Article
Engineering, Biomedical
Aldo Tecse, Stefano E. Romero, Roozbeh Naemi, Benjamin Castaneda
Summary: This study aimed to develop a validated method for characterizing the viscoelastic properties of soft tissues based on ultrasound elastography data. The viscoelastic parameters were estimated and compared to mechanical test results. The results showed that the fractional-derivative models, especially the FD-KV and FD-Maxwell models, were more effective in simulating the viscoelastic behavior of plantar soft tissue. This study has important implications for assessing the function of soft tissue and can be used as markers for diagnosis or prognosis.
PHYSICS IN MEDICINE AND BIOLOGY
(2023)
Review
Nanoscience & Nanotechnology
Yue Pan, Ying Hao, Yao Xiao, Kun Shi, Ying Qu, ZhiYong Qian
Summary: Soft tissue augmentation is a method to restore lost tissue and boost confidence for patients. Injectable fillers have gained attention in facial cosmetic fields, and there is a high demand for improved fillers in the medical cosmetology market. This review introduces various fillers used in clinical settings and provides updates on recent advancements in injectable filling materials, aiming to contribute to further developments in the field.
JOURNAL OF BIOMEDICAL NANOTECHNOLOGY
(2021)
Article
Instruments & Instrumentation
Dino Simic, Andrej Lang, Manfred Klueppel
Summary: Magnetorheological elastomers have great potential for various technical applications. Soft magnetic fillers show higher switching-ability compared to hard magnetic fillers in anisotropic samples. The stress values and mechanical hysteresis are generally higher for anisotropic samples, but the energy harvesting ability seems to be independent of sample anisotropy.
SMART MATERIALS AND STRUCTURES
(2023)
Article
Polymer Science
Om Prakash Prabhakar, Raj Kumar Sahu
Summary: The effect of polyethylene glycol (PEG) flakes and titanium diborides (TB) particles on the electromechanical actuation performance of polydimethylsiloxane elastomer was investigated. Results show that the elastic modulus and relative permittivity are significantly influenced by filler contents. PEG fillers aid in maintaining low elastic modulus, whereas TB fillers increase electrical breakdown strength and dielectric loss.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Biomedical
Sedigheh S. Poul, Juvenal Ormachea, Gary R. Ge, Kevin J. Parker
Summary: Elastography researchers have utilized different rheological models to study the viscoelastic properties of soft tissues. However, it is unclear which model should be widely adopted within a theoretical framework. This study evaluated the performance of three rheological models on ex vivo bovine liver tissues and found that the KVFD model provided the most accurate representation of time and frequency data, and predicted the viscoelastic behavior of the liver accurately.
ACTA BIOMATERIALIA
(2022)
Article
Materials Science, Multidisciplinary
Junbo Sun, Yufei Wang, Kefei Li, Xupei Yao, Binrong Zhu, Jiaqing Wang, Qianqian Dong, Xiangyu Wang
Summary: Conductive fillers play an important role in the design of electrically conductive cementitious composites, and the chemical components of the fillers influence the strength and electrical resistance of the materials. This study investigates the interfacial properties of graphite particles, steel slags, and ground granulated blast furnace slag in the composites at the molecular level, and proposes a hybrid mixing design to balance the mechanical and conductive performance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Surgery
Won Lee, Ik-Soo Koh, Kyung Min Kim, Ki Hyun Kim, Seong Hwan Kim
Summary: This study evaluated the maintenance of the lifting effect of hyaluronic acid filler injection and found that the filler showed good maintenance in the forehead, temple area, nose, chin, nasojugal fold, and mid-cheek groove areas, while the nasolabial fold slightly improved. The appropriate rheological parameters of the filler should be considered before injection, as a good choice can result in a good aesthetic effect 1 year after injection.
AESTHETIC PLASTIC SURGERY
(2023)
Article
Polymer Science
Yang Feng, Shao-Cong Dai, Khoon Lim, Yogambha Ramaswamy, Ahmad Jabbarzadeh
Summary: Polymeric PVA-based composite hydrogels were fabricated with gellan gum (GG) and their rheological and tribological properties were investigated. Increasing the concentration of GG enhanced the storage modulus of the hydrogels, making them suitable for cartilage regeneration applications. Furthermore, the addition of GG reduced the friction coefficient, increasing the chance of survival under mechanical shear stresses.
