Fabrication of hafnium-based nanoparticles and nanostructures using picosecond laser ablation

• Abhishek Das,
• Mangababu Akkanaboina,
• Jagannath Rathod,
• R. Sai Prasad Goud,
• Kanaka Ravi Kumar,
• Raghu C. Reddy,
• Ratheesh Ravendran,
• Katia Vutova,
• S. V. S. Nageswara Rao and
• Venugopal Rao Soma

Beilstein J. Nanotechnol. 2024, 15, 1639–1653, doi:10.3762/bjnano.15.129

• different liquid media, namely, deionised water (DW), toluene, and anisole, to fabricate HfO2 and HfC NPs along with Hf NSs. Spherical HfO2 NPs and nanofibres were formed when Hf was ablated in DW. Hf ablated in toluene and anisole demonstrated the formation of core–shell NPs of HfC with a graphitic shell

• insight into their morphological and optical characteristics paving way for their applications in future. Keywords: hafnium; laser ablation in liquids; nanofibres; nanoparticles; nanostructures; Introduction Hafnium (Hf) is a tetravalent transition metal with compounds showing excellent thermal and

• literature. In our earlier reports, HfO2 nanoparticles, nanoribbons, and nanofibres were synthesised by ablating HfO2 pellets utilising femtosecond laser pulses at 800 nm [10][30]. A bulk Hf target was also ablated in another work using nanosecond laser pulses in different liquids to synthesise oxides and

Study of the reusability and stability of nylon nanofibres as an antibody immobilisation surface

• Inés Peraile,
• Matilde Gil-García,
• Laura González-López,
• Nushin A. Dabbagh-Escalante,
• Juan C. Cabria-Ramos and
• Paloma Lorenzo-Lozano

Beilstein J. Nanotechnol. 2024, 15, 83–94, doi:10.3762/bjnano.15.8

• devices are able to respond to these needs. In the design of these immunological devices, surface antibody immobilisation is crucial. Nylon nanofibres have been described as a very good option because they allow for an increase in the surface-to-volume ratio, leading to an increase in immunocapture

• efficiency. In this paper, we want to deepen the study of other key points, such as the reuse and stability of these nanofibres, in order to assess their profitability. On the one hand, the reusability of nanofibres has been studied using different stripping treatments at different pH values on the nylon

• nanofibres with well-oriented antibodies anchored by protein A/G. Our study shows that stripping with glycine buffer pH 2.5 allows the nanofibres to be reused as long as protein A/G has been previously anchored, leaving both nanofibre and protein A/G unchanged. On the other hand, we investigated the

Biomimetics on the micro- and nanoscale – The 25th anniversary of the lotus effect

• Matthias Mail,
• Kerstin Koch,
• Thomas Speck,
• William M. Megill and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2023, 14, 850–856, doi:10.3762/bjnano.14.69

• nanostructures on the legs of cribellate spiders”. Here the challenge is to handle nanofibres which naturally stick to surfaces due to the van der Waals energy of surface interaction. Spiders which regularly process nanofibres into silk have evolved a structure on the surface of their hind legs to which the

• nanofibres do not stick. The authors use the geometry of the spider system to develop an elegant mathematical model of the interaction between the fibres and the surface. They then test their predictions using a structured metal mimic of the spider legs. They find that for some metals, in which they were

• tune and then scale up the fabrication of tools to handle nanofibres in industrial processes. Fibre–surface interactions are also the main theme in “Growing up in a rough world: scaling of frictional adhesion and morphology of the Tokay gecko (Gekko gecko)” by Cobos and Higham [15]. In the excitement

Metal-organic framework-based nanomaterials as opto-electrochemical sensors for the detection of antibiotics and hormones: A review

• Akeem Adeyemi Oladipo,
• Saba Derakhshan Oskouei and
• Mustafa Gazi

Beilstein J. Nanotechnol. 2023, 14, 631–673, doi:10.3762/bjnano.14.52

• the sensor. A novel electrochemical aptasensor based on Fe MOFs was reported by Song and co-workers [70]. In order to increase the sensor’s sensitivity to the detection of antibiotics, the MOF was further modified using carbon nanofibres and gold nanoparticles using a variety of techniques. In the

Biomimetic chitosan with biocomposite nanomaterials for bone tissue repair and regeneration

• Se-Kwon Kim,
• Sesha Subramanian Murugan,
• Pandurang Appana Dalavi,
• Sebanti Gupta,
• Sukumaran Anil,
• Gi Hun Seong and
• Jayachandran Venkatesan

