Article
Chemistry, Multidisciplinary
Szabolcs Czene, Nikoletta Jegenyes, Olga Krafcsik, Sandor Lenk, Zsolt Czigany, Gabor Bortel, Katalin Kamaras, Janos Rohonczy, David Beke, Adam Gali
Summary: Silicon carbide nanoparticles (SiC NPs) are potential inorganic molecular-sized fluorescent biomarkers, and researchers have developed a method to directly introduce amino groups into aqueous SiC NPs. The applicability of amino-terminated SiC NPs is demonstrated by attaching bovine serum albumin, and it is found that the fluorescence intensity is highly sensitive to surface termination, which may have implications for nanometer-sized SiC NPs with optically read electron spins.
Article
Materials Science, Ceramics
Chuchu Guo, Laifei Cheng, Fang Ye
Summary: An isotropic SiC nanowire preform with a cross-linked structure was prepared via in-situ synthesis method, showing high purity, adjustable crystallinity and volume fraction. The preform has low-density, rigid structure and excellent microwave absorption performance, making it a promising candidate for CMCs combining structure and functional performance.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Tao Li, Yulei Zhang, Jian Zhang, Yanqin Fu, Jie Li
Summary: A SiO2-SiC reticulated layer with SiC nanowires was pre-prepared on C/C composites to improve oxidation resistance and alleviate siliconization erosion during SiC coating preparation, resulting in a compact and homogeneous SiC coating.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Review
Chemistry, Multidisciplinary
Samuel Ahoulou, Etienne Perret, Jean-Marie Nedelec
Summary: Silicon nanowires are attractive materials due to their high surface-to-volume ratio and unique electrical properties, which can be further enhanced by adjusting surface properties with organic/inorganic compounds. This review provides an overview of techniques for modifying silicon nanowire surfaces and characterizing them, highlighting the potential advantages in sensing applications and chipless tag RFID technology. Future opportunities for functionalized silicon nanowires in RFID are also discussed.
Article
Physics, Multidisciplinary
Masashi Kaneshige, Hideo Kohno
Summary: Transmission electron microscopy was used to determine the spatially resolved probabilities of stacking fault formation along the growth axis of SiC nanowires. The analysis revealed that the probability changed during nanowire growth, most likely due to changes in growth temperature and/or supersaturation of the source materials vapor. Additionally, Y-shaped side-by-side nanowire pairs showed significant decreases at the junctions, presumably due to stress and/or distortion effects.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2023)
Article
Materials Science, Multidisciplinary
Weidong Li, Meng Zhang, Zhenjiang Li
Summary: Cerium-doped SiC nanowires were successfully synthesized by chemical vapor reaction method, and the characterization showed structural changes after Ce doping. Ce doping had significant effects on properties such as energy gap, Ce content, and turn-on field.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Dongliang Ding, Shiyu Zhang, Haoyu Liang, Xu Wang, Ya Wu, Yuanming Ye, Zhenguo Liu, Qiuyu Zhang, Guangzhao Qin, Yanhui Chen
Summary: This study reports a novel method to prepare highly through-plane thermally conductive silicone rubber composites with vertically aligned silicon carbide fibers and nanowires network. The composites achieved a high through-plane thermal conductivity of 2.13 W/(m.K) at 15% filler loading, with good electrical insulation performance and dimensional stability.
Article
Materials Science, Ceramics
Lan Zhang, Shuquan Yang, Meihui Xiao, Lin Chen, Jun Sun, Jianjun Ding, Xiaoxiao Li, Yi Gong, Kang Zheng, Xian Zhang, Xingyou Tian
Summary: In this study, the performance of a low-temperature sintered Bi-B-Si-Zn-Al glass/Al2O3/SiC nanowires composite fabricated by the tape casting method was investigated. The addition of 0.5 wt% SiC nanowires increased the thermal conductivity of the composite, and it also exhibited low thermal expansion and high dielectric constant.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Kuan-Yu Chen, Prabhat K. Tripathy, Kunal Mondal, Hongliang Zhang, Adrien Couet, Joseph B. Andrews
Summary: Silicon carbide nanowires (SiC NWs) have the potential to enable the development of solution-processable electronics in harsh environments. The use of nanoscale SiC allows for dispersion in liquid solvents while retaining the resilience of bulk SiC. This study demonstrates the fabrication of SiC NW Schottky diodes and investigates their performance under elevated temperatures and proton irradiation, showing high-temperature tolerance and irradiation resistance.
