Article
Materials Science, Composites
Ayse Cagil Kandemir, Fatma Donmez, Hatice Kaplan Can
Summary: This study focuses on achieving mechanical enhancements in biocompatible organic coatings by using solvent-based method to produce biocompatible nanocomposites. The addition of bentonite nanoclays as constituents leads to significant improvements in mechanical properties. The increase in volume fraction of bentonite nanoclays is primarily responsible for the considerable enhancements in hardness and modulus values.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Physical
A. Rodriguez, M. S. Jaman, O. Acikgoz, B. Wang, J. Yu, P. G. Grutzmacher, A. Rosenkranz, M. Z. Baykara
Summary: Ti3C2Tx nano-sheets exhibit solid lubrication properties on the nanoscale, reducing friction on silicon dioxide substrates, although not as effectively as few-layer graphene. This paves the way for further investigations into nanoscale solid lubrication achieved by Ti3C2Tx (MXene) nano-sheets.
APPLIED SURFACE SCIENCE
(2021)
Article
Dermatology
Laura Prigent, Perrine Mercier-Gouy, Simone Bovio, Alexandre Aubert, Sophie Liot, Elise Lambert, Ulrich Valcourt
Summary: An in-depth understanding of the mechanical properties of the dermis is crucial for wound healing and skin aging. However, little is known about the nanoscale mechanical behavior of the dermis. This study measures the mechanical properties of mouse dermis and finds differences between female and male dermis samples, as well as changes with depth in male dermis. The findings highlight the importance of considering sex-related cutaneous differences to improve dermatological treatments and cosmetic interventions.
EXPERIMENTAL DERMATOLOGY
(2023)
Review
Engineering, Biomedical
Karan Gulati, Taiji Adachi
Summary: Surface modification of implants in the nanoscale or implant nano-engineering has been recognized as an effective strategy for enhancing implant bioactivity and achieving long-term success. This review focuses on the characterization of nano-engineered implant surfaces using Atomic Force Microscopy (AFM) and the investigation of single-cell forces involved in cell adhesion to the implants using Single-Cell Force Spectroscopy (SCFS) via AFM. It provides valuable insights for researchers interested in implants and cell adhesion, and contributes to the understanding of surface characterization of nano-engineered implants.
ACTA BIOMATERIALIA
(2023)
Article
Engineering, Electrical & Electronic
Ryota Fukuzawa, Daichi Kobayashi, Takuji Takahashi
Summary: Electrostatic force microscopy (EFM) is used to examine the electrostatic force between an AFM tip and sample surface, allowing evaluation of their capacitance and surface potential. The dependences of the electrostatic force on dc voltage and ac voltage frequency can be used to investigate carrier density, carrier type, and deep-level states in a semiconductor. Proper distance control is necessary in EFM to ensure accurate measurements, and the oscillation amplitude of a cantilever can be effectively used for feedback control. The 1 A-mode operation in EFM shows good robustness against the strong electrostatic force and allows proper measurements of tip-sample capacitance.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Chemistry, Physical
Ryan M. Khan, Martin Rejhon, Yanxiao Li, Nitika Parashar, Elisa Riedo, Ryan R. Wixom, Frank W. DelRio, Remi Dingreville
Summary: As the field of low-dimensional materials continues to grow, there is a need for techniques to characterize the mechanical properties of these materials at the nanoscale. This paper presents a modulated nanomechanical measurement technique based on atomic-force microscopy, which enables non-destructive measurements of the elasticity of ultra-thin materials with high resolution. The technique is used to study the stiffness dependence of graphene thin films and discover a peak transverse modulus in two-layer graphene.
Article
Chemistry, Physical
Matthew D. Biviano, Lukas J. Boni, Joseph D. Berry, Peter Fischer, Raymond R. Dagastine
Summary: Hypothesis suggests that understanding interfacial rheology can provide insights into the mechanical properties of adsorption layers on liquid-liquid interfaces, impacting the stability of emulsion droplets. Experiments using AFM to probe the time-dependent interfacial rheological behavior compared results with established techniques like ISR and dilational pendant drop tensiometry, revealing differences in viscoelastic moduli due to varying flow fields and deformation levels.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Paolo Pellegrino, Isabella Farella, Mariafrancesca Cascione, Valeria De Matteis, Alessandro Paolo Bramanti, Antonio Della Torre, Fabio Quaranta, Rosaria Rinaldi
Summary: In recent years, Atomic Force Microscope (AFM)-based nanolithography techniques have become increasingly powerful. However, conventional methods are inefficient, have low pattern formation rates, and are complex to execute. In this study, we developed a simple and effective nanopatterning technique called Pulse-Atomic Force Lithography (P-AFL), which enabled us to pattern 2.5D nanogrooves on a thin polymer layer with sub-nanometre resolution, high accuracy, and reproducibility. We investigated the effects of P-AFL parameters on the morphology of 2.5D nanostructures and optimized the nanolithography process to achieve unconventional shape nanostructures with high accuracy and fidelity.
