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Search for "silver" in Full Text gives 450 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

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

Graphical Abstract
  • without the need for a resist or development step. Here, we employ for the first time a silver β-diketonate precursor for focused electron beam-induced deposition (FEBID). The used compound (hfac)AgPMe3 operates at an evaporation temperature of 70–80 °C and is compatible with commercially available gas
  • injection systems used in any standard scanning electron microscope. Growth of smooth 3D geometries could be demonstrated for tightly focused electron beams, albeit with low silver content in the deposit volume. The electron beam-induced deposition proved sensitive to the irradiation conditions, leading to
  • varying compositions of the deposit and internal inhomogeneities such as the formation of a layered structure consisting of a pure silver layer at the interface to the substrate covered by a deposit layer with low silver content. Imaging after the deposition process revealed morphological changes such as
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Published 26 Aug 2024

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

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  • organic compounds sensing: Metal sensing has become a crucial area of research because of the detrimental effects of heavy metal ions on living organisms and ecosystems [104][105]. Metal ions, such as silver, are commonly found in water systems because of industrial activities. In recent years, the use of
  • ]. This property allows the alginate-based nanoparticles to effectively bind and detect heavy metal ions present in water systems. The synthesis of alginate-based nanoparticles for metal sensing involves the incorporation of metallic nanoparticles, such as silver nanoparticles or zinc oxide nanoparticles
  • environmental monitoring. Accurate detection and measurement of H2O2 levels is vital for understanding its role in biological processes, diagnosing diseases, and monitoring environmental pollutants [114]. Alginate-based nanoparticles have depicted great potential in hydrogen peroxide sensing. A silver/poly(3
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Published 22 Aug 2024

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

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  • Abstract The present study investigates the effects of input wavelength (1064, 532, and 355 nm) and surrounding liquid environment (distilled water and aqueous NaCl solution) on the picosecond laser ablation on silver (Ag), gold (Au), and Ag/Au alloy targets. The efficacy of the laser ablation technique
  • investigated the impact of 355, 532, and 1064 nm wavelengths on picosecond laser ablation of silver, gold, and silver/gold alloy samples within two distinct liquid media: distilled water (DW) and aqueous NaCl solution. Significant variations in the productivity and size of NPs were observed across different
  • were of analytic grade and used for cleaning and diluting the samples. The laser ablation samples were 99% pure and had a thickness of 1 mm. Synthesis of nanoparticles by laser ablation in liquid Initially, silver, gold, and silver/gold (Ag50Au50) alloy targets (99%) were obtained from a local market
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Published 19 Aug 2024

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

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  • shape was looked into by Holec et al. [48], while Martin et al. considered silver NPs [49]. A comparative study of surface disorder in Au and Ag NPs upon cooling was carried out by Agudelo-Giraldo et al. [50]. Chushak and Bartell considered the structural modifications upon freezing of several molten Au
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Published 07 Aug 2024

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

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  • of metal and oxygen atoms as descriptors in metal oxide models [15][16]. It is also common to find single-element descriptors based on the physicochemical properties of pure elements. The use of single-element descriptors is trivial in single-metal nanoforms, such as silver or gold nanoparticles [17
  • substituents or modifiers on the surface of a NM is essential to identify and describe the nanoform as they may influence its properties. The characterization of these substituents or modifiers becomes even more relevant when the core composition among different NMs is the same (e.g., silver), but the
  • descriptor of the category “a” or “b” in our classification). Kudrinskiy et al. also modelled silver nanoparticles with different coatings without introducing directly the capping agent in the model, but only by observing the differences in size, reactivity, and electric behavior of the nanoforms with
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Published 11 Jul 2024

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

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  • functionalities in a single particle, making them extremely versatile and valuable in various scientific, technological, and industrial applications. In this work, bimetallic silver–palladium Janus nanoparticles were obtained for the first time using the inert gas condensation technique. In order to achieve this
  • particle. A density functional theory structural aims to understand the atomic arrangement at the interface of the Janus particle. Keywords: bimetallic nanoparticles; inert gas condensation; Janus nanoparticles; silver–palladium nanoparticles; Introduction Janus-type nanoparticles are specific structures
  • offered by the same two metals in the bulk, such as Au and Ni [4]. Alloying immiscible elements is feasible in the nanoscale regime because the enthalpy of the mixture decreases as the size of the nanoparticles decreases, and it generally becomes negative below a certain particle size [5]. Silver
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Published 04 Jul 2024

