Search results

Search for "precipitation" in Full Text gives 277 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Comprehensive review on ultrasound-responsive theranostic nanomaterials: mechanisms, structures and medical applications

  • Sepand Tehrani Fateh,
  • Lida Moradi,
  • Elmira Kohan,
  • Michael R. Hamblin and
  • Amin Shiralizadeh Dezfuli

Beilstein J. Nanotechnol. 2021, 12, 808–862, doi:10.3762/bjnano.12.64

Graphical Abstract
PDF
Album
Review
Published 11 Aug 2021

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

Graphical Abstract
  • of GSH was decreased in the case of PVP and AOT coating agents due to either unfavourable steric or electrostatic interactions, respectively. In both ALF and AGF, a significant agglomeration occurred for all three types of AgNPs. Moreover, a significant precipitation, visible in the test vials
  • AgNPs enter the body where they gain a protein corona, aggregate, and dissolve to Ag+. Ionic silver may precipitate in the anion-rich environment of different tissues, where Ag binds to S, resulting in nanocrystals. Aggregation and corona–NP destabilisation can also lead to precipitation. Whole blood
PDF
Album
Supp Info
Full Research Paper
Published 07 Jul 2021

The preparation temperature influences the physicochemical nature and activity of nanoceria

  • Robert A. Yokel,
  • Wendel Wohlleben,
  • Johannes Georg Keller,
  • Matthew L. Hancock,
  • Jason M. Unrine,
  • D. Allan Butterfield and
  • Eric A. Grulke

Beilstein J. Nanotechnol. 2021, 12, 525–540, doi:10.3762/bjnano.12.43

Graphical Abstract
  • are cited in the introduction of [13]. These beneficial results have been obtained with nanoceria prepared by precipitation or solvothermal synthesis. There are many reports of nanoceria synthesis, producing a myriad of products with different physicochemical properties tailored to their application
  • ][21][22][23]. Given that nanoceria prepared for industrial applications, such as NM-212, are typically calcined, it was hypothesized that the low solubility of NM-212 is a product of high-temperature exposure. NM-212 was prepared by precipitation [7][24], but the synthesis process has not been
  • . The amount of surface hydroxy groups decreased as the temperature increased from 200 to 400 °C, with the persistence of some hydroxy groups up to 600 °C [57]. Reports state that NM-212 was prepared by precipitation [7][24], however, the procedures have not been reported to know if it was precipitated
PDF
Album
Supp Info
Full Research Paper
Published 04 Jun 2021

Solution combustion synthesis of a nanometer-scale Co3O4 anode material for Li-ion batteries

  • Monika Michalska,
  • Huajun Xu,
  • Qingmin Shan,
  • Shiqiang Zhang,
  • Yohan Dall'Agnese,
  • Yu Gao,
  • Amrita Jain and
  • Marcin Krajewski

Beilstein J. Nanotechnol. 2021, 12, 424–431, doi:10.3762/bjnano.12.34

Graphical Abstract
  • been proposed including sol–gel methods [4][6][13][14][15], sol–electrospinning techniques [16][17][18][19], hydrothermal and solvothermal syntheses [20][21][22][23][24][25][26][27][28], precipitation and co-precipitation [29][30][31], chemical thermal decomposition and pyrolysis [32][33][34][35][36
PDF
Album
Supp Info
Full Research Paper
Published 10 May 2021

The nanomorphology of cell surfaces of adhered osteoblasts

  • Christian Voelkner,
  • Mirco Wendt,
  • Regina Lange,
  • Max Ulbrich,
  • Martina Gruening,
  • Susanne Staehlke,
  • Barbara Nebe,
  • Ingo Barke and
  • Sylvia Speller

Beilstein J. Nanotechnol. 2021, 12, 242–256, doi:10.3762/bjnano.12.20

Graphical Abstract
  • Osteoblasts are bone-mineralizing cells situated inside the matrix boundaries of the osteoid. They can release matrix vesicles containing calcium and phosphate, eventually leading to precipitation and growth of bone mineral [1][2]. They adhere to and spread on a wide spectrum of pristine and coated material
PDF
Album
Full Research Paper
Published 12 Mar 2021

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

Graphical Abstract
  • processes [143][144][145][146], conventional chemical reduction [147][148][149][150][151], reverse micelle [152][153][154], co-precipitation [155], chemical vapor deposition [156][157][158], solvothermal [159][160][161], and electrochemical reduction [162][163][164][165]. Chemical synthesis methods are
PDF
Album
Review
Published 25 Jan 2021

