Nanotechnological approaches in the treatment of schistosomiasis: an overview

• Lucas Carvalho,
• Michelle Sarcinelli and
• Beatriz Patrício

Beilstein J. Nanotechnol. 2024, 15, 13–25, doi:10.3762/bjnano.15.2

• scavenge free radicals [27]. After that, many authors related a reduction in oxidative stress markers in vivo after metalic nanoparticle administration and/or amelioration in histopathological characteristics after infection, which corroborates the first hypothesis [27][28][29][30][31][32][33][34]. Solid

• mobility, couple separation, and tegument alterations. In vivo, the main criteria used is reducing worm burden, quantity and diameter of granuloma, eggs in feces, and oxidative stress markers (e.g., glutathione, nitrite/nitrate, and malondialdehyde). Generally, articles that do not show effectiveness data

• . The nanoparticles avoided weight gain in infected mice, increased glutathione levels, and reduced the levels of oxidative stress markers. This work showed that selenium nanoparticles were even more effective than PZQ, reducing inflammation signs in jejunal tissue and tissue injury levels similarly to

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

• , we initially fabricated the nanostructures on a 200 µm thick Si substrate with 100 nm thick SiN buffer layers on both sides. The buffer layers were deposited with low-pressure CVD to ensure stress-free films. The fabrication process is shown in Figure 10. First, we made the nanostructure using lift

A multi-resistance wide-range calibration sample for conductive probe atomic force microscopy measurements

• François Piquemal,
• Khaled Kaja,
• Pascal Chrétien,
• José Morán-Meza,
• Frédéric Houzé,
• Christian Ulysse and
• Abdelmounaim Harouri

Beilstein J. Nanotechnol. 2023, 14, 1141–1148, doi:10.3762/bjnano.14.94

• commonly observed in C-AFM because of highly localized electric fields at the tip apex leading to structural damage considerably affecting the measurement reliability. These effects are further amplified during scanning in contact mode due to shear forces and strong mechanical stress imposed on the tip

Curcumin-loaded albumin submicron particles with potential as a cancer therapy: an in vitro study

• Nittiya Suwannasom,
• Netsai Sriaksorn,
• Chutamas Thepmalee,
• Krissana Khoothiam,
• Ausanai Prapan,
• Hans Bäumler and
• Chonthida Thephinlap

Beilstein J. Nanotechnol. 2023, 14, 1127–1140, doi:10.3762/bjnano.14.93

• to the delayed CUR release from CUR-HSA-MPs enabling long-term drug release, in contrast to the immediate availability of free CUR [40][41]. In the case of slow release rate of MPs, the available CUR concentration is reduced, allowing cells to adapt to stress conditions and thereby showing lower

Sulfur nanocomposites with insecticidal effect for the control of Bactericera cockerelli

• Lany S. Araujo-Yépez,
• Juan O. Tigrero-Salas,
• Vicente A. Delgado-Rodríguez,
• Vladimir A. Aguirre-Yela and
• Josué N. Villota-Méndez

Beilstein J. Nanotechnol. 2023, 14, 1106–1115, doi:10.3762/bjnano.14.91

• formulations, and reduce the amount of insecticide required for pest control [22]. Nanoparticles are known for their insecticidal properties; they interact with the cell membranes of the insects, causing the denaturation of organelles and enzymes, oxidative stress, and cell death [23][24]. Essential oils are

Dual-heterodyne Kelvin probe force microscopy

• Benjamin Grévin,
• Fatima Husainy,
• Dmitry Aldakov and
• Cyril Aumaître

Beilstein J. Nanotechnol. 2023, 14, 1068–1084, doi:10.3762/bjnano.14.88

• by the flexibility offered by last-generation digital lock-in amplifiers, which allow generating (and demodulating) phase-coherent combinations of multiple oscillators (i.e., an excitation at ωac = ω1 − ω0 and a demodulation at ω1). Here, it is mandatory to stress a very important point. In all

