New design of operational MEMS bridges for measurements of properties of FEBID-based nanostructures

• Bartosz Pruchnik,
• Krzysztof Kwoka,
• Ewelina Gacka,
• Dominik Badura,
• Piotr Kunicki,
• Andrzej Sierakowski,
• Paweł Janus,
• Tomasz Piasecki and
• Teodor Gotszalk

Beilstein J. Nanotechnol. 2024, 15, 1273–1282, doi:10.3762/bjnano.15.103

• before and after FIB milling at 393 K (100 K above ambient), respectively. (e) Von Mises strain (in MPa) around the formed RoI, showing concentration of strain around edges and near the cantilevers, indicating areas suitable for strain reduction. RoI of an opMEMS (a) before and (b) after FIB alignment

The role of a tantalum interlayer in enhancing the properties of Fe₃O₄ thin films

• Hai Dang Ngo,
• Vo Doan Thanh Truong,
• Van Qui Le,
• Hoai Phuong Pham and
• Thi Kim Hang Pham

Beilstein J. Nanotechnol. 2024, 15, 1253–1259, doi:10.3762/bjnano.15.101

• affect Ms [39][40]. In reports [41][42], APBs in Fe3O4 thin films lead to the reduction of saturation magnetization compared to bulk Fe3O4 (510 emu/cm3) [29]. Therefore, sample 3 has the highest Ms because of the smallest number of APBs among all samples. Using a double buffer layer of MgO/Ta to lower

• buffer layer is nearly 3.5 times larger than that in sample 2, the number of APBs in sample 3 is the smallest, resulting in the reduction in Hc of sample 3 compared to the Hc value of sample 2. Conclusion Fe3O4 films were prepared on different substrates of SiO2/Si(100), MgO(100), and MgO/Ta/SiO2/Si(100

Dual-functionalized architecture enables stable and tumor cell-specific SiO₂NPs in complex biological fluids

• Iris Renata Sousa Ribeiro,
• Raquel Frenedoso da Silva,
• Romênia Ramos Domingues,
• Adriana Franco Paes Leme and
• Mateus Borba Cardoso

Beilstein J. Nanotechnol. 2024, 15, 1238–1252, doi:10.3762/bjnano.15.100

• from each sample were cut out. The preparation of samples for analysis by LC-MS/MS was performed according to previously described protocols [34][35]. Briefly, the protein bands were bleached with a destaining solution and dehydrated in acetonitrile. Reduction and alkylation of disulfide bridges were

• greater intensity for the SiO2NPs-ZW-FO (Figure 1g). This reduction indicates that the functionalization process was successful and that folate remained active and could bind to the receptor. Based on the analytical curve (R2 = 0.9997 and sensitivity = 73800.9, arbitrary fluorescence units per mg·mL–1

• (Supporting Information File 1, Table S1 and Supporting Information File 2). Albumin was the major protein identified in pure DMEM (10% FBS); however, there was a significant reduction in the amount of this protein in the hard corona of SiO2NPs, especially non-functionalized ones (Figure 2j). Although albumin

Enhanced catalytic reduction through in situ synthesized gold nanoparticles embedded in glucosamine/alginate nanocomposites

• Chi-Hien Dang,
• Le-Kim-Thuy Nguyen,
• Minh-Trong Tran,
• Van-Dung Le,
• Nguyen Minh Ty,
• T. Ngoc Han Pham,
• Hieu Vu-Quang,
• Tran Thi Kim Chi,
• Tran Thi Huong Giang,
• Nguyen Thi Thanh Tu and
• Thanh-Danh Nguyen

Beilstein J. Nanotechnol. 2024, 15, 1227–1237, doi:10.3762/bjnano.15.99

• AuNPs exhibited uniform size with an average diameter of 10.0 nm. The nanocomposites facilitated the recyclable reduction of organic dyes, including 2-nitrophenol, 4-nitrophenol, and methyl orange, employing NaBH4 as the reducing agent. Kinetic studies further underscored the potential of this

