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

• information regarding the toxicity and reactivity of these NPs by monitoring the behaviour of nano-descriptors commonly employed in quantitative structure–activity relationship (QSAR) models and by measuring the water–NP energetic interactions. The extracted information from our simulations complements

• -activity relationship) models. The toxicity and reactivity are expected to be inversely proportional to the NP size but proportional to the temperature, with the former showing a more pronounced effect. Based on our results, the Pt NPs are predicted to be more reactive than the Au NPs. Schematic of the

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

• ]. 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

• increased osteoblast/osteoclast activity, and remodeling is observed by resorption and formation of new bone tissue. Unlike other tissues, scar tissue is not observed in most bone injuries, and healing occurs through the formation of new bone tissue [27][28]. Various materials can be utilized in order to

Identification of structural features of surface modifiers in engineered nanostructured metal oxides regarding cell uptake through ML-based classification

• Indrasis Dasgupta,
• Totan Das,
• Biplab Das and
• Shovanlal Gayen

Beilstein J. Nanotechnol. 2024, 15, 909–924, doi:10.3762/bjnano.15.75

• to the surface of ENMOs to modify their properties and, specifically, the cellular uptake. A lot of computational studies (Table 1) have been reported using nanoscale quantitative structure–activity relationship (nano-QSAR) models (predominantly regression-based) that specifically employ the cellular

• -connectivity fingerprints (ECFPs) or functional-class fingerprints (FCFPs) were also used for the Bayesian analysis. ECFPs are circular fingerprints that capture precise substructural features of molecules, making them suitable for predicting molecular activity and similarity search [37]. They are generated

The effect of age on the attachment ability of stick insects (Phasmatodea)

• Marie Grote,
• Stanislav N. Gorb and
• Thies H. Büscher

Beilstein J. Nanotechnol. 2024, 15, 867–883, doi:10.3762/bjnano.15.72

• comparison of sliding angles and in the measurements over time. Ageing is a gradual process; hence, the decline of attachment abilities can be expected to be gradual as well and to show intraspecific variation [17]. A difference in activity of the animals was also noticeable during the experiments. The young

• ]. Abrasion of attachment pad cuticle can be repaired in insects. If the damage is superficial, epicuticle can be restored by depletion of waxes [18][77], but stronger damage results in sclerotization of the wound due to phenolase activity involved in the wound closure [78]. Such sclerotized scars do not only

• system, the low pressure is kept up by the heart and muscular activity [5][79]. The legs function as a terminal end in the circulatory system and often have accessory hearts to enable hemolymph flow [79]. If age has an effect on a stick insect’s cardiac system, any impairment could additionally decrease

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

• Conectividad Molecular, Avda. Vicent Andrés Estellés 0, 46100 Burjassot, Spain MolDrug AI Systems S.L., Olimpia Arozena Torres 45, 46108 Valencia, Spain 10.3762/bjnano.15.71 Abstract Quantitative structure–activity relationship (QSAR) models are routinely used to predict the properties and biological activity

• statistical nature such as quantitative structure–activity relationships (QSARs) can help to understand the intrinsic features of nanomaterials (NMs) and quantitatively assess their potential risks for human health and the environment [1]. QSARs consist in the construction of mathematical models relating the

• structure of a series of molecules to a biological/physicochemical property or activity, mostly through the use of statistical tools. Once a model has been constructed, it can be used to predict the property or biological effect of new structures quickly and at a very low cost in comparison to experimental

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

•  10 is obtained using the calculated conduction and valence bands positions. The more effective and faster electron transfer kinetics of MoS2/WS2 should account for the enhanced photocatalytic activity under irradiation. The PD process can take place as per the following two mechanisms: Or as follows

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

• under vacuum. AgPd nanoparticles also exhibit activity in the hydrogenation of acetylene and ethylene. Khan et al. [8] found that the addition of Ag to Pd supported on alumina suppresses the general hydrogenation activity, but it also increases the selectivity towards ethylene avoiding acetylene

• poisoning, resulting in an increase in the useful life of the catalyst. Chunling An et al. synthesized AgPd BNPs in aqueous solution with sizes from 4 to 5 nm and demonstrated that they exhibit greater electrocatalytic activity and better long-term performance than silver nanoparticles [9]. Janus

