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

• maturation, a very important mechanism when it comes to the instability of NEs. It is related to the difference between the droplet sizes in the formulation, with the smaller droplets having greater chemical potential and, thus, diffusing to the larger ones [26]. Formulations with HLB values of 14 and 15

• a transport exponent value (n) of 0.3, indicating a release mechanism primarily driven by Fickian diffusion [44]. The free terpenes exhibited a value of 0.6, suggesting an anomalous transport mechanism for drug release. This mechanism involves a combination of diffusion and dissolution processes for

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

• good antibacterial activity for wound dressing [28][30]. In order to study the mechanism of BBR release from BBR/PLA and BBR NPs/PLA nanofiber scaffolds, the release data were fitted to several kinetic models, including zero-order, first-order, Higuchi, and Ritger–Peppas models. The regression

• compared to that of other models. In addition, the release exponent (n) of the equation was 0.1703, indicating that the BBR release from the BBR/PLA nanofiber scaffold followed the Fickian diffusion. In this mechanism, the release of BBR was governed by a diffusion process, where the diffusion rate was

• higher than the polymer relaxation [43]. Based on the R2 values shown in Table 1, the release data of the BBR NPs/PLA nanofiber scaffold was simultaneously well described by the Higuchi and Ritger–Peppas models, suggesting that BBR NPs release was mainly controlled by a diffusion mechanism. However, the

Influence of conductive carbon and MnCo₂O₄ on morphological and electrical properties of hydrogels for electrochemical energy conversion

• Sylwia Pawłowska,
• Karolina Cysewska,
• Yasamin Ziai,
• Jakub Karczewski,
• Piotr Jasiński and
• Sebastian Molin

Beilstein J. Nanotechnol. 2024, 15, 57–70, doi:10.3762/bjnano.15.6

• mechanism (two or three electron transfer processes), with a strong influence of two electron transfers. Comparing the value of the Tafel slope of the hydrogel composite containing MCO and cCB particles with the Tafel slope of pure hydrogel (141 mV·dec−1), it is visible that the addition of the catalyst

• (Figure 5a). This is related to the increase of the electrode double-layer capacitance with the increase in the amount of cCB (Figure 5b). This confirms the comparable rate and mechanism of the OER reaction of the Hgel-MCO-cCB electrode. Comparing our Tafel slope with the values obtained for the PPy

Josephson dynamics and Shapiro steps at high transmissions: current bias regime

• Artem V. Galaktionov and
• Andrei D. Zaikin

Beilstein J. Nanotechnol. 2024, 15, 51–56, doi:10.3762/bjnano.15.5

• T → 0 can flow across the junction. The situation becomes entirely different provided one goes beyond the tunneling limit and considers highly transparent superconducting weak links in which case the charge transfer is essentially controlled by the mechanism of multiple Andreev reflection [2]. This

• mechanism causes intrinsic dissipation at subgap energies. Recently, we demonstrated [3] that such intrinsic dissipation has a dominating sub-Ohmic component in the subgap regime. This observation implies, for example, substantial modifications of the I–V curve at bias currents I just slightly exceeding the

Curcumin-loaded nanostructured systems for treatment of leishmaniasis: a review

• Douglas Dourado,
• Thayse Silva Medeiros,
• Éverton do Nascimento Alencar,
• Edijane Matos Sales and
• Fábio Rocha Formiga

Beilstein J. Nanotechnol. 2024, 15, 37–50, doi:10.3762/bjnano.15.4

• Leishmania spp. Although its mechanism of action has not yet been fully elucidated, its leishmanicidal potential may be associated with its antioxidant and anti-inflammatory properties. However, it has limitations that compromise its clinical use. Conversely, nanotechnology has been used as a tool for

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

• mechanism by which the nanoemulsion could reduce the worm burden is its antimicrobial activity, connecting changes in microbiota with the response to parasites. However, the mechanism of action of carvacrol remains unknown [67]. Repositioned drugs Works utilizing compounds repositioned from other diseases

A combined gas-phase dissociative ionization, dissociative electron attachment and deposition study on the potential FEBID precursor [Au(CH₃)₂Cl]₂

• Elif Bilgilisoy,
• Ali Kamali,
• Thomas Xaver Gentner,
• Gerd Ballmann,
• Sjoerd Harder,
• Hans-Peter Steinrück,
• Hubertus Marbach and
• Oddur Ingólfsson

