Soft materials nanoarchitectonics: liquid crystals, polymers, gels, biomaterials, and others

• Katsuhiko Ariga

Beilstein J. Nanotechnol. 2025, 16, 1025–1067, doi:10.3762/bjnano.16.77

• self-organization at the molecular film level offers significant potential for a range of applications. The precise separation and alignment of π-conjugated discotic liquid crystal molecular nanowires represents an attractive area of research. Kumar, Nayak, and colleagues investigated an approach to

• . At a higher surface pressure of 40 mN·m−1, the nanowires exhibited a tendency to come closer together, resulting in the formation of a compact and uniform monolayer. The interfacial nanoarchitectonics method of separating nanowires will undoubtedly prove invaluable for the separation of other 1D

Time-resolved probing of laser-induced nanostructuring processes in liquids

• Maximilian Spellauge,
• David Redka,
• Mianzhen Mo,
• Changyong Song,
• Heinz Paul Huber and
• Anton Plech

Beilstein J. Nanotechnol. 2025, 16, 968–1002, doi:10.3762/bjnano.16.74

• the i-th and j-th atom, respectively, and ηi and ηj are their corresponding phases; rij is the internuclear separation between the i-th and j-th atoms. The interference term of the molecular scattering gives rise to the modulation feature of the total elastic scattering intensity, while the atomic

• solvated OH(H3O+) pair before separation. The experimental result showed that these features were short-lived and disappeared within ≈250 fs. This separation occurred because of the subsequent proton propagation from H3O+ to the outer-shell neutral water. The radical–cation pair dissociation process

Characterization of ion track-etched conical nanopores in thermal and PECVD SiO₂ using small angle X-ray scattering

• Shankar Dutt,
• Rudradeep Chakraborty,
• Christian Notthoff,
• Pablo Mota-Santiago,
• Christina Trautmann and
• Patrick Kluth

Beilstein J. Nanotechnol. 2025, 16, 899–909, doi:10.3762/bjnano.16.68

• attracted significant attention in the past decade because of their broad applicability in a variety of areas including biosensing, micro/ultrafiltration, desalination, ion and molecular separation, dialysis, battery technologies, blue energy generation, and nanofluidics [1][2][3][4][5][6][7][8][9][10][11

Heat-induced transformation of nickel-coated polycrystalline diamond film studied in situ by XPS and NEXAFS

• Olga V. Sedelnikova,
• Yuliya V. Fedoseeva,
• Dmitriy V. Gorodetskiy,
• Yuri N. Palyanov,
• Elena V. Shlyakhova,
• Eugene A. Maksimovskiy,
• Anna A. Makarova,
• Lyubov G. Bulusheva and
• Aleksandr V. Okotrub

Beilstein J. Nanotechnol. 2025, 16, 887–898, doi:10.3762/bjnano.16.67

• dependence for highly oriented pyrolytic graphite [51], and is similar to the dependence for a film of vertically aligned carbon nanotubes [52]. In layered graphite, there is a separation of electron orbitals with respect to symmetry: σ orbitals lie in the basal plane of graphite, while π orbitals are

Ar⁺ implantation-induced tailoring of RF-sputtered ZnO films: structural, morphological, and optical properties

• Manu Bura,
• Divya Gupta,
• Arun Kumar and
• Sanjeev Aggarwal

Beilstein J. Nanotechnol. 2025, 16, 872–886, doi:10.3762/bjnano.16.66

• acceptor level or donor levels present at the top of the valence band or at the bottom of the conduction band, respectively. This results in a decrease in the energy separation between the valence band and the conduction band. Also, the sub-bandgap values decrease with increase in ion fluence as shown in

Synthesis and magnetic transitions of rare-earth-free Fe–Mn–Ni–Si-based compositionally complex alloys at bulk and nanoscale

• Shabbir Tahir,
• Tatiana Smoliarova,
• Carlos Doñate-Buendía,
• Michael Farle,
• Natalia Shkodich and
• Bilal Gökce

