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Search for "nanocrystals" in Full Text gives 257 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

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

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  • ]. Similarly, GPx-mimicking nanomaterials use two GSH molecules as cofactors to generate redox cycles for H2O2 degradation. In GPx-mimicking V2O5 nanocrystals, H2O2 first binds to the surface of V2O5 converting V=O into V-peroxido intermediates. The V-peroxido intermediates then react with GSH to V−OH
  • : (1) nanoliposomes, which are a nanoscale bilayer lipid vesicle [132]; (2) nanocapsules, which consist of an inner aqueous core surrounded by a nontoxic polymeric membrane [133]; (3) solid lipid nanoparticles, which consist of a solid lipid core stabilized by a surfactant [134]; and (4) nanocrystals
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Published 12 Apr 2024

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

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  • that structurally simpler formulations with minimal production cost, such as oral nanocrystals and/or parenteral nano-immunostimulants, have the highest chances of making it to the market to treat CD. Nonetheless, substantive political and economic decisions, key to facing technological challenges, are
  • still required regarding a realistic use of nanomedicines effective against CD. Keywords: benznidazole; liposomes; nanocrystals; nanomedicines; nanoparticles; Trypanosoma cruzi; Introduction Nanomedicines are used to solve the problems posed by poor solubility and/or permeability and high toxicity of
  • the cumulative dose of BNZ would reduce its toxicity without losing effectiveness [48], BNZ has recently been formulated as nanocrystals (NCs). The solubility of BNZ formulated as nanocrystals prepared by nanoprecipitation using the non-ionic surfactant poloxamer 188 as a stabilizer (BNZ-NC) was
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Published 27 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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  • –COOH groups, they can be easily labeled for chemical and biological applications. Low-molecular-weight organic molecules coat highly luminescent semiconductor nanocrystals. Materials and Methods Thin films, the intended active layers, were fabricated using the spin-coating method. The layers were a
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Published 02 Feb 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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  • , iron oxide, and mesoporous silica nanoparticles) [4]. Additionally, nanocarrier-free systems, such as drug nanocrystals, are also used to improve the delivery of poorly soluble drugs [5][6]. In our previous study, the saturation concentration of BBR in water was 2.0 mg/mL, while BBR nanoparticles
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Published 12 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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  • systems [19], nanoparticles [20], nanoliposomes [21], micelles [22], and nanocrystals [23] have been utilized. These systems can promote (i) protection of the drug against degradation in physiological media, (ii) increase in drug solubility, and (iii) modification/targeting of the drug enabling transport
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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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  • used in the future [8]. In another work, Gonzalez et al. [48] increased the dissolution of PZQ by producing nanocrystals through high-pressure homogenization, followed by drying through spray-drying. After that, they resuspended the powder in Oral plus® and Oral Sweet®, which are suspension vehicles
  • use known drugs which have its effectivity attested, and aim to increase the dissolution of the drug in vitro [48][94]. Yang et al. [94] verified that PZQ nanocrystals had a more significant dissolution rate than that of the conventional drug due to the particle size and, consequently, it also showed
  • nanoparticles, nanostructure lipid carriers, nanoemulsions, nanocrystals, solid lipid nanoparticles, polymeric nanoparticles, noisomes, and others. Percentage of administration routes used in the 65 selected articles. The routes were: oral, subcutaneous, or intramuscular. In some cases, this information was
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Published 03 Jan 2024

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

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  • to this, they are very promising for the use in many applications, such as LEDs, solar cells, and photodetectors. Reducing their size down to the nanoscale by synthesizing colloidal nanocrystals in solution can allow high control over the perovskite crystallinity and access to various morphologies
  • . Thus, cubic lead halide perovskite nanocrystals have been widely studied and used for various optoelectronic applications [22][23]. More recently, ultra-thin nanoplatelets or nanosheets (several nm thick and hundreds nm large) with very appealing properties were reported [24]. Due to the 2D quantum
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Published 07 Nov 2023

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

Graphical Abstract
  • nanocrystals [13][14]. The popularity of these compounds is related to their volatile nature, ease of preparation, and often lower air sensitivity and toxicity in comparison to organometallic compounds containing carbon–metal bonds (e.g., metallocenes). In the context of a potential use of these organometallic
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Published 26 Sep 2023

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

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  • calculations; semiconductor nanocrystals; silicon phosphide; Introduction Advancements in electronics and related fields are calling for new ways of synthesizing compounds. Subsequently, recognizing and utilizing the special properties of nanoparticles (NPs) of new materials using emerging methods offers a
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Published 26 Sep 2023

Antibody-conjugated nanoparticles for target-specific drug delivery of chemotherapeutics

