Potential of a deep eutectic solvent in silver nanoparticle fabrication for antibiotic residue detection

• Le Hong Tho,
• Bui Xuan Khuyen,
• Ngoc Xuan Dat Mai and
• Nhu Hoa Thi Tran

Beilstein J. Nanotechnol. 2024, 15, 426–434, doi:10.3762/bjnano.15.38

• DES in nanomaterials fabrication and a possible guidance for low-cost and effective SERS substrate construction in biosensors. Experimental Chemicals ʟ-Ascorbic acid (AA, C6H8O6, 99%), silver nitrate (AgNO3, 99%), (3-aminopropyl)triethoxysilane (APTES, 99%), NFT (C8H6N4O5, 98%), and SDZ (C10H10N4O2S

New application of bimetallic Ag/Pt nanoplates in a colorimetric biosensor for specific detection of E. coli in water

• Azam Bagheri Pebdeni,
• Mohammad N. AL-Baiati and
• Morteza Hosseini

Beilstein J. Nanotechnol. 2024, 15, 95–103, doi:10.3762/bjnano.15.9

• system offers a rapid, sensitive, and portable biosensor for preventing E. coli contamination and resolving public health concerns in the future. Experimental Materials Silver nitrate (AgNO3), potassium tetrachloroplatinate(II), ascorbic acid, TMB, H2O2 (for determining peroxidase-like activity), and

Silver-based SERS substrates fabricated using a 3D printed microfluidic device

• Phommachith Sonexai,
• Minh Van Nguyen,
• Bui The Huy and
• Yong-Ill Lee

Beilstein J. Nanotechnol. 2023, 14, 793–803, doi:10.3762/bjnano.14.65

• various scientific and technological applications. The Ag NPs were synthesized using a droplet-based microfluidic device and a stereolithographic 3D printing method. The microfluidic device was optimized to produce uniform droplets, within which silver nitrate was reduced by sodium borohydride. This

• . Experimental Chemicals and apparatus Silver nitrate (AgNO3, 99.9%) was purchased from Kojima Chemical (Japan). Sodium borohydride (NaBH4, 98%) and melamine (99%) were obtained from Sigma-Aldrich (Republic of Korea). Hydrofluoric acid (48–51%), sulfuric acid (98%), nitric acid (65–70%), rhodamine B (pure

• aqueous solutions and oil, respectively. Synthesis of silver nanoparticles Different molar ratios of silver nitrate to sodium borohydride were used to produce Ag nanoparticles in the microfluidic device at room temperature, with flow rates of 20 and 80 µL/min for the aqueous solutions and oil

Silver nanoparticles loaded on lactose/alginate: in situ synthesis, catalytic degradation, and pH-dependent antibacterial activity

• Nguyen Thi Thanh Tu,
• T. Lan-Anh Vo,
• T. Thu-Trang Ho,
• Kim-Phuong T. Dang,
• Van-Dung Le,
• Phan Nhat Minh,
• Chi-Hien Dang,
• Vinh-Thien Tran,
• Van-Su Dang,
• Tran Thi Kim Chi,
• Hieu Vu-Quang,
• Radek Fajgar,
• Thi-Lan-Huong Nguyen,
• Van-Dat Doan and
• Thanh-Danh Nguyen

Beilstein J. Nanotechnol. 2023, 14, 781–792, doi:10.3762/bjnano.14.64

• reagents were purchased from Acros (Belgium): silver nitrate (AgNO3), methyl orange (MO), rhodamine B (RhB), calcium acetate hydrate, sodium alginate, and sodium tetrahydroborate (NaBH4). Lactose was obtained from Yong Da (China). The chemicals were used without additional purification. Distilled water was

Quercetin- and caffeic acid-functionalized chitosan-capped colloidal silver nanoparticles: one-pot synthesis, characterization, and anticancer and antibacterial activities

• Akif Hakan Kurt,
• Elif Berna Olutas,
• Fatma Avcioglu,
• Hamza Karakuş,
• Mehmet Ali Sungur,
• Cansu Kara Oztabag and
• Muhammet Yıldırım

Beilstein J. Nanotechnol. 2023, 14, 362–376, doi:10.3762/bjnano.14.31

• quercetin (≥95%) were purchased from Sigma-Aldrich. Silver nitrate (AgNO3, ≥99.8%) was obtained from ISOLAB. Dimethyl sulfoxide (DMSO, ≥99.0%), glacial acetic acid (CH3COOH), anhydrous aluminium chloride (AlCl3, ≥98.0%), and Folin–Ciocalteau’s phenol reagent (2 N) were purchased from Merck. Water was

