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Search for "core–shell" in Full Text gives 238 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.
Enhancing mechanical properties of chitosan/PVA electrospun nanofibers: a comprehensive review
Beilstein J. Nanotechnol. 2025, 16, 286–307, doi:10.3762/bjnano.16.22
- fabricate multicomponent fibers, where a single nozzle is partitioned into separate chambers, with the most popular technique being the coaxial electrospinning. Coaxial electrospinning involves the use of a compound coannular nozzle to fabricate core–shell fibers [90][91][92]. For a two-solution system, the
- solution with better electrospinning capability, will assist in the entrainment of the core fluid to form core–shell fiber jets. Three-material core–sheath fibers are reported to have been successfully electrospun using triaxial nozzles [94]. Other design variants include having multiple nozzles enclosed
- coaxial electrospinning in which spinneret is conceptualized as two half-cylindrical nozzles joined together. The fibers formed from the process are attached side-by-side instead of a core–shell structure. Figure 8 illustrates the different types of fibers formed using multichamber nozzles. Emulsion
Fabrication of hafnium-based nanoparticles and nanostructures using picosecond laser ablation
Beilstein J. Nanotechnol. 2024, 15, 1639–1653, doi:10.3762/bjnano.15.129
- different liquid media, namely, deionised water (DW), toluene, and anisole, to fabricate HfO2 and HfC NPs along with Hf NSs. Spherical HfO2 NPs and nanofibres were formed when Hf was ablated in DW. Hf ablated in toluene and anisole demonstrated the formation of core–shell NPs of HfC with a graphitic shell
- and HfC in toluene and anisole can be attributed to chemical interactions between the ablated Hf atoms and the liquid medium. Careful observation of high-resolution TEM images revealed the formation of core–shell structures for the particles obtained in anisole and toluene (Figure 4b,c). In contrast
- [11][31] did not discuss the formation of graphite shells around HfC NPs. The formation of polycrystalline HfC core–shell NPs with graphite shells similar to [36] in toluene and anisole can be explained by the possible reaction of carbon from decomposed surrounding liquid with Hf4+ ions in the plasma
Polymer lipid hybrid nanoparticles for phytochemical delivery: challenges, progress, and future prospects
Beilstein J. Nanotechnol. 2024, 15, 1473–1497, doi:10.3762/bjnano.15.118
- the nanocarrier and can reduce systemic toxicity [49]. Core–shell type hollow PLHNPs The core–shell type hollow PLHNPs comprise an inner hollow positively charged lipidic core, a polymeric layer in the middle, and an outer PEG lipoidal layer [50]. The inner hollow core of the system is filled with
- circulation and is rapidly eliminated from the body. Therefore, RVT exhibits a very short plasma half-life and very low oral bioavailability These factors significantly reduce its therapeutic efficacy [106][107]. In a study, Kumar et al. fabricated RVT-encapsulated core–shell-type PLHNPs (RVT-PLHNPs) for
Nanotechnological approaches for efficient N2B delivery: from small-molecule drugs to biopharmaceuticals
Beilstein J. Nanotechnol. 2024, 15, 1400–1414, doi:10.3762/bjnano.15.113
- . Lipid–polymer hybrid NPs are core–shell structures with a polymeric core and lipidic coat [122]. While drug loading and permeability are regulated by the lipidic coat, the polymeric core determines the release properties of the NPs [123]. Lecithin (lipid)–chitosan (polymer) NPs have been studied for N2B
- irradiation increased the mRNA expression in the cytoplasm [160]. In addition to polyplexes, lipoplexes, another widely used vector, have also been studied for siRNA delivery. For instance, Hu et al. described the encapsulation of siRNA (specifically of c-Myc-targeting siRNA) in a core–shell lipoplex for
- modification with PEG and RVG29 improved the intranasal delivery of the NPs [163]. Li et al. also worked on RVG29 and developed core–shell lesion-recognizing NPs consisting of RVG29 peptide-modified mesenchymal stem cell-derived exosomes as the shell and a reactive oxygen species-responsive polymer loaded with
