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Search for "in situ synthesis" in Full Text gives 25 result(s) in Beilstein Journal of Nanotechnology.
Enhanced catalytic reduction through in situ synthesized gold nanoparticles embedded in glucosamine/alginate nanocomposites
Beilstein J. Nanotechnol. 2024, 15, 1227–1237, doi:10.3762/bjnano.15.99
- (e.g., glucose, fructose, and glucosamine (GluN)) for the in situ synthesis of metallic nanoparticles onto alginate-based nanogels remains unexplored. Toxic organic dyes, including nitrophenols and methyl orange (MO), pose a significant environmental threat because of their persistence in water. This
- reaction solution, cleaned with ethanol, and then washed multiple times with distilled water before being used again. Results and Discussion In situ synthesis of AuNPs@Glu/Alg AuNPs are incorporated into a nanocomposite composed of GluN/Alg following the process depicted in Figure 1. Initially, the blank
Simultaneous electrochemical determination of uric acid and hypoxanthine at a TiO2/graphene quantum dot-modified electrode
Beilstein J. Nanotechnol. 2024, 15, 719–732, doi:10.3762/bjnano.15.60
- composite (TiO2/GQDs) obtained by in situ synthesis of GQDs, derived from coffee grounds, and peroxo titanium complexes was used as electrode modifier in the simultaneous electrochemical determination of uric acid and hypoxanthine. The TiO2/GQDs material was characterized by photoluminescence, X-ray
Metal-organic framework-based nanomaterials for CO2 storage: A review
Beilstein J. Nanotechnol. 2023, 14, 964–970, doi:10.3762/bjnano.14.79
- ]. The authors used carboxylic acids to modify graphene nanolayers, and then performed in situ synthesis of different MOF-74 materials on the graphene matrix via a solvothermal method (Figure 5). Although the surface area of composites was only slightly increased compared to the initial materials, the
Ni, Co, Zn, and Cu metal-organic framework-based nanomaterials for electrochemical reduction of CO2: A review
Beilstein J. Nanotechnol. 2023, 14, 904–911, doi:10.3762/bjnano.14.74
- accessibility to active sites and unstable MOFs/substrate interfaces. Therefore, further studies are required to develop binder-free electrodes by in situ synthesis of MOFs on conductive substrates, such as nickel foam, copper foil, and carbon cloth, to overcome the aforementioned limitations and advancing the
Silver nanoparticles loaded on lactose/alginate: in situ synthesis, catalytic degradation, and pH-dependent antibacterial activity
Beilstein J. Nanotechnol. 2023, 14, 781–792, doi:10.3762/bjnano.14.64
- Biotechnology and Food Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam 10.3762/bjnano.14.64 Abstract We present the in situ synthesis of silver nanoparticles (AgNPs) through
- loaded onto the nanocomposite [37][39], followed by reduction using plant extract [36][38]. In the present work, we have developed an in situ synthesis method for AgNPs using an alginate composite with lactose as reducing sugar. This method involves the use of lactose as a negatively charged compound
- . This accounts for the low activity of the nanocomposite in highly basic media. Conclusion A lactose/alginate nanocomposite was successfully employed for the in situ synthesis of AgNPs. This study presents a novel polysaccharide-based nanocomposite with a straightforward synthesis approach. The AgNPs
In situ magnesiothermic reduction synthesis of a Ge@C composite for high-performance lithium-ion batterie anodes
Beilstein J. Nanotechnol. 2023, 14, 751–761, doi:10.3762/bjnano.14.62
- contact formation during in situ synthesis. Keywords: Ge anode; in situ synthesis; lithium-ion batteries; magnesiothermic reduction; Introduction The significantly increasing energy consumption leads to the exhaustion of fossil fuel sources such as coal, oil, and natural gas. Additionally, there are