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

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  • polymeric scaffold containing polysuccinimide (PSI) and antibacterial salts. Antibacterial agents for therapeutical purposes mostly contain silver ions which are associated with high environmental impact and, in some cases, may cause undesired immune reactions. In our work, we prepared nanofibrous systems
  • to apply silver ions, which are frequently used in clinical practice. However, they can cause a large environmental burden [26][27] and, in some cases, allergies [28]. Since urgent actions are needed to stop AMR and avoid the negative environmental impact, developing other agents and treatment
  • strategies to fight bacterial pathogens with similar effects to antibiotics and silver is essential. In our study, inorganic salts, namely Zn(O2CCH3)2 and Sr(NO3)2, were added to the polymer fibers. These salts possess antibacterial properties and stimulate cell proliferation as well as tissue regeneration
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Published 02 Jul 2024

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

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  • their true potential application. Experimental Materials All the following chemicals were used as received: hexadecyltrimethylammonium bromide (Fluka), myristyltrimethylammonium bromide (Fluka), dodecyltrimethylammonium bromide (TCI Chemicals), chloroauric acid (HAuCl4·3H2O, Finar Chemicals), silver
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Published 07 Jun 2024

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

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  • structures on top of surfactant-free gold, silver, and copper nanoparticles after adding polyynes, while Zhang et al. performed ablation of silver in acetone with long-term storage, which resulted in shape alteration, size separation, and changes in the carbon shells. As such, molecular hydrocarbons with
  • nanoparticles by picosecond LAL [166], indicating that solid carbon products can form independently from solvent decomposition during LAL. Femtosecond LRL of copper and silver acetylacetonate in alcohol solvent was found to produce Cu and Cu–Ag alloy nanoparticles with carbon shells composed of disordered
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Published 05 Jun 2024

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

Graphical Abstract
  • 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
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Published 25 Apr 2024

Heat-induced morphological changes in silver nanowires deposited on a patterned silicon substrate

  • Elyad Damerchi,
  • Sven Oras,
  • Edgars Butanovs,
  • Allar Liivlaid,
  • Mikk Antsov,
  • Boris Polyakov,
  • Annamarija Trausa,
  • Veronika Zadin,
  • Andreas Kyritsakis,
  • Loïc Vidal,
  • Karine Mougin,
  • Siim Pikker and
  • Sergei Vlassov

Beilstein J. Nanotechnol. 2024, 15, 435–446, doi:10.3762/bjnano.15.39

Graphical Abstract
  • fragmentation of NWs is attributed to the interplay between heat-enhanced diffusion and Rayleigh instability. In this work, we demonstrated that contact with the substrate plays an important role in the fragmentation process and can strongly affect the outcome of the heat treatment. We deposited silver NWs onto
  • ; silver nanowires; Introduction Metal nanowires (NWs) are promising key elements in a wide range of applications, including solar cells [1], smart windows [2], flexible sensors [3], touch screens [4], biocompatible polymer binders [5], temperature sensing [6], medical materials [7], and key elements of
  • , and characterization of such materials [9][10]. Silver NWs are among the most extensively studied materials for NW-based transparent electrodes. High-quality Ag NWs can be synthesized relatively easily in large quantities, with precise control over their length and diameter [11][12]. Compared to
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Published 22 Apr 2024

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

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  • Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi, Vietnam 10.3762/bjnano.15.38 Abstract Deep eutectic solvents (DESs) have recently emerged as an alternative solvent for nanoparticle synthesis. There have been numerous advancements in the fabrication of silver nanoparticles
  • biosensors are commonly made of LSPR materials [17]. With the development of synthesis techniques, numerous nanostructures of noble metals have been extensively studied to improve the intrinsic parameters of sensors. Silver nanoparticles (Ag NPs) exhibit great performance in sensing applications owing to the
  • scholars, the rod-like morphology is better than a spherical one at increasing the extinction coefficient, about 109 to 1011 M−1·cm−1 higher [43][44], which proves the applicability of Ag NPs-DES in SERS biosensors. Furthermore, X-ray fluorescence mapping was used to evaluate the presence of silver in the
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Published 16 Apr 2024

