Recent progress on field-effect transistor-based biosensors: device perspective

• Billel Smaani,
• Fares Nafa,
• Mohamed Salah Benlatrech,
• Ismahan Mahdi,
• Hamza Akroum,
• Mohamed walid Azizi,
• Khaled Harrar and
• Sayan Kanungo

Beilstein J. Nanotechnol. 2024, 15, 977–994, doi:10.3762/bjnano.15.80

• -care diagnostic systems. This device was realized using a top-to-down approach with an anisotropic and cost-effective self-stop etching method [85][86]. A novel CMOS anisotropic technique was implemented for the etching process, combining classical optical and electron beam lithography with anisotropic

• CMOS technology, combined with optical lithography and an anisotropic self-stop etching method [88][89]. The incorporated P- and N-type NWs showed complementary electrical responses upon prostate-specific antigen binding, providing a unique means of internal command for biosensing signal verification

Beyond biomimicry – next generation applications of bioinspired adhesives from microfluidics to composites

• Dan Sameoto

Beilstein J. Nanotechnol. 2024, 15, 965–976, doi:10.3762/bjnano.15.79

• single sheet. A deliberate defect to yield anisotropic adhesion was described in 2013 by my student Walid bin Khaled [25]. It has been thoroughly characterized in various papers, including his work and that of visiting student Yue Wang, who collaborated with me between 2015 and 2016 [27]. Yue Wang also

Effects of cutting tool geometry on material removal of a gradient nanograined CoCrNi medium entropy alloy

• Yu-Sheng Lu,
• Yu-Xuan Hung,
• Thi-Xuyen Bui and
• Te-Hua Fang

Beilstein J. Nanotechnol. 2024, 15, 925–940, doi:10.3762/bjnano.15.76

• the grain boundaries of the sample forms a clear network of contour maps [30]. The anisotropy of the grains causes anisotropic deformation and increases the surface dispersion density. Therefore, the stress required to promote plastic deformation rises more at grain boundaries than inside grains [23

Synthesis of silver–palladium Janus nanoparticles using co-sputtering of independent sources: experimental and theorical study

• Maria J. Martínez-Carreón,
• Francisco Solís-Pomar,
• Abel Fundora,
• Claudio D. Gutiérrez-Lazos,
• Sergio Mejía-Rosales,
• Hector N. Fernández-Escamilla,
• Jonathan Guerrero-Sánchez,
• Manuel F. Meléndrez and
• Eduardo Pérez-Tijerina

Beilstein J. Nanotechnol. 2024, 15, 808–816, doi:10.3762/bjnano.15.67

• 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

Gold nanomakura: nanoarchitectonics and their photothermal response in association with carrageenan hydrogels

• Nabojit Das,
• Vikas,
• Akash Kumar,
• Sanjeev Soni and
• Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2024, 15, 678–693, doi:10.3762/bjnano.15.56

• hydrogels is not well reported. In this study, nanomakura-shaped anisotropic gold nanoparticles (AuNMs) were synthesized via a surfactant-assisted seed-mediated protocol. Quaternary cationic surfactants having variable carbon tail length (n = 16, 14, 12) were used as capping for tuning the plasmon peak of

• , electrochemical sensors, and photothermal therapy (PTT) [5]. These technologies are based on the principle of elastic scattering properties of metal nanoparticles and on the shift in the plasmon band, which is more prominent in the case of anisotropic nanoparticles in comparison to isotropic ones [6]. Several

• anisotropic gold nanoparticles (AuNPs) have been synthesized and studied in recent years including nanorings, nanoprisms, nanoplates, crooked nanorods, dendrimers, nanocubes, nanodumbells, dogbones, and nanomakura [7][8][9][10][11][12][13][14]. Vis-à-vis to spherical nanoparticles, anisotropic nanoparticles

Functional fibrillar interfaces: Biological hair as inspiration across scales

• Guillermo J. Amador,
• Brett Klaassen van Oorschot,
• Caiying Liao,
• Jianing Wu and
• Da Wei

Beilstein J. Nanotechnol. 2024, 15, 664–677, doi:10.3762/bjnano.15.55

• [21][22]. Burrowing The use of hairs to generate frictional forces is not unique to animals that climb. Hair-like setae on the skin of earthworms aid in burrowing by increasing friction and providing anisotropic anchoring [65][66][67]. When burrowing, the earthworm mainly uses cavity expansion to

