Silicon最新文献

{"title":"Polyhedral Oligomeric Silsesquioxane/Multiwalled Carbon Nanotube (MWCNT/POSS) Hybrid Filler in Ethylene-Propylene-Diene Monomer/Styrene-Butadiene Rubber (EPDM/SBR) Nanocomposites: Preparation and Properties","authors":"B. Dhanasakkaravarthi,&nbsp;S. Vishvanathperumal,&nbsp;S. Arunkumar,&nbsp;A. Arunkumar","doi":"10.1007/s12633-025-03360-1","DOIUrl":"10.1007/s12633-025-03360-1","url":null,"abstract":"<div><p>In this study, ethylene-propylene-diene monomer/styrene-butadiene rubber (EPDM/SBR) nanocomposites were prepared using a two-roll mill mixing method, incorporating a hybrid filler of polyhedral oligomeric silsesquioxane (POSS) and multiwalled carbon nanotubes (MWCNT). The composites were evaluated for their cure characteristics, mechanical properties, abrasion resistance, compression set, swelling resistance, and crosslinking density. The results indicated that as the hybrid filler content increased, minimum torque, maximum torque, delta torque, and cure rate index decreased, whereas scorch time and optimum cure time increased. Mechanical testing revealed that tensile strength and stress at 100% elongation improved up to a filler concentration of 4 phr but declined beyond this level. Hardness and tear strength showed a continuous increase with higher filler loading, while elongation at break and rebound resilience decreased. Additionally, compression set increased with rising filler content. Swelling resistance and abrasion resistance were optimized at 4 phr of hybrid filler but deteriorated when the filler concentration exceeded this threshold.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 11","pages":"2479 - 2497"},"PeriodicalIF":3.3,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Silicon-Based Composite Nanocarrier Material Enhancing AIE Sensing for Iron Ion Detection and Stroke Treatment","authors":"Dian Chen,&nbsp;Yueyang Yu,&nbsp;Jian Zhu","doi":"10.1007/s12633-025-03357-w","DOIUrl":"10.1007/s12633-025-03357-w","url":null,"abstract":"<div><p>Stroke, also known as cerebral apoplexy, is a severe cerebrovascular disease characterized by high incidence, high disability rates, and high mortality rates. It is caused by the sudden rupture or blockage of brain blood vessels, leading to insufficient blood flow and subsequent brain tissue damage. Chemokine ligand 4 (CCL4) is a pro-inflammatory mediator significantly upregulated after cerebral ischemia–reperfusion injury. It is secreted in large amounts by brain microvascular endothelial cells through autocrine mechanisms, thereby exacerbating inflammatory damage. In this study, we synthesized PDMS-CP1@Propofol and demonstrated its protective effects on brain microvascular endothelial cells by effectively alleviating CCL4-induced inflammation. CP1 was synthesized under solvothermal conditions as a novel coordination polymer (CP) containing Cu(II), [Cu(QDA)]·DMF (1, H₂QDA = quinoline-2,6-dicarboxylic acid, DMF = N,N-dimethylformamide). Structural analysis revealed a PtS topology with a CuO₄N distorted square pyramidal geometry, while molecular docking simulations showed that carboxyl oxygen atoms formed hydrogen bonds with Cu ions, whereas nitrogen atoms in quinoline rings coordinated with Cu ions without forming hydrogen bonds. These findings highlight the potential of PDMS-CP1@Propofol and Cu(II)-based coordination polymers as promising platforms for mitigating inflammatory responses and developing therapeutic strategies for stroke treatment.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 10","pages":"2447 - 2455"},"PeriodicalIF":3.3,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bioactive Glass from Eggshells and Silica Oxide Obtained by Mechanical Milling: Characterization and Bioactivity Tests","authors":"José Alfonso Rodríguez-Nañez,&nbsp;Elia Martha Múzquiz-Ramos,&nbsp;Jorge Carlos Ríos-Hurtado,&nbsp;Fatima Pamela Lara-Castillo,&nbsp;Alma Graciela Esmeralda-Gómez,&nbsp;Raúl Tadeo-Rosas","doi":"10.1007/s12633-025-03364-x","DOIUrl":"10.1007/s12633-025-03364-x","url":null,"abstract":"<div><p>This study details the synthesis and characterization of a bioactive and biocompatible bioglass designed for biomedical applications, particularly in the repair and regeneration of damaged bone tissue. The bioglass was synthesized by combining calcium oxide (CaO), sustainably sourced from eggshells, and silicon oxide (SiO₂), the latter produced using the Stöber method, which enables the production of silica particles with high purity, controlled size, and uniform morphology, essential characteristics for ensuring the material's bioactivity and stability. The synthesis of SiO₂ by this method involves the hydrolysis and condensation of precursors such as