Article
Biophysics
Yousra Benserhir, Anne-Claire Salauen, Florence Geneste, Nolwenn Oliviero, Laurent Pichon, Anne Jolivet-Gougeon
Summary: This study developed a highly sensitive bacterial sensor based on networks of silicon nanowires for the detection of Escherichia coli. The sensor utilizes the interaction between bacteria and the nanowires to achieve detection. The high specificity of the sensor is achieved through chemical functionalization of the nanowires. This sensor is highly sensitive, low-cost, and compatible with traditional silicon technology, making it a potential alternative tool for real-time bacterial detection.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Aya Gomaa Abdelkader Mohamed, Xiang Zhang, Yaobing Wang
Summary: SiC nanowire arrays were successfully synthesized using a simple and cost-effective method, showing potential for photoelectrocatalytic oxygen evolution reaction. The research provides new possibilities for practical applications of SiC-based nanostructures in the field of photoelectrochemistry.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Biochemistry & Molecular Biology
Maria Jose Lo Faro, Ileana Ielo, Dario Morganti, Antonio Alessio Leonardi, Sabrina Conoci, Barbara Fazio, Giovanna De Luca, Alessia Irrera
Summary: This paper reports on the decoration of ultrathin silicon nanowires with gold nanoparticles for surface-enhanced Raman scattering applications. The results show that the decorated nanowires exhibit high enhancement effects after different surface functionalizations.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Nanoscience & Nanotechnology
Gwendolyn Jia Hao Lim, Zeshi Yang, Yi Hou, Pon Janani Sugumaran, Zhi Qiao, Jun Ding, Wentao Yan, Yong Yang
Summary: This study demonstrates the well-controlled alignment of silicon carbide nanowires (SiCNW) in a silicone matrix using direct ink writing (DIW)-based 3D printing. The optimized alignment leads to a significant improvement in both reflection loss (RL) and effective attenuation bandwidth (EAB). DIW can play an important role in materials design for high-efficiency microwave attenuation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Viraj Bhingardive, Guillaume Le Saux, Avishay Edri, Angel Porgador, Mark Schvartzman
Summary: The cytotoxic activity of natural killer cells is regulated by various chemical and physical cues, with a newly engineered platform based on nanowires revealing how spatial heterogeneity affects NK cell function. The platform demonstrates the tunability of NK cell cytotoxicity, offering insights into their immune function and potential applications in immunotherapy.
Article
Chemistry, Multidisciplinary
Ji-Yang Zhou, Qiang Li, Zhi-He Hao, Wu-Xi Lin, Zhen-Xuan He, Rui-Jian Liang, Liping Guo, Hao Li, Lixing You, Jian-Shun Tang, Jin-Shi Xu, Chuan-Feng Li, Guang-Can Guo
Summary: Optically addressable spin defects in silicon carbide (SiC) have been enhanced in brightness and spin-control strength using surface plasmons generated by gold film coplanar waveguides. The mechanism of the plasmonic-enhanced effect has been studied by tuning the distance between defects and the gold film surface. A three-energy-level model is used to determine the corresponding transition rates and lifetime measurements verify the coupling between defects and surface plasmons. This low-cost scheme can be applied to other spin defects in different materials, promoting the development of spin-defect-based quantum applications in SiC materials.
Article
Chemistry, Multidisciplinary
Gaia Ciampalini, Filippo Fabbri, Guido Menichetti, Luca Buoni, Simona Pace, Vaidotas Miseikis, Alessandro Pitanti, Dario Pisignano, Camilla Coletti, Alessandro Tredicucci, Stefano Roddaro
Summary: The conducting properties of graphene-MoS2 heterojunction were investigated, revealing a suppression of transport on the n-side of the transconductance curve due to trapping by sulfur vacancies, which counterintuitively depends on the field effect.
Article
Chemistry, Multidisciplinary
M. Negri, L. Francaviglia, D. Kaplan, V Swaminathan, G. Salviati, A. Fontcuberta i Morral, F. Fabbri
Summary: This study demonstrates the excitonic absorption and cathodoluminescence emission of MoS2 micro-pyramids grown on SiO2 substrates by CVD. By utilizing CL emission, defect intra-gap states related to the pyramid edges were detected, with enhanced intensity observed at the pyramid basal vertices. Analysis of photoluminescence and absorption provided insights into the optical functionality of MoS2 pyramids, suggesting potential applications for other 3D structures within the 2D materials family.