Bio-imaging with the helium-ion microscope: A review

  • Matthias Schmidt,
  • James M. Byrne and
  • Ilari J. Maasilta

Beilstein J. Nanotechnol. 2021, 12, 1–23, doi:10.3762/bjnano.12.1

Graphical Abstract
PDF
Album
Review
Published 04 Jan 2021

Unravelling the interfacial interaction in mesoporous SiO2@nickel phyllosilicate/TiO2 core–shell nanostructures for photocatalytic activity

  • Bridget K. Mutuma,
  • Xiluva Mathebula,
  • Isaac Nongwe,
  • Bonakele P. Mtolo,
  • Boitumelo J. Matsoso,
  • Rudolph Erasmus,
  • Zikhona Tetana and
  • Neil J. Coville

Beilstein J. Nanotechnol. 2020, 11, 1834–1846, doi:10.3762/bjnano.11.165

Graphical Abstract
  • phyllosilicate can be obtained either by a hydrothermal method or a deposition-precipitation method, the 2:1 nickel phyllosilicate is only formed under hydrothermal conditions [32][33][34]. Recently, several researchers have reported on the generation of nickel phyllosilicate catalysts for hydrogenation
  • . Therefore, in this study we report on the growth of mesoporous SiO2@NiPS and titania-coated mSiO2@NiPS (mSiO2@NiPS/TiO2) core–shell nanostructures using a simple deposition-precipitation method. Transmission electron microscopy (TEM), N2 physisorption analysis, diffuse reflectance UV–visible spectroscopy
  • NiPS nickel phyllosilicate structure Si2Ni3O5(OH)4 [42][43]. Basically, NiPS is formed upon the precipitation of nickel species onto a silica surface after basification of a nickel(II) solution [44]. Depending on the deposition-precipitation time, the molar ratio between urea and nickel precursor, and
PDF
Album
Supp Info
Full Research Paper
Published 09 Dec 2020

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

Graphical Abstract
  • dyes from wastewater such as precipitation (chemical coagulation, flocculation), membrane and electrochemical processes, as well as biological treatment methods [9]. The main disadvantages of these treatment methods are very often incomplete dye removal, high energy consumption and capital cost, and
  • catalytic performance in terms of overall degradation efficiency of the 5.5 nm particles is significantly superior compared to those of similarly sized particles reported. It also much improved when compared with samples free of surface defects synthesized by a previously reported co-precipitation method
  • particles (b) particle size analysis (c) particles synthesized by a previously reported co-precipitation method, avg. size 20 nm (d) bulk material. Absorbance spectra and Tauc plot (inset) for 5.5 nm BiFeO3 nanoparticles. Photocatalytic degradation of RhB as a function of irradiation time under visible
PDF
Album
Supp Info
Full Research Paper
Published 07 Dec 2020

Cardiomyocyte uptake mechanism of a hydroxyapatite nanoparticle mediated gene delivery system

  • Hiroaki Komuro,
  • Masahiro Yamazoe,
  • Kosuke Nozaki,
  • Akiko Nagai and
  • Tetsuo Sasano

Beilstein J. Nanotechnol. 2020, 11, 1685–1692, doi:10.3762/bjnano.11.150

Graphical Abstract
  • regarding safety has attracted significant attention [4][5]. The calcium phosphate (CaP) co-precipitation method has been extensively used for gene delivery due to its excellent biocompatibility and simple preparation [6]. CaP is commonly considered as one of the most important inorganic materials for
PDF
Album
Full Research Paper
Published 05 Nov 2020

Cu2O nanoparticles for the degradation of methyl parathion

  • Juan Rizo,
  • David Díaz,
  • Benito Reyes-Trejo and
  • M. Josefina Arellano-Jiménez

Beilstein J. Nanotechnol. 2020, 11, 1546–1555, doi:10.3762/bjnano.11.137

Graphical Abstract
  • at 80 °C for 30 min under constant stirring. The end of the reaction can be noted by the precipitation of Cu2O. It is important to point out that cupric sulfate and sodium citrate form a cupper–citrate complex noted by an intense blue color. Sodium carbonate was added in order to maintain an alkaline
PDF
Album
Full Research Paper
Published 12 Oct 2020

