Upcycling agroindustrial waste into graphene oxide supports for gold nanoparticles: toward sustainable nanomaterials

• Juan Marcos Castro-Tapia,
• Selene Acosta,
• Hiram Joazet Ojeda-Galván,
• Elsie Evelyn Araujo-Palomo,
• Edgar Giovanni Villabona-Leal and
• Mildred Quintana

Beilstein J. Nanotechnol. 2026, 17, 489–504, doi:10.3762/bjnano.17.32

• atoms in aromatic domains and the D band around 1350 cm−1, associated with defects in the crystal lattice such as edges, vacancies, and oxygenated functional groups [38]. The intensity ratio between these peaks (ID/IG) is commonly used as an indicator of structural disorder or defect density in the

• Raman and XPS results that indicate substantial structural disorder and a significant contribution from oxygenated functional groups. Agro-GOX (Figure 6m–p) displays a more homogeneous dispersion and fewer heavily aggregated regions compared with Agro-GOP. The sheets appear somewhat smoother and more

• sheet-like, although they still show evidence of partial structural disorder along their edges and within the basal planes. This intermediate morphology matches the spectroscopic observations, which point to a moderate defect density and a balance between disordered and graphitic domains. Agro-GOC

Defects and defect-mediated engineering of two-dimensional materials: challenges and open questions

• Arkady V. Krasheninnikov,
• Matthias Batzill,
• Anouar-Akacha Delenda,
• Marija Drndić,
• Chris Ewels,
• Katharina J. Franke,
• Mahdi Ghorbani-Asl,
• Alexander Holleitner,
• Ado Jorio,
• Ute Kaiser,
• Daria Kieczka,
• Hannu-Pekka Komsa,
• Jani Kotakoski,
• Manuel Längle,
• David Lamprecht,
• Yun Liu,
• Steven G. Louie,
• Janina Maultzsch,
• Thomas Michely,
• Katherine Milton,
• Anna Niggas,
• Hanako Okuno,
• Joshua A. Robinson,
• Marika Schleberger,
• Bruno Schuler,
• Alexander Shluger,
• Kazu Suenaga,
• Kristian S. Thygesen,
• Richard A. Wilhelm,
• E. Harriet Åhlgren and
• Carla Bittencourt

Beilstein J. Nanotechnol. 2026, 17, 454–488, doi:10.3762/bjnano.17.31

Ferroelectric nanodot reservoir for neuromorphic computing

• Anna Razumnaya,
• Yuri Tikhonov,
• Dmitrii Naidenko,
• Léo Boron,
• Valerii Vinokur and
• Igor Lukyanchuk

Beilstein J. Nanotechnol. 2026, 17, 352–364, doi:10.3762/bjnano.17.24

• node within a predefined circuit. However, such approaches often neglect the rich collective dynamics emerging from ensembles of interacting nonlinear elements, an aspect especially compelling when analyzed through the lens of statistical physics models such as the Ising spin system with disorder

• assigned to reflect intrinsic material inhomogeneity. These coercive fields are taken from a static random distribution that remains fixed throughout the simulation, emulating quenched disorder and the inherent variability of switching thresholds in nanoscale ferroelectrics. The polarization state of each

Interconnection morphology effects on the radio frequency response of carbon nanotube sponges

• Manuela Scarselli,
• Javad Rezvani,
• Zeno Zuccari,
• Mattia Scagliotti and
• Simone Tocci

Beilstein J. Nanotechnol. 2026, 17, 343–351, doi:10.3762/bjnano.17.23

• (Figure 4). The spectral range studied was 1100–1800 cm−1, where we observed the contributions from the D and G bands. The D band is associated with the presence of defects and disorder in the sp2 lattice, while the G band is a fingerprint of the sp2 order [31]. The D band is located at 1345 ± 2 cm−1 and

