Ultrathin water layers on mannosylated gold nanoparticles

• Maiara A. Iriarte Alonso,
• Jorge H. Melillo,
• Silvina Cerveny,
• Yujin Tong and
• Alexander M. Bittner

Beilstein J. Nanotechnol. 2025, 16, 2183–2198, doi:10.3762/bjnano.16.151

• either to the other dipole orientation of the CH group between the two samples [27], or to the charges of the molecules being opposite [28]. The latter seems unlikely since the isoelectric points of the two samples are similar. From symmetry rules and the ssp-polarization, one can deduce that the CH2

• for ppp polarization (all beams polarized normal to the surface) and 2 min for ssp (laser beams polarized parallel to the surface, sum frequency emission and up-conversion polarized perpendicular and infrared parallel to the plane of incidence). Electron microscopy imaging SEM and STEM images were

• VSFG, s vis, p IR) polarization combination. (A) VSFG spectra in H2O. (B) VSFG spectra in D2O. Note the different intensity scales. (C) Model of the proposed conformations of dimanno-AuNPs and PEG AuNPs. PEG AuNPs (left) show little order in the PEG chains. Dimanno-AuNPs (right) show a stretched-out

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

• colloid, preventing aggregation [7]. Charge manipulation can be achieved by applying electric fields or varying laser beam polarization. It can also be used at later stages of the NP formation, ensuring self-assembly and growth into oriented structures. In general, the growth of NPs produced by laser

• femtosecond laser irradiation. As in the case of laser ablation of solid targets, utilization of femtosecond laser beams for laser modification of pre-formed nanomaterials is strongly dependent on the polarization of the laser beam. In [85] copper nanoflakes transformed into nanowires under fs laser

• irradiation with linear polarization during 1–5 min; however, further laser treatment converted the nanowires to NPs. The authors explain the observed changes by the initiation of nanoflakes ablation under laser action, producing atoms, ions, and nanoclusters, which nucleate into seed NPs, deposited on the

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

• ultrasound exposure broke the inversion symmetry of Ni/Fe-LDH, causing positive and negative polarization charges to arise. The migration of created charges in opposite directions under external mechanical force caused an intrinsic electric field. The authors also hypothesized that LDHs, as some 2D layered

• interactions within the interfacial bonds induced internal structural reconstruction, which enhanced local polarization and N2 adsorption. As a result, the cleavage of N≡N bonds was accelerated, and the activation energy of the reaction was reduced. Unfortunately, this study also raises concerns regarding the

• parameters, reduced thickness, cationic flexibility, and heterostructure formation, emerge as recurring factors that enhance charge separation and local polarization. Thus, the idea that LDHs can act not only as passive hosts but also as active piezoelectric components is supported by all mentioned works. At

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

• ], which may make anti-SPP1 autoantibodies a novel serum biomarker for detecting ESCC patients. Wang et al. [100] found that SPP1 can recruit macrophages and activate the CD44/PI3K/AKT signaling axis, which in turn promotes their polarization to the M2 type, creating a microenvironment conducive to tumor

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

• energy range of 30–1500 eV with variable polarization and high photon flux in the low photon energy range [9]. The optics provide a moderately focused beam (~100 µm). The beamline covers an energy resolution typical for soft X-ray beamlines of resolving power values of the order of 5000–10000 over nearly

• fields of, among others, catalysis research, material characterization, and thin film deposition, utilizing dedicated cells. HIPPIE, on the 3 GeV ring, covers a wider photon energy range than SPECIES (250 to 2500 eV), also with variable polarization [10]. It has two branches, each with its own

• reactor to expose samples up to 1 bar gas atmosphere and 900 °C connected to the main UHV system. In addition, a polarization modulation infrared reflection absorption spectroscope (PM-IRRAS) is also available, enabling simultaneous APXPS and IRRAS measurements. The SLE at HIPPIE is designed as a large

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

• special configurations of laser ablation experiments, such as laser ablation in an applied external electrical field [14][15][16], variation of liquid composition [13], laser ablation at increased liquid temperature [17][18], and using different light polarization (linear or circular) [19]. As a result, a

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

• SERS activity compared to AgNPs (seeds). The measurements were performed under identical experimental conditions, including fixed laser polarization, to ensure consistency and the current comparison is intended to be qualitative in nature. The enhancement factor (EF) was calculated using Equation 3 [23