Beilstein J. Nanotechnol. 2025, 16, 823–836, doi:10.3762/bjnano.16.62

• immiscibility under equilibrium conditions, which leads to elemental segregation and phase separation [35]. Additionally, standard near-equilibrium heating methods are not suitable for synthesizing CCA NPs because of inherent thermodynamic limitations [36]. While high-temperature synthesis techniques have been

Morphology and properties of pyrite nanoparticles obtained by pulsed laser ablation in liquid and thin films for photodetection

• Akshana Parameswaran Sreekala,
• Bindu Krishnan,
• Rene Fabian Cienfuegos Pelaes,
• David Avellaneda Avellaneda,
• Josué Amílcar Aguilar-Martínez and
• Sadasivan Shaji

Beilstein J. Nanotechnol. 2025, 16, 785–805, doi:10.3762/bjnano.16.60

• , and rapid energy transfer from the plasma to the surrounding liquid. The target and liquid are heated during the shockwave propagation, which may aid in the separation of material from the crater. The plasma plume cools down and releases energy to the liquid solution as it expands. This event causes

• argon ions is provided in Figure 7. The Fe 2p spectra of pyrite NPs in all solvents (Figure 7a–e) show two major peaks of Fe 2p3/2 and Fe 2p1/2 at 709 and 722 eV, respectively, which denotes the Fe2+ chemical state [44] with a separation ΔE of 13.1 eV. The peak fitting of the Fe 2p3/2 peak reveals a

• as indicators of surface recombination. Peter et al. have explained this mechanism in semiconductor photoanodes [63]. When light is turned on, an immediate photocurrent appears due to the rapid separation of electron–hole pairs in the space charge region. This initial response is followed by a decay

Synthesis of a multicomponent cellulose-based adsorbent for tetracycline removal from aquaculture water

• Uyen Bao Tran,
• Ngoc Thanh Vo-Tran,
• Khai The Truong,
• Dat Anh Nguyen,
• Quang Nhat Tran,
• Huu-Quang Nguyen,
• Jaebeom Lee and
• Hai Son Truong-Lam

Beilstein J. Nanotechnol. 2025, 16, 728–739, doi:10.3762/bjnano.16.56

• their mechanical strength and hydrophobicity. Recent studies have revealed that inorganic salt mixtures, such as zinc chloride and calcium chloride, effectively dissolve cellulose, facilitating the fabrication of cellulose membranes for gas separation and organic pollutant removal [38][39]. Specifically

The impact of tris(pentafluorophenyl)borane hole transport layer doping on interfacial charge extraction and recombination

• Konstantinos Bidinakis and
• Stefan A. L. Weber

Beilstein J. Nanotechnol. 2025, 16, 678–689, doi:10.3762/bjnano.16.52

• distributions indicative of p-i-n junctions in all devices, with a lower CPD on the ETL side where the electrons accumulate under bias. Subtracting the first measurement from the second, we filter out all information from the data that does not pertain to potential changes due to charge separation and

• position of the built-in fields that enable charge separation. These profiles that are being referred to as “electric field difference” are presented in Figure 3i–l. To extract the electric field difference profiles, we applied the following equation: Here, E is the electric field difference, V is the

• -doped HTLs, exhibit one large drop at the perovskite/HTL interface, indicative of the dominant diode junction that exists there. In order to further understand charge separation within the solar cells, we can use these photopotential profiles in order to examine charge extraction and accumulation within

Nanoscale capacitance spectroscopy based on multifrequency electrostatic force microscopy

• Pascal N. Rohrbeck,
• Lukas D. Cavar,
• Franjo Weber,
• Peter G. Reichel,
• Mara Niebling and
• Stefan A. L. Weber