Beilstein J. Nanotechnol. 2022, 13, 1051–1067, doi:10.3762/bjnano.13.92

• osteoblasts [63]. In another study, Li et al. (2015) used the electrospinning method to fabricate chitosan and MSN-containing nanofibers. In addition, an increase in mechanical strength was observed with an increase in the MSN content. Further in vitro assays reveal that nanofibres slowly degrade and have a

• high swelling ratio. Besides, in vitro biological assays with MC3T3-E1 cells show that nanofibres promote cell proliferation, alkaline phosphatase activity, and induce mineralisation [65]. Chitosan and biosilica-containing nanocomposites which include chitosan/ octa(tetramethylammonium)polyhedral

Bioselectivity of silk protein-based materials and their bio-inspired applications

• Hendrik Bargel,
• Vanessa T. Trossmann,
• Christoph Sommer and
• Thomas Scheibel

Beilstein J. Nanotechnol. 2022, 13, 902–921, doi:10.3762/bjnano.13.81

Engineered titania nanomaterials in advanced clinical applications

• Padmavati Sahare,
• Paulina Govea Alvarez,
• Juan Manual Sanchez Yanez,
• Gabriel Luna-Bárcenas,
• Samik Chakraborty,
• Sujay Paul and
• Miriam Estevez

Beilstein J. Nanotechnol. 2022, 13, 201–218, doi:10.3762/bjnano.13.15

• , were also used to improve the titania implant properties, and the material showed significant antibacterial activity against Staphylococcus aureus with sustained release of vancomycin [64]. Furthermore, the biological activity of TiO2 nanowires, nanofibres, and nanoneedles, was investigated and

The effect of cobalt on morphology, structure, and ORR activity of electrospun carbon fibre mats in aqueous alkaline environments

• Markus Gehring,
• Tobias Kutsch,
• Osmane Camara,
• Alexandre Merlen,
• Hermann Tempel,
• Hans Kungl and
• Rüdiger-A. Eichel

Beilstein J. Nanotechnol. 2021, 12, 1173–1186, doi:10.3762/bjnano.12.87

• three main groups: electroplating, electroless plating, and bottom-up methods such as vapour deposition. Another way to introduce metals to a carbon fibre system in form of nanoparticles was reported by groups who prepared cobalt/cobalt oxide-decorated carbon nanofibres from electrospinning by adding a

• further improved by applying a copper tape connecting the sample and the graphite tape. To identify the particles decorating the nanofibres, EDX was performed using an Octane Super EDX detector (EDAX). The programme “monte CArlo SImulation of electroN trajectory in sOlids” (CASINO) [23], which simulates

A review of carbon-based and non-carbon-based catalyst supports for the selective catalytic reduction of nitric oxide

• Shahreen Binti Izwan Anthonysamy,
• Syahidah Binti Afandi,
• Mehrnoush Khavarian and
• Abdul Rahman Bin Mohamed

Beilstein J. Nanotechnol. 2018, 9, 740–761, doi:10.3762/bjnano.9.68

• catalysts have been widely studied due to their high surface area, porosity, ability to regenerate and be reused, and good support properties [17]. Several metal oxides were impregnated with carbon-based materials such as carbon nanotubes (CNTs), activated carbon (AC), activated carbon nanofibres (ACNFs

Facile synthesis of ZnFe₂O₄ photocatalysts for decolourization of organic dyes under solar irradiation

• Arjun Behera,
• Debasmita Kandi,
• Sanjit Manohar Majhi,
• Satyabadi Martha and
• Kulamani Parida

Beilstein J. Nanotechnol. 2018, 9, 436–446, doi:10.3762/bjnano.9.42

• ZnFe2O4 by different physical (SSR and μW) and chemical (PC and SPC) methods with the formation of different structures [22]. Ponhan et al. prepared ZnFe2O4 nanofibres by electrospinning at room temperature. The resultant ZnFe2O4/PVP composite nano-fibres were calcined at 500, 600 and 700 °C for 2 h in a

Manufacturing and investigation of physical properties of polyacrylonitrile nanofibre composites with SiO₂, TiO₂ and Bi₂O₃ nanoparticles

• Tomasz Tański,
• Wiktor Matysiak and
• Barbara Hajduk

Beilstein J. Nanotechnol. 2016, 7, 1141–1155, doi:10.3762/bjnano.7.106

• of a matrix of polyacrylonitrile (PAN) and a reinforcing phase in the form of SiO2/TiO2/Bi2O3 nanoparticles, by electrospinning the solution. The effect of the nanoparticles and the electrospinning process parameters on the morphology and physical properties of the obtained composite nanofibres was

