Search results
Search for "microemulsion" in Full Text gives 36 result(s) in Beilstein Journal of Nanotechnology.
A formulation containing Cymbopogon flexuosus essential oil: improvement of biochemical parameters and oxidative stress in diabetic rats
Beilstein J. Nanotechnol. 2025, 16, 617–636, doi:10.3762/bjnano.16.48
- bactericidal, antiviral, antifungal, antioxidant, and hypoglycemic effects. Therefore, this study aims to obtain a microemulsified formulation containing the essential oil of Cymbopogon flexuosus (EOCF) and to evaluate its antioxidant and antidiabetic activity in diabetic rats. The microemulsion (ME) was
- . Additionally, the ME was able to provide additional benefits, such as reduced liver damage, improved renal function, reduced systemic inflammation, and increased high-density lipoprotein levels. Overall, the results show that EOCF was efficiently incorporated into the microemulsion, improving its antioxidant
- activity and showing promising results for use in the treatment of DM via the oral route. Keywords: diabetes mellitus; essential oil; lemongrass; microemulsion; Introduction Diabetes mellitus (DM) is one of the main public health problems. It affects around 463 million people worldwide, and it could
A nanocarrier containing carboxylic and histamine groups with dual action: acetylcholine hydrolysis and antidote atropine delivery
Beilstein J. Nanotechnol. 2025, 16, 11–24, doi:10.3762/bjnano.16.2
- delivering an antidote (i.e., atropine) and functions as a synthetic esterase to hydrolyze acetylcholine. The nanocarrier was synthesized through microemulsion polycondensation of phenylboronic acid with resorcinarenes containing hydroxy, imidazole, and carboxylic groups on the upper rim. The nanocarrier
- diverse receptors and sensors, notably for ACh [23][24][25][26][27]. Here, we report the development of a new nanocarrier that can both carry Atr and act as a synthetic esterase to degrade excess ACh. The nanocarrier was synthesized via microemulsion polycondensation of phenylboronic acid with
- present in Figures S1 and S2 of Supporting Information File 1. The nanocarrier (p(Hist-CA)) was prepared, using the microemulsion technique [32][33], through the condensation of CA-RA and Hist-RA with phenylboronic acid (BA) in phosphate buffer (PB) at pH 8.5 [34][35]. CA-RA and Hist-RA are amphiphilic
Recent updates in applications of nanomedicine for the treatment of hepatic fibrosis
Beilstein J. Nanotechnol. 2024, 15, 1105–1116, doi:10.3762/bjnano.15.89
- into the solid lipid NPs using the microemulsion-probe ultrasound method, while mannose 6-phosphate was conjugated to albumin. The mannose 6-phosphate-conjugated albumin was then decorated onto the surface of matrine-loaded solid lipid NPs, and its HSC-targeting efficiency was evaluated in vitro and in
Unveiling the potential of alginate-based nanomaterials in sensing technology and smart delivery applications
Beilstein J. Nanotechnol. 2024, 15, 1077–1104, doi:10.3762/bjnano.15.88
- and polymer in the presence of divalent ions such as calcium or zinc. The microemulsion protocol is another technique that can be used to prepare alginate nanoparticles. The hydrogel formation method is yet another method for preparing alginate–polymer nanoparticles [56]. Another method for preparing
Nanomedicines against Chagas disease: a critical review
Beilstein J. Nanotechnol. 2024, 15, 333–349, doi:10.3762/bjnano.15.30
- pharmaceutical technology such as lyophilization, micrometerization, microemulsion, the inclusion of surfactants, solid dispersion, and the use of complexing agents such as cyclodextrins, Zer-Os tablet innovation, soft gels, and triglas [32]. Nanomedicines can also be used to increase the oral bioavailability of
Curcumin-loaded nanostructured systems for treatment of leishmaniasis: a review
Beilstein J. Nanotechnol. 2024, 15, 37–50, doi:10.3762/bjnano.15.4
- 120.4 ± 7.7 nm and displayed a good stability profile over 73 days. The in vivo studies demonstrated that after two weeks of treatment, BALB/c mice infected with L. amazonensis showed a decrease in paw lesions (about two-fold) in response to microemulsion, compared to the untreated group. Additionally
Comprehensive review on ultrasound-responsive theranostic nanomaterials: mechanisms, structures and medical applications
Beilstein J. Nanotechnol. 2021, 12, 808–862, doi:10.3762/bjnano.12.64
Cardiomyocyte uptake mechanism of a hydroxyapatite nanoparticle mediated gene delivery system
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
