Green synthesis of silver nanoparticles derived from algae and their larvicidal properties to control Aedes aegypti

• Matheus Alves Siqueira de Assunção,
• Douglas Dourado,
• Daiane Rodrigues dos Santos,
• Gabriel Bezerra Faierstein,
• Mara Elga Medeiros Braga,
• Severino Alves Junior,
• Rosângela Maria Rodrigues Barbosa,
• Herminio José Cipriano de Sousa and
• Fábio Rocha Formiga

Beilstein J. Nanotechnol. 2024, 15, 1566–1575, doi:10.3762/bjnano.15.123

• ethanol, concentrated in a rotary vacuum evaporator, and finally stored at refrigerator temperature. A hydroalcoholic extract was produced by adding 1 mL of S. natans extract to 99 mL of purified water and 0.5 mL of Triton®. This extract was treated with AgNO3 (100 mM; 99:1) and conditioned at room

• . lactuca extract [56]. Initially, 10 g of the extract powder was extracted using a Soxhlet extractor (ethanol, 78 °C for 8 h) and concentrated in a rotary vacuum evaporator (40 °C). 100 mL of the extract was treated with AgNO3 solution (1 mM), showing the formation of NPs by the yellowish color. The

Electrochemical nanostructured CuBTC/FeBTC MOF composite sensor for enrofloxacin detection

• Thi Kim Ngan Nguyen,
• Tien Dat Doan,
• Huy Hieu Luu,
• Hoang Anh Nguyen,
• Thi Thu Ha Vu,
• Quang Hai Tran,
• Ha Tran Nguyen,
• Thanh Binh Dang,
• Thi Hai Yen Pham and
• Mai Ha Hoang

Beilstein J. Nanotechnol. 2024, 15, 1522–1535, doi:10.3762/bjnano.15.120

• . The mixture was heated at 150 °C for 12 h and stirred continuously to facilitate the MOF formation process. Finally, the synthesized powder was separated from the solution using a centrifuge at 6000 rpm, washed several times with DMF and ethanol, and dried to obtain CuBTC and FeBTC MOFs. Preparation

A biomimetic approach towards a universal slippery liquid infused surface coating

• Ryan A. Faase,
• Madeleine H. Hummel,
• AnneMarie V. Hasbrook,
• Andrew P. Carpenter and
• Joe E. Baio

Beilstein J. Nanotechnol. 2024, 15, 1376–1389, doi:10.3762/bjnano.15.111

• a 1:1 mixture of ethanol and acetone for 30 min. Si substrates were fabricated via a diamond-tipped blade in a Disco wafer saw (Disco, Tokyo, Japan) from a silicon wafer cut into 1 × 1 cm2 substrates. These Si substrates were left overnight to soak in DI water and then sonicated in 20 min intervals

• with dichloromethane, acetone, and ethanol. 316 SS was purchased from McMaster-Carr (Elmhurst, IL) and ground up to grit 3000 with SiC emery paper and cut by hand into 1 × 1 cm2 chips. The cut SS substrates were rinsed in DI water and ethanol followed by sonication in a 1:1 mixture of chloroform and

• 2.5% glutaraldehyde in 0.1 M sodium cacodylate buffer overnight. Samples were then rinsed twice in 0.1 M cacodylate buffer for 15 min each. Samples were dehydrated in a graded series of ethanol (10%, 30%, 50%, 70%, 90%, 95%, and 100%) for 10–15 min each, followed by critical point drying (Electron

Mn-doped ZnO nanopowders prepared by sol–gel and microwave-assisted sol–gel methods and their photocatalytic properties

• Cristina Maria Vlăduț,
• Crina Anastasescu,
• Silviu Preda,
• Oana Catalina Mocioiu,
• Simona Petrescu,
• Jeanina Pandele-Cusu,
• Dana Culita,
• Veronica Bratan,
• Ioan Balint and
• Maria Zaharescu

Beilstein J. Nanotechnol. 2024, 15, 1283–1296, doi:10.3762/bjnano.15.104

• solutions comprising zinc acetate dihydrate, anhydrous manganese acetate, absolute ethanol, and triethanolamine. This was followed by gelation and subsequent drying and thermal treatment steps to yield Mn-doped ZnO nanopowders (see Experimental section). White-pink powders were obtained using both SG and MW

• purification and pollutant remediation. Experimental Synthesis The starting materials (all reagent grade) for obtaining precursor solutions are zinc acetate dehydrate (Zn(CH3COO)2·2H2O), anhydrous manganese acetate (Mn(CH3COO)2), absolute ethanol (C2H5OH), and triethanolamine (C6H15NO3, TEA). The precursor

