Ca_n neutral clusters: a two-step G₀W₀ and DFT benchmark

• Sunila Bakhsh,
• Sameen Aslam,
• Muhammad Khalid,
• Muhammad Sohail,
• Sundas Zafar,
• Sumayya Abdul Wadood,
• Kareem Morsy and
• Muhammad Aamir Iqbal

Beilstein J. Nanotechnol. 2024, 15, 1010–1016, doi:10.3762/bjnano.15.82

• /bjnano.15.82 Abstract Electronic and structural properties of calcium clusters with a varying size range of 2–20 atoms are studied using a two-step scheme within the GW and density functional theory (DFT) with generalized gradient approximation (GGA). The GGA overestimates the binding energies, optimized

• materials science (as an ionic deposition) [2]. The clusters of calcium are essential because they bridge the atomic and bulk materials; therefore, revealing their transition from micro- to macroscopic characteristics is a significant undertaking [3]. Being a divalent metal, the size transition of calcium

• -capacity hydrogen storage [8]. As cluster size grows, the electronic configuration changes its semiconducting behavior from nonmetal to metallic due to the overlap between the s and p orbitals. Moreover, the geometry of clusters is related to their structural properties. Most of the studies on calcium

Atomistic insights into the morphological dynamics of gