On the mechanism of piezoresistance in nanocrystalline graphite

• Sandeep Kumar,
• Simone Dehm and
• Ralph Krupke

Beilstein J. Nanotechnol. 2024, 15, 376–384, doi:10.3762/bjnano.15.34

• electronics. This is because the relative change in resistance of graphene for similar values of applied strain (4%) is just 50%, which is two orders of magnitude lower than that of the flat-screen material indium titanium oxide (ITO). Indeed, from a theoretical point of view, change in resistance due to

Plasmonic nanotechnology for photothermal applications – an evaluation

• A. R. Indhu,
• L. Keerthana and
• Gnanaprakash Dharmalingam

Beilstein J. Nanotechnol. 2023, 14, 380–419, doi:10.3762/bjnano.14.33

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

• , researchers have tried several ways to develop different materials using chitosan-based nanocomposites of silver, copper, gold, zinc oxide, titanium oxide, carbon nanotubes, graphene oxide, and biosilica. The combination of materials helps in the expression of ideal bone formation genes of alkaline

• and regeneration [14]. Nanomaterials such as silver [15], gold [16][17], titanium oxide [18], zinc oxide [19][20], carbon nanotubes [21][22], graphene [23] and biosilica have been studied in terms of their osteogenic potential in stem cell differentiation. Chitosan materials are often combined with

• , chitosan, and nanohydroxyapatite. The osteogenic properties of the fabricated scaffold were confirmed by biological assays with rat osteoprogenitor cells. In addition, the scaffold shows excellent antibacterial activity against Staphylococcus aureus and Escherichia coli [100]. Chitosan–titanium oxide

Investigation of a memory effect in a Au/(Ti–Cu)Ox-gradient thin film/TiAlV structure

• Damian Wojcieszak,
• Jarosław Domaradzki,
• Michał Mazur,
• Tomasz Kotwica and
• Danuta Kaczmarek

Beilstein J. Nanotechnol. 2022, 13, 265–273, doi:10.3762/bjnano.13.21

• resulted in a pinched current-to-voltage behavior indicating a memristive-like memory effect. In the present case, the measured I–V curves showed a nonpinched hysteresis shape. We believe that this effect could be due to the wide (about 420 nm) area of the middle region, rich in titanium oxide, which

Morphology-driven gas sensing by fabricated fractals: A review

• Vishal Kamathe and
• Rupali Nagar

Beilstein J. Nanotechnol. 2021, 12, 1187–1208, doi:10.3762/bjnano.12.88

• , carbon monoxide, ammonia, nitrous oxide, and ethanol (Figure 10e,f) at 250 °C. The estimated fractal dimensions were 1.82 for the pore network and 1.72 for the foam sensor. Titanium oxide-based fractals Fusco et al. modified dielectric titanium oxide (TiO2) nanoparticles with fractal structure with a

TiO_x/Pt₃Ti(111) surface-directed formation of electronically responsive supramolecular assemblies of tungsten oxide clusters

• Marco Moors,
• Yun An,
• Agnieszka Kuc and
• Kirill Yu. Monakhov

Beilstein J. Nanotechnol. 2021, 12, 203–212, doi:10.3762/bjnano.12.16

• Dresden-Rossendorf, Department of Reactive Transport, Institute of Resource Ecology, Permoserstraße 15, 04318 Leipzig, Germany 10.3762/bjnano.12.16 Abstract Highly ordered titanium oxide films grown on a Pt3Ti(111) alloy surface were utilized for the controlled immobilization and tip-induced electric

• titanium oxide layers grown on a Pt3Ti(111) surface. The given case study with the nanoscopic W3O9 clusters as the main components of tungsten trioxide vapor, which have been evidenced by mass spectrometric studies [9][10], showcases remarkable TiOx/Pt3Ti(111)-directed reactivity of W3O9 to hierarchical

• interaction. Both characteristics are implemented by atomically ordered titanium oxide ultrathin films grown on a bimetallic Pt3Ti(111) single crystal surface. More importantly, the use of this material has already proven successful in supporting the self-organization of Pd clusters [21]. Exposing the Pt3Ti