Antimicrobial and mechanical properties of functionalized textile by nanoarchitectured photoinduced Ag@polymer coating

• Jessica Plé,
• Marine Dabert,
• Helene Lecoq,
• Sophie Hellé,
• Lydie Ploux and
• Lavinia Balan

Beilstein J. Nanotechnol. 2023, 14, 95–109, doi:10.3762/bjnano.14.11

• (complete inhibition for approximately 2.5 and 15 µg/g released silver, respectively). The nanocomposite structure can thus be tuned in order to provide the best compromise between antimicrobial activity and mechanical longevity depending on the field of application. Experimental Materials Silver nitrate

In search of cytotoxic selectivity on cancer cells with biogenically synthesized Ag/AgCl nanoparticles

• Mitzi J. Ramírez-Hernández,
• Mario Valera-Zaragoza,
• Omar Viñas-Bravo,
• Ariana A. Huerta-Heredia,
• Miguel A. Peña-Rico,
• Erick A. Juarez-Arellano,
• David Paniagua-Vega,
• Eduardo Ramírez-Vargas and
• Saúl Sánchez-Valdes

Beilstein J. Nanotechnol. 2022, 13, 1505–1519, doi:10.3762/bjnano.13.124

• between cancer cells and healthy cells can be achieved. Experimental Materials MD2 hybrid pineapples (family: Bromeliaceae, genus: Ananas Mill, 1754, species: comosus (L.) Merr., 1917) were obtained from crops in the Tuxtepec region of the state of Oaxaca, Mexico. Silver nitrate (CAS 7761-88-8, ACS

Supramolecular assembly of pentamidine and polymeric cyclodextrin bimetallic core–shell nanoarchitectures

• Alexandru-Milentie Hada,
• Nina Burduja,
• Marco Abbate,
• Claudio Stagno,
• Guy Caljon,
• Louis Maes,
• Nicola Micale,
• Massimiliano Cordaro,
• Angela Scala,
• Antonino Mazzaglia and
• Anna Piperno

Beilstein J. Nanotechnol. 2022, 13, 1361–1369, doi:10.3762/bjnano.13.112

• was not synergically promoted by PolyCD. Moreover, we assumed that the biological inactivity of pentamidine in nanoGSP could be attributed to its not prompt availability due to strong interactions of the drug with CD cavities. Experimental General remarks Tetrachloroauric acid (HAuCl4), silver nitrate

Hierarchical Bi₂WO₆/TiO₂-nanotube composites derived from natural cellulose for visible-light photocatalytic treatment of pollutants

• Zehao Lin,
• Zhan Yang and
• Jianguo Huang

Beilstein J. Nanotechnol. 2022, 13, 745–762, doi:10.3762/bjnano.13.66

• , anhydrous ethanol, acetone, barium sulfate (BaSO4), rhodamine B, isopropyl alcohol (IPA), N-methylpyrrolidone, ethylenediaminetetraacetic acid disodium salt (EDTA-2Na), silver nitrate (AgNO3), sodium sulfate (Na2SO4), ethylene glycol (EG), potassium dichromate (K2Cr2O7), phosphoric acid (H3PO4), and

Modification of a SERS-active Ag surface to promote adsorption of charged analytes: effect of Cu²⁺ ions

• Bahdan V. Ranishenka,
• Andrei Yu. Panarin,
• Irina A. Chelnokova,
• Sergei N. Terekhov,
• Peter Mojzes and
• Vadim V. Shmanai

Beilstein J. Nanotechnol. 2021, 12, 902–912, doi:10.3762/bjnano.12.67

• round bottom flask and stirred until complete dissolution. Then, 640 µL of 4 mg/mL silver nitrate solution were added under vigorous stirring and kept for 4 h in the ultrasonic bath. The resulting silver nanoparticle solution was dialyzed against 2.5 mM sodium citrate and stored at 4 °С. Glass and

Silver nanoparticles nucleated in NaOH-treated halloysite: a potential antimicrobial material

• Yuri B. Matos,
• Rodrigo S. Romanus,
• Mattheus Torquato,
• Edgar H. de Souza,
• Rodrigo L. Villanova,
• Marlene Soares and
• Emilson R. Viana

