Advances in Natural Sciences: Nanoscience and Nanotechnology最新文献

Recent advancements of nanoparticles for antiviral therapy 用于抗病毒治疗的纳米粒子的最新进展

IF 2.1

Advances in Natural Sciences: Nanoscience and Nanotechnology Pub Date : 2024-09-17 DOI: 10.1088/2043-6262/ad6b7d

Priyanku Pradip Das, Sounok Sengupta, Deepak Balram, Kuang-Yow Lian, Shavkatjon Azizov, Ujjwal Kumar Neogi, Sadanand Pandey and Deepak Kumar

{"title":"Recent advancements of nanoparticles for antiviral therapy","authors":"Priyanku Pradip Das, Sounok Sengupta, Deepak Balram, Kuang-Yow Lian, Shavkatjon Azizov, Ujjwal Kumar Neogi, Sadanand Pandey and Deepak Kumar","doi":"10.1088/2043-6262/ad6b7d","DOIUrl":"https://doi.org/10.1088/2043-6262/ad6b7d","url":null,"abstract":"The global outbreak of infectious diseases in recent decades has caused serious health problems worldwide. Key factors that contribute to the lack of a complete therapeutic strategy against viral infections include biomimetic architecture, ability to manipulate the antibody, continuous antigen transfer, covert system of injecting inappropriate doses of drugs at target sites, resulting in drug resistance. Reasons include low water solubility, poor permeability, plasma protein a high self-similarity, short gene half-life, and rapid system elimination. To combat these challenges, nanoparticle-based drug delivery has emerged as a revolutionary approach, applying nanoengineering tools to nanoparticle synthesis to achieve optimal drug concentrations at targeted sites over time nanoparticles with nano dimensional structure enhanced permeability and retention effects, increasing surface area volume ratios, in surface-functioning capacity, prove effective in antiviral therapeutic delivery but size, shape, charge, and surface topology of nanoparticles allow target specific drug delivery, cellular uptake, opsonization by host immune cells, drug retention time, transcytosis, extended biological half -life, in vivo stability, and significantly affect cytotoxicity. This review provides an in-depth analysis of the critical role of nanotechnology-based drugs while addressing important aspects of clinical safety and efficacy.","PeriodicalId":7359,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142269282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Saponin-mediated and microwave-assisted biosynthesis of silver nanoparticles: preparations and anticancer assessment 皂素介导和微波辅助的银纳米粒子生物合成：制备和抗癌评估

IF 2.1

Advances in Natural Sciences: Nanoscience and Nanotechnology Pub Date : 2024-09-10 DOI: 10.1088/2043-6262/ad71a9

Sesha Subramanian Murugan, Pandurang Appana Dalavi, Pramod K Gupta, Won Hur, Ramkumar Pillappan, Jayachandran Venkatesan and Gi Hun Seong

{"title":"Saponin-mediated and microwave-assisted biosynthesis of silver nanoparticles: preparations and anticancer assessment","authors":"Sesha Subramanian Murugan, Pandurang Appana Dalavi, Pramod K Gupta, Won Hur, Ramkumar Pillappan, Jayachandran Venkatesan and Gi Hun Seong","doi":"10.1088/2043-6262/ad71a9","DOIUrl":"https://doi.org/10.1088/2043-6262/ad71a9","url":null,"abstract":"Silver nanoparticles have been extensively studied and used for biological and biomedical applications due to its antimicrobial properties. In this study, we have developed silver nanoparticles with saponin (S-AgNPs) using microwave-mediated methodology and physiochemically characterised and evaluated its anticancer potential. According to UV–visible spectroscopy, S-AgNPs exhibited a maximum absorption peak at a wavelength of 420 nm. DLS analysis revealed that S-AgNPs have an average diameter of around 133.8 ± 10 nm. HR-TEM analysis confirms the spherical morphology of S-AgNPs. Further, the anticancer effect of S-AgNPs was validated using A459 lung cancer cells by in vitro cell interaction tests such as the MTT assay, staining assay, and flow cytometry assay. The IC50 value of S-AgNPs against A549 cells was 30 μg ml−1, and Calcein-EtBr and Annexin V/PI staining results confirm the presence of apoptotic cells after treatment S-AgNPs. Hence, biosynthesized S-AgNPs can play a vital role in developing anticancer drugs for cancer treatment.","PeriodicalId":7359,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis, characterization, and cellular investigation of three smart polymeric nanoparticles as efficient plasmid CRISPR (pCRISPR) delivery vehicles 作为高效质粒 CRISPR (pCRISPR) 运载工具的三种智能聚合物纳米粒子的合成、表征和细胞研究

