Article
Materials Science, Multidisciplinary
Tevis D. B. Jacobs, Lars Pastewka
Summary: Materials science studies the relationship between a material's structure and its properties, including elastic modulus, yield strength, and other bulk properties in the sphere of mechanical behavior. This article shows that a material's surface structure governs its surface properties, such as adhesion, friction, and surface stiffness. The articles in this issue provide the latest understanding of the structure-property connections for surfaces, including the theoretical basis for topography-dependent properties and the engineering of surfaces to improve performance.
Article
Materials Science, Multidisciplinary
Tomasz Trzepiecinski, Krzysztof Szwajka, Marek Szewczyk
Summary: Predicting changes in surface roughness caused by friction is important for assessing product quality and surface suitability for varnishing or painting. This study investigated the effects of lubricant pressure and viscosity on the roughness parameters of DC03 steel sheets after friction testing.
Article
Engineering, Chemical
Georgina E. Marsh, Matt J. Bunker, Morgan R. Alexander, Ricky D. Wildman, Mark Nicholas, Clive J. Roberts
Summary: In the pharmaceutical industry, studying the effect of surface roughness on interparticulate interactions is crucial. This study demonstrates the fabrication of customized sub-micron geometric structures using two-photon polymerization and investigates their impact on particle adhesion. The results show that varying surface morphology significantly affects particle-surface adhesion. This research provides an in-depth understanding of the influence of surface features on particle adhesion and may aid in the design and optimization of powder processes.
Article
Dentistry, Oral Surgery & Medicine
Merve Ozarslan, Dilber Bilgili Can, Nermin Hande Avcioglu, Secil Caliskan
Summary: This study evaluated the adhesion of Streptococcus mutans on CAD/CAM materials with different surface treatments and found that non-polished surfaces had higher surface roughness and bacterial adhesion.
CLINICAL ORAL INVESTIGATIONS
(2022)
Review
Engineering, Biomedical
N. O. Monteiro, J. F. Fangueiro, R. L. Reis, N. M. Neves
Summary: The surface topographies of cell culture substrates can be utilized to create in vitro environments that resemble the in vivo cell niches. The physical properties of the extracellular matrix (ECM), including its topography, play a crucial role in modulating cell function in vivo. Artificially generated substrate topographies have been extensively explored, while recent advancements allow the replication of natural surface topographies for more realistic and biomimetic environments. This review discusses the use of natural surface topographies as a template for generating advanced substrates for in vitro cell culture, including their effects on cell function and the challenges and advantages associated with their use.
BIOACTIVE MATERIALS
(2023)
Article
Engineering, Chemical
Caralyn A. Stevenson, Myles C. Thomas, Stephen P. Beaudoin
Summary: Through simulations of the centrifuge technique, it was found that the adhesion behavior of rough powder can be described using an equivalent powder of smooth spherical particles. These results demonstrate the capability of the enhanced centrifuge technique for advanced powder characterization.
Article
Multidisciplinary Sciences
Qian Ban, Wenqiao Hui, Quanchao Duan, Wenfei Liu, Meng Zhang, Xiaofeng Li, Hanyue Kang, Zhenni Shi, Yan Zhang, Jinbin Hou, Xiuzhen Xu, Shoudong Ye, Baowei Zhang, Xiaobin Xu
Summary: Here, we report the scalable fabrication of 2i-functionalized micro-pyramid-array (mu PyA/+2i) inserts for maintaining long-term self-renewal and pluripotency of multiple mESCs. These inserts provided flexible and gelatin-free microenvironments and showed increased alkaline phosphatase activity, high expression of mESC self-renewal markers, decreased levels of differentiation-associated markers, and high proportion of self-renewal marker cells. The microstructured inserts also influenced the cytoskeleton and cell adhesion through Cldn-7 upregulation, enabling easier stem cell manipulation and transfer among culture dishes.
Article
Engineering, Biomedical
Ke Zhou, Yutong Li, Lei Zhang, Liang Jin, Feng Yuan, Jinyun Tan, Guangyin Yuan, Jia Pei
Summary: By developing surface gradients with varying nano-micro roughness on magnesium, a study on the response of endothelial cells and smooth muscle cells was conducted, revealing significant differences between the two cell types in highly rough regions. Surface topography played a crucial role in overcoming the biochemical cues and was found to modulate cell response. Insights into the regulatory mechanism at subcellular and gene levels were also gained through this research.