Antimicrobial metal-based nanoparticles: a review on their synthesis, types and antimicrobial action

• Matías Guerrero Correa,
• Fernanda B. Martínez,
• Cristian Patiño Vidal,
• Camilo Streitt,
• Juan Escrig and
• Carol Lopez de Dicastillo

Beilstein J. Nanotechnol. 2020, 11, 1450–1469, doi:10.3762/bjnano.11.129

• -based NPs have demonstrated antimicrobial activity over the last years. Several metal and metal oxide NPs, such as silver, copper, zinc oxide, titanium oxide, copper oxide, and nickel oxide NPs, are known to display antimicrobial activity [15][16][17] that depends on their composition, surface

Gram-scale synthesis of splat-shaped Ag–TiO₂ nanocomposites for enhanced antimicrobial properties

• Mohammad Jaber,
• Asim Mushtaq,
• Kebiao Zhang,
• Jindan Wu,
• Dandan Luo,
• Zihan Yi,
• M. Zubair Iqbal and
• Xiangdong Kong

Beilstein J. Nanotechnol. 2020, 11, 1119–1125, doi:10.3762/bjnano.11.96

• , silver (Ag), zinc oxide (ZnO), copper oxide (CuO), iron oxide (Fe3O4) and titanium oxide (TiO2) are well recognized options due to their outstanding antibacterial properties. These nanoparticles have antibacterial activity due to the production of reactive oxygen species (ROS) [9][10][11]; more

Photoactive nanoarchitectures based on clays incorporating TiO₂ and ZnO nanoparticles

• Eduardo Ruiz-Hitzky,
• Pilar Aranda,
• Marwa Akkari,
• Nithima Khaorapapong and
• Makoto Ogawa

Beilstein J. Nanotechnol. 2019, 10, 1140–1156, doi:10.3762/bjnano.10.114

• . They represent a source of components easily applicable to the development of new photocatalysts based on these silicates. We have above examined how titanium oxide and zinc oxide NPs can be assembled to diverse type of clay minerals of variable topologies leading to nanoarchitectured materials with

Tailoring the stability/aggregation of one-dimensional TiO₂(B)/titanate nanowires using surfactants

• Atiđa Selmani,
• Johannes Lützenkirchen,
• Kristina Kučanda,
• Dario Dabić,
• Engelbert Redel,
• Ida Delač Marion,
• Damir Kralj,
• Darija Domazet Jurašin and
• Maja Dutour Sikirić

Beilstein J. Nanotechnol. 2019, 10, 1024–1037, doi:10.3762/bjnano.10.103

• other titanium oxide nanostructures [14][16]. It has been previously shown that various types of surface coatings affect NM properties, and in particular, can improve their stability and biocompatibility [13][17][18][19]. Although much is known about the aggregation of spherical TNMs in different media

• and in the presence of different additives [12][20][21][22], much less is known about 1D TNMs, such as titanium oxide nanotubes (TNTs), titanium oxide nanowires (TNWs) and titanium oxide nanorods (TNRs). As shown previously, the morphology of TNMs is expected to play a significant role in their

Biocompatible organic–inorganic hybrid materials based on nucleobases and titanium developed by molecular layer deposition

• Leva Momtazi,
• Henrik H. Sønsteby and
• Ola Nilsen

Beilstein J. Nanotechnol. 2019, 10, 399–411, doi:10.3762/bjnano.10.39

• containing thymine or titanium oxide. Overall, a more in-depth investigation of the structure of the Ti-thymine films should be performed. No sign of crystallinity was observed for Ti-adenine and Ti-uracil by AFM or XRD. We used XPS as a qualitative investigation of the chemical state in the thin films prior

Impact of the anodization time on the photocatalytic activity of TiO₂ nanotubes

• Jesús A. Díaz-Real,
• Geyla C. Dubed-Bandomo,
• Juan Galindo-de-la-Rosa,
• Luis G. Arriaga,
• Janet Ledesma-García and
• Nicolas Alonso-Vante