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

Graphical Abstract
  • typical example, nanofibers composed of polygalacturonic acid, hyaluronic acid, and embedded silver nanoparticles were applied to recover wounded areas of albino rats in vivo [149]. In this nanocomposite, silver nanoparticles acted as an antioxidant, polygalacturonic acid acted as a reducing agent for
  • generating silver nanoparticles from silver ions, whereas hyaluronic acid enhanced hydrophilicity and strain activities. To enhance wound repair, metal or metal oxide-based nanoantioxidants can be conjugated with miRNA146a. Because of the capability of miRNA146a to downregulate IL-6 and IL-8 expression, this
  • is not an ideal method because it can be painful. In response, antioxidant nanomaterials coupled with hydrogels provide a promising method to topically deliver antioxidant nanomaterials into the body [154][155]. Nanoantioxidants (such as fullerene, cerium, gold, silver, and iron nanoparticles) and
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Published 12 Apr 2024

Ultrasensitive and ultrastretchable metal crack strain sensor based on helical polydimethylsiloxane

  • Shangbi Chen,
  • Dewen Liu,
  • Weiwei Chen,
  • Huajiang Chen,
  • Jiawei Li and
  • Jinfang Wang

Beilstein J. Nanotechnol. 2024, 15, 270–278, doi:10.3762/bjnano.15.25

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  • ion beam sputtering was obtained from Fuzhou Yingfei Xun Photoelectric Tech Co., Ltd, China; it possessed a density of 19.3 g·cm−3 and a conductivity of 4.52 × 107 S·m−1. Silver conductive adhesive, which was procured from Shenzhen Ausbond Co., LTD. (Guangdong, China), was employed to affix copper
  • was exerted on the surface of the Au film at a rate of 10% strain per second, resulting in the initiation and propagation of cracks. Following the release of the pre-stretch, the Au thin films were affixed to silver wires using silver paste at both ends. Ultimately, the surface of the helix was coated
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Published 01 Mar 2024

CdSe/ZnS quantum dots as a booster in the active layer of distributed ternary organic photovoltaics

  • Gabriela Lewińska,
  • Piotr Jeleń,
  • Zofia Kucia,
  • Maciej Sitarz,
  • Łukasz Walczak,
  • Bartłomiej Szafraniak,
  • Jerzy Sanetra and
  • Konstanty W. Marszalek

Beilstein J. Nanotechnol. 2024, 15, 144–156, doi:10.3762/bjnano.15.14

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  • are used in opto- and nanoelectronics. QDs establish a class of materials transitional between subatomic and mass types of matter. The classification of QDs according to the core material is divided into cadmium [7][8], silver [9][10], indium [9], carbon [11][12], and silicon [13][14]. Numerous
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Published 02 Feb 2024

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

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  • detection is described using a silver/platinum nanoplate (Ag/Pt NPL) that interacts with an oligonucleotide aptamer as a bioreceptor. The size of the Ag/Pt NPLs was about 42 nm according to the FE-SEM images. The EDS result indicates that a thin layer of Pt ions was coated on the surface of the Ag NPLs
  • ; biosensor; detection; E. coli; peroxidase activity; silver/platinum nanoplate; Introduction One of the most dangerous foodborne infections is caused by E. coli. It can induce hemorrhagic colitis, hemolytic uremic syndrome, and thrombocytopenic purpura. E. coli is responsible for more than 2 million acute
  • such as pathogens [14]. Functional nanomaterials with catalytic activity similar to enzymes (nanozymes) reveal substantial benefits over natural enzymes, such as ultrahigh environmental stability, appropriate catalytic activity, and ease of prototyping [15][16]. We created plate-like silver
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Published 17 Jan 2024

