comprehensively summarizes the progress on phenomena, mechanisms, regulations, and applications of droplet impact on superhydrophobic surfaces. The focal points are droplet contact and rebound, and various applications are classified according to their requirements. The review also points out the remaining challenges and outlines future research directions.
ADVANCED MATERIALS
(2023)
Article
Energy & Fuels
Mariola M. Blaszczyk, Lukasz Przybysz
Summary: Emulsion formation is an energy-consuming process, and alternative methods are needed to obtain emulsions with small droplet sizes. The use of imbibition process in porous materials allows for the creation of emulsions with small droplet sizes and reduced polydispersity.
Article
Chemistry, Physical
Sungchan Yun
Summary: The impact dynamics of oscillating ellipsoidal drops on non-wetting surfaces are influenced by ellipticity, oscillation phase, and Weber number, showing hysteresis and asymmetry in momentum distribution at different phases. The oscillation phase and ellipticity play important roles in altering the hydrodynamics and reducing the bounce magnitude.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Construction & Building Technology
Anh Dung Tran Le, Jianshun S. Zhang, Zhenlei Liu
Summary: This article presents a validated model to study the influence of humidity on formaldehyde sorption of building material and the effect of formaldehyde and moisture buffering capacity of hygroscopic porous material on indoor air environment. The developed numerical model considers the impact of RH on VOC diffusion in building materials, and can be used to optimize the hygric performance and IAQ in building. The results highlight the importance of moisture and formaldehyde buffering capacity in selecting clean and hygroscopic building materials in building design.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Chemistry, Physical
Qianjin Huang, Zhongqiang Zhang, Zhen Liu, Fujian Zhang, Guanggui Cheng, Jianning Ding
Summary: This study reveals the mechanism of the pinning effect induced by surface defects on droplet self-driving and finds that a monolayer graphene can reduce this effect. The findings provide theoretical support for reducing the pinning effect in droplet transport.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Junjie Chi, Changmin Shao, Luoran Shang, Yuanjin Zhao, Fangfu Ye
Summary: A novel Janus porous patch with anisotropic surface wettability was created from microfluidic droplet templates for wound healing, demonstrating efficient drainage of exudate and prevention of undesired tissue adhesion in a rat skin defect model. This study offers a promising strategy for the clinical treatment of skin wound diseases.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Coatings & Films
Guotao Zhang, Yingkang Shi, Baohong Tong, Yunlong Jiao, Yanguo Yin, Kun Liu
Summary: The self-repair function of slippery liquid-infused porous surfaces (SLIPS) plays a crucial role in maintaining the continuity and stability of lubricating film. This study established a numerical model to explore the exudation behavior of lubricant in micropores, revealing the flow mechanism of oil droplet spreading to oil film.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Engineering, Environmental
Junshuo Zhang, Yu Wang, Jianpeng Wu, Jianyu Zhou, Wenhui Wang, Shuai Liu, Yucheng Pan, Min Sang, Bing Liu, Xinglong Gong
Summary: This study proposes a novel strategy for achieving multi-physics protection through biomimetic structural design, and develops a smart fire suit. The fire suit not only exhibits excellent impact resistance and thermal insulation, but also monitors mechanical injury behavior.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Fang-Qi Zhu, Wen-Zhen Fang, Tze How New, Yugang Zhao, Chun Yang
Summary: The study investigates how the frozen morphologies of impact water droplets are formed on a subcooled inclined surface. Four types of frozen droplet morphologies were discovered, and a phase diagram was proposed to show how frozen morphologies are controlled by droplet impact and freezing related timescales. The competition between droplet solidification and impact hydrodynamics timescales are altered by the inclined impact.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Chemistry, Applied
Chi Zhang, Sinan Keten, Dominique Derome, Jan Carmeliet
Summary: Through atomistic simulation, the mechanical behavior of cellulose-cellulose nanocrystal hydrophilic interface was studied, showing the central role of interfacial hydrogen bonds in explaining various findings. The friction force generated by a single hydrogen bond was estimated to be around 1.3 E-10 N under a shearing speed of 1 m/s.
CARBOHYDRATE POLYMERS
(2021)
Correction
Materials Science, Composites
Ahmad Rafsanjani, Dominique Derome, Falk K. Wittel, Jan Carmeliet
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Thermodynamics
Feifei Qin, Jianlin Zhao, Qinjun Kang, Thomas Brunschwiler, Jan Carmeliet, Dominique Derome
Summary: Based on the numerical study, a higher initial nanoparticle concentration leads to larger and more numerous necks, resulting in increased effective thermal conductivity of the NTS. Drying temperature has minimal impact on the effective thermal conductivity of the resultant NTS, but neck size and distribution become more uniform at higher drying temperatures. Decreasing wettability of the cavity's top and bottom surfaces causes necks to shrink or disappear, while the size of necks between filler particles in the middle of the cavity slowly expands, leading to a decrease in the effective thermal conductivity of the NTS.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
Danhong Wang, Jan Carmeliet, Kristina Orehounig
Summary: This study conducted a comprehensive evaluation on a prosumer-based district heating system, showing that district heating systems often outperform individual heating systems, with factors such as district size, building retrofitting stage, and system configuration impacting system performance. The proper selection of storage volume to solar collector area ratio is crucial for the efficiency of district heating systems.
