Interface-engineered Caco-2 cell culture on a collagen-coated liquid–liquid interface in a microfluidic device

• Satoru Kuriu and
• Soo Hyeon Kim

Beilstein J. Nanotechnol. 2026, 17, 760–768, doi:10.3762/bjnano.17.53

• evaluate whether gravitational forces or interfacial tension dominate when two fluids of different densities are in contact. Here, ρ denotes the density difference between FC-43 and the collagen solution, g is the gravitational acceleration, L is the channel width, and σ is the interfacial tension

• adhere on the liquid–liquid interface to form a monolayer; instead, they aggregated and were observed floating on the liquid–liquid interface. Those results indicate that bringing the collagen solution into contact with FC-43 results in the formation of a collagen layer on the liquid–liquid interface

Tailoring Ag–Pt nanoalloys through solid-state dewetting: structural and optical insights

• Marcin Łapiński,
• Piotr Okoczuk,
• Blaž Grobiša,
• Ewa Pawlikowska,
• Amelia Rozwadowska,
• Wojciech Sadowski and
• Barbara Kościelska

Beilstein J. Nanotechnol. 2026, 17, 748–759, doi:10.3762/bjnano.17.52

• tension) and the energy gained by reducing the total contact area between the film and the substrate (interfacial tension). A comprehensive analysis of the transformation of a thin layer into isolated islands was provided in a series of publications by Thompson and collaborators [13][20][21][22]. They

• Ntegra AFM. To obtain high-resolution, ultra-sharp probes with a tip radius <5 nm were used. Measurements were conducted in the semi-contact mode. The morphology of the manufactured nanostructures was examined using microscopic techniques. A FEI Quanta FEG 250 scanning electron microscope operating at 10

Environmental applications of silver nanoparticles: state-of-the-art review and emerging trends

• Soni Prajapati,
• Akash Kumar and
• Ranjana Singh

Beilstein J. Nanotechnol. 2026, 17, 697–736, doi:10.3762/bjnano.17.49

• contact [96]. Another study used Murcott mandarin-stabilised AgNPs to remove Pb2+ ions, achieving an adsorption of 42.7 mg/g in 60 min at pH 5.5 [97]. Similar to metal ions, dye removal was achieved using Shorea robusta leaf biochar-stabilised AgNPs, yielding more than 90% removal of RhB and CR [98]. The

Decontamination from water pollutants and pathogens by electrospun nanofibers doped with heavy-atom-free borafluorene-BODIPY photosensitizers

• Angelika Zaszczyńska,
• Paulina H. Marek-Urban,
• Karolina Wrochna,
• Agnieszka E. Kuklewska,
• Kacper Kręgielewski,
• Marta Grodzik,
• Dawid R. Natkowski,
• Jolanta Mierzejewska,
• Ewa Iwanek,
• Agata Blacha-Grzechnik,
• Paweł Sajkiewicz and
• Krzysztof Durka

Beilstein J. Nanotechnol. 2026, 17, 668–682, doi:10.3762/bjnano.17.46

• ® software and embedded algorithms. The components of the high-resolution spectra were represented with Gaussian (70%) and Lorentzian (30%) lines, while the background was represented with Shirley’s function. Water contact angle measurements and surface free energy determination The wettability of all

• samples was assessed using a Data Physics OCA 15EC contact angle goniometer (Filderstadt, Germany). A 2 µL droplet of liquid was placed on the scaffold surface, and the contact angle (CA) was measured after 3 s at a temperature of 21 °C. The Owens–Wendt method was used to calculate the components of the

• reliability of the contact angle measurements (parameters related to formamide were not directly included in Equation 3 and Equation 4). The total surface free energy was calculated as the sum of the dispersive and polar components, , where γs denotes the total surface free energy, and and represent its

Recent progress in enhancing built-in electric fields of perovskite solar cells via junction engineering

• Tong Xiao and
• Ke Xu

Beilstein J. Nanotechnol. 2026, 17, 602–621, doi:10.3762/bjnano.17.42

• energy alignment and contact, and enhances carrier transport efficiency (Voc = 1.18 V, FF = 85%) through reduced trap-assisted recombination and improved directional transport. DMSO diffusion further promotes deep penetration of 2D spacer cations and preferential n = 2 phase formation, achieving

• bidirectional interface optimization strategy: Seed layers of BAMAPbI (n = 3, 4, 5) were spin-coated onto the hole transport layer (MeO-2PACz) to form a bottom 2D induction layer, promoting the epitaxial crystallization of the overlying 3D perovskite and improving interfacial contact, thereby enhancing hole

