Article
Materials Science, Multidisciplinary
Ping Yang, Yulin Chen, Jian Zhang, Baipo Shu
Summary: The study of the effect of carbon nanotubes (CNTs) on the electrodeposition of nickel is important for the preparation of CNTs/Ni composites. Different analysis methods were used to investigate the nucleation mechanism and properties of electrocrystallization. The results showed that increasing the CNTs concentration shortened the time required for 3D growth, improved the polarizability of electrodeposited nickel, and made the Ni nucleation easier. The introduction of CNTs also changed the growth orientation of pure nickel.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Majid Motalebian, Mohamad Mohsen Momeni, Byeong-Kyu Lee
Summary: Mo-doped, Cr-doped, and Mo-Cr co-doped titania nanotube arrays were synthesized through single step anodization of titanium. The Mo-Cr co-doped titania nanotubes showed a significant improvement in photo-catalytic activity for the protection of stainless steel under visible light irradiation. The addition of sulfur compounds as hole scavengers affected the photoelectrochemical properties and photoelectrochemical cathodic protection of the best Mo-Cr co-doped titania nanotubes, with sodium sulfide being the most suitable hole scavenger.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Mikail Olam, Nihat Tosun
Summary: The study developed PLA-based polymer composite filaments with TiO2, synthetic HA, and natural HA for biomedical applications. Analysis showed that the composites had good properties with a maximum operating temperature of around 300 degrees Celsius for 3D printing applications.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Ceramics
Rong Guo, Xinghui Hou, Dakui Zhao, Huili Wang, Caixin Shi, Ying Zhou
Summary: In this study, a freeze-drying method was used to synthesize a biologically active magnesium and strontium co-doped bioactive glass/chitosan composite scaffold. The as-prepared scaffold exhibited a three-dimensional honeycombed porous structure, and the porosity, pore size, swelling, and degradation rate could be controlled by adjusting the content of MSBG powders. The compressive modulus of the composite scaffold reached its maximum value when the mass ratio of MSBG to CS was 2:4. In vitro experiments demonstrated that MSBG greatly improved the generation capacity of hydroxyapatite in the composite scaffold, making it a promising candidate for bone tissue engineering.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Composites
Shuai Li, Gao Li, Jiqiang Hu, Bing Wang, Lianchao Wang, Hongbin Wang, Rui Chen, Zhengong Zhou
Summary: A novel porous P-PEEK-HA composite material was designed and fabricated, showing excellent potential for orthopedic applications due to its porous structure and biocompatibility.
COMPOSITES COMMUNICATIONS
(2021)
Article
Materials Science, Coatings & Films
Ika Maria Ulfah, Diah Ayu Fitriani, Siti Amalina Azahra, Aghni Ulma Saudi, Muhammad Kozin, Razie Hanafi, Prabowo Puranto, Bambang Sugeng, Yudi Nugraha Thaha, Aga Ridhova, Muhammad Prisla Kamil
Summary: Titanium dioxide nanotubes (TNTs) grown on the surface of titanium implants play a significant role in preventing tissue infection and implant failure. This study investigates the role of different counter electrodes in the formation of TNTs with varying shapes and surface properties. The use of platinum and graphite cathodes results in circular TNTs, while stainless steel cathode leads to hexagonal-shaped tubes with particle debris on the surface. The surface microstructure of TNTs affects their roughness, hydrophilicity, and ability to facilitate the growth of bone-forming apatite during osseointegration.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Physical
Sara Mohammad Moradi, Shahab Zangeneh, Shirin Vardak, Reza Bahrami
Summary: In this research, a novel antibacterial alloy was fabricated by adding copper and niobium to the conventional CCM alloy. The addition of niobium improved the wear resistance of the alloy, and the optimum alloy exhibited higher charge transfer resistance and better protein adsorption.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Applied
Y. Jimenez-Flores, K. Jimenez-Rangel, J. E. Samaniego-Benitez, L. Lartundo-Rojas, H. A. Calderon, R. Gomez, A. Mantilla
Summary: In this study, a novel g-C3N4/HAp composite photocatalyst was synthesized and characterized. The composite showed enhanced activity in the photocatalytic reduction of Cr (VI), which can be attributed to the synergistic effect between g-C3N4 and hydroxyapatite.