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

• 8 h; however, only 50% of the zinc acetate was dissolved. In addition, antibacterial activity tests were performed with four different bacterial strains relevant to skin surface injuries, leading to the appearance of inhibition zones around the scaffold discs in most cases. We also investigated the

• potential cytotoxicity of the scaffolds on human tumorous and healthy cells. Except for the ones containing zinc acetate salt, the scaffolds are not cytotoxic to either tumor or healthy cells. Keywords: antibacterial activity; electrospinning; polysuccinimide; scaffold; wound dressing; Introduction

• scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), mechanical tests, investigation of salt dissolution from the scaffolds, examination of their antibacterial activity against four different bacterial strains (Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, and

Green synthesis of biomass-derived carbon quantum dots for photocatalytic degradation of methylene blue

• Dalia Chávez-García,
• Mario Guzman,
• Viridiana Sanchez and
• Rubén D. Cadena-Nava

Beilstein J. Nanotechnol. 2024, 15, 755–766, doi:10.3762/bjnano.15.63

• activity of the CQDs in degrading methylene blue was evaluated under both sunlight and incandescent light irradiation, with measurements taken at 20 min intervals over a 2 h period. The CQDs, with sizes ranging from 1–10 nm, demonstrated notable optical properties, including upconversion and down

• synthesized with nitric acid demonstrated superior catalytic activity in MB degradation. Carbon quantum dots typically exhibit luminescence properties, with emission peaks in the blue region between 450 and 500 nm varying based on the solvent used [26][27][28]. In our research, CQDs showed upconversion

• emission when excited at 900 nm and down-conversion emission in the blue region. The photocatalytic activity of CQDs, under sunlight irradiation, in MB degradation has been confirmed by various studies [32][33][34][35][36][37][38]. In this research, samples synthesized with nitric acid exhibited the best

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

• diffraction, Raman spectroscopy, high-resolution transmission electron microscopy, and energy-dispersive X-ray mapping. The TiO2/GQDs-GCE exhibits better electrochemical activity for uric acid and hypoxanthine than GQDs/GCE or TiO2/GCE in differential pulse voltammetry (DPV) measurements. Under optimized

• , cost-effectiveness, and reliability. The use of modified electrodes has shown to improve significantly electrocatalytic activity and electrical conductivity of electrodes. Graphene, with sp2-hybridized carbon atoms in a single layer, has gained much attention because of its unique physicochemical

• electrochemistry, combining GQDs with semiconductors, especially TiO2, has been of interest. For example, GQDs have been successfully introduced into TiO2 [17] to enhance its photocatalytic activity. John Peter et al. reported TiO2/GQDs as anodes for enhancing the short-circuit current in solar cells [18]. The

Gold nanomakura: nanoarchitectonics and their photothermal response in association with carrageenan hydrogels

• Nabojit Das,
• Vikas,
• Akash Kumar,
• Sanjeev Soni and
• Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2024, 15, 678–693, doi:10.3762/bjnano.15.56

• results obtained through optical spectroscopy, aspect ratio calculation, FTIR, and XRD measurements clearly indicated the profound effect of carbon tail length on the morphology of AuNMs. The synthesized nanomakuras, due to their intrinsic properties and optical activity close to the NIR region, have the

Laser synthesis of nanoparticles in organic solvents – products, reactions, and perspectives

• Theo Fromme,
• Sven Reichenberger,
• Katharine M. Tibbetts and
• Stephan Barcikowski

Beilstein J. Nanotechnol. 2024, 15, 638–663, doi:10.3762/bjnano.15.54

• proposed a mechanism of electron transfer from the solvent, which produced acetone as a by-product. Since this transfer is not possible in water and only plasma reactions are available, Ag could not nucleate during LRL in water because of the oxidizing activity of hydroxyl radicals [121]. Overall, LSPC in

• produce graphite structures. The carbon shell is a surface modification and, as such, affects the nanoparticles’ catalyst properties either positively [37][155] or negatively [149]. A low number of graphene layers on the surface of the nanoparticles was found to enhance the catalytic activity during

