Interaction of graphene oxide with tannic acid: computational modeling and toxicity mitigation in C. elegans

• Romana Petry,
• James M. de Almeida,
• Francine Côa,
• Felipe Crasto de Lima,
• Diego Stéfani T. Martinez and
• Adalberto Fazzio

Beilstein J. Nanotechnol. 2024, 15, 1297–1311, doi:10.3762/bjnano.15.105

• biosynthesis protein COQ7 [51][53][54][55]. The co-exposure of GO with antioxidant molecules, such as ʟ-cysteine and ascorbate, can mitigate the oxidative effects of the material and minimize GO’s toxicity [35][53]. Moreover, GO also shows important neuronal effects; for example, it influences protein–protein

• tannic acid on the GO toxicity in a co-exposition system. The survival rates of C. elegans at GO concentrations ranging from 0.0001 to 10 mg·L−1 were analyzed in the presence of 1 and 10 mg·L−1 of TA. Figure 6 shows the survival rates of C. elegans after exposition to only GO and to GO in the presence of

Functional morphology of cleaning devices in the damselfly Ischnura elegans (Odonata, Coenagrionidae)

• Silvana Piersanti,
• Gianandrea Salerno,
• Wencke Krings,
• Stanislav Gorb and
• Manuela Rebora

Beilstein J. Nanotechnol. 2024, 15, 1260–1272, doi:10.3762/bjnano.15.102

• conventional lab freezer (ca. −20 °C) for 10 min. The foretibiae were cut from males and females by a scalpel. The specimens were washed in 70% ethanol and then immersed in glycerine (≥99.5%, Carl Roth GmbH & Co. KG, Karlsruhe, Germany). After fixing the specimens in glycerine between a glass slide and a cover

• slip (Carl Roth GmbH & Co. KG, Karlsruhe, Germany) for ca. 2 h, we visualized them with the CLSM (Zeiss LSM 700, Carl Zeiss Microscopy, Jena, Germany). The CLSM was equipped with four lasers (laser lines: 405, 488, 555, and 639 nm) to excite the sample fluorescence subsequently. Four emission filters

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

• 9.3% ID/g at 4 and 24 h p.i., respectively. The importance of active targeting was demonstrated by co-injecting an excess of a high-affinity peptide agonist, resulting in approximately 50% blocking of tumor uptake. Tumor-bearing mice treated with targeted and radiolabeled C’ dots showed prolonged

• Nanocluster Enhanced Radiotherapy of Prostate Cancer”, Small, with permission from John Wiley and Sons. Copyright © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Germany. This content is not subject to CC BY 4.0. PET images detecting CCR2 in a mouse TNBC model using 64Cu-AuNCs-ECL1i. (A, B) Assessment of

• et al., “Chemokine Receptor 2 Targeted Gold Nanocluster Imaging Triple Negative Breast Cancer with Positron Emission Tomography”, Particle & Particle Systems Characterization, with permission from John Wiley and Sons. Copyright © 2021 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Germany. This content

AI-assisted models to predict chemotherapy drugs modified with C₆₀ fullerene derivatives

• Jonathan-Siu-Loong Robles-Hernández,
• Dora Iliana Medina,
• Katerin Aguirre-Hurtado,
• Marlene Bosquez,
• Roberto Salcedo and
• Alan Miralrio

Beilstein J. Nanotechnol. 2024, 15, 1170–1188, doi:10.3762/bjnano.15.95

• ][17]. This G-protein is targeted because studies show a possible positive effect on inhibiting the metastasis of cervical cancer cells [18]. However, more clinical and preclinical studies on CXCR7 and its co-player CXCR4 are required since alterations have been detected in diseases such as cancer

Photocatalytic methane oxidation over a TiO₂/SiNWs p–n junction catalyst at room temperature

• Qui Thanh Hoai Ta,
• Luan Minh Nguyen,
• Ngoc Hoi Nguyen,
• Phan Khanh Thinh Nguyen and
• Dai Hai Nguyen

Beilstein J. Nanotechnol. 2024, 15, 1132–1141, doi:10.3762/bjnano.15.92

• configuration advantages [34][35][36]. However, the wetness impregnation synthesis of those powder co-catalysts faces the issues of low surface area, low reproducibility, and difficult control of large-scale production. Therefore, the development of novel catalysts with unique morphologies by using precise

Direct electron beam writing of silver using a β-diketonate precursor: first insights

• Katja Höflich,
• Krzysztof Maćkosz,
• Chinmai S. Jureddy,
• Aleksei Tsarapkin and
• Ivo Utke