Beilstein J. Nanotechnol. 2025, 16, 637–651, doi:10.3762/bjnano.16.49

• the gradient of the energy, WC, stored in the tip–sample capacitor C with respect to the tip–sample separation z, as given by where Vtip−sample specifies the electrical voltage across the tip–sample gap. In conventional EFM with single-frequency excitation, Vtip−sample is given by Equation 2 [18

• together with the parameters of a regular EFM cantilever (NuNano SPARK 70 Pt) and an electrical drive of V = 2 V and a mechanical amplitude of Am = 10 nm. Comparing the graphs, we can immediately see that the total C′ signal retains a significant long-range contribution even at a tip–sample separation of

• total signal at a given distance z. At a typical tip–sample separation of 10 nm, the apex signal makes up more than 82% of the complete C″ signal, while the apex contribution to the first capacitance gradient only makes up less than 10% of the total C′ signal. In closer proximity of 1 nm distance to the

A formulation containing Cymbopogon flexuosus essential oil: improvement of biochemical parameters and oxidative stress in diabetic rats

• Ailton Santos Sena-Júnior,
• Cleverton Nascimento Santana Andrade,
• Pedro Henrique Macedo Moura,
• Jocsã Hémany Cândido dos Santos,
• Cauãn Torres Trancoso,
• Eloia Emanuelly Dias Silva,
• Deise Maria Rego Rodrigues Silva,
• Ênio Pereira Telles,
• Luiz André Santos Silva,
• Isabella Lima Dantas Teles,
• Sara Fernanda Mota de Almeida,
• Daniel Alves de Souza,
• Jileno Ferreira Santos,
• Felipe José Aidar Martins,
• Ana Mara de Oliveira e Silva,
• Sandra Lauton-Santos,
• Guilherme Rodolfo Souza de Araujo,
• Cristiane Bani Correa,
• Rogéria De Souza Nunes,
• Lysandro Pinto Borges and
• Ana Amélia Moreira Lira

Beilstein J. Nanotechnol. 2025, 16, 617–636, doi:10.3762/bjnano.16.48

• . The structural alteration observed, marked by the separation of cells and loss of cohesion between them, compromised the integrity of the pancreatic parenchyma, which may indicate dysfunction in enzyme production and secretion, as well as an exacerbated inflammatory response. In addition, cell

• , 0.25 μm film thickness) was used for compound separation, with helium as a 99.999% pure carrier gas (White Martins SA) at a flow rate of 1 mL/min and a split/splitless autoinjector. For the analysis, a solution of EOCF was prepared at a concentration of approximately 10 mg/mL using hexane as a solvent

Polyurethane/silk fibroin-based electrospun membranes for wound healing and skin substitute applications

• Iqra Zainab,
• Zohra Naseem,
• Syeda Rubab Batool,
• Muhammad Waqas,
• Ahsan Nazir and
• Muhammad Anwaar Nazeer

Beilstein J. Nanotechnol. 2025, 16, 591–612, doi:10.3762/bjnano.16.46

Functionalized gold nanoflowers on carbon screen-printed electrodes: an electrochemical platform for biosensing hemagglutinin protein of influenza A H1N1 virus

• Carlos Enrique Torres-Méndez,
• Sharmilee Nandi,
• Klara Martinovic,
• Patrizia Kühne,
• Yifan Liu,
• Sam Taylor,
• Maria Lysandrou,
• Maria Ines Berrojo Romeyro Mascarenhas,
• Viktoria Langwallner,
• Javier Enrique Sebastián Alonso,
• Ivana Jovanovic,
• Maike Lüftner,
• Georgia-Vasiliki Gkountana,
• David Bern,
• Abdul-Raouf Atif,
• Ehsan Manouchehri Doulabi,
• Gemma Mestres and
• Masood Kamali-Moghaddam

Beilstein J. Nanotechnol. 2025, 16, 540–550, doi:10.3762/bjnano.16.42

• could be seen experimentally (black curve of Figure 3), where the cyclic voltammetry (CV) analysis shows a large peak-to-peak separation of 0.72 V for the [Fe(CN)6]3−/4− redox pair. This differs significantly from the theoretical 0.057 V peak-to-peak separation in reversible redox processes that involve