• nanocomposite as a versatile catalyst with promising applications across various industrial sectors. Keywords: catalysis; gold nanoparticles; organic dyes; organometallic nanocomposites; reduction; Introduction Gold nanoparticles (AuNPs) have garnered significant attention because of their exceptional

• physicochemical properties and diverse potential chemical applications [1][2][3]. The conventional synthesis of AuNPs typically involves the chemical reduction of Au3+ ions using various reducing agents and stabilizers [4][5]. However, many of these chemicals are highly reactive, posing risks to both the

Realizing active targeting in cancer nanomedicine with ultrasmall nanoparticles

• André F. Lima,
• Giselle Z. Justo and
• Alioscka A. Sousa

Beilstein J. Nanotechnol. 2024, 15, 1208–1226, doi:10.3762/bjnano.15.98

• effects also manifest through a reduction in koff while kon remains unaffected. Importantly, a prolonged residence time may prove beneficial when targeting the tumor vasculature, as the targeted usNPs would remain bound to their receptors even as most of the circulating particles are cleared from the body

• for PC3pip and PC3flu tumor-bearing mice treated with targeted AuNCs or PBS, with or without radiation. Significant reduction in tumor growth was observed in the PC3pip model 18 days after treatment with targeted AuNCs plus radiation. The figure was adapted from [129], D. Luo et al., “Targeted Gold

A low-kiloelectronvolt focused ion beam strategy for processing low-thermal-conductance materials with nanoampere currents

• Annalena Wolff,
• Nico Klingner,
• William Thompson,
• Yinghong Zhou,
• Jinying Lin and
• Yin Xiao

Beilstein J. Nanotechnol. 2024, 15, 1197–1207, doi:10.3762/bjnano.15.97

• shorter than the 1 ns cool down time constant for 30 keV ions [17]. The results indicate that, in the case of 5 keV ions, there might be sufficient time for the induced heat to dissipate between ion impacts or to at least allow for a significant reduction in induced heat before a subsequent ion impact. At

• keV). By reducing the ion energy from 30 to 5 keV, the loss to heat can be reduced by a factor of six, while the sputtering speed is only reduced by a factor of two. The reduction in energy allows the operator to use nanoampere beam currents, which addresses the drawback of the previously reported

• approach of unfeasibly long patterning times. The results suggest that an additional reduction in ion beam current and applying blur and reduced overlap, when using low ion energies, can further reduce the induced heat. Using that combination might be required for processing materials exhibiting an even

Quantum-to-classical modeling of monolayer Ge₂Se₂ and its application in photovoltaic devices

• Anup Shrivastava,
• Shivani Saini,
• Dolly Kumari,
• Sanjai Singh and
• Jost Adam

Beilstein J. Nanotechnol. 2024, 15, 1153–1169, doi:10.3762/bjnano.15.94

• of the absorber thickness on almost all parameters. The PCE increases from 27.4% to 28.11%, and the short-circuit current Jsc value reaches up to 28.86 mA·cm−2. We observed that there is a significant reduction in FF and Voc at higher absorber thicknesses, primarily because of the increasing series

Introducing third-generation periodic table descriptors for nano-qRASTR modeling of zebrafish toxicity of metal oxide nanoparticles

• Supratik Kar and
• Siyun Yang

Beilstein J. Nanotechnol. 2024, 15, 1142–1152, doi:10.3762/bjnano.15.93

• . Conversely, MONPs with larger atomic radii and crystal ionic radii tend to exhibit a lower surface area-to-volume ratio, which can reduce their cellular interactions and uptake. This reduction in uptake can lead to less cellular dysfunction and toxicity. Larger atomic radii may result in MONPs that are less

Local work function on graphene nanoribbons

• Daniel Rothhardt,
• Amina Kimouche,
• Tillmann Klamroth and
• Regina Hoffmann-Vogel