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

Graphical Abstract
  • , chemical vapor deposition, electrochemical anodization method, hydrolysis, hydrothermal method, precipitation–hydrothermal method, reverse micellar route, sol–gel method, solution-based synthesis, solvothermal synthesis, and the sonochemical method. The most relevant ones, along with the typical resulting
  • intracellularly or in the extracellular milieu, where the biomolecules released from the cells are located. As an example of the latter, Pseudomonas strutzeri bacteria can successfully generate Ag NPs extracellularly [84]. Conversely, the bioreduction of iron followed by the precipitation of an oxide, which is
  • ]. Matsuda et al. (2019) have developed a fluoride-containing ZnO–CuO nanocomposite which inhibited the bacterial growth of Streptococcus mutans, showing a potential use in dental materials [124]. CuO nanorods (110 nm in length and 10 nm in diameter) were obtained by the precipitation process. The
PDF
Album
Review
Published 25 Sep 2020

Magnetic-field-assisted synthesis of anisotropic iron oxide particles: Effect of pH

  • Andrey V. Shibaev,
  • Petr V. Shvets,
  • Darya E. Kessel,
  • Roman A. Kamyshinsky,
  • Anton S. Orekhov,
  • Sergey S. Abramchuk,
  • Alexei R. Khokhlov and
  • Olga E. Philippova

Beilstein J. Nanotechnol. 2020, 11, 1230–1241, doi:10.3762/bjnano.11.107

Graphical Abstract
  • University, Albert-Einstein-Allee 11, 89069 Ulm, Germany 10.3762/bjnano.11.107 Abstract The synthesis of magnetite (Fe3O4) nanorods using reverse co-precipitation of Fe3+ and Fe2+ ions in the presence of a static magnetic field is reported in this work. The phase composition and crystal structure of the
  • cylindrical shape is less favorable due to its higher surface free energy. So far, various methods for the preparation of iron oxide nanorods have been proposed [8][11][23][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46]. These methods include co-precipitation [27][28][29
  • properties is the pH during synthesis. This is due to the fact that the OH− ion concentration in the reaction mixture controls the reaction rate and, therefore, the nanocrystal growth mechanism. For instance, Ahn et al. [31] studied the formation of magnetite nanoparticles by performing co-precipitation
PDF
Album
Supp Info
Full Research Paper
Published 17 Aug 2020

Influence of the magnetic nanoparticle coating on the magnetic relaxation time

  • Mihaela Osaci and
  • Matteo Cacciola

Beilstein J. Nanotechnol. 2020, 11, 1207–1216, doi:10.3762/bjnano.11.105

Graphical Abstract
  • synthesized in small dimensions, which ensures low toxicity and the possibility for easy surface functionalization. A common method for synthesising iron-oxide nanoparticles includes chemical co-precipitation, which involves the simultaneous precipitation of magnetic nanoparticles and a solid matrix through a
  • sol–gel process, yielding metal-oxide nanoparticles dispersed in a mesoporous matrix. [5]. Other methods used for synthesising these nanoparticles include modifications of the sol–gel method. These methods involve supercritical conditions, such as ethyl alcohol and alkaline co-precipitation, and an
PDF
Album
Full Research Paper
Published 12 Aug 2020

Plant growth regulation by seed coating with films of alginate and auxin-intercalated layered double hydroxides

  • Vander A. de Castro,
  • Valber G. O. Duarte,
  • Danúbia A. C. Nobre,
  • Geraldo H. Silva,
  • Vera R. L. Constantino,
  • Frederico G. Pinto,
  • Willian R. Macedo and
  • Jairo Tronto

Beilstein J. Nanotechnol. 2020, 11, 1082–1091, doi:10.3762/bjnano.11.93

Graphical Abstract
  • NAA into ZnAl-LDH (Zn/Al molar ratio = 3.5) by co-precipitation and performed in vitro release studies. The anion release rate depended on the pH value of the medium. From the beginning of the experiment up to 8 h, the release of 23.2% and 22.0% of NAA in solutions of initially pH 1 and pH 7
  • new technology to sowing might lead to better a quality of seeds. Conclusion The synthesis of a NAA-intercalated layered double hydroxide with a molar ratio Zn/Al = 2 by co-precipitation at constant pH value yielded a material with good crystallinity and phase purity. The basal spacing value observed
  • hybrid was synthesized using a co-precipitation method at constant pH value. For the synthesis, 0.03 L of a solution containing 3.84 × 10−3 mol of Zn(NO3)2∙6H2O and 1.92 × 10−3 mol of Al(NO3)3∙9H2O were slowly added to 0.15 L of a solution containing 9.60 × 10−3 mol of NAA. During the synthesis, the
PDF
Album
Supp Info
Full Research Paper
Published 24 Jul 2020

Highly sensitive detection of estradiol by a SERS sensor based on TiO2 covered with gold nanoparticles