IF 2.1

Advances in Natural Sciences: Nanoscience and Nanotechnology Pub Date : 2024-09-06 DOI: 10.1088/2043-6262/ad6e5c

Roya Khodaei, Mehrdad Bayandori, Leila Mohammad Gholinia Sarpoli, Masoumeh Souri, Iraj Hasanzade, Ronak Khodaee, Sara Saeedi, Jafar Kiani, Mahdi Karimi

{"title":"Synthesis, characterization, and cellular investigation of three smart polymeric nanoparticles as efficient plasmid CRISPR (pCRISPR) delivery vehicles","authors":"Roya Khodaei, Mehrdad Bayandori, Leila Mohammad Gholinia Sarpoli, Masoumeh Souri, Iraj Hasanzade, Ronak Khodaee, Sara Saeedi, Jafar Kiani, Mahdi Karimi","doi":"10.1088/2043-6262/ad6e5c","DOIUrl":"https://doi.org/10.1088/2043-6262/ad6e5c","url":null,"abstract":"<italic toggle=\"yes\">Purpose</italic>. Gene therapy is a strategy to provide therapeutic advantages by modifying genes, and CRISPR/Cas9 is the simplest and the most efficient gene editing technology. Appropriate smart nanocarriers are a promising way to deliver these gene editing tools into cells efficiently. <italic toggle=\"yes\">Methods</italic>. In this study, three novel smart nanocarriers were prepared for CRISPR/Cas9 delivery into PC12 cells. We designed a smart polyplex using synthetic redox-responsive polyethyleneimine (rPEI) made by crosslinked PEI ∼ 2 KD and pCRISPR using electrostatic interactions. Then, to avoid unwanted interactions with blood ingredients three natural polysaccharides with negative charge, hyaluronic acid (HA), chondroitin sulfate (CS), and alginate(ALG) have been used separately as outer shells. Additionally, nanocarriers were characterized in terms of zeta potential, size distribution, and loading efficiency. Finally, the cytotoxicity of nanocarriers and GFP gene expression were evaluated. <italic toggle=\"yes\">Results</italic>. The average size of the nanocarriers with outer coats of HA, ALG, and CS was around 47, 66.5, and 309 nm, respectively. Furthermore, these three nanocarriers indicated a high loading efficiency, high capacity for cellular uptake (>90%), and no significant toxicity. The pCRISPR expression amount was estimated up to 21%. <italic toggle=\"yes\">Conclusion</italic>. These redox-responsive polymeric nanocarriers suggest novel and efficient carriers for CRISPR/Cas9 delivery.","PeriodicalId":7359,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chitosan derived N-doped carbon aerogel nanostructures for high-performance supercapacitors 用于高性能超级电容器的壳聚糖衍生 N 掺杂碳气凝胶纳米结构

IF 2.1

Advances in Natural Sciences: Nanoscience and Nanotechnology Pub Date : 2024-09-02 DOI: 10.1088/2043-6262/ad71a4

Le Hong Quan, Ung Thi Dieu Thuy, Nguyen Van Chi, Nguyen Van Hoa

引用次数: 0

Metallic nature of T-graphene sheet and nanotubes T 型石墨烯薄片和纳米管的金属性质

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Advances in Natural Sciences: Nanoscience and Nanotechnology Pub Date : 2024-08-30 DOI: 10.1088/2043-6262/ad71aa