Article
Chemistry, Multidisciplinary
Tianyao Zhang, Haibo Yu, Jialin Shi, Xiaoduo Wang, Hao Luo, Daojing Lin, Zhu Liu, Chanmin Su, Yuechao Wang, Lianqing Liu
Summary: This paper proposes an imaging method that combines atomic force microscopy with microlens-based scanning optical microscopy, which can achieve cross-scale rapid imaging and improve the efficiency of large-scale imaging and detection.
Article
Multidisciplinary Sciences
Satoru Tsugawa, Yuki Yamasaki, Shota Horiguchi, Tianhao Zhang, Takara Muto, Yosuke Nakaso, Kenshiro Ito, Ryu Takebayashi, Kazunori Okano, Eri Akita, Ryohei Yasukuni, Taku Demura, Tetsuro Mimura, Ken'ichi Kawaguchi, Yoichiroh Hosokawa
Summary: This study verifies the formula of elastic shell theory for onion cells using finite element method simulations. The research finds that the tension resulting from turgor pressure regulates cell stiffness, which can be modified by slight adjustments of turgor pressure.
SCIENTIFIC REPORTS
(2022)
Article
Construction & Building Technology
Amal Abdelaziz, Amy Epps Martin, Eyad Masad, Edith Arambula Mercado, Fawaz Kaseer
Summary: The use of reclaimed asphalt pavement (RAP) in road construction is beneficial to the environment and economy. However, recycling agents are necessary to improve the performance of the aged material. This study evaluates the effect of ageing and recycling agents on the properties of binder blends with high RAP contents.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Yalda Sabaghi, Farnaz Pourfarzad, Leila Zolghadr, Azita Bahrami, Tahereh Shojazadeh, Alireza Farasat, Nematollah Gheibi
Summary: p-Coumaric acid (p-CA) is a plant compound with anti-cancer activities. This study designed a nano-liposomal carrier containing p-CA to enhance its effectiveness against melanoma cells. The findings showed that the liposomal form of p-CA had a greater impact on the cells. Kinetic modeling indicated that the best fitting model was zero-order.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Yijie Liu, Xuexuan Li, Yuliang Zhang, Lin Ge, Yingchun Guan, Zhen Zhang
Summary: This study presents a novel approach, the ultra-large scale stitchless atomic force microscopy (ULSS-AFM), which combines a compliant nano-manipulator (CNM) to enable high-throughput characterization of an area of up to 1 x 1 mm(2). Experimental results demonstrate the effectiveness of the ULSS-AFM in different scanning ranges, modes, resolutions, and frequencies. Compared to conventional AFMs, this approach allows for the characterization of ultra-large scale samples without stitching or bow errors, expanding the scanning area of traditional AFMs by two orders of magnitude and opening up important avenues for cross-scale scientific research and industrial applications in nano- and microscale.
Article
Environmental Sciences
Vyacheslav S. Odintsov, Alexander A. Karpenko, Maxim A. Karpenko
Summary: The aim of this study was to investigate the biodegradation of stable plastics commonly used in medical prosthetics. The study involved selecting suitable marine organisms as subjects, developing methods to deliver microplastic particles to the gastrointestinal tract of experimental animals, and determining the degradation of the particles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Anatomy & Morphology
Ilya A. Morozov, Roman I. Izyumov
Summary: Reliable reconstruction of AFM tip geometry is challenging and requires a blind reconstruction method based on AFM image of a calibration sample. A proposed criterion for selecting the true shape is based on the reconstruction of the calibration relief. Further refinement of probe geometry can be achieved by indenting an elastic polymer, and the choice of a suitable test sample is also important.