  • Andrea Brognara,
  • Ili F. Mohamad Ali Nasri,
  • Beatrice R. Bricchi,
  • Andrea Li Bassi,
  • Caroline Gauchotte-Lindsay,
  • Matteo Ghidelli and
  • Nathalie Lidgi-Guigui

Beilstein J. Nanotechnol. 2020, 11, 1026–1035, doi:10.3762/bjnano.11.87

Graphical Abstract
  • antireflection abilities [13][14][15]. These composite microstructures have also shown to maximize the path of the Raman excitation laser beam within the substrate, leading to signals with higher intensity. Samransuksamer et al. [16] used TiO2 nanorods decorated with Au NPs, deposited via precipitation by
PDF
Album
Full Research Paper
Published 14 Jul 2020

A 3D-polyphenylalanine network inside porous alumina: Synthesis and characterization of an inorganic–organic composite membrane

  • Jonathan Stott and
  • Jörg J. Schneider

Beilstein J. Nanotechnol. 2020, 11, 938–951, doi:10.3762/bjnano.11.78

Graphical Abstract
  • triphosgene were added every 10 min until a clear solution was formed. After 1 h the solution was poured into anhydrous n-pentane under vigorous stirring. The resulting suspension was stored at −28 °C overnight to complete precipitation followed by filtration and repeated recrystallization from anhydrous THF
PDF
Album
Supp Info
Full Research Paper
Published 17 Jun 2020

Multilayer capsules made of weak polyelectrolytes: a review on the preparation, functionalization and applications in drug delivery

  • Varsha Sharma and
  • Anandhakumar Sundaramurthy

Beilstein J. Nanotechnol. 2020, 11, 508–532, doi:10.3762/bjnano.11.41

Graphical Abstract
  • material itself as a core or co-precipitation of encapsulation material within the core. Very few such studies are reported using a weak PE capsule. An anti-inflammatory drug, ibuprofen crystals of 5–40 µm in size, were encapsulated by chitosan/DS and chitosan/carboxymethyl cellulose multilayers [65]. The
  • porous nature. They can encapsulate both hydrophilic as well as hydrophobic compounds. The encapsulation of proteins in such porous structures can be done by either adsorbing model protein into core particles before PE multilayer deposition [77] or co-precipitation of protein molecules during the
  • polymeric structure [87]. The pH control helped the self-assembled capsules in precipitation and dissolution by trapping of guest molecules inside. Furthermore, it led to a new strategy involving hydrogen bonding and carbamate chemistry (between carbon dioxide and amines) which resulted in supramolecular
PDF
Album
Review
Published 27 Mar 2020

Interfacial charge transfer processes in 2D and 3D semiconducting hybrid perovskites: azobenzene as photoswitchable ligand

  • Nicole Fillafer,
  • Tobias Seewald,
  • Lukas Schmidt-Mende and
  • Sebastian Polarz

Beilstein J. Nanotechnol. 2020, 11, 466–479, doi:10.3762/bjnano.11.38

Graphical Abstract
  • precipitation was centrifuged, washed three times with 3 mL DCM/acetone and dried under reduced pressure. The samples were kept under nitrogen atmosphere to prevent decomposition. Synthesis of functionalized 3D perovskite particles For the material synthesis of 3D perovskite particles, a 1.0 M PbBr2 stock
PDF
Album
Supp Info
Full Research Paper
Published 17 Mar 2020

Synthesis and enhanced photocatalytic performance of 0D/2D CuO/tourmaline composite photocatalysts

  • Changqiang Yu,
  • Min Wen,
  • Zhen Tong,
  • Shuhua Li,
  • Yanhong Yin,
  • Xianbin Liu,
  • Yesheng Li,
  • Tongxiang Liang,
  • Ziping Wu and
  • Dionysios D. Dionysiou

Beilstein J. Nanotechnol. 2020, 11, 407–416, doi:10.3762/bjnano.11.31

Graphical Abstract
  • functional mineral material for accepting the photogenerated e− due to its special electric field. Herein, we report the successful synthesis of the CuO/tourmaline composite photocatalyst with 0D/2D CuO geometric structure by a facile precipitation–hydrothermal process. This work firstly highlights a simple
PDF
Album
Supp Info
Full Research Paper
Published 02 Mar 2020

Facile biogenic fabrication of hydroxyapatite nanorods using cuttlefish bone and their bactericidal and biocompatibility study

  • Satheeshkumar Balu,
  • Manisha Vidyavathy Sundaradoss,
  • Swetha Andra and
  • Jaison Jeevanandam