Fast vortex dynamics and relaxation times in NbRe-based heterostructures

• Francesco De Chiara,
• Zahra Makhdoumi Kakhaki,
• Francesco Avitabile,
• Francesco Colangelo,
• Abhishek Kumar,
• Carmine Attanasio and
• Carla Cirillo

Beilstein J. Nanotechnol. 2026, 17, 292–302, doi:10.3762/bjnano.17.20

• superconducting coherence. This phenomenon, known as flux-flow instability (FFI), depends on several factors such as structural disorder and defects [3], pinning mechanisms [4][5], thermal effects [6], and sample geometry [7]. FFI is effectively described by the Larkin–Ovchinnikov (LO) model [8], which relates

• strongly depend on the microscopic properties of the superconductor and on the degree of electronic disorder [1]. In this context, NbRe has emerged as a promising material that exhibits exceptionally fast vortex dynamics [19]. Extensive structural characterizations performed by X-ray diffraction have shown

• characteristics, together with disorder-dominated transport, favor very short temperature-independent quasiparticle relaxation times of the order of hundreds of picoseconds [22] making NbRe-based films particularly attractive for studying non-equilibrium effects and for the realization of fast superconducting

Reduced graphene oxide paper electrode for lithium-ion cells – towards optimized thermal reduction

• Agata Pawłowska,
• Magdalena Baran,
• Stefan Marynowicz,
• Aleksandra Izabela Banasiak,
• Adrian Racki,
• Adrian Chlanda,
• Tymoteusz Ciuk,
• Marta Wolczko and
• Andrzej Budziak

Beilstein J. Nanotechnol. 2026, 17, 24–37, doi:10.3762/bjnano.17.3

• that the interlayer spacing remains relatively stable, while higher temperatures, particularly 800 °C, may lead to partial degradation and increased structural disorder. The obtained rGO paper sheets underwent electrochemical properties characterization; galvanostatic charge–discharge tests were

Improving magnetic properties of Mn- and Zn-doped core–shell iron oxide nanoparticles by tuning their size

• Dounia Louaguef,
• Ghouti Medjahdi,
• Sébastien Diliberto,
• Klaus M. Seemann,
• Thomas Gries,
• Joelle Bizeau,
• Damien Mertz,
• Eric Gaffet and
• Halima Alem

Beilstein J. Nanotechnol. 2025, 16, 2285–2295, doi:10.3762/bjnano.16.157

• magnetic performance due to their reduced surface spin disorder [7]. Polyhedral NPs exhibit higher magnetic saturation, less spin canting, and higher SAR values than spherical NPs. For instance, Kasparis et al. demonstrated that polyhedral Zn0.4Fe2.6O4 NPs exhibited SAR values more than double those of

Geometry-controlled engineering of the low-temperature proximity effect in normal metal–superconductor junctions

• Munisa A. Tomayeva,
• Vyacheslav D. Neverov,
• Andrey V. Krasavin,
• Alexei Vagov and
• Mihail D. Croitoru

Beilstein J. Nanotechnol. 2025, 16, 2265–2273, doi:10.3762/bjnano.16.155

• performance in superconducting quantum circuits, Josephson junctions, or topological superconducting platforms, where the strength and range of the induced pairing correlations are critical. Future work could extend our analysis to incorporate the effects of disorder, finite temperature, spin–orbit coupling

Ultrathin water layers on mannosylated gold nanoparticles

• Maiara A. Iriarte Alonso,
• Jorge H. Melillo,
• Silvina Cerveny,
• Yujin Tong and
• Alexander M. Bittner

Beilstein J. Nanotechnol. 2025, 16, 2183–2198, doi:10.3762/bjnano.16.151

• low or zero intensities) [26]. The PEG signals correspond, as expected, quite well to the infrared spectrum, with a strong peak at 2880 cm−1. This feature points to a lack of local order, which is presumably based on disorder of the PEG chain (ordered alkyl chains, for example, yield no signal from

• CH2). Moreover, the peak is unusually broad, possibly due to the complex shape of the disordered PEG chains. However, this type of disorder refers to the conformation of the PEG chains only; altogether, the C–H stretching vibrations must have a preferred orientation with respect to the gold surface

