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

• -based AuNP colorimetric biosensors In this sensing system, the recognition material is the RNA aptamer, the indicator material is the gold nanoparticle (AuNP), and the sensing signal is colorimetric. The excellent optical-electronic characteristics of AuNPs have been recently considered in point-of-care

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

• units of tB). Our calculations are performed away from the half-filling as this regime was shown to produce a uniform electronic distribution in Fibonacci chains [22], where the HF potential does not alter superconducting properties. Here, we adopt an electron density of ne = 0.5. Our qualitative

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

• properties, with electronic and quantum mechanical behaviors that continue to surprise the scientific community [11]. Researchers are continuously developing and reporting new nanomaterials with unique properties tailored for diverse applications. Thus, the properties of materials once considered impossible

• and premium branding (Table 1). This allows them to make larger profits while gradually preparing the market. For example, Apple Inc. and Samsung are well ahead in graphene research for electronic applications [18][19]. However, highly flexible smartphones and advanced graphene-based devices remain

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

• enabled us to extrapolate trends for electron transport in thicker multilayer carbon and h-BN materials. Keywords: NEGF; DFT; nano-junction; Introduction Multilayer graphene nanomaterials exhibit interesting electronic properties and find application in battery electrode materials [1], electrocatalysis

• [2], nanoscale electronics and electronic components [3], thermoelectric devices [4], and transparent films [5]. Graphene is a two-dimensional zero-bandgap semiconductor with excellent bulk conductivity. Its in-plane electron transport strongly depends on lattice order, lattice defects, and three

• graphene has focused on in-plane conductivity, and only very few studies have reported data on the electron transport properties between the adjacent planes [9][10][11][12][13]. Defects in graphene can alter its electronic states and lead to deviations from its intrinsic properties. We look at two common

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

• delivery systems (DDSs); nanocarriers; quality control (QC); Introduction Nanomaterials Nanomaterials (NMs) have an extensive array of various properties and applications across many industries, including the biomedical, health care, food/agriculture, industrial, environmental, electronic, and renewable

Multifrequency AFM integrating PeakForce tapping and higher eigenmodes for heterogeneous surface characterization

• Yanping Wei,
• Jiafeng Shen,
• Yirong Yao,
• Xuke Li,
• Ming Li and
• Peiling Ke

Beilstein J. Nanotechnol. 2025, 16, 2077–2085, doi:10.3762/bjnano.16.142

• and electronic signal separation enables simultaneous, effective acquisition of quasi-static force maps and eigenmode-derived material contrast. Dual-probe comparative analysis of MMT nanosheets The effectiveness of the method was evaluated using the soft (ScanAsyst-Air, 0.48 N·m−1) and stiff (NSC15

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

• the softer cantilevers. At this time, the base noise of our AFM system and electronic sampling of the deflection signal is too large to automate the fitting of the resonance peak with reasonable successful fits, limiting the application of our method to cantilevers having a lower spring constant. With

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

• recently become the focus of significant attention [18][19]. The eco-friendly applications of AgNPs in the biomedical, pharmaceutical, cosmetic, sanitation, and electronic sectors have driven extensive research into their biosynthesis [20][21][22]. Silver nanoparticles exhibit unique physical and chemical

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

• gradients), and mechanical (e.g., pressure variations) stimuli [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. These responses are directly connected with electronic and transport properties, which in turn depend on the equilibrium between emission and absorption of

• , presenting rather simple electronic and phonon structures that are dependent on N [31][32]. When they are host-free, their phonon structures present longitudinal and transversal modes but their encapsulation by CNT inhibits transversal modes [29][30][31][32][55][56][57][58][59]. This inhibition seems to be

• Raman spectra as well as the independent evolution as a function of temperature of the Raman bands from CNT and LCC (see Figure 1 and Figure S1 in Supporting Information File 1) suggest that the interaction between distinct LCC, and LCC and CNT are not strong enough to affect their electronic and phonon