Beilstein J. Nanotechnol. 2023, 14, 1178–1199, doi:10.3762/bjnano.14.98

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

• regulating the expression through a miRNA-mediated mechanism [4]. Furthermore, recent studies have shown that CUR induces apoptosis in human hepatocellular carcinoma cells (Huh-7) by activating p38, leading to FasL-associated apoptosis [5]. However, the clinical application of CUR is restricted by

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

• to improve the insecticidal efficacy because the higher surface area and specificity provide stronger contact of the active substance with the insects [45]. The working mechanism of the nanocomposites may be the effective penetration through pores and microfibrils of the insects’ cuticle [45] and the

Density functional theory study of Au-fcc/Ge and Au-hcp/Ge interfaces

• Olga Sikora,
• Małgorzata Sternik,
• Benedykt R. Jany,
• Franciszek Krok,
• Przemysław Piekarz and
• Andrzej M. Oleś

Beilstein J. Nanotechnol. 2023, 14, 1093–1105, doi:10.3762/bjnano.14.90

• several other metals. It is worth mentioning that also stable hexagonal silver dhcp nanostructures have been synthesized [20][21]. Nanostructures of hcp gold were found after growing Ge nanowires with Au as catalyst [22]. A possible mechanism responsible for the formation of hcp gold has been suggested

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

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

• and CD91 for Hpx, and taken up by phagocytes (e.g., Kupffer cells in liver sinoids), where Hb or heme are subsequently degraded. If this mechanism cannot be bypassed, Hp and Hpx must be fully saturated to achieve and maintain the effect of the HBOCs. Here is an example calculation with commercially

• also in line with previous research. In several other studies, using various other HBOCs, a direct Hb–CD163 interaction was observed [5][27][39]. However, the blockade of CD163 could not completely inhibit the uptake of HbMPs, which suggests the existence of at least one further mechanism for HbMP

• in the uptake of HbMPs. Further research on this topic will be conducted in the future. To be considered as well is a possible mechanism leading to particle uptake by phagocytes based on the particle size. Our own results regarding PMMA-FluoroGreen-COOH particles (microparticles GmbH, Berlin, Germany

A visible-light photodetector based on heterojunctions between CuO nanoparticles and ZnO nanorods

• Doan Nhat Giang,
• Nhat Minh Nguyen,
• Duc Anh Ngo,
• Thanh Trang Tran,
• Le Thai Duy,
• Cong Khanh Tran,
• Thi Thanh Van Tran,
• Phan Phuong Ha La and
• Vinh Quang Dang

Beilstein J. Nanotechnol. 2023, 14, 1018–1027, doi:10.3762/bjnano.14.84

• responsivity, photoconductive gain, detectivity, and sensitivity with maximum values of 1.38 A·W−1, 4.33, 2.58 × 1011 Jones, and 1934.5% at a bias of 2 V, respectively. The sensing mechanism of the p–n heterojunction of CuO/ZnO is also explored. Overall, this study indicates that the heterostructure of CuO

• toxic, extending its applicability in everyday life. Proposed photodetection mechanism Under dark conditions (Figure 7a), highly electronegative oxygen molecules from the surrounding atmosphere adsorb on the surface of ZnO NRs. These molecules capture the free electrons from ZnO NRs and become

• on CuO NPs/ZnO NRs as functions of the wavelength. The scheme shows the mechanism for generating the photodetector current in CuO NPs/ZnO NRs under (a) dark conditions and (b) visible-light exposure. The performance comparison with other ZnO-based photodetectors. Supporting Information Supporting

Exploring internal structures and properties of terpolymer fibers via real-space characterizations

• Michael R. Roenbeck and
• Kenneth E. Strawhecker

Beilstein J. Nanotechnol. 2023, 14, 1004–1017, doi:10.3762/bjnano.14.83

• capabilities of these fibers are significantly diminished once a crack permeates the skin [11][13][16]. This interface appears to be another mechanism that leads to a somewhat brittle failure in Kevlar®, resulting in a distribution in single-fiber tensile strengths. In contrast, the lack of skin–core

Nanoarchitectonics of photothermal materials to enhance the sensitivity of lateral flow assays