Beilstein J. Nanotechnol. 2021, 12, 798–807, doi:10.3762/bjnano.12.63

• then evaluated in terms of surface antimicrobial activity. Experimental Halloysite (>99%), silver nitrate (AgNO3(s), >99%), and dodecanethiol were obtained from Sigma-Aldrich; sodium hydroxide (NaOH(s), >99%) was purchased from Alpha Quimica; low-density polyethylene (LDPE) was purchased from Braskem

• the three samples previously prepared: HNT-0, HNT-4, and HNT-8) were dispersed in 20 mL of AgNO3 solution (3 M) and left to rest for one day to load the silver nitrate into the clay structure. Then the samples were filtered, dried at 80 °C for 3 h, and heated to 500 °C for 15 min, to reduce AgNO3 into

• opening of the nanotubes into nanosheets was a welcomed surprise, as it exposes the aluminol phase to silver nucleation. Thermal reduction of silver nanoparticles The TGA and DSC analysis results of HNT loaded with silver nitrate are presented in Figure 5. Since the by-products of silver nitrate reduction

Fate and transformation of silver nanoparticles in different biological conditions

• Barbara Pem,
• Marija Ćurlin,
• Darija Domazet Jurašin,
• Valerije Vrček,
• Rinea Barbir,
• Vedran Micek,
• Raluca M. Fratila,
• Jesus M. de la Fuente and
• Ivana Vinković Vrček

Beilstein J. Nanotechnol. 2021, 12, 665–679, doi:10.3762/bjnano.12.53

• , TKA Wasseraufbereitungssysteme GmbH, Niederelbert, Germany). Synthesis and characterization of AgNPs stabilized with different coating agents AgNPs were synthesised by the reduction of silver nitrate with sodium borohydride in the presence of AOT, PVP, and PLL as coating agents to provide colloidal

High-yield synthesis of silver nanowires for transparent conducting PET films

• Gul Naz,
• Hafsa Asghar,
• Muhammad Ramzan,
• Muhammad Arshad,
• Rashid Ahmed,
• Muhammad Bilal Tahir,
• Bakhtiar Ul Haq,
• Nadeem Baig and
• Junaid Jalil

Beilstein J. Nanotechnol. 2021, 12, 624–632, doi:10.3762/bjnano.12.51

• synthesis, ethylene glycol was used as a reducing agent in the presence of PVP as capping agent. Silver nitrate and CuCl2 were used as sources of silver and metallic salt, respectively. The resultant nanowires grew 3.3–4.7 µm in length and 75–97 nm in diameter. A silver nanowire ink was then transferred to

• PET films whose transmittance was calculated to be up to 92.5%. Experimental Materials All required chemical reagents, that is, silver nitrate (AgNO3), ethyl glycol, polyvinylpyrrolidone (PVP), copper chloride (CuCl2), hydroxyethyl cellulose (HEC), polyethylene terephthalate (PET) film, acetone, and

• diameter, ethylene glycol (EG) was used as a solvent and also acted as a reducer. Silver nitrate (AgNO3) was used as source of silver. The stabilizer used in the reaction was PVP, which also acted as a capping agent. In addition to stabilizing and capping, PVP also prevented the agglomeration of silver

Surface-enhanced Raman scattering of water in aqueous dispersions of silver nanoparticles

• Paulina Filipczak,
• Krzysztof Hałagan,
• Jacek Ulański and
• Marcin Kozanecki

Beilstein J. Nanotechnol. 2021, 12, 497–506, doi:10.3762/bjnano.12.40

• synthesized via simple chemical reduction of silver nitrate with sodium borohydride [36]. The volume added of potassium bromide during the synthesis was crucial for the size control of AgNPs. The sample without added KBr turned blue and the ample with 40 µL of the added KBr turned yellow. The synthesized

Rapid controlled synthesis of gold–platinum nanorods with excellent photothermal properties under 808 nm excitation

• Jialin Wang,
• Qianqian Duan,
• Min Yang,
• Boye Zhang,
• Li Guo,
• Pengcui Li,
• Wendong Zhang and
• Shengbo Sang

Beilstein J. Nanotechnol. 2021, 12, 462–472, doi:10.3762/bjnano.12.37

• Reagents Gold(III) chloride trihydrate (HAuCl4·3H2O), potassium tetrachloroplatinate(II) (K2PtCl4), silver nitrate (AgNO3), cetyltrimethylammonium bromide (CTAB), ascorbic acid, and sodium borohydride (NaBH4) were purchased from Sinopharm Chemical Reagent Co. Ltd. (Taiyuan, China). Deionized water was used

Doxorubicin-loaded gold nanorods: a multifunctional chemo-photothermal nanoplatform for cancer management

