Fractional shot noise of an SU(N) Kondo system

• Damian Krychowski and
• Stanisław Lipiński

Beilstein J. Nanotechnol. 2026, 17, 515–540, doi:10.3762/bjnano.17.34

• , 15/8, 12/5, 35/12, …} and bN = {2, 1, 2/3, 1/2, 14/5, …}. is the quadratic Casimir operator in the free pseudospin momentum limit (t = 0). We see that, for Q = 1e, the inter-state charge transfer correlator is Qik = QiQk = 0. Correspondingly, successive values of N reach the numbers TχN ≈ aN. In

Probing internal continua and atomic ultrafast charge transfer within size-controlled nanoparticles by post-collision interaction in core-hole clock spectroscopy

• Johannes Lütgert,
• Erika Giangrisostomi,
• Nomi L. A. N. Sorgenfrei and
• Alexander Föhlisch

Beilstein J. Nanotechnol. 2026, 17, 505–514, doi:10.3762/bjnano.17.33

• % of the Auger signal originates solely from the shell, while, in the shell with eleven double layers, this value increases to over 60% [32]. Given that the QDs are covered with a surface layer of long-chain hydrocarbon ligands (hexadecylamine) and that such films can reach film thicknesses of 1–2 nm

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

• 2D materials are synthetic; hence, in principle, the defect concentration in them can be well above the equilibrium value as the time after their fabrication may not have been sufficient to reach equilibrium. 2D materials have a high surface-to-volume ratio, so that defects can easily be formed due

• 3D semiconductors, much higher concentrations of dopants are required to reach pronounced changes in the doping level and may be well within the metallization regime (from hybridization of dopant levels and band edges) rather than pure dopant ionization. Practically all experiments that probe carrier

• states in semiconducting TMDs seems out of reach, whereas it should be possible in metallic ones. Additionally, in metallic 2D materials, the magnetic moment of the defect may also be screened by the itinerant electrons giving rise to a Kondo resonance at the Fermi level. Such a spectroscopic fingerprint

Biomimetic nanoparticles in cancer photodynamic therapy: a review of targeted delivery systems and therapeutic outcomes

• Valentina I. Gorbacheva,
• Alexey S. Grabovoy,
• Polina S. Marukhina,
• Anastasiia O. Syrocheva and
• Ekaterina P. Kolesova

Beilstein J. Nanotechnol. 2026, 17, 396–422, doi:10.3762/bjnano.17.27

• circulation by the organs and the cells of the mononuclear phagocyte system (MPS), primarily the liver and spleen, and (ii) ineffective overcoming of biological barriers, that is, nanoparticles have to overcome numerous biological barriers to reach the target tissue, including extravasation from the

Beam shaping techniques for pulsed laser ablation in liquids: Unlocking tunable control of nanoparticle synthesis in liquids

• Sergio Molina-Prados,
• Nadezhda M. Bulgakova,
• Alexander V. Bulgakov,
• Jesus Lancis,
• Gladys Mínguez Vega and
• Carlos Doñate-Buendia

Beilstein J. Nanotechnol. 2026, 17, 309–342, doi:10.3762/bjnano.17.22

• . For shorter pulses, it the easier to reach higher Ppeak [5]. In femtosecond lasers, nonlinear optical absorption is a prominent factor due to the high Ppeak [167], giving raise to self-focusing, filamentation, and optical breakdown [168][169][170]. The nonlinear effects reduce the energy reaching the

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

• , were characterized through electrical transport measurements. The I–V characteristics show that, in the NbRe/Py bilayer, vortices reach higher critical velocities than those observed in the NbRe/Au structure. The analysis of the flux-flow instability within the Larkin–Ovchinnikov framework allows one

• microbridges reach critical vortex velocities values of v*NbRe/Au ≈ 740 m/s and v*NbRe/Py ≈ 1600 m/s, corresponding to a relaxation time of ≈ 150 ps and ≈ 24 ps. The values of τE obtained for the heterostructures can be compared to those reported in the literature for single NbRe microstrips of similar

Advancing nanolithography: a comprehensive review of materials for local anodic oxidation with AFM

• Matteo Lorenzoni

Beilstein J. Nanotechnol. 2026, 17, 275–291, doi:10.3762/bjnano.17.19

• density) can reach up to 100 nm height [34]. The protruding oxide observed by AFM represents only part of the total oxide volume. Because oxidation proceeds into the substrate and the formed oxide is less dense than the parent material, a comparable portion (typically 40–60%) develops beneath the surface

• -SPL), the fastest SPL technique, can reach writing speeds of up to 1 mm·s−1, enabling patterning rates of the order of 10–100 mm2·h−1 under optimal conditions [5]. This puts it in a similar throughput range to electron beam lithography (EBL), which, depending on beam current and pattern complexity