Article
Materials Science, Ceramics
Hongyu Zhao, Hongyu Xing, Qingguo Lai, Tianxiang Song, Xiaopeng Tang, Kaiwen Zhu, Yanwei Deng, Yun Zhao, Weihua Liu, Runqi Xue
Summary: In this study, columnar beta-Si3N4 and La3+/Y3+ sintering aid were utilized to prepare beta-Si3N4/HA composite biomaterials, which showed excellent mechanical properties and promoted adhesion, proliferation, and osteogenic differentiation of osteoblast. The concentration range of La3+ from 4x10(-8) M to 6 x 10(-8)M was beneficial to cell proliferation and osteogenic differentiation.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Jarnail Singh, Sukhpal Singh Chatha, Hazoor Singh
Summary: The study showed that with the increase of CS content in the HA coating, the corrosion resistance of HA-CS coatings improved. Additionally, surface roughness, porosity, microhardness and crystallinity increased with the increase of CS content in HA.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
H-thaichnok Chunate, Jirapon Khamwannah, Abdul Azeez Abdu Aliyu, Saran Tantavisut, Chedtha Puncreobutr, Atchara Khamkongkaeo, Chiraporn Tongyam, Krittima Tumkhanon, Thanawat Phetrattanarangsi, Theerapat Chanamuangkon, Torlarp Sitthiwanit, Dechawut Decha-umphai, Pharanroj Pongjirawish, Boonrat Lohwongwatana
Summary: This study aimed to synthesize Titania nanotubes (TNTs) for drug loading, evaluate the release of antibiotic drug, and assess the surface characteristics of the material. The results showed that the nanotubes exhibited excellent wetting properties and drug release performance.
Article
Chemistry, Physical
V Sudhisha, P. Agilan, P. Cheranmadevi, N. Rajendran
Summary: The study examined the effect of PEDOT incorporation on TNTA for its corrosion resistance and biocompatibility in orthopaedic application. The results showed that PEDOT/TNTA has potential application value.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Ruitao Zhang, Ting Yang, Suru Liu, Hao Wu, Jie Long, Li Xie
Summary: Due to the inefficiency of current treatment methods for peri-implantitis, a new electrochemical oxidation method was proposed to achieve complete plaque removal. The method involved anodizing the samples in fluoride electrolyte to form titanium dioxide nanotubes (TNT) at the biofilm-substrate interface, followed by abrasive blasting using glycine powder to remove both the nanotubes and biofilms. The TNT + AA method showed better cleaning potential and biocompatibility compared to the air-abrasion treatment, making it a promising approach for peri-implantitis treatment.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Energy & Fuels
Wei Tan, Joe C. Stallard, Changshin Jo, Michael F. L. De Volder, Norman A. Fleck
Summary: The study found that carbon nanotube-polyaniline composite electrodes exhibit excellent capacitance, modulus, and strength, showing potential as ideal candidates for structural energy storage devices. The modulus and strength of the electrode increase with the volume fraction of CNT, while the capacitance increases with the mass of PANI. However, charging or cycling can lead to a decrease in performance in terms of modulus, strength, and capacitance.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Nanoscience & Nanotechnology
Ke Wang, Justin Phelps, Reza Abdolvand, Jennifer Carter, Hoda Amani Hamedani
Summary: This study investigates the electrodeposition of zinc on nanoporous metal oxide titania nanotube arrays (TiO2 NTAs) using a zinc-containing deep eutectic solvent (Zn2+-DES). The morphology and electrochemical properties of the Zn/TiO2 NTAs were affected by substrate morphology and crystallinity, deposition temperature, zinc concentration, and deposition time. The electrodeposition resulted in the formation of two-dimensional zinc nanohexagons on the TiO2 NTAs. The Zn/TiO2 NTAs exhibited improved electrochemical properties and lower impedance, making them a promising material system for implantable electrochemical sensors.