Beilstein J. Nanotechnol. 2024, 15, 1125–1131, doi:10.3762/bjnano.15.91

• considerable part of the Au surface in addition to the GNR and to a reduction of the CPD values due to the long range nature of the electrostatic force. Conclusion In summary, we have imaged graphene nanoribbons using KPFM. We confirm the p-type doping of the GNRs on the Au substrate. The measured LCPD values

Recent updates in applications of nanomedicine for the treatment of hepatic fibrosis

• Damai Ria Setyawati,
• Fransiska Christydira Sekaringtyas,
• Riyona Desvy Pratiwi,
• A’liyatur Rosyidah,
• Rohimmahtunnissa Azhar,
• Nunik Gustini,
• Gita Syahputra,
• Idah Rosidah,
• Etik Mardliyati,
• Tarwadi and
• Sjaikhurrizal El Muttaqien

Beilstein J. Nanotechnol. 2024, 15, 1105–1116, doi:10.3762/bjnano.15.89

• played an important role in the enhancement of therapeutic outcomes compared to those of conventional therapy. At the same time, nanoparticle drug delivery systems offer a significant reduction in side effects of treatments by lowering the off-target biodistribution of the active pharmaceutical

• nanoparticle-encapsulated curcumin (NanoCurc™) could ameliorate CCl4-induced hepatic injury and fibrosis through reduction of pro-inflammatory cytokines [54]. The polymer platform of NanoCurc™ consists of N-isopropylacrylamide, vinylpyrrolidone, and acrylic acid and was selected because of its capability to

• dissolve a broad range of poorly water-soluble drugs. As this polymeric platform could deliver substantial amounts of curcumin to the liver, a significant reduction in in vivo CCl4-induced hepatocellular injury could be observed. The toxicity data also shows that NanoCurc™ essentially exhibits no toxicity

Unveiling the potential of alginate-based nanomaterials in sensing technology and smart delivery applications

• Shakhzodjon Uzokboev,
• Khojimukhammad Akhmadbekov,
• Ra’no Nuritdinova,
• Salah M. Tawfik and
• Yong-Ill Lee

Beilstein J. Nanotechnol. 2024, 15, 1077–1104, doi:10.3762/bjnano.15.88

• ]. Conventional drug delivery techniques may be ineffective in many applications. Furthermore, it is difficult to manage the components that are produced in an acidic or basic environments, resulting in a reduction in the therapeutic impact of the medications. In recent years, smart DDSs have emerged as a

• , into the alginate polymer network. This can be achieved through various methods, including reduction reactions, electrochemical deposition, or deposition-precipitation. The resulting hybrid nanomaterials exhibit synergistic properties of both the inorganic nanoparticles and the alginate polymer

Effect of wavelength and liquid on formation of Ag, Au, Ag/Au nanoparticles via picosecond laser ablation and SERS-based detection of DMMP

• Sree Satya Bharati Moram,
• Chandu Byram and
• Venugopal Rao Soma

Beilstein J. Nanotechnol. 2024, 15, 1054–1069, doi:10.3762/bjnano.15.86

• used across various scientific and technological fields due to their distinctive optical, physical, and chemical properties. Over the past few decades, different methods have been developed for NP synthesis, including chemical reduction, electrochemistry, atomic layer deposition, laser ablation

• efficiency and yield of the LASiS process [4][50]. The study reported by Shukri et al. [51] pointed out a size reduction in Au NPs from 19 to 12 nm by decreasing the input laser wavelengths, changing from 1064 to 532 nm in DW. Solati et al. [52] observed a significant increase in the mean size of Ag NPs from

• 532 nm, and 16.5 ± 0.5 nm at 1064 nm, respectively. The size distributions are provided in Supporting Information File 1, Figure S1(d–f). The size of the NPs increases with increasing laser wavelength. It is worth mentioning that a reduction in NP size was noticed more in NPs produced in aqueous NaCl