Gold nanoparticle-decorated reduced graphene oxide as a highly effective catalyst for the selective α,β-dehydrogenation of N-alkyl-4-piperidones

• Brenda Flore Kenyim,
• Mihir Tzalis,
• Marilyn Kaul,
• Robert Oestreich,
• Aysenur Limon,
• Chancellin Pecheu Nkepdep and
• Christoph Janiak

Beilstein J. Nanotechnol. 2026, 17, 218–238, doi:10.3762/bjnano.17.15

• reactant over time. However, AC was slightly less effective than rGO as a support because it required a longer reaction time to reach full conversion (8 h vs 7 or 6 h). This difference may be due to the surface chemistry and the predominantly microporous structure of activated carbon, which impedes

Structure-dependent thermochromism of PAZO thin films: theory and experiment

• Georgi Mateev,
• Dean Dimov,
• Nataliya Berberova-Buhova,
• Nikoleta Kircheva,
• Todor Dudev,
• Ludmila Nikolova,
• Elena Stoykova,
• Keehoon Hong,
• Dimana Nazarova,
• Silvia Angelova and
• Lian Nedelchev

Beilstein J. Nanotechnol. 2026, 17, 186–199, doi:10.3762/bjnano.17.12

• other was thermally treated in an oven to reach 200 °C (blue curves in Figure 3A). Spectrofluorimetry is a sensitive analytical technique that leverages fluorescence, where molecules absorb light and re-emit it at a longer wavelength. The process involves exciting a sample with a specific wavelength and

Development and in vitro evaluation of liposomes and immunoliposomes containing 5-fluorouracil and R-phycoerythrin as a potential phototheranostic system for colorectal cancer

• Raissa Rodrigues Camelo,
• Vivianne Cortez Sombra Vandesmet,
• Octavio Vital Baccallini,
• José de Brito Vieira Neto,
• Thais da Silva Moreira,
• Luzia Kalyne Almeida Moreira Leal,
• Claudia Pessoa,
• Daniel Giuliano Cerri,
• Maria Vitória Lopes Badra Bentley,
• Josimar O. Eloy,
• Ivanildo José da Silva Júnior and
• Raquel Petrilli

Beilstein J. Nanotechnol. 2026, 17, 97–121, doi:10.3762/bjnano.17.7

• differences were observed when formulations containing SPC 25 or DSPC 50 were compared to HSPC 50, suggesting that for certain lipid types and concentrations, the EE% may reach a plateau or become less responsive to compositional changes. A statistically significant difference was observed in the EE% of R-PE

Functional surface engineering for cultural heritage protection: the role of superhydrophobic and superoleophobic coatings – a comprehensive review

• Giuseppe Cesare Lama,
• Marino Lavorgna,
• Letizia Verdolotti,
• Federica Recupido,
• Giovanna Giuliana Buonocore and
• Bharat Bhushan

Beilstein J. Nanotechnol. 2026, 17, 63–96, doi:10.3762/bjnano.17.6

• −) can reach the metal surface. In Figure 6a, the production process and final application of a novel organic–inorganic composite coating, designed to provide advanced anticorrosion protection for bronze artifacts is described. The coating combines waterborne polyurethane (WPU) with the nanomaterials ZIF

• -8 (a metal-organic framework, MOF) and Ti3C2Tx (a 2D MXene, whose use was considered to enhance the tortuosity of the paths that gases, liquids, and ions must follow to reach the metal substrate [77]). PFDTES was used to introduce fluorinated groups for enhanced hydrophobicity. The final product was

Subdigital integumentary microstructure in Cyrtodactylus (Squamata: Gekkota): do those lineages with incipiently expressed toepads exclusively exhibit adhesive setae?

• Philipp Ginal,
• Yannick Ecker,
• Timothy Higham,
• L. Lee Grismer,
• Benjamin Wipfler,
• Dennis Rödder,
• Anthony Russell and
• Jendrian Riedel

Beilstein J. Nanotechnol. 2026, 17, 38–56, doi:10.3762/bjnano.17.4

Quantitative estimation of nanoparticle/substrate adhesion by atomic force microscopy

• Aydan Çiçek,
• Markus Kratzer,
• Christian Teichert and
• Christian Mitterer

Beilstein J. Nanotechnol. 2026, 17, 1–14, doi:10.3762/bjnano.17.1

• voltage of 0 V. Specifically, both work of separation and distance reach maximum values for NP diameters between 6 and 10 nm. NPs outside this size range exhibited lower work of separation values as well as shorter distances. With an AFM tip diameter smaller than 10 nm, it has to be assumed that the

• , these calculated values reach their minimum between 6 and 10 nm across all voltages, suggesting a transition point in NP behavior. Notably, lower values of F0 − 6πRγ mean a higher probability of sticking. This theoretical behavior matches well with our experimental observations, particularly with the

