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

• heating capability, a critical requirement for hyperthermia applications. The temperature increases of 6.5 and 9.6 °C under 536 and 796 kHz, respectively, surpass the thermal threshold required to induce apoptosis in cancer cells (42–46 °C). The fast heating kinetics observed here are comparable to those

• reported by Shabalkin et al., where ZnFe2O4@MnFe2O4 NPs reached the desired hyperthermic range (42 °C) within seconds under similar field conditions [24]. In contrast, other studies with single-phase MnFe2O4 or ZnFe2O4 NPs often require higher magnetic field intensities to achieve comparable heating rates

Visualizing nanostructures in supramolecular hydrogels: a correlative study using confocal and cryogenic scanning electron microscopy

• Shaun M. Smith,
• Ferdinando Malagreca,
• Jacqueline Hicks,
• Giuseppe Mantovani,
• David B. Amabilino,
• Christopher Parmenter and
• Lluïsa Pérez-García

Beilstein J. Nanotechnol. 2025, 16, 2274–2284, doi:10.3762/bjnano.16.156

• Information File 4: Additional figures and tables. Supporting Information File 5: CLSM Z-stack animation video of DPP-BC (low fibre density) over the course of 42 frames. Supporting Information File 6: CLSM Z-stack animation video of DPP-BC (high fibre density) over the course of 29 frames. Acknowledgements

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

• interface yields a continuous order parameter profile across the interface. In realistic systems, finite reflectivity due to band mismatch leads to partial suppression of Andreev reflection and reduced proximity strength [6][42]. Even small interface imperfections can significantly impact superconducting

• hybrid devices by enhancing normal quasiparticle scattering at the expense of Cooper pair transport [42]. Although interface transparency can be tuned by chemical surface treatments or in situ growth [43], an alternative and less explored approach is to control the proximity effect via the geometry of

Chiral plasmonic nanostructures fabricated with circularly polarized light

• Tian Qiao and
• Ming Lee Tang

Beilstein J. Nanotechnol. 2025, 16, 2245–2264, doi:10.3762/bjnano.16.154

• many morphologically distinct cPNSs [29][30][31][32][33][34][35]. Separately, chiral organic scaffolds (e.g., DNA, DNA origami and peptides) have also been used to coax achiral plasmonic nanocrystals (NCs) into chiral assemblies [36][37][38][39][40][41][42][43][44][45][46][47][48]. The tetragonal and

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

• 55% to 74%. Hence, it is important to note that the absorption rates vary greatly depending on the specific food items; for instance, egg products, fish, and lean meat have an absorption rate of 24% to 36% (VB12 dose 0.30–0.94 µg), 42% (dose 1.95–2.18 µg), and 65% (dose 0.95 µg), respectively [34][35

• increase the intake rate of this vitamin during pregnancy and lactation as VB12 deficiency can cause some fully reversible damage to newborns’ brain and nervous system health [41][42]. A recent study revealed that VB12 deficiency should be considered one of the most important parameters in infants with

• the total content of VB12 (42 μg/100 g; Ado-Cbl as the main isomer) purified from the halotolerant green alga, Dunaliella salina V-101 using a luminometer and in a polystyrene cuvette, where VB12 served as the recognition analyte, the luminol-based reaction acted as the indicator system, and the

Electromagnetic study of a split-ring resonator metamaterial with cold-electron bolometers

• Ekaterina A. Matrozova,
• Alexander V. Chiginev,
• Leonid S. Revin and
• Andrey L. Pankratov

Beilstein J. Nanotechnol. 2025, 16, 2199–2206, doi:10.3762/bjnano.16.152

• , black curve) outer ring diameter dout = 80 μm, inner ring diameter din = 70 μm, period P = 86 μm; (b, red curve) dout = 64 μm, din = 56 μm, P = 68.8 μm; (c, blue curve) dout = 48 μm, din = 42 μm, P = 51.6 μm; (d, purple curve) dout = 32 μm, din = 28 μm, P = 34.4 μm. Bottom: AFC of the 19 SRR-based

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

• concentrated carbohydrate solution (more than 40% of the total aqueous volume) provide a macromolecular crowding environment which diminishes particle interaction [42]. The dimanno-AuNPs used in this research were produced in a solution of ca. 50% dimannoside ligand, sufficient to decrease the agglomeration