• determine the dielectric constant, refractive index and the thickness of the obtained fibrous mats. Keywords: ceramic nanoparticles; electrospinning methods; polyacrylonitrile; polymer composite nanofibres; spectroscopic ellipsometry; Introduction Over the last decade, there has been a noticeable

• , the most frequently used method for the preparation of polymer thin layers is the method of spin-coating, which uses centrifugal force to evenly distribute the polymer solution or melt on the selected substrate. In recent years can be observed a significant increase of interest of composite nanofibres

Low-cost formation of bulk and localized polymer-derived carbon nanodomains from polydimethylsiloxane

• Juan Carlos Castro Alcántara,
• Mariana Cerda Zorrilla,
• Lucia Cabriales,
• Luis Manuel León Rossano and
• Mathieu Hautefeuille

Beilstein J. Nanotechnol. 2015, 6, 744–748, doi:10.3762/bjnano.6.76

• may then be obtained according to the desired application and nanodomains such as carbon nanotubes and nanowires, silicon carbide (SiC) and SiC/SiO2 nanofibres have also been recently produced [2][3]. Typically, the use of special fillers and high temperatures of 1000 °C or greater are critical for

Filling of carbon nanotubes and nanofibres

• Reece D. Gately and
• Marc in het Panhuis

Beilstein J. Nanotechnol. 2015, 6, 508–516, doi:10.3762/bjnano.6.53

• , Australia 10.3762/bjnano.6.53 Abstract The reliable production of carbon nanotubes and nanofibres is a relatively new development, and due to their unique structure, there has been much interest in filling their hollow interiors. In this review, we provide an overview of the most common approaches for

• bundles of SWCNTs with a yield of up to 90% [20]. This technique is now one of the more common production techniques, in addition to catalytic carbon vapour deposition (CCVD). Carbon nanofibres (CNFs) are larger (≈100 nm outer diameter), cylindrical, carbon structures that have multiple possible

• 1200 °C and is reduced to 15 m2/g after heat treatment at 2800 °C. Pyrolitic stripping can also be performed on as-grown nanofibres to remove unreacted polyaromatic hydrocarbons that may have fused onto the surface of the VGCNFs. This has been shown to increase the SSA from 20 m2/g to 62 m2/g [28

AFM as an analysis tool for high-capacity sulfur cathodes for Li–S batteries

• Renate Hiesgen,
• Seniz Sörgel,
• Rémi Costa,
• Linus Carlé,
• Ines Galm,
• Natalia Cañas,
• Brigitta Pascucci and
• K. Andreas Friedrich

Beilstein J. Nanotechnol. 2013, 4, 611–624, doi:10.3762/bjnano.4.68

• a stable three-dimensional conductive network achieved by the introduction of carbon nanofibres has also been demonstrated [22]. Besides these more sophisticated approaches the introduction of a porous carbon/polytetrafluorethylen (PTFE) containing material, which is used as a gas diffusion layer in

Mechanical and thermal properties of bacterial-cellulose-fibre-reinforced Mater-Bi^® bionanocomposite

• Hamonangan Nainggolan,
• Saharman Gea,
• Emiliano Bilotti,
• Ton Peijs and
• Sabar D. Hutagalung

Beilstein J. Nanotechnol. 2013, 4, 325–329, doi:10.3762/bjnano.4.37

• starch of Mater-Bi® have been investigated. FBC produced by cultivating Acetobacter xylinum for 21 days in glucose-based medium were purified by sodium hydroxide 2.5 wt % and sodium hypochlorite 2.5 wt % overnight, consecutively. To obtain water-free BC nanofibres, the pellicles were freeze dried at a

Template-assisted formation of microsized nanocrystalline CeO₂ tubes and their catalytic performance in the carboxylation of methanol

• Jörg J. Schneider,
• Meike Naumann,
• Christian Schäfer,
• Armin Brandner,
• Heiko J. Hofmann and
• Peter Claus

Beilstein J. Nanotechnol. 2011, 2, 776–784, doi:10.3762/bjnano.2.86

• functional properties [16]. Electrospinning is a technology that allows the formation of polymer fibres with nanoscale dimensions [17][18][19][20]. Such nanofibres and nanotubes based on electrospun polymers offer a broad range of applications in areas such as photonics, sensorics, catalysis, medicine