Piezoelectricity of layered double hydroxides: perspectives regarding piezocatalysis and nanogenerators

• Evgeniy S. Seliverstov,
• Evgeniya A. Tarasenko and
• Olga E. Lebedeva

Beilstein J. Nanotechnol. 2025, 16, 1812–1817, doi:10.3762/bjnano.16.124

• nanostructure itself demonstrated a piezoelectric charge coefficient of 274 pm·V−1. This work opens the door to future applications of LDHs in smart wearable electronic devices as both power generators and supercapacitors. In addition to the intrinsic piezoelectric properties of LDHs, it has been demonstrated

• evidence demonstrated that dual oxygen vacancies in Ni/Fe-LDHs create interfacial bonds that mitigate carrier localization effects and unfavorable influences during piezocatalysis and photocatalysis. These features promote exciton dissociation and charge transfer. Furthermore, the strong electronic

• carrier localization effects), or to interfacial electronic interactions that facilitate charge transfer. While these mechanisms may coexist, many publications lack the necessary control experiments (e.g., mechanical stimulation without light/oxidant, photocatalysis without stress, or defect-free samples

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

• for the precise introduction of implanted atoms into the surface layers without the need for subsequent chemical modification, thus opening new possibilities in the development of functional thin films. In this study, Ag ions were used to modify polymer matrices to improve chemical and electronic

• 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

• controlled modification of the electrical properties of dielectric and semiconducting materials [7]. When Ag ions are implanted into polymer substrates, such as polyimide (PI) or graphene oxide (GO), fundamental changes occur at the molecular and electronic levels, leading to a significant decrease in the

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

• spectroscopy (XPS) is a powerful surface science technique that enables the investigation of modifications in the chemical environment of a sample surface and its electronic states, owing to its exceptional surface sensitivity. However, the requirement for ultrahigh vacuum (UHV) conditions previously limited

• operando. With IRRAS, vibrational information is available, which greatly complements the electronic information obtained by photoelectron spectroscopy. This combination enables a more complete picture of surface reaction mechanisms. The examples discussed here focus on “model catalysts”, that is, systems

• reactions in batteries, fuel cells, corrosion, and electrocatalysis. With the advent of ambient pressure setups and specially designed sample environments, APXPS now allows for direct probing of the chemical and electronic structure at solid–liquid interfaces under realistic conditions. This capability

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

• Seidali Seidov Natalia Pugach Anatolie Sidorenko HSE University, Moscow, Russia NUST MISIS, Moscow, Russia Technical University of Moldova, Institute of Electronic Engineering and Nanotechnologies, Republic of Moldova Moscow Institute of Physics and Technology, Dolgoprudny, Russia 10.3762/bjnano

Modeling magnetic properties of cobalt nanofilms used as a component of spin hybrid superconductor–ferromagnetic structures

• Aleksey Fedotov,
• Olesya Severyukhina,
• Anastasia Salomatina and
• Anatolie Sidorenko

Beilstein J. Nanotechnol. 2025, 16, 1557–1566, doi:10.3762/bjnano.16.110

• Engineering Department, Kalashnikov Izhevsk State Technical University, Studencheskaya 7, Izhevsk 426069, Russia Institute of Electronic Engineering and Nanotechnologies, Technical University of Moldova, 3/3 Academiei St., Chisinau, 2028, Moldova Moscow Institute of Physics and Technology, 9, Institutskiy per

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

• lifetime control through strategies such as protective encapsulation. This Perspective outlines critical opportunities and technical directions to guide the development of next-generation transient electronic systems. Keywords: biodegradable/bioresorbable electronics; biodegradable materials

• rehabilitation [10][11], and orthopedic healing [12], where device functionality is required only for a defined recovery period. In such cases, transient electronic devices offer distinct advantages over conventional implants by providing essential sensing or therapeutic functions during the acute phase and

