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

• ) is one of the most stable forms of CaP, and diverse methods for preparing HAp nanoparticles have been reported. Among these methods, the microemulsion method has the advantage of controlling the spherical-like morphology and the size of nanoparticles by using a surfactant solution [11][12]. Therefore

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

• applicability of the magnetic nanoparticles. In this regard, the optimized microemulsion method can be used to obtain a homogenous silica coating on Fe3−xO4 nanoparticles [14]. This method controls the thickness of the coating layer, enabling a higher average separation among particles when compared to the

Coating of upconversion nanoparticles with silica nanoshells of 5–250 nm thickness

• Cynthia Kembuan,
• Maysoon Saleh,
• Bastian Rühle,
• Ute Resch-Genger and
• Christina Graf

Beilstein J. Nanotechnol. 2019, 10, 2410–2421, doi:10.3762/bjnano.10.231

• microemulsion method. The Stöber method refers to the process of preparing silica via the hydrolysis and condensation of tetraethyl orthosilicate (TEOS) within an alcohol–ammonia–water system [25]. Related methods are widely used for coating NPs that are dispersible in polar media [26][27]. Modified Stöber

• nm by a similar procedure [23]. In this work, we present an approach for growing a silica shell with an adjustable thickness between 5 and 250 nm onto oleate-coated NaYF4:Yb3+/Er3+ UCNP. This coating procedure comprises the growth of a silica shell via a reverse microemulsion method to shell

• Supporting Information File 1). Overall, the growth of a silica shell with the reverse microemulsion method initially decreased the colloidal stability of the particles, as shown by the diameter of the UCNPs as determined by TEM and the deviating z-average and low zeta potential values. The particle

A highly efficient porous rod-like Ce-doped ZnO photocatalyst for the degradation of dye contaminants in water

• Binjing Hu,
• Qiang Sun,
• Chengyi Zuo,
• Yunxin Pei,
• Siwei Yang,
• Hui Zheng and
• Fangming Liu

Beilstein J. Nanotechnol. 2019, 10, 1157–1165, doi:10.3762/bjnano.10.115

• decarboxylation. Generally, zinc oxide materials can be synthesized via a hydrothermal process [18], sol–gel method [19], microemulsion method [20], among others. Due to its narrow band, the application of zinc oxide is limited, thus it is common to modify ZnO using rare-earth ions [9]. Koao et al. [21

Enhanced antineoplastic/therapeutic efficacy using 5-fluorouracil-loaded calcium phosphate nanoparticles

• Shanid Mohiyuddin,
• Saba Naqvi and
• Gopinath Packirisamy

Beilstein J. Nanotechnol. 2018, 9, 2499–2515, doi:10.3762/bjnano.9.233

• MCF-7 cells [21]. Herein we report the synthesis of calcium phosphate nanoparticles loaded with 5-FU (CaP@5-FU NPs) with the goal of demonstrating enhanced efficacy in lung and colorectal cancer treatment in cell lines. The simple and reproducible reverse micellar microemulsion method was employed for

• were prepared by a reverse micelle microemulsion method. The highly monodisperse nanoparticles were synthesized and subsequently validated by the presence of phosphate ester bonds in FTIR analysis and again the presence of the hydroxyapatite peak in the XRD analysis confirmed their successful formation

Cryochemical synthesis of ultrasmall, highly crystalline, nanostructured metal oxides and salts

• Elena A. Trusova and
• Nikolai S. Trutnev

Beilstein J. Nanotechnol. 2018, 9, 1755–1763, doi:10.3762/bjnano.9.166

• NiO nanocrystals (4.1–4.7 nm) incorporated into the pore space of mesoporous titanium silicate [13]. We developed a method for the preparation of ultradispersed NiO based on the combination of the microemulsion method and cryochemical technology. NiO crystallites were obtained by cryotreatment of the

Closed polymer containers based on phenylboronic esters of resorcinarenes

• Tatiana Yu. Sergeeva,
• Rezeda K. Mukhitova,
• Irek R. Nizameev,
• Marsil K. Kadirov,
• Polina D. Klypina,
• Albina Y. Ziganshina and
• Alexander I. Konovalov

Beilstein J. Nanotechnol. 2018, 9, 1594–1601, doi:10.3762/bjnano.9.151

• were introduced at the upper rim of the macrocycle using the procedure described previously [39]. The microemulsion method was applied to obtain p(SRA-B). Mixing an aqueous solution of SRA (2.5 mM), phenylboronic acid (BA, 5 mM) with styrene (0.5–3 vol %) and potassium carbonate (pH 10.2) results in

Understanding the performance and mechanism of Mg-containing oxides as support catalysts in the thermal dry reforming of methane

• Nor Fazila Khairudin,
• Mohd Farid Fahmi Sukri,
• Mehrnoush Khavarian and
• Abdul Rahman Mohamed

