Stiffness calibration of qPlus sensors at low temperature through thermal noise measurements

• Laurent Nony,
• Sylvain Clair,
• Daniel Uehli,
• Aitziber Herrero,
• Jean-Marc Themlin,
• Andrea Campos,
• Franck Para,
• Alessandro Pioda and
• Christian Loppacher

Beilstein J. Nanotechnol. 2024, 15, 580–602, doi:10.3762/bjnano.15.50

Radiofrequency enhances drug release from responsive nanoflowers for hepatocellular carcinoma therapy

• Yanyan Wen,
• Ningning Song,
• Yueyou Peng,
• Weiwei Wu,
• Qixiong Lin,
• Minjie Cui,
• Rongrong Li,
• Qiufeng Yu,
• Sixue Wu,
• Yongkang Liang,
• Wei Tian and
• Yanfeng Meng

Beilstein J. Nanotechnol. 2024, 15, 569–579, doi:10.3762/bjnano.15.49

• diameters were 156 nm, 177 nm, and 199 nm, respectively (Figure 2e). The average size obtained from TEM was different from the sizes found by dynamic light scattering (DLS). The reason is that the TEM image depicts the size of the sample in the dry state, while the DLS method depicts the size of the

Directed growth of quinacridone chains on the vicinal Ag(35 1 1) surface

• Niklas Humberg,
• Lukas Grönwoldt and
• Moritz Sokolowski

Beilstein J. Nanotechnol. 2024, 15, 556–568, doi:10.3762/bjnano.15.48

• ) can be seen (red circles in Figure 2a), while in the other 50% of all cases, it looks as if the chain grows undistorted across the Ag step (light blue circles). For a closer look, a zoom-in onto chains at Ag step edges with molecular resolution is displayed in the inset. The blue circle highlights a

• which the distance b2 between the chains is minimal [23]. The model of the diffraction pattern in Figure 3b shows the spots of the known α-phase diffraction pattern in black and the new spots in gray. The reciprocal vectors of the α-phase and those of the new orientation E are depicted in red and light

Cholesterol nanoarchaeosomes for alendronate targeted delivery as an anti-endothelial dysfunction agent

• Horacio Emanuel Jerez,
• Yamila Roxana Simioni,
• Kajal Ghosal,
• Maria Jose Morilla and
• Eder Lilia Romero

Beilstein J. Nanotechnol. 2024, 15, 517–534, doi:10.3762/bjnano.15.46

• Bligh and Dyer method [77] by a colorimetric phosphate microassay [75]. Size and ζ potential of nanovesicles were determined by dynamic light scattering and phase analysis light scattering, respectively, using a Zetasizer Nano ZS apparatus (Malvern Instruments Ltd, UK). To prepare RhPE-labeled

• finished, aliquots of culture medium supernatant were mixed with 1 volume of Griess Reactive Solution “A” and 1 volume of Griess Reactive Solution “B” and incubated 15 min at room temperature protected from the light. Absorbance was measured at 520 nm in a Cytation™ 5 instrument. Nitrite concentration in

Aero-ZnS prepared by physical vapor transport on three-dimensional networks of sacrificial ZnO microtetrapods

• Veaceslav Ursaki,
• Tudor Braniste,
• Victor Zalamai,
• Emil Rusu,
• Vladimir Ciobanu,
• Vadim Morari,
• Daniel Podgornii,
• Pier Carlo Ricci,
• Rainer Adelung and
• Ion Tiginyanu

Beilstein J. Nanotechnol. 2024, 15, 490–499, doi:10.3762/bjnano.15.44

• also needed in view of the large specific surface area inherent to the produced aeromaterials and of the important role played by surface states in shifting the edge of the valence band, improving the visible-light photocatalytic properties, as shown by first-principle investigations in some

• selected to focus the light on the sample surface. The system calibration was performed on a monocrystalline Si wafer with the main peak measured at 521 cm−1. A 1200 gr/mm grating with a resolution of 1 cm−1 was utilized. SEM images of ZnS microtetrapods obtained from ZnO microtetrapods after a

Photocatalytic degradation of methylene blue under visible light by cobalt ferrite nanoparticles/graphene quantum dots

• Vo Chau Ngoc Anh,
• Le Thi Thanh Nhi,
• Le Thi Kim Dung,
• Dang Thi Ngoc Hoa,
• Nguyen Truong Son,
• Nguyen Thi Thao Uyen,
• Nguyen Ngoc Uyen Thu,
• Le Van Thanh Son,
• Le Trung Hieu,
• Tran Ngoc Tuyen and
• Dinh Quang Khieu