MICROSCOPY RESEARCH AND TECHNIQUE
(2023)
Article
Polymer Science
Karmele del Teso Sanchez, Norman S. Allen, Christopher M. Liauw, Fernando Catalina, Teresa Corrales, Michelle Edge
POLYMER DEGRADATION AND STABILITY
(2015)
Article
Chemistry, Applied
A. Morro, F. Catalina, T. Corrales, J. L. Pablos, I. Marin, C. Abrusci
CARBOHYDRATE POLYMERS
(2016)
Article
Polymer Science
Paula A. Zapata, Andres Zenteno, Nicolas Amigo, Franco M. Rabagliati, Francisco Sepulveda, Fernando Catalina, Teresa Corrales
POLYMER DEGRADATION AND STABILITY
(2016)
Article
Chemistry, Applied
S. Fernandez-Alonso, T. Corrales, J. L. Pablos, F. Catalina
REACTIVE & FUNCTIONAL POLYMERS
(2016)
Article
Chemistry, Analytical
S. Fernandez-Alonso, T. Corrales, J. L. Pablos, F. Catalina
SENSORS AND ACTUATORS B-CHEMICAL
(2018)
Article
Biotechnology & Applied Microbiology
Gema Marcelo, Fernando Catalina, Ignacio J. Bruvera, Clara Marquina, Gerardo F. Goya
CURRENT NANOSCIENCE
(2014)
Article
Polymer Science
L. Lopez-Vilanova, I. Martinez, T. Corrales, F. Catalina
EUROPEAN POLYMER JOURNAL
(2014)
Article
Biotechnology & Applied Microbiology
C. Abrusci, J. L. Pablos, I. Marín, E. Espí, T. Corrales, F. Catalina
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2013)
Article
Polymer Science
Paula A. Zapata, Humberto Palza, Luis S. Cruz, Ingo Lieberwirth, Fernando Catalina, Teresa Corrales, Franco M. Rabagliati
Article
Polymer Science
Paula A. Zapata, Franco M. Rabagliati, Ingo Lieberwirth, Fernando Catalina, Teresa Corrales
POLYMER DEGRADATION AND STABILITY
(2014)
Article
Chemistry, Applied
L. Lopez-Vilanova, I. Martinez, T. Corrales, F. Catalina
REACTIVE & FUNCTIONAL POLYMERS
(2014)
Article
Chemistry, Analytical
Jesus L. Pablos, Esther Hernandez, Fernando Catalina, Teresa Corrales
Summary: Novel water-swollen photo-crosslinked membranes with pH sensitive fluorescence probes were synthesized and characterized. These membranes exhibited sensitive fluorescence changes and reversible behavior, making them suitable for acidity detection in aqueous environments.
Article
Biology
Jesus L. Pablos, Monica Cicuendez, Maria Hernandez-Rivas, Fernando Catalina, Maria Vallet-Regi, Teresa Corrales
Summary: The study focuses on the preparation of new biomaterials by blending PCL and PEC, and investigates their potential application in bone regeneration through in vitro biocompatibility tests. The characterization of the blends reveals that increasing the content of PEC improves the mechanical properties and hydrophilic character of the materials, which in turn leads to enhanced biological properties. The assessment of cell viability, proliferation, and differentiation demonstrates that the PCL/PEC blends exhibit favorable cell response for bone tissue regeneration. The results suggest that the PCL/PEC blends have the potential for in vivo testing and real-life application in bone regeneration.
Article
Engineering, Multidisciplinary
Andres Zenteno, Ingo Lieberwirth, Fernando Catalina, Teresa Corrales, Sichem Guerrero, Diego A. Vasco, Paula A. Zapata
COMPOSITES PART B-ENGINEERING
(2017)
Article
Polymer Science
Tetsu Sato, Mariko Takahashi, Takeshi Saito, Masahito Toyonaga, Itsuo Tanuma, Rie Yamada, Satoru Hosoda
Summary: An automatic evaluation system for photooxidation has been developed and successfully applied to assess the photo-OIT of LDPE samples containing photooxidation stabilizers. The system allows independent setting of various measurement conditions and provides detailed information on the photooxidation process.
POLYMER DEGRADATION AND STABILITY
(2024)
Article
Polymer Science
Zongzheng Zuo, Shuxue Zhou
Summary: In this study, three fluoroalkyl trimethoxysilane (FATMS) additives with different chain lengths were incorporated into a two-component polyurethane clearcoat to improve its hydrophobic durability. The coatings modified with FATMS maintained their surface hydrophobicity under various conditions, but quickly lost it when exposed to both UV irradiation and/or high temperature with water. The results suggest that the FATMS route is more suitable for indoor applications at room temperature.
POLYMER DEGRADATION AND STABILITY
(2024)
Article
Polymer Science
Song Li, Feng Zhao, Xueya Wang, Zhihua Liu, Jingze Guo, Yutong Li, Shuangmei Tan, Zhenxiang Xin, Shuai Zhao, Lin Li
Summary: Green flame retardants have garnered attention for their environmental friendliness, but current options fall short in achieving high flame retardancy for flammable polymers and maintaining environmental protection. This study takes a two-pronged approach to address flame retardants and the flame-retardant process. An eco-friendly bio-based synergistic flame retardant (PAU), synthesized using phytic acid (PA) and urea (U), is used to create a flame retardant coating that can be directly applied to any surface shape using polydopamine as an adhesive. The resulting EPS-PAU exhibits excellent flame retardancy, smoke suppression, and light weight while only slightly increasing the density.
POLYMER DEGRADATION AND STABILITY
(2024)
