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Search for "adhesion" in Full Text gives 429 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Effects of focused electron beam irradiation parameters on direct nanostructure formation on Ag surfaces

  • Jānis Sniķeris,
  • Vjačeslavs Gerbreders,
  • Andrejs Bulanovs and
  • Ēriks Sļedevskis

Beilstein J. Nanotechnol. 2022, 13, 1004–1010, doi:10.3762/bjnano.13.87

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  • to different adhesion coefficients between the surface and hydrocarbons. Results from EDX measurements strongly suggest that metal atoms or ions are capable of moving within carbon–metal nanowires under the influence of EB. High Ag ion mobility under electric fields or EB has also been reported in
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Published 22 Sep 2022

Interaction between honeybee mandibles and propolis

  • Leonie Saccardi,
  • Franz Brümmer,
  • Jonas Schiebl,
  • Oliver Schwarz,
  • Alexander Kovalev and
  • Stanislav Gorb

Beilstein J. Nanotechnol. 2022, 13, 958–974, doi:10.3762/bjnano.13.84

Graphical Abstract
  • colony against pathogens. In spite of its stickiness, honeybees are able to handle and manipulate propolis with their mandibles. We wanted to know if beneficial anti-adhesive properties of bee mandibles reduce propolis adhesion. The anatomy of bee mandibles was studied in a (cryo-)scanning electron
  • microscope. Adhesion experiments were performed with propolis on bee mandibles to find out if bee mandibles have anti-adhesive properties that enable bees to handle the sticky material. A scale-like pattern was found on the inside of the mandible. Fresh mandibles were covered with a seemingly fluid substance
  • that was at least partially removed during the washing process. Propolis adhesion on bee mandibles was measured to be 1 J/m2 and was indeed significantly lower compared to five technical materials. Propolis adhesion was higher on mandibles that were washed compared to fresh, unwashed mandibles. Results
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Published 14 Sep 2022

Design of a biomimetic, small-scale artificial leaf surface for the study of environmental interactions

  • Miriam Anna Huth,
  • Axel Huth,
  • Lukas Schreiber and
  • Kerstin Koch

Beilstein J. Nanotechnol. 2022, 13, 944–957, doi:10.3762/bjnano.13.83

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  • phenomena of plant surfaces such as the splash behavior of liquids or the adhesion of insects under laboratory conditions [38][39]. In the past, long-chain hydrocarbons as well as native wax extract were recrytallized to mimic the native leaf structures and their associated properties [21][39][40][41][42
  • ranged from 10.8° ± 7.3° to 31.3° ± 21.3° (Table 1). Wheat leaves are not vertically oriented to the plant axis. TAs provide information on droplet adhesion on such inclined surfaces. For wheat leaves, we could not find any comparative values for TAs in the literature. In the context of active ingredient
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Published 13 Sep 2022

Bioselectivity of silk protein-based materials and their bio-inspired applications

  • Hendrik Bargel,
  • Vanessa T. Trossmann,
  • Christoph Sommer and
  • Thomas Scheibel

Beilstein J. Nanotechnol. 2022, 13, 902–921, doi:10.3762/bjnano.13.81

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  • , Universitätsstr. 30, 95440 Bayreuth, Germany 10.3762/bjnano.13.81 Abstract Adhesion to material surfaces is crucial for almost all organisms regarding subsequent biological responses. Mammalian cell attachment to a surrounding biological matrix is essential for maintaining their survival and function concerning
  • tissue formation. Conversely, the adhesion and presence of microbes interferes with important multicellular processes of tissue development. Therefore, tailoring bioselective, biologically active, and multifunctional materials for biomedical applications is a modern focus of biomaterial research
  • on biological processes and surface interactions involved in the bioselective adhesion of mammalian cells and repellence of microbes on protein-based material surfaces. In addition, it highlights the importance of materials made of recombinant spider silk proteins, focussing on the progress regarding
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Published 08 Sep 2022

Temperature and chemical effects on the interfacial energy between a Ga–In–Sn eutectic liquid alloy and nanoscopic asperities

  • Yujin Han,
  • Pierre-Marie Thebault,
  • Corentin Audes,
  • Xuelin Wang,
  • Haiwoong Park,
  • Jian-Zhong Jiang and
  • Arnaud Caron

Beilstein J. Nanotechnol. 2022, 13, 817–827, doi:10.3762/bjnano.13.72

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  • has not yet attracted as much attention. Recently, the authors of [12] highlighted the role of the oxide skin on the adhesion strength of gallium-based alloys on various substrates. Specifically, the authors found that the resulting adhesion strength is low when the oxide skin surrounding a liquid
  • drop is not disrupted during application onto a substrate. In contrast, when the oxide skin breaks, new oxide forms at the solid–liquid interface with a substrate, which results in adhesion. Also, the wetting of a liquid Ga–In alloy has been related to the adsorption energy of gallium on three
  • consisted of approaching a cantilever towards the sample surface at varying velocities dZ/dt = 0.1–25 µm/s (see Figure 1). We repeated force spectroscopy measurements at each approach/retraction velocity 15 times. We used the retraction part of the force–distance curves to determine the adhesion force Fad
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Published 23 Aug 2022

Hierachical epicuticular wax coverage on leaves of Deschampsia antarctica as a possible adaptation to severe environmental conditions

  • Elena V. Gorb,
  • Iryna A. Kozeretska and
  • Stanislav N. Gorb

Beilstein J. Nanotechnol. 2022, 13, 807–816, doi:10.3762/bjnano.13.71

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  • projections. This, in turn, helps to keep an air layer between the wax particles under conditions of reduced water vapor. Moreover, superhydrophobic surfaces in combination with strong air flow can lead to newly formed ice particles being blown off, since the real contact area and, consequently, the adhesion
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Published 22 Aug 2022

Optimizing PMMA solutions to suppress contamination in the transfer of CVD graphene for batch production

  • Chun-Da Liao,
  • Andrea Capasso,
  • Tiago Queirós,
  • Telma Domingues,
  • Fatima Cerqueira,
  • Nicoleta Nicoara,
  • Jérôme Borme,
  • Paulo Freitas and
  • Pedro Alpuim

Beilstein J. Nanotechnol. 2022, 13, 796–806, doi:10.3762/bjnano.13.70

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  • , on which the graphene film would make electrical contact. The B2 PMMA/graphene films were then transferred onto the wafer and patterned by O2 plasma, followed by the sacrificial layer removal. Previous to the passivation, Al2O3 was selectively removed to improve the adhesion of the oxide passivation
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Published 18 Aug 2022

Recent advances in nanoarchitectures of monocrystalline coordination polymers through confined assembly

  • Lingling Xia,
  • Qinyue Wang and
  • Ming Hu

Beilstein J. Nanotechnol. 2022, 13, 763–777, doi:10.3762/bjnano.13.67

Graphical Abstract
  • adhesion strength could reach about 50 N·cm−2 for different kinds of substrates. The stacking nanoflakes formed multiple domains. Most of the domains were quasi-parallel to the substrates, suggesting a correlation between the alignment of nanoflakes and the anisotropic adhesion strength. The adhesion
  • function is quite attractive because this function is versatile even for nanoparticles. Electrodes of sodium-ion batteries can be fabricated by using the Ni–CN–Ni colloids as glue. The contribution to the adhesion strength among 2D coordination polymers was generally considered to be van der Waals forces
  • [147]. However, the adhesion strength varied over time, sometimes reaching values even close to 100 N·cm−2, which is higher than to be expected from van der Waals forces. The non-uniform deposition of Ni–CN–Ni nanosheets caused by Marangoni flow was an important reason for the unstable value of the
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Published 12 Aug 2022