Beilstein J. Nanotechnol. 2024, 15, 475–489, doi:10.3762/bjnano.15.43

• degradation of methylene blue (MB) under visible light. The catalyst can be recycled with an external magnetic field and displays suitable stability. Also, it was reused in three successive experiments with a loss of efficiency of about 5%. The CF/GQDs are considered as an efficient photocatalyst for MB

• photodegradation were evaluated by using dual liquid chromatography–mass spectrometry (LC/MS-MS) after the MB solution samples were illuminated for 0, 60, 120, and 180 min. The chemical oxygen demand (COD) of MB solution samples was assessed after 0, 30, 60, 90, 120, and 150 min of light exposure. Result and

• white light, and it has a yellow-brown colour, characteristic of GQDs prepared from the natural polymer starch [16]. The solution on the right was exposed to 254 nm UV light, and the colour changed to green. The typical absorption peak at 287 nm in the UV–vis spectrum of the aqueous GQD solution (Figure

Fabrication of nanocrystal forms of ᴅ-cycloserine and their application for transdermal and enteric drug delivery systems

• Hsuan-Ang Tsai,
• Tsai-Miao Shih,
• Theodore Tsai,
• Jhe-Wei Hu,
• Yi-An Lai,
• Jui-Fu Hsiao and
• Guochuan Emil Tsai

Beilstein J. Nanotechnol. 2024, 15, 465–474, doi:10.3762/bjnano.15.42

• other hand, only a few research articles reported DCS formulations for parenteral administration [18][19]. Nanocarriers offer great advantages to many technological fields. For example, polytetrafluoroethylene (PTFE) with silicon carbide nanocrystals can be applied as a photostabilizer or as a UV light

Potential of a deep eutectic solvent in silver nanoparticle fabrication for antibiotic residue detection

• Le Hong Tho,
• Bui Xuan Khuyen,
• Ngoc Xuan Dat Mai and
• Nhu Hoa Thi Tran

Beilstein J. Nanotechnol. 2024, 15, 426–434, doi:10.3762/bjnano.15.38

• -focus light element from Bruker, UK, were used. Raman spectra were collected with a XploRA ONE spectroscope (HORIBA, Japan), with a laser wavelength of 532 nm, 1 mW power, and an accumulation number of 60. Schematic of the Ag NPs-DES synthesis. (A) UV–vis spectrum of the Ag NPs-DES solution. (B) XRD

Classification and application of metal-based nanoantioxidants in medicine and healthcare

• Nguyen Nhat Nam,
• Nguyen Khoi Song Tran,
• Tan Tai Nguyen,
• Nguyen Ngoc Trai,
• Nguyen Phuong Thuy,
• Hoang Dang Khoa Do,
• Nhu Hoa Thi Tran and
• Kieu The Loan Trinh

Beilstein J. Nanotechnol. 2024, 15, 396–415, doi:10.3762/bjnano.15.36

• promising application of chain-breaking antioxidants for scavenging ROS, most chain-breaking antioxidants have unsaturated bonds and strong antioxidant activity, which is greatly affected by pH variations, heat, light, and the amount of metal and oxygen. Moreover, chain-breaking antioxidants showed limited

• treatments. Recently, Wang et al. developed multifunctional Au/Ag nanodots (Au/AgNDs) as “pilot light” for real-time guided surgery (Figure 5) [170]. The authors proved that Au/AgNDs enhanced the deposition of ionizing radiation energy, increased intracellular ROS generation, and significantly improved

Controllable physicochemical properties of WO_x thin films grown under glancing angle

• Rupam Mandal,
• Aparajita Mandal,
• Alapan Dutta,
• Rengasamy Sivakumar,
• Sanjeev Kumar Srivastava and
• Tapobrata Som

Beilstein J. Nanotechnol. 2024, 15, 350–359, doi:10.3762/bjnano.15.31

• electrons under the InLens configuration. The optical characteristics of the films were examined using a UV–Vis–NIR spectrophotometer (Shimadzu-3101PC) equipped with an unpolarised light source (300–1200 nm wavelength range). Results and Discussion Figure 1a–d depicts AFM topographic images of as-deposited

Comparative electron microscopy particle sizing of TiO₂ pigments: sample preparation and measurement

• Ralf Theissmann,
• Christopher Drury,
• Markus Rohe,
• Thomas Koch,
• Jochen Winkler and
• Petr Pikal

Beilstein J. Nanotechnol. 2024, 15, 317–332, doi:10.3762/bjnano.15.29

• presence of undispersed aggregates and agglomerates. The SSA and light scattering properties of the five samples were examined. To allow for a broader correlation of size parameters with SSA and CIELAB coordinates, an additional set of laboratory samples with a wider range of particle sizes was prepared

