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

• support matrix for these composites, stabilizing the photocatalyst and enhancing its interaction with MPs [78]. Another novel strategy is the use of multifunctional nanomaterials, such as ZnO–CuO composites, which have both antibacterial and strong photocatalytic activity. These substances provide long

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

• advanced and the retarded Green’s function, respectively. ΓL and ΓR are the broadening functions of the electrodes. The Green’s function of the electrode–conductor–electrode system is given by Equation 4. HC is the Hamiltonian matrix of the conductor, with HL and HR representing the Hamiltonian matrices of

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

• , and linoleic acids) are physiologically relevant to skin health. Oleic, palmitic, and stearic acids are the major components of the epidermal and dermal lipid matrix [15]. The balance among these fatty acids is associated with skin homeostasis, influencing the activity of enzymes that regulate

• the oil matrix. A second thermal event began (Tonset = 384 °C) corresponding to the thermal degradation of the oil (Figure 1). This thermal behavior is consistent with that reported for P. edulis seed oil, which exhibited a similar decomposition profile [20]. Quality by design approach Defining the

• ]. To further assess potential formulation and process risks, an Ishikawa (fishbone) diagram was constructed to visualize and categorize possible sources of variability affecting the identified CQAs (Figure 2) [22]. Following this qualitative analysis, a risk estimation matrix (REM) was employed to

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

• these nodes becomes Here, KFE is a diagonal matrix representing spring contributions assembled over ΩBD. The remaining nodes of the finite element mesh adjusted their positions in response to the displacement of the top and the forces transmitted from the molecular dynamics domain at the bottom by

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

• established technique, an obvious advantage is that countless compounds contain NMR-active nuclei, and the interested reader is referred to one of the excellent review articles by Kärger and coworkers [21][22][23]. However, the solvents and the matrix of the porous host can also be NMR-active, which makes

• SerNH10SIL where values higher than αs = 2 are reached. Investigations on an independent chiral matrix Chiralpak IG-3 is a commercially available type of chiral stationary phase used in HPLC for the separation of enantiomers [66]. Chiralpak IG-3 consists of a chiral selector that is based on cellulose

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

• applications and naturally occurring in vertebrates [26][27]. It is a key element of the extracellular matrix, providing a gelatinous structure where collagen and elastin fibers are embedded. As an endogenous molecule, it demonstrates ideal biocompatibility and full absorption by human tissues. Its natural

• of the encapsulated drug also impacts its release profile. Uncontrolled crystallization of the drug can affect its distribution, leading to the formation of crystals on the fiber surface. In contrast, an amorphous form tends to be more uniformly incorporated into the fiber matrix. Such nonuniform

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

• and that of the cement suggests that the inclusions of the heterogeneous granules would inflate through a still unexplained process to form hollow spheroids dispersed in the cement matrix, leading to the formation of a complex composite material. Keywords: adhesive protein; Annelida; biological

• TEM (Figure 2F,G). The cement matrix is homogeneous and of medium electron density. It encloses hollow spheroids of various sizes, as well as small electron-dense granules and small lacunae (Figure 2F). The exception is the periphery of the cement spot, which is made up entirely of the matrix, giving

• . The sizes of the electron-dense granules and lacunae are 50–700 nm and 50–1400 nm in diameter, respectively. They are homogeneously distributed in the matrix between the hollow spheroids (Figure 2F,G). Morphology and ultrastructure of the adhesive glands The body of S. alveolata measures approximately

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

• (SEM EDX) together with machine learning-based hyperspectral data processing, which uses non-negative matrix factorization (NMF) to separate the EDX signals of structures from the ones of the substrate. As already shown, this type of analysis greatly enhances the applicability of SEM EDX for the

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

• load (for example, for ground and balloon observations), such detectors are combined into matrices; the power of incoming radiation is distributed between the matrix elements and, accordingly, the dynamic range of the detecting device can be significantly increased. Deployment at “Big Telescope Alt

• (IMPATT diode) of the detecting matrix in the 75–110 GHz range were carried out. Photos from the expedition are presented in Figure 8. The ratio of resistances on the presented current–voltage characteristic is about 30, which, according to Equation 3, corresponds to an electron temperature of 0.5 K with

• characteristics of the SINIS detector matrix installed inside the cryostat with a closed optical window and under irradiation by the source; The lower part demonstrates a PT2 temperature of 2.6 K and a 3He pot temperature of 263 mK. Transmission spectrum of the cold mesh filter. (a) I–V curves and dynamic

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

• achieve a diode effect, enabling non-reciprocal soliton propagation. Building upon these foundational concepts, we then propose two specific architectural solutions: a programmable switch and a versatile routing matrix, which we term the “WayMatrix”. We suggest that these architectures provide a framework

• , which can be represented in matrix form: The resulting system of N ordinary differential equations is expressed in the matrix form shown in Equation 7. In this equation, is the vector of nodal phases, N is the total number of non-ground nodes, and is the N × N mass matrix (also known as the

• capacitance matrix), which is defined by the capacitive coupling coefficients from Equation 6. A key property of is its sparsity, which arises directly from the local connectivity of the circuit topology; each node is connected to a small subset of other nodes. To increase computational efficiency, we

Self-assembly and adhesive properties of Pollicipes pollicipes barnacle cement protein cp19k: influence of pH and ionic strength

• Shrutika Sawant,
• Anne Marie Power and
• J. Gerard Wall

Beilstein J. Nanotechnol. 2025, 16, 1863–1872, doi:10.3762/bjnano.16.129

• , apparently requiring days to several weeks, this likely prevents premature cement curing within the gland – this is the post-secretion process of enzymatic and oxidative crosslinking of adhesive proteins to transform them into a hardened, insoluble matrix that enables permanent underwater adhesion of 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

• different electronic stopping behavior, which results in a distinct ionization of the surrounding matrix. Furthermore, the chemical reactivity of Ag towards functional groups in polymers differs from that of Cu or C, potentially leading to unique structural modifications and functional responses. Among

• surface electrical resistivity [8]. During implantation, the kinetic energy of the implanted particles is transferred to the matrix, causing local crystallization and carbonization of the polymer structures. This process is associated with the destruction of the original covalent bonds (e.g., C–N, C=O

• carbonized matrix, conjugated bonds, and silver cluster structures exhibits dramatically higher conductivity than the unmodified material, which can be exploited, for example, for the fabrication of flexible optoelectronics, thin-film electrodes, or electroactive sensors [12]. In addition to the increase in

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

• (Figure 2C), surrounded by a polymeric shell that regulates its release profile; alternatively, the drug may be adsorbed onto the polymeric wall (Figure 2D). In contrast, nanospheres are formed when the drug is either adsorbed onto the surface of the polymeric matrix (Figure 2B) or retained inside it

• encapsulating either hydrophilic or hydrophobic drugs, depending on the physicochemical compatibility between the drug and the polymeric matrix. The distribution of the drug within the matrix is influenced by drug–polymer interactions, as well as by the type of polymer and the manufacturing method employed

• . Release from nanospheres is generally governed by a combination of polymer degradation and drug diffusion through the matrix. Additionally, when hydrophilic polymers are employed, swelling-induced release becomes relevant, wherein polymer chain relaxation significantly influences the diffusion rate and

Multifunctional anionic nanoemulsion with linseed oil and lecithin: a preliminary approach for dry eye disease

• Niédja Fittipaldi Vasconcelos,
• Almerinda Agrelli,
• Rayane Cristine Santos da Silva,
• Carina Lucena Mendes-Marques,
• Isabel Renata de Souza Arruda,
• Priscilla Stela Santana de Oliveira,
• Mércia Liane de Oliveira and
• Giovanna Machado

Beilstein J. Nanotechnol. 2025, 16, 1711–1733, doi:10.3762/bjnano.16.120

• ), making it a promising ingredient for NE formulations [31][32][33]. Clinical studies have demonstrated that fatty acids derived from linseed oil are effective in alleviating DED, primarily by modulating inflammatory responses and downregulating key molecular markers, such as interleukin-1 beta, matrix

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

• the bending of bilayer geometries due to an overestimated contribution of sclerenchyma fiber stiffness. Geometries with discrete fibers embedded in a brown tissue matrix more accurately reproduced the bending angles observed in experiments. This highlights the importance of the chosen material

• embedded in a brown tissue matrix. Therefore, the use of more complex geometries, such as a remodeled scale, is recommended for a more accurate study of the biological system in silico. Tissue sample extraction from a Pinus jeffreyi cone scale. (A) The position of the cross section along the longitudinal

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

• the single-spin density matrix. One might choose to make or not to make the Markov approximation, obtaining different types of master equations. Given that the exact solution is known, different master equation solutions can be compared against it. This allows to study the limits of applicability of

• Hamiltonian now can be written as a 2 × 2 block matrix in the single-spin Hilbert space: Here are the Hamiltonians HLMG corresponding to eigenvalues ±1 of τz. These types of Hamiltonians are the Hamiltonians of the generalized Rabi models. These describe a two-level system connected not to a single bosonic

• 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

Prospects of nanotechnology and natural products for cancer and immunotherapy

• Jan Filipe Andrade Santos,
• Marcela Bernardes Brasileiro,
• Pamela Danielle Cavalcante Barreto,
• Ligiane Aranha Rocha and
• José Adão Carvalho Nascimento Júnior

Beilstein J. Nanotechnol. 2025, 16, 1644–1667, doi:10.3762/bjnano.16.116

• biological environments, potential immunogenicity, scalability of manufacturing processes, and the need for comprehensive long-term toxicity studies [20][21]. Overcoming biological barriers, such as penetration through the dense tumor extracellular matrix, also remains a major hurdle [19]. Nevertheless

• -EGCG, as well as manganin, FeCl3, and the PD-L1 antibody. Hyaluronic acid is a non-sulfated glycosaminoglycan component of the extracellular matrix and has diverse biomedical applications [115]. It can be obtained through the fermentation of bacteria and yeasts, as well as animal sources, using

Venom-loaded cationic-functionalized poly(lactic acid) nanoparticles for serum production against Tityus serrulatus scorpion

• Philippe de Castro Mesquita,
• Karla Samara Rocha Soares,
• Manoela Torres-Rêgo,
• Emanuell dos Santos-Silva,
• Mariana Farias Alves-Silva,
• Alianda Maira Cornélio,
• Matheus de Freitas Fernandes-Pedrosa and
• Arnóbio Antônio da Silva-Júnior

Beilstein J. Nanotechnol. 2025, 16, 1633–1643, doi:10.3762/bjnano.16.115

• % and 1.0% (w/w) with T. serrulatus venom was possible to evidence that all proteins of the venom were incorporated within the polymeric matrix, since the protein bands were not evidenced in the gel. The PLA nanoparticles and bovine serum albumin (BSA) were used as controls (Figure 1). This assay

Nanotechnology-based approaches for the removal of microplastics from wastewater: a comprehensive review

• Nayanathara O Sanjeev,
• Manjunath Singanodi Vallabha and
• Rebekah Rubidha Lisha Rabi

Beilstein J. Nanotechnol. 2025, 16, 1607–1632, doi:10.3762/bjnano.16.114

• membrane by integrating sustainably synthesized MIL-100 (Fe) MOF nanoparticles into a polysulfone (PSF) matrix. This PSF/MIL-100 (Fe) membrane exhibited substantial improvements over the unmodified PSF membrane (M0), particularly in terms of membrane structure, surface hydrophilicity (with the water

Bioinspired polypropylene-based functionally graded materials and metamaterials modeling the mistletoe–host interface

• Lina M. Rojas González,
• Naeim Ghavidelnia,
• Christoph Eberl and
• Max D. Mylo

Beilstein J. Nanotechnol. 2025, 16, 1592–1606, doi:10.3762/bjnano.16.113

• -reinforced polypropylene and exhibits a continuously graded mistletoe-inspired V-shaped interface. Microtomographic analyses quantified the gradual transition of the glass fiber content along one specimen from 0 to 30%, further revealing the random fiber orientation in the polymer matrix. Tensile tests

• toolbox of the Matlab software (version R2023a, MathWorks Inc., Natick, MA, United States). First, all intensity values of the images were normalized. Only the area of the polypropylene matrix was considered, and the pixel area of the resulting binary image (At) was calculated. A second binary

•  4A shows representative cross-sectional μCT images for each scan. The relatively small difference in brightness between the PP matrix (dark grey) and the surrounding air (black) compared to the very bright appearing glass fibers can be explained by the large difference in density between the polymer

Transient electronics for sustainability: Emerging technologies and future directions

• Jae-Young Bae,
• Myung-Kyun Choi and
• Seung-Kyun Kang

Beilstein J. Nanotechnol. 2025, 16, 1545–1556, doi:10.3762/bjnano.16.109

• the water diffusion pathway [92][93]. For instance, blending high-aspect-ratio inorganic flakes (e.g., SiO2) with a biodegradable poly(caprolactone) matrix has been shown to create tortuous diffusion paths that hinder direct water penetration, thereby improving moisture resistance and achieving a

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

• profile. The average size of the Si NPs was calculated using ImageJ software. A more detailed analysis of the TEM images showed the tendency of the particles prepared using an annular beam to gather into aggregates surrounded by a non-uniform matrix or shell, while in the case of a Gaussian beam, the

Nanomaterials for biomedical applications

• Iqra Zainab,
• Zohra Naseem,
• Syeda Rubab Batool,
• Filippo Pierini,
• Seda Kizilel and
• Muhammad Anwaar Nazeer

Beilstein J. Nanotechnol. 2025, 16, 1499–1503, doi:10.3762/bjnano.16.105

• tissue engineering, scaffolds are the main element that assists cells to grow, organize, and create new tissue [25]. Nanofibers are ideal in creating scaffolds because they have a large surface area and resemble the natural extracellular matrix (ECM). Moreover, nanofibers offer a proper place for cells

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

Synthesis and antibacterial properties of nanosilver-modified cellulose triacetate membranes for seawater desalination

• Lei Wang,
• Shizhe Li,
• Kexin Xu,
• Wenjun Li,
• Ying Li and
• Gang Liu

Beilstein J. Nanotechnol. 2025, 16, 1380–1391, doi:10.3762/bjnano.16.100

• and Ag) are present in extremely low quantities relative to the CTA matrix. (For specific details on the content of the modifying layers, please refer to Supporting Information File 1.) The sensitivity of FTIR spectroscopy depends on the concentration of the absorbed species and the path length of the

• the low content of the modifying agents (PDA and Ag) relative to the CTA matrix. This low concentration results in negligible changes in the overall thermal behavior of the composite materials, as detected by TGA. This observation also suggests that the interaction between Ag and CTA or between PDA

• close to the theoretical value of PDA, which proves the successful modification of PDA on the surface of CTA. At the same time, it indicates that the thickness of PDA layer exceeds the maximum thickness detectable by XPS which has a detectable thickness of organic matrix of about 7.5 nm [30]. In the