Beilstein J. Nanotechnol. 2020, 11, 285–295, doi:10.3762/bjnano.11.21

Graphical Abstract
  • nontoxicity, worldwide availability and low production cost of cuttlefish bone products makes them an excellent calcium carbonate precursor for the fabrication of hydroxyapatite. In the present study, a novel oil-bath-mediated precipitation method was introduced for the synthesis of hydroxyapatite (Hap
  • literature that synthetic and conventional Hap has been prepared by various chemical procedures such as hydrothermal, sol–gel, mechanochemical, reverse microemulsion and precipitation methods, and the resulting material has been proposed to be highly beneficial in hard tissue treatments [3][4][5]. However
  • porosity and high surface-to-volume ratio when compared to spherical nanometer-sized Hap particles, which facilitates interconnectivity and improves targeted cell internalization efficiency [22]. Thus, the aim of the present work is to use a simple, facile, unique, safe and cost-effective precipitation
PDF
Album
Full Research Paper
Published 04 Feb 2020

The different ways to chitosan/hyaluronic acid nanoparticles: templated vs direct complexation. Influence of particle preparation on morphology, cell uptake and silencing efficiency

  • Arianna Gennari,
  • Julio M. Rios de la Rosa,
  • Erwin Hohn,
  • Maria Pelliccia,
  • Enrique Lallana,
  • Roberto Donno,
  • Annalisa Tirella and
  • Nicola Tirelli

Beilstein J. Nanotechnol. 2019, 10, 2594–2608, doi:10.3762/bjnano.10.250

Graphical Abstract
  • Sigma-Aldrich (Gillingham, UK) and purified prior to use as previously described (boiling in 2% acetic acid, filtration, precipitation with NaOH, ultrafiltration and freeze drying) [16]. Chitosan with = 36 kDa and a DD = 85% (hereafter referred to as Chit35 or low-MW chitosan) was obtained by oxidative
PDF
Album
Supp Info
Full Research Paper
Published 30 Dec 2019

Formation of metal/semiconductor Cu–Si composite nanostructures

  • Natalya V. Yumozhapova,
  • Andrey V. Nomoev,
  • Vyacheslav V. Syzrantsev and
  • Erzhena C. Khartaeva

Beilstein J. Nanotechnol. 2019, 10, 2497–2504, doi:10.3762/bjnano.10.240

Graphical Abstract
  • precipitation of the powder. The composite nanoparticle vapour, passing into the chamber (9) through the pipe (8), is deposited on the filter (10). Simulation Technique For the simulations, we used the molecular dynamics method, in which the matter is considered at the atomic level without explicitly taking
PDF
Album
Full Research Paper
Published 13 Dec 2019

Microfluidics as tool to prepare size-tunable PLGA nanoparticles with high curcumin encapsulation for efficient mucus penetration

  • Nashrawan Lababidi,
  • Valentin Sigal,
  • Aljoscha Koenneke,
  • Konrad Schwarzkopf,
  • Andreas Manz and
  • Marc Schneider

Beilstein J. Nanotechnol. 2019, 10, 2280–2293, doi:10.3762/bjnano.10.220

Graphical Abstract
  • mix solutions under laminar flow conditions, ensuring controlled precipitation and short mixing times. Moreover, the microfluidic approach revealed a higher encapsulation of the lipophilic curcumin into PLGA. Using microfluidics, ≈67.15% of the curcumin was encapsulated while the average encapsulation
PDF
Album
Full Research Paper
Published 19 Nov 2019

Targeted therapeutic effect against the breast cancer cell line MCF-7 with a CuFe2O4/silica/cisplatin nanocomposite formulation

  • B. Rabindran Jermy,
  • Vijaya Ravinayagam,
  • Widyan A. Alamoudi,
  • Dana Almohazey,
  • Hatim Dafalla,
  • Lina Hussain Allehaibi,
  • Abdulhadi Baykal,
  • Muhammet S. Toprak and
  • Thirunavukkarasu Somanathan

Beilstein J. Nanotechnol. 2019, 10, 2217–2228, doi:10.3762/bjnano.10.214

Graphical Abstract
  • layers in the mixed metal oxide spinel composite. CuFe2O4 composite formation with activated carbon was reported using the co-precipitation technique [12][13]. Herein, we have prepared a nanocomposite comprised of CuFe2O4 and monodispersed spherical hydrophilic silica (HYPS) particles (Scheme 1) for
PDF
Album
Supp Info
Full Research Paper
Published 12 Nov 2019
Other Beilstein-Institut Open Science Activities