- results indicate that this chemical contact is enhanced by the high-temperature treatment, which is in agreement with the improved behavior of Ge/C-SSS750 compared to Ge/C-HT180. In addition, the in situ synthesis induces an improved contact between Ge and the carbon matrix, leading to enhanced electronic
- . Therefore, the presence of the carbon matrix, especially in the in situ synthesized composite, plays a key role by not only accommodating the volume variation but also significantly improving the electrical and ionic conductivity of the electrode. Conclusion In this work, one-pot in situ synthesis of Ge@C
Recent trends in Bi-based nanomaterials: challenges, fabrication, enhancement techniques, and environmental applications
Beilstein J. Nanotechnol. 2022, 13, 1316–1336, doi:10.3762/bjnano.13.109
- approach for the in situ synthesis of a series of oxygen-vacancy (OV)-rich Bi0/Bi-based photocatalysts [80]. A new understanding of how Bi0 nanoparticles and OVs are created in situ in Bi-based photocatalysts has been reported. Compared to other Bi-based photocatalysts, Bi0/OV–(BiO)2CO3 showed high
Influence of thickness and morphology of MoS2 on the performance of counter electrodes in dye-sensitized solar cells
Beilstein J. Nanotechnol. 2022, 13, 528–537, doi:10.3762/bjnano.13.44
- similar to that of (NH4)2MoS4 reported by Falola and co-workers [28]. The formation of MoS42− ions in the mixture solution is detailed in Equations 1–4 [27][28][29][30]: It should be noted that (NH4)2MoS4 is poorly soluble in water. Hence, the in situ synthesis of MoS42− from (NH4)6Mo7O24 (high solubility
Multilayer capsules made of weak polyelectrolytes: a review on the preparation, functionalization and applications in drug delivery
Beilstein J. Nanotechnol. 2020, 11, 508–532, doi:10.3762/bjnano.11.41
- capsules incorporated with NPs. Although it resulted in stable capsules, the amount of adsorbed NPs is substantially less [80]. The third method involves the incorporation of preformed NPs into preformed hollow capsules by changing the wall permeability through several triggers [81]. Lastly, in situ
- synthesis of NPs in the shell itself via the polyol reduction method has proved to be effective as it results in a dense and homogenous distribution of the NPs within the capsules [74]. Figure 5a,b shows TEM and AFM images of the successful incorporation and distribution of in situ synthesized silver NPs
Preparation and in vivo evaluation of glyco-gold nanoparticles carrying synthetic mycobacterial hexaarabinofuranoside
Beilstein J. Nanotechnol. 2020, 11, 480–493, doi:10.3762/bjnano.11.39
- pre-formed citrate-stabilized GNPs [67] or during the in situ synthesis of glyco-GNPs [32][38][46]. It is also possible to conjugate suitably derivatized glycans [48] via additional functional groups of thiol-functionalized ligands attached to the surface of pre-formed GNPs. We, however, chose an
Growth dynamics and light scattering of gold nanoparticles in situ synthesized at high concentration in thin polymer films
Beilstein J. Nanotechnol. 2019, 10, 1768–1777, doi:10.3762/bjnano.10.172
- nanocomposites, which globally belong to two categories: the synthesis of NPs in a liquid medium, which provides good control during their growth, or the in situ synthesis of NPs, e.g., by thermal annealing of a noble metal-doped solid phase such as HAuCl4-doped polymer films. In the latter approach there is
- is another advantage of the in situ synthesis since it avoids the use of additional stabilizers such as citrate ions or sodium borohydride. The thermal annealing process allows for a reduction of the metal cations. Once in their neutral state, the metal atoms have to diffuse in the polymer matrix and
- to aggregate yielding nanoparticles. These steps are enhanced by annealing the films at a temperature higher than the glass transition temperature of the polymer. In practice, the in situ synthesis allowed us to obtain relatively thin films (300–500 nm) with an absorbance equivalent to that measured
A Ni(OH)2 nanopetals network for high-performance supercapacitors synthesized by immersing Ni nanofoam in water