Beilstein J. Nanotechnol. 2018, 9, 2628–2643, doi:10.3762/bjnano.9.244

• Columbia, V6T 1Z4, Canada 10.3762/bjnano.9.244 Abstract Titanium oxide nanotubes (TNTs) were anodically grown in ethylene glycol electrolyte. The influence of the anodization time on their physicochemical and photoelectrochemical properties was evaluated. Concomitant with the anodization time, the NT

Recent highlights in nanoscale and mesoscale friction

• Andrea Vanossi,
• Dirk Dietzel,
• Andre Schirmeisen,
• Ernst Meyer,
• Rémy Pawlak,
• Thilo Glatzel,
• Marcin Kisiel,
• Shigeki Kawai and
• Nicola Manini

Beilstein J. Nanotechnol. 2018, 9, 1995–2014, doi:10.3762/bjnano.9.190

• assemble more complex nanodevices. Prospects in tuning friction with photo-assisted reactions The influence of light exposure on properties such as friction and adhesion is rarely explored. For instance, it is known that certain surfaces, such as titanium oxide, exhibit photocatalytic properties and might

Review on nanoparticles and nanostructured materials: history, sources, toxicity and regulations

• Jaison Jeevanandam,
• Ahmed Barhoum,
• Yen S. Chan,
• Alain Dufresne and
• Michael K. Danquah

Beilstein J. Nanotechnol. 2018, 9, 1050–1074, doi:10.3762/bjnano.9.98

• have been extensively used in commercial products ranging from personal care products to paints [113]. Titanium oxide NPs larger than 100 nm are broadly utilized as a white pigment in cosmetic creams and sunscreens [114]. Similarly, Ag NPs have been used in diverse applications including air sanitizer

Comparative study of antibacterial properties of polystyrene films with TiO_x and Cu nanoparticles fabricated using cluster beam technique

• Vladimir N. Popok,
• Cesarino M. Jeppesen,
• Peter Fojan,
• Anna Kuzminova,
• Jan Hanuš and
• Ondřej Kylián

Beilstein J. Nanotechnol. 2018, 9, 861–869, doi:10.3762/bjnano.9.80

• transmittance measurements presented in Supporting Information File 1. In-flight oxidation (type 3) results in an increase of the contribution of titanium oxide compounds. Namely, the band of TiO2 (IV) becomes the most intense one in the spectra (Figure 4b). The fraction of metallic compound is found to be less

• titanium oxide, the bactericidal efficiency of Cu NPs gradually decreases with the number of cycles as can be seen in Table 1. After seven cycles, the survival ratio reaches approximately 0.7. Increase of the exposure time to 180 min in the 7th cycle helps to decrease the survival ratio to around 0.60

• contrast to titanium oxide peaks for which Gaussian/Lorentzian line shape is used. Bactericidal experiments An E.coli culture is grown in Luria Bertani medium overnight at 37 °C. The optical density (OD) of the culture is adjusted with fresh medium and applied to the different samples. Two groups of TiOx

Synthesis and characterization of two new TiO₂-containing benzothiazole-based imine composites for organic device applications

• Anna Różycka,
• Agnieszka Iwan,
• Krzysztof Artur Bogdanowicz,
• Michal Filapek,
• Natalia Górska,
• Damian Pociecha,
• Marek Malinowski,
• Patryk Fryń,
• Agnieszka Hreniak,
• Jakub Rysz,
• Paweł Dąbczyński and
• Monika Marzec

Beilstein J. Nanotechnol. 2018, 9, 721–739, doi:10.3762/bjnano.9.67

• imines with TiO2 particles. The symmetry of the investigated imines has an impact on the observed results of the created imine:TiO2 composites. Clearly, the investigated titanium oxide changed the properties of both imines in the following ways: weight ratio of TiO2 weakly affected the phase transition

