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

• be a new phase of PAZO transformation. Finally, the last three spectra in Figure 2B show how after reaching the maximum heating temperature of 300 °C and subsequent cooling to r.t., the spectrum remains relatively unchanged for a short time. It should be noted that the polymer retains its ability to

From shield to spear: Charge-reversible nanocarriers in overcoming cancer therapy barriers

• Madhuri Yeduvaka,
• Pooja Mittal,
• Ameer Boyalakuntla,
• Usman Bee Shaik,
• Himanshu Sharma,
• Thakur Gurjeet Singh,
• Siva Nageswara Rao Gajula and
• Lakshmi Vineela Nalla

Beilstein J. Nanotechnol. 2026, 17, 159–175, doi:10.3762/bjnano.17.10

• or intracellular compartments like endosomes and lysosomes [20]. Bobrin et al. studied that a PEI-based polymeric nanocarrier demonstrated charge reversal from negative (pH 7.4) to positive (pH 6.8) under tumour pH. This transformation facilitated tumour cell uptake and site-specific unloading of

• reductive tumour microenvironment, leading to structural transformation and payload discharge. By taking advantage of the high GSH concentration and acidic extracellular pH of the tumour, these systems can achieve precise site-specific drug release and improved therapeutic efficacy while minimizing systemic

• become protonated or lose their protective shells, leading to a shift in surface charge from negative to positive. This transformation enhances electrostatic attraction toward negatively charged tumour cell membranes, thereby facilitating more efficient endocytosis and intracellular delivery of

Capabilities of the 3D-MLSI software tool in superconducting neuron design

• Irina E. Tarasova,
• Nikita S. Shuravin,
• Liubov N. Karelina,
• Fedor A. Razorenov,
• Evgeny N. Zhardetsky,
• Aleksandr S. Ionin,
• Mikhail M. Khapaev and
• Vitaly V. Bol’ginov

Beilstein J. Nanotechnol. 2026, 17, 122–138, doi:10.3762/bjnano.17.8

• superconducting sigma neuron since its theoretical models are more developed and allow for approximation of the TF of the experimental device (see Section “Discussion”). The purpose of the sigma neuron is a sigmoidal transformation of the input signal, and the desired shape of the TF is achieved at certain values

Microscopic study of the intermediate mixed state in intertype superconductors

• Vyacheslav D. Neverov,
• Alexander V. Kalashnikov,
• Andrey V. Krasavin and
• Alexei Vagov

Beilstein J. Nanotechnol. 2026, 17, 57–62, doi:10.3762/bjnano.17.5

• foundation for the IT regime in single-band superconductors and clarifies its persistence and transformation with temperature. These insights open a path for future investigations of materials tuned near the Bogomolnyi point, where unconventional vortex structures and collective effects may play a decisive

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

• indicates that the transformation of epidermal microstructures to setae and the expression of macroscopically defined incipient toepads occurred together. However, C. cf. consobrinus retains the ancestral microstructure of Cyrtodactylus (spines) but bears weakly developed lamella-like subdigital scales

• the effect that this would have on the proximodistal extent of the digits. This putatively explains the occurrence of lateromedial subdigital scale expansion, leading to the expression of macroscopically defined incipient toepads. Increasing subdigital scale area without the transformation of their

Competitive helical bands and highly efficient diode effect in F/S/TI/S/F hybrid structures

• Tairzhan Karabassov,
• Irina V. Bobkova,
• Pavel M. Marychev,
• Vasiliy S. Stolyarov,
• Vyacheslav M. Silkin and
• Andrey S. Vasenko

Beilstein J. Nanotechnol. 2026, 17, 15–23, doi:10.3762/bjnano.17.2

• in the dirty limit. h = (hx, 0, 0) is the exchange field due to the adjacent ferromagnetic material. The matrices τ and σ are 2 × 2 Pauli matrices in the particle–hole and spin spaces, respectively. The superconducting pair potential matrix is defined as , where the transformation matrix is . The

• through the hybrid structure as a function of q, from which the supercurrent and critical current of the system are determined. The supercurrent in the diffusive limit can be found from the expression Performing the unitary transformation U, the current density transforms as follows: The total