Probing tribological evolution in atomically thin MoS₂ at different scales

• Xingzhong Zeng and
• Miao Zhang

Beilstein J. Nanotechnol. 2026, 17, 586–597, doi:10.3762/bjnano.17.40

• load-dependent transition, remaining nearly constant under low loads before increasing with higher loads, and ultimately decreasing at ultrahigh loads. This transition arises from two competing mechanisms: under low loads, the evolution of interfacial contact quality dominates the strengthening effect

• -nanoscale stick–slip motion and reduces slip distance. Furthermore, the load-dependent sub-nanoscale stick–slip motion is closely correlated with changes in tip–MoS2 contact area and contact geometry, both modulated by load and MoS2 layer thickness. These findings advance 2D material tribology from the

• -sensitive characteristics, such as contact area dependence [3], superlubricity [4][5][6], negative friction coefficients [7], and friction anisotropy [8]. A hallmark of nanoscale friction is atomic-scale stick–slip motion, first observed by sliding a tungsten tip over graphite, where the tip “sticks” to an

Impacts of annealing on structural and photophysical properties of zinc phthalocyanine adsorbed on graphene

• Gautier Creutzer,
• Quentin Fernez,
• Nataliya Kalashnyk,
• Zohreh Safarzadeh,
• Lydia Sosa Vargas,
• Céline Fiorini-Debuisschert,
• Nicolas Fabre and
• Fabrice Charra

Beilstein J. Nanotechnol. 2026, 17, 576–585, doi:10.3762/bjnano.17.39

• is thus important to develop a deep understanding about how to control the organization of π-conjugated molecules that are in contact with graphene and how this organization impacts their electronic excitations. In this context, porphyrins, phthalocyanines (Pcs) and their metalated complexes (MPcs

• particular interest since they permit to focus on the specific properties of the molecules that are in direct contact with graphene. These studies benefit from in-depth analysis offered by scanning probe techniques combined with measurements of optical absorption [24][25], photoluminescence [26], or graphene

Advances in nanotechnology applied to natural products

• Douglas Dourado,
• Fábio Rocha Formiga,
• Éverton do Nascimento Alencar and
• Franceline Reynaud

Beilstein J. Nanotechnol. 2026, 17, 555–558, doi:10.3762/bjnano.17.36

• increases interfacial area and contact with biological surfaces, improves the apparent solubilization of predominantly lipophilic compounds, and can reduce undesirable organoleptic characteristics [5][6]. In inflammatory settings, several preclinical studies have reported lower levels of pro-inflammatory

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

Nanocarrier-integrated multilayer films produced by 3D printing for improved skin adhesion and curcumin photostability

• Thayse Viana de Oliveira,
• Ana Paula Farias Leão,
• Júlia Leão,
• Cesar Liberato Petzhold and
• Ruy Carlos Ruver Beck

Beilstein J. Nanotechnol. 2026, 17, 440–453, doi:10.3762/bjnano.17.30

• with absorbent paper. Skin samples were fixed to the equipment probe with instantaneous adhesive, while films were fixed to the equipment’s platform with double-sided tape. The equipment promoted contact between the skin sample and the film, with a force of 290 mN for 3 min. The probe holding the skin

• . The three-layer 3D-printed films were rationally designed by combining hydrogels with complementary mechanical and biological functions to optimise skin adhesion, printability, and curcumin stability. The bottom layer, composed of chitosan, was selected to ensure direct contact with the skin

• nanoparticle aggregation. In addition, the hydrogel network acts as a steric barrier that limits nanoparticle mobility and reduces particle–particle contact during printing and drying. Previous studies have demonstrated the compatibility of SSE 3D printing with nanocarrier systems without significant loss of

Eco-efficient materials for agricultural crops based on a mineral rich in MOR- and HEU-type zeolites

• Esperanza Yamile de la Nuez-Pantoja,
• Inocente Rodríguez-Iznaga,
• Gerardo Rodríguez-Fuentes,
• Vitalii Petranovskii,
• Ariel Martínez García,
• José Juan Calvino Gámez and
• Daniel Goma Jiménez

Beilstein J. Nanotechnol. 2026, 17, 381–395, doi:10.3762/bjnano.17.26

• %) of ammonium hydrogenphosphate (DAP with 18% N and 46% P) for 24 h, and then with aqueous solutions of urea with different molar concentrations (0.5, 1.0, 2.0, and 5.0 mol/L) and contact time (4, 8, 12, and 24 h) using a solid/liquid ratio of 1 g/10 mL and agitation on a shaker with horizontal

• and urea solutions at different concentrations (1, 2, and 5 M) for contact times of 12 and 24 h: (a, b) with 2% DAP, (c, d) with 3.5% DAP, and (e, f) with 7% DAP. Enlargement of the FTIR spectrum of the CLIMf7-U5M material showing differences resulting from successive modifications. X-ray diffraction