  • Mamta Kumari,
  • Amitabha Acharya and
  • Praveen Thaggikuppe Krishnamurthy

Beilstein J. Nanotechnol. 2023, 14, 912–926, doi:10.3762/bjnano.14.75

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  • interaction between surface of the antibody and surface of the NP, which are oppositely charged [40]. This method is widely used for antibody conjugation because it is simple and less time-consuming. Recently, Choi et al. used an adsorption method to coat the surface of docetaxel nanocrystals (DTX-NCs) with
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Published 04 Sep 2023

ZnO-decorated SiC@C hybrids with strong electromagnetic absorption

  • Liqun Duan,
  • Zhiqian Yang,
  • Yilu Xia,
  • Xiaoqing Dai,
  • Jian’an Wu and
  • Minqian Sun

Beilstein J. Nanotechnol. 2023, 14, 565–573, doi:10.3762/bjnano.14.47

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  • is a good strategy to grow ZnO nanocrystals on the surface of SiC nanowires. The final hybrids (SiC@ZnO) showed enhanced performance, with a higher value of effective absorption bandwidth (EAB = 6.6 GHz) and lower RLmin (−42.11 dB) [16]. Growing ZnO nanocrystals on carbon materials (e.g., MWCNTs or
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Published 04 May 2023

Polymer nanoparticles from low-energy nanoemulsions for biomedical applications

  • Santiago Grijalvo and
  • Carlos Rodriguez-Abreu

Beilstein J. Nanotechnol. 2023, 14, 339–350, doi:10.3762/bjnano.14.29

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  • nanomedicine has yielded several relevant advancements since its beginnings in the early 2000s. The dissolution kinetics of poorly soluble drugs have been improved by the production of drug nanocrystals, enabling continuous drug release. Lipid molecular structures have been manipulated at the nanoscale to
  • evaporation protocols allowed Generalova et al. [39] to prepare ethyl cellulose nanoparticles containing both hydrophobic and hydrophilic fluorescent nanocrystals. Size measurements showed that nanoparticles were in the range of 128–132 nm. Additionally, the corresponding fluorescence-labeled nanoparticles
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Published 13 Mar 2023

Near-infrared photoactive Ag-Zn-Ga-S-Se quantum dots for high-performance quantum dot-sensitized solar cells

  • Roopakala Kottayi,
  • Ilangovan Veerappan and
  • Ramadasse Sittaramane

Beilstein J. Nanotechnol. 2022, 13, 1337–1344, doi:10.3762/bjnano.13.110

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  • X-ray spectrum analysis confirms the 1:1:1:1.5:1.5 stoichiometric ratio of, respectively, Ag, Zn, Ga, S, and Se. These two results indicate the formation of I-II-III-VI3-type alloyed crystals (AgZnGaS1.5Se1.5 nanocrystals). TEM image analysis reveals the QD nature of the synthesized Ag-Zn-Ga-S-Se
  • nanocrystals. The X-ray diffraction pattern confirms the hexagonal structure. Due to the near-infrared light absorption capability, the synthesized QDs were used as the sensitizer to fabricate QDSCs. The fabricated QDSCs were characterized by using electrochemical impedance spectroscopy and photovoltaic
  • [16]. Recently, Larsen et al. reported that, due to the appropriate bandgap (1.6–1.8 eV), AgGaSe2 is a wide-range light absorber in thin film solar cells [17]. Tianya Bai et al. [18] examined that ZnS-coated AgGaS2 nanocrystals (AgGaS2/ZnS core–shell nanocrystals) have a tunable bandgap and PL colors
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Published 14 Nov 2022

Bioselectivity of silk protein-based materials and their bio-inspired applications

  • Hendrik Bargel,
  • Vanessa T. Trossmann,
  • Christoph Sommer and
  • Thomas Scheibel

Beilstein J. Nanotechnol. 2022, 13, 902–921, doi:10.3762/bjnano.13.81

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  • blocks of (GAGAGS)n, which are responsible for the anisotropic β-sheet-rich nanocrystals [108]. Sericins are based on glue-like serine-rich glycoproteins with rubber-elastic properties [110]. In addition, a further small protein group named seroins was discovered in lepidopteran silk and is known to
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Published 08 Sep 2022

Recent advances in nanoarchitectures of monocrystalline coordination polymers through confined assembly

  • Lingling Xia,
  • Qinyue Wang and
  • Ming Hu

Beilstein J. Nanotechnol. 2022, 13, 763–777, doi:10.3762/bjnano.13.67

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  • increased by using these materials as positive electrodes. The networks can also help to accelerate ion transfer in coordination polymers. When the Prussian blue nanocrystals contain a double-network PAAm/PAMPS hydrogel, the uptake of Cs+ ions from solution could be as high as 397 mg·g−1, which is very
  • of single crystals around present networks. One important application is the assembly of vaccine particles. For instance, antigen (ovalbumin, OVA) and adjuvant (cytosinephosphate-guanine oligodeoxynucleotides, CpG) could be incorporated into ZIF-8 nanocrystals with the help of PEG networks [114]. The
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Published 12 Aug 2022

