Article
Biotechnology & Applied Microbiology
Huimin Li, Ting Xia, Hao Zeng, Yun Qiu, Yan Wei, Yihong Cheng, Yulan Wang, Xiaoxin Zhang, Jin Ke, Richard Miron, Qing He
Summary: Liquid platelet-rich fibrin (PRF) has shown promising effects on chondrocyte proliferation and cartilage regeneration. It can enhance chondrogenesis and regulate inflammatory responses, making it a potential alternative or complementary strategy to hyaluronic acid (HA) for future clinical applications.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Automation & Control Systems
Hongchao Qiao, Zhihe Cao, Jibin Zhao
Summary: Waterjet-guided laser processing is a novel technique used for metallic materials, specifically stainless steel in this study. By investigating the effects of processing parameters, such as grid spacing and laser power, on surface topography change and hydrophobicity, it was found that the process can yield textures with a hydrophobic surface. Observations included oxidation on the kerf edge and an increase in surface contact angle with decreasing grid size.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Navara Tanweer, Fazal-Ur-Rehman Qazi, Gotam Das, Afreen Bilgrami, Sakeenabi Basha, Naseer Ahmed, Hammam Ahmed Bahammam, Sarah Ahmed Bahammam, Syed Nahid Basheer, Ali A. Assiry, Mohmed Isaqali Karobari, Abdul Samad Khan, Artak Heboyan
Summary: Erosive beverages can cause surface characteristic changes in dental ceramics, specifically roughness and degradation. The type of erosive agent and immersion time have a significant impact on the surface roughness and topography of the ceramic material.
Article
Chemistry, Multidisciplinary
Mirjana Peric, Aleksandra Cairovic, Aleksandra Spadijer Gostovic, Dragan Stanimirovic, Marina Kostic, Marija Ivanov, Ana Ciric, Jasmina Glamoclija, Vladimir B. Pavlovic
Summary: This study evaluated the surface texture and biofilm adhesion of veneered or CAD/CAM milled zirconia after professional oral hygiene procedures. The results showed that routine methods of oral hygiene professional maintenance can damage the surfaces of glazed zirconia restorations.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Civil
Ming Luo, Yurun Jiang, Sen Wang, Xingnian Liu, Er Huang
Summary: This study experimentally evaluates the effect of stress history on bedload transport and bed topography in gravel-bed streams. The research finds that long-duration interevent periods reduce the spatial density of microtopography, limiting the variation of bedload transport fluctuation, while large-magnitude interevent periods increase the spatial density, enhancing the variation of bedload transport fluctuation. The grain distribution of transported bedload is significantly affected by the magnitude of the interevent period, rather than the duration. The study also explores the relationship between microtopography spatial density, characteristic grain sizes, and statistical parameters of bed topography at different scales, indicating that grain-scale bed topography is closely related to bed topography.
JOURNAL OF HYDROLOGY
(2023)
Article
Optics
Hongchao Qiao, Cao Zhihe, Cui Jianfeng, Jibin Zhao
Summary: Water jet guided laser micro-machining is a novel technique for micro-machining hard brittle materials, achieving high aspect ratio and kerf edge variations, particularly effective for cutting monocrystalline silicon.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Pharmacology & Pharmacy
Lu Ge, Liangliang Yang, Reinier Bron, Patrick van Rijn
Summary: Gene delivery plays a crucial role in bioengineering and biomedical applications. This study explores the influence of topography on gene transfection efficiency using different topographical substrates. The results demonstrate that topography can enhance the gene-delivery capacity and the effect is cell-type dependent. This research provides insights into the importance of cell stimulation in gene delivery and may contribute to the development of advanced nonviral gene delivery strategies.
Article
Materials Science, Multidisciplinary
Xinhui Wu, Haiyong Ao, Zhaoru He, Qun Wang, Zhaoxiang Peng
Summary: This study used femtosecond laser to provide microtopography coatings on titanium substrates and investigated the effects of different surface microstructures on bacterial activities and bone marrow mesenchymal stem cells (BMSC) functions. The results showed that microtopography coatings can inhibit bacterial adhesion and stimulate BMSC activity. These findings suggest that the femtosecond laser technique can produce microtopography coatings with excellent biocompatibility and antimicrobial properties, making it a promising method for modifying the surface of orthopaedic metal implants.
Article
Chemistry, Physical
Alex Tchinda, Laetitia Chezeau, Gael Pierson, Richard Kouitat-Njiwa, B. H. Rihn, Pierre Bravetti
Summary: The biocompatibility of rough and smooth surfaces of Y-TZP and ZrO2 discs was evaluated in this study. The results showed similar cell proliferation rates and coverage between Y-TZP and ZrO2 discs and control cells, regardless of the surface topography. Transcriptomic analysis indicated the excellent biocompatibility of Y-TZP, with differentially expressed transcripts mainly involved in mineral uptake and immune response pathways.