Effects of substrate stiffness on the viscoelasticity and migration of prostate cancer cells examined by atomic force microscopy

  • Xiaoqiong Tang,
  • Yan Zhang,
  • Jiangbing Mao,
  • Yuhua Wang,
  • Zhenghong Zhang,
  • Zhengchao Wang and
  • Hongqin Yang

Beilstein J. Nanotechnol. 2022, 13, 560–569, doi:10.3762/bjnano.13.47

Graphical Abstract
  • cellular behaviours such as cell migration and adhesion and is an important indicator of the physiological state of the cells [28][29]. Thus, stiff substrates do promote migration of prostate cancer cells by altering their morphology, including cellular polarity index, filamentous pseudopods, and surface
  • imaging of the cell membrane. We observed that prostate cancer cells exhibit a strong migration ability by sensing changes in the extracellular environment through actin polymerization and filamentous pseudopods. This is because the role of actin polymerisation in cell adhesion structure formation
  • deformation [38][39]) the energy dissipation was mainly caused by cell adhesion, which was a certain separation between the approach and retraction curves (Figure 5c). The results showed a negative correlation between viscosity values and substrate stiffness in PC-3 cells: the higher the substrate stiffness
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Published 28 Jun 2022

Ethosomal (−)-epigallocatechin-3-gallate as a novel approach to enhance antioxidant, anti-collagenase and anti-elastase effects

  • Çiğdem Yücel,
  • Gökçe Şeker Karatoprak,
  • Sena Yalçıntaş and
  • Tuğba Eren Böncü

Beilstein J. Nanotechnol. 2022, 13, 491–502, doi:10.3762/bjnano.13.41

Graphical Abstract
  • cytotoxicity experiments, the MTT colorimetric assay was used [24]. Suspensions of L929 cells (100 μL, 2.5 × 104 cells/well) were seeded onto 96-well culture plates which were kept at 37 °C for 24 h for cell adhesion [43]. The cells were treated with different EGCG solutions (31.25–1000 µg/mL) and EGCG-loaded
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Published 31 May 2022

A non-enzymatic electrochemical hydrogen peroxide sensor based on copper oxide nanostructures

  • Irena Mihailova,
  • Vjaceslavs Gerbreders,
  • Marina Krasovska,
  • Eriks Sledevskis,
  • Valdis Mizers,
  • Andrejs Bulanovs and
  • Andrejs Ogurcovs

Beilstein J. Nanotechnol. 2022, 13, 424–436, doi:10.3762/bjnano.13.35

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  • nanostructures were obtained by a one-step hydrothermal oxidation method. The resulting coating is uniform and dense and shows good adhesion to the wire surface. Structure, surface, and composition of the obtained samples were studied using field-emission scanning electron microscopy along with energy-dispersive
  • nanostructured suspension in solution. Second, nanostructures are distributed randomly during the process of deposition, which can affect the electrochemical activity of the electrode and reduce the repeatability of the experiment. Third, the obtained coatings are characterized by their low adhesion and poor
  • ) shows the surface morphology of a thermally obtained copper oxide film. The resulting film is a homogeneous, polycrystalline oxide layer consisting of grains of arbitrary shape. In practice, this layer exhibits poor adhesion to the surface and can be easily damaged mechanically during post-processing
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Published 03 May 2022

A chemiresistive sensor array based on polyaniline nanocomposites and machine learning classification

  • Jiri Kroutil,
  • Alexandr Laposa,
  • Ali Ahmad,
  • Jan Voves,
  • Vojtech Povolny,
  • Ladislav Klimsa,
  • Marina Davydova and
  • Miroslav Husak

Beilstein J. Nanotechnol. 2022, 13, 411–423, doi:10.3762/bjnano.13.34

Graphical Abstract
  • , the sensor array platforms were cleaned in acetone and isopropyl alcohol for 15 min and then exposed to hexamethyldisilazane (HMDS) for 2 h to improve the adhesion of sensing layers. Figure 14 demonstrates the top view of sensor array with nanocomposite sensing layers and the bottom view with heating
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Published 27 Apr 2022