tetraethyl orthosilicate (TEOS) in an alcoholic medium with ammonia as a catalyst. The combination of these materials was carried out using mechanical milling and melting processes. Mechanical milling, conducted for 6 h, improved the mixture homogeneity, reduced particle size, and lowered the material's melting temperature, facilitating its processing. The synthesized bioglass was characterized using advanced analytical techniques, including Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), and X-ray Diffraction (XRD). The bioactivity was evaluated by immersion in simulated body fluid (SBF), and the results indicated the formation of calcium phosphates, confirming the material bioactivity and its potential for favorable interactions with biological tissues post-implantation. Additionally, a cytotoxicity assay was performed using the MTT method, in which the bioglass dispersed in a polymeric matrix was evaluated. The results demonstrated biocompatibility starting from the seventh day of cell contact, evidencing cell viability and the absence of significant cytotoxic effects. This research highlights the importance of integrating natural and synthetic sources in biomaterial development, emphasizing the key role of mechanical milling, melting, and the use of high-purity SiO₂ in optimizing the properties of bioglass for biomedical applications.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 11","pages":"2469 - 2478"},"PeriodicalIF":3.3,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to: Click Chemistry Synthesis of Tetrazole linked Organosilanes and Organosilatranes: A computational Evaluation of Pharmacokinetics, Bioactivity, and Acetylcholinesterase (AChE) Inhibition for Alzheimer’s Treatment","authors":"Gurjaspreet Singh,&nbsp;Jasbhinder Singh,&nbsp; Priyanka,&nbsp;Sofia Gupta,&nbsp;Akshpreet Singh,&nbsp; Mohit,&nbsp; Mithun,&nbsp;Harshbir Kaur,&nbsp;Sumesh Khurana,&nbsp;Pooja Malik","doi":"10.1007/s12633-025-03356-x","DOIUrl":"10.1007/s12633-025-03356-x","url":null,"abstract":"","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 9","pages":"2223 - 2223"},"PeriodicalIF":3.3,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to: Quantification of the Impact of Hexagonal Percentage on the Elastic and Acoustic Properties of SiC polytypes (3 C, 10H, 8H, 6H and 4H)","authors":"Souheyr Guernoub,&nbsp;Ibtissem Touati,&nbsp;Assia Khoualdia,&nbsp;Houssem-eddine Doghmane,&nbsp;Abdellaziz Doghmane","doi":"10.1007/s12633-025-03355-y","DOIUrl":"10.1007/s12633-025-03355-y","url":null,"abstract":"","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 9","pages":"2027 - 2027"},"PeriodicalIF":3.3,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electromagnetic Characterization of a Wideband Nanoscale Metamaterial Absorber for Ultraviolet Radiation Shielding","authors":"Md. Imtiaz Uddin,&nbsp;Mahjabin Mobarak,&nbsp;Samia Larguech,&nbsp;Md. Moniruzzaman,&nbsp;Samir Salem Al-Bawri","doi":"10.1007/s12633-025-03345-0","DOIUrl":"10.1007/s12633-025-03345-0","url":null,"abstract":"<div><p>In this article, a new metamaterial absorber (MMA) structure is presented with the nanoscale feature that operates in the ultraviolet frequency spectrum. The presented MMA is constructed on a Silicon (Si) substrate where Gold (Au) is used as the resonator as well as the backplane. The overall structural dimension of the proposed MMA cell is 0.1λ_max × 0.1λ_max, where λ_max represents the maximum wavelength at a lower cut-off frequency of 750 THz. The newly designed resonating patch provides an average absorption of 85% within a bandwidth of 750 THz to 900 THz with a peak absorption of above 99%. The absorption scenario is stable up to 90° for incident and polarization angle variations. Moreover, the proposed MMA exhibits almost zero polarization conversion ratio (PCR) and provides similar absorption spectra considering co and cross-polarized radiations. The MMA exhibits a good shielding effectiveness of 34.27 dB (maximum) which makes it effective for shielding ultraviolet (UV) radiation. As the design has a wide bandwidth of absorption and a near unity absorption, this compact and stable metamaterial absorber can be suitable for many applications such as for radiation shielding to avoid the harmful effects of ultraviolet radiation on living bodies, air, and water purification by leveraging germicidal characteristics of UV radiation, increasing efficiency of solar devices incorporating UV light absorption.