• worm to anchor tighter to the surrounding soil. Meanwhile, when the circular muscles relax, the setae deflect and interact less with the soil. This anisotropic anchoring has been realized in a bio-inspired burrowing soft robot [70]. Flying Flying organisms span about eight orders of magnitude in mass

Comparative analysis of the ultrastructure and adhesive secretion pathways of different smooth attachment pads of the stick insect Medauroidea extradentata (Phasmatodea)

• Julian Thomas,
• Stanislav N. Gorb and
• Thies H. Büscher

Beilstein J. Nanotechnol. 2024, 15, 612–630, doi:10.3762/bjnano.15.52

•  5 (euplantulae)). In general, the hierarchical organization of the fibres enables local deformation to adjust to the surface profile of the substrate (e.g., [20][45][70]). This results in anisotropic material properties (i.e., the pads are soft during compression); however, those withstand high

Directed growth of quinacridone chains on the vicinal Ag(35 1 1) surface

• Niklas Humberg,
• Lukas Grönwoldt and
• Moritz Sokolowski

Beilstein J. Nanotechnol. 2024, 15, 556–568, doi:10.3762/bjnano.15.48

• ° and 58° between the chains and the Ag step edges. Hence, such a strict selection of the azimuthal angle of the chains, similar to the one found by Schnadt et al., does not apply to QA. Anisotropic β-phase Now we discuss an interesting aspect regarding the β-phase on Ag(35 1 1), namely the fact that

Multiscale modelling of biomolecular corona formation on metallic surfaces

• Parinaz Mosaddeghi Amini,
• Ian Rouse,
• Julia Subbotina and
• Vladimir Lobaskin

Beilstein J. Nanotechnol. 2024, 15, 215–229, doi:10.3762/bjnano.15.21

• orientations of each protein treated as different potential adsorbates to allow for a more physically realistic model of corona formation for anisotropic proteins. In brief, a standard kinetic Monte Carlo routine is used to advance the simulation from one event, collision of an incoming adsorbate with the NP

TEM sample preparation of lithographically patterned permalloy nanostructures on silicon nitride membranes

• Joshua Williams,
• Michael I. Faley,
• Joseph Vimal Vas,
• Peng-Han Lu and
• Rafal E. Dunin-Borkowski

Beilstein J. Nanotechnol. 2024, 15, 1–12, doi:10.3762/bjnano.15.1

• KOH solution resulted in a faster etch rate but led to much stronger bubbling and roughening of the Si surface with the creation of micropyramidal hillocks [31]. The surface alignment of the Si substrates is parallel to the {100} crystallographic plane of Si, and the anisotropic KOH etching results in

Nanoarchitectonics of photothermal materials to enhance the sensitivity of lateral flow assays

• Elangovan Sarathkumar,
• Rajasekharan S. Anjana and
• Ramapurath S. Jayasree

Beilstein J. Nanotechnol. 2023, 14, 988–1003, doi:10.3762/bjnano.14.82

• architecture of the gold nanoparticles, their plasmonic absorption can be tuned from the visible to the NIR region. Among the different structures of gold, gold nanorods are commonly used as photothermal agents because of the tuneable aspect ratio, anisotropic architecture, and high photoconversion efficiency

• , SERS, fluorescence, and photothermal applications [45]. For instance, compared to spherical architectures, anisotropic nanoscale architectures, such as nanostars, nanoflowers, nanopopcorns, nanorods, and nanocages, exhibit superior SERS and photothermal conversion activities [46][47]. Therefore, it is

Upscaling the urea method synthesis of CoAl layered double hydroxides

• Camilo Jaramillo-Hernández,
• Víctor Oestreicher,
• Martín Mizrahi and
• Gonzalo Abellán

Beilstein J. Nanotechnol. 2023, 14, 927–938, doi:10.3762/bjnano.14.76

• better immobilization of these small anisotropic crystals, precluding any artefacts in the magnetic measurements. The porous texture of all prepared materials was characterized by N2 adsorption at 77 K and CO2 at 273 K in an AUTOSORB-6 apparatus. Prior to the measurements, the samples were degassed for 4

The microstrain-accompanied structural phase transition from h-MoO₃ to α-MoO₃ investigated by in situ X-ray diffraction