ACS APPLIED NANO MATERIALS
(2023)
Article
Biodiversity Conservation
Ali Keyvanfar, Arezou Shafaghat, Nurhaizah Ismail, Sapura Mohamad, Hamidah Ahmad
Summary: This research developed the Urban Retention Pond Index (URPI) assessment model to evaluate the performance of multifunctional retention ponds on stormwater management. The ANP results indicated that soil investigation, soil retention, and infiltration rate significantly impact the performance of multifunctional retention ponds. Validation of the model at Boneyard Creek retention pond assigned a grade A, showing that the pond manages stormwater mainly through soil investigation, soil retention, and infiltration rate. Global Sensitivity Analysis (GSA) supported robust decision-making of the URPI model.
ECOLOGICAL INDICATORS
(2021)
Article
Engineering, Civil
Ali Keyvanfar, Arezou Shafaghat, Muhammad Akmal Awanghamat
Summary: The research identified optimal flying distance and environmental variables for drone photography, finding the best distance to be 30 meters and the best time for photography to be noon. The analysis of images using software like ICS and MATLAB showed high accuracy and completeness. The findings can assist construction professionals in calibrating their drone's flying variables for quality 3D modeling in construction progress monitoring.
INTERNATIONAL JOURNAL OF CIVIL ENGINEERING
(2022)
Article
Architecture
Ali Keyvanfar, Arezou Shafaghat, Muhamad S. F. Rosley
Summary: Unmanned aerial vehicle (UAV) technology has overcome the limitations of conventional construction management methods. Optimizing software-selection factors can generate quality 3D reconstruction models, and Autodesk Recap produces the most robust and highest-quality dense point clouds.
INTERNATIONAL JOURNAL OF ARCHITECTURAL COMPUTING
(2022)
Article
Architecture
Ali Keyvanfar, Arezou Shafaghat
Summary: The versatility of UAV technology has led to its wide application in various disciplines, especially in 3D modeling. The research found that UAV's 3D modeling has merged into multiple dimensions, with building measurement and quality management showing the highest growth rate.
ACE-ARCHITECTURE CITY AND ENVIRONMENT
(2022)
Article
Engineering, Civil
Ali Keyvanfar, Arezou Shafaghat, Muhd Zaimi Abd Majid
Summary: This study has developed an analysis framework to assess user satisfaction with cooling adaptive behaviors in green buildings. It allows architects and facility managers to understand user satisfaction and make improvements for lower energy consumption and better indoor environment.
INTERNATIONAL JOURNAL OF CIVIL ENGINEERING
(2022)
Article
Engineering, Civil
Ali Keyvanfar, Arezou Shafaghat, Noor Azliena Lieana Rosli
Summary: Urban rapid development has led to a lack of open spaces and outdoor learning environments for children. Urban plazas, with the integration of public art, can positively impact children's skills development. To address the need for a decision support tool in designing inclusive learning environments, the COUP Toolkit was developed. It helps professionals assess and evaluate the impact of urban plaza design on children's growth. The COUP Toolkit revealed that the Urban Oasis type of urban plaza contributes the most to children's skills development, and features like performance art, interactive instrument art, and spatial composition are vital in designing a children-oriented urban plaza.
JOURNAL OF URBAN PLANNING AND DEVELOPMENT
(2022)
Article
Green & Sustainable Science & Technology
A. Shafaghat, A. Keyvanfar
Summary: This study comprehensively investigates and identifies various types, technologies, and techniques of dynamic facades, comparing and synthesizing them against architectural design, structural engineering, and material science. The study finds that applying the concept of dynamic facades presents both challenges and opportunities for energy-efficient building design and low-emission development.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Green & Sustainable Science & Technology
Arezou Shafaghat, Salim Ferwati, Ali Keyvanfar
Summary: This study aimed to develop a COVID-19-adapted multi-functional corniche street design assessment model, which was validated through a case study in Dubai. The research identified the key variables and drivers of street design before and after the COVID-19 pandemic.
Article
Biodiversity Conservation
Arezou Shafaghat, Ali Keyvanfar, Chong Wui Ket
Summary: This study highlights the importance of wildlife corridors in mitigating habitat fragmentation and biodiversity degradation caused by urbanization. The study developed a WCDC index assessment model, which identified habitat preservation, species varieties control, and conduit for movement as critical factors in wildlife corridor design and conservation. The model was validated through a case study and ranked the evaluated site as Gold, indicating its effective preservation of mammal habitat.
JOURNAL FOR NATURE CONSERVATION
(2022)