• Uzma Azeem Awan,
• Abida Raza,
• Shaukat Ali,
• Rida Fatima Saeed and
• Nosheen Akhtar

Beilstein J. Nanotechnol. 2021, 12, 295–303, doi:10.3762/bjnano.12.24

• -related side effects in cancer management. Experimental Materials CTAB (99.9%), hydrogen tetrachloroaurate(III) trihydrate (HAuCl4·3H2O 99%), ʟ-ascorbic acid (C6H8O6, 99%), sodium borohydride (NaBH4, 98%), silver nitrate (AgNO3, 99%), doxorubicin, (98%) poly(sodium 4-styrenesulfonate) (PSS; Mw = 70,000

Characterization, bio-uptake and toxicity of polymer-coated silver nanoparticles and their interaction with human peripheral blood mononuclear cells

• Sahar Pourhoseini,
• Reilly T. Enos,
• Angela E. Murphy,
• Bo Cai and
• Jamie R. Lead

Beilstein J. Nanotechnol. 2021, 12, 282–294, doi:10.3762/bjnano.12.23

• comprehensive test. Experimental Synthesis and characterization of PVP-AgNPs Citrate-capped AgNPs (cit-AgNPs) were synthesized by the standard reduction of silver nitrate (AgNO3) in trisodium citrate as described in previous publications [56][57][58]. Briefly, separate solutions of AgNO3, trisodium citrate, and

A review on the green and sustainable synthesis of silver nanoparticles and one-dimensional silver nanostructures

• Sina Kaabipour and
• Shohreh Hemmati

Beilstein J. Nanotechnol. 2021, 12, 102–136, doi:10.3762/bjnano.12.9

• AgNPs include the precursor introduction method, reactor pressure, gas flow properties, deposition rate, deposition duration, and substrate surface temperature [157][241]. The type of precursor appears to be the most significant factor in the process [241]. Silver nitrate is the most widely used

• , cell-free aqueous extract, aqueous supernatant of dried algae, or aqueous filtrate of the broth are mixed with the silver solution (mostly silver nitrate) to synthesize AgNPs [189]. The synthesis process is intracellular when the reaction takes place within the cells, and extracellular when

Nanocasting synthesis of BiFeO₃ nanoparticles with enhanced visible-light photocatalytic activity

• Thomas Cadenbach,
• Maria J. Benitez,
• A. Lucia Morales,
• Cesar Costa Vera,
• Luis Lascano,
• Francisco Quiroz,
• Alexis Debut and
• Karla Vizuete

Beilstein J. Nanotechnol. 2020, 11, 1822–1833, doi:10.3762/bjnano.11.164

• radicals are the main active species in photocatalytic degradation reactions [22]. The addition of silver nitrate (AgNO3, 2 mM) to the photocatalytic reaction leads to an improvement of the overall efficiency resulting in a complete degradation of RhB after 240 min (Figure 12). This is explained by the

Antimicrobial metal-based nanoparticles: a review on their synthesis, types and antimicrobial action

• Matías Guerrero Correa,
• Fernanda B. Martínez,
• Cristian Patiño Vidal,
• Camilo Streitt,
• Juan Escrig and
• Carol Lopez de Dicastillo

Beilstein J. Nanotechnol. 2020, 11, 1450–1469, doi:10.3762/bjnano.11.129

• bacteria (inhibition zone diameter of E. coli: 22 ± 0.86 mm) and Gram-positive bacteria (inhibition zone diameter of B. subtilis: 23 ± 0.9 mm) [88]. Bio-reduction of silver nitrate with Parkia speciosa leaf extract generated spherical Ag NPs with an average particle size of 31 nm [89]. A major

• antibacterial activity against S. aureus was followed by B. subtilis, E. coli and P. aeruginosa. By using latex extracted from an immature Papaya carica fruit and silver nitrate, spherical and highly stable Ag NPs were also obtained. The reduction in Gram-positive bacteria, such as E. faecalis and B. subtilis

• strains (Ganoderma enigmaticum and Trametes ljubarskyi) and silver nitrate [92]. The generated NPs presented a size range varying between 15 and 25 nm and their antimicrobial activity was evaluated against eight pathogenic bacteria. Ag NPs obtained from G. enigmaticum fungi showed the greatest inhibition

Silver-decorated gel-shell nanobeads: physicochemical characterization and evaluation of antibacterial properties

• Marta Bartel,
• Katarzyna Markowska,
• Marcin Strawski,
• Krystyna Wolska and
• Maciej Mazur