Realizing active targeting in cancer nanomedicine with ultrasmall nanoparticles
Beilstein J. Nanotechnol. 2024, 15, 1208–1226, doi:10.3762/bjnano.15.98
- ][156][157][158][159]; and Table 2 provides a quantitative assessment of tumor uptake for actively targeted usNPs compared to control groups, limited to studies including quantitative values of % ID/g. 5.1 Folic acid ligand/folate receptor Wu et al. developed core–shell silica NPs (Cornell dots, or C
Recent progress on field-effect transistor-based biosensors: device perspective
Beilstein J. Nanotechnol. 2024, 15, 977–994, doi:10.3762/bjnano.15.80
- nanotube junctionless surrounding heterogate structure combined with junctionless concept, and tunnel mechanism of carrier transport [60] in comparison with other conventional metal gate TFET-biosensors, such as core–shell junctionless TFET (CS NT JL TFET)-based biosensors [62] and PKD TFET-based
Therapeutic effect of F127-folate@PLGA/CHL/IR780 nanoparticles on folate receptor-expressing cancer cells
Beilstein J. Nanotechnol. 2024, 15, 954–964, doi:10.3762/bjnano.15.78
- ]. It has been found that PLGA may co-encapsulate a range of hydrophobic and hydrophilic compounds, which, because of the core–shell structures, boosts their therapeutic anti-tumor activity [1][2][3][11][26][27][28][29][30][31][32][33]. In this study, we would want to combine all of the advantages of
Electrospun nanofibers: building blocks for the repair of bone tissue
Beilstein J. Nanotechnol. 2024, 15, 941–953, doi:10.3762/bjnano.15.77
- production. With a coaxial needle design, two different solutions can be electrospun simultaneously, and core–shell or hollow fibers can be formed [47]. The main parameters affecting fiber morphology are described in the following. Process parameters Flow rate, voltage, distance, collector type
- ][90]. In cases where the burst effect is not desired, hydrophobic polymer blends need to be used. Furthermore, either core–shell or laminated nanofibers can be produced [32][91]. The degradation of polymers, the diffusion of the active material, or both of them may affect the extended release phase
A review on the structural characterization of nanomaterials for nano-QSAR models
Beilstein J. Nanotechnol. 2024, 15, 854–866, doi:10.3762/bjnano.15.71
- [41]. Similarly, categories for the ligands are used in a quasi-SMILES-related model for single core–shell quantum dots [55]. Alternatively, other authors combined all components in a single fingerprint without differentiating the composition of core and coating [32]. Size and nanoshape (c): The most
Synthesis of silver–palladium Janus nanoparticles using co-sputtering of independent sources: experimental and theorical study
Beilstein J. Nanotechnol. 2024, 15, 808–816, doi:10.3762/bjnano.15.67
- evaporated concurrently in the aggregation region, which results in the formation of nanoparticles with a variety of structural motifs, such as randomly alloyed, core–shell, and Janus nanoparticles [2]. The study of bimetallic nanoparticles (BNPs) is highly interesting for the scientific community because of
- promote twin proliferation, which favored the production of Pd−Au Janus icosahedra. In the same experimental setup, they also promoted twin elongation, which aided the production anisotropic Pd@Au core–shell starfish-like structures. As it is known, icosahedral nanoparticles are formed by 20 tetrahedral
Laser synthesis of nanoparticles in organic solvents – products, reactions, and perspectives
Beilstein J. Nanotechnol. 2024, 15, 638–663, doi:10.3762/bjnano.15.54
- ][101][153][154], depending on the metal’s properties (i.e., carbon affinity). Zhang et al. researched the metal’s influence on the formed carbon species by ablation of 16 different transition metals in acetone and categorized the obtained core–shell structures into three classes depending on the
Aero-ZnS prepared by physical vapor transport on three-dimensional networks of sacrificial ZnO microtetrapods
Beilstein J. Nanotechnol. 2024, 15, 490–499, doi:10.3762/bjnano.15.44