Ferroptosis induction by engineered liposomes for enhanced tumor therapy

• Alireza Ghasempour,
• Mohammad Amin Tokallou,
• Mohammad Reza Naderi Allaf,
• Mohsen Moradi,
• Hamideh Dehghan,
• Mahsa Sedighi,
• Mohammad-Ali Shahbazi and
• Fahimeh Lavi Arab

Beilstein J. Nanotechnol. 2025, 16, 1325–1349, doi:10.3762/bjnano.16.97

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

• Vladimir Pimonov Said Tahir Vincent Jourdain Laboratoire Charles Coulomb, Univ Montpellier, CNRS, Montpellier, France 10.3762/bjnano.16.96 Abstract This study addresses the challenge of analyzing the growth kinetics of carbon nanotubes using in situ homodyne polarization microscopy (HPM) by

• ; 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

• selectivity, particularly kinetic selectivity. To address this, we developed a method based on in situ homodyne polarization microscopy (HPM), which is highly sensitive and can detect changes in optical absorption caused by a single carbon nanotube. The technique allows for imaging tens to hundreds of

Wavelength-dependent correlation of LIPSS periodicity and laser penetration depth in stainless steel

• Nitin Chaudhary,
• Chavan Akash Naik,
• Shilpa Mangalassery,
• Jai Prakash Gautam and
• Sri Ram Gopal Naraharisetty

Beilstein J. Nanotechnol. 2025, 16, 1302–1315, doi:10.3762/bjnano.16.95

• spatial periodicity (Λ) relative to the laser wavelength (λ). Typically in metal surfaces with high absorbance, the range of LSFL periodicity is λ > Λ > λ/2, oriented perpendicular to the incident polarization, and HSFL periodicities are much smaller and in the range of Λ < λ/2, orientated parallel to the

• incident polarization [40][41][42][43][44][45]. A recent review by Jörn Bonse and Stephan Gräf provides a comprehensive classification based on materials and associated theories [46]. Two primary classes of theories – electromagnetic and matter reorganization – have been proposed to explain LIPSS formation

• modulation of the net localized energy distribution on the surface, and this field absorption is manifested as LIPSS on the surface. This process depends on several experimental factors, namely, incident wavelength, polarization, material dielectric, dielectric, fluence of the laser, pulse width, repetition

Better together: biomimetic nanomedicines for high performance tumor therapy

• Imran Shair Mohammad,
• Gizem Kursunluoglu,
• Anup Kumar Patel,
• Hafiz Muhammad Ishaq,
• Cansu Umran Tunc,
• Dilek Kanarya,
• Mubashar Rehman,
• Omer Aydin and
• Yin Lifang

Beilstein J. Nanotechnol. 2025, 16, 1246–1276, doi:10.3762/bjnano.16.92

• used to escape the reticuloendothelial system (RES), target cancer cells and pathogens, and enhance tumor accumulation. Recently, Huang et al. reported macrophage membrane-coated targeted NPs for tumor inhibition and macrophage polarization. They incorporated methyltransferase like 14 (METTL14) and

• RS09 inside the macrophages and then functionalized the surface with DSPE-PEG2000-cRGD. METTL14 significantly inhibits the tumor growth in vitro, downregulates TICAM2, and inhibits the macrophage polarization by the Toll-like receptor 4 pathway. The combinatory NPs induce antitumor M1 macrophage

• polarization, and cRGD modification further enhances tumor accumulation [32]. In another study, Hou et al. employed M1-type macrophages and loaded them with sorafenib (SF) to develop lipid nanoparticles (M1/SLNPs). The M1/SLNPs showed an increase in tumor accumulation and enhanced the SF tumor targeting

Single-layer graphene oxide film grown on α-Al₂O₃(0001) for use as an adsorbent

• Shiro Entani,
• Mitsunori Honda,
• Masaru Takizawa and
• Makoto Kohda

Beilstein J. Nanotechnol. 2025, 16, 1082–1087, doi:10.3762/bjnano.16.79

• (0001). Two sets of Raman spectra from SLG/α-Al2O3(0001) (upper) and SLGO/α-Al2O3(0001) (lower). (a) C 1s core level XPS and (b) polarization dependence of C K-edge NEXAFS spectra of SLG/α-Al2O3(0001) (lower) and SLGO/α-Al2O3(0001) (upper) The incident angles of photon beams from the surface are 90

• ° (red) and 30° (blue), respectively. (a) O K-edge NEXAFS of α-Al2O3(0001) (black) and SLGO/α-Al2O3(0001) (red). (b) and (c) Polarization dependence of O K-edge NEXAFS of SLGO/α-Al2O3(0001) and Cs-adsorbed SLGO/α-Al2O3(0001), respectively. The incident angles of the photon beams from the surface are 90