• based on electrodeposition of gold nanoflowers increased the current response of the electrode because of the larger electroactive surface area compared to a CSPE (Figure 3). The CV analysis of the AuNFs/CSPE showed a peak-to-peak separation of 0.37 V. This value is smaller than in the commercial CSPE

• largest change in the CV was observed after the functionalization of the AuNFs with 4-ATP through stable Au–S bonds. In this case, the peak-to-peak separation for the 4-ATP/AuNFs/CSPE was 0.16 V, showing that the redox reversibility for the [Fe(CN)6]3−/4− pair and the current response of the electrode

N₂⁺-implantation-induced tailoring of structural, morphological, optical, and electrical characteristics of sputtered molybdenum thin films

• Usha Rani,
• Kafi Devi,
• Divya Gupta and
• Sanjeev Aggarwal

Beilstein J. Nanotechnol. 2025, 16, 495–509, doi:10.3762/bjnano.16.38

• separation, which aligns with the measured tensile stress. In the nitrogen-implanted films, all peaks are shifted to reduced 2θ values compared to the as-deposited films, indicating compressive stress. Nevertheless, the peak positions for the implanted films shifted towards increasing 2θ values as the film

Synthetic-polymer-assisted antisense oligonucleotide delivery: targeted approaches for precision disease treatment

• Ana Cubillo Alvarez,
• Dylan Maguire and
• Ruairí P. Brannigan

Beilstein J. Nanotechnol. 2025, 16, 435–463, doi:10.3762/bjnano.16.34

• PLL-based system to enhance ribozyme-catalysed RNA recombination and oligonucleotide assembly within peptide–RNA condensates [27]. This work demonstrated that low-molecular-weight PLL (Mw = 1–5 kDa) facilitated charge-mediated phase separation, significantly shifting the reaction equilibrium from RNA

Engineered PEG–PCL nanoparticles enable sensitive and selective detection of sodium dodecyl sulfate: a qualitative and quantitative analysis

• Soni Prajapati and
• Ranjana Singh

Beilstein J. Nanotechnol. 2025, 16, 385–396, doi:10.3762/bjnano.16.29

• ]. The techniques mentioned are expensive, use toxic chemicals, are laborious, and require highly skilled professionals. Apart from that, each method has limitations, such as chromatographic techniques requiring the separation of the target analyte from complex mixtures. The commonly employed ionometric

Pulsed laser in liquid grafting of gold nanoparticle–carbon support composites

• Madeleine K. Wilsey,
• Teona Taseska,
• Qishen Lyu,
• Connor P. Cox and
• Astrid M. Müller

Beilstein J. Nanotechnol. 2025, 16, 349–361, doi:10.3762/bjnano.16.26

• methodology is more rapid and efficient than existing processes because it obviates the heating, cooling, and separation steps of traditional chemical nanoparticle syntheses. It additionally eliminates post-synthetic attachment of catalyst nanoparticles that results in wastage of unattached catalyst material

• surfactant-free gold nanoparticles directly on carbon fiber paper supports by integrating nanoparticle synthesis and attachment, obviating typical laborious nanoparticle synthesis, separation, and immobilization procedures. Pulsed laser-grafted composites exhibited zero measurable charge transfer resistance

Enhancing mechanical properties of chitosan/PVA electrospun nanofibers: a comprehensive review

• Nur Areisman Mohd Salleh,
• Amalina Muhammad Afifi,
• Fathiah Mohamed Zuki and
• Hanna Sofia SalehHudin

Beilstein J. Nanotechnol. 2025, 16, 286–307, doi:10.3762/bjnano.16.22

• , phase separation, self-assembly, and electrospinning. Electrospinning is considered the most versatile and widely used technique for nanofiber fabrication, offering greater control over fiber structures, higher productivity, simplicity, lower cost, and potential for industrial use [69][70