BIOACTIVE MATERIALS
(2021)
Article
Engineering, Chemical
Tom Marquardt, Andreas W. Momber
Summary: This study assessed the fractal parameters of blast-cleaned substrates using scanning electron microscope (SEM) images. The results showed that different factors did not significantly affect the fractal dimensions, indicating that the direct use of SEM images is not suitable for estimating the fractal dimensions of blast-cleaned steel substrates.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Civil
Jiuyue Zhao, Weihua Zhou, Jinyuan Tang, Tingting Jiang, Huaming Liu
Summary: This study proposes an extended analytical model for predicting the peened surface topography by considering the random nature of the shot stream and the overlap of dimples with the initial surface. The model is validated by comparing the measured and simulated results and shows better description of the surface profile compared with the finite element method.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Jan Varga, Teodor Toth, Lubos Kascak, Emil Spisak
Summary: The article discusses the impact of milling strategies on surface quality and geometric deviations during pocket milling. Experimental research using an aluminum alloy examined different milling strategies and evaluated their effects on surface roughness and geometric deviations. The results demonstrate that different strategies have varying influences on surface quality and texture.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Na Xue, Weiwei Li, Ling Shao, Zhibiao Tu, Yingwei Chen, Sheng Dai, Nengyong Ye, Jitang Zhang, Qijie Liu, Jinfang Wang, Meng Zhang, Xinxing Shi, Tianle Wang, Mengliang Chen, Yingqi Huang, Feilong Xu, Liu Zhu
Summary: In this study, copper-coated graphite and copper composite coatings were deposited on AZ31B magnesium alloy and 6061 T6 aluminum alloy substrates using a solid-state cold spray technique. The effects of different process parameters on the microstructure, surface roughness, thickness, and adhesion of the coatings were investigated. The results showed that the surface roughness, thickness, and adhesion of the coatings were influenced by the gas temperature and pressure, while the hardness of the substrate had no significant impact on the coating thickness.
Article
Materials Science, Multidisciplinary
Jie Ying, Zhen Yin, Peng Zhang, Peixiang Zhou, Kun Zhang, Zihao Liu
Summary: This study conducted a comparative experimental study of ultrasonic vibration-assisted and ordinary grinding of SiCp/Al. The results showed that ultrasonic vibration-assisted grinding can effectively reduce the surface roughness of SiCp/Al and alleviate the problems of SiC particle pullout. The study also analyzed the primary reasons for SiC particle pullout and high surface roughness in SiCp/Al processing.
Article
Multidisciplinary Sciences
Lucy C. Bowden, Jocelyn G. W. Evans, Katelyn M. Miller, Anton E. Bowden, Brian D. Jensen, Sandra Hope, Bradford K. Berges
Summary: It has been found that carbon-infiltrated carbon nanotubes (CICNT) coated surfaces exhibit anti-biofilm properties against Staphylococcus aureus. The diameter of the nanotubes has an effect on the reduction of adherent bacteria, with 150 nm nanotubes showing the greatest effect. This anti-biofilm effect is consistent across different S. aureus isolates and may be attributed to the structure of the nanotubes themselves.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Mechanical
Ryo Sakakibara, Ichiro Yoshida, Sho Nagai, Yuki Kondo, Kenichi Yamashita
Summary: The study introduces a newly developed algorithm to evaluate the running-in wear process of plateau surfaces, addressing the calculation problems and human judgment required in previous methods. This proposed method offers easy, precise, and direct evaluation of plateau surfaces and is expected to aid in determining optimal machining methods and conditions.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Biophysics
Yuuka Fukui, Narumi Kabayama, Keiji Fujimoto
COLLOIDS AND SURFACES B-BIOINTERFACES
(2015)
Article
Biophysics
Yuuka Fukui, Daiki Sakai, Keiji Fujimoto
COLLOIDS AND SURFACES B-BIOINTERFACES
(2016)
Article
Engineering, Biomedical
Yuuka Fukui, Shuhei Kameyama, Keiji Fujimoto
JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
(2017)
Article
Materials Science, Biomaterials
Yuuka Fukui, Megumi Fukuda, Keiji Fujimoto
JOURNAL OF MATERIALS CHEMISTRY B
(2018)
Article
Chemistry, Physical
Sachiko Kaihara, Masatoshi Narikawa, Keiji Fujimoto
COLLOID AND POLYMER SCIENCE
(2012)
Article
Engineering, Biomedical
Sachiko Kaihara, Ayaka Sumimoto, Keiji Fujimoto
JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
(2013)
Article
Chemistry, Physical
Yuuka Fukui, Keiji Fujimoto
JOURNAL OF MATERIALS CHEMISTRY
(2012)
Article
Chemistry, Multidisciplinary
H. Watanabe, M. Nishimura, Y. Fukui, K. Fujimoto
Article
Chemistry, Multidisciplinary
Yuuka Fukui, Saki Nakada, Keiji Fujimoto
Article
Materials Science, Multidisciplinary