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

• more than 99% removal efficiencies under controlled conditions [42]. Sedimentation methods are frequently used in wastewater treatment plants, making use of the density difference between MPs and water. But it is difficult to trap particles measuring less than 10 µm with such processes. Physical

• alpine ecosystems [46]. Tiwari et al. found that psychrophilic lipases and esterases found in marine environments degrade MPs in low-temperature experiments, lending credibility to their use in Himalayan habitats [42]. The ecological significance of cryophilic fungal species has been highlighted by

• recently demonstrated the effectiveness of biofilms formed by engineered microbial consortia in expediting enzymatic degradation in response to specific environmental conditions, such as low temperatures [42]. Biofilms are very beneficial in habitats such as Himalayan lakes. Biofilm-based remediation

Quality by design optimization of microemulsions for topical delivery of Passiflora setacea seed oil

• Daniel T. Pereira,
• Douglas Dourado,
• Danielle T. Freire,
• Dayanne L. Porto,
• Cícero F. S. Aragão,
• Myla L. de Souza,
• Guilherme R. S. de Araujo,
• Ana Maria Costa,
• Wógenes N. Oliveira,
• Anne Sapin-Minet,
• Éverton N. Alencar and
• Eryvaldo Sócrates T. Egito

Beilstein J. Nanotechnol. 2025, 16, 2116–2131, doi:10.3762/bjnano.16.146

• difference (p < 0.05) in pH compared with earlier time points. Although the reduction was modest, from pH 6.4 ± 0.1 to 5.9 ± 0.3, it is hypothesized to result from a combination of physicochemical and microbiological factors [42]. One possible explanation involves the oxidative or hydrolytic degradation of

• shift [42][43]. These findings underscore the importance of incorporating preservatives into the MEgel formulation to mitigate such instability. It is worth noting that although microemulsified systems are thermodynamically stable, their individual excipients remain vulnerable to instability phenomena

Rapid synthesis of highly monodisperse AgSbS₂ nanocrystals: unveiling multifaceted activities in cancer therapy, antibacterial strategies, and antioxidant defense

• Funda Ulusu,
• Adem Sarilmaz,
• Yakup Ulusu,
• Faruk Ozel and
• Mahmut Kus

Beilstein J. Nanotechnol. 2025, 16, 2105–2115, doi:10.3762/bjnano.16.145

• -dependent studies, larger nanoparticles tend to have higher MICs for E. coli, indicating that membrane permeability and nanoparticle size are key factors affecting antimicrobial strength [42]. Of particular interest is the high resistance exhibited by B. subtilis, which demonstrated an MIC of 5.0 mg/mL and

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

• peroxidase, or UV-assisted photo-Fenton processes. Notably, oxidised CNOs degrade more readily than their pristine counterparts, due to their higher defect density and greater abundance of oxygen-containing functional groups [42]. These findings highlight that the biodegradability of CNMs strongly depends on

Molecular and mechanical insights into gecko seta adhesion: multiscale simulations combining molecular dynamics and the finite element method

• Yash Jain,
• Saeed Norouzi,
• Tobias Materzok,
• Stanislav N. Gorb and
• Florian Müller-Plathe

Beilstein J. Nanotechnol. 2025, 16, 2055–2076, doi:10.3762/bjnano.16.141

• structure similar to a fiber-reinforced elastomer, with a fibrillar nature that leads to anisotropic mechanical properties [40][41][42]. Rather than explicitly resolving individual fibers and the surrounding amorphous matrix, we represented the spatula with a coarse-grained bead network whose anisotropic

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

• probes with surfaces [40]. Mastai and coworkers have used ESR spectroscopy to probe the chirality of crystals [41]. Our group used ESR to investigate the rotational dynamics of paramagnetic spin probes in functionalized, mesoporous organosilica materials [42][43][44][45][46]. Using 3-carboxypropyl (3CP

• ) as a spin probe, we observed that the ESR spectra consist of two species, one rotating freely and the other one much more slowly with tumbling dynamics [42]. Because these two species can be correlated to 3CP in the solvent (fast rotation) and 3CP adsorbed at the surfaces (slow dynamics

• also discussed in several of our past papers [42][43][44][45][46]. Exemplarily, Figure 3 shows the behavior in an achiral silica aerogel. Because of the large pore size, the spin probe behaves almost like in a free solution. The spectra recorded at T = 273 K are characteristic of a freely rotating 3CP

Beyond the shell: exploring polymer–lipid interfaces in core–shell nanofibers to carry hyaluronic acid and β-caryophyllene