• groups are again oriented, but differently from those in the PEG AuNPs. This shows directly that the dimannoside strongly affects the conformations of PEG and alkyl chains. We can exclude disorder and propose a stretched-out geometry based on the relatively narrow bands. The dimannoside must be covered

Electron transport through nanoscale multilayer graphene and hexagonal boron nitride junctions

• Aleksandar Staykov and
• Takaya Fujisaki

Beilstein J. Nanotechnol. 2025, 16, 2132–2143, doi:10.3762/bjnano.16.147

• perpendicular to the layers in the stacking direction. We compared the decay of the current with the number of layers and evaluated the ability of h-BN to filter currents as a material coating. To investigate the effect of disorder, we included two major defects in the graphene lattice, namely, nitrogen doping

• -dimensional lattice curvature [6]. The in-plane electron transport is a result of the high charge carrier mobility in the two-dimensional π-conjugated electron system. Deviation from the perfect hexagonal lattice by the insertion of heteroatoms, structural defects, or local disorder, creates electron trapping

Photocatalytic degradation of ofloxacin in water assisted by TiO₂ nanowires on carbon cloth: contributions of H₂O₂ addition and substrate absorbability

• Iram Hussain,
• Lisha Zhang,
• Zhizhen Ye and
• Jin-Ming Wu

Beilstein J. Nanotechnol. 2025, 16, 1567–1579, doi:10.3762/bjnano.16.111

• , respectively [21][22][23]. Characteristic peaks corresponding to brookite TiO2 can also be seen in the XRD pattern and the Raman spectrum of CC/NW-450 °C. The Raman spectrum in Figure 2b also indicates the degree of disorder in the carbon cloth by the ratio (ID/IG) of the disorder-induced (D) band (≈1350 cm−1

Enhancing the photoelectrochemical performance of BiOI-derived BiVO₄ films by controlled-intensity current electrodeposition

• Huu Phuc Dang,
• Khanh Quang Nguyen,
• Nguyen Thi Mai Tho and
• Tran Le

Beilstein J. Nanotechnol. 2025, 16, 1289–1301, doi:10.3762/bjnano.16.94

• absorption edge intersection, as shown Figure 3b. Samples prepared with higher electrodeposition currents and larger VO(acac)2 amounts exhibited redshifted absorption edges, indicating enhanced light harvesting due to improved crystallinity and reduced disorder. XRD and Raman spectroscopy confirmed these

Single-layer graphene oxide film grown on α-Al₂O₃(0001) for use as an adsorbent

• Shiro Entani,
• Mitsunori Honda,
• Masaru Takizawa and
• Makoto Kohda

Beilstein J. Nanotechnol. 2025, 16, 1082–1087, doi:10.3762/bjnano.16.79

• (around 2900 cm−1). The presence of intense D and D+G peaks is indicative of the existence of graphene film disorder. This phenomenon can be attributed to the reduced size of the graphene grains that are produced at lower growth temperatures [18]. Following the oxidation process, a broadening of all peaks

Soft materials nanoarchitectonics: liquid crystals, polymers, gels, biomaterials, and others

• Katsuhiko Ariga

Beilstein J. Nanotechnol. 2025, 16, 1025–1067, doi:10.3762/bjnano.16.77

• is orientational and rotational disorder. These materials are distinguished by their high degree of plasticity and diffusivity. In the case of ionic compounds, this results in the formation of an ion-conducting phase, rendering them an intriguing material for use as a transport field for target ions

Time-resolved probing of laser-induced nanostructuring processes in liquids

• Maximilian Spellauge,
• David Redka,
• Mianzhen Mo,
• Changyong Song,
• Heinz Paul Huber and
• Anton Plech