Zinc oxide nanostructures for fluorescence and Raman signal enhancement: a review

  • Ioana Marica,
  • Fran Nekvapil,
  • Maria Ștefan,
  • Cosmin Farcău and
  • Alexandra Falamaș

Beilstein J. Nanotechnol. 2022, 13, 472–490, doi:10.3762/bjnano.13.40

Graphical Abstract
  • combined with metal nanoparticles, resulting in enhanced photoactivity of Au-decorated ZnO nanocrystals for photoelectrochemical water splitting [9], improved photodetection performance of ZnO nanofibers decorated with Au NPs [10], or enhanced photocatalytic activity of ZnO doped with Au NPs [11]. Moreover
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Published 27 May 2022

Micro- and nanotechnology in biomedical engineering for cartilage tissue regeneration in osteoarthritis

  • Zahra Nabizadeh,
  • Mahmoud Nasrollahzadeh,
  • Hamed Daemi,
  • Mohamadreza Baghaban Eslaminejad,
  • Ali Akbar Shabani,
  • Mehdi Dadashpour,
  • Majid Mirmohammadkhani and
  • Davood Nasrabadi

Beilstein J. Nanotechnol. 2022, 13, 363–389, doi:10.3762/bjnano.13.31

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  • nature. They are constructed as NPs, nanofibers, nanocrystals, nanotubes, and nanofilms by high-tech methods of photolithography, electrospinning, nanoimprinting, and phase separation. Due to the hierarchical structure of articular cartilage ECM, there is considerable enthusiasm regarding the use of
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Published 11 Apr 2022

The effect of metal surface nanomorphology on the output performance of a TENG

  • Yiru Wang,
  • Xin Zhao,
  • Yang Liu and
  • Wenjun Zhou

Beilstein J. Nanotechnol. 2022, 13, 298–312, doi:10.3762/bjnano.13.25

Graphical Abstract
  • of this process. After 30 s of deposition under different conditions, different morphologies of nanocrystals, including pyramids, strips, and spheroids, were obtained (Figure 2). At the beginning of the experiment, Cu and PTFE are in contact through an external force. The surface charge on Cu is
  • ). After the size screening, the proportion of each particle size was calculated. The particle size distribution plays a vital role in improving the output performance. The nanocrystals can be divided into pyramids, spheroids and strips. The shape of the metal nanocrystals determines the distribution of
  • full contact with PTFE, but the small nanoparticles have no or not full contact with PTFE, which leads to the difference in output efficiency. The effect of surface topography on the output performance was studied by classifying the nanocrystals according to different shapes. The reason for the
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Published 15 Mar 2022

Engineered titania nanomaterials in advanced clinical applications

  • Padmavati Sahare,
  • Paulina Govea Alvarez,
  • Juan Manual Sanchez Yanez,
  • Gabriel Luna-Bárcenas,
  • Samik Chakraborty,
  • Sujay Paul and
  • Miriam Estevez

Beilstein J. Nanotechnol. 2022, 13, 201–218, doi:10.3762/bjnano.13.15

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  • (nanotubes, nanorods, nanowhiskers, nanoflower, nanotubes, nanobelts, or nanocrystals), and topographical features such as surface area, size (1–100 nm), and uncoordinated surface sites [26]. The photocatalytic nature of titania is greatly explored in antimicrobial studies as well as in photodynamic cancer
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Published 14 Feb 2022

A comprehensive review on electrospun nanohybrid membranes for wastewater treatment

  • Senuri Kumarage,
  • Imalka Munaweera and
  • Nilwala Kottegoda

Beilstein J. Nanotechnol. 2022, 13, 137–159, doi:10.3762/bjnano.13.10

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  • bioactive products. Patel et al. fabricated bioactive electrospun nanocomposite scaffolds of poly(lactic acid) for bone tissue engineering by incorporating cellulose nanocrystals and observed that the nanohybrid has excellent properties in terms of mechanical strength and thermal stability compared to the
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Published 31 Jan 2022

Self-assembly of amino acids toward functional biomaterials

  • Huan Ren,
  • Lifang Wu,
  • Lina Tan,
  • Yanni Bao,
  • Yuchen Ma,
  • Yong Jin and
  • Qianli Zou

Beilstein J. Nanotechnol. 2021, 12, 1140–1150, doi:10.3762/bjnano.12.85

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  • alcohol dehydrogenase may be incorporated into Cys microspheres, resulting in hybrid microspheres with photocatalytic and biocatalytic activities. In addition, Cys/Zn microspheres were modified with CO32−-doped ZnS nanocrystals by a hydrothermal treatment, and then glutamic acid dehydrogenase was
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Published 12 Oct 2021