- aero-semiconductor materials [11][12][13][14][15][16][17][18], including aero-ZnS materials [16]. The HVPE installation consists of two chambers. In the first chamber, ZnS/ZnO core–shell structures are grown through transporting vapors from the CdS powder source to the ZnO substrate by a H2 flow. The
- final ZnS aero-semiconductor material is produced in the second chamber by heating the ZnS/ZnO core–shell structures in a H2 atmosphere. Thus, the sacrificial ZnO template is dissolved from the ZnS/ZnO core–shell structures. In contrast, in this paper, all technological procedures occur in a single
Classification and application of metal-based nanoantioxidants in medicine and healthcare
Beilstein J. Nanotechnol. 2024, 15, 396–415, doi:10.3762/bjnano.15.36
- personalized and targeted treatments for sclerosis. Recently developed Fe3O4–CeO2 core–shell NPs have shown great potential as platforms for both the diagnosis and treatment of vascular disorders associated with ROS. This is attributed to their impressive magnetic resonance imaging (MRI) capabilities and
Vinorelbine-loaded multifunctional magnetic nanoparticles as anticancer drug delivery systems: synthesis, characterization, and in vitro release study
Beilstein J. Nanotechnol. 2024, 15, 256–269, doi:10.3762/bjnano.15.24
- nitrogen–hydrogen (N–H) group in the range of 3500–3000 cm−1 [53]. The FTIR spectrum of VNB/PDA/PDA/Fe3O4 NPs displays all PDA, SH-PEG, and VNB peaks, indicating the successful formation of a core–shell structure containing these three components. According to the VSM analysis, the saturation magnetization
CdSe/ZnS quantum dots as a booster in the active layer of distributed ternary organic photovoltaics
Beilstein J. Nanotechnol. 2024, 15, 144–156, doi:10.3762/bjnano.15.14
- in various ranges, as well as a comparison of the cutoffs for all included samples. Spectra are shifted vertically for clarity. No core–shell stratification of states was observed in the spectra for smaller quantum dots (QD480 and QD520). However, the influence of a changing core was observed for the
Development and characterization of potential larvicidal nanoemulsions against Aedes aegypti
Beilstein J. Nanotechnol. 2024, 15, 104–114, doi:10.3762/bjnano.15.10
- oil–surfactant core–shell structure within the micelles. Consequently, a lower amount of monoterpenes is released into the surrounding medium [42]. Among the mathematical models used to study drug kinetics, the Korsmeyer–Peppas release model proved to be the most suitable for our formulations (Table 4
Berberine-loaded polylactic acid nanofiber scaffold as a drug delivery system: The relationship between chemical characteristics, drug-release behavior, and antibacterial efficiency
Beilstein J. Nanotechnol. 2024, 15, 71–82, doi:10.3762/bjnano.15.7
- and cells to penetrate into their structure [10]. Second, high drug loading can be achieved, and the drug-release profile (i.e., prolonged, stimulus-activated, and biphasic releases) can be modulated by using different nanofiber structures (e.g., blending, core/shell, and multilayer structures) and
- ]. The core/shell nanofiber structure can also prolong the drug release since the polymer shell plays a role as a rate-control barrier [15]. On the other hand, the nanofiber scaffolds fabricated using suitable hydrophilic or water-soluble polymers are used to improve the dissolution profile and
Curcumin-loaded albumin submicron particles with potential as a cancer therapy: an in vitro study
Beilstein J. Nanotechnol. 2023, 14, 1127–1140, doi:10.3762/bjnano.14.93
- silk core–shell nanoparticles show high cytotoxicity and cellular uptake regarding breast cancer cells [14]. However, the effectiveness of zein nanoparticles as a delivery vehicle is limited by their poor stability, as they tend to aggregate when suspended in water [15]. Lyophilizing the particles
Nanoarchitectonics of photothermal materials to enhance the sensitivity of lateral flow assays
Beilstein J. Nanotechnol. 2023, 14, 988–1003, doi:10.3762/bjnano.14.82
- structures of CuS nanoparticles showed high PCE due to multiple reflections of light enhancing photon absorption. Compared to hexagonal copper sulfide nanoparticles, the flower-like structure of CuS exhibited a 50% increase in photothermal conversion efficiency. By controlling the content of Cu in core–shell