Exfoliation of titanium nitride using a non-thermal plasma process

• Priscila Jussiane Zambiazi,
• Dolores Ribeiro Ricci Lazar,
• Larissa Otubo,
• Rodrigo Fernando Brambilla de Souza,
• Almir Oliveira Neto and
• Cecilia Chaves Guedes-Silva

Beilstein J. Nanotechnol. 2024, 15, 631–637, doi:10.3762/bjnano.15.53

• ferromagnetic properties and demonstrated high visible-light photocatalytic activity when loaded onto titania nanotube arrays. Titanium nitride (TiN) has gained recognition as an advanced engineering material because of its outstanding chemical and thermal stability, extreme hardness, and electrical

On the additive artificial intelligence-based discovery of nanoparticle neurodegenerative disease drug delivery systems

• Shan He,
• Julen Segura Abarrategi,
• Harbil Bediaga,
• Sonia Arrasate and
• Humberto González-Díaz

Beilstein J. Nanotechnol. 2024, 15, 535–555, doi:10.3762/bjnano.15.47

• N2D3S activity compared to assayed NDDs makes AI/ML analysis challenging. In this work, the IFPTML technique, which combines information fusion (IF), perturbation theory (PT), and machine learning (ML), was employed to address this challenge. Initially, we conducted the fusion into a unified dataset

• , we consider AI/ML to be helpful in the development of N2D3Ss to select the most efficient combination of NP and drug, taking into account properties regarding chemical absorption, distribution, metabolism, excretion, and toxicity (ADMET), and the biological activity regarding NDs [20]. Nevertheless

• ]. Predicting NP safety instead of biological activity has been the objective of other studies as well [37][39]. As a new strategy to tackle this problem, González-Díaz et al. have developed IFPTML, a multioutput, and input-coded multilabel ML method, which stands for information fusion (IF) + perturbation

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

• into targeted nanovesicles, its anti-inflammatory activity may be amplified towards extra-osseous and noncalcified target cells, such as severely irritated vascular endothelium. Here cytotoxicity, mitochondrial membrane potential, ATP content, and membrane fluidity of human endothelial venous cells

• -8 levels by, respectively, 75% and 65% in the mild and by, respectively, 60% and 40% in the pronounced inflammation model. This is the first report showing that the endocytosis of nanoARC-Chol(ALN) by HUVECs magnifies the anti-inflammatory activity of ALN even under conditions of intense irritation

• -1,1-bisphosphonic acid) is a nitrogenous bisphosphonate with high affinity for the bone matrix of hydroxyapatite, chelating capacity of divalent cations, and anti-osteoclast activity, widely used in clinical settings as an anti-resorptive agent in osteoporosis [7][8][9]. ALN is known to reduce

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

• in vacuum, as shown in Figure 5b. As it has been shown previously, the oxygen vacancy defects in nanocomposite materials can act as active centers during photocatalytic oxidation processes by capturing photoinduced electrons, thus contributing to a substantial improvement of photocatalytic activity

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

• at 100 °C for 48 h and dried to obtain GQDs. Photocatalysic studies Kinetic study The photochemical activity of the material was evaluated through the photochemical decomposition of MB solution under simulated sunlight conditions (160 W bulb, Osram, Germany). 0.05 g of the sample material was

• that the present photocatalyst exhibits no significant loss of activity over three cycles. The CF/GQDs-200 photocatalyst used in the cycling tests was characterised by using XRD before and after the cycling experiments. The result indicates that the as-obtained CF/GQDs-200 does not suffer from

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

• absorber [20]. In addition, silver (Ag) nanoparticles were synthesized from cotton fabrics and exhibited strong inhibition activity against some bacteria [21]. Recently, pure active pharmaceutical ingredient (API) composed of nanocrystals was investigated, as opposed to drug nanocarrier platforms [22

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

• nanotechnology, nanomaterials have emerged as a promising solution to improve the limitations of natural antioxidants because of their high stability, easy storage, time effectiveness, and low cost. Among various types of nanomaterials exhibiting antioxidant activity, metal-based nanoantioxidants show excellent

• biomedicine and nanotechnology for developing new types of antioxidants has witnessed a technological breakthrough that resulted in extraordinary progress in the pharmaceutical and biotechnology industries [7][8]. Moreover, many categories of nanomaterials have shown greater antioxidant activity and more