Hamze Mousavi, Samira Jalilvand, Delnia Dahesh

{"title":"Metallic nature of T-graphene sheet and nanotubes","authors":"Hamze Mousavi, Samira Jalilvand, Delnia Dahesh","doi":"10.1088/2043-6262/ad71aa","DOIUrl":"https://doi.org/10.1088/2043-6262/ad71aa","url":null,"abstract":"The band structure, density of states (DOS), and Pauli magnetic susceptibility (PMS) of T-graphene nanotubes (TGNTs) with varying chiralities and diameters are investigated using the tight-binding Hamiltonian model and Green's function formalism. We analyze two edge types: zigzag (zTGNT) and armchair (aTGNT). Our findings reveal that both zTGNTs and aTGNTs exhibit metallic behavior regardless of diameter. Notably, aTGNTs feature Dirac points in their band structure, with their abundance increasing with nanotube diameter. As compared to graphene, when the diameter of the nanotube increases, aTGNTs reveal more Dirac points at the Fermi level. Additionally, increasing the diameter leads to the emergence of additional sub-bands in the band structure and van-Hove singularities in the DOS diagrams. Consequently, the PMS curves exhibit a crossover, dividing into distinct regimes at varying temperatures. The metallic properties of both TGNT types are apparent in the PMS curves, attributed to the proportional relationship between PMS and DOS. Furthermore, the DOS curves converge towards monolayer behavior as the TGNT diameter increases significantly.","PeriodicalId":7359,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic effect of cobalt ferrite-graphene oxide based hyperthermia and capsaicin to induce apoptosis and inhibit telomerase activity in breast cancer cells 基于钴铁氧体-氧化石墨烯的热疗和辣椒素在诱导乳腺癌细胞凋亡和抑制端粒酶活性方面的协同效应

IF 2.1

Advances in Natural Sciences: Nanoscience and Nanotechnology Pub Date : 2024-08-30 DOI: 10.1088/2043-6262/ad71a5

Seyed Ali Lajevardian, Abbas Alibakhshi, Simzar Hosseinzadeh, Fatemeh Mobaraki, Monireh Movahedi, Shadie Hatamie, Maryam Tabarzad, Javad Ranjbari

{"title":"Synergistic effect of cobalt ferrite-graphene oxide based hyperthermia and capsaicin to induce apoptosis and inhibit telomerase activity in breast cancer cells","authors":"Seyed Ali Lajevardian, Abbas Alibakhshi, Simzar Hosseinzadeh, Fatemeh Mobaraki, Monireh Movahedi, Shadie Hatamie, Maryam Tabarzad, Javad Ranjbari","doi":"10.1088/2043-6262/ad71a5","DOIUrl":"https://doi.org/10.1088/2043-6262/ad71a5","url":null,"abstract":"Capsaicin is a bioactive phytochemical of red and chili peppers. It has shown therapeutic properties, including anticancer activities. In this study, the potential anti-telomerase effect of capsaicin, as well as synergic inhibitory effect of this compound in combination with cobalt ferrite-graphene oxide nanocomposites was investigated on breast cancer cell line. For this purpose, cobalt ferrite/graphene oxide (CoFe2O4/GO) nanoparticles were synthesized and characterized. Then, the effect of different concentrations of capsaicin and CoFe2O4/GO nanoparticles, and their combination on the breast adenocarcinoma cell lines (MCF-7 and MCF-10A) were analyzed using MTT assay and quantitative real-time PCR for assessing their effect on the cell viability and the expression changes in telomerase reverse transcriptase (<italic toggle=\"yes\">tert</italic>), Bax and Bcl2 genes, respectively. The results showed a synergistic effect of capsaicin and CoFe2O4/GO NPs on MCF-7 cell lines that reduced the IC50 value from 0.1 and 1 mg/ml for capsaicin and CoFe2O4/GO nanoparticles, to 0.05 and 0.5 mg ml−1, respectively. Moreover, <italic toggle=\"yes\">telomerase</italic> and <italic toggle=\"yes\">bcl</italic>2 genes expression decreased after capsaicin and CoFe2O4/GO NPs treatment; while in contrast, <italic toggle=\"yes\">bax</italic> gene expression significantly increased. Consequently, capsaicin and CoFe2O4/GO NPs treatment could induce apoptosis and inhibit the growth of breast cancer cells. In conclusion, combinational treatment with capsaicin and CoFe2O4/GO NPs could be considered as an efficient therapeutic regimen for breast cancer.","PeriodicalId":7359,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel design of symmetrical grating built on D-shaped optical fiber sensor-based surface plasmon resonance 基于表面等离子体共振的 D 型光纤传感器对称光栅新设计

IF 2.1

Advances in Natural Sciences: Nanoscience and Nanotechnology Pub Date : 2024-08-29 DOI: 10.1088/2043-6262/ad71a6