Beilstein J. Nanotechnol. 2020, 11, 620–630, doi:10.3762/bjnano.11.49

• of the highest quality commercially available and were used as received: divinylbenzene (DVB)-cross-linked polystyrene latex beads (Magsphere), sulfuric acid (POCh, 95–97%), silver nitrate (Aldrich, 99%), sodium borohydride (Aldrich, ≥96%), polyvinylpyrrolidone (Aldrich, Mw ≈ 55000), sodium hydroxide

Gold and silver dichroic nanocomposite in the quest for 3D printing the Lycurgus cup

• Lars Kool,
• Floris Dekker,
• Anton Bunschoten,
• Glen J. Smales,
• Brian R. Pauw,
• Aldrik H. Velders and
• Vittorio Saggiomo

Beilstein J. Nanotechnol. 2020, 11, 16–23, doi:10.3762/bjnano.11.2

• variations, we found that reducing silver ions at room temperature immediately followed by an addition of a polyvinylpyrrolidone (PVP) solution formed dichroic silver nanoparticles in minutes. The addition of the reducing agent (NaBH4) to a silver nitrate solution forms nanoclusters, and the immediate

• differently to different angles of illumination. Experimental General Silver nitrate (Sigma-Aldrich), sodium borohydride (Sigma-Aldrich), polyvinylpyrrolidone K30 (MW 40 KDa, Alfa Aesar), chloroauric acid trihydrate (Alfa Aesar), trisodium citrate dihydrate (Sigma-Aldrich) were purchased and used without

• fiber optic as detector. Spectra were normalized against the maximum intensity. The flashlight LED used was the LED light of an iPhone SE, and the CRI 95 LED was an Aputure AL-M9. The pictures were recorded using a Panasonic Lumix DMC-GF2. Synthesis of dichroic AgNP Silver nitrate (190 mg, 1.1 mmol) of

Porous silver-coated pNIPAM-co-AAc hydrogel nanocapsules

• William W. Bryan,
• Riddhiman Medhi,
• Maria D. Marquez,
• Supparesk Rittikulsittichai,
• Michael Tran and
• T. Randall Lee

Beilstein J. Nanotechnol. 2019, 10, 1973–1982, doi:10.3762/bjnano.10.194

• (iii) growth of the silver nanocapsule around the hydrogel core by the reduction of silver nitrate onto the gold seeds, which act as templates. Note that the concentration of the sodium citrate during the galvanic replacement step determines whether the synthesized silver nanocapsule is porous or

• circumvent these issues and accomplish smooth, continuous nanocapsule growth, we utilized sodium citrate to assist in the stabilization of the core template along with silver nitrate to increase the rate of nanocapsule growth. This approach proved to be successful in growing complete silver nanocapsules, as

• mixture was allowed to sit overnight. The resultant Au-seeded hydrogel particles were centrifuged and redispersed in clean water to remove any unattached THPC gold seeds. Silver nanocapsule formation. Following the work in [77], a silver growth solution was prepared by dissolving silver nitrate (0.003 g

Toxicity and safety study of silver and gold nanoparticles functionalized with cysteine and glutathione

• Barbara Pem,
• Igor M. Pongrac,
• Lea Ulm,
• Ivan Pavičić,
• Valerije Vrček,
• Darija Domazet Jurašin,
• Marija Ljubojević,
• Adela Krivohlavek and
• Ivana Vinković Vrček

Beilstein J. Nanotechnol. 2019, 10, 1802–1817, doi:10.3762/bjnano.10.175

• more toxic-transformed nanospecies. Materials and Methods Chemicals and reagents All chemicals and materials were purchased from Sigma Aldrich (Darmstadt, Germany) unless stated otherwise. Silver nitrate (AgNO3) was purchased from Alfa Aesar (Karlsruhe, Germany). All compounds were reagent-grade or

A silver-nanoparticle/cellulose-nanofiber composite as a highly effective substrate for surface-enhanced Raman spectroscopy

• Yongxin Lu,
• Yan Luo,
• Zehao Lin and
• Jianguo Huang

Beilstein J. Nanotechnol. 2019, 10, 1270–1279, doi:10.3762/bjnano.10.126

• Silver nitrate (AgNO3), β-ᴅ-glucose and concentrated ammonia were bought from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China); sodium hydrate (NaOH) was purchased from Shanghai Titanchem Co., Ltd. (Shanghai, China); Rhodamine 6G (R6G, 98.5%) was obtained from J&K Chemical Ltd. (Shanghai, China