Beilstein J. Nanotechnol. 2019, 10, 281–293, doi:10.3762/bjnano.10.27
- ) [16][17][18][19]. However, this fabrication strategy is complicated and unsafely [20]. In addition, the presence of non-conductive binders not only increases the internal resistance but also the total mass of electrode, thus reducing the electrochemical performance. Therefore, the in situ synthesis of
- no report on the in situ synthesis of nickel hydroxide nanosheets on Ni nanofoam through a simple and environmentally friendly method. In the present work, we propose a simple and environmentally friendly two-step preparation, including the dealloying of Ni40Zr20Ti40 metallic glass in HF solutions
Zn/F-doped tin oxide nanoparticles synthesized by laser pyrolysis: structural and optical properties
Beilstein J. Nanotechnol. 2019, 10, 9–21, doi:10.3762/bjnano.10.2
- -ion microbatteries [29], as photocatalysts for brilliant green dye degradation in solution under solar light [30] and even as a component for supercapacitors [31]. The in situ synthesis of SnO2-based nanoparticles co-doped with F and Zn is demonstrated in this work. For this purpose we use the
Tuning adhesion forces between functionalized gold colloidal nanoparticles and silicon AFM tips: role of ligands and capillary forces
Beilstein J. Nanotechnol. 2018, 9, 660–670, doi:10.3762/bjnano.9.61
- received. Common NPs functionalization methods can be tuned to allow improvements of the modification of NPs surface functionality by choosing the appropriate number of steps: from one step (in situ synthesis) up to several (ex situ), if necessary. The one-step method described in [49] was applied for the
Anchoring Fe3O4 nanoparticles in a reduced graphene oxide aerogel matrix via polydopamine coating
Beilstein J. Nanotechnol. 2018, 9, 591–601, doi:10.3762/bjnano.9.55
- introduction into aerogel. The first method is based on the addition of iron precursors to GO water dispersion and “in situ” synthesis of iron oxide MNPs during hydrothermal hydrogel formation in autoclave. The precipitated nanoparticles are anchored to GO structure via Fe–C–O bonds or confined between GO
The role of ligands in coinage-metal nanoparticles for electronics
Beilstein J. Nanotechnol. 2017, 8, 2625–2639, doi:10.3762/bjnano.8.263
- -mediated synthesis [18][19][20], thermal decomposition [21], gamma, and electron beam irradiation [22][23], vapor phase deposition [24] and in situ synthesis through inkjet printing [25]. Such metal nanostructures are useful in inks for printed electronics (Figure 1). They are small enough not to limit
Microfluidic setup for on-line SERS monitoring using laser induced nanoparticle spots as SERS active substrate
Beilstein J. Nanotechnol. 2017, 8, 237–243, doi:10.3762/bjnano.8.26
- employed SERS substrates. However, the citrate reduced colloids are difficult to be prepared in experiments when in situ synthesis is required. In the past years, miniaturization of the systems became important for the development of bioanalytical sensors, having advantages such as precise control over the
- 1178 and 1617 cm−1 MG marker bands recorded on nine different silver spots. On-line SERS monitoring showing selected spectra recorded during the in situ synthesis of the gold spot, the adsorption, and desorption of 10−5 M MG solution on the substrate. The inset from the figure shows an optical image of
Performance of colloidal CdS sensitized solar cells with ZnO nanorods/nanoparticles
Beilstein J. Nanotechnol. 2017, 8, 210–221, doi:10.3762/bjnano.8.23
- situ synthesis and deposition of QDs by the chemical bath deposition (CBD) or successive ionic layer adsorption and reaction (SILAR) method leads to the direct growth of QDs onto the electrode material surface by the chemical reaction of respective ionic species [48][49][50]. In order to understand the