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

• the synthesis and characterization of polyhedral Zn0.4Fe2.6O4 nanoparticles and their subsequent transformation into Zn0.4Fe2.6O4@MnFe2O4 core–shell nanoparticles with tunable sizes. Previous studies have explored core–shell systems with Co-based shells, but our approach employs MnFe2O4 as the shell

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

• the decyanation of CNCbl and the dealkylation of alkylcobalamins (alkylCbls). These biochemical transformations are contingent upon the enzymatic action of glutathione S-transferase [47][56][57]. The subsequent transformation of cob(II)alamin into AdoCbl and MeCbl is facilitated by a complex of

• cofactor for MCM, facilitating the transformation of methylmalonyl-CoA into succinyl-CoA, with methylmalonyl-CoA being a byproduct of propionate metabolism. In the majority of mammals, propionate is generated through the catabolism of specific amino acids (e.g., Ile, Met, Thr, Thy, and Val), cholesterol

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

• -imbalanced regimes in which . The effective Hamiltonian is diagonalized by applying the Bogoliubov–Valatin transformation [4], where uν(i) and vν(i) are, respectively, the particle-like and hole-like quasiparticle (bogolon) wavefunctions, and γνσ and are the annihilation and creation operators for bogolon

Missing links in nanomaterials research impacting productivity and perceptions

• Santosh K. Tiwari and
• Nannan Wang

Beilstein J. Nanotechnol. 2025, 16, 2168–2176, doi:10.3762/bjnano.16.149

• produce instantaneous and dramatic impacts that a nonscientific audience can easily perceive, unlike developments in AI, virtual reality, or other highly visible innovations. This lack of immediate, observable transformation has contributed to a strong perception, especially among political leaders

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

• of the experimental space. The prepared formulations corresponding to the experimental design runs are shown in Figure 4, and a summary of the BBD is presented in Table 5. To refine the model and improve predictive accuracy, the response data were subjected to Box–Cox transformation, an essential

• step when non-normal distribution is detected [25]. Following transformation, analysis of variance (ANOVA) was conducted to evaluate the statistical significance of the overall model and the individual formulation factors. To enhance model parsimony, backward regression elimination was applied to

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

• , shape, crystal structure, and temperature [12]. As a result, thermodynamically controlled growth typically results in near-spherical NPs. The lowest surface energy of nanospheres also induces the transformation of other shapes into spherical ones. The effect of surface energy is most pronounced in small

• modification. The presence of the active ionic species has been shown to guide the formation of Ni(OH)2 nanosheets in [30]. After NP formation, the shape transformation can occur during the stages of growth, self-organization, and ageing of the NPs. In this case, laser ablation, which is performed for

• , small near-spherical Pb NPs are produced, which are quickly oxidized and assembled into planar structures due to the existence of a preferential [002] growth direction in the PbO structure. The transformation of the morphology occurs after the laser is switched off and the colloid undergoes ageing at

Mechanical property measurements enabled by short-term Fourier-transform of atomic force microscopy thermal deflection analysis

• Thomas Mathias,
• Roland Bennewitz and
• Philip Egberts

Beilstein J. Nanotechnol. 2025, 16, 1952–1962, doi:10.3762/bjnano.16.136

• transform, or transformation of the time-based AFM deflection into the frequency domain is conducted. In the majority of studies examining the thermal oscillations of AFM cantilevers, the cantilever’s displacement is measured for a specific length of time and then converted to frequency space over the

Electrical, photocatalytic, and sensory properties of graphene oxide and polyimide implanted with low- and medium-energy silver ions

• Josef Novák,
• Eva Štěpanovská,
• Petr Malinský,
• Vlastimil Mazánek,
• Jan Luxa,
• Ulrich Kentsch and
• Zdeněk Sofer

Beilstein J. Nanotechnol. 2025, 16, 1794–1811, doi:10.3762/bjnano.16.123

• , and C–O) and the simultaneous transformation of the amorphous polymer phase into a graphitized structure with higher electrical parameters [9]. This results in carbon regions rich in conjugated π-electron systems, which allow for efficient charge delocalization and the formation of conducting pathways

