Article
Chemistry, Analytical
Mohammad Beygi, William Dominguez-Viqueira, Chenyin Feng, Gokhan Mumcu, Christopher L. Frewin, Francesco La Via, Stephen E. Saddow
Summary: The study suggests that 3C-SiC material may effectively reduce MRI-induced heating and image artifacts in high field MRI, showing potential MRI compliance for neural implants.
Article
Chemistry, Multidisciplinary
Aaron Michelson, Honghu Zhang, Shuting Xiang, Oleg Gang
Summary: This study demonstrates a method for creating nanoengineered 3D SiC architectures using DNA-based self-assembly and templating processes, resulting in highly structured and spatially prescribed SiC nanoarchitectures with significant enhancements in electrical conductivity.
Review
Chemistry, Multidisciplinary
Byeongyun Jeong, Simanta Lahkar, Qi An, Kolan Madhav Reddy
Summary: Lightweight polycrystalline ceramics have promising physical, chemical, and mechanical properties. However, their coarse-grained structures make them brittle and low in fracture toughness. It has been discovered that nanocrystalline ceramics with soft interface phases or disordered structures can significantly enhance their mechanical properties.
Article
Physics, Applied
Hiroki Fujimoto, Takuma Kobayashi, Mitsuru Sometani, Mitsuo Okamoto, Takayoshi Shimura, Heiji Watanabe
Summary: The impact of NO nitridation on SiO2/SiC interfaces was studied and it was found that while nitridation can passivate electron traps, it also induces additional traps and increases the sensitivity to UV light.
APPLIED PHYSICS EXPRESS
(2022)
Article
Chemistry, Analytical
Chenyin Feng, Christopher L. Frewin, Md Rubayat-E Tanjil, Richard Everly, Jay Bieber, Ashok Kumar, Michael Cai Wang, Stephen E. Saddow
Summary: Carbon containing materials like graphene, carbon-nanotubes, and graphene oxide are promising electrodes for implantable neural interfaces due to their excellent conductive properties. However, the complex fabrication processes and issues with repeatability can be overcome by using pyrolyzed-photoresist-film (PPF) carbon electrodes combined with amorphous silicon carbide insulation. The electrodes show excellent electrochemical performance in oxygenated phosphate buffered solution, demonstrating potential for practical applications.
Article
Chemistry, Multidisciplinary
Florian Fallegger, Giuseppe Schiavone, Elvira Pirondini, Fabien B. Wagner, Nicolas Vachicouras, Ludovic Serex, Gregory Zegarek, Adrien May, Paul Constanthin, Marie Palma, Mehrdad Khoshnevis, Dirk Van Roost, Blaise Yvert, Gregoire Courtine, Karl Schaller, Jocelyne Bloch, Stephanie P. Lacour
Summary: The study introduces conformable subdural, thin-film ECoG grids leveraging soft neurotechnology with promising results in human cadaveric models and clinical magnetic resonance imaging. These soft grids offer foldability and good compatibility while showing no diagnostic-impeding artifacts or adverse effects during imaging.
Review
Chemistry, Multidisciplinary
Jing Hu, Yunlei Xianyu
Summary: The interaction between nanoparticles and plants significantly advances research fields such as nanotechnology, agriculture, food science, electrical engineering, and biomedicine. Nanoparticles can serve as growth regulators, pesticides, fertilizers, antimicrobial agents, biosensors, and plant mimics in plant studies. Plants, on the other hand, contribute to the development of nanotechnology by inspiring the preparation of nanoparticles and plant-inspired nanobionics.
Article
Chemistry, Physical
Shengtao Zhang, Hao Fu, Tie Li, Guofeng Fan, Lili Zhao
Summary: SiC substrates are prepared by the PVT method and face the problem of deteriorating growth conditions. The influence and change in the physical environment inside the thermal field have not been adequately researched. A simulation method was used to model SiC single crystal growth with different directions and rates. The study analyzed the variation of physical fields under different schemes, and found that the decay of raw materials is the primary reason for the deterioration of growth conditions. The results also showed that adjusting the position of the thermal field can achieve the desired crystal growth state.
Article
Chemistry, Multidisciplinary
Fengxuan Wang, Xiang Yang, Yongqiang Zhao, Jingmin Wu, Zhiyu Guo, Zhi He, Zhongchao Fan, Fuhua Yang
Summary: This study investigated the low-temperature direct bonding of SiC/Si through O-2 plasma activation. After optimization, a high bonding efficiency of over 90% was achieved. Surface activation was carried out through reactive ion etching (RIE) O-2 plasma without causing significant damage. A smooth and void-free interface was observed, along with a significant amorphous oxide layer. By increasing the annealing temperature, the thickness of the amorphous layer decreased significantly. The mechanism of SiC/Si low-temperature plasma-activated bonding was discussed based on systematic experiments and analysis.
APPLIED SCIENCES-BASEL
(2022)
Review
Chemistry, Multidisciplinary
Goeun Park, Hanbin Park, Sang-Chan Park, Moonbong Jang, Jinho Yoon, Jae-Hyuk Ahn, Taek Lee
Summary: Zika virus (ZIKV) and dengue virus (DENV) infections are becoming more common due to global warming. Accurate diagnosis is essential for controlling these viral infections. Recent research has focused on developing biosensors for the accurate diagnosis of ZIKV and DENV using DNA nanotechnology. These biosensors offer advantages over traditional diagnostic methods, such as PCR and ELISA. DNA can serve as a bioreceptor and be easily modified with functional groups, making it a valuable tool for the development of specific bioreceptors that bind to viral proteins or nucleic acids. This review discusses advances in DNA-nanotechnology-based biosensors for the detection of ZIKV and DENV.