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

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  • been employed to produce nanoformulations of drugs for endowing a better therapeutic effect. The nanoformulations for drug delivery can be designed using nanocarrier systems, including organic materials (liposomes, nanoemulsions, nanomicelles, and nanofibers) and inorganic nanoparticles (gold, silver
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Published 12 Jan 2024

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

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  • appropriate electrical conductivity [22]. Suspension of conductive fillers in the hydrogel structure, such as metallic particles (gold nanoparticles, silver nanoparticles) [23][24][25], carbon-based materials (GO graphene oxide, CNT carbon nanotubes) [26][27][28], and conductive polymers (polyaniline
  • ]. Cai et al. found some silver nanoparticles only slightly present in the skeleton of a PVA@DEL composite hydrogel [23]. Most of the Ag nanoparticles were observed in the wall of the hydrogel network. In our case, for the Hgel-MCO-cCB 1:3 sample, when the volume percentage of cCB was 17.1% (Table 3
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Published 11 Jan 2024

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

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  • in the spleen of mice was around 60% for free-UA and close to 90% for NLC-UA. Confocal microscopy images proved the cell uptake of NLC into macrophages. Metal nanoparticles are also excellent alternatives for carrying antileishmanial drugs [71]. Almayouf et al. produced silver nanoparticles (Ag-NP
  • , assembly, and optical properties [113]. These nanoformulations can be synthesized through chemical, physical, or biological processes and are solely generated from metal precursors such as silver and gold [114][115]. In addition, MNPs have been widely used in therapy, drug delivery, targeting, and imaging
  • [116][117]. Current studies have directed the use of metallic nanoparticles such as silver and gold nanoparticles against Leishmania sp. [118]. As silver and gold nanoparticles can produce reactive oxygen species (ROS) and Leishmania is known to be extremely sensitive to these compounds, these have
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Published 04 Jan 2024

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

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  • ) are derived from metals or silica [25]. The most common metal used in the production of IN found in this work was gold, even though it was also possible to observe a great amount of works using silver and zinc (Figure 5). While silica-derived nanoparticles are used in the treatment against
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Published 03 Jan 2024

A multi-resistance wide-range calibration sample for conductive probe atomic force microscopy measurements

  • François Piquemal,
  • Khaled Kaja,
  • Pascal Chrétien,
  • José Morán-Meza,
  • Frédéric Houzé,
  • Christian Ulysse and
  • Abdelmounaim Harouri

Beilstein J. Nanotechnol. 2023, 14, 1141–1148, doi:10.3762/bjnano.14.94

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  • were fixed on the sample surface, creating a set of 15 resistance values, as shown in Figure 1a. The substrate was fixed onto a circular metallic plate (15 mm diameter), which acts as a back electrode connected to all resistances using a peripheral gold line and dashes of silver paste deposited on the
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Published 22 Nov 2023

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

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  • 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
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Published 15 Nov 2023

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

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  • bonding between nanoparticles and nanorods. To fabricate the photodetector, CuO NPs/ZnO NRs were deposited on a glass substrate initially. Then, silver electrodes with a thickness of 100 nm were directly patterned on the glass substrate by a sputtering process using a shadow mask with 0.3 cm channel
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Published 13 Oct 2023

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

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  • length and 3 cm in width is cut, and a layer of conductive silver paste is evenly applied to both sides of the film. The paste is then dried completely by heating on a plate at 55 °C for 2 h. Copper foil tape is used as an electrode to attach to the conductive silver paste layer on both sides, and wires
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Published 31 Jul 2023

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

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  • the potential to be a valuable analytical tool for monitoring environmental contaminants. Keywords: 3D printing; microfluidic droplet; SERS substrate; silver nanoparticle; smartphone detection; Introduction Surface-enhanced Raman spectroscopy (SERS) has emerged as a powerful optical trace detection
  • 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
  • method limits the amount of precursor chemicals and enables the sequential flow of droplets, resulting in silver nanoparticles of uniform shape and size. We investigated the effects of different synthesis conditions on the size distribution, dispersity, and LSPR wavelength of the silver nanoparticles
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Published 21 Jul 2023
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