Photocatalytic and adsorption properties of TiO₂-pillared montmorillonite obtained by hydrothermally activated intercalation of titanium polyhydroxo complexes

• Mikhail F. Butman,
• Nikolay L. Ovchinnikov,
• Nikita S. Karasev,
• Nataliya E. Kochkina,
• Alexander V. Agafonov and
• Alexandr V. Vinogradov

Beilstein J. Nanotechnol. 2018, 9, 364–378, doi:10.3762/bjnano.9.36

• . Keywords: adsorption; intercalation; mesoporosity; photocatalytic activity; pillared montmorillonite; titanium oxide; Introduction Titanium dioxide in its nanometer-sized form is one of the most promising modern photocatalysts [1]. However, the use of pure TiO2 nanoparticles is hindered by some

• mobility. In pillared samples, titanium oxide may probably exist both in the interlayer space and on the external surface of pillared MM. Figure 5 shows SEM images of the pillared samples TiO2-PMM500 and TiO2-PMMH500. Their morphologies have essential differences. In the case of TiO2-PMM500 (Figure 5a-1

• ), agglomerates of TiO2 crystallites with different shapes and sizes dispersed on the surface of MM are clearly seen. On the surface of TiO2-PMMH500 (Figure 5b-1) there are coral-like formations of titanium oxide, between which the TiO2 aggregates are distributed. Such a surface profile of a hydrothermally

Photocatalysis applications of some hybrid polymeric composites incorporating TiO₂ nanoparticles and their combinations with SiO₂/Fe₂O₃

• Andreea Laura Chibac,
• Tinca Buruiana,
• Violeta Melinte and
• Emil C. Buruiana

Beilstein J. Nanotechnol. 2017, 8, 272–286, doi:10.3762/bjnano.8.30

• Andreea Laura Chibac Tinca Buruiana Violeta Melinte Emil C. Buruiana Petru Poni Institute of Macromolecular Chemistry, 41 A Gr. Ghica Voda Alley, 700487 Iasi, Romania 10.3762/bjnano.8.30 Abstract Polymer nanocomposites containing titanium oxide nanoparticles (TiO2 NPs) combined with other

Laser irradiation in water for the novel, scalable synthesis of black TiO_x photocatalyst for environmental remediation

• Massimo Zimbone,
• Giuseppe Cacciato,
• Mohamed Boutinguiza,
• Vittorio Privitera and
• Maria Grazia Grimaldi

Beilstein J. Nanotechnol. 2017, 8, 196–202, doi:10.3762/bjnano.8.21

• apparent in both spectra and they are related to the metallic Ti substrate. The presence of an amorphous phase is clearly recognizable in the spectrum in the low angle range. We ascribe such signal to an amorphous titanium oxide layer. The absorbance spectra (1 − R %) of the black TiOx film is reported in

• extremely high absorbance in the IR, visible and UV spectral range. Although it is composed of amorphous titanium oxide, it is able to degrade pollutants (methylene blue) dissolved in solution at a high rate (QE = 0.041%). This high activity is ascribed to the presence of trap states for holes in the

Optical and photocatalytic properties of TiO₂ nanoplumes

• Viviana Scuderi,
• Massimo Zimbone,
• Maria Miritello,
• Giuseppe Nicotra,
• Giuliana Impellizzeri and
• Vittorio Privitera

Beilstein J. Nanotechnol. 2017, 8, 190–195, doi:10.3762/bjnano.8.20

• interpreted the R and T measurements in terms of the Fresnel formulae [24], regardless of the effects of depolarization due to the roughness and non-uniformity of the surface. We assumed that the sample is constituted by two layers on a quartz substrate, namely a titanium oxide layer and a metallic titanium

• , respectively. The transmittance spectra reported in Figure 4a clearly indicate that the transmittance strongly depends on the thickness of the metallic film (dm), whereas the reflectance spectra are mostly influenced by the TiO2 layer parameters n∞, ωg, A, ω0, Γ, and d0 (thickness of titanium oxide layer). To