• solutions 0.1 M of (0.098% Zn2+ + 0.002% Mn2+) were stirred in absolute ethanol at 50 °C for 15 min. Then, triethanolamine in a molar ratio of ZnAc/TEA = 5:1 was slowly added drop wise. The resulted solution was homogenized at 50 °C for 2 h in the sol–gel method without microwaves or exposed to microwaves

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

• the same buffer, dehydrated by using ascending ethanol concentrations, and finally embedded in an Epon–Araldite resin mixture (Sigma-Aldrich). Afterwards, semithin sections of the foretibial grooming structures were cut with a diamond knife using a Leica EM UC6 ultramicrotome, collected on glass

• Foretibiae were dissected from anaesthetised specimens (ten males and ten females), fixed for 12 h in 2.5% glutaraldehyde in cacodylate buffer (Electron Microscopy Sciences) at pH 7.2, repeatedly rinsed in the same buffer and dehydrated using ascending ethanol gradients (20%, 50%, 70%, 80%, 95%, and 100

• 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

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

• -aminopropyl)triethoxysilane (99%) were purchased from Fisher Scientific. Ethanol (absolute) was purchased from Merck. All reagents and chemicals were used as received without further purification. Water used in the described procedures was obtained from a water purification system (Purelab from ELGA

• of 50:1 (dye: APTES) in absolute ethanol under nitrogen. The resulting solution was continuously stirred for 24 h. The conjugate was then hydrolyzed in a basic ethanolic solution with TEOS and catalyzed by ammonia. In summary, the dye precursor (0.1 mL) was added to ethanol (120.0 mL), TEOS (2.0 mL

• ), and ammonia solution (6.1 mL), and the resulting mixture was stirred for 3 h. Afterward, the conjugate and TEOS were added at the same concentrations as described above, and the reaction was stirred overnight. The NPs were centrifuged (10000 rpm, 15 min), followed by a single wash with ethanol and

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

• reaction solution, cleaned with ethanol, and then washed multiple times with distilled water before being used again. Results and Discussion In situ synthesis of AuNPs@Glu/Alg AuNPs are incorporated into a nanocomposite composed of GluN/Alg following the process depicted in Figure 1. Initially, the blank

Synthesis, characterization and anticancer effect of doxorubicin-loaded dual stimuli-responsive smart nanopolymers

• Ömür Acet,
• Pavel Kirsanov,
• Burcu Önal Acet,
• Inessa Halets-Bui,
• Dzmitry Shcharbin,
• Şeyda Ceylan Cömert and
• Mehmet Odabaşı

Beilstein J. Nanotechnol. 2024, 15, 1189–1196, doi:10.3762/bjnano.15.96

• 0.230 g NaHSO3 (solution D) were added to the medium, and polymerization was initiated. After about 10 h of polymerization, the surfactants and unreacted monomers were washed out with the help of an ethanol–water mixture, and the mixture was centrifuged at 25,000 rpm (Beckman Coulter, Allegra 64R

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

• . Experimental Chemicals and materials Commercial p-type Si 3-inch wafers (⟨100⟩ orientation, boron-doped, resistivity = 0.01–1 Ω·cm) were purchased from Silicon Mitus Corporation, South Korea. Silver nitrate (AgNO3, 0.1 M), hydrofluoric acid HF (50 wt %), nitric acid (HNO3, 63%), acetone, and ethanol were

• provided from Sigma-Aldrich. Deionized (DI) water was used for cleaning steps. Si NWs and TiO2/Si NWs preparation First, a small piece (1 × 2 cm2) was cut from a commercial p-type Si wafer and washed several times using DI water, ethanol, and acetone in a sonication bath. Etching solution containing AgNO3

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

• precursors were cleaned after each use. The cleaning involved mechanical wiping using acetone-wetted tissues, followed by a sequence of sonification in acetone and ethanol, and dry-blowing with nitrogen. Depositions were carried out on silicon with native oxide. The silicon substrates were cleaned using a

• sequence of sonification in acetone, ethanol, and rinsed water, and dry-blowing with nitrogen. In our deposition experiments, faint deposits were visible starting at a GIS temperature of 50 °C for spots of 5 min dwell time, turning into clearly visible deposits starting from about 60 °C. From 80 °C onwards