• electronic devices has created fertile ground for the convergence of flexible electronics with lifetime-controllable material systems [13]. This confluence has given rise to the emerging field of transient electronics, that is, devices engineered to function over a defined time window before undergoing

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

• its prominent optical and electronic properties, is the most widely used semiconductor material in many fields of microelectronics, optics, photovoltaics, and molecular sensing. Nevertheless, even despite its widespread application, the interest in silicon-based structures, especially having sizes in

• nanowires facilitates the electronic transport along the wire axis, while the transport of the ions occurs in the transverse direction, providing shorter diffusion distances. All these aspects underline the benefits of Si nanowires and the need to develop novel approaches for their formation. Despite

• -infrared regions has been detected. However, as can be concluded from Figure 6a, the absorption cutoff wavelength differs for each studied sample, indicating different optical and electronic properties of the formed nanostructures. The variation of the optical properties can be caused by structural

Cross-reactivities in conjugation reactions involving iron oxide nanoparticles

• Shoronia N. Cross,
• Katalin V. Korpany,
• Hanine Zakaria and
• Amy Szuchmacher Blum

Beilstein J. Nanotechnol. 2025, 16, 1504–1521, doi:10.3762/bjnano.16.106

• conclude that the structure of the payload molecule plays a very important role in determining the efficacy of the EDC/NHS coupling reaction, in that steric hindrance and the electronic structure of the molecule are critical parameters to take into consideration when choosing a suitable amine; thus

• down to 1 mM, limited by the detection limit of Cy5. Our investigation into the EDC coupling of several primary amine-containing dyes shows that care must be taken in choosing an appropriate amine for coupling, as the structure can inhibit coupling through either steric or electronic effects. Our

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

• through the interaction of the electromagnetic waves with the electrons of the NPs, causing collective motion in metallic particles or perturbations in the electronic orbitals of non-metallic NPs [42][43]. In the case of non-metals, nanosecond laser pulses transfer energy from electrons to phonons

• CuPc films [105]. In order to fabricate a NP/graphene nanocomposite, drops of colloidal solutions from each samples were cast and spin-coated onto graphene substrates to obtain a “starry-sky” morphology, which can be used in fuel cells, sensors, catalysis, and electronic and optical devices [106

Parylene-coated platinum nanowire electrodes for biomolecular sensing applications

• Chao Liu,
• Peker Milas,
• Michael G. Spencer and
• Birol Ozturk

Beilstein J. Nanotechnol. 2025, 16, 1392–1400, doi:10.3762/bjnano.16.101

• [22]. Due to these attributes, parylene-C, along with other variants of parylene, has been extensively utilized in the protection of electronic devices and surface modification of biomedical devices [23]. In this study, platinum was chosen as the DENA growth material due to its exceptional

Automated collection and categorisation of STM images and STS spectra with and without machine learning

• Dylan Stewart Barker and
• Adam Sweetman

Beilstein J. Nanotechnol. 2025, 16, 1367–1379, doi:10.3762/bjnano.16.99

• learning; spectroscopy; scanning tunnelling microscopy (STM); scanning tunnelling spectroscopy (STS); Introduction Scanning tunnelling spectroscopy (STS) extends the capability of scanning tunnelling microscopy (STM) beyond topographic imaging, allowing for the direct measurement of the electronic

• misshaped tips cause averaging of contributions over larger areas, reducing the spatial resolution and potentially blending the electronic features between different sites. However, even for tips with high spatial resolution, different tip structures and probe terminations are known to influence these

• “flat” DOS, which is typically achieved by using a purely metallic tip. However, most tips do not demonstrate a perfectly flat local density of states (LDOS) as they have a complex electronic structure governed by the geometry of the metallic cluster at the tip apex [8][9][10][11][12]. Non-metallic

Deep-learning recognition and tracking of individual nanotubes in low-contrast microscopy videos