Interface properties of nanostructured carbon-coated biological implants: an overview

• Mattia Bartoli,
• Francesca Cardano,
• Erik Piatti,
• Stefania Lettieri,
• Andrea Fin and
• Alberto Tagliaferro

Beilstein J. Nanotechnol. 2024, 15, 1041–1053, doi:10.3762/bjnano.15.85

• graphene. rGO is produced through direct reduction of GO using physical or chemical routes [49]. Thus, the carbon-to-oxygen ratio can be increased to values of around 8:1 to 246:1, significantly higher than those of GO [50]. The electrical properties show a remarkable improvement compared with GO, even if

• roughness, inducing macrophage polarization to the pro-inflammatory state without producing a great excess of pro-inflammatory factors. Furthermore, GO-coated implants showed a reduction of the expression of the fibrosis-related protein α-SMA and collagen deposition in the presence of both fibroblasts and

• macrophages. The reduction of fibrotic formations on the implants is of capital relevance for preventing thrombosis [96]. Hassan et al. [97] investigated graphene coatings on a stainless steel implant to minimize the negative effect of metals contained into the alloy (i.e., Cr, Mo, and Ni). The authors used

Bolometric IR photoresponse based on a 3D micro-nano integrated CNT architecture

• Yasameen Al-Mafrachi,
• Sandeep Yadav,
• Sascha Preu,
• Jörg J. Schneider and
• Oktay Yilmazoglu

Beilstein J. Nanotechnol. 2024, 15, 1030–1040, doi:10.3762/bjnano.15.84

• ], increased responsivity, unwavering reliability, ultrafast response time, and a substantial reduction in device size. The introduction of large, two-dimensional (2D) detector arrays has further increased the complexity of the detector optimization. In response to these multifaceted challenges and the quest

• reduction as well as sensitive and versatile thermal detection devices suitable for a wide range of high-tech applications. Fabrication process of the pixel-based CNT microbolometer. (a) AlOx deposition, (b) lithography process and metal contact evaporation, (c) iron catalyst evaporation, and (d) CNT growth

Entry of nanoparticles into cells and tissues: status and challenges

• Kirsten Sandvig,
• Tore Geir Iversen and
• Tore Skotland

Beilstein J. Nanotechnol. 2024, 15, 1017–1029, doi:10.3762/bjnano.15.83

• another breast cancer xenograft model and found a strong reduction in immunosuppressive function of macrophages [94]. An influence of NPs on macrophage recruitment, differentiation, and polarization has also been reported by others [95][96]. Thus, a combined effect on the tumor cells and the tumor

Atomistic insights into the morphological dynamics of gold and platinum nanoparticles: MD simulations in vacuum and aqueous media

• Evangelos Voyiatzis,
• Eugenia Valsami-Jones and
• Antreas Afantitis

Beilstein J. Nanotechnol. 2024, 15, 995–1009, doi:10.3762/bjnano.15.81

• shown in Figure 5 for the Au (Figure 5a) and Pt (Figure 5b) NPs. We observe that an increase in temperature results in a smaller coordination number. The temperature dependence is more pronounced for the NPs with diameters larger than 2 nm. For these NPs, an abrupt reduction of the coordination number

• ) and Pt (Figure 7b) NPs. The mean force becomes greater when the temperature is raised or the NP diameter is increased. For a fixed NP diameter, a temperature reduction results in smaller spatial fluctuations, expanded in size and number of crystal zones, as well as more ordered NP configurations that

Effects of cutting tool geometry on material removal of a gradient nanograined CoCrNi medium entropy alloy

• Yu-Sheng Lu,
• Yu-Xuan Hung,
• Thi-Xuyen Bui and
• Te-Hua Fang

Beilstein J. Nanotechnol. 2024, 15, 925–940, doi:10.3762/bjnano.15.76

• influence decreases, and the internal strain gradually converges within the grain boundaries and in front of the tool. This is because the density of the grain boundaries decreases and is affected by deformation along the grain boundaries. There is also a corresponding reduction in the number of highly