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

• and cut into 1 cm × 1 cm pieces. The targets were thoroughly cleaned in an ultrasonic bath using ethanol, acetone, and DW for 10 min. After washing, the targets were fixed at the bottom of the glass beaker filled with 5 mL of DW and aqueous NaCl solution (1 mM). The setup was mounted on the motorized

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

• , ethanol, formic acid, and tetrahydrofuran. Depending on the polymer type or the hybrid polymer composition, these organic solvents can be used alone or applied as mixtures in order to obtain suitable solution properties [67]. Surface tension The surface tension of the polymer liquid is important for the

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

• (H3BTC, 95%) were supplied from Sigma-Aldrich. Anhydrous ethanol (EtOH, 99.5%) was acquired from Daejung Chemicals (Korea). Deionized (DI) water was generated using the Aqua Max ultra 360 system from Young-Lin (Korea). No further purification was performed on the chemicals before use. Preparation of M

• (ethanol and water) inside the pore system were released at low temperature around 100 °C. Subsequently, the ligands (water and/or –OH ligands) connected to Fe sites of the iron oxo-clusters were removed, leaving unsaturated metal sites inside the framework. Finally, a significant weight loss (approx. 41.8

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

• projections. 8 Scanning Electron Microscopy (SEM) For inspection of the tarsal morphology of different age groups, samples were chosen after CLSM to compare regions of interest, such as altered autofluorescence or damage. Selected tarsi were transferred from glycerin into 50% ethanol via a gradual series of

• glycerin (descending) and ethanol (ascending) mixtures. Afterwards, samples were dehydrated in an ascending ethanol series and dried using a Leica EM CPD300 (Leica, Wetzlar, Germany) critical point drier. The tarsi were mounted on SEM stubs and sputter-coated with 10 nm gold–palladium in a Leica Bal-TEC

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

• SiO2/Si substrates as detailed elsewhere [27]. The fabricated samples were exfoliated in a mixed solution composed of 10 mL of ethanol, 10 mL acetone, and 10 mL of deionized water under sonication for 30 min as shown in Figure 12. Five to ten substrates loaded with the samples were used to prepare 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

• ethanol and MQ water. Subsequently, the substrate was exposed to UV/ozone for 15 min to eliminate organic contaminants and promote the hydrophilicity of the SiO2 surface. GO (Graphenea), was employed without further treatment, while rGO was obtained through chemical reduction using hydrazine hydrate (50

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

• the stability of the synthesized nanomakuras, different dispersion media were used. The relevant media for biological applications were used for the stability assessment of the nanoparticles. Figure 2a–c shows colloidal stability of AuNMs in ethanol (70%), NaCl (0.9%), and PBS (1X), respectively. The

• drop cast in a KCl solution (1 M) using a 2.5 mL syringe. This resulted in the formation of bright blue coloured spherical k-CG hydrogel beads incorporated with gold nanoparticles. The beads were further rinsed with DD water, subsequently washed with 70% ethanol, and finally dried in a hot air oven for

• DTAB-AuNM, respectively, over a wavelength range 300–900 nm. Stability of AuNMs (CTAB-AuNM, MTAB-AuNM, and DTAB AuNM) in different media at the ratio (NPs:media) 3:1 where (a), (b), and (c) represent the stability of AuNMs in ethanol (70%), NaCl (0.9%), and 1X phosphate buffer saline (PBS). (a) k-CG

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

• an accumulation of anions in the Helmholtz layer indicated by zeta potential measurements. Scaramuzza et al., in contrast, investigated non-ionic additives and their influence on structure and composition during the ablation of metastable AuFe alloys [20]. They used ethanol and water as solvents and

• added different additives. In the case of gaseous additives (nitrogen, carbon dioxide, and argon), they saturated the solution by bubbling. Further additives were 0.3 vol % hydrogen peroxide and 0.2 vol % water (for ethanol only). Depending on the chosen additive, they found a different degree of

• oxidation of the alloy nanoparticles. The highest oxidation was found for the mixture of water and hydrogen peroxide, yielding AuFe nanoparticles with an oxide shell; hence, the authors declared the mixture as highly oxidizing. In contrast, ethanol and hydrogen peroxide brought forth AuFe nanoparticles

Comparative analysis of the ultrastructure and adhesive secretion pathways of different smooth attachment pads of the stick insect Medauroidea extradentata (Phasmatodea)