Beilstein J. Nanotechnol. 2024, 15, 1117–1124, doi:10.3762/bjnano.15.90

• ligands instead of their further dissociation and co-deposition into the deposit. To further investigate the microstructure of the deposit, a thin lamella along the dashed white line in Figure 1a was prepared and studied by TEM. The TEM overview image is depicted in Figure 1c, its alignment and

• in scanning electron microscopes during deposition, a double layer of water is still present on hydrophilic surfaces. This turns water into a natural co-reactant of direct electron beam writing [7] and helps in the formation of neutral volatile reaction products from the ligands, such as CO, CO2, CH4

• ). As this growth rate was only about two times larger than that of the thermal emitter, a precursor-limited growth regime and, thus, enhanced co-dissociation of the ligands is expected. For later TEM investigations, the deposition was carried out directly on a TEM grid. The STEM image in Figure 3 shows

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

• treatment. The enhanced permeability and retention (EPR) effect, first described by Maeda and co-workers in 1986, allows for high accumulation of the drug nanocarriers via the leaky vasculature and the deficient lymphatic system around solid tumors, as illustrated in the right panel of Figure 1 [3][4][5

• hydrophilicity [25]. For instance, the passive liver targeting strategy highly depends on the size of nanocarriers as the endothelial fenestrations of liver sinusoids span approximately 50–200 nm in diameter (Figure 2a). In their study, Hirn and co-workers revealed that 50% of small gold NPs (around 1.4 nm) were

• , resulting in poor bioavailability. Regarding synthetic substances, Kurniawan and co-workers encapsulated the potent inhibitor R406 to inhibit spleen tyrosine kinase in inflammatory macrophages using poly(lactic-co-glycolic acid) (PLGA) NPs (R406-PLGA) [45]. PLGA was used as polymeric platform as it is an

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

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

• a smartphone application to detect DMMP. They detected DMMP at a concentration of 1g/L (≈8 mM) using a Raman excitation of 532 nm. Wang and co-workers [73] developed a novel method using thin water film confinement to enhance Raman detection of weakly interacting nerve agent simulants, such as DMMP

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

• materials In 2008, Lee and co-workers [32] stated that neat graphene was the strongest material ever tested with a tensile strength of 131 GPa and a Young’s modulus close to 1 TPa. The reason for these properties of graphene is the stability of the π-bond network around the hexagonal structures of carbon

• quantum confinement as reported by Bolker and co-workers [77]. Authors reported that the bandgap of NDs is strongly correlated to the NDs’ size, and it increases with decreasing crystallite size. However, the ND properties can be altered by heteroatomic doping and through the introduction of surface

• , suggesting that the ND coating prevented the removal of wear debris from coated implants. The complex relation between NDs and macrophage activity can be further tuned by functionalization with short molecules as reported by Pentecost and co-workers [90], who used small amines to tune the inflammatory

Beyond biomimicry – next generation applications of bioinspired adhesives from microfluidics to composites

• Dan Sameoto

Beilstein J. Nanotechnol. 2024, 15, 965–976, doi:10.3762/bjnano.15.79

• . © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This content is not subject to CC BY 4.0. Non-vacuum jamming based stiffness-tunable prototypes developed for use in space applications. Figure 6a–d were republished from [39] (“Controllable biomimetic adhesion using embedded phase change material

Therapeutic effect of F127-folate@PLGA/CHL/IR780 nanoparticles on folate receptor-expressing cancer cells

• Thi Ngoc Han Pham,
• Phuong-Thao Dang-Luong,
• Hong-Phuc Nguyen,
• Loc Le-Tuan,
• Xuan Thang Cao,
• Thanh-Danh Nguyen,
• Vy Tran Anh and
• Hieu Vu_Quang

Beilstein J. Nanotechnol. 2024, 15, 954–964, doi:10.3762/bjnano.15.78

• therapeutic and diagnostic capabilities, have gained significant interest in drug research because of to their potential advantages. This study reports the development of a novel multifunctional nanoparticle carrier system based on poly(ᴅ,ʟ-lactic-co-glycolic acid) (PLGA) for the targeted delivery of the

• and diagnosis, leveraging the advantages of PLGA, folate targeting, and the integration of therapeutic and imaging agents. Keywords: cancer; chlorambucil; drug carrier; IR780; PLGA nanoparticle; theragnostic; Introduction Poly(ᴅ,ʟ-lactic-co-glycolic acid) (PLGA), a copolymer of poly(lactic acid

• ]. It has been found that PLGA may co-encapsulate a range of hydrophobic and hydrophilic compounds, which, because of the core–shell structures, boosts their therapeutic anti-tumor activity [1][2][3][11][26][27][28][29][30][31][32][33]. In this study, we would want to combine all of the advantages of