• Zeqian Zhang,
• Honglong Shi,
• Boxiang Zhuang,
• Minting Luo and
• Zhenfei Hu

Beilstein J. Nanotechnol. 2023, 14, 692–700, doi:10.3762/bjnano.14.55

• strongly anisotropic, that is, αa=b = 72.87 × 10−6 K−1 and αc = −19.44 × 10−6 K−1. In the h-MoO3 phase, water molecules are located at the (0 0 0.25) site inside the MoO6 octahedra tunnel that is formed by six MoO6 corner-sharing octahedron zigzag chains. With increasing temperature, the release of water

• MoO6 octahedra tunnel. Before the phase transition, the release of the water molecules causes the octahedra chains to shrink and the octahedra tunnel to expand, which results in a strongly anisotropic thermal expansion. When the phase transition occurs, the anomalous expansion of the MoO6 octahedra

• transition from h-MoO3 to α-MoO3 Anisotropic thermal expansion and first-order phase transition The coefficient of thermal expansion (CTE) is an important mechanical parameter for the application of MoO3 thin films, as it can increase the mismatch between thin films and the substrate, causing microdevices to

Thermal transport in kinked nanowires through simulation

• Alexander N. Robillard,
• Graham W. Gibson and
• Ralf Meyer

Beilstein J. Nanotechnol. 2023, 14, 586–602, doi:10.3762/bjnano.14.49

• conductivity of a theoretical crystal with cubic symmetry is isotropic (and investigations of perfectly cubic systems have found such [37]), because of the limited dimensions of a nanostructure along certain crystal axes the contribution to thermal transport in the lattice can be anisotropic. In addition

• , anisotropic heat transport has been found in silicon nanosystems [38], where the thermal conductivity can vary based on the lattice orientation along the direction of transport. It is possible that this effect is related to how lattice orientation can affect surface scattering. Zhou, Chen and Hu showed that a

Molecular nanoarchitectonics: unification of nanotechnology and molecular/materials science

• Katsuhiko Ariga

Beilstein J. Nanotechnol. 2023, 14, 434–453, doi:10.3762/bjnano.14.35

• and Gong discuss the organization of gels [103]. Specifically, they outline a unique anisotropic hydrogel consisting of uniaxially aligned lamellar bilayers in an amorphous gel matrix. This gel organization exhibits a beautiful structural color that is sensitive to mechanical and chemical stimuli. The

Plasmonic nanotechnology for photothermal applications – an evaluation

• A. R. Indhu,
• L. Keerthana and
• Gnanaprakash Dharmalingam

Beilstein J. Nanotechnol. 2023, 14, 380–419, doi:10.3762/bjnano.14.33

New trends in nanobiotechnology

• Pau-Loke Show,
• Kit Wayne Chew,
• Wee-Jun Ong,
• Sunita Varjani and
• Joon Ching Juan

Beilstein J. Nanotechnol. 2023, 14, 377–379, doi:10.3762/bjnano.14.32

• thematic issue covered topics related to new concepts and ideas pertaining to the design and development of nanobiotechnology. These works include “The role of deep eutectic solvents and carrageenan in synthesizing biocompatible anisotropic metal nanoparticles” [4]. This review sheds light onto significant

• reduction methods which use surfactants, and explores the in vitro and in vivo cytotoxicity of the synthesized anisotropic nanoparticles. A portion of the work looks into the possible integration of nanotechnology in deep eutectic solvent extractions and also the use of carrageenan as a safe stabilizing

Bismuth-based nanostructured photocatalysts for the remediation of antibiotics and organic dyes

• Akeem Adeyemi Oladipo and
• Faisal Suleiman Mustafa

Beilstein J. Nanotechnol. 2023, 14, 291–321, doi:10.3762/bjnano.14.26

• [71], and environmental remediation via photocatalysis [25]. Bi-based semiconductors, in particular, are thought to be able to surpass the limitation of the solar light-harvesting capacity of TiO2-based photocatalytic materials because of their smaller bandgaps. Because of its highly anisotropic Fermi

• important for electronic transport and semimetal-to-semiconductor transition, as well as its highly anisotropic Fermi surface (with an electron and hole Fermi energies of 27.2 and 10.8 meV, respectively), which results in an extremely low carrier density of around 3 × 1017 cm−3 [78] and very little overlap

The influence of structure and local structural defects on the magnetic properties of cobalt nanofilms

• Alexander Vakhrushev,
• Aleksey Fedotov,
• Olesya Severyukhina and
• Anatolie Sidorenko