• action, and expand their applications, especially in medicine and healthcare. For example, the question of why nanoparticles with a majority of Ce3+ on the surface have stronger antioxidant activity than those with Ce4+ has recently been answered by Dutta and co-workers [11]. Ce3+ nanoparticles have a

Nanomedicines against Chagas disease: a critical review

• Maria Jose Morilla,
• Kajal Ghosal and
• Eder Lilia Romero

Beilstein J. Nanotechnol. 2024, 15, 333–349, doi:10.3762/bjnano.15.30

• than in the laboratory and showed a comparable in vitro activity to free BNZ [33]. Formulated as oral tablets containing a reduced dose of BNZ/cyclodextrin (50% loading of BNZ (% BNZ/total mass)) and administered to a murine model, BNZ/cyclodextrin did not overcome the efficacy of free BNZ during the

• low tissue distributions in healthy mice [56]. By loading into intravenously administered nanomedicines, the biodistribution of poorly permeable and poorly soluble drugs could be controlled, and their activity against selected targets improved. For BNZ, the avoidance of healthy tissues and the

• increase survival. Nonetheless, the efficacy of these few experiments is uncertain, since their effect on chronic and immunosuppressed models, as well as the potential toxicity, remain unknown. Non-approved drugs-based nanomedicines The in vivo activity of non-approved drugs loaded into lipid and polymeric

Exploring the relationships between physiochemical properties of nanoparticles and cell damage to combat cancer growth using simple periodic table-based descriptors

• Joyita Roy and
• Kunal Roy

Beilstein J. Nanotechnol. 2024, 15, 297–309, doi:10.3762/bjnano.15.27

• oxidative damage through free radical accumulation, which could lead to changes in the survival rate of cancerous cells. The developed QSPR and quantitative structure–activity relationship models also give hints regarding safer design and toxicity assessment of MeOx NMs. Keywords: cancer cell treatment

• this does not contribute to the variations in zeta potential values due to solvents. This work is similar to imputation in quantitative structure–activity relationship (QSAR) modeling, where a missing value is replaced by a predicted value from another model [30]. The training set with 111 MeOx NPs

• enhance the catalytic activity of Fenton/Fenton-like reactions, but can also result in cellular damage [16]. ROS can break down the basic components of the cell, including DNA, proteins, and lipids. ROS can cause double-strand breaks in DNA by converting guanine to 8-oxoguanine. This conversion can lead

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

• cancer therapy agent, is included in the nanocomposite structure, and in vitro drug release studies under different pH conditions (pH 5.5 and 7.4) and photothermal activity at 808 nm NIR laser irradiation are investigated. The comprehensive integration of precise multifunctional nanoparticles design

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

• and water uptake in the presence of Zn [39], or else by accelerating the activity of carbonic anhydrase [2]. Several published information is available on the effect of Zn on photosynthetic pigments of other crops. Nanopriming Triticum aestivum seeds with 10 mg/L of ZnO resulted in a significant

• evidence confirmed that the effect of ZnO NPs on photosynthetic pigments is highly crop-specific and dose-specific. Many researchers have reported increased antioxidant content when treated with ZnO NPs. For example, increased activity levels of catalase, glutathione reductase, superoxide dismutase, and

• Tukey’s HSD test was employed to examine the statistical differences concerning soluble protein content, IAA, and Zn internalization. A two-sample t-test was employed to examine the statistical differences with respect to carbohydrates, plant pigments, and antioxidant activity. The results were expressed

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

• activity of free monoterpenes and nanoemulsions was assessed using third-instar Aedes aegypti larvae. The negative control group was treated with surfactant solutions (Span 80 and Tween 20) at the same concentrations as in the nanoemulsions. Mortality of mosquito larvae was recorded after 24 h of

• exposition according to the WHO protocol [55]. Free cymene exhibited a concentration-dependent larvicidal activity. At 5 mg/L, mortality was 20% ± 4%, rising to 83% ± 2.3% at 25 mg/L and peaking at 98.6% ± 2.3% at 50 mg/L. Surprisingly, the cymene NE displayed a slightly reduced efficacy at lower