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 10","pages":"2429 - 2446"},"PeriodicalIF":3.3,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication and Characterization of Porous Biochar and Si3N4 Bioceramic Toughened Natural Fibre Epoxy Composite","authors":"E. Manoj,&nbsp;G. Selvakumar,&nbsp;V. Sivaprakash,&nbsp;Arivoli C","doi":"10.1007/s12633-025-03335-2","DOIUrl":"10.1007/s12633-025-03335-2","url":null,"abstract":"&lt;div&gt;&lt;p&gt;This study investigates the mechanical, thermal, and wears characteristics of eco-friendly composite materials (designated as N1 to N5) with varying ratios of silicon nitride (biogenic Si&lt;sub&gt;3&lt;/sub&gt;N&lt;sub&gt;4&lt;/sub&gt;) and biochar along with jute and kenaf microfiber. The primary aim of this research study was to investigate the suitability of low cost biomass derived functional ceramic fillers in composite material instead of high cost industrial ceramics. Both the bio carbon and biogenic Si&lt;sub&gt;3&lt;/sub&gt;N&lt;sub&gt;4&lt;/sub&gt; were synthesized from waste sorghum husk ash via pyrolysis and thermo-chemical method. Further the composites are prepared via mixed casting process and post cured at 100 °C for 5 h. According to results, the mechanical properties show a consistent improvement, attributed to the contributions of biogenic Si&lt;sub&gt;3&lt;/sub&gt;N&lt;sub&gt;4&lt;/sub&gt;. Moreover, the specific wear rate decreases progressively, with a larger biogenic Si3N4 and bio carbon filler %. The presence of biochar acts as solid lubricant and offered balanced friction coefficient. The composite N4 attained maximum mechanical properties including tensile (110 MPa), flexural (173 MPa), impact (6.1 J), hardness (82 shore-D), compressive (138 MPa) and lap shear strength (16 MPa). On contrary, the composite N5 attained least thermal conductivity of 0.235 W/mK, Sp. Wear rate of 0.00545 with COF of 0.26. Similarly, the scanning electron microscope (SEM) analysis revealed highly adhered nature of fillers with matrix, indicating their cohesive nature indicating the strong interfacial adhesion between the fillers and the matrix, attributed to the presence of biochar, which enhances mechanical interlocking and provides functional groups that promote chemical bonding with the polymer matrix, leading to improved load transfer efficiency and overall composite performance. Moreover, thermal conductivity values exhibit a marginal decline with the presence of biogenic Si3N4 and biochar. Overall, the study demonstrated that biomass-derived functional fillers are capable candidates for providing the required toughness and abrasion-free surfaces, as evidenced by the increased impact strength, improved wear resistance, and enhanced durability observed in treated specimens compared to the control samples.This approach offers both economic and environmental benefits by reducing human exposure to hazardous pollutants through the utilization of biomass-derived materials, which help divert waste from landfills, lower air pollution caused by burning conventional plastics, and minimize soil contamination from non-biodegradable waste. In addition, the developed natural fiber-reinforced composites exhibited competitive mechanical performance compared to conventional industrial ceramic-reinforced composites, demonstrating comparable strength, enhanced toughness, and improved damping properties while offering the advantages of lower density, biodegradability, and cost-effectiveness. These findings highlight the","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 10","pages":"2417 - 2428"},"PeriodicalIF":3.3,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrogen Adsorption Characteristics of Au and Li Decorated Nanowires on Bulk Silicon","authors":"Orkun Ergürhan,&nbsp;Burcu Erdoğan","doi":"10.1007/s12633-025-03352-1","DOIUrl":"10.1007/s12633-025-03352-1","url":null,"abstract":"<div><p>The issue of global warming is a consequence of the utilization of fossil fuels, with ongoing research endeavors aimed at identifying solutions. Hydrogen is regarded as one of the most promising fuels in the search for alternative energy sources to fossil fuels. This study investigates the hydrogen storage properties of silicon (Si) nanowires synthesized by a two-step metal-assisted chemical etching (MACE) process and subsequently functionalized with gold (Au) or lithium (Li). The MACE process was repeated for different metal deposition times, etching times and oxidant molarities. Furthermore, the surface of the samples was modified with Au and Li solutions of varying molarities (0.001 and 0.01 mM) at 5 and 15 s intervals. The results indicate that the BET specific surface area of the samples is influenced by the etching time and the molarity of the oxidant. Furthermore, the functionalization of the surface has been shown to result in a decrease in the BET specific surface area. The hydrogen storage capacities of the samples functionalized with Au and Li atoms range from 0.027 to 0.042 mmol.g⁻¹. Based on the current literature, this study reports the initial findings regarding the molecular hydrogen storage via physisorption on porous silicon nanowires functionalized with gold and lithium adatoms, synthesized using the MACE method, at a cryogenic temperature of 77 K and a pressure of 113 kPa.