Electrospun nanofibers: building blocks for the repair of bone tissue

• Tuğrul Mert Serim,
• Gülin Amasya,
• Tuğba Eren-Böncü,
• Ceyda Tuba Şengel-Türk and
• Ayşe Nurten Özdemir

Beilstein J. Nanotechnol. 2024, 15, 941–953, doi:10.3762/bjnano.15.77

• Co. Ltd.)) [101]. The main polymeric nanofiber products on the market for bone regeneration are ReBOSSIS (Ortho Rebirth, Japan), a PLGA-based biomedical product for filling a synthetic bone cavity, poly-ʟ-lactic acid (PLLA) and collagen scaffolds (The Electrospinning Company, United Kingdom), and PCL

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

• MEA, as shown in Figure 1. FCC phase GNG CoCrNi MEA substrates with dimensions of 3 nm × 30 nm × 10 nm were used for all cases in this study. The polycrystalline samples consist of randomly oriented grains. The MEA substrates contain 25,952 Co atoms, 26,628 Cr, and 26,746 Ni atoms. Hence, the alloy

Facile synthesis of Fe-based metal–organic frameworks from Fe₂O₃ nanoparticles and their application for CO₂/N₂ separation

• Van Nhieu Le,
• Hoai Duc Tran,
• Minh Tien Nguyen,
• Hai Bang Truong,
• Toan Minh Pham and
• Jinsoo Kim

Beilstein J. Nanotechnol. 2024, 15, 897–908, doi:10.3762/bjnano.15.74

• manufacturing cost, environmental friendliness, and biodegradability. Because of the abovementioned advantages, MIL-100(Fe) has gained popularity as a candidate for gas separation of CO/CO2 [9][13], CO/N2 [14][15], CO2/CH4 [16], CH4/C2H6/C3H8 [17], and SF6/N2 [18]. In the early stage, MIL-100(Fe) was produced

Water-assisted purification during electron beam-induced deposition of platinum and gold

• Cristiano Glessi,
• Fabian A. Polman and
• Cornelis W. Hagen

Beilstein J. Nanotechnol. 2024, 15, 884–896, doi:10.3762/bjnano.15.73

• beam-induced deposition (FEBID). It was recently achieved for gold deposits by the co-injection of a water precursor and the gold precursor Au(tfac)Me2. In this work results are reported, using the same approach, on a different gold precursor, Au(acac)Me2, as well as the frequently used platinum

• pure gold structures in a single process step using the co-injection of the precursor Au(tfac)Me2 and water. This inspired the present work, in which we aim for the direct deposition of high-purity Au and Pt nanostructures achieved through the co-injection of water and the precursors Au(acac)Me2 and

• MeCpPtMe3 respectively. Purification of FEBID materials with a reactant gas agent Purification of FEBID products by the use of a reactant gas has been performed either through a one-step procedure, with the co-injection of the FEBID precursor and the reactant gas (purification during deposition), or through

A review on the structural characterization of nanomaterials for nano-QSAR models

• Salvador Moncho,
• Eva Serrano-Candelas,
• Jesús Vicente de Julián-Ortiz and
• Rafael Gozalbes

Beilstein J. Nanotechnol. 2024, 15, 854–866, doi:10.3762/bjnano.15.71

• approaches. Furthermore, when they are developed complying strictly with the rules established by the Organization for Economic Co-operation and Development (OECD) for their scientific validation, QSARs are accepted for regulatory purposes, thus ensuring their applicability at the regulatory level by

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

• Langmuir–Hinshelwood kinetics model, expressed by the following equation: The PD reaction rate constant, k, is the slope of Figure 7a. By plotting −ln(Ct/Co) as a function of t, it was observed that the oxidation of MB using the photocatalyst was well-fitted with the pseudo first-order reaction kinetics

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

Electron-induced ligand loss from iron tetracarbonyl methyl acrylate

• Hlib Lyshchuk,
• Atul Chaudhary,
• Thomas F. M. Luxford,
• Miloš Ranković,
• Jaroslav Kočišek,
• Juraj Fedor,
• Lisa McElwee-White and
• Pamir Nag

Beilstein J. Nanotechnol. 2024, 15, 797–807, doi:10.3762/bjnano.15.66

• and Technology, Technická 5, 16628 Prague, Czech Republic Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States 10.3762/bjnano.15.66 Abstract We probe the separation of ligands from iron tetracarbonyl methyl acrylate (Fe(CO)4(C4H6O2) or Fe(CO)4MA) induced by