Electrostatic pull-in application in flexible devices: A review

  • Teng Cai,
  • Yuming Fang,
  • Yingli Fang,
  • Ruozhou Li,
  • Ying Yu and
  • Mingyang Huang

Beilstein J. Nanotechnol. 2022, 13, 390–403, doi:10.3762/bjnano.13.32

Graphical Abstract
  • tear of the switches, especially for CNT [16] and GR [29] switches. Permanent adhesion caused by the dielectric charging [52][53] and chemical bonding [24] are the focus of the research on improving the life cycles. At present, it is mainly solved by reducing the electrode contact area [14] or
  • removable element to prepare RF switches. The response time of metal RF switches is about 1–15 µs, and the pull-in voltage is about tens of volts, which cannot meet the demand. Also, the metal lattice stability is poor. Electromigration or micro-welding adhesion failure might easily occur. GR-NEM switches
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Published 12 Apr 2022

Micro- and nanotechnology in biomedical engineering for cartilage tissue regeneration in osteoarthritis

  • Zahra Nabizadeh,
  • Mahmoud Nasrollahzadeh,
  • Hamed Daemi,
  • Mohamadreza Baghaban Eslaminejad,
  • Ali Akbar Shabani,
  • Mehdi Dadashpour,
  • Majid Mirmohammadkhani and
  • Davood Nasrabadi

Beilstein J. Nanotechnol. 2022, 13, 363–389, doi:10.3762/bjnano.13.31

Graphical Abstract
  • ) (PLGA) microspheres coated with TGF-β3 loaded heparin/poly(ʟ-lysine) NPs showed extended growth factor release for 28 days and were found to be excellent structures for cell adhesion and chondrogenic differentiation [27]. Apart from serving as cell adhesion platforms and growth factor supplements
  • films (nanofiber composites) coated with PLDLA nanofibers on the behavior of bovine chondrocytes [109]. The researchers observed that electrospun nanofibers supported the adhesion of cells and maintained the chondrocyte phenotype. Besides, the adhesivity and mechanics of the nanofiber-based scaffolds
  • traditionally incorporated in scaffolds to provide proper cell–matrix interactions for tissue regeneration [149]. Among these, cell adhesion motifs including RGD peptide and fibronectin fragments at the nanoscale are widely used to enhance the cell motility and adhesion functionality of hydrogels [178]. For
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Published 11 Apr 2022

Selected properties of AlxZnyO thin films prepared by reactive pulsed magnetron sputtering using a two-element Zn/Al target

  • Witold Posadowski,
  • Artur Wiatrowski,
  • Jarosław Domaradzki and
  • Michał Mazur

Beilstein J. Nanotechnol. 2022, 13, 344–354, doi:10.3762/bjnano.13.29

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  • manufacturing transparent electrodes, the TCO films should have relatively low resistivity, ρTCO ≤ 10−3 Ω·cm, and optical transmittance, preferably over 80%, for films with thicknesses not exceeding 200 nm. In addition, parameters such as high resistance to mechanical exposure and good adhesion to the substrate
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Published 31 Mar 2022

Relationship between corrosion and nanoscale friction on a metallic glass

  • Haoran Ma and
  • Roland Bennewitz

Beilstein J. Nanotechnol. 2022, 13, 236–244, doi:10.3762/bjnano.13.18

Graphical Abstract
  • corrosion on nanoscale friction. The evolution of friction upon repeated scanning cycles on the corroded surfaces reveals a bilayer surface oxide film, of which the outer layer is removed by the scanning tip. The measurement of friction and adhesion allows one to compare the physicochemical processes of
  • during respective scanning. For both solutions and all immersion times, the friction force of the inner layer increases linearly with the normal load (Figure 4a,c). Adhesion contributes significantly to the friction force, that is, a friction force is measured even at zero externally applied load. A
  • of the friction coefficient and the adhesion force on immersion time for inner and outer layers. The friction coefficient is calculated as the slope of a linear fit to the friction force versus normal load data (Figure 4). The adhesion force of the inner layer versus the AFM tip is determined as the
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Published 18 Feb 2022