• Elangovan Sarathkumar,
• Rajasekharan S. Anjana and
• Ramapurath S. Jayasree

Beilstein J. Nanotechnol. 2023, 14, 988–1003, doi:10.3762/bjnano.14.82

• optimizing the nanoarchitectonics of nanomaterials to achieve superior light-to-heat conversion. We have briefly explained different photothermal nanomaterials, including noble metals, carbon-based materials, polymeric nanomaterials, and semiconductor materials, with their respective mechanism responsible

• , vol. 7, issue 6, © 2014, permission conveyed through Copyright Clearance Center, Inc. This content is not subject to CC BY 4.0.) Non-radiative mechanism in 2D semiconductor (C). (Figure 4B and C was reproduced from [38] (© 2020 Z. Xie et al., published by WILEY-VCH Verlag GmbH & Co. KGaA, distributed

Fragmentation of metal(II) bis(acetylacetonate) complexes induced by slow electrons

• Janina Kopyra and
• Hassan Abdoul-Carime

Beilstein J. Nanotechnol. 2023, 14, 980–987, doi:10.3762/bjnano.14.81

• fragmentation arises from a resonant mechanism known as dissociative electron attachment (DEA) producing exclusively a negative fragment ion and one or more neutral counterparts, as it will be discussed below. The contribution of each of the processes may depend on the nature of the organometallic precursors

• represent a metal (Mn, Co, Ni, Cu, and Zn) and the acetylacetonate ligand, respectively. Previous reports were only dedicated to the mechanism and the energetics for the production of the two predominant species, that is, the parent [ML2]− anion and the ligand [L]− anion [15][16][17][18][19]. In addition to

• TNI decomposition [23]. ML2 compounds usually possess high dipole moment, quadrupole moment, and/or polarizability [15][16][17][18][19], which allow this mechanism to occur. All these processes are involved in the yield functions reported below in Figures 1–6. At first glance, the formation of the

Isolation of cubic Si₃P₄ in the form of nanocrystals

• Polina K. Nikiforova,
• Sergei S. Bubenov,
• Vadim B. Platonov,
• Andrey S. Kumskov,
• Nikolay N. Kononov,
• Tatyana A. Kuznetsova and
• Sergey G. Dorofeev

Beilstein J. Nanotechnol. 2023, 14, 971–979, doi:10.3762/bjnano.14.80

• fabrication; the resulting composition seems to arise from Si and P supersaturation levels [3][4]. The formation of precipitates in supersaturated silicon has also been considered as a possible mechanism involved in the deactivation of dopants [5][6][7]. To date, Si3P4 compounds have not been experimentally

• penetration into Si NPs, in which the process was modeled as diffusion doping, samples consisted primarily of the new compound of cubic Si3P4. This fact revealed that the mechanism of Si3P4 formation may differ. For example, one might suppose that the amorphous Si layer, present in the nanocrystalline

Metal-organic framework-based nanomaterials for CO₂ storage: A review

• Ha Huu Do,
• Iqra Rabani and
• Hai Bang Truong

Beilstein J. Nanotechnol. 2023, 14, 964–970, doi:10.3762/bjnano.14.79

• mechanism of CO2 on MOFs featuring OMSs. Wu et al. revealed that the interactions between the OMSs of Mg-MOF-74 and HKUST-1 and CO2 molecules are primarily of physical nature [24]. This type of adsorption mechanism offers the advantage of low energy requirements in material regeneration. Another significant

• contribution in the field of mechanism studies was made by Valenzano and coworkers [25]. The recorded an adsorption angle of 129° for CO2 adsorption on Mg-MOF-74, which is smaller than the corresponding angles observed for N2 and CO, implying a stronger interaction between Mg-MOF-74 and CO2 (Figure 1). MOFs

Low temperature atomic layer deposition of cobalt using dicobalt hexacarbonyl-1-heptyne as precursor

• Mathias Franz,
• Mahnaz Safian Jouzdani,
• Lysann Kaßner,
• Marcus Daniel,
• Frank Stahr and
• Stefan E. Schulz

Beilstein J. Nanotechnol. 2023, 14, 951–963, doi:10.3762/bjnano.14.78

• deposition mechanism has changed. The thickness trend shows that the deposition seems to be inhibited in the initial phase as t0 rises significantly above 0. The assumed linear relationship has been plotted in Figure 3 for each deposition temperature. The calculated inhibition times are 13.2 min for 100 °C

Prediction of cytotoxicity of heavy metals adsorbed on nano-TiO₂ with periodic table descriptors using machine learning approaches