Use of nanosystems to improve the anticancer effects of curcumin

  • Andrea M. Araya-Sibaja,
  • Norma J. Salazar-López,
  • Krissia Wilhelm Romero,
  • José R. Vega-Baudrit,
  • J. Abraham Domínguez-Avila,
  • Carlos A. Velázquez Contreras,
  • Ramón E. Robles-Zepeda,
  • Mirtha Navarro-Hoyos and
  • Gustavo A. González-Aguilar

Beilstein J. Nanotechnol. 2021, 12, 1047–1062, doi:10.3762/bjnano.12.78

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  • metabolism, low bioavailability, and fast elimination of the molecule. Considering this, the present work reviews the use of CUR-based nanosystems as anticancer agents, including conventional nanosystems (i.e., liposomes, nanoemulsions, nanocrystals, nanosuspensions, polymeric nanoparticles) and nanosystems
  • anticancer activity, including liposomes, nanoemulsions, nanocrystals, nanosuspensions, and polymeric nanoparticles, as well as dual effect nanosystems which respond to external stimuli (mainly magnetic nanoparticles and photodynamic therapy), in addition to internal ones. Furthermore, key design factors
  • CUR-containing nanosystems that have enhanced therapeutic efficacy are discused. Nanocrystals, nanococrystals, and nanosuspensions. Nanocrystals are crystalline materials that contain the drug or molecule of interest at the nanoscale, with a size that can range from 10–1000 nm [45]. They can be
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Published 15 Sep 2021

Progress and innovation of nanostructured sulfur cathodes and metal-free anodes for room-temperature Na–S batteries

  • Marina Tabuyo-Martínez,
  • Bernd Wicklein and
  • Pilar Aranda

Beilstein J. Nanotechnol. 2021, 12, 995–1020, doi:10.3762/bjnano.12.75

Graphical Abstract
  • nanocrystals [50], molybdenum trioxide [21], manganese dioxide [51], and vanadium carbide nanoparticles [12]. For instance, the electrocatalytic performance of cobalt nanoparticles (CoNPs) was reported by Zhang et al. [45] who studied a cathode comprising hollow carbon nanospheres. The cathode displayed a
  • based on nickel disulfide nanocrystals implanted in nitrogen-doped porous carbon nanotubes. It exhibits high reversible capacity of 650 mAh·g−1 after 200 cycles at 0.1 A·g−1 and excellent cycling stability for 3500 cycles. Additionally, Kumar et al. [51] described a cathode, based on manganese dioxide
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Published 09 Sep 2021

A Au/CuNiCoS4/p-Si photodiode: electrical and morphological characterization

  • Adem Koçyiğit,
  • Adem Sarılmaz,
  • Teoman Öztürk,
  • Faruk Ozel and
  • Murat Yıldırım

Beilstein J. Nanotechnol. 2021, 12, 984–994, doi:10.3762/bjnano.12.74

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  • University, 70200, Karaman, Turkey Department of Biotechnology, Faculty of Science, Selcuk University, 42130, Konya, Turkey 10.3762/bjnano.12.74 Abstract In this present work, CuNiCoS4 thiospinel nanocrystals were synthesized by hot injection and characterized by X-ray diffractometry (XRD), high-resolution
  • transmission electron microscopy (HR-TEM), and energy-dispersive X-ray spectroscopy (EDS). The XRD, EDS, and HR-TEM analyses confirmed the successful synthesis of CuNiCoS4. The obtained CuNiCoS4 thiospinel nanocrystals were tested for photodiode and capacitance applications as interfacial layer between Au and
  • voltage-and frequency-dependent. The fabricated device with CuNiCoS4 thiospinel nanocrystals can be employed in high-efficiency optoelectronic applications. Keywords: Au/CuNiCoS4/p-Si device; CuNiCoS4; optoelectronic applications; Schottky devices; Introduction Recently, spinel materials have attracted
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Published 02 Sep 2021

The role of deep eutectic solvents and carrageenan in synthesizing biocompatible anisotropic metal nanoparticles

  • Nabojit Das,
  • Akash Kumar and
  • Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2021, 12, 924–938, doi:10.3762/bjnano.12.69

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  • preferential facet binding in the solution phase. The seed-mediated approach is a multistep controlled redox reaction utilizing metal seed nanocrystals of 1.5–4.0 nm. The seed particles are synthesized by reducing precursor gold salt using an excess amount of a strong reducing agent, such as sodium borohydride
  • nanocrystals with high-index {771} facets. The nanoparticles with high-index planes exhibited higher catalytic activity due to high density of atoms with low coordination number compared to nanoparticles with low-index facets such as {100}, {111}, or {110}. Chirea et al. synthesized polycrystalline gold
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Published 18 Aug 2021
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