Beilstein J. Nanotechnol. 2025, 16, 968–1002, doi:10.3762/bjnano.16.74

• imaging with wide-angle crystal diffraction, additional detectors near the specimen captured crystal Bragg reflections, offering new insights into photoinduced melting. The study revealed that local atomic disorder begins at the surface before the overall lattice expands, with the melt front progressing

Structural and magnetic properties of microwave-synthesized reduced graphene oxide/VO₂/Fe₂O₃ nanocomposite

• Sumanta Sahoo,
• Ankur Sood and
• Sung Soo Han

Beilstein J. Nanotechnol. 2025, 16, 921–932, doi:10.3762/bjnano.16.70

• components caused more disorder and defects in the carbon structure [36]. Furthermore, the peak at ≈2700 cm−1 represents the characteristic 2D band of graphene. The Raman pattern of rGO represents such characteristic D band at ≈1343 cm−1, G band at ≈1582.4 cm−1, and 2D band at ≈2690 cm−1, respectively

Ar⁺ implantation-induced tailoring of RF-sputtered ZnO films: structural, morphological, and optical properties

• Manu Bura,
• Divya Gupta,
• Arun Kumar and
• Sanjeev Aggarwal

Beilstein J. Nanotechnol. 2025, 16, 872–886, doi:10.3762/bjnano.16.66

• merges completely with disorder-induced broad band at higher fluences. Moreover, the deconvolution of the A1 (LO) Raman peak affirms the presence of defect-related Raman modes in the implanted samples. A gradual reduction in crystallinity of the implanted ZnO films with increasing ion fluence is observed

• , defects, and interstitials are induced through the interaction between energetic ions and the host material, resulting in structural modification and thus alteration in lattice dynamics of the host material [10]. The implantation-induced disorder can be qualitatively examined using Raman spectroscopy

• ] reported the presence of an A1 (LO) Raman mode and a disorder-induced band at low wavenumbers in cadmium-doped zinc oxide films irradiated using 120 MeV Ag9+ and 80 MeV O6+ ions at fluences of 1 × 1013 and 3 × 1013 ions·cm−2. Further, few studies [16][17] reported the emergence of optical longitudinal

Synchrotron X-ray photoelectron spectroscopy study of sodium adsorption on vertically arranged MoS₂ layers coated with pyrolytic carbon

• Alexander V. Okotrub,
• Anastasiya D. Fedorenko,
• Anna A. Makarova,
• Veronica S. Sulyaeva,
• Yuliya V. Fedoseeva and
• Lyubov G. Bulusheva

Beilstein J. Nanotechnol. 2025, 16, 847–859, doi:10.3762/bjnano.16.64

• Raman spectrum of the PyC-MoS2 sample, so the coating with PyC film does not destroy the structure of the MoS2 film. The Raman spectra of PyC and PyC-MoS2 show a peak at 1600 cm−1 corresponding to the in-plane stretching of C=C bonds (G mode) and a peak at 1355 cm−1 caused by the disorder in the

• graphite lattice (D mode) [40]. The position of the G mode is higher than the position of the G peak at 1582 cm–1 for crystalline graphite and graphene [41], indicating the disorder in the layers and their functionalization. In fact, the intensity ratio of the D to G peaks (ID/IG) of 0.87 is relatively

Changes of structural, magnetic and spectroscopic properties of microencapsulated iron sucrose nanoparticles in saline

• Sabina Lewińska,
• Pavlo Aleshkevych,
• Roman Minikayev,
• Anna Bajorek,
• Mateusz Dulski,
• Krystian Prusik,
• Tomasz Wojciechowski and
• Anna Ślawska-Waniewska

Beilstein J. Nanotechnol. 2025, 16, 762–784, doi:10.3762/bjnano.16.59

• the alginate implies a slight disordering of the crystal structure of iron oxides. This disorder may result from more structural and local point defects and unsaturated bonds, making it more prone to forming an ionic cross-linking complex. In this context, the coexistence of oxyhydroxide with Fe3

Nanostructured materials characterized by scanning photoelectron spectromicroscopy