Engineered titania nanomaterials in advanced clinical applications

  • Padmavati Sahare,
  • Paulina Govea Alvarez,
  • Juan Manual Sanchez Yanez,
  • Gabriel Luna-Bárcenas,
  • Samik Chakraborty,
  • Sujay Paul and
  • Miriam Estevez

Beilstein J. Nanotechnol. 2022, 13, 201–218, doi:10.3762/bjnano.13.15

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  • rejection [11]. TiO2 nanomaterials with tailored porosity have already been developed as an alternative orthopedic implantation material as they support cell adhesion, viability, growth, and differentiation, which are favorable in bone tissue growth and biological implant fixation [12]. Moreover, to
  • affinities for the nanoparticle surface or the corona. Recently, Zhongru Gou et al. investigated the amount and type of cell adhesion-related proteins (such as fibronectin, vitronectin, and laminin) from serum adsorbed on titanium nanotube arrays. Their findings suggest that all the abovementioned proteins
  • got adsorbed on the nanotube surface and that the nanotopography plays an important role in their selective adsorption and maintenance of biological function [34]. It has been reported that the small size of the nanotubes seems to speed up cell adhesion by providing an effective length scale for
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Published 14 Feb 2022

A photonic crystal material for the online detection of nonpolar hydrocarbon vapors

  • Evgenii S. Bolshakov,
  • Aleksander V. Ivanov,
  • Andrei A. Kozlov,
  • Anton S. Aksenov,
  • Elena V. Isanbaeva,
  • Sergei E. Kushnir,
  • Aleksei D. Yapryntsev,
  • Aleksander E. Baranchikov and
  • Yury A. Zolotov

Beilstein J. Nanotechnol. 2022, 13, 127–136, doi:10.3762/bjnano.13.9

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  • adhesion of PS particles. Therefore, an experiment was carried out with cyclic exposure to toluene vapor. The sensor matrix was exposed to saturated toluene vapors for 8 min. Then, the sensor was allowed to stand for a day to recover the photonic bandgap to its initial position, although 90% of recovery
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Published 25 Jan 2022

Nanoscale friction and wear of a polymer coated with graphene

  • Robin Vacher and
  • Astrid S. de Wijn

Beilstein J. Nanotechnol. 2022, 13, 63–73, doi:10.3762/bjnano.13.4

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  • total normal force applied is around 4 nN (3.3 MPa). Then the force is removed and the graphene sheet stays on the surface due to adhesion. To avoid sliding of the entire graphene sheet over the polymer substrate, we fix the position of some of the graphene carbon atoms during indentation and sliding
  • adhesion. In this case, the load is small compared to the adhesion force at the edge of the tip. Since a bigger tip has a bigger circumference, it is exposed to a larger adhesion force and a larger total downward force. At higher loads, the smaller tip penetrates further, as it is exposed to larger
  • adhesion or covalent chemical bonds, would behave more like the flat graphene in our simulations and would provide additional protection. The temperature dependence of friction can potentially allow one to probe different relaxation mechanisms in the polymer [33][34]. In our previous work [23], we
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Published 14 Jan 2022

Polarity in cuticular ridge development and insect attachment on leaf surfaces of Schismatoglottis calyptrata (Araceae)

  • Venkata A. Surapaneni,
  • Tobias Aust,
  • Thomas Speck and
  • Marc Thielen

Beilstein J. Nanotechnol. 2021, 12, 1326–1338, doi:10.3762/bjnano.12.98

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  • surfaces. The changes in the micro- and macroscale morphology of the leaves should improve our understanding of the way that plants defend themselves against insect herbivores. Keywords: cuticular ridges; insect adhesion; leaf surfaces; ontogeny; polarity; surface replication; Introduction The plant
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Published 01 Dec 2021