Article
Chemistry, Physical
Jing Du, Runliang Zhu, Qingze Chen, Jieyang Xie, Haiyang Xian, Junping Zhang, Jianxi Zhu
Summary: A mechanically stable silicon carbide-reinforced silicon (Si/SiC) material was designed through a facile molten salt-assisted magnesiothermic reduction method to prevent fractures of electrode materials in lithium-ion batteries (LIBs). Si/SiC showed enhanced cycling performance due to the incorporation of SiC nanoparticles, a robust interface structure, and a hierarchical pore structure. When paired with LiCoO2 cathode, the full cell exhibited a high capacity of 148mAh/g after 100 cycles at 0.5C.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Shengtao Zhang, Guofeng Fan, Tie Li, Lili Zhao
Summary: By modeling and optimizing the physical fields in the SiC crystal growth process with the numerical simulation software Virtual Reactor, high-quality and large-sized SiC crystals were successfully prepared. This is of great importance for the application of SiC in the new energy industry.
Article
Materials Science, Ceramics
Krystian Sokolowski, Izabela Pszczola, Stanislaw Blazewicz, Andrzej Bernasik, Kamil Kornaus, Aneta Fraczek-Szczypta
Summary: The purpose of the study was to determine the conditions for preparing CF to obtain carbide composites with favorable mechanical response. The study investigated the relationship between the interfacial properties of fiber/polymethylsiloxane composites and the mechanical properties of resulting fiber/carbide composites. The CF/resin interfacial strength was modified using different methods, and the study revealed different bonding characteristics at the fiber/resin and fiber/ceramics interfaces. Silanization of CF significantly improved the interfacial shear strength, while reducing the flexural properties of the carbide composites. The most promising treatment method for CF in PIP-based ceramic composites was modification with PyC, which resulted in enhanced interfacial shear strength, flexural strength, and work to fracture compared to unmodified CF.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Analytical
Wei Du, Lucas Miller, Feng Zhao
Summary: A new waveguide-based surface plasmon resonance (SPR) sensor with a graphene cover layer, a gold thin film, and a silicon carbide waveguide layer has been proposed and investigated for improved sensitivity in visible and near-infrared wavelength ranges. The study found that increasing the number of graphene layers significantly enhanced the sensor's sensitivity, making it promising for various chemical and biological sensing applications.
Article
Chemistry, Multidisciplinary
Guanglei Zhong, Xuejian Xie, Desheng Wang, Xinglong Wang, Li Sun, Xianglong Yang, Yan Peng, Xiufang Chen, Xiaobo Hu, Xiangang Xu
Summary: A novel Al doping method using p-type SiC powder was proposed for the growth of p-type SiC crystals. The continuity and utilization rate of Al element were greatly improved by using p-type SiC powder, leading to a significant reduction in resistivity and improvement in resistivity uniformity of the crystals.
Article
Chemistry, Analytical
Mohammad Beygi, John T. Bentley, Christopher L. Frewin, Cary A. Kuliasha, Arash Takshi, Evans K. Bernardin, Francesco La Via, Stephen E. Saddow
Editorial Material
Chemistry, Analytical
Stephen E. Saddow, Daniel Alquier, Jing Wang, Francesco LaVia, Mariana Fraga
Article
Chemistry, Analytical
Mohammad Beygi, William Dominguez-Viqueira, Chenyin Feng, Gokhan Mumcu, Christopher L. Frewin, Francesco La Via, Stephen E. Saddow
Summary: The study suggests that 3C-SiC material may effectively reduce MRI-induced heating and image artifacts in high field MRI, showing potential MRI compliance for neural implants.
Article
Engineering, Electrical & Electronic
Tiffany C. Miller, Salvatore Domenic Morgera, Stephen E. Saddow, Arash Takshi, Matthew Palm
Summary: Electronic nose technology shows potential in slowing the spread of contagious diseases by rapidly indicating signals. It can detect changes associated with disease pathogenesis and provide a possible method for exhaled breath analysis, with applications in virus detection, agriculture, and homeland security.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Analytical
Chenyin Feng, Christopher L. Frewin, Md Rubayat-E Tanjil, Richard Everly, Jay Bieber, Ashok Kumar, Michael Cai Wang, Stephen E. Saddow
Summary: Carbon containing materials like graphene, carbon-nanotubes, and graphene oxide are promising electrodes for implantable neural interfaces due to their excellent conductive properties. However, the complex fabrication processes and issues with repeatability can be overcome by using pyrolyzed-photoresist-film (PPF) carbon electrodes combined with amorphous silicon carbide insulation. The electrodes show excellent electrochemical performance in oxygenated phosphate buffered solution, demonstrating potential for practical applications.
Review
Chemistry, Analytical
Francesco La Via, Daniel Alquier, Filippo Giannazzo, Tsunenobu Kimoto, Philip Neudeck, Haiyan Ou, Alberto Roncaglia, Stephen E. E. Saddow, Salvatore Tudisco
Summary: In recent years, SiC has seen new applications proposed in various fields. This review discusses the development status, main challenges, and future prospects of several emerging SiC applications. The paper extensively reviews the use of SiC in high temperature space applications, high temperature CMOS, high radiation hard detectors, new optical devices, high frequency MEMS, devices with integrated 2D materials, and biosensors. The development of these applications, particularly in the 4H-SiC ones, has been facilitated by advancements in SiC technology and improvements in material quality and price. However, further development in these fields requires the development of new processes and improvement in material properties. In the case of 3C-SiC applications, despite the performance of the devices and their potential market, the lack of material and specific processes development, as well as the limited availability of SiC foundries, hamper further progress.