Beilstein J. Nanotechnol. 2023, 14, 23–33, doi:10.3762/bjnano.14.3

• . As noted in [40], the function J is a symmetric radial function. Due to its symmetrical representation, only isotropic phenomena and processes in materials can be described using the J function. At the same time, anisotropic effects are of great interest, since they often affect the most prospective

Density of states in the presence of spin-dependent scattering in SF bilayers: a numerical and analytical approach

• Tairzhan Karabassov,
• Valeriia D. Pashkovskaia,
• Nikita A. Parkhomenko,
• Anastasia V. Guravova,
• Elena A. Kazakova,
• Boris G. Lvov,
• Alexander A. Golubov and
• Andrey S. Vasenko

Beilstein J. Nanotechnol. 2022, 13, 1418–1431, doi:10.3762/bjnano.13.117

• rotational symmetry around the axis, that is, τx = τy. We consider the possibility of anisotropic magnetic scattering times. These can occur in ferromagnetic superconductors where magnetic disorder can be characterized by two scattering times τx = τy and τz [82]. The Usadel equations employed in this work

• case of a ferromagnetic ordering in which disorder is anisotropic (one axis is special), the spin-flip rates in the directions along the ferromagnetic axis and perpendicular to it may be different. In this case, as we mentioned earlier, two scattering times would be necessary. In the S layer, the

Nonlinear features of the superconductor–ferromagnet–superconductor φ₀ Josephson junction in the ferromagnetic resonance region

• Aliasghar Janalizadeh,
• Ilhom R. Rahmonov,
• Sara A. Abdelmoneim,
• Yury M. Shukrinov and
• Mohammad R. Kolahchi

Beilstein J. Nanotechnol. 2022, 13, 1155–1166, doi:10.3762/bjnano.13.97

• –orbit interaction, K is the anisotropic constant, and is the volume of the F layer. The effective field for LLG equation is determined by where ΩF = γK/M0 is the frequency of the ferromagnetic resonance and determines the ratio between Josephson energy and magnetic energy. In order to describe the

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

• the same height as the bristles and hairs. The outside of the mandible is covered with hairs evenly. Surface structures on bee mandibles SEM micrographs also revealed that bee mandibles are covered with anisotropic scale-like micropatterns (Figure 4). Most of the scales on the medial surface of the

• . Stiff bristles spike the centre ridge. These hairs could play a role in cleaning as they could help to brush off contamination. Surface structures on bee mandibles Microstructures were found on the medial surface of honeybee mandibles. These anisotropic structures looked like scales and their

• morphology of the mandibles, as all examined mandibles had this characteristic. Anisotropic structures are also present on other animals such as snakes and were proposed to support anisotropic properties, for example, anisotropic friction [34]. The scales on bee mandibles are mostly oriented towards the apex

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

• blocks of (GAGAGS)n, which are responsible for the anisotropic β-sheet-rich nanocrystals [108]. Sericins are based on glue-like serine-rich glycoproteins with rubber-elastic properties [110]. In addition, a further small protein group named seroins was discovered in lepidopteran silk and is known to

Efficient liquid exfoliation of KP₁₅ nanowires aided by Hansen's empirical theory

• Zhaoxuan Huang,
• Zhikang Jiang,
• Nan Tian,
• Disheng Yao,
• Fei Long,
• Yanhan Yang and
• Danmin Liu

Beilstein J. Nanotechnol. 2022, 13, 788–795, doi:10.3762/bjnano.13.69

• mobility (1000 cm2·V−1·s−1), and highly anisotropic properties [11]. The photodetectors prepared with KP15 have a fast response time and are ideal materials for photovoltaic applications [12]. Based on our previous studies, KP15 is also a one-dimensional material with a defect-free surface [13][14]. This

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

• /reflection of photons [57][58]. Assembly of nanometer-sized monocrystalline materials with anisotropic shapes is of particular importance because the interactions between the crystals can be stronger than among quasi isotropic crystals [59][60][61][62]. However, spontaneous assemblies of anisotropic crystals

• realized, showing an anisotropic alignment of fluorescent guest molecules and directional fluorescence [122]. To match with the lattice structure, the grown coordination polymer sometimes may rotate to find the best lattice match with the substrate [123]. In most cases, the lattices of the substrate and

• particles were squeezed by ice in a 2D space, forming nanosheets. 2D monocrystalline coordination polymers are anisotropic and, thus, very suitable to enhance inter-crystal interaction by forming laminar stacking superstructures. This concept was earlier demonstrated by applying a solution-based layer-by