Piezoelectricity of hexagonal boron nitrides improves bone tissue generation as tested on osteoblasts

• Sevin Adiguzel,
• Nilay Cicek,
• Zehra Cobandede,
• Feray B. Misirlioglu,
• Hulya Yilmaz and
• Mustafa Culha

Beilstein J. Nanotechnol. 2025, 16, 1068–1081, doi:10.3762/bjnano.16.78

• amplitude and PRFM phase images of hBNs. The amplitude image presents the strength of hBNs piezoelectric response, which was recorded as 2 mV. This acquired amplitude response measures the effective piezoelectric coefficient, which can be correlated with the polarization magnitude. The observed PRFM

• applied electric field, the acquired phase signals determine the polarization direction of hBNs [49]. The direction and angle of polarization of piezoelectric hBNs were recorded by phase contrast measurement, and it was found to be 300°. This high value indicates that hBNs gave spontaneous responses as

• polarization to external stimulation. Characterization of BaTiO3 The FTIR spectrum of BaTiO3 is shown in Supporting Information File 1, Figure S4 (a). A characteristic peak of BaTiO3 was observed at 1420 cm−1, corresponding to crystalline Ba–Ti–O [50]. Additionally, slight peaks appeared at 1630 and 3480 cm−1

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

• had a smectic crystal phase that had a tilted chromophore (the part that gives the molecule its color) at 45° from the layer normal. This tilted chromophore caused a macroscopic polarization (a change in the electric field) when a direct current (DC) bias was applied during cooling from a high

• -temperature phase to a smectic crystal phase. By contrast, the other diastereomer exhibited a smectic crystal phase in which the chromophore was parallel to the layer normal and no macroscopic polarization was induced. Bulk photovoltaic effects and polarization-induced electroluminescence were exclusively

• tilted smectic crystal phase, with the addition of fullerene derivatives, was also investigated. The emission was linearly polarized with a dichroic ratio exceeding ten for the polarization-induced electroluminescence observed in the tilted smectic crystal phase. Reversing the polarity of the poling

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

• conventional TTM that describes energy transfer between electrons and the lattice. Although the dynamics of photoexcited hot electrons were expected to uniformly affect the entire specimen within a few picoseconds, the experiment instead observed inhomogeneous and laser-polarization-dependent anisotropic

• plasmons through the wavelength and polarization state of femtosecond laser pulses [82]. Active research in this domain is anticipated to facilitate the precise optical control of material phases. Furthermore, advances in imaging technologies, particularly those enabling ultrafast, three-dimensional, and

Synthesis of biowaste-derived carbon-dot-mediated silver nanoparticles and the evaluation of electrochemical properties for supercapacitor electrodes

• Navya Kumari Tenkayala,
• Chandan Kumar Maity,
• Md Moniruzzaman and
• Subramani Devaraju

Beilstein J. Nanotechnol. 2025, 16, 933–943, doi:10.3762/bjnano.16.71

• energy demand. Therefore, a notable research focus has been given to advancements in renewable energy storage systems. Secondary batteries and supercapacitors are promising alternatives for energy storage applications [1][2]. Through the electrostatic polarization of electrolyte solutions, supercapacitor

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

• structure (NEXAFS) methods are noncontact and nondestructive methods to investigate the chemical state of the elements on the surface and in the bulk of solids. The signals collected over a large surface area provide overall insight into the surface state. Moreover, the polarization-dependence of NEXAFS

• oriented perpendicular to this plane [53]. The difference in the polarization of π- and σ-electrons explains the dependence of NEXAFS spectra of graphitic materials on the angle of incidence of the radiation. Thus, it can be concluded that the orientation of graphitic layers is predominantly vertical

• Russian–German dipole beamline (RGBL dipole) of the Berliner Elektronenspeicherring für Synchrotronstrahlung (BESSY II) operated by the Helmholtz-Zentrum Berlin für Materialien und Energie (Berlin, Germany) [55]. Light polarization at the RGBL dipole is linearly horizontal. The samples were fixed in pairs

Insights into the electronic and atomic structures of cerium oxide-based ultrathin films and nanostructures using high-brilliance light sources

• Paola Luches and
• Federico Boscherini

Beilstein J. Nanotechnol. 2025, 16, 860–871, doi:10.3762/bjnano.16.65

• density of empty states of the investigated sample. In contrast, the extended energy range X-ray absorption fine structure (EXAFS), up to a few hundred electronvolts above the absorption edge, is sensitive to the local atomic structure around the absorbers. A polarization-dependent Ce L3-edge EXAFS study