Polycatecholamine nanocoatings on stainless steel: the effect on attachment of human fibroblasts and platelets

• Paulina Trzaskowska,
• Ewa Rybak,
• Maciej Trzaskowski,
• Kamil Kopeć,
• Jakub Krzemiński,
• Rafał Podgórski,
• Hatice Genc,
• Mehtap Civelek and
• Iwona Cicha

Beilstein J. Nanotechnol. 2026, 17, 365–380, doi:10.3762/bjnano.17.25

• presented in the Introduction section, PDA and PTYR coatings consist of catechol and quinone groups, as well as primary and secondary amine groups (Figure 2c). Contact angle (CA) values presented in Table 1 indicate that the SS 316L surface without any modifications is hydrophobic (99.40°), whereas all PDA

• functionalities, namely, as a cell adhesion-promoting surface for better implant integration with surrounding tissues and as a platelet adhesion-repelling surface to reduce the risk of thrombosis upon contact with blood. Compared with extensively investigated PDA, little has been known until now about PTYR’s

• potential to serve as a biomedical coating. In a previous study from our groups, coatings derived from ʟ-tyrosine, ʟ-phenylalanine, and 2-phenylethylamine were shown to substantially reduce water contact angles by 50–80%, indicating a pronounced increase in surface hydrophilicity [12]. Thus, we now focused

Calculation of the dynamic stiffness of a cantilever under torsional oscillation

• Keita Nishida,
• Yuuki Yasui and
• Yoshiaki Sugimoto

Beilstein J. Nanotechnol. 2026, 17, 303–308, doi:10.3762/bjnano.17.21

• : atomic force microscopy; dynamic stiffness; energy dissipation; friction; torsional oscillation mode; Introduction Friction serves as a fundamental mechanism of energy dissipation [1]. While friction typically arises from direct mechanical contact between surfaces, energy dissipation can also occur even

• in the absence of physical contact, and this dissipation is called non-contact friction [2]. Its origins have been investigated down to the nanometer scale [3][4][5]. In particular, the origin of non-contact friction is attributed to electromagnetic interactions between the two bodies, although its

• detailed mechanisms remain not fully understood [5]. Non-contact atomic force microscopy (nc-AFM) is widely employed to investigate non-contact friction through its dissipation channel. Common techniques include pendulum AFM, bimodal AFM, and quartz tuning fork AFM [6][7][8]. Pendulum AFM uses cantilevers

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

• devices [23][24][25]. To modify quasiparticles relaxation mechanism, one of the most promising strategies involves engineering hybrid heterostructures in which the superconducting layer (S) is brought into contact with a normal metal (N) or a ferromagnetic layer (F). Several studies have shown that, in S

• work, we systematically investigate vortex dynamics and flux-flow instability phenomena in micrometer-wide bilayers in which NbRe is brought into contact with either thin N or F materials. In particular, we measure transport properties in the presence of a magnetic field in NbRe/Au and NbRe/Py

• using an ultrasonic wire bonder, ensuring a highly reproducible and comparable contact quality for both NbRe/Au and NbRe/Py microbridges. The electrical transport measurements were performed using a cryogen-free measurement system from Cryogenic Ltd. The samples were mounted in the measurement system

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

• preparation steps, LAO enables direct chemical modification, with precise control of the tip–sample separation during the writing process. This is typically achieved in contact mode, where the tip apex is in direct contact with the substrate, ensuring capillary condensation and the formation of a stable water

• contact-mode conditions with applied forces around 1500 nN, which may lead to tip coating wear if the ohmic contact is not facilitated by the presence of a water meniscus. Despite this, the authors demonstrate consistent and reproducible patterning over hundreds of micrometers, achieved at writing speeds

• nanopatterning of thick multilayer van der Waals (vdW) heterostructures [64]. This approach, which relies on applying a low-frequency (10 kHz) AC voltage between the AFM tip in contact mode and the grounded substrate, achieves high-resolution etching (down to ≈100 nm) without the need for a humid environment

Durable antimicrobial activity of fabrics functionalized with zeolite ion-exchanged nanomaterials against Staphylococcus aureus and Escherichia coli

• Perla Sánchez-López,
• Kendra Ramirez Acosta,
• Sergio Fuentes Moyado,
• Ruben Dario Cadena-Nava and
• Elena Smolentseva

Beilstein J. Nanotechnol. 2026, 17, 262–274, doi:10.3762/bjnano.17.18

• inactivate a wide range of microorganisms. Today, both silver and copper are widely used in various medical and healthcare applications due to their effective antimicrobial activity. For example, copper was found to be 99.9% efficient in inactivating microorganisms within the first two hours of contact [13