Sarah Osamah, Makram A Fakhri, Ali Abdulkhaleq Alwahib, Evan T Salim, Raed Khalid Ibrahim, Al-B F A Mohammed, Subash C B Gopinath, Motahher A Qaeed, Hanan I Ibrahim, Akram Sh Ahmed, Hussein A Shakir, Ban K Hadi

{"title":"A novel design of symmetrical grating built on D-shaped optical fiber sensor-based surface plasmon resonance","authors":"Sarah Osamah, Makram A Fakhri, Ali Abdulkhaleq Alwahib, Evan T Salim, Raed Khalid Ibrahim, Al-B F A Mohammed, Subash C B Gopinath, Motahher A Qaeed, Hanan I Ibrahim, Akram Sh Ahmed, Hussein A Shakir, Ban K Hadi","doi":"10.1088/2043-6262/ad71a6","DOIUrl":"https://doi.org/10.1088/2043-6262/ad71a6","url":null,"abstract":"Surface Plasmon Resonance (SPR) is an electromagnetic phenomenon that occurs during the interaction between metals and dielectric materials. Fiber sensors show much attention in the last few decades because of their extremely sensitive performance. A novel design of a Dual symmetrical grating D-shaped fiber (Dual SGD-SF) based plasmonic sensor was theoretically studied. The effects of grating depth and gold and silver thickness were investigated. For the Dual SGD-SF sensor design at analyte RI = 1.5 and grating depth = 0.3 μm, the resonance wavelength at the maximum loss was 2.4 μm. The maximum wavelength sensitivity, resolution, and FOM for Dual SGD-SF were obtained at 2000 nm/RIU, 0.00005 RIU, and 22.22 RIU−1, respectively. This design was proposed for sensing very low concentrations of analyte and helps to discover the variations of refractive indices compared to high-purity liquids. To the best of our knowledge, using a symmetrical grating design as a refractive index sensor has not previously been reported.","PeriodicalId":7359,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antifungal activities of chitosan nanoparticles against Fusarium pseudensiforme on durian trees 壳聚糖纳米颗粒对榴莲假镰刀菌的抗真菌活性

IF 2.1

Advances in Natural Sciences: Nanoscience and Nanotechnology Pub Date : 2024-08-28 DOI: 10.1088/2043-6262/ad6e5d

Hoang Ngoc Cuong, Nguyen Thi Kim Cuc, Le Thi Tinh, Nguyen Van Hoa

{"title":"Antifungal activities of chitosan nanoparticles against Fusarium pseudensiforme on durian trees","authors":"Hoang Ngoc Cuong, Nguyen Thi Kim Cuc, Le Thi Tinh, Nguyen Van Hoa","doi":"10.1088/2043-6262/ad6e5d","DOIUrl":"https://doi.org/10.1088/2043-6262/ad6e5d","url":null,"abstract":"Antifungal nano-biomaterials are gaining interest as an effective strategy for controlling fungal pathogens because of their nontoxicity, biodegradability, biocompatibility, and high activity. The study aimed to present an antifungal agent, squid chitosan nanoparticles (SCNs), against the <italic toggle=\"yes\">Fusarium pseudensiforme</italic> pathogen in durian trees. Besides, the <italic toggle=\"yes\">in vitro</italic> antifungal activity of SCNs was compared to other agents, including neem oil and squid pen chitosan. All biomaterials showed a decrease in mycelial growth as their treated concentrations increased. However, at the same concentration of 250 ppm after 8 days of incubation at 28 °C, SCNs exhibited the highest in totally inhibiting the growth of <italic toggle=\"yes\">Fusarium pseudensiforme,</italic> while the lesion diameters were 2.5 cm (neem oil) and 2.1 cm (chitosan). Besides, the lowest dried biomass was obtained after 8 days of incubation in broth culture at 250 ppm of the SCNs. The findings suggested that SCNs could be used as an effective alternative nano-biomaterial for controlling the <italic toggle=\"yes\">Fusarium pseudensiforme</italic> pathogen in durian trees.","PeriodicalId":7359,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the use of fast electron backscattering for the determination of the C/O ratios: possible applications to graphene oxide and reduced graphene oxide 探索利用快速电子反向散射测定 C/O 比率：氧化石墨烯和还原氧化石墨烯的可能应用