Article
Pharmacology & Pharmacy
Chun Pan, Haixiang Qin, Haibo Jin, Wenyuan Chen, Hongqian Guo, Xiaodong Han
Summary: This study provides the first evidence that prolonged exposure to MC-LR increases the incidence of bladder cancer, supported by human observation, animal models, and in vitro studies. The study also explores the mechanisms through which MC-LR promotes bladder cancer development.
Article
Materials Science, Biomaterials
Abolfazl Nazbar, Saeed Samani, Sepideh Yazdian Kashani, Amir Amanzadeh, Shahram Shoeibi, Shahin Bonakdar
Summary: This study demonstrates the application of cell-imprinted substrates as a novel method for the long-term expansion of adipose-derived stem cells (ADSCs) while maintaining their stemness. Using molecular imprinting of stem cells as a physical signal, these substrates can reduce stem cell differentiation and preserve their proliferation potential during in vitro culture.
JOURNAL OF MATERIALS CHEMISTRY B
(2022)
Article
Biochemistry & Molecular Biology
Tatsuhide Hayashi, Masaki Asakura, Shin Koie, Shogo Hasegawa, Akimichi Mieki, Koki Aimu, Tatsushi Kawai
Summary: This study investigated the deposition of thin films of titanium dioxide (TiO2), aluminum oxide (Al2O3), silicon dioxide (SiO2), and zinc oxide (ZnO) on zirconia using atomic layer deposition (ALD), and evaluated the cell proliferation abilities on each sample. The results suggest that TiO2 deposition using ALD could be a promising surface modification procedure for zirconia dental implants.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Polymer Science
Alex Lopez Marquez, Ivan Emilio Gareis, Fernando Jose Dias, Christoph Gerhard, Maria Florencia Lezcano
Summary: This review analyzes the effect of controlling fiber surface topography on cell-scaffold interactions in electrospun scaffolds based on in vitro studies. The results indicate that nanopores and roughness on fiber surfaces improve cell proliferation and adhesion. However, the quality of evidence varies for different cell-scaffold interactions and morphological attributes, calling for further research.
Article
Automation & Control Systems
Le Cao, Tao Huang, Xiao-Ming Zhang, Han Ding
Summary: This article introduces a generative adversarial network to predict the statistical distribution of surface topography based on cutting parameters, measured cutting forces, and system vibrations. By utilizing recursive architecture to learn the nonlinear correlation between surface topography and measured process quantities, and embedding useful tricks to enhance network performance, the model is able to capture texture characteristics effectively and improve learning. The results show that the recursive architecture performs better in learning the nonlinear correlation and avoiding the blur of high-frequency details through adversarial learning.
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2021)
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, Multidisciplinary
Hassan Nosrati, Rasoul Sarraf-Mamoory, Dang Quang Svend Le, Cody Eric Bunger
COMPOSITES PART B-ENGINEERING
(2020)
Article
Materials Science, Multidisciplinary
Hassan Nosrati, Rasoul Sarraf Mamoory, Dang Quang Svend Le, Cody Eric Bunger, Reza Zolfaghari Emameh, Fatemeh Dabir
MATERIALS CHARACTERIZATION
(2020)
Article
Materials Science, Multidisciplinary
Hassan Nosrati, Rasoul Sarraf Mamoory, Dang Quang Svend Le, Cody Eric Bunger
MATERIALS CHEMISTRY AND PHYSICS
(2020)
Article
Multidisciplinary Sciences
Hassan Nosrati, Rasoul Sarraf-Mamoory, Dang Quang Svend Le, Reza Zolfaghari Emameh, Maria Canillas Perez, Cody Eric Bunger
SCIENTIFIC REPORTS
(2020)
Article
Chemistry, Multidisciplinary
Hassan Nosrati, Rasoul Sarraf-Mamoory, Arman Karimi Behnagh, Reza Zolfaghari Emameh, Amir Aidun, Dang Quang Svend Le, Maria Canillas Perez, Cody Eric Buenger
Article
Biophysics
Maiken B. Davidsen, Jorge Felipe Lima Teixeira, Jeppe Dehli, Christian Karlsson, David Kraft, Pedro P. C. Souza, Morten Foss
Summary: The study examined the effects of heat treatment and storage time on the properties and cell interactions of PDA coatings. The results showed that these post-treatments increased the quinone groups on the surface of the PDA coating, decreased the primary amine groups, and enhanced cell proliferation.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Toxicology
D. Okhrimenko, J. A. Botner, H. K. Riis, M. Ceccato, M. Foss, M. Solvang
Summary: The biopersistence of fiber materials is crucial in assessing the potential health risks of inhalation. The dissolution rate of stone wool fibers depends on liquid composition, pH, reaction products transport, and fibers wetting properties. Presence of a sugar-based binder has no effect on the dissolution rate if fibers are wetted prior to the experiment.