• Joyita Roy,
• Souvik Pore and
• Kunal Roy

Beilstein J. Nanotechnol. 2023, 14, 939–950, doi:10.3762/bjnano.14.77

• superiority of the RF model to other models. Figure 5 presents the cross-validation statistics based on 20 times fivefold repetitive CV and 1000 times shuffle split CV on R2 and MAE for the developed ML model. General mechanism of toxicity In the process of screening all descriptors from different ML methods

• toxicity through an ionic mechanism followed by the generation of reactive oxygen species (ROS). Another, biomarker for ROS is lipid peroxidation [38] as free radicals cause lipid peroxidation inside the cell membrane. The catalytic properties of the metals are also responsible for an increased toxicity of

• the previous work. Conclusion We have performed cytotoxicity modeling of eight heavy metal compounds adsorbed on nanoscale TiO2 regarding HK-2 cells and explored the features responsible for the toxicity mechanism. Many studies have examined the co-exposure of metal and metalloid mixtures with heavy

Ni, Co, Zn, and Cu metal-organic framework-based nanomaterials for electrochemical reduction of CO₂: A review

• Ha Huu Do and
• Hai Bang Truong

Beilstein J. Nanotechnol. 2023, 14, 904–911, doi:10.3762/bjnano.14.74

• presented. Finally, we present the potential pathways and current problems in progressing MOF-based nanomaterials for CO2 conversion. Review Mechanism of CO2RR The process of CO2 reduction consists of three steps. First, the CO2 molecules are adsorbed on the active sites of catalysts. Second, charge

Two-dimensional molecular networks at the solid/liquid interface and the role of alkyl chains in their building blocks

• Suyi Liu,
• Yasuo Norikane and
• Yoshihiro Kikkawa

Beilstein J. Nanotechnol. 2023, 14, 872–892, doi:10.3762/bjnano.14.72

• accommodated at the center of the hexagons (Figure 7f,g). Thus, the alkyl chain length affected the formation of porous or non-porous structures, whereas the incorporation of guest molecules changed the 2D assemblies, possibly due to the induced fit mechanism. Multicomponent assemblies owing to matching sizes

• (CC15–CC15) and heterogeneous (OC15F–CC15) dimers were clearly ascertained. This identification by STM and DFT calculations enabled the authors to propose a mechanism for a 2D structural diversification of the bicomponent blend. 7.3 Alkyl chains of solvent molecules Co-adsorption of the solvent can

Biomimetics on the micro- and nanoscale – The 25th anniversary of the lotus effect

• Matthias Mail,
• Kerstin Koch,
• Thomas Speck,
• William M. Megill and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2023, 14, 850–856, doi:10.3762/bjnano.14.69

• unexplored [3]. Uncovering this water repellence mechanism led to a revolution in the development of such surfaces, which promise huge potential for inspiration for technical innovations and applications. In 2022, we celebrated the 25th anniversary of this significant botanical publication, which was an

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

• feature that mimics the sensitivity of sound signals of different frequencies in the human ear, based on the hearing mechanism. Extracting MFCC features is useful for modeling heart sound signals. The wavelet feature extraction method uses “db6 wavelet decomposition” to generate seven feature vectors. The

Nanostructured lipid carriers containing benznidazole: physicochemical, biopharmaceutical and cellular in vitro studies

• Giuliana Muraca,
• María Esperanza Ruiz,
• Rocío C. Gambaro,
• Sebastián Scioli-Montoto,
• María Laura Sbaraglini,
• Gisel Padula,
• José Sebastián Cisneros,
• Cecilia Yamil Chain,
• Vera A. Álvarez,
• Cristián Huck-Iriart,
• Guillermo R. Castro,
• María Belén Piñero,
• Matias Ildebrando Marchetto,
• Catalina Alba Soto,
• Germán A. Islan and
• Alan Talevi

Beilstein J. Nanotechnol. 2023, 14, 804–818, doi:10.3762/bjnano.14.66

• geometrical information, and the exponent n is the diffusional or transport exponent, that provides information about the release mechanism. However, it can also be viewed as a generalization for the explanation of two different drug release mechanisms that could coexist [34]. The mechanism that dominates the

• maximal accumulated release above 74% during 24 h. The release profile was adequately fitted to the Korsmeyer–Peppas model with an estimated release exponent of 0.56, suggesting a mixed mechanism of release with a dominant Fickian behavior. In vitro experiments on T. cruzi trypomastigotes and amastigotes