Article
Mechanics
T. C. de Goede, A. M. Moqaddam, K. C. M. Limpens, S. A. Kooij, D. Derome, J. Carmeliet, N. Shahidzadeh, D. Bonn
Summary: When a droplet impacts a fabric mesh at high velocity, it spreads and penetrates the pores of the fabric. The reduced spreading ratio on fabrics is attributed to increased viscous losses during spreading, both with and without a substrate. Blood can be considered a Newtonian fluid when spreading on fabrics, similar to smooth surfaces.
Article
Plant Sciences
Naika Meili, Gabriele Manoli, Paolo Burlando, Jan Carmeliet, Winston T. L. Chow, Andrew M. Coutts, Matthias Roth, Erik Velasco, Enrique R. Vivoni, Simone Fatichi
Summary: Increasing urban tree cover is a common strategy to mitigate urban heat, as trees can cool cities through evapotranspiration and shading. However, the cooling potential of urban trees varies depending on climate and time of day, with complex interactions between factors such as evapotranspiration, shading, and aerodynamic roughness. Numerical experiments using urban ecohydrological models show that well-watered trees can significantly decrease air temperature, but interactions with factors like wind flow and radiation can influence the overall cooling effect. Urban trees have the potential to improve local microclimates, but their impact is influenced by a combination of factors that need to be carefully considered in urban planning and species selection.
URBAN FORESTRY & URBAN GREENING
(2021)
Article
Environmental Sciences
Jianlin Zhao, Feifei Qin, Robert Fischer, Qinjun Kang, Dominique Derome, Jan Carmeliet
Summary: With the modified interacting capillary bundle model, the dynamics of liquid imbibition in a square tube with corner films were accurately described, showing the universal scaling law for the main meniscus. This model is helpful in investigating the mechanisms during spontaneous imbibition and the impacts of various factors on imbibition dynamics.
WATER RESOURCES RESEARCH
(2021)
Article
Multidisciplinary Sciences
Chi Zhang, Mingyang Chen, Sinan Keten, Benoit Coasne, Dominique Derome, Jan Carmeliet
Summary: Wood hygromechanics mechanisms remain unclear due to nanoscopic system size and highly coupled physics. This study uses molecular dynamics simulations to characterize wood polymers, revealing the dominating role of cellulose fiber in wood cell wall mechanics. The moisture-induced anisotropic swelling and weakening of wood cell wall is governed by the interplay of cellulose reinforcement, mechanical degradation of matrix, and fiber-matrix interface.
Review
Mechanics
Yifan Fan, Yongling Zhao, Juan F. Torres, Feng Xu, Chengwang Lei, Yuguo Li, Jan Carmeliet
Summary: This article reviews the progress on less visited fundamental topics related to natural convection, including flow structures, instability characteristics, and heat and mass transfer control, providing an outlook on perturbation generators and methods of altering large-scale flow structures.
Review
Green & Sustainable Science & Technology
Jing Kong, Yongling Zhao, Jan Carmeliet, Chengwang Lei
Summary: With rapid urbanization and increased anthropogenic activities, more major cities worldwide are experiencing severe urban heat islands, which can cause complex impacts on the urban environment and public health, especially during heatwaves. Research indicates that urban areas are more vulnerable than rural areas during heatwaves, but certain studies show the opposite. Increasing albedo, vegetation fraction, and irrigation are found to lower urban temperatures during heatwaves.
Article
Chemistry, Physical
Robert Fischer, Jean Schoeller, Rene M. Rossi, Dominique Derome, Jan Carmeliet
Summary: Pronounced fingering of the waterfront occurs during in-plane wicking in thin, aligned electrospun fibrous membranes. A non-local transport model considering the waterfront gradient and correlated random field is developed to explain this phenomenon. The size and shape of the fingers formed during wicking depend on the fiber orientation.
Article
Physics, Fluids & Plasmas
Feifei Qin, Jianlin Zhao, Qinjun Kang, Thomas Brunschwiler, Dominique Derome, Jan Carmeliet
Summary: Experimental studies have shown that the neck-based thermal structure (NTS) formed by colloidal nanoparticle deposition between microsize filler particles can significantly enhance vertical heat conduction in innovative three-dimensional chip stacks.
Correction
Construction & Building Technology
D. Derome, A. Rafsanjani, S. Hering, M. Dressler, A. Patera, C. Lanvermann, M. Sedighi-Gilani, F. K. Wittel, P. Niemz, J. Carmeliet
JOURNAL OF BUILDING PHYSICS
(2021)
Article
Food Science & Technology
Kevin Prawiranto, Jan Carmeliet, Thijs Defraeye
Summary: Solar drying may benefit from slower drying due to improved product quality. Dehumidification of the drying air is shown to be superior in retaining vitamin C content and prohibiting browning reaction. Drying with auxiliary heating is found to balance trade-offs between drying time, final product quality, and energy use.
FRONTIERS IN SUSTAINABLE FOOD SYSTEMS
(2021)
Article
Construction & Building Technology
Aytac Kubilay, Andrea Ferrari, Dominique Derome, Jan Carmeliet
Summary: An urban microclimate model is utilized to create a smart wetting protocol for multilayer street pavements to enhance evaporative cooling during heat waves. By using principles of capillary pumping and capillary break, a daily 6 mm wetting over 10 minutes in the morning can ensure maximal evaporative cooling for 24 hours during a heat wave.
JOURNAL OF BUILDING PHYSICS
(2021)
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)