Facile one-step radio frequency magnetron sputtering of Ni/NiO on stainless steel for an efficient electrode for hydrogen evolution reaction

• Ha Huu Do,
• Khac Binh Nguyen,
• Phuong N. Nguyen and
• Hoai Phuong Pham

Beilstein J. Nanotechnol. 2025, 16, 837–846, doi:10.3762/bjnano.16.63

• mapping of the Ni/NiO/SS-10 sample. (a) Survey XPS spectrum of Ni/NiO/SS-10. High-resolution XPS spectra of (b) Ni 2p3/2 and (c) O 1s. (a) Polarization curves of SS, Ni/NiO/SS-5, Ni/NiO/SS-10, Ni/NiO/SS-15, and Ni/NiO/SS-20 electrodes. (b) Corresponding Tafel slopes of electrodes. (c) Nyquist plots of

• /NiO/SS-20 electrodes at an overpotential of 200 mV. (c) Potential–time response of the Ni/NiO/SS-10 electrode measured over a period of 12 h. Inset: Polarization curves recorded initially and after 2000 CV cycles of the Ni/NiO/SS-10 electrode. (d) Chronoamperometric curve of Ni/NiO/SS-10 electrode

Changes of structural, magnetic and spectroscopic properties of microencapsulated iron sucrose nanoparticles in saline

• Sabina Lewińska,
• Pavlo Aleshkevych,
• Roman Minikayev,
• Anna Bajorek,
• Mateusz Dulski,
• Krystian Prusik,
• Tomasz Wojciechowski and
• Anna Ślawska-Waniewska

Beilstein J. Nanotechnol. 2025, 16, 762–784, doi:10.3762/bjnano.16.59

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

• way for the design of materials with tailored functionalities [1][2][3][4][5][6]. Dielectric properties are fundamental for understanding the behavior and performance of various material systems, as they directly influence charge storage, polarization, and energy dissipation mechanisms. For instance

• variations influence key properties such as charge transport, polarization dynamics, and defect distributions, directly impacting the performance of microelectronic and energy systems [14][15]. Understanding these effects requires correlating nanoscale dielectric properties with structural and morphological

Retrieval of B1 phase from high-pressure B2 phase for CdO nanoparticles by electronic excitations in Cd_xZn_1−xO composite thin films

• Arkaprava Das,
• Marcin Zając and
• Carla Bittencourt

Beilstein J. Nanotechnol. 2025, 16, 551–560, doi:10.3762/bjnano.16.43

• any polarization effects of the incident laser light. The optically active phonon modes at the center of the Brillouin zone have the following point symmetries: In this equation, the A1 and E1 modes correspond to Raman and infrared (IR) active branches, characterized by polar symmetries that further

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

• two parameters ψ and Δ characterize a change in polarization state. ψ denotes the amplitude ratio between p-polarized (parallel to the plane of incidence) and s-polarized (perpendicular to the plane of incidence) light components after interaction with the sample. Δ denotes the phase difference

Size control of nanoparticles synthesized by pulsed laser ablation in liquids using donut-shaped beams

• Abdel Rahman Altakroury,
• Oleksandr Gatsa,
• Farbod Riahi,
• Zongwen Fu,
• Miroslava Flimelová,
• Andrei Samokhvalov,
• Stephan Barcikowski,
• Carlos Doñate-Buendía,
• Alexander V. Bulgakov and
• Bilal Gökce

Beilstein J. Nanotechnol. 2025, 16, 407–417, doi:10.3762/bjnano.16.31

• beams of controlled polarization was performed to produce nanoparticles from metal (gold), oxide (yttrium oxide, Y2O3), and alloy (high-entropy alloy (HEA)) targets. The selected materials are typical representatives of their classes, whose NPs are widely used in applications such as biology and

• was added in front of the S-waveplate to control the polarization state of the donut-shaped pulses between radial and azimuthal. The shapes of the beams were monitored on a temporarily reflected beam branch using a profiler (typical shapes of the Gaussian and donut-shaped beams are shown in Figure 1b

• and Figure 1c, respectively). To monitor the polarization of the donut-shaped beam, an additional Glan–Taylor polarizer was placed in front of the profiler. The spot diameters, 2wo, of the Gaussian beams (where wo is the beam waist) at the sample surface were measured with a silicon target using the