• and the sample. The additional time-averaged shift due to the SPV is accounted for by the first term in the Fourier series (V0). The harmonic terms (n ≥ 1 in Equation 4) contain all the information about the time dependence of the SPV. To prevent misunderstanding, it is important to stress that the

Spatial mapping of photovoltage and light-induced displacement of on-chip coupled piezo/photodiodes by Kelvin probe force microscopy under modulated illumination

• Zeinab Eftekhari,
• Nasim Rezaei,
• Hidde Stokkel,
• Jian-Yao Zheng,
• Andrea Cerreta,
• Ilka Hermes,
• Minh Nguyen,
• Guus Rijnders and
• Rebecca Saive

Beilstein J. Nanotechnol. 2023, 14, 1059–1067, doi:10.3762/bjnano.14.87

• characterization technique, we cannot fully conclude the reason for the deviation from the expected behavior, the results stress the importance of employing advanced, time-dependent spatial mapping characterization techniques for the development of novel nano/micro-actuators. Conclusion In this study, we

• displacements of the light-driven membrane are in good agreement with the simulation results. Moreover, time-dependent AFM was used to investigate position-dependent and size-dependent displacement of piezoelectric actuators driven by an electrical bias. Deviations from the expected membrane behavior stress the

Recognition mechanisms of hemoglobin particles by monocytes – CD163 may just be one

• Jonathan-Gabriel Nimz,
• Pichayut Rerkshanandana,
• Chiraphat Kloypan,
• Ulrich Kalus,
• Saranya Chaiwaree,
• Axel Pruß,
• Radostina Georgieva,
• Yu Xiong and
• Hans Bäumler

Beilstein J. Nanotechnol. 2023, 14, 1028–1040, doi:10.3762/bjnano.14.85

• during development, namely nitrogen monoxide scavenging and associated hypertensive crises, massive renal damage due to tubular reabsorption of hemoglobin (Hb), decay into dimers [8][9][10][11][12][13], and oxidative stress [14][15]. Various approaches of intra- as well as intermolecular modifications of

Green SPIONs as a novel highly selective treatment for leishmaniasis: an in vitro study against Leishmania amazonensis intracellular amastigotes

• Brunno R. F. Verçoza,
• Robson R. Bernardo,
• Luiz Augusto S. de Oliveira and
• Juliany C. F. Rodrigues

Beilstein J. Nanotechnol. 2023, 14, 893–903, doi:10.3762/bjnano.14.73

• reaction, catalyzing the formation of highly reactive hydroxyl radicals that lead to oxidative stress [28][29]. Thus, one of the possibilities for the observed antiproliferative effects could be the result of an imbalance in iron homeostasis with the consequent induction of oxidative stress and death of

A wearable nanoscale heart sound sensor based on P(VDF-TrFE)/ZnO/GR and its application in cardiac disease detection

• Yi Luo,
• Jian Liu,
• Jiachang Zhang,
• Yu Xiao,
• Ying Wu and
• Zhidong Zhao

Beilstein J. Nanotechnol. 2023, 14, 819–833, doi:10.3762/bjnano.14.67

• . Acoustic-electric conversion performance In order to further validate theoretically the effectiveness of the experiment, we conducted simulations using COMSOL software to analyze the internal voltage distribution and stress distribution of the piezoelectric film. Figure 9a–f illustrates the results of the

• simulations. Specifically, Figure 9a–c shows the simulated voltage distribution within the P(VDF-TrFE)/ZnO/GR piezoelectric film under sound pressures of 65, 75, and 85 dB. Figure 9d–f presents the corresponding stress distribution in the piezoelectric film. It is evident that as the sound pressure increases

• from 65 to 85 dB, the force exerted on the surface of the piezoelectric film also increases. This leads to a corresponding increase in the peak voltage within the film, which rises from 1.76 to 3.29 V. Additionally, the stress distribution within the film exhibits an upward trend, rising from 21.9 to

Carboxylic acids and light interact to affect nanoceria stability and dissolution in acidic aqueous environments