Beilstein J. Nanotechnol. 2018, 9, 1162–1183, doi:10.3762/bjnano.9.108

• material supported on alumina via the reverse microemulsion method and impregnation method in a comparative study. Mg was proven to stabilize Ni on the catalyst surface by preventing the diffusion of Ni particles into the alumina lattice, indirectly suppressing carbon deposition. Table 4 shows the average

• particle size of Ni and carbon content in the catalysts after the reaction. The NiMg/Al2O3 catalyst synthesized using the microemulsion method recorded a lower particle size (16 nm) and carbon content (0.5 wt %) compared with that of the NiMg/Al2O3 catalyst prepared via the impregnation method (20 nm for

• different, at 0.66–0.67. In terms of the preparation method, the reverse microemulsion method was preferable for the DRM process, owing to the good activity and stability of the catalyst, which minimized carbon deposition and caused considerable interaction between Ni and Mg. Macedo Neto et al. [120

Bright fluorescent silica-nanoparticle probes for high-resolution STED and confocal microscopy

• Isabella Tavernaro,
• Christian Cavelius,
• Henrike Peuschel and
• Annette Kraegeloh

Beilstein J. Nanotechnol. 2017, 8, 1283–1296, doi:10.3762/bjnano.8.130

• this work, we report on the detailed synthesis and characterisation of NIR dye-labelled silica nanoparticles with sizes of 15 to 80 nm. Since most of the syntheses in this size-regime, which are based on the Stöber method or the microemulsion method, require harsh conditions and yield only particles

Silica-coated upconversion lanthanide nanoparticles: The effect of crystal design on morphology, structure and optical properties

• Uliana Kostiv,
• Miroslav Šlouf,
• Hana Macková,
• Alexander Zhigunov,
• Hana Engstová,
• Katarína Smolková,
• Petr Ježek and
• Daniel Horák

Beilstein J. Nanotechnol. 2015, 6, 2290–2299, doi:10.3762/bjnano.6.235

• + nanoparticles were separated by centrifugation, washed three times with hexane and deionized water and transferred in hexane. Synthesis of silica-coated upconversion nanoparticles The surfaces of the OM–NaYF4:Yb3+/Er3+ nanoparticles were coated with silica using a reverse microemulsion method [28] with slight

• successfully coated with a silica shell using the reverse microemulsion method, making them dispersible in water and promising candidates for applications in biology and medicine. TEM micrographs of OM-NaYF4:Yb3+/Er3+ nanoparticles prepared at (a) 250, (b) 300 and (c) 350 °C for 1 h. Particle size distribution

Silica micro/nanospheres for theranostics: from bimodal MRI and fluorescent imaging probes to cancer therapy

• Shanka Walia and
• Amitabha Acharya

Beilstein J. Nanotechnol. 2015, 6, 546–558, doi:10.3762/bjnano.6.57

• magnetically active and, thus, were used extensively for designing multimodal imaging probes. Wu et al. [14] reported a simple reverse microemulsion method and coating process to synthesize silica-coated Gd2(CO3)3:Tb NPs. The synthesis was accomplished by using GdCl3 as a source of the Gd-complex and cetyl

• (organic chromphore)–DTPA (chelate), through an water-in-oil microemulsion method. The average diameter of the prepared NPs was found to be 71 ± 4 nm with a silica core of 49 ± 3 nm as observed by TEM studies. The emission spectra of the nanocomposites displayed two peaks with Pas–DTPA at 545 and Ru(bpy

• followed by Chen et al. [36]. 2.6 Iron oxide as magnetic and QDs as fluorescent probe He et al. [37] reported a reverse microemulsion method for the synthesis of core–shell fluorescent magnetic silica-coated NPs. The Fe3O4 NPs were prepared by using FeCl3 and FeSO4 salts following co-precipitation method

Effects of the preparation method on the structure and the visible-light photocatalytic activity of Ag₂CrO₄

• Difa Xu,
• Shaowen Cao,
• Jinfeng Zhang,
• Bei Cheng and
• Jiaguo Yu

Beilstein J. Nanotechnol. 2014, 5, 658–666, doi:10.3762/bjnano.5.77

• activity of the prepared Ag2CrO4was highly dependent on the preparation methods. The sample prepared by microemulsion method exhibits the highest photocatalytic efficiency on the degradation of methylene blue (MB) under visible-light irradiation. The enhanced photocatalytic activity could be ascribed to

• . Considering the universalities of microemulsion, precipitation, and hydrothermal methods, this work may also provide a prototype for the comparative study of semiconductor based photocatalysis for water purification and environmental remediation. Keywords: microemulsion method; nanoparticles; photocatalysis

• , Triton X-100 serves as a nonionic surfactant in the W/O reverse microemulsion system to avoid the introduction of ionic impurities. These results suggest that the microemulsion method is superior for preparing Ag2CrO4 nanoparticles with homogenous distribution, as compared to the precipitation and