Micro- and nanoscale effects in biological and bioinspired materials and surfaces

• Thies H. Büscher,
• Rhainer Guillermo Ferreira,
• Manuela Rebora and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2026, 17, 214–217, doi:10.3762/bjnano.17.14

• adhesion. They combined molecular dynamics for the simulation of the adhesive contact between the gecko spatula and the substrate with finite element modeling of the mechanical behavior of the adhesive seta to understand key aspects of gecko seta adhesion across scales. Besides these studies, focusing on

Influence of surface characteristics on the in vitro stability and cell uptake of nanoliposomes for brain delivery

• Dushko Shalabalija,
• Ljubica Mihailova,
• Nikola Geskovski,
• Andreas Zimmer,
• Otmar Geiss,
• Sabrina Gioria,
• Diletta Scaccabarozzi and
• Marija Glavas Dodov

Beilstein J. Nanotechnol. 2026, 17, 139–158, doi:10.3762/bjnano.17.9

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

• more homogeneous AMF surface after prolonged UV exposure, which also contributed to maintaining a nearly constant, relatively high contact angle. Rather than organic polymers, inorganic polymers, also known as geopolymers, are often used with this class of artwork. This is due to the fact that

• coating density and physical barrier performance (ZIF-8 helps prevent Ti3C2Tx aggregation and chemically cross-links with WPU, enhancing mechanical integrity). The final cross-linked coating had a water contact angle of about 154°, indicating high water repellency and self-cleaning capabilities. More

• .) and oak (Quercus robur) substrates. The addition of BC–MnO2 particles increased hydrophobicity across all formulations, with contact angles ranging from 97° to 121°, and further improvements were observed after aging due to increased surface roughness. It also provided superior color stability and

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

• adhesive contact by increasing real contact with the substratum through their arrangement in arrays and their heavily branched stalks and spatulate tips, thereby generating extensive van der Waals intermolecular forces [11][17][18][19][20]. Spines and prongs, which increase traction (as has been discussed

• requires strong adhesive capabilities or alternatively strong clinging forces via claws, and the hard, rocky surface increases the risk of injuries if individuals lose contact with the substrate and fall. Conclusion Although our dataset (27 species and 19 phylogenetic groups) comprises only a small subset

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

• [5] and physicochemical properties [6]. Among these properties, particle adhesion (which is determined by the interaction between the NP and the substrate) and the interface formed between NPs and substrate [7][8] play a decisive role. Particularly when the contact area between NPs and the substrate

• [15][16][17]. However, achieving consistently accurate manipulation of NPs has inherent limitations due to limited knowledge of the exact geometry of the AFM tip as well as the complex interactions involving surface contact area and interfacial friction between the AFM tip, NPs, and the substrate [18

• utilized as a tool for the manipulation of the NPs in order to determine the adhesion forces. The NPs were pushed in normal direction to the AFM cantilever’s long axis by scanning the surface with the AFM tip in contact mode. The corresponding lateral forces necessary to move NPs were determined. The

Internal 3D temperature mapping in biological systems using ratiometric light-sheet imaging and lipid-coated upconversion nanothermometers

• Dannareli Barron-Ortiz,
• Enric Pérez-Parets,
• Rubén D. Cadena-Nava,
• Emilio J. Gualda,
• Jacob Licea-Rodríguez,
• Juan Hernández-Cordero,
• Pablo Loza-Álvarez and
• Israel Rocha-Mendoza

Beilstein J. Nanotechnol. 2025, 16, 2306–2316, doi:10.3762/bjnano.16.159

• devices with several disadvantages, including limited sensitivity and low accuracy, and are generally restricted to contact surface measurements [2]. Beyond fundamental processes, temperature also serves as a key biomarker for pathological conditions such as cancer. Localized hyperthermia often arises

• with a transmitted light source and thin tweezers. After the transfer, 50 µL of the UCNPs@lipids solution was carefully dropped onto the plate and spread to cover most of the plate. Before imaging, the nematodes were left in contact with the UCNPs@lipids solutions for approximately 17 h. Samples used

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

• bulk fibre morphology of DPP-BC@Gel. (B) Micrograph of the fibre morphology of DPP-BC@Gel where the gel sample is in contact with the glass coverslip. Imaging details: laser 561 nm, emission range 565–700 nm, laser power 30%. (C) Three-dimensional view of a z-stack of x–y slice images collected of DPP

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

• Gennes equations; normal metal–superconductor junction; order parameter; proximity effect; superconductivity; Introduction When a superconductor (SC) is brought into contact with a normal metal (NM) or a ferromagnet (FM), Cooper pairs penetrate the adjacent material, imparting superconducting properties

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