• . Interesting differences also appear when this precursor is compared to structurally similar iron pentacarbonyl. The present findings shed light on the recent electron-induced chemistry of Fe(CO)4MA on a surface under ultrahigh vacuum. Keywords: electron collision; focused electron beam-induced deposition

• acrylate, Fe(CO)4(C4H6O2), further denoted as Fe(CO)4MA. The structure of Fe(CO)4MA is shown in Figure 1. This precursor is related to iron pentacarbonyl, Fe(CO)5, with one ligand replaced with an olefinic methyl acrylate ligand. Recently, Fe(CO)4MA has been utilized for electron-induced deposition under

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

• syringe filters (Sarstedt AG & Co. KG, Germany). Both cell types were seeded onto a 96-well plate at a concentration of 5000 cells/cm2. The names of the samples and the treatment of the cells are shown in Table 2. Eight parallel measurements were made for each sample. After one day of incubation, the

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

• , consequently, affect the measured height. To investigate this phenomenon, we conduct measurements on monolayer flakes of co-deposited graphene oxide and reduced graphene oxide. Subsequently, we introduce a general model that elucidates our observations. This approach offers valuable insights into the dynamics

• explain the measurements, suggesting that there may be additional interactions directly related to the 2D nature of these materials affecting the height measurements. To explore this issue, in this work, we conducted a study on single-layer flakes of graphene oxide (GO) and reduced graphene oxide (rGO) co

• equations for the system, including the presence of the tip, which we have subsequently particularized for 2D materials on insulating supports. Experimental Co-deposited samples of GO and rGO were prepared following the methodology outlined in [61]. In summary, ultradiluted (4 × 10−4 wt %) dispersions of GO

Level set simulation of focused ion beam sputtering of a multilayer substrate

• Alexander V. Rumyantsev,
• Nikolai I. Borgardt,
• Roman L. Volkov and
• Yuri A. Chaplygin

Beilstein J. Nanotechnol. 2024, 15, 733–742, doi:10.3762/bjnano.15.61

• cells with the redeposited oxygen and silicon atoms was employed in the following section where the simulation results were compared with the experimental data. The concentration of the oxygen atoms CO in the redeposited material stemming from the sputtering of the SiO2 layer was determined as . For

• -enriched region, and its results are shown in Figure 4a–c using maps for O. The presented color scale allows for estimating the concentration of oxygen atoms CO in the redeposited material, calculated without taking gallium atoms into account. The red color corresponds to the relation between silicon and

Simultaneous electrochemical determination of uric acid and hypoxanthine at a TiO₂/graphene quantum dot-modified electrode

• Vu Ngoc Hoang,
• Dang Thi Ngoc Hoa,
• Nguyen Quang Man,
• Le Vu Truong Son,
• Le Van Thanh Son,
• Vo Thang Nguyen,
• Le Thi Hong Phong,
• Ly Hoang Diem,
• Kieu Chan Ly,
• Ho Sy Thang and
• Dinh Quang Khieu

Beilstein J. Nanotechnol. 2024, 15, 719–732, doi:10.3762/bjnano.15.60

• stability of the (1:4)TiO2/QGDs-GCE (Figure 9d). In order to study the selectivity of the (1:4)TiO2/GQDs-modified electrode, common co-existing substances, namely, NH4Cl, KCl, Na2SO4, NH4NO3, CaCl2, ZnCl2, glucose (GLC), glutamic acid (GLA), urea (URE), ʟ-cysteine (LCY) and xanthine (XTE), have been added

Enhancing higher-order modal response in multifrequency atomic force microscopy with a coupled cantilever system

• Wendong Sun,
• Jianqiang Qian,
• Yingzi Li,
• Yanan Chen,
• Zhipeng Dou,
• Rui Lin,
• Peng Cheng,
• Xiaodong Gao,
• Quan Yuan and
• Yifan Hu

Beilstein J. Nanotechnol. 2024, 15, 694–703, doi:10.3762/bjnano.15.57

• , the piezoelectric transducer (PZT-5H) was driven by a signal generator (DG1022, Rigol Technologies Co., Ltd.) to apply the excitation force to different positions of the cantilever. 2 cm and 5 cm face excitations were applied with a piezoelectric transducer size of 20 × 14 × 0.2 mm and 50 × 14 × 0.2

• mm, respectively. All others excitations were applied with a transducer size of 14 × 2.5 × 0.2 mm with an excitation width of 2.5 mm. The modal response displacement of the free end of the cantilever was measured using a laser Doppler vibrometer (LV-S01, Yuyao Sunny Optical Intelligent Technology Co