High-responsivity hybrid α-Ag2S/Si photodetector prepared by pulsed laser ablation in liquid
Beilstein J. Nanotechnol. 2020, 11, 1596–1607, doi:10.3762/bjnano.11.142
- hydrothermal methods, chemical bath deposition, laser ablation in liquid reverse microemulsion, electrospinning, sol–gel, electrochemical method, template method, sonochemical method, and hydrochemical bath deposition [10][11][12][13]. The size of Ag2S NPs depends on the preparation conditions [14]. Ag2S NPs
Antimicrobial metal-based nanoparticles: a review on their synthesis, types and antimicrobial action
Beilstein J. Nanotechnol. 2020, 11, 1450–1469, doi:10.3762/bjnano.11.129
- , which involves the reaction of an organic chemical with water, has been used to obtain ellipsoidal monocrystallites of CeO2 with an average size of ≈7 nm [48][49]. The reverse micelle technique, also known as the microemulsion technique, is used to synthesize nanoparticles of various materials with
Influence of the magnetic nanoparticle coating on the magnetic relaxation time
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
Facile biogenic fabrication of hydroxyapatite nanorods using cuttlefish bone and their bactericidal and biocompatibility study
Beilstein J. Nanotechnol. 2020, 11, 285–295, doi:10.3762/bjnano.11.21
- 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
Coating of upconversion nanoparticles with silica nanoshells of 5–250 nm thickness
Beilstein J. Nanotechnol. 2019, 10, 2410–2421, doi:10.3762/bjnano.10.231
- + upconversion nanoparticles (UCNP) is presented. The concept enables the precise adjustment of shell thicknesses for the preparation of thick-shelled nanoparticles for applications in plasmonics and sensing. First, an initial 5–11 nm thick shell is grown onto the UCNPs in a reverse microemulsion. This is
- -core particles are obtained. This strategy can be easily transferred to other nanomaterials for the design of plasmonic nanoconstructs and sensor systems. Keywords: reverse microemulsion; silica coating; stepwise growth; thick shells; upconversion nanoparticles; Introduction Lanthanide-based
- 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
A highly efficient porous rod-like Ce-doped ZnO photocatalyst for the degradation of dye contaminants in water
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
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
- the synthesis of CaP@5-FU NPs. Results and Discussion Synthesis of CaP@5-FU NPs The microemulsion reverse micelle method [12] was adopted for the effective synthesis of calcium phosphate nanoparticles. Furthermore, in situ loading of the anticancer drug (5-FU) during the synthesis yielded efficient
- uniformly dispersed in oil, forming a water-in-oil (W/O) microemulsion system [24]. Highly monodisperse, stable, size controllable and chemically reproducible nanoparticles can be formed by adopting the aforementioned method. The anionic surfactant (AOT) in the organic solvent forms the oil dispersion media
Cryochemical synthesis of ultrasmall, highly crystalline, nanostructured metal oxides and salts
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
- that of the same composition prepared directly from an as-prepared microemulsion. In [14] we reported on a method for producing metal oxides (CeO2, Fe2O3 and NiO) with a crystallite size less than ≤10 nm by a combination of the sol–gel method and cryotechnology. The essence of the method is to create
Closed polymer containers based on phenylboronic esters of resorcinarenes
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
- the formation of a microemulsion in which SRA and BA are located at the oil–water interface (Scheme 2). The charged sulfonate groups of SRA are directed into the water phase while the tails in the low rim are pointed to BA in the oil phase. The microemulsion was held for 12 h at 100 °C in order to
Understanding the performance and mechanism of Mg-containing oxides as support catalysts in the thermal dry reforming of methane
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
- 71% at a reaction temperature of 700 °C. The NiMg/Al2O3 catalyst synthesized via reverse microemulsion showed a CH4 conversion of 58%, which was higher than that of the catalyst prepared via other methods. The obtained ratios of H2/CO for the catalysts prepared using both methods were not markedly
Evaluating the toxicity of TiO2-based nanoparticles to Chinese hamster ovary cells and Escherichia coli: a complementary experimental and computational approach
Beilstein J. Nanotechnol. 2017, 8, 2171–2180, doi:10.3762/bjnano.8.216