Investigation on drag reduction on rotating blade surfaces with microtextures

• Qinsong Zhu,
• Chen Zhang,
• Fuhang Yu and
• Yan Xu

Beilstein J. Nanotechnol. 2024, 15, 833–853, doi:10.3762/bjnano.15.70

• results. Second, the placement position and geometrical parameters (height, width, and spacing) of microtextures with lower energy loss were determined by our simulation of microtextures on the blade surface, and the drag reduction mechanism was analyzed. Triangular ribs with a height of 0.2 mm, a width

• of 0.3 mm, and a spacing of 0.2 mm exhibited the best drag reduction, reducing the energy loss coefficient and drag by 1.45% and 1.31% for a single blade, respectively. Finally, the blades with the optimal microtexture parameters were tested in the wind tunnel. The experimental results showed that

• the microtexture decreased energy loss by 3.7% for a single blade under 57° angle of attack and 136.24 m/s, which was favorable regarding the drag reduction performance of the impeller with 45 blades. Keywords: blade; drag-reducing microtexture; geometrical parameters; placement position; simulations

Intermixing of MoS₂ and WS₂ photocatalysts toward methylene blue photodegradation

• Maryam Al Qaydi,
• Nitul S. Rajput,
• Michael Lejeune,
• Abdellatif Bouchalkha,
• Mimoun El Marssi,
• Steevy Cordette,
• Chaouki Kasmi and
• Mustapha Jouiad

Beilstein J. Nanotechnol. 2024, 15, 817–829, doi:10.3762/bjnano.15.68

• required to drive photodegradation reaction. Concomitantly, anion groups serve as electron donors, playing a key role in the reduction process [44]. During the reaction, the VB edge potential of the sample is superior to the standard redox potentials of both •OH/OH− and •OH/H2O, suggesting that the holes

Synthesis of silver–palladium Janus nanoparticles using co-sputtering of independent sources: experimental and theorical study

• Maria J. Martínez-Carreón,
• Francisco Solís-Pomar,
• Abel Fundora,
• Claudio D. Gutiérrez-Lazos,
• Sergio Mejía-Rosales,
• Hector N. Fernández-Escamilla,
• Jonathan Guerrero-Sánchez,
• Manuel F. Meléndrez and
• Eduardo Pérez-Tijerina

Beilstein J. Nanotechnol. 2024, 15, 808–816, doi:10.3762/bjnano.15.67

• nanoparticles, by the wet reduction method using palladium and silver hydroxide colloids as precursors, to study hydrogen absorption; the size of these BNPs was 6–7 nm. However, inhomogeneous nanoparticles were obtained because Ag fractions were found on the surface, which were increased by heating the samples

Electrospun polysuccinimide scaffolds containing different salts as potential wound dressing material

• Veronika Pálos,
• Krisztina S. Nagy,
• Rita Pázmány,
• Krisztina Juriga-Tóth,
• Bálint Budavári,
• Judit Domokos,
• Dóra Szabó,
• Ákos Zsembery and
• Angela Jedlovszky-Hajdu

Beilstein J. Nanotechnol. 2024, 15, 781–796, doi:10.3762/bjnano.15.65

• (Supporting Information File 1, Figure S5). In the case of the Sr(NO3)2 salt, the Young’s modulus was maximum at 7.5% (w/w, Table 4). The Zn(O2CCH3)2 salt (12.2 ± 1.2 MPa) caused a major reduction in the Young’s modulus value compared to that of Sr(NO3)2 salt-containing scaffolds or the pure scaffold

• cytotoxicity assays were performed on the MG-63 tumor cell line derived from the cells of a 14-year-old boy with osteosarcoma [73]. According to the ISO 10993-5:2009 standard, there are various levels of cytotoxicity. If there is no significant reduction in cell count compared to that of the negative control