TOXICOLOGY IN VITRO
(2022)
Article
Materials Science, Biomaterials
Thorbjorn Erik Koppen Christensen, Maiken Berglund Davidsen, Stijn Van Malderen, Jan Garrevoet, Vincent Offermanns, Ole Zoffmann Andersen, Morten Foss, Henrik Birkedal
Summary: It has been found that a local, sustained release of Sr from Ti-Sr-O coatings significantly increases the Sr/Ca ratio in periimplant bone.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2022)
Article
Chemistry, Physical
Haolin Li, Jianwei Ding, Shuangfei Cai, Wei Zhang, Xining Zhang, Ting Wu, Chen Wang, Morten Foss, Rong Yang
Summary: This study fabricates noble metal-semiconductor hybrid Au/ZnO nanowires photocatalysts and characterizes them comprehensively. Compared with ZnO nanowires, Au/ZnO heterostructures exhibit significantly enhanced photocatalytic performance, providing a feasible strategy to prepare plasmonic photocatalysts.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Miguel A. Ramos Docampo, Xiaomin Qian, Carina Ade, Thais Floriano Marcelino, Marcel Ceccato, Morten Foss, Ondrej Hovorka, Brigitte Stadler
Summary: In this study, different polymers were used to provide new locomotion abilities for nano/micromotors by hydrolyzing the pH-labile linkers and releasing the polymeric chains. The motors showed enhanced velocity in cell media and preliminary data indicated enhanced internalization by mammalian cells.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Tan-Phat Huynh, Yaqing Chen, Fiona L. Bach-Gansmo, Jeppe Dehli, Vicki N. Ibsen, Morten Foss, Anne S. Tvilum, Alexander N. Zelikin, Henrik Birkedal
Summary: Inspired by the mussel byssus formation process, this study proposes a simple method for underwater adhesive preparation. By injecting an acidic proto-coacervate of DOPA functionalized polyelectrolytes on underwater surfaces, coacervate adhesives can be formed without the need for pH adjustment or organic solvents. The pH of liquid-liquid phase separation can be tuned by substituting polyelectrolytes with different pK(a), satisfying different pH requirement. The coacervate-based adhesives exhibit strengths comparable to commercial glues and mussel glue, showing high biocompatibility in human epidermis in vitro.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Biochemistry & Molecular Biology
Thais Marcelino, Miguel A. Ramos Docampo, Xiaomin Qian, Carina Ade, Edit Brodszkij, Marcel Ceccato, Morten Foss, Mark Dulchavsky, James C. A. Bardwell, Brigitte Stadler
Summary: The immobilization of enzymes on solid supports is an important challenge in biotechnology and biomedicine. In this study, the authors used poly(2-(diethylamino)ethyl methacrylate)-based brushes to immobilize Thermoplasma acidophilum histidine ammonia lyase on planar and colloidal silica surfaces. They found that the grafting-from method resulted in higher amounts of deposited polymer and higher amounts of the enzyme. All polymer brush-modified surfaces showed preserved catalytic activity of the enzyme, but the grafting-from method resulted in twice the enzymatic activity compared to the grafting-to approach, demonstrating successful enzyme deposition on a solid support.
MACROMOLECULAR BIOSCIENCE
(2023)
Article
Engineering, Biomedical
Sadegh Ghorbani, Annette Christine Fuchtbauer, Andreas Mollebjerg, Pia Moller Martensen, Sara Hvidbjerg Laursen, David Christian Evar Kraft, Jorgen Kjems, Rikke Louise Meyer, Karim Rahimi, Morten Foss, Ernst-Martin Fuchtbauer, Duncan S. Sutherland
Summary: Biochemical and biomechanical signals in the niche environments regulate stem cell function. A study compared in vitro signals from LN-511 and/or topographic cues to maintain stemness in mESCs. The integration of LN-511 with nanotopography decreased colony growth but maintained stemness markers, suggesting the antagonistic effect of combining biochemical and topographic signals. Faster colony growth was observed at nanotopographies without LN-511, indicating improved ESC expansion.
Article
Materials Science, Coatings & Films
Andreas F. K. Korkel, Morten S. Jellesen, Morten Foss, Marcel Ceccato, Marcel A. J. Somers, Thomas L. Christiansen
Summary: This study investigates the controlled formation of white rutile surface layers on commercially pure titanium by gaseous thermochemical oxidation. The formed oxide layers were analyzed using various techniques, including microscopy, spectroscopy, and analysis of physical properties. The study finds that a two-step oxidation process results in the growth of robust, dense, adherent white titanium oxide layers. The first step involves oxidation in a CO/CO2 atmosphere, while the second step is performed in N2/N2O. Carbon is incorporated into the oxide layer during the first step and is then oxidized and removed during the second step, resulting in aesthetically pleasing white oxide layers.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Miguel A. Ramos-Docampo, Edit Brodszkij, Marcel Ceccato, Morten Foss, Mads Folkjaer, Nina Lock, Brigitte Stadler
Summary: This study introduces motors that utilize surface polymerization to achieve locomotion, mimicking the propulsion mechanism of microorganisms. By using mesoporous Janus particles, these motors exhibit enhanced Brownian motion and have the potential for various applications. Swarming behavior is observed in motors coated with atom-transfer radical polymerization initiators, while high-density Janus motors lose their ability to enhance Brownian motion.