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 10","pages":"2407 - 2415"},"PeriodicalIF":3.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Generalized Precise Approach for KOH Etching in Monocrystalline Silicon Wafer with an Orientation of < 100 > using Machine Learning","authors":"Lawrence Daniel Stephen Tamil,&nbsp;Jeffrey Joseph John Jeya Kamaraj,&nbsp;Senthil Pandian Muthu,&nbsp;Ramasamy Perumalsamy","doi":"10.1007/s12633-025-03350-3","DOIUrl":"10.1007/s12633-025-03350-3","url":null,"abstract":"<div><p>This work is about predicting the etching time to remove the saw damage and achieve the desired thickness of the monocrystalline silicon wafer using a polynomial regression machine learning model. More than 100 wafers were sliced using a diamond wire saw. All the wafers were etched in KOH solution. The initial and final thicknesses were logged to train the ML model. The equations were formulated to attain the final thickness precisely. The number of features was reduced using mathematical calculations. The reduced features and outputs were fed into a polynomial regression algorithm to get a trained model. The trained model was exported into a pickle file. The calculations were made to validate the quantity of KOH. Using the trained model and the calculations, the user-friendly interfacing software was developed with tkinter, an own graphical user interface of Python. The graphical user interface gets 7 parameters as inputs. They are Length, breadth, thickness, desired thickness of the wafer, temperature, quantity of KOH, and water. Using all the inputs, it can precisely calculate the etching time of the reaction. The primary beneficiaries of the calculator are laboratories seeking to achieve precise and specific target wafer thickness. The tool is particularly advantageous for industries looking for new wafer dimensions and for those aiming to remove saw damage.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 10","pages":"2393 - 2406"},"PeriodicalIF":3.3,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145145459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optical Biosensor for Glucose Detection Based on the Green Synthesis of Silicon Nanoparticles using Ocimum Basilicum Purpurascens Extract","authors":"G. E. Montoya-Leyva,&nbsp;D. Berman-Mendoza,&nbsp;A. Ramos-Carrazco,&nbsp;R. López-Delgado,&nbsp;R. Rangel,&nbsp;P. A. Hernández-Abril,&nbsp;H. J. Higuera-Valenzuela","doi":"10.1007/s12633-025-03351-2","DOIUrl":"10.1007/s12633-025-03351-2","url":null,"abstract":"<div><p>In the present research, we outline green synthesis of silicon nanoparticles (SiNPs) using a aqueous extract of Ocimum basilicum purpurascens, known as purple basil, and also for the utilization as a non-enzymatic glucose detection biosensor. Using the photoluminescence characteristics of SiNPs, glucose was detected. SiNPs of about 2.01 nm by dynamic light scattering (DLS) and with the use of atomic force microscopy (AFM) we could estimate values below at 2 nm, showing a photoluminescent peak at 441 nm were synthesized by this method. Optical characterization of the biosensor using the interaction of SiNPs in solution with different glucose concentrations resulted in a shift in the emission of the solution. A silicon nanoparticle and a photodetector constitute the optical biosensor. It needs to be noted that the transduction is indirectly obtained by the response of luminescent silicon nanoparticles. The electrical characterization of the photodetector revealed that the resistance changed from 15k<span>(Omega )</span> to 68k<span>(Omega )</span>, and the voltage varied from about 1.4V to 0.4V. 84.5<span>(upmu )</span> A was the current in the photodetector for the pure nanoparticles. In contrast, after glucose was introduced to the nanoparticles, the value dropped to 6.12<span>(upmu )</span> A. There is a one-order-of-magnitude difference between the two readings. These findings illustrate the effectiveness of SiNPs synthesized with natural extracts as an excellent alternative to glucose monitoring with advantages such as enhanced stability, sensitivity, and biocompatibility.</p></div>","PeriodicalId":776,"journal":{"name":"Silicon","volume":"17 10","pages":"2329 - 2345"},"PeriodicalIF":3.3,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145145370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}