• steps but minimizes the risk of incomplete dissolution or phase separation due to different solubility requirements of each polymer [84]. Nevertheless, the instabilities can still occur when blending the two solutions if the solvents are incompatible. Sequential electrospinning Sequential

• central axis, which separates two different solutions into two separate chambers within the nozzle [96]. The two different solutions should possess similar electrical conductivity for the materials to eject as a single jet without any phase separation. This technique can be regarded as a variant of

Emerging strategies in the sustainable removal of antibiotics using semiconductor-based photocatalysts

• Yunus Ahmed,
• Keya Rani Dutta,
• Parul Akhtar,
• Md. Arif Hossen,
• Md. Jahangir Alam,
• Obaid A. Alharbi,
• Hamad AlMohamadi and
• Abdul Wahab Mohammad

Beilstein J. Nanotechnol. 2025, 16, 264–285, doi:10.3762/bjnano.16.21

• antibiotics, several physical, biological, and chemical methods have been applied [13][18][19]. Various physical wastewater treatment techniques are based on mechanical separation to reduce contaminant levels by relocating rather than degrading antibiotics [7][8][20]. Biological approaches, such as the

• degradation and solid–liquid separation are also commonly used in making the pollutants non-toxic or non-hazardous [13][23]. It should be noted that many of the conventional methods fail in degrading antibiotics completely since most antibiotics are very complex in structure and are even resistant to

• –hole separation. The detailed mechanism of dopant ions in semiconductor materials is shown in Figure 4. Mechanisms of heterojunction photocatalysts Most semiconductor materials are susceptible to electron–hole recombination, which reduces photocatalytic efficacy. As a result, additional efforts must be

Preferential enrichment and extraction of laser-synthesized nanoparticles in organic phases

• Theo Fromme,
• Maximilian L. Spiekermann,
• Florian Lehmann,
• Stephan Barcikowski,
• Thomas Seidensticker and
• Sven Reichenberger

Beilstein J. Nanotechnol. 2025, 16, 254–263, doi:10.3762/bjnano.16.20

• ) was found to direct both the nanoparticles’ phase selectivity and recovery after cycling. The observed correlations provide potential guidelines for nanoparticle extraction and size separation, relevant for phase transfer and cycling during homogeneous catalysis. Keywords: catalysis; laser ablation

• in liquid; laser synthesis and processing of colloids; phase transfer; size separation; thermomorphic multiphase system; Introduction Laser ablation in liquids (LAL) provides nanoparticles without the need of external surfactants while retaining the initial composition of the educt material in the

• two solvents in both phases could be related to two possibilities. First, the mixing of the solvents affects the phase separation, which was previously associated with a decrease in colloidal stability if the phase separation was too fast. The mixing of the solvents can lead to a faster or slower

A review of metal-organic frameworks and polymers in mixed matrix membranes for CO₂ capture

• Charlotte Skjold Qvist Christensen,
• Nicholas Hansen,
• Mahboubeh Motadayen,
• Nina Lock,
• Martin Lahn Henriksen and
• Jonathan Quinson

Beilstein J. Nanotechnol. 2025, 16, 155–186, doi:10.3762/bjnano.16.14

• the gas separation potential of MOF-based MMMs in CO2 capture applications are highlighted. Keywords: CO2 capture; gas separation; inorganic filler; metal-organic framework (MOF); mixed matrix membrane (MMM); Review 1 Introduction The continuous rise in global CO2 emissions has unfolded an era of

• , including regenerative solvent-based absorption [2][6], fixed-bed adsorption [7], cryogenic separation techniques [8], and membrane separation methods [9][10][11][12]. Of these, membrane technology offers advantages such as exceptional stability, high efficiency, low energy consumption, and ease of