Optical bio/chemical sensors for vitamin B₁₂ analysis in food and pharmaceuticals: state of the art, challenges, and future outlooks

• Seyed Mohammad Taghi Gharibzahedi and
• Zeynep Altintas

Beilstein J. Nanotechnol. 2025, 16, 2207–2244, doi:10.3762/bjnano.16.153

• μg/mL in food), they emphasized performing an optimization study to reach a lower acceptable LOD for the regulatory standard [77]. Kumudha et al. characterized the HPLC peak of extracts of VB12 obtained from the green microalgae Chlorella vulgaris using MS/MS, selected ion recording, and multiple

• minimal color change at the test line (T) but a strong control line (C), leading to low T/C ratios (Figure 3B). In contrast, low VB12 levels yield an intense color at the test line and a weak control signal, indicating fewer conjugates reach the control line, thus high T/C ratios (Figure 3C) [115]. In a

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

• overnight sample incubation to reach 90 ± 5% RH, corresponding to very wet climate or air during precipitation. In addition, we refer to “hydrophilic conditions” in AFM for hydrophilic surfaces (APDMES silicon) scanned by a silicon tip. We found a vertical resolution (∆z) of 0.04 nm and a surface roughness

• 15 ± 5% was achieved by pumping nitrogen to the isolation chamber. The RH of 50 ± 5% was reached by controlling the mixing ratio between a dry and a wet stream of nitrogen, produced in a bubble flask. To reach a RH of 90 ± 5%, the sample was allowed to equilibrate overnight in the saturated chamber

Hartree–Fock interaction in superconducting condensate fractals

• Edward G. Nikonov,
• Yajiang Chen,
• Mauro M. Doria and
• Arkady A. Shanenko

Beilstein J. Nanotechnol. 2025, 16, 2177–2182, doi:10.3762/bjnano.16.150

• is suppressed; for our chosen microscopic parameters, this suppression can reach up to 20%. Therefore, an accurate analysis of condensate distribution and related quantities in quasicrystalline superconductors requires the comparison of results obtained with and without the HF interaction. Keywords

Microplastic pollution in Himalayan lakes: assessment, risks, and sustainable remediation strategies

• Sameeksha Rawat,
• S. M. Tauseef and
• Madhuben Sharma

Beilstein J. Nanotechnol. 2025, 16, 2144–2167, doi:10.3762/bjnano.16.148

• exacerbated by the fact that plastic pollution has a transboundary implication, thereby having the chance of ending up in other lakes’ sediments and water [11]. The existence of MPs in both Indus and Brahmaputra rivers suggests that the pollution from the highland lake and glacier may reach into downstream

• Treaty with an aim to constitute legally binding plastic reduction instruments along with MP reduction. Consequently, the European Union (EU) also deliberately limited incorporated MPs in the EU Microplastic Restriction Proposal of the REACH regulation of cosmetics, cleaning products, and agricultural

• microbeads added intentionally have been put into practice by some countries, such as Canada and the UK, where microbeads are banned in cosmetics [133]. The EU has placed restrictions under REACH regulation to restrict commercial use of MPs [134]. France has taken further steps by mandating that new washing

Toward clinical translation of carbon nanomaterials in anticancer drug delivery: the need for standardisation

• Michał Bartkowski,
• Francesco Calzaferri and
• Silvia Giordani

Beilstein J. Nanotechnol. 2025, 16, 2092–2104, doi:10.3762/bjnano.16.144

• Health and Safety Executive and the UK REACH framework play key roles. In the US, regulation is led by the Environmental Protection Agency and the Food and Drug Administration. For additional perspective, Japan’s Ministry of Economy, Trade and Industry has also developed guidelines for nanomaterials

• industries. Regulatory bodies are actively working to develop and refine frameworks, such as REACH and TSCA, as well as others, to address the unique properties and challenges posed by CNMs. Collaborative efforts are underway to establish standardised testing protocols and safety evaluation methods to ensure

Stereodiscrimination of guests in chiral organosilica aerogels studied by ESR spectroscopy

• Sebastian Polarz,
• Yasar Krysiak,
• Martin Wessig and
• Florian Kuhlmann

Beilstein J. Nanotechnol. 2025, 16, 2034–2054, doi:10.3762/bjnano.16.140

• necessary to reach separation is an important point. We have employed the two enantiomers of a chiral, nitroxide-based spin probe as guests in organo-modified macroporous host materials and applied ESR spectroscopy as a tool to investigate their rotational mobility. Using a well-established and commercially

• available material confirmed the method’s reliability. The data underline how crucial the choice of the right solvent is if one wants to reach sufficient selectivity. Together with a series of custom-made organosilica aerogels, it is shown that adjusting solvent and surface properties so that the two