• Aline Tavares da Silva Barreto,
• Francisco Alexandrino-Júnior,
• Bráulio Soares Arcanjo,
• Paulo Henrique de Souza Picciani and
• Kattya Gyselle de Holanda e Silva

Beilstein J. Nanotechnol. 2025, 16, 2015–2033, doi:10.3762/bjnano.16.139

• administration via dressings made of biocompatible polymers containing lipid nanosystems [41][42][43]. Numerous researchers have successfully encapsulated nanoemulsions into nanofibers for diverse applications, including studies by Kaur et al. (2024) showing superior wound healing with bakuchiol nanoemulsion

The cement of the tube-dwelling polychaete Sabellaria alveolata: a complex composite adhesive material

• Emilie Duthoo,
• Aurélie Lambert,
• Pierre Becker,
• Carla Pugliese,
• Jean-Marc Baele,
• Arnaud Delfairière,
• Matthew J. Harrington and
• Patrick Flammang

Beilstein J. Nanotechnol. 2025, 16, 1998–2014, doi:10.3762/bjnano.16.138

• their byssus [40]. For instance, His residues in the His-rich terminal domains of preCols, the collagenous proteins that make up over 95% of the byssal threads core, can form metal coordination cross-links with zinc ions [41][42]. In the byssal plaque, mfp-4, the protein linking the plaque to the thread

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

• ions (Ag+, Fe3+, Co+) and complexes (W(CO)6) [41]. These additives are known to promote growth of nonspherical shapes in colloidal chemical synthesis by preferential adsorption on specific crystalline planes. Another example of the influence of ligand concentration on nanoparticle shape is given in [42

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

• only to conduct full-scale tests of the SINIS detectors, but will also expand the capabilities of the BTA observatory to the subterahertz range and use it not only for observations, but also for testing new technologies of subterahertz detectors. According to [42], the thermodynamic temperature of the

• the BTA and can be measured with a signal-to-noise ratio greater than unity by the described receiver even without diagram. Approximate estimates for observing Jupiter and other planets are made and compared with figures from [42] (central frequency fc = 100 GHz, bandwidth 10%, Δf = 10 GHz. The

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

• maleimide groups are effective for ligand attachment to LNP surface and targeted delivery [40][41]. A dual-targeted LNP system composed of two functionalized PEG lipids was created for ligand-mediated targeting of DNA-loaded LNPs to breast cancer cells [42]. DSPE-PEG-folate was directly incorporated into

• maleimide groups quenched by adding ʟ-cysteine [42][44]. The dual-targeted LNPs exhibited enhanced performance in vitro across breast cancer cell lines including MCF7, MDA-mb453, and SKBR3. In HER2-overexpressing SKBR3 cells, the dual-targeted LNPs achieved 75% transfection efficiency and significantly

• outperformed single-ligand LNPs with folate or Herceptin only [42]. In vivo validation was performed using a zebrafish larvae xenograft model, in which MCF7 breast cancer cells were implanted into the larvae at 48 h post-fertilization. The LNPs were labeled for tracking and then administered via intravenous

Targeting the vector of arboviruses Aedes aegypti with nanoemulsions based on essential oils: a review with focus on larvicidal and repellent properties

• Laryssa Ferreira do Nascimento Silva,
• Douglas Dourado,
• Thayse Silva Medeiros,
• Mariana Alice Gonzaga Gabú,
• Maria Cecilia Queiroga dos Santos,
• Daiane Rodrigues dos Santos,
• Mylena Lemos dos Santos,
• Gabriel Bezerra Faierstein,
• Rosângela Maria Rodrigues Barbosa and
• Fabio Rocha Formiga

Beilstein J. Nanotechnol. 2025, 16, 1894–1913, doi:10.3762/bjnano.16.132

• ][41][42]. Aedes aegypti is a species of mosquito of the Culicidae family, order Diptera, native to Africa and distributed throughout various regions of the world. This extensive distribution occurs due to the sum of several factors, such as dispersion favored by high temperatures and high humidity

• -stage larvae (L4) of Aedes aegypti and Culex quinquefasciatus were exposed to concentrations of 10 to 50 mg/L for 24 and 48 hours. LC50 values ranged from 38 to 42 mg/L for both vectors throughout the evaluated periods. Distilled water, polysorbate 20, and commercial larvicides (Temephos and