• operation [5]. However, a significant drawback of membrane separation is the inherent trade-off between permeability (pressure-normalized flux) and selectivity (αA/B) for gases A and B, as described by the relationship in Equation 1 [5][12][13][14]. where PA is the steady-state permeability of the more

Instance maps as an organising concept for complex experimental workflows as demonstrated for (nano)material safety research

• Benjamin Punz,
• Maja Brajnik,
• Joh Dokler,
• Jaleesia D. Amos,
• Litty Johnson,
• Katie Reilly,
• Anastasios G. Papadiamantis,
• Amaia Green Etxabe,
• Lee Walker,
• Diego S. T. Martinez,
• Steffi Friedrichs,
• Klaus M. Weltring,
• Nazende Günday-Türeli,
• Claus Svendsen,
• Christine Ogilvie Hendren,
• Mark R. Wiesner,
• Martin Himly,
• Iseult Lynch and
• Thomas E. Exner

Beilstein J. Nanotechnol. 2025, 16, 57–77, doi:10.3762/bjnano.16.7

• and bottom-up and evolved based on real applications by the nanosafety research community. Instance maps for on-the-fly data FAIRification Much of the potential benefit provided by instance maps arises from removing the current separation of data production from data curation, harmonisation, reporting

• differentiate between different types of properties (see Figure 1 and Figure 2). In the NIKC curation efforts, all data were extracted from scientific publications; thus, there was no obvious separation in the eyes of the curator between data produced specifically within a paper (primary data) or data taken

• from this raw data, such as EC50s or metal bioaccumulation rates into organisms. Information regarding the protocols and methods used for data collection and how samples were processed is also attached to the data. For example, soil porewater separation protocols, needed to help generate porewater

Theoretical study of the electronic and optical properties of a composite formed by the zeolite NaA and a magnetite cluster

• Joel Antúnez-García,
• Roberto Núñez-González,
• Vitalii Petranovskii,
• H’Linh Hmok,
• Armando Reyes-Serrato,
• Fabian N. Murrieta-Rico,
• Mufei Xiao and
• Jonathan Zamora

Beilstein J. Nanotechnol. 2025, 16, 44–53, doi:10.3762/bjnano.16.5

• characteristics of zeolites depend largely on the chemical composition of the framework, specifically the Si/Al ratio [1][2]. These characteristics make zeolites highly appealing for a wide range of applications, including the production of fine chemicals [3][4], gas separation [5][6][7], ion exchange [8][9][10

Mechanistic insights into endosomal escape by sodium oleate-modified liposomes

• Ebrahim Sadaqa,
• Satrialdi,
• Fransiska Kurniawan and
• Diky Mudhakir

Beilstein J. Nanotechnol. 2024, 15, 1667–1685, doi:10.3762/bjnano.15.131

• the lipid bilayer, reinforcing the observed differences in their membrane integration and potential membrane modulation effects. The distance plots in Figure 5c,d demonstrate the separation between the center of mass of the POPC and POPG components and the interacting molecules over time. For OLA, a

Attempts to preserve and visualize protein corona on the surface of biological nanoparticles in blood serum using photomodification

• Julia E. Poletaeva,
• Anastasiya V. Tupitsyna,
• Alina E. Grigor’eva,
• Ilya S. Dovydenko and
• Elena I. Ryabchikova

Beilstein J. Nanotechnol. 2024, 15, 1654–1666, doi:10.3762/bjnano.15.130

• separation of some components from the surface of bio-NPs, probably due to the mechanical action of sucrose particles and clusters on the surface of bio-NPs. It is also possible to suppose chemical interactions of sucrose molecules with surface molecules of bio-NPs. However, we do not have factual data for

• dust-like substance (Figure 6l) were associated. Chylomicrons were observed after all four repetitions of the isolation of bio-NPs on a sucrose gradient from NBS, and the phenomenon of their separation from the surrounding contaminations is unclear. The chylomicrons were identified based on published