• enantiomers (+) and (−) experience a different chemical environment is key. Otherwise, there might be a dynamic equilibrium between surface-adsorbed and mobile spin probes without stereodifferentiation. With this knowledge, it was possible to reach higher selectivity values than for the commercial material. A

Laser ablation in liquids for shape-tailored synthesis of nanomaterials: status and challenges

• Natalie Tarasenka

Beilstein J. Nanotechnol. 2025, 16, 1963–1997, doi:10.3762/bjnano.16.137

• progress in the pulsed laser ablation in liquid (PLAL) field has been achieved by getting new insights into the process of laser ablation, its stages, and mechanisms allowing to significantly boost the productivity and reach gram-scale NP production [1][4]. Another direction of the research is the control

• generation of shockwaves and formation of cavitation bubbles, which typically have a lifetime of several microseconds. During its evolution, the cavitation bubble expands to reach the equilibrium with the confining liquid, after which the shrinking stage begins, which involves the ablated material moving

• absorbed and dissipated energy is usually considered [63][67][68][69][70]: where Eabs is the energy absorbed by the NP, Emeltth is the thermal energy required to reach the melting point Tm, Emelt represents the melting energy, and Eboilth represents the thermal energy required to heat the system from the

Evaluating metal-organic precursors for focused ion beam-induced deposition through solid-layer decomposition analysis

• Benedykt R. Jany,
• Katarzyna Madajska,
• Aleksandra Butrymowicz-Kubiak,
• Franciszek Krok and
• Iwona B. Szymańska

Beilstein J. Nanotechnol. 2025, 16, 1942–1951, doi:10.3762/bjnano.16.135

• an onset below 100 °C are considered suitable for efficient transport through a GIS. Those with higher sublimation points are unlikely to reach the deposition zone and are thus disqualified early. Despite its advantages, EIMS pre-screening has significant limitations; it cannot determine the final

Quantum circuits with SINIS structures

• Mikhail Tarasov,
• Mikhail Fominskii,
• Aleksandra Gunbina,
• Artem Krasilnikov,
• Maria Mansfeld,
• Dmitrii Kukushkin,
• Andrei Maruhno,
• Valeria Ievleva,
• Mikhail Strelkov,
• Daniil Zhogov,
• Konstantin Arutyunov,
• Vyacheslav Vdovin,
• Vladislav Stolyarov and
• Valerian Edelman

Beilstein J. Nanotechnol. 2025, 16, 1931–1941, doi:10.3762/bjnano.16.134

• created. The process of electron energy relaxation continues until their characteristic times reach the tunneling time determined by the parameters of the SIN transition, that is, the transparency of the barrier, the thickness of the normal metal film, and the diffusion rate of electrons in it. For

PEGylated lipids in lipid nanoparticle delivery dynamics and therapeutic innovation

• Peiyang Gao

Beilstein J. Nanotechnol. 2025, 16, 1914–1930, doi:10.3762/bjnano.16.133

• an increased molar fraction from 1% to 5% [32]. In primary cortical neurons treated with 50 nmol antisense oligonucleotide for 24 h, LNPs with 1 mol % PEG achieved up to 80% mRNA knockdown. In contrast, LNPs with 3% and 5% PEG did not reach 50% knockdown even at the highest dosage. This pattern held

Programmable soliton dynamics in all-Josephson-junction logic cells and networks

• Vsevolod I. Ruzhickiy,
• Anastasia A. Maksimovskaya,
• Sergey V. Bakurskiy,
• Andrey E. Schegolev,
• Maxim V. Tereshonok,
• Mikhail Yu. Kupriyanov,
• Nikolay V. Klenov and
• Igor I. Soloviev

Beilstein J. Nanotechnol. 2025, 16, 1883–1893, doi:10.3762/bjnano.16.131

• quasiparticle current () that flows as a junction switches. This larger current provides a stronger driving force to the next junction in the line, causing it to reach its critical threshold and switch more rapidly, thus increasing the overall propagation velocity of the soliton. The functionality of the KICK

Low-temperature AFM with a microwave cavity optomechanical transducer

• Ermes Scarano,
• Elisabet K. Arvidsson,
• August K. Roos,
• Erik Holmgren,
• Riccardo Borgani,
• Mats O. Tholén and
• David B. Haviland

Beilstein J. Nanotechnol. 2025, 16, 1873–1882, doi:10.3762/bjnano.16.130

• on a silicon substrate. Each unit cell in the pattern contains different shapes as shown in the SEM image in Figure 6a. The tapered arms of crosses and ribbons shrink to reach a nominal minimum feature size of 20 nm. Figure 6b shows a FM-AFM image of the 1 µm × 1 µm scan area corresponding to the