Cantilever signature of tip detachment during contact resonance AFM

  • Devin Kalafut,
  • Ryan Wagner,
  • Maria Jose Cadena,
  • Anil Bajaj and
  • Arvind Raman

Beilstein J. Nanotechnol. 2021, 12, 1286–1296, doi:10.3762/bjnano.12.96

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  • indentation model of Equation 3 are defined in conjunction with experimental observables. The adhesion force Fadh* and adhesion gap gadh are identified from the retraction force–distance curve taken just before vibration sweeps. While gadh is observed directly, Fadh requires multiplication with kcantilever
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Published 24 Nov 2021

Two dynamic modes to streamline challenging atomic force microscopy measurements

  • Alexei G. Temiryazev,
  • Andrey V. Krayev and
  • Marina P. Temiryazeva

Beilstein J. Nanotechnol. 2021, 12, 1226–1236, doi:10.3762/bjnano.12.90

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  • classical contact mode, the friction force can be measured; when using off-resonance dynamic modes, stiffness and adhesion in the samples can be determined. Obviously, in determining the mechanical properties, the force of tip–surface interaction should be somewhat greater than that required if the task is
  • /hydrocarbons), and increased adhesion caused by the large contact area of a blunt tip. Regular AM-AFM feedback operation in the presence of sticking is very unstable and inhibits one from obtaining correct surface profile. Using the VM can help in this case. At each measurement point, we take a height
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Published 15 Nov 2021

Use of nanosystems to improve the anticancer effects of curcumin

  • Andrea M. Araya-Sibaja,
  • Norma J. Salazar-López,
  • Krissia Wilhelm Romero,
  • José R. Vega-Baudrit,
  • J. Abraham Domínguez-Avila,
  • Carlos A. Velázquez Contreras,
  • Ramón E. Robles-Zepeda,
  • Mirtha Navarro-Hoyos and
  • Gustavo A. González-Aguilar

Beilstein J. Nanotechnol. 2021, 12, 1047–1062, doi:10.3762/bjnano.12.78

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  • of a drug which is stabilized by the use of surfactants [48]. Therefore, a nanosuspension can be prepared by dispersing a nanocrystal or any other powdered material in an outer liquid medium using a stabilizing agent [45]. Furthermore, these nanosystems have shown increased adhesion to surfaces. The
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Published 15 Sep 2021

An overview of microneedle applications, materials, and fabrication methods

  • Zahra Faraji Rad,
  • Philip D. Prewett and
  • Graham J. Davies

Beilstein J. Nanotechnol. 2021, 12, 1034–1046, doi:10.3762/bjnano.12.77

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  • into the master mould and solidified by raised temperature (thermosetting), cooling, or UV curing to produce crosslinking. It can then be peeled from the master mould, which can be repeatedly reused to produce more replica moulds. To reduce the adhesion of the soft replica mould, the surface of the
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Published 13 Sep 2021

The role of deep eutectic solvents and carrageenan in synthesizing biocompatible anisotropic metal nanoparticles

  • Nabojit Das,
  • Akash Kumar and
  • Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2021, 12, 924–938, doi:10.3762/bjnano.12.69

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  • carrageenan gel retaining the antibacterial property [85]. A study based on an injectable composite of carrageenan and nanoscale hydroxyapatite as an injectable bone substitute showed good adhesion properties with no cytotoxicity in vitro, as shown in Figure 6 [116]. The nanocomposite also exhibited
  • aggregation and sedimentation above pH 5 [117]. The stability was enhanced upon adhesion of carrageenan to the nanoparticle surface rendering it negatively charged. Although there are little reports on using carrageenan as a safe and sustainable component for synthesizing plasmonic metal nanomaterials, the
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Published 18 Aug 2021
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