Article
Chemistry, Physical
Eva Dieuzy, Garbine Aguirre, Stephane Auguste, Kamel Chougrani, Valerie Alard, Laurent Billon, Christophe Derail
Summary: This study reveals that the viscosity of microgels is influenced by the type and concentration of crosslinkers, with OEGDA-crosslinked microgels showing higher viscosity at high concentrations, while MBA-crosslinked microgels exhibit higher yield stress. Additionally, the microgel suspensions follow hard sphere models up to a certain effective volume fraction, and NMR measurements confirm the differences in crosslinking distribution between the two types of crosslinkers.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Green & Sustainable Science & Technology
Yinzhang He, Qinggang Wang, Jiupeng Zhang, Yan Li, Haiqi He, Guojing Huang
Summary: This study investigated the rheological properties and adhesion characteristics of foamed CRA binder. The optimal foaming conditions for different crumb rubber powder (CRP) content and foaming agent were determined. Dynamic shear rheometer (DSR) tests were carried out to evaluate the high temperature performance, temperature sensitivity, and viscoelastic characteristics of each asphalt binder sample before and after aging. The adhesion characteristics of each sample were evaluated using surface free energy theory. The results showed that increasing the CRP content improved the high temperature performance and adhesion of foamed CRA binder, while reducing its temperature sensitivity. Foaming agent B had an effect on the temperature sensitivity and high temperature performance, but not on adhesion.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Biochemistry & Molecular Biology
Ling Ding, Zhao Liu, Shen Song, Mohamed Aamer Abubaker, Lele Chen, Jipeng Shi, Zengjie Fan, Ji Zhang
Summary: HACC, synthesized by reacting chitosan with glycidyl trimethylammonium chloride, forms a non-Newtonian pseudoplastic fluid in solution, with thixotropy highly dependent on concentration changes. Dynamic viscoelasticity tests show that HACC exhibits both viscous behavior similar to a fluid and elastic properties of weak gel.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Biochemistry & Molecular Biology
Killian Flegeau, Jing Jing, Romain Brusini, Melanie Gallet, Capucine Moreno, Lee Walker, Francois Bourdon, Jimmy Faivre
Summary: In this study, a novel rheological procedure was used to evaluate the degradation kinetics of TEOSYAL RHA((R)) filler in contact with HAase. Mathematical analyses were developed to determine the optimal time between injections and number of enzymatic units for maximizing degradation kinetics.
Article
Polymer Science
Fatemeh Sheikh, Maryam Hasani, Hossein Kiani, Mohammad Javad Asadollahzadeh, Farzaneh Sabbagh
Summary: In this study, gelatin-based composite gels modified with sesame seed protein and oleosomes were examined for their viscoelastic and textural properties. The addition of oleosomes resulted in an increase in the storage modulus, loss modulus, and complex viscosity of the gels. The composite gels with a higher percentage of oleosomes showed solid behavior and exhibited potential applications in various food products.
Article
Chemistry, Physical
Piotr Boruszewski, Piotr Borysiuk, Agnieszka Jankowska, Jolanta Pazik
Summary: Reducing the density of particleboards for use in the furniture industry by using expanded polystyrene and microspheres as modifiers has been studied in this paper. The results showed that the use of EPS had the most satisfactory effect, and further research on using Expancel-type fillers is recommended. The novelty of this research lies in using previously unused microspheres as fillers in wood-based panels.
Article
Immunology
Lin Qi, Ruiling Xu, Xiaolei Ren, Wenchao Zhang, Zhimin Yang, Chao Tu, Zhihong Li
Summary: This study identified necroptosis-related genes (NRGs) in soft tissue sarcomas (STSs) and found their potential role in prognosis. The results showed that the risk score based on the necroptosis-related gene signature could serve as an independent prognostic factor and could also predict immune infiltration. Furthermore, the necroptosis-related gene signature was validated in other malignancies, indicating its potential as a prognostic indicator in different types of cancer.
FRONTIERS IN IMMUNOLOGY
(2022)