Advances of aptamers in esophageal cancer diagnosis, treatment and drug delivery

• Yang Fei,
• Hui Xu,
• Chunwei Zhang,
• Jingjing Wang and
• Yong Jin

Beilstein J. Nanotechnol. 2025, 16, 1734–1750, doi:10.3762/bjnano.16.121

• conjugates and aptamer-functionalized drug nanocarriers for targeted drug delivery in esophageal cancer are reviewed in this paper. In addition, we expect investigators to pay special attention to improving aptamer permeability and stability to accelerate aptamer clinical transformation. In conclusion

• cancer [85], prostate cancer [86], and ovarian cancer [87]. Scientists have discovered that p37 protein promotes invasiveness and induces malignant transformation of cells [88], which may be a key target for Mycoplasma pathogenicity. However, given that Mycoplasma-mediated cellular malignant

• transformation is characterized by long-latency, multistage chronic infections [89], it is extremely challenging to collect sufficient epidemiological data to establish a direct causal relationship between Mycoplasma infection and tumors. Immunohistochemical results of 53 cancer tissue samples showed that

Beyond the bilayer: multilayered hygroscopic actuation in pine cone scales

• Kim Ulrich,
• Max David Mylo,
• Tom Masselter,
• Fabian Scheckenbach,
• Sophia Fischerbauer,
• Martin Nopens,
• Silja Flenner,
• Imke Greving,
• Linnea Hesse and
• Thomas Speck

Beilstein J. Nanotechnol. 2025, 16, 1695–1710, doi:10.3762/bjnano.16.119

• information. DVC was performed using the image registration software Elastix with its implemented B-spline transformation (ver. 5.1.0) [39]. The images were aligned in a two-step process, first with an affine transformation and then with a B-spline transformation. For both steps, a pyramidal approach with

• five resolution levels using a Gaussian filter was applied. The number of iterations per resolution level was set to 1000 for the affine transformation and 2000 for the B-spline transformation. Advanced normalized correlation was chosen as the correlation metric. The detailed parameter files

Ambient pressure XPS at MAX IV

• Mattia Scardamaglia,
• Ulrike Küst,
• Alexander Klyushin,
• Rosemary Jones,
• Jan Knudsen,
• Robert Temperton,
• Andrey Shavorskiy and
• Esko Kokkonen

Beilstein J. Nanotechnol. 2025, 16, 1677–1694, doi:10.3762/bjnano.16.118

• active sites on catalytic materials. These surface sites, often structurally undercoordinated and electronically distinct from the bulk material, drive the transformation of reactants into products. While catalysts regenerate at the end of each cycle, their surfaces can be highly sensitive and unstable

Energy spectrum and quantum phase transition of the coupled single spin and an infinitely coordinated Ising chain

• Seidali Seidov,
• Natalia Pugach and
• Anatolie Sidorenko

Beilstein J. Nanotechnol. 2025, 16, 1668–1676, doi:10.3762/bjnano.16.117

• thermodynamic limit of an infinite chain, we map the chain Hamiltonian to the Hamiltonian of the Lipkin–Meshkov–Glik model, and the system as a whole is described by a generalized Rabi Hamiltonian. Next, the effective Hamiltonian is obtained using the Foulton–Gouterman transformation. In the thermodynamic limit

• ]. The Hamiltonian of the whole system then becomes akin to the Hamiltonian of the generalized Rabi model, but with the bosonic field replaced by the collective spin of the LMG model. Next, it is diagonalized in the spin space using the Fulton–Gouterman transformation and we obtain an effective

• mode, but to a more complicated environment [16][17][18]. Diagonalization in the Spin Space The Hamiltonian in the spin space can be diagonalized using the formula for the determinant of a 2 × 2 block matrix. This is also known as the Fulton–Gouterman transformation [19]. This leads to two effective

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

• relative intensity of the hydroxyl peak decreases, and the peaks shift slightly (O–Ti at 529.7 eV and –OH at 531 eV), indicating a reduction in surface –OH groups due to dehydration and phase transformation from hydrogen titanate to anatase TiO2. Based on the area underneath the corresponding O 1s XPS peak

Influence of laser beam profile on morphology and optical properties of silicon nanoparticles formed by laser ablation in liquid