- ) are expected to favor a direct conduction pathway for rapid electron transport. In the case of ZnO-R+P based films, the higher CdS loading property of ZnO-P and the superior one-dimensional nature of ZnO-R has together enhanced the overall QDSSC performance compared to their individual systems. In
Nanostructured germanium deposited on heated substrates with enhanced photoelectric properties
Beilstein J. Nanotechnol. 2016, 7, 1492–1500, doi:10.3762/bjnano.7.142
- optimization of parameters for the in situ synthesis of thin films with high Ge content (50 %) into SiO2. Crystalline Ge nanoparticles were directly formed during co-deposition of SiO2 and Ge on substrates at 300, 400 and 500 °C. Using this approach, effects related to Ge–Ge spacing are emphasized through a
- glass substrates resulting in a higher cost of fabrication. In this paper, we report a detailed investigation of the optimization of parameters for the in situ synthesis of thin films with high Ge content into SiO2. The Ge-nps were directly formed during co-deposition of SiO2 and Ge on substrates at 300
In situ SU-8 silver nanocomposites
Beilstein J. Nanotechnol. 2015, 6, 1661–1665, doi:10.3762/bjnano.6.168
- photoresist; in situ synthesis; metal nanoparticles; micro and nanofabrication; nanocomposite; Findings Noble metal nanoparticles (NPs) have been of high interest for many years as their unique properties make them useable in a large variety of applications [1]. The application of these NPs ranges from
- ]. Furthermore, it is difficult to obtain stable suspensions of preformed NPs in SU-8 without aggregation and phase separation. In situ synthesis methods where the particles are formed directly within the polymeric matrix from a precursor can circumvent this problem. Here, we report a fast and simple method for
The convenient preparation of stable aryl-coated zerovalent iron nanoparticles
Beilstein J. Nanotechnol. 2015, 6, 1192–1198, doi:10.3762/bjnano.6.121
- Federation, Institute of Semiconductor Physics, Novosibirsk 630090, Russian Federation Novosibirsk State University, Novosibirsk 630090, Russian Federation 10.3762/bjnano.6.121 Abstract A novel approach for the in situ synthesis of zerovalent aryl-coated iron nanoparticles (NPs) based on diazonium salt
Multifunctional layered magnetic composites
Beilstein J. Nanotechnol. 2015, 6, 134–148, doi:10.3762/bjnano.6.13
- with 0.1 wt % rhodamine B ITC (Sigma-Aldrich) in water for 3 h. After washing with water the cuts were accurately washed with acidified ethanol for three times. In situ synthesis of magnetite nanoparticles In situ mineralization of magnetite nanoparticles inside the gelatin hydrogel chitin composite
Influence of stabilising agents and pH on the size of SnO2 nanoparticles
Beilstein J. Nanotechnol. 2014, 5, 2192–2201, doi:10.3762/bjnano.5.228
- nanoparticles. There are many concepts that describe the interaction between polymers and nanoparticles, of which the most popular are two theories on the formation of nanoparticle–polymer composites. The first theory involves the in situ synthesis of nanoparticles as a result of precipitation reactions of
Site-selective growth of surface-anchored metal-organic frameworks on self-assembled monolayer patterns prepared by AFM nanografting
Beilstein J. Nanotechnol. 2013, 4, 638–648, doi:10.3762/bjnano.4.71
- in-situ synthesis, which was introduced by Bein et al. [15]. In this synthesis the MOF crystals are grown by dipping a gold coated substrate, which is terminated with a thiol-based self-assembled monolayer (SAM), into a solution containing a mixture of the metal nodes and the organic linkers. As a
Diamond nanophotonics
Beilstein J. Nanotechnol. 2012, 3, 895–908, doi:10.3762/bjnano.3.100
- diamond growth is a crucial step for the in situ synthesis of color centers. A frequently applied method is to expose a solid state source containing the dopant material directly to the reactive plasma [15][19][21]. We also used this approach for the doping of nanodiamond crystals with silicon, which will
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