• and evaluated (see Experimental section). The EM MinFeret and EM ECD values according to measurement method M2 are given in Table 4, together with the SSA, the calculated specific surface area (c-SSA), and the CIELAB L*, a*, and b* coordinates showing the light scattering properties of each sample

• particle size distribution from dynamic light scattering measurements [20] was adapted to the results from the electron microscopy measurements. The SSA of all five samples was calculated from the measured particle size distributions according to three different models, based on MinFeret, ECD, and using

Determining by Raman spectroscopy the average thickness and N-layer-specific surface coverages of MoS₂ thin films with domains much smaller than the laser spot size

• Felipe Wasem Klein,
• Jean-Roch Huntzinger,
• Vincent Astié,
• Damien Voiry,
• Romain Parret,
• Houssine Makhlouf,
• Sandrine Juillaguet,
• Jean-Manuel Decams,
• Sylvie Contreras,
• Périne Landois,
• Ahmed-Azmi Zahab,
• Jean-Louis Sauvajol and
• Matthieu Paillet

Beilstein J. Nanotechnol. 2024, 15, 279–296, doi:10.3762/bjnano.15.26

• of the results. The first parameter is the wavelength of the incident laser light used in the Raman experiments. As it will be detailed in the following, the measurements of the frequencies, linewidths, and intensity of first-order Raman active phonon modes of MoS2 have to be obtained with good

• signal in the wavelength range of photoluminescence emission (around 650 nm). The third parameter to define is the power of the 532 nm light, Pλ, impinging the sample. Much of the Raman information available to evaluate the thickness of MoS2 flakes is based on the following parameters: (i) on precise

• incident laser light used in the experiments, the power of the incident light, and the oxide thickness of the SiO2/Si substrate on which the flakes are deposited, on the quality and accuracy of Raman results. Based on this analysis, an experimental protocol has been defined and systematically applied to

Ultrasensitive and ultrastretchable metal crack strain sensor based on helical polydimethylsiloxane

• Shangbi Chen,
• Dewen Liu,
• Weiwei Chen,
• Huajiang Chen,
• Jiawei Li and
• Jinfang Wang

Beilstein J. Nanotechnol. 2024, 15, 270–278, doi:10.3762/bjnano.15.25

• and a light-emitting diode (LED). When a tensile strain is applied, the light emitted by the LED is modulated by the strain sensor. The LED rapidly switched off when the sensor surpassed the critical strain threshold of the target. The switch-off of the LED could serve as an alarm signal, and the

Vinorelbine-loaded multifunctional magnetic nanoparticles as anticancer drug delivery systems: synthesis, characterization, and in vitro release study

• Zeynep Özcan and
• Afife Binnaz Hazar Yoruç

Beilstein J. Nanotechnol. 2024, 15, 256–269, doi:10.3762/bjnano.15.24

• laser-driven photothermal agent [25]. However, it is challenging to completely eradicate solid tumors using PTT alone because of light scattering and limited absorption in tumor tissues. For this purpose, various modifications have been employed for passive tumor targeting. PEGylation, which involves

• where the synthesized nanostructure was exposed to NIR light, SN38-loaded nanoparticles effectively suppressed tumor growth chemotherapeutically and photothermally [29]. This promising result highlights the potential of the PEGylation of PDA nanoparticles for advanced cancer treatment strategies

Design, fabrication, and characterization of kinetic-inductive force sensors for scanning probe applications

• August K. Roos,
• Ermes Scarano,
• Elisabet K. Arvidsson,
• Erik Holmgren and
• David B. Haviland

Beilstein J. Nanotechnol. 2024, 15, 242–255, doi:10.3762/bjnano.15.23

• verify that kinetic inductive mechano-electric coupling (KIMEC) is a useful, albeit not entirely understood, physical effect. Further investigation of alternative designs will help to shed light on the underlying physical mechanism behind KIMEC. We hope that this study motivates future work in this

Multiscale modelling of biomolecular corona formation on metallic surfaces

• Parinaz Mosaddeghi Amini,
• Ian Rouse,
• Julia Subbotina and
• Vladimir Lobaskin

Beilstein J. Nanotechnol. 2024, 15, 215–229, doi:10.3762/bjnano.15.21

• proteins and lactose adsorption affinities based on their corresponding interaction strength with aluminum surfaces and predicted the content of the naturally forming biomolecular corona. Our comprehensive investigation sheds light on the implications of aluminum in food processing and packaging