• Natalie Tarasenka,
• Vladislav Kornev,
• Alena Nevar and
• Nikolai Tarasenko

Beilstein J. Nanotechnol. 2025, 16, 1533–1544, doi:10.3762/bjnano.16.108

• , phase composition, and lattice parameters of the formed Si nanostructures were determined from HRTEM images by fast Fourier transformation (FFT). The morphology of the produced nanoparticles was also evaluated using scanning electron microscopy (SEM) with a SUPRA 55WDS microscope (Carl Zeiss, Germany

Dendrimer-modified carbon nanotubes for the removal and recovery of heavy metal ions from water

• Thao Quynh Ngan Tran,
• Huu Trung Nguyen,
• Subodh Kumar and
• Xuan Thang Cao

Beilstein J. Nanotechnol. 2025, 16, 1522–1532, doi:10.3762/bjnano.16.107

•  1a. The Raman spectrum exhibits two characteristic peaks, namely, the D peak at 1337 cm−1 and the G peak at 1569 cm−1. The ratio of the intensities of D and G peaks (ID/IG) has increased from 0.89 to 1.11 after MA functionalization, indicating a successful transformation of carbon atoms from sp2 to

Laser processing in liquids: insights into nanocolloid generation and thin film integration for energy, photonic, and sensing applications

• Akshana Parameswaran Sreekala,
• Pooja Raveendran Nair,
• Jithin Kundalam Kadavath,
• Bindu Krishnan,
• David Avellaneda Avellaneda,
• M. R. Anantharaman and
• Sadasivan Shaji

Beilstein J. Nanotechnol. 2025, 16, 1428–1498, doi:10.3762/bjnano.16.104

Photochemical synthesis of silver nanoprisms via green LED irradiation and evaluation of SERS activity

• Tuan Anh Mai-Ngoc,
• Nhi Kieu Vo,
• Cong Danh Nguyen,
• Thi Kim Xuan Nguyen and
• Thanh Sinh Do

Beilstein J. Nanotechnol. 2025, 16, 1417–1427, doi:10.3762/bjnano.16.103

• ± 20 nm) for various periods of time up to 72 h. The growth mechanism was investigated through ultraviolet–visible spectroscopy, field-emission scanning electron microscopy, X-ray diffraction, and transmission electron microscopy analyses, confirming the gradual transformation of spherical seeds into

• ) irradiating the seeds with green LEDs to form AgNPrs with the aid of ʟ-arginine (L-A) [9]. Due to the different SPR properties between AgNPs and AgNPrs, the morphological transformation of silver nanostructures in sample can be observed through UV–vis spectra in Figure 2. After 6 h of LED irradiation, the UV

• stable at 333 and 440 nm, respectively, indicating that the transformation of silver seeds into nanoplates had reached equilibrium. The IPD peak continued to blueshift slightly (to 604 nm and 600 nm, respectively), but no significant changes were observed in the overall UV–vis spectral profiles. Based on

Transfer function of an asymmetric superconducting Gauss neuron

• Fedor A. Razorenov,
• Aleksander S. Ionin,
• Nikita S. Shuravin,
• Liubov N. Karelina,
• Mikhail S. Sidel’nikov,
• Sergey V. Egorov and
• Vitaly V. Bol’ginov

Beilstein J. Nanotechnol. 2025, 16, 1160–1170, doi:10.3762/bjnano.16.85

• due to, for example, defects in the thin-film structure. The third type of asymmetry may be associated with unequal signal supply into the input arms of the neuron. Below, we analyze the transformation of the TF in each of these cases and compare it with experimental results [18]. Symmetric Gauss

Crystalline and amorphous structure selectivity of ignoble high-entropy alloy nanoparticles during laser ablation in organic liquids is set by pulse duration

• Robert Stuckert,
• Felix Pohl,
• Oleg Prymak,
• Ulrich Schürmann,
• Christoph Rehbock,
• Lorenz Kienle and
• Stephan Barcikowski

Beilstein J. Nanotechnol. 2025, 16, 1141–1159, doi:10.3762/bjnano.16.84

• followed by spontaneous transformation into the thermodynamically favored crystalline state. In addition, we observe a decrease of the full width at half-maximum (FWHM, derived by rotational average from the SAED analysis) of the investigated (111)-ring in the in situ heating experiment (Figure 4C), which