Article
Chemistry, Physical
Lorenzo Peri, Domenic Prete, Valeria Demontis, Valentina Zannier, Francesca Rossi, Lucia Sorba, Fabio Beltram, Francesco Rossella
Summary: In this study, a significant reduction in thermal conductivity in III-V semiconductor nanowires was achieved by introducing periodic crystal-lattice twin planes. These twinning superlattice nanowires exhibited improved thermoelectric properties, making them promising nanomaterials for high-efficiency thermoelectric energy harvesting.
Article
Nanoscience & Nanotechnology
Emilia Benvenuti, Giuseppe Portale, Marco Brucale, Santiago D. Quiroga, Matteo Baldoni, Roderick C. I. MacKenzie, Francesco Mercuri, Sofia Canola, Fabrizia Negri, Nicolo Lago, Marco Buonomo, Andrea Pollesel, Andrea Cester, Massimo Zambianchi, Manuela Melucci, Michele Muccini, Stefano Toffanin
Summary: A study on organic field-effect transistors (OFETs) reveals that the out-of-plane domain size and crystallite orientation in the vertical direction have a direct correlation with charge mobility and source-drain current. Polycrystalline films with a 3D molecular architecture provide the best electrical and optoelectronic characteristics, highlighting the importance of molecular orientational order in achieving optimum device performance.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Omer Arif, Valentina Zannier, Francesca Rossi, Diego De Matteis, Katharina Kress, Marta De Luca, Ilaria Zardo, Lucia Sorba
Summary: Nanowire geometry offers the possibility of obtaining semiconductor heterostructures that are not achievable in planar systems, allowing for the exploration of new optical transitions and vibrational properties. High-quality superlattice nanowires have shown improved thermoelectric properties and the potential for engineering photonic and phononic properties at the nanoscale.
Article
Optics
Matteo L. Zaffalon, Francesca Cova, Mingming Liu, Alessia Cemmi, Ilaria Di Sarcina, Francesca Rossi, Francesco Carulli, Andrea Erroi, Carmelita Roda, Jacopo Perego, Angiolina Comotti, Mauro Fasoli, Francesco Meinardi, Liang Li, Anna Vedda, Sergio Brovelli
Summary: Radiation detection is crucial in various fields, and CsPbBr3 nanocrystals have shown exceptional radiation hardness under high doses of radiation. By fluorination treatment, the scintillation efficiency of CsPbBr3 has been significantly enhanced, while maintaining high radiation hardness.
Article
Materials Science, Multidisciplinary
Luca Basta, Federica Bianco, Aldo Moscardini, Filippo Fabbri, Luca Bellucci, Valentina Tozzini, Stefan Heun, Stefano Veronesi
Summary: Spatially-resolved organic functionalization of monolayer graphene is achieved via low-energy electron beam irradiation, resulting in a local increase of the graphene chemical reactivity. The functionalization pattern is designed in a well-controlled way by creating structural defects using electron beam irradiation. The spatial distribution of the defects is investigated using atomic force microscopy and their effects on the graphene are studied using Raman spectroscopy and simulations.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Marco Agnes, Arianna Mazza, Eszter Kalydi, Szabolcs Beni, Milo Malanga, Ilse Manet
Summary: By selectively irradiating Methylene Blue, a low-cost photocatalyst, four aromatic substrates were optimized to produce their corresponding endoperoxides in organic solvent. By combining hydrophobic substrates with a hydrophilic cyclodextrin (CyD) polymer, their photooxygenation in homogeneous aqueous environment was achieved. These results have potential applications in green homogeneous photocatalysis and delivery of oxygen releasing agents to tissues.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Federica Bianco, Emilio Corte, Sviatoslav Ditalia Tchernij, Jacopo Forneris, Filippo Fabbri
Summary: Recently, hBN has gained attention in quantum optics due to its unique defect-related luminescence properties. This study demonstrates the controlled engineering of multicolor radiative emissions in hBN through position-controlled low-energy electron irradiation. By varying the electron beam energy and/or area dose, different light emissions at various wavelengths in the green-red range can be induced. The results show that different electron beam energy levels (10 keV, 20 keV, and 15 keV) lead to orange-red and green emission bands. The increase in cumulative dose density indicates the presence of a threshold value, beyond which non-radiative recombination pathways are generated.