• Matteo Amati,
• Alexey S. Shkvarin,
• Alexander I. Merentsov,
• Alexander N. Titov,
• María Taeño,
• David Maestre,
• Sarah R. McKibbin,
• Zygmunt Milosz,
• Ana Cremades,
• Rainer Timm and
• Luca Gregoratti

Beilstein J. Nanotechnol. 2025, 16, 700–710, doi:10.3762/bjnano.16.54

• , were considered to occur during the growth process, leading to NiO samples with variable properties. Raman spectroscopy indicated changes between the relative intensity of first order modes and the 2M mode due to the variable lattice disorder induced in the samples during the growth process

Feasibility analysis of carbon nanofiber synthesis and morphology control using a LPG premixed flame

• Iftikhar Rahman Bishal,
• Muhammad Hilmi Ibrahim,
• Norikhwan Hamzah,
• Mohd Zamri Mohd Yusop,
• Faizuan Bin Abdullah,
• I Putu Tedy Indrayana and
• Mohd Fairus Mohd Yasin

Beilstein J. Nanotechnol. 2025, 16, 581–590, doi:10.3762/bjnano.16.45

• . A higher presence of defects was found before in CNFs via Raman spectroscopy [12]. A slightly elevated defect density was also observed in CNTs derived from LPG [16][31]. The D band and G band intensities show an ID/IG ratio of more than 1.13, which is a clear indicator for high disorder and

Nanomaterials in targeting amyloid-β oligomers: current advances and future directions for Alzheimer's disease diagnosis and therapy

• Shiwani Randhawa,
• Trilok Chand Saini,
• Manik Bathla,
• Rahul Bhardwaj,
• Rubina Dhiman and
• Amitabha Acharya

Beilstein J. Nanotechnol. 2025, 16, 561–580, doi:10.3762/bjnano.16.44

• , these therapies hold the potential to significantly improve cognitive outcomes and quality of life for individuals affected by AD, underscoring the importance of targeted interventions in combating this complex neurodegenerative disorder. Conventional approaches have shown promise in the detection and

N₂⁺-implantation-induced tailoring of structural, morphological, optical, and electrical characteristics of sputtered molybdenum thin films

• Usha Rani,
• Kafi Devi,
• Divya Gupta and
• Sanjeev Aggarwal

Beilstein J. Nanotechnol. 2025, 16, 495–509, doi:10.3762/bjnano.16.38

• significantly relative to as-deposited Mo films of the same nominal thickness, as illustrated in Table 1. Nitrogen ions during implantation induced many lattice defects, including point defects, dislocations, and distortions, in the Mo crystal lattice, resulting in microstructural disorder and amorphization

Impact of adsorbate–substrate interaction on nanostructured thin films growth during low-pressure condensation

• Alina V. Dvornichenko,
• Vasyl O. Kharchenko and
• Dmitrii O. Kharchenko

Beilstein J. Nanotechnol. 2025, 16, 473–483, doi:10.3762/bjnano.16.36

• types of atoms in the high-entropy alloy and z(m) = −2,…,2. In the two-dimensional lattice presentation, the interaction strength δ(r) with the randomly distributed z(m) = z(r) represents the δ-correlated quenched spatial disorder with ⟨δ(r)⟩ = δ0; Δ is the strength of the spatial disorder. Next, we

Pulsed laser in liquid grafting of gold nanoparticle–carbon support composites

• Madeleine K. Wilsey,
• Teona Taseska,
• Qishen Lyu,
• Connor P. Cox and
• Astrid M. Müller

Beilstein J. Nanotechnol. 2025, 16, 349–361, doi:10.3762/bjnano.16.26

• characteristic C 1s π–π* shake-up peak was larger and broadened in the pulsed laser-grafted gold nanoparticle–carbon fiber paper composite, compared to hydrophilic carbon fiber paper (Figure 4), indicating disorder and contributions from sp2- and sp3-hybridized carbon [58], as expected from the nanosecond laser