Diffusion of dilute gas in arrays of randomly distributed, vertically aligned, high-aspect-ratio cylinders

• Wojciech Szmyt,
• Carlos Guerra and
• Ivo Utke

Beilstein J. Nanotechnol. 2017, 8, 64–73, doi:10.3762/bjnano.8.7

• . The comparison of the two diffusion coefficients is shown in Figure 7. In the calculations, titanium tetraisopropoxide (TTIP), which is a widely used gas precursor in ALD of titanium oxide [37], was taken as an example. The molecular weight of the compound is M = 284.215 g/mol. The temperature was

Ferromagnetic behaviour of ZnO: the role of grain boundaries

• Boris B. Straumal,
• Svetlana G. Protasova,
• Andrei A. Mazilkin,
• Eberhard Goering,
• Gisela Schütz,
• Petr B. Straumal and
• Brigitte Baretzky

Beilstein J. Nanotechnol. 2016, 7, 1936–1947, doi:10.3762/bjnano.7.185

• charge of doped ZnO. However, if the concentration of oxygen changes, the whole structure of the nanograined zinc oxide should change, like for example the structure and properties of titanium oxide changes by the addition of dopants with different valence [37]. We compared in [8][9][26] the shape of our

Nano- and microstructured materials for in vitro studies of the physiology of vascular cells

• Alexandra M. Greiner,
• Adria Sales,
• Hao Chen,
• Sarah A. Biela,
• Dieter Kaufmann and
• Ralf Kemkemer

Beilstein J. Nanotechnol. 2016, 7, 1620–1641, doi:10.3762/bjnano.7.155

• the feature geometry and size. Some studies reported that proliferation of SMCs was negatively affected by PDMS microgrooves [204][205] and titanium oxide (TiO2) nanotube surfaces [31]. However, nanopits positively regulated SMC proliferation and gene expression [30]. In other studies, human SMCs from

• regulated their gene expression [197]. On titanium oxide (TiO2) nanotube surfaces, vascular SMCs expressed more SMC α-actin (a marker of differentiation) [129]. YAP/TAZ (Yes-associated protein/transcriptional coactivator with PDZ-binding motif) is a protein complex that induces the expression of

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

• diameters in the range from 80 to 200 nm belonged to the bismuth oxide powder (Figure 3). For titanium oxide the obtained particle diameters ranged from 18 to 50 nm. The lowest measured diameter values were registered for silicon oxide nanoparticles, the particle sizes of which were in the range from 8 to

• composite PAN/TiO2 nanofibres was observed for samples with the highest concentration of the strengthening phase, produced with a 20 cm distance between the nozzle and the collector. The measured diameter values of the composite nanofibres reinforced with titanium oxide included values in the range from 120

• these materials is similar, as evidenced by the results of studies of the optical properties. The refractive index values obtained for composites of PAN reinforced with titanium oxide and bismuth oxide are similar. This is due to the relatively small difference between the refractive index, for TiO2

NO gas sensing at room temperature using single titanium oxide nanodot sensors created by atomic force microscopy nanolithography

• Li-Yang Hong and
• Heh-Nan Lin

Beilstein J. Nanotechnol. 2016, 7, 1044–1051, doi:10.3762/bjnano.7.97

• Li-Yang Hong Heh-Nan Lin Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan 10.3762/bjnano.7.97 Abstract In this work, the fabrication of single titanium oxide nanodot (ND) resistive sensors for NO gas sensing at room temperature is reported. Two

• atomic force microscopy nanolithography methods, nanomachining and nano-oxidation, are employed. A single titanium nanowire (NW) is created first along with contact electrodes and a single titanium oxide ND is subsequently produced in the NW. Gas sensing is realized by the photo-activation and the photo

• potential application of single metal oxide NDs for gas sensing with a performance that is comparable with that of metal oxide nanowire gas sensors. Keywords: atomic force microscopy nanolithography; photo-activation; photo-recovery; resistive NO gas sensor; titanium oxide nanodot sensor; Introduction In