Nanocarrier systems loaded with IR780, iron oxide nanoparticles and chlorambucil for cancer theragnostics

• Phuong-Thao Dang-Luong,
• Hong-Phuc Nguyen,
• Loc Le-Tuan,
• Xuan-Thang Cao,
• Vy Tran-Anh and
• Hieu Vu Quang

Beilstein J. Nanotechnol. 2024, 15, 180–189, doi:10.3762/bjnano.15.17

• cells. Hydrodynamic size and zeta potential Dynamic light scattering (DLS) and zeta potential spectra were obtained for three replicates on a nanoPartical Horiba SZ-100 (Japan) with the scattering angle of 90° to determine the size distribution and stability of the nanoparticles. The DLS measurements

• incubation at 37 °C. n = 3. The fluorescence signal of F127-folate@NP/Cou-6, F127-folate@NP/Cou-6, and PVA@NP/Cou-6 in 3T3, HEK, HEPG2, and MCF-7 after background subtraction (n = 3). MTT assays of the nanoparticles incubated with HepG2, MCF7, 3T3, and HEK for 48 h (dark color) and 72 h (light color). Cells

CdSe/ZnS quantum dots as a booster in the active layer of distributed ternary organic photovoltaics

• Gabriela Lewińska,
• Piotr Jeleń,
• Zofia Kucia,
• Maciej Sitarz,
• Łukasz Walczak,
• Bartłomiej Szafraniak,
• Jerzy Sanetra and
• Konstanty W. Marszalek

Beilstein J. Nanotechnol. 2024, 15, 144–156, doi:10.3762/bjnano.15.14

• fluorophores emitting light signifies the occurrence of the quenching process. Spectroscopic ellipsometry Spectroscopic ellipsometry studies were performed to determine changes in optical performance with temperature. A multilayer model with a silicon substrate layer was fitted to the obtained Ψ and Δ values

In situ optical sub-wavelength thickness control of porous anodic aluminum oxide

• Aleksandrs Dutovs,
• Raimonds Popļausks,
• Oskars Putāns,
• Vladislavs Perkanuks,
• Aušrinė Jurkevičiūtė,
• Tomas Tamulevičius,
• Uldis Malinovskis,
• Iryna Olyshevets,
• Donats Erts and
• Juris Prikulis

Beilstein J. Nanotechnol. 2024, 15, 126–133, doi:10.3762/bjnano.15.12

• different wavelengths. The usable wavelength range was limited primarily by the low intensity of the incandescent light source in the violet part of the spectrum and the sensitivity of the detector in the infrared. Other materials (fiber, glass, electrolyte, and coolant) in the optical path can further

• post-production analysis (Figure 4f). The potential extension of the interferometric thickness measurement method to thinner PAAO layers could involve the utilization of a shorter-wavelength light source and UV-compatible optical components. In such a scenario, considerations should be made for the

• presented method to other anodization protocols and film growth in a broader context, an important assumption for using the TM model is that the pore diameters (or other inhomogeneities in general) are much smaller than the wavelength of light and the film can be characterized by an effective medium

Assessing phytotoxicity and tolerance levels of ZnO nanoparticles on Raphanus sativus: implications for widespread adoptions

• Pathirannahalage Sahan Samuditha,
• Nadeesh Madusanka Adassooriya and
• Nazeera Salim

Beilstein J. Nanotechnol. 2024, 15, 115–125, doi:10.3762/bjnano.15.11

• light scattering (DLS), and scanning electron microscopy (SEM). The effect of ZnO NPs (70 nm) on R. sativus grown in coir was evaluated. The application of 1,000 mg/L of ZnO NPs resulted in a significant increase (p < 0.05) in soluble protein content, carbohydrates, chlorophyll a (Chl-a), chlorophyll b

• synthesized ZnO NPs were characterized via several techniques such as powder X-ray diffraction (PXRD), Fourier-transform infrared (FTIR) spectroscopy, solid-UV–vis spectroscopy, dynamic light scattering (DLS), and scanning electron microscopy (SEM). Then the potential phytotoxicity of the synthesized ZnO NPs

• could be linked to the agglomeration of nanoparticles caused by the rapid addition rate of NaOH during the synthesis process, as evidenced by the presence of agglomerated particles visible in the SEM images [33]. Further, the light scattering technique results are biased toward the larger particles in

Development and characterization of potential larvicidal nanoemulsions against Aedes aegypti

• Jonatas L. Duarte,
• Leonardo Delello Di Filippo,
• Anna Eliza Maciel de Faria Mota Oliveira,
• Rafael Miguel Sábio,
• Gabriel Davi Marena,
• Tais Maria Bauab,
• Cristiane Duque,
• Vincent Corbel and
• Marlus Chorilli

Beilstein J. Nanotechnol. 2024, 15, 104–114, doi:10.3762/bjnano.15.10

• avenue for overcoming the limitations associated with poor solubility and stability of monoterpenes. This study sheds light on the potential of the nanoemulsions as effective and environmentally friendly insecticides in the ongoing battle against mosquito-borne diseases. Keywords: colloidal stability

• , and 21 days after preparation. Signs of instability such as creaming, sedimentation, and phase separation were recorded, as well as physical aspects such as color, transparency, and fluidity. Dynamic light scattering analysis The average hydrodynamic diameter and polydispersity index (PdI) of the NEs

• were evaluated over a period of 60 days using dynamic light scattering, and the zeta potential was determined via electrophoretic mobility in a Zetasizer 3000 HSA (Malvern Instruments) device, using a 10 mW HeNe laser operated at 633 nm with a detection angle of incidence of 173° at 25 °C. Data

New application of bimetallic Ag/Pt nanoplates in a colorimetric biosensor for specific detection of E. coli in water

• Azam Bagheri Pebdeni,
• Mohammad N. AL-Baiati and
• Morteza Hosseini

Beilstein J. Nanotechnol. 2024, 15, 95–103, doi:10.3762/bjnano.15.9

• the changes in peroxidase-like activity were measured. According to Figure 3a and Figure 3b, the peroxidase-like activity of NPLs was enhanced after the addition of a particular target to the aptamer-NPL solution. At the same time, the control was light blue. This technique indicated that the aptamer

• H2O2 to validate the phenomenon, and no alterations in color were detected, as shown in Figure 2 (light blue color curve). These findings showed that E. coli lacked peroxidase activity. However, the introduction of bacteria in the catalytic aptasensor can enhance the creation of the blue product. The

• lambda 25 UV–vis spectrometer was employed for UV–vis absorption measurement in the range of 200–800 nm. The morphology and shape of NPLs were studied using a field-emission scanning electron microscope (Supra 400VP, Zeiss, Oberkochen, Germany). Dynamic light scattering experiments were carried out at

Berberine-loaded polylactic acid nanofiber scaffold as a drug delivery system: The relationship between chemical characteristics, drug-release behavior, and antibacterial efficiency

• Le Thi Le,
• Hue Thi Nguyen,
• Liem Thanh Nguyen,
• Huy Quang Tran and
• Thuy Thi Thu Nguyen

Beilstein J. Nanotechnol. 2024, 15, 71–82, doi:10.3762/bjnano.15.7

• was cut into circles with a diameter of 6 mm and sterilized with ultraviolet light for 12 h. Then these cut scaffolds were submerged in the cell culture medium in the 96-well plate and incubated for 120 h at 37 °C in an atmosphere of 5% CO2. The morphology of the cultured cells was monitored with an

Measurements of dichroic bow-tie antenna arrays with integrated cold-electron bolometers using YBCO oscillators

• Leonid S. Revin,
• Dmitry A. Pimanov,
• Alexander V. Chiginev,
• Anton V. Blagodatkin,
• Viktor O. Zbrozhek,
• Andrey V. Samartsev,
• Anastasia N. Orlova,
• Dmitry V. Masterov,
• Alexey E. Parafin,
• Victoria Yu. Safonova,
• Anna V. Gordeeva,
• Andrey L. Pankratov,
• Leonid S. Kuzmin,
• Anatolie S. Sidorenko,
• Silvia Masi and
• Paolo de Bernardis

Beilstein J. Nanotechnol. 2024, 15, 26–36, doi:10.3762/bjnano.15.3

• ) Array [2], Large Scale Polarization Explorer (LSPE) [3], Lite (Light) satellite for the study of B mode polarization and Inflation from cosmic background Radiation Detection (LiteBIRD) [4], Q & U Bolometric Interferometer for Cosmology (QUBIC) [5], Simons Observatory [6], and Ali CMB Polarization

TEM sample preparation of lithographically patterned permalloy nanostructures on silicon nitride membranes

• Joshua Williams,
• Michael I. Faley,
• Joseph Vimal Vas,
• Peng-Han Lu and
• Rafal E. Dunin-Borkowski

Beilstein J. Nanotechnol. 2024, 15, 1–12, doi:10.3762/bjnano.15.1

• structure. The resist was patterned using an electron beam, which offers higher resolution than other sources (e.g., UV light) because of the smaller wavelength of electrons. Since the use of an ultrasonic bath will destroy the free-standing membrane, the undercut must be deliberately made larger to ensure