- /Pd-TiO2 nanoparticles Titania (TiO2) modified with nanoparticles was obtained by hydrolysis of TIP in a water/AOT/cyclohexane microemulsion containing Au and Pd precursors in water cores. Mixing was carried out for 1 h under nitrogen; Au and Pd were then reduced by dropwise addition of a
- microemulsion containing the reducing agent (hydrazine). Titanium isopropoxide was added into the microemulsion system containing Au and Pd nanoparticles. The microemulsions were mixed and purged with nitrogen for 24 h and the obtained precipitate was washed, dried and calcined for 3 h at different temperatures
Fabrication of carbon nanospheres by the pyrolysis of polyacrylonitrile–poly(methyl methacrylate) core–shell composite nanoparticles
Beilstein J. Nanotechnol. 2017, 8, 1897–1908, doi:10.3762/bjnano.8.190
- inhibit the production of secondary PMMA nanoparticles – thus realizing the selective growth of the PMMA layer on the PAN seed. Hu et al. [40] reported the synthesis of PAN–PMMA latex at a total monomer concentration of 138 g/L and a surfactant content of 10.9% by a differential microemulsion
Low-temperature CO oxidation over Cu/Pt co-doped ZrO2 nanoparticles synthesized by solution combustion
Beilstein J. Nanotechnol. 2017, 8, 1546–1552, doi:10.3762/bjnano.8.156
- milling, precipitation, combustion, and reverse microemulsion [30][31][32][33]. Vahidshad et al. [34] synthesized sol–gel-derived Cu–ZrO2 nanoparticles. Similarly, Saha et al. [35] prepared CuO-doped ZrO2 nanoparticles via ball milling. Among the described methods, solution combustion is used frequently
Calcium fluoride based multifunctional nanoparticles for multimodal imaging
Beilstein J. Nanotechnol. 2017, 8, 1484–1493, doi:10.3762/bjnano.8.148
- ionic substitutions can also be integrated in the CaF2 lattice [24]. Various methods have been reported for the preparation of rare-earth doped CaF2 NPs such as co-precipitation [14][15][24][25][26], hydrothermal methods [27][28][29], flame synthesis [30], microemulsion methods [31][32] and a
Fabrication of hierarchically porous TiO2 nanofibers by microemulsion electrospinning and their application as anode material for lithium-ion batteries
Beilstein J. Nanotechnol. 2017, 8, 1297–1306, doi:10.3762/bjnano.8.131
- -nozzle microemulsion electrospinning (ME-ES) method followed by calcining. The experimental results indicated that TiO2 nanofibers with the higher TBT/paraffin oil ratio demonstrated more axially aligned channels and a larger specific surface area. Furthermore, they presented superior lithium-ion storage
- batteries; microemulsion electrospinning (ME-ES); multichannel; Introduction The increasing demand for energy has heightened the need for the development of renewable resources because fossil fuels, which are currently the most common energy resources, are a finite resource [1][2][3][4]. Battery industry
- without the need of a complex spinneret. It is a simple and versatile way to prepare nanofibers with hollow or multichannel structures [26]. More importantly, various inorganic nanofibers can be fabricated easily by ME-ES including TiO2, SiO2, ZrO2, SnO2, V2O5, GeO2 and Al2O3. A microemulsion system was
Bright fluorescent silica-nanoparticle probes for high-resolution STED and confocal microscopy
Beilstein J. Nanotechnol. 2017, 8, 1283–1296, doi:10.3762/bjnano.8.130
- or reverse microemulsion synthesis [34]. Using the traditional sol–gel synthesis of silica particles described by Stöber et al. [35], particles are available in the size range of a few tens of nanometres up to the micrometre range. Although the Stöber method can be utilised to obtain particles with a
- 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
The longstanding challenge of the nanocrystallization of 1,3,5-trinitroperhydro-1,3,5-triazine (RDX)
Beilstein J. Nanotechnol. 2017, 8, 452–466, doi:10.3762/bjnano.8.49
- colloid. This technique was also applied on HMX [17] with a particle size around 30 nm and the same conclusions were drawn. Bayat et al. [18], through an optimization of the microemulsion process, crystallized 80 nm plate-like β-CL-20 particles. The severe agglomeration and plate-like morphology could be
- due to the freeze drying and washing of the microemulsion. Gao et al. [19] recrystallized 1,1-diamino-2,2-dinitroethene (FOX7) in ethyl alcohol down to the sub-micrometer range. SEM pictures show an irregular plate-like morphology and therefore highlight the inconsistency of the unique mean particle
Other Beilstein-Institut Open Science Activities