Yuuka Fukui, Yui Ozawa, Keiji Fujimoto
JOURNAL OF MATERIALS CHEMISTRY C
(2013)
Article
Polymer Science
Yuuka Fukui, Hikari Otsuka, Keiji Fujimoto
Article
Chemistry, Physical
Y. Fukui, K. Yamamoto, T. Yamamoto, K. Fujimoto
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2020)
Article
Polymer Science
Yuuka Fukui, Ryota Fujino, Yusuke Sugaya, Keiji Fujimoto
Article
Materials Science, Multidisciplinary
Yuuka Fukui, Haruna Sumida, Yusuke Sugaya, Keiji Fujimoto
Summary: Porous polymeric membranes were fabricated using the miniemulsion templating method to investigate the phenomenon of transmitted and scattered lights. It was found that immersing the membranes in liquids with different refractive indices resulted in a change in wavelength and color. The study also demonstrated the possibility of controlling the coloration by adjusting the temperature and refractive indices.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Physical
Yuuka Fukui, Hideyuki Takamatsu, Keiji Fujimoto
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2017)
Article
Biophysics
Cristina Potrich, Anna Pedrotti, Cecilia Pederzolli, Lorenzo Lunelli
Summary: This study developed different functional surfaces for capturing exosomes and verified their effectiveness through experiments. Among them, the negatively-charged surface performed the best, capturing a large number of exosomes and successfully analyzing their biomarkers.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Brojendra Nath Saren, Srushti Mahajan, Mayur Aalhate, Rahul Kumar, Essha Chatterjee, Indrani Maji, Ujala Gupta, Santosh Kumar Guru, Pankaj Kumar Singh
Summary: This study developed P-selectin-targeted dasatinib nanoparticles coated with chitosan and fucoidan (DST-CH-FUC-NPs), which showed sustained release, reduced hemolytic potential, increased cytotoxicity and cellular uptake compared to free dasatinib. These nanoparticles also demonstrated enhanced ROS production, mitochondrial membrane potential damage, apoptosis induction, cell migration inhibition, and disruption of lysosomal membrane integrity.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Weiping Deng, Xiaohui Li, Ya Li, Zhongbing Huang, Yulin Wang, Ning Mu, Juan Wang, Tunan Chen, Ximing Pu, Guangfu Yin, Hua Feng
Summary: This study demonstrates the importance of chirality in nerve repair by constructing a GO-phenylalanine derivative hydrogel system. In vivo experiments show that the dextro group significantly improves functional recovery and histological restoration in rat sciatic nerve repair models. The doped GO promotes angiogenesis and myelination. These results suggest that chirality plays a crucial role in promoting nerve regeneration.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Xiaoyan Wang, Jin Gao, Yu Gao, Linlin Zhang, Congchao Xu, Qintong Li, Lin Li, Jianliang Xue
Summary: In this study, a highly effective surfactant producer strain, Bacillus Cereus GX7, was isolated from the oil tank bottom sludge of Shengli Oil Field in China. The biosurfactant produced by GX7 was identified as surfactin, a lipopeptide surfactant, through TLC, FT-IR, and LC-MS/MS analysis. The fermentation process of GX7 was optimized using single-factor experiments, focusing on the composition of fermentation medium and fermentation conditions. Glucose and peptone were found to be the best carbon and nitrogen sources, and the optimum temperature, inoculum amount, pH, rotation speed, and fermentation time for the strain were determined to be 30°C, 1%, 7.5, 150 rpm, and 48 h, respectively. After optimization, the surface tension and emulsification index of the fermentation broth were 26.84 mN/m and 57.84%, respectively. Furthermore, the biosurfactant produced by GX7 demonstrated good stability over a wide range of temperature, pH, and salt concentration.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Rodney Marcelo do Nascimento, Christine Grauby-Heywang, Houssem Kahli, Nesrine Debez, Laure Beven, Ivan Helmuth Bechtold, Touria Cohen Bouhacina
Summary: This article presents a theoretical model based on thermodynamic rules to assess the early stages of bacterial biofilm formation on different material surfaces. By utilizing morphological characteristics of bacteria and Atomic Force Microscopy images, the model generates a dataset of energetically minimized states, which can be correlated with bacterial adhesion states.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Filipa A. L. S. Silva, Licinia Timochenco, Raquel Costa-Almeida, Jose Ramiro Fernandes, Susana G. Santos, Fernao D. Magalhaes, Artur M. Pinto
Summary: The study demonstrates that by photoreducing nanosized graphene oxide using ultraviolet radiation, nanometric particles with high light-to-heat conversion efficiency and water stability can be obtained. These nanomaterials exhibit high absorption in the near-infrared region and show no cytotoxicity towards human cells, indicating their potential for safe therapy.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