• Julian Thomas,
• Stanislav N. Gorb and
• Thies H. Büscher

Beilstein J. Nanotechnol. 2024, 15, 612–630, doi:10.3762/bjnano.15.52

• tarsomeres were fixed in 2.5% glutaraldehyde in (pH 7.4) phosphate-buffered saline (PBS) for 24 h, washed two times in PBS for 30 min each, fixed in 1% aqueous OsO4 for 1 h, and washed two times in double-distilled water, for 30 min each. After fixation, the samples were dehydrated using an ascending ethanol

• PBS for 30 min and two times with double-distilled water for 30 min each. Afterwards, the samples were dehydrated in an ascending ethanol series. Each step was performed on ice (4 °C) and on a shaker. Afterwards, the samples were critical point dried (Leica EM CPD300, Leica, Wetzlar, Germany). Then

Radiofrequency enhances drug release from responsive nanoflowers for hepatocellular carcinoma therapy

• Yanyan Wen,
• Ningning Song,
• Yueyou Peng,
• Weiwei Wu,
• Qixiong Lin,
• Minjie Cui,
• Rongrong Li,
• Qiufeng Yu,
• Sixue Wu,
• Yongkang Liang,
• Wei Tian and
• Yanfeng Meng

Beilstein J. Nanotechnol. 2024, 15, 569–579, doi:10.3762/bjnano.15.49

• sample was added to ethanol and ultrasonically dispersed. Then the dispersed liquid was added dropwise to the copper net. After drying, the US FEI Tecnai F20 TEM was used at an accelerated voltage of 200 kV to capture the morphology in high resolution. Zeta potentials and hydrodynamic diameters were

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

• double-coated carbon conductive tape and DCS nanocrystals were suspended in ethanol (Merck KGaA) at 10 mg/mL, put on the double-coated carbon conductive tape, and coated with platinum using an auto-fine coater for better electrical conduction. For the XRPD analysis, commercial DCS powder and DCS

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

• drugs with low molecular weight, such as Doxil® (for delivery of doxorubicin) launched in 1995, DoceAqualip® (for delivery of docetaxel, devoid of polysorbate-80 and ethanol) launched in 2014, Onivyde® (for delivery of irinotecan) launched in 2015, and Vyxeos® (for synchronous delivery of cytarabine and

Ion beam processing of DNA origami nanostructures

• Leo Sala,
• Agnes Zerolová,
• Violaine Vizcaino,
• Alain Mery,
• Alicja Domaracka,
• Hermann Rothard,
• Philippe Boduch,
• Dominik Pinkas and
• Jaroslav Kocišek

Beilstein J. Nanotechnol. 2024, 15, 207–214, doi:10.3762/bjnano.15.20

• at least 10 s at a distance of 0.2 mm. A volume of 1 μL of a 6 nM DNA origami solution was then dropped onto the Si chips together with 15 μL of 10× FOB and allowed to incubate for 1 h over an ethanol bath. The surfaces were thoroughly washed with at least 1 mL of 50% ethanol and then dried carefully

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

• antioxidant levels R. sativus plants treated with 1000 mg/L of ZnO NPs were selected for further biochemical testing. Determination of total carbohydrate content in leaves The leaf samples (50 mg) were separately homogenized with 5 mL of 80% ethanol and extracted by boiling in a water bath at 95 °C for 10 min

• [60]. The ethanol extracts of the samples were centrifuged at 2500 rpm for 5 min and the supernatant was analyzed for carbohydrate content by the phenol-sulfuric method [61]. Determination of pigment content in leaves Fresh leaf samples (50 mg) were obtained, and chlorophyll a (Chl-a), chlorophyll b

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

• ethanol (50:50 v/v), pH 5.5. 1 mL of the formulations was used, as allowed by the Franz cell. The acceptor solution was constantly agitated at 300 rpm using mini-magnetic agitators. The temperature was maintained at 37 ± 2 °C by utilizing a circulating heating bath in the jacketed cells. The evaluation of

• ), solvent control (5% ethanol, SC), and NE control (Cym-B and Myr-B). Cryogenic transmission electron microscopy of (A) Cym-NE and (B) Myr-NE. The in vitro drug release of nanoemulsions (Cym-NE, Myr-NE) and free terpenes (Cym-Sol and Myr-Sol). Kaplan–Meier survival curve of G. mellonella exposed to (A) Cym

• -Sol, (B) Myr-Sol, (C) Cym-NE, and (D) Myr-NE; DC: death control (100% methanol); SC: solvent control (ethanol 5%); TC: trauma control. Hydrodynamic diameter, PdI, and zeta potential of Cym-NEs.a Hydrodynamic diameter, PdI and zeta potential of Myr-NEs.a In silico molecular/physicochemical properties