• Matthew L. Hancock,
• Eric A. Grulke and
• Robert A. Yokel

Beilstein J. Nanotechnol. 2023, 14, 762–780, doi:10.3762/bjnano.14.63

• of nanoceria (i.e., cerium oxide in the form of nanoparticles) can store or release oxygen, cycling between Ce3+ and Ce4+; therefore, they can cause or relieve oxidative stress within living systems. Nanoceria dissolution occurs in acidic environments. Nanoceria stabilization is a known problem even

• stress within biological systems [11]. Nanoceria in plant systems Nanoceria acts as colloids in aqueous environments, in the soil near plant root systems, and within bodily fluids. Acetic, citric, lactic, succinic, and tartaric acid secreted from plant roots are known to complex with metals/metal oxides

In situ magnesiothermic reduction synthesis of a Ge@C composite for high-performance lithium-ion batterie anodes

• Ha Tran Huu,
• Ngoc Phi Nguyen,
• Vuong Hoang Ngo,
• Huy Hoang Luc,
• Minh Kha Le,
• Minh Thu Nguyen,
• My Loan Phung Le,
• Hye Rim Kim,
• In Young Kim,
• Sung Jin Kim,
• Van Man Tran and
• Vien Vo

Beilstein J. Nanotechnol. 2023, 14, 751–761, doi:10.3762/bjnano.14.62

• performance of Ge-based anodes, a carbon matrix is the most popular choice to disperse nanoparticles, avoiding their aggregation and reducing the internal stress induced by volume variation, because of its flexible structure and high conductivity [30][31][32]. In our recent study, the combination of Ge

• % (compared to the sixth cycle) after 200 cycles. This is explained by the breakdown of Ge particles during continuous lithiation/delithiation, which causes high structural stress and leads to the loss of electrical contact between active material and the current collector. The Ge@C electrodes, after a short

• stabilizing the electrode by alleviating the stress caused by volume change. Amongst the composites, the electrochemical performance increases in the order of Ge/C-HT180 < Ge/C-SSS750 < Ge/C-iM750. The origin of this improvement is the better chemical contact between Ge and the carbon matrix. The Raman

Control of morphology and crystallinity of CNTs in flame synthesis with one-dimensional reaction zone

• Muhammad Hilmi Ibrahim,
• Norikhwan Hamzah,
• Mohd Zamri Mohd Yusop,
• Ni Luh Wulan Septiani and
• Mohd Fairus Mohd Yasin

Beilstein J. Nanotechnol. 2023, 14, 741–750, doi:10.3762/bjnano.14.61

• -temperature environment, which forms a rough surface covered with nanoparticles. The carbide layer formed on the wire will induce localized stress on the surface due to lattice mismatch and, consequently, a breakup along grain boundaries to yield particles of different sizes and shapes [13]. According to the

Investigations on the optical forces from three mainstream optical resonances in all-dielectric nanostructure arrays

• Guangdong Wang and
• Zhanghua Han

Beilstein J. Nanotechnol. 2023, 14, 674–682, doi:10.3762/bjnano.14.53

• , these resonances by the spheres are beyond the spectrum of our interest. The presence of PS spheres only leads to some spectral shift of the resonances supported by the silicon nanostructure, which have been fully considered. Using the Maxwell stress tensor (MST) technique [17], the generated optical

Transferability of interatomic potentials for silicene

• Marcin Maździarz

Beilstein J. Nanotechnol. 2023, 14, 574–585, doi:10.3762/bjnano.14.48

• -relaxed with the conjugate gradient (CG) algorithm and, then, the elastic constants, Cij, were calculated for them using the stress–strain method with the maximum strain magnitude set to 10−6 [30][31]. In the z direction, a vacuum was set to 20 Å. To measure the performance of the analyzed interatomic

Nanoarchitectonics to entrap living cells in silica-based systems: encapsulations with yolk–shell and sepiolite nanomaterials