D. Costa, V. De Matteis, F. Treso, G. Montani, M. Martino, R. Rinaldi, M. Corrado, M. Cascione
Summary: This review primarily discusses the relationship between contact lens discomfort (CLD) and the surface properties of contact lenses (CLs), specifically the coefficient of friction (CoF). The review emphasizes the importance of introducing a standardized protocol for measuring CoF and calls for a more precise evaluation of the relationship between surface properties and comfort in CLs users.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Debdip Brahma, Tamal Sarkar, Rupal Kaushik, Akshay Narayan Sarangi, Amar Nath Gupta
Summary: This in-vitro study evaluates the effect of reactive oxygen species (ROS) on the structural rearrangement of elastin. The results show that oxidative stress leads to a decrease in protein size and changes in secondary structure, potentially promoting protein aggregation. This study is important for therapeutics aiming to prevent elastin degradation and aging.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Xin Yang, Qiang Wang, Chaoxi Yan, Degang Huang, Yinchang Zhang, Huazheng He, Shouliang Xiong, Congming Li, Pingbo Chen, Tingjun Ye, Dan Hu, Lei Wang
Summary: This study presents a practical and effective strategy to improve osseointegration in patients with osteoporosis. By coating titanium implants with polydopamine followed by strontium modification, the bi-functional implants promote bone regeneration and immune regulation. The results show good biocompatibility, sustained release of strontium ions, and stable osseointegration between bone tissues and implants.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Sengwang Fu, Jianping Zhu, Zhijun Jiang, Yue Cao, Yufei Chen, Lihao Zhang, Sunlong Li, Weipeng Lu, Chengbin Miao, Qing He, Qi Li, Weixing Zhang, Lehao Ren, Yachun Li, Hongchao Shi, Cihui Liu
Summary: Effective management of biofluids is crucial for in vivo surgical interventions. Recent advances include self-sealing needles, drug-eluting stents, and shear-thinning hydrogels. However, complications associated with intestinal mucosal injury and secondary damage still persist. In this study, researchers developed an interpenetrating Janus wettability stent coating that enables unidirectional draining of excessive biofluid. They also demonstrated directional biofluid movement using a self-pumping dressing with potential applications in biofluid collection and disease diagnosis through metal ion detection. This integrated system presents an opportunity for designing wound dressings with effective biofluid management and metal ion detection capabilities.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Maryam Hassani, Mojtaba Kamankesh, Mazda Rad-Malekshahi, Kobra Rostamizadeh, Farhad Rezaee, Ismaeil Haririan, Seyed Mojtaba Daghighi
Summary: Bacterial adhesion and biofilm formation on the surface of biomaterial implants is a critical problem, and a polymer brush coating with antiadhesive and antimicrobial properties has proven to be highly effective in resolving this issue.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Huaihong Zhang, Na Liu, Yuting Zhang, Hui Cang, Zhaosheng Cai, Ziqun Huang, Jun Li
Summary: A functionalized cationic polymer, CR-PQAC, was designed and synthesized for photothermal enhanced antimicrobial therapy. The CR-PQAC nanoparticles exhibited significant antibacterial activity and low cytotoxicity against mammalian cells.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Ipsita Sahu, Priyadarshi Chakraborty
Summary: Peptide nanotechnology bridges the gap between materials and biological worlds by utilizing self-assembly of short-peptide building blocks. Hydrogels engineered from these short peptides show great potential in biomedical applications, but their weak mechanical properties and limited functional diversity need to be addressed. Nanoengineering the networks of these hydrogels by incorporating small molecules, polymers, and inorganic/carbon nanomaterials can enhance their mechanical properties and expand their functional diversity.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Hao Wei, Yajun Gu, Ao Li, Panpan Song, Dingding Liu, Feihu Sun, Xiaofeng Ma, Xiaoyun Qian
Summary: In this study, a stable three-dimensional conductive hydrogel was prepared by cross-linking MXenes to Matrigel hydrogel. The conductive hydrogel promotes the proliferation and differentiation of NSCs, providing new strategies for neural tissue engineering.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Yue Zhong, Xiaoli Ge, Juan Zhang, Qun Wei, Feng Wang, Yongke Zhong
Summary: The effect of oxygenic groups on the hemocompatibility of activated carbon was studied through liquid-phase oxidation and subsequent heat treatment. Results showed that the presence of oxygenic groups improved hemocompatibility, while their removal decreased it.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)