• Vladimir Pimonov,
• Said Tahir and
• Vincent Jourdain

Beilstein J. Nanotechnol. 2025, 16, 1316–1324, doi:10.3762/bjnano.16.96

• ; polarization microscopy; Introduction Carbon nanotubes (CNTs), discovered over three decades ago, continue to present unresolved questions and challenges. Their exceptional properties, both theoretically [1][2] and experimentally demonstrated [3], make them desirable for electronic and optical devices

Enhancing the photoelectrochemical performance of BiOI-derived BiVO₄ films by controlled-intensity current electrodeposition

• Huu Phuc Dang,
• Khanh Quang Nguyen,
• Nguyen Thi Mai Tho and
• Tran Le

Beilstein J. Nanotechnol. 2025, 16, 1289–1301, doi:10.3762/bjnano.16.94

• optimize the crystallinity, surface morphology, and electronic properties of the films. Subsequently, an electrochemical deposition method was developed to facilitate the uniform distribution of V2O5 among Bi–O–I flakes to homogeneously enhance the conversion reaction. The XRD pattern confirms the

• charge carriers, which severely restrict its PEC performance [10][11][12]. Various strategies have been explored to overcome these challenges and optimize the structural, electronic, and surface properties of BiVO4 [13][14]. Hydrothermal synthesis has been used to produce highly crystalline BiVO4 films

• observed in the Raman spectra. These structural features are critical for improving the electronic and catalytic properties of BiVO4 photoanodes. To complement the XRD-derived crystallite sizes, the particle sizes were estimated from the FESEM images. As shown in Table 1, the particle size trends do not

Hydrogels and nanogels: effectiveness in dermal applications

• Jéssica da Cruz Ludwig,
• Diana Fortkamp Grigoletto,
• Daniele Fernanda Renzi,
• Wolf-Rainer Abraham,
• Daniel de Paula and
• Najeh Maissar Khalil

Beilstein J. Nanotechnol. 2025, 16, 1216–1233, doi:10.3762/bjnano.16.90

• by electronic beam irradiation. Polyvinyl alcohol hydrogels can be used for wound healing. Suhaeri et al. (2018) manufactured an adhesive hydrogel with PVA and a derivative of human pulmonary fibroblasts, in addition to ciprofloxacin, for treating infected wounds [95]. For the preparation of the

Electronic and optical properties of chloropicrin adsorbed ZnS nanotubes: first principle analysis

• Prakash Yadav,
• Boddepalli SanthiBhushan and
• Anurag Srivastava

Beilstein J. Nanotechnol. 2025, 16, 1184–1196, doi:10.3762/bjnano.16.87

• Information Technology, Allahabad, UP-211015, India 10.3762/bjnano.16.87 Abstract Zinc sulfide nanotubes have garnered significant attention as potential candidates for chemical sensing applications owing to their exceptional structural, electronic, and optical properties. In this study, we employed density

• , optical absorption, and optical conductivity of the ZnS NT-CP system. Our findings reveal that the interaction between CP and ZnS NT induces notable changes in the electronic and optical properties of the nanotube, including a substantial bandgap reduction of up to ≈40% for the specific orientation A. The

• was performed with stringent convergence criteria: a maximum force tolerance of 0.05 eV/Å and a stress tolerance of 0.05 eV/Å3. These parameters ensured the reliability and accuracy of the resulting structural configurations for subsequent electronic and transport property analyses. To study the

Towards a quantitative theory for transmission X-ray microscopy

• James G. McNally,
• Christoph Pratsch,
• Stephan Werner,
• Stefan Rehbein,
• Andrew Gibbs,
• Jihao Wang,
• Thomas Lunkenbein,
• Peter Guttmann and
• Gerd Schneider

Beilstein J. Nanotechnol. 2025, 16, 1113–1128, doi:10.3762/bjnano.16.82

• nm, from which quantitative data are often extracted. For example, in materials science applications, nanoscale spectromicroscopy [5][6][7][8] is used to examine a sample around its absorption edges, which provides insights into its electronic structure. In biomedical applications [9][10][11][12