IF 2.1

Advances in Natural Sciences: Nanoscience and Nanotechnology Pub Date : 2024-08-28 DOI: 10.1088/2043-6262/ad6cc1

Ivan Padron-Ramirez, Frank J Chao Mujica, Ángeles Díaz Sánchez, Carlos R Arganis Juárez, Pamela F Nelson, Jose P Peña Caravaca, Josue Ponce de León Cabrera, Angel Luis Corcho-Valdés, Manuel Antuch, Luis F Desdin-Garcia

{"title":"Exploring the use of fast electron backscattering for the determination of the C/O ratios: possible applications to graphene oxide and reduced graphene oxide","authors":"Ivan Padron-Ramirez, Frank J Chao Mujica, Ángeles Díaz Sánchez, Carlos R Arganis Juárez, Pamela F Nelson, Jose P Peña Caravaca, Josue Ponce de León Cabrera, Angel Luis Corcho-Valdés, Manuel Antuch, Luis F Desdin-Garcia","doi":"10.1088/2043-6262/ad6cc1","DOIUrl":"https://doi.org/10.1088/2043-6262/ad6cc1","url":null,"abstract":"GO and rGO are carbon nanostructures with a wide range of applications. The carbon/oxygen ratio (C/O) is a basic parameter that determines many of its essential properties. The large-scale production of these materials requires the use of fast and representative methods to determine the C/O ratio. In the present work, the feasibility of using fast electron backscattering to determine this relationship was explored. The method is rapid and does not require previous sample treatment, its accuracy is approximately 11%–15% for C/O ∼ 10–35 and its precision is around 0.4%. It was estimated that the backscattered electrons being detected came from a sample mass of 0.04–0.4 g, depending on the synthesis method used. The accuracy of the backscatter method is approximately equal to that of EDX and XPS, but it surpasses them in precision and representativeness. Backscattering equipments are more economical when compared to the above-mentioned techniques; however, it can be affected by the presence of impurities. Therefore, we consider it an appropriate method for the large-scale control of samples of GO and rGO produced by a given technology and calibrated with a rigorous elemental analysis.","PeriodicalId":7359,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prediction of ferromagnetism in GaN:Ag and SiC:Ag nanotubes GaN:Ag 和 SiC:Ag 纳米管的铁磁性预测

IF 2.1

Advances in Natural Sciences: Nanoscience and Nanotechnology Pub Date : 2024-08-28 DOI: 10.1088/2043-6262/ad71a7

Vusala Nabi Jafarova, Sevda Sabir Rzayeva, Ionut Cristian Scurtu, Costel Stanca, Nicoleta Acomi, Gabriel Raicu

{"title":"Prediction of ferromagnetism in GaN:Ag and SiC:Ag nanotubes","authors":"Vusala Nabi Jafarova, Sevda Sabir Rzayeva, Ionut Cristian Scurtu, Costel Stanca, Nicoleta Acomi, Gabriel Raicu","doi":"10.1088/2043-6262/ad71a7","DOIUrl":"https://doi.org/10.1088/2043-6262/ad71a7","url":null,"abstract":"Ferromagnetism in single-walled (6,0) GaN(SiC):Ag nanotubes were studied based on <italic toggle=\"yes\">ab initio</italic> simulations within a pseudopotential method. For the GaN:Ag single-walled nanosystems, the width of the band gap reduces with the increase of dopant concentration. While Ag-doped SiC nanotubes, the band gap of majority-spin states decrease and these systems show metallic character. The first-principles results of total energies for SiC(GaN):Ag nanotubes predicted the stability of the ferromagnetic and antiferromagnetic phase, respectively. The obtained values of total magnetic moments of Ag-GaN and Ag-SiC systems are ∼2.0 and ∼3.2 μB, respectively. The analysis of the results of density of states show the significant contribution to the magnetization of both defected GaN:Ag and SiC:Ag systems come from three nitrogen and carbon atoms which are bonded with the dopant. First-principles investigation, suggest that the SiC(GaN):Ag nanotubes can be made into magnetic materials, and these are promising candidates for electronic, optoelectronic, and spintronic devices.","PeriodicalId":7359,"journal":{"name":"Advances in Natural Sciences: Nanoscience and Nanotechnology","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142210511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0