Article
Pharmacology & Pharmacy
Elisa Martella, Barbara Dozza, Claudia Ferroni, Chiara Bellotti, Clement Osuru Obeyok, Matilde Tubertini, Andrea Guerrini, Marco Ballestri, Marta Columbaro, Ilse Manet, Marco Gambarotti, Lucia Martini, Milena Fini, Luca Cevolani, Davide Maria Donati, Enrico Lucarelli, Greta Varchi, Serena Duchi
Summary: This study evaluates the efficacy of chemo-releasing and photoactive bimodal nanoparticles, kPCe6 NPs, delivered via mesenchymal stromal cells (MSCs). In vitro analyses demonstrated that cells internalize and retain kPCe6 NPs in a dose-dependent manner, and kPCe6-loaded cells induce massive tumor cell death in a tridimensional tumor model. However, when peritumoral administration of two doses containing 10(6) loaded cells was performed in an in vivo OS murine model, there was negligible tumor cell death.
ADVANCED THERAPEUTICS
(2023)
Article
Chemistry, Physical
F. Esposito, M. Bosi, G. Attolini, F. Rossi, S. E. Panasci, P. Fiorenza, F. Giannazzo, F. Fabbri, L. Seravalli
Summary: The objective of this study was to compare MoS2 2-dimensional monolayer flakes grown by Chemical Vapour Deposition using different density gradients in the liquid precursors solution. The structures grown using glycerol showed a larger variability in the lateral size of the triangular structure with good crystalline quality, while structures grown using iodixanol exhibited poorer crystalline quality with nanometric pores and more homogeneous sizing of the triangular structures. The lower crystalline quality of iodixanol samples resulted in reduced light emission efficiency and lower mobility.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
L. Seravalli, F. Esposito, M. Bosi, L. Aversa, G. Trevisi, R. Verucchi, L. Lazzarini, F. Rossi, F. Fabbri
Summary: Strain engineering is an efficient tool for adjusting the electrical and optical properties of 2D materials. In this study, we found that the built-in strain in MoS2 monolayers grown on a SiO2/Si substrate is mainly dependent on the size of the monolayer. A critical size of 20 μm was identified, beyond which the built-in strain significantly increased. The maximum built-in strain was observed in a 60 μm sized monolayer, which resulted in 1.2% tensile strain with partial strain release near the triangular vertexes due to nanocrack formation. These findings suggest that the standard method for evaluating the number of layers based on Raman mode separation may be unreliable for highly strained monolayers with a lateral size above 20 μm.
Article
Chemistry, Multidisciplinary
Rania E. Morsi, Denis Gentili, Franco Corticelli, Vittorio Morandi, Alberto Figoli, Francesca Russo, Francesco Galiano, Giovanna Angela Gentilomi, Francesca Bonvicini, Ilse Manet, Barbara Ventura
Summary: The development of polymeric fabrics with photoinduced antibacterial activity is crucial for various applications. In this study, cellulose acetate membranes were prepared with the addition of additives, including a photosensitizer (TPP), a surfactant (Pluronic F-127), and graphene oxide (GO). The combination of these three additives exhibited excellent antibacterial properties.
Article
Engineering, Environmental
Sara Khaliha, Derek Jones, Alessandro Kovtun, Maria Luisa Navacchia, Massimo Zambianchi, Manuela Melucci, Vincenzo Palermo
Summary: In this study, we compared different materials in removing organic contaminants from water using Langmuir adsorption isotherms. We found that the removal efficiency reaches a limit at low concentrations and multi-step adsorption processes are more efficient than single-step adsorption with smaller amounts of adsorbent material. The concentration of the adsorbent strongly affects its performance. Furthermore, we emphasized the importance of reporting both Q(m) and K-L parameters for comparing materials tested under different experimental conditions in future work and reviews.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Elisabetta Pancani, Daniele Veclani, Marco Agnes, Arianna Mazza, Alessandro Venturini, Milo Malanga, Ilse Manet
Summary: This study explored a series of cyclodextrin (CyD) polymers for the simultaneous encapsulation of different compounds with potential therapeutic interest for multimodal prostate cancer treatment. The co-encapsulation of three compounds, cabazitaxel, bicalutamide, and chlorin e6, was successfully achieved in certain CyD polymers. The p beta CyD performed best in drug solubilization ability, and Ce6 was able to efficiently produce singlet oxygen when encapsulated.