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

• -networks). Moreover, this approach can be extended to hardware realizations of bio-inspired spiking neural networks [35][36][37][38][39][40][41][42] by solving the challenges of creating controllable synapses to realize the effect of spike-timing-dependent plasticity and unidirectional feedbacks for self

• to examine how the dynamics of voltage spike formation in a bio-inspired neuron, proposed in [42], will change if we substitute geometric inductances for kinetic ones. Further development of the idea presented in this article will also address this aspect. The proposed technique allows for a more

On the road to sustainability – application of metallic nanoparticles obtained by green synthesis in dentistry: a scoping review

• Lorena Pinheiro Vasconcelos Silva,
• Joice Catiane Soares Martins,
• Israel Luís Carvalho Diniz,
• Júlio Abreu Miranda,
• Danilo Rodrigues de Souza,
• Éverton do Nascimento Alencar,
• Moan Jéfter Fernandes Costa and
• Pedro Henrique Sette-de-Souza

Beilstein J. Nanotechnol. 2025, 16, 1851–1862, doi:10.3762/bjnano.16.128

• Zingiberaceae family, especially Zingiber officinale, provide gingerols and shogaols, phenolic compounds known not only for their anti-inflammatory and antioxidant effects, but also for their ability to support nanoparticle synthesis under mild conditions [42]. This review identified that two botanical families

Current status of using adsorbent nanomaterials for removing microplastics from water supply systems: a mini review

• Nguyen Thi Nhan and
• Tran Le Luu

Beilstein J. Nanotechnol. 2025, 16, 1837–1850, doi:10.3762/bjnano.16.127

• [41]. Bottled water, which is normally considered safe, also contains MPs. In China, bottled water had MP levels between 13.6 and 39.3 particles·L−1 [42]. Research conducted in Malaysia shows that an average of 1421.20 ± 915.70 particles were found in one liter of bottled water, with most sizes below

Phytol-loaded soybean oil nanoemulsion as a promising alternative against Leishmania amazonensis

• Victória Louise Pinto Freire,
• Mariana Farias Alves-Silva,
• Johny W. de Freitas Oliveira,
• Matheus de Freitas Fernandes-Pedrosa,
• Alianda Maira Cornélio,
• Marcelo de Souza-Silva,
• Thayse Silva Medeiros and
• Arnóbio Antônio da Silva Junior

Beilstein J. Nanotechnol. 2025, 16, 1826–1836, doi:10.3762/bjnano.16.126

• incorporation of poloxamer 407 increased the viscosity of the external aqueous phase, thereby reducing Brownian motion and droplet collision frequency – mechanisms that are often associated with delayed creaming and phase separation [42][43]. Taken together, these compositional strategies demonstrate the

Further insights into the thermodynamics of linear carbon chains for temperatures ranging from 13 to 300 K

• Alexandre Rocha Paschoal,
• Thiago Alves de Moura,
• Juan S. Rodríguez-Hernández,
• Carlos William de Araujo Paschoal,
• Yoong Ahm Kim,
• Morinobu Endo and
• Paulo T. Araujo

Beilstein J. Nanotechnol. 2025, 16, 1818–1825, doi:10.3762/bjnano.16.125

• carbon atoms (N) constituting the chains [31][34][35][36][37][38][39][40]. The unique properties associated with LCC have attracted a great deal of attention in the scientific community. They are structures that present unique anharmonic behaviors [29][30][41][42], and they are claimed to possess one of

• approximation does not impair the analysis and conclusions of this paper. Finally, for the sake of clarity, Figure 2 shows results for representative LCC, while the full set of LCC is shown in Supporting Information File 1, Figure S2. In total, four LCC with N = 38, 42, 46, and 50 (γP = 0.63, 0.66, 0.74, and

Exploring the potential of polymers: advancements in oral nanocarrier technology

• Rousilândia de Araujo Silva,
• Igor Eduardo Silva Arruda,
• Luise Lopes Chaves,
• Mônica Felts de La Roca Soares and
• Jose Lamartine Soares Sobrinho

Beilstein J. Nanotechnol. 2025, 16, 1751–1793, doi:10.3762/bjnano.16.122

• ][42]. These strategies involve dissolving or dispersing pre-existing polymers in appropriate solvents, followed by NP formation through approaches such as nanoprecipitation, solvent diffusion-emulsification, solvent evaporation, ionic gelation, and dialysis. Each technique is intrinsically linked to