Exploring surface charge dynamics: implications for AFM height measurements in 2D materials

• Mario Navarro-Rodriguez,
• Andres M. Somoza and
• Elisa Palacios-Lidon

Beilstein J. Nanotechnol. 2024, 15, 767–780, doi:10.3762/bjnano.15.64

• mechanism arises from the surface conductivity and assumes significance specially in the context of 2D materials on insulating supports. In such scenarios, the oscillating tip induces in-plane charge currents that in many circumstances constitute the main dissipative contribution to amplitude reduction and

• [30]. This issue can be addressed with Kelvin probe force microscopy (KPFM). Under ambient conditions, the most common mode is amplitude modulation (AM-AFM), which uses the oscillation amplitude reduction as the input for the topography feedback. Its main aspects are summarized in [31]. At large free

• the dissipation. In this mode, the amplitude reduction may be due to (i) the tip–sample interaction (conservative or non-conservative), which shifts the resonance frequency and, therefore, makes the excitation go out of resonance, (ii) non-conservative interactions, which dissipate parts of the

Effect of repeating hydrothermal growth processes and rapid thermal annealing on CuO thin film properties

• Monika Ozga,
• Eunika Zielony,
• Aleksandra Wierzbicka,
• Anna Wolska,
• Marcin Klepka,
• Marek Godlewski,
• Bogdan J. Kowalski and
• Bartłomiej S. Witkowski

Beilstein J. Nanotechnol. 2024, 15, 743–754, doi:10.3762/bjnano.15.62

• properties of these layers and to attain the desired parameters in the final product. Controlled thermal treatment serves various purposes, such as enabling crystal structure relaxation, defect reduction, and enhancement of the films’ crystalline arrangement. Furthermore, it can lead to improved electrical

• cracking. This phenomenon was manifested, for example, during SEM measurements, when the sample was locally heated by an electron beam, as shown in Figure 1. Simultaneously, exposing the samples to thermal processing results in a reduction of the content of carbon atoms. On this basis, it is postulated

• using the Scherrer equation [54][55] with sizes ranging from 8.18 nm for the as-grown samples to 12.50, 12.92, and 12.72 nm for the 1×, 2×, and 3× samples, respectively. The other parameters demonstrate an opposite trend, showing a decrease compared to the as-grown films. Reduction of full width at half

Reduced subthreshold swing in a vertical tunnel FET using a low-work-function live metal strip and a low-k material at the drain

• Kalai Selvi Kanagarajan and
• Dhanalakshmi Krishnan Sadhasivan

Beilstein J. Nanotechnol. 2024, 15, 713–718, doi:10.3762/bjnano.15.59

• minimum subthreshold slope and a good Ion/Ioff ratio. The low-k material at the drain reduces the gate-to-drain capacitance. Both the SiO2 layer and the live metal strip show excellent leakage current reduction to 1.4 × 10−17 A/μm. The design provides a subthreshold swing of 5 mV/decade, which is an

• device is shown in Figure 5 for both the on- and the off-state. Compared to the barrier width in the on-state, the distance between valence band of the source and conduction band of the channel is greater in the off-state (Vgs = Vds = 0). In the on-state, Vgs regulates electron motion. A reduction in

Elastic modulus of β-Ga₂O₃ nanowires measured by resonance and three-point bending techniques

• Annamarija Trausa,
• Sven Oras,
• Sergei Vlassov,
• Mikk Antsov,
• Tauno Tiirats,
• Andreas Kyritsakis,
• Boris Polyakov and
• Edgars Butanovs

Beilstein J. Nanotechnol. 2024, 15, 704–712, doi:10.3762/bjnano.15.58

• the average bond length and thus result in a reduction in the elastic modulus [31][32][33]. For example, Wang et al. [34] showed that ZnO NWs with a higher density of oxygen vacancies, inferred from photoluminescence measurements, exhibited significantly (up to 20%) lower Young’s modulus. Wang et al