- [74][76]. Au-based nanocomposites have been widely applied in the field of biosensor development because of their wide absorption and excellent light-to-heat conversion properties. Core–shell nanoparticles have a higher PCE than gold nanospheres [77]. Variations in the optical properties were observed
- by changing the composition of core–shell nanoparticles of silica and gold. A Au–Ag nanocomposite material developed by Lin et al. underwent structural changes, resulting in reduced photothermal conversion in the presence of H2S [78]. A multifunctional nanocomposite based on Au–Pt was developed by Li
Metal-organic framework-based nanomaterials for CO2 storage: A review
Beilstein J. Nanotechnol. 2023, 14, 964–970, doi:10.3762/bjnano.14.79
- MOF-74 under the same conditions. The efficacy of the pore space partition strategy has also been indicated in a report of Zheng and coworkers [35]. By combining building units of [In(CO2)4]− and [In3O]+, a core–shell kind of In-based MOF was created, exhibiting a remarkable CO2 adsorption capacity of
Nanostructured lipid carriers containing benznidazole: physicochemical, biopharmaceutical and cellular in vitro studies
Beilstein J. Nanotechnol. 2023, 14, 804–818, doi:10.3762/bjnano.14.66
- carriers showed contributions from both the isolated myristyl myristate and additional Bragg peaks at 19.1° and 23.3° corresponding to the copolymer. This indicates that there was phase segregation, most likely a core–shell structure with the lipidic phase inside and the hydrophilic part of the copolymer
ZnO-decorated SiC@C hybrids with strong electromagnetic absorption
Beilstein J. Nanotechnol. 2023, 14, 565–573, doi:10.3762/bjnano.14.47
- photocatalysis, adsorption, and EM absorption [25]. Researchers have developed ZnO-based absorbing materials with different microstructures, such as core–shell structures [26], flower-like structures [27], rod-like structures [28], cage-like structures, and nanoparticles [29][30]. Wu et al. demonstrated that it
- that there are some fluctuations in the high-frequency range (10–16 GHz), which are called Debye relaxation peaks. These peaks are caused by shape anisotropy or surface polarization. For the SCZ samples, the unique core–shell structure and the interface polarization effect between different phases may
SERS performance of GaN/Ag substrates fabricated by Ag coating of GaN platforms
Beilstein J. Nanotechnol. 2023, 14, 552–564, doi:10.3762/bjnano.14.46
- reliable SERS substrates, which often must be tailored toward specific applications [15][17][18]. The SERS substrates described in the literature include nanoparticles, core–shell nanoparticles, semicontinuous metal films, and many other nanostructures most commonly made of gold or silver [18][19][20][21
Plasmonic nanotechnology for photothermal applications – an evaluation
Beilstein J. Nanotechnol. 2023, 14, 380–419, doi:10.3762/bjnano.14.33
- comparison to the core leads to a multitude of interesting effects such as altered/enhanced absorption and stability [60]. Hence core–shell nanoparticles can be tuned very effectively to the desired wavelength range by manipulating the thickness and/or composition of the shell in addition to the tunability
- disparate manipulations possible in the absorbance of the former. 2.2.3 Matryushka: Multilayered nanoparticles have interestingly different optical characteristics than their single or non-layered pristine counterparts. Taking multiple forms such as core–shell, sandwich structures, and films, such
The steep road to nonviral nanomedicines: Frequent challenges and culprits in designing nanoparticles for gene therapy
Beilstein J. Nanotechnol. 2023, 14, 351–361, doi:10.3762/bjnano.14.30
- polymeric (e.g., core–shell micelles), oligomeric (e.g., lipid nanoparticles), or biomacromolecular (e.g., protein nanoparticles) components complicates matters only further by generating a higher-than-normal background through non-specific interactions with the assay media. In addition, a significant bias
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