• Celia Martín-Morales,
• Jorge Fernández-Méndez,
• Pilar Aranda and
• Eduardo Ruiz-Hitzky

Beilstein J. Nanotechnol. 2023, 14, 522–534, doi:10.3762/bjnano.14.43

• each cell displays a similar size and morphology to cells grown in liquid culture. However, some cyanobacterial cells present a slightly reduced size and a more spherical morphology when compared to their common rod-shaped appearance. Although this change in morphology is correlated with stress

• adaption, none of the cells display osmotic stress signals, preserving a healthy aspect that can be found when cells are cultured in standard growth media under high CO2 levels [17]. In contrast, as displayed in Figure 2B, yeasts encapsulated in the G57-4 silica gel display a completely different

• silica matrix, yeast cells display a completely different morphology from that in common suspension cultures. The observed pseudohyphal growth corresponds to morphological changes that are usually correlated to stress for growing yeast cells [16]. Thus, the pseudohyphal growth could be likely caused by

Overview of mechanism and consequences of endothelial leakiness caused by metal and polymeric nanoparticles

• Magdalena Lasak and
• Karol Ciepluch

Beilstein J. Nanotechnol. 2023, 14, 329–338, doi:10.3762/bjnano.14.28

• extravasation of tumor cells due to NanoEL and promotes metastasis to new sites [23]. Importantly, NPs can induce endothelial leakiness indirectly, activating the apoptotic pathway or inducing the production of ROS. Moreover, the increased concentration of ROS in the cell contributes to oxidative stress, which

• , independent of the receptor. Therefore, to confirm the existence of a new method of controlled blood vessel leakiness (i.e., NanoEL), other indirect effects of NPs must be ruled out. NanoEL was shown to be independent of ROS produced in the cell, oxidative stress, and the apoptotic pathway. The possibility of

Structural, optical, and bioimaging characterization of carbon quantum dots solvothermally synthesized from o-phenylenediamine

• Zoran M. Marković,
• Milica D. Budimir,
• Martin Danko,
• Dušan D. Milivojević,
• Pavel Kubat,
• Danica Z. Zmejkoski,
• Vladimir B. Pavlović,
• Marija M. Mojsin,
• Milena J. Stevanović and
• Biljana M. Todorović Marković

Beilstein J. Nanotechnol. 2023, 14, 165–174, doi:10.3762/bjnano.14.17

• . Photoluminescence of CQDs can be tuned, and quantum dots emit light in the range from blue to red. Some of them have very good prooxidant and antioxidant properties [14]. Under blue light irradiation, CQDs produce reactive oxygen species (ROS), which cause oxidative stress and further bacterial death [17][18][19

Intermodal coupling spectroscopy of mechanical modes in microcantilevers

• Ioan Ignat,
• Bernhard Schuster,
• Jonas Hafner,
• MinHee Kwon,
• Daniel Platz and
• Ulrich Schmid

Beilstein J. Nanotechnol. 2023, 14, 123–132, doi:10.3762/bjnano.14.13

• resonator. As the stress field of one mode stiffens the vibrational motion of another, an energy exchange is established between them. This phenomenon is referred to as intermodal coupling [26]. It allows to replace the optical cavity from optomechanics with a mechanical eigenmode. So far, intermodal

Induced electric conductivity in organic polymers

• Konstantin Y. Arutyunov,
• Anatoli S. Gurski,
• Vladimir V. Artemov,
• Alexander L. Vasiliev,
• Azat R. Yusupov,
• Danfis D. Karamov and
• Alexei N. Lachinov

Beilstein J. Nanotechnol. 2022, 13, 1551–1557, doi:10.3762/bjnano.13.128

• mechanical stress is applied. In this work, the transport properties of thin-film layered lead–PDP–lead structures were experimentally studied in a wide temperature range. At sufficiently high temperatures, the current voltage characteristics are satisfactorily described in terms of the injection model of

• system. Relatively recently it was found that finite electric current can pass also through non-conjugated polymers. In the ground state they are wide-band dielectrics, but can exhibit high electric conductivity under the influence of such external parameters as mechanical stress and/or electric field [1

In search of cytotoxic selectivity on cancer cells with biogenically synthesized Ag/AgCl nanoparticles

• Mitzi J. Ramírez-Hernández,
• Mario Valera-Zaragoza,
• Omar Viñas-Bravo,
• Ariana A. Huerta-Heredia,
• Miguel A. Peña-Rico,
• Erick A. Juarez-Arellano,
• David Paniagua-Vega,
• Eduardo Ramírez-Vargas and
• Saúl Sánchez-Valdes

Beilstein J. Nanotechnol. 2022, 13, 1505–1519, doi:10.3762/bjnano.13.124

• concentrations, however, necrosis (black box) predominates, where the formation of cellular debris and damage to the cell membrane are detected. Depending on the level of stress exerted on the cell, this behavior will trigger cell death [47]. Çìftçì et al. [48] suggested that AgNPs induce apoptosis and necrosis

Hydroxyapatite–bioglass nanocomposites: Structural, mechanical, and biological aspects

• Olga Shikimaka,
• Mihaela Bivol,
• Bogdan A. Sava,
• Marius Dumitru,
• Christu Tardei,
• Beatrice G. Sbarcea,
• Daria Grabco,
• Constantin Pyrtsac,
• Daria Topal,
• Andrian Prisacaru,
• Vitalie Cobzac and
• Viorel Nacu

Beilstein J. Nanotechnol. 2022, 13, 1490–1504, doi:10.3762/bjnano.13.123

• . For composites with plastic-fragile and fragile behavior, the ISE is caused by involving and developing delamination and cracking with increasing load (Figure 6), which leads to the relaxation of stress in the deformation zone and, as a result, to the decrease of hardness. SBF testing and bioactivity

Frequency-dependent nanomechanical profiling for medical diagnosis

• Santiago D. Solares and
• Alexander X. Cartagena-Rivera

Beilstein J. Nanotechnol. 2022, 13, 1483–1489, doi:10.3762/bjnano.13.122

• loss modulus [14][15][16][17]. These quantities are appropriate for characterizing soft viscoelastic materials, such as biological specimens, whose mechanical response depends on the rate of application of stress or strain. Notably, many measurements on complex biological systems are still reported

Bending and punching characteristics of aluminum sheets using the quasi-continuum method

• Man-Ping Chang,
• Shang-Jui Lin and
• Te-Hua Fang

Beilstein J. Nanotechnol. 2022, 13, 1303–1315, doi:10.3762/bjnano.13.108

• -continuum (QC) method. Four variables (i.e., crystal orientation, workpiece thickness, clearance between the punch and the substrate, and the taper angle of punch) are used to explore their effect during the nano-punching process. The shear stress distribution is used to express the punching effect on the

• presents less lattice resistance during the punching process. Besides, the thickness of the workpiece has a significant effect on the punching quality. Workpieces with thickness values of 5 and 10 Å are more suitable for punching, due to stable loading and unloading stress–displacement curves and less

• retaining the efficiency of continuum models. A nickel punch and a single-crystalline Al workpiece were used as the punching materials. Models with different crystal orientations, workpiece thicknesses, clearances, and taper punch angles were established. The results of the stress–displacement curve, shear

Nonlinear features of the superconductor–ferromagnet–superconductor φ₀ Josephson junction in the ferromagnetic resonance region

• Aliasghar Janalizadeh,
• Ilhom R. Rahmonov,
• Sara A. Abdelmoneim,
• Yury M. Shukrinov and
• Mohammad R. Kolahchi

Beilstein J. Nanotechnol. 2022, 13, 1155–1166, doi:10.3762/bjnano.13.97

• more essential role. We note that, in the resonance region for the considered limit of model parameters, the my amplitude is coupled to the value of the superconducting current (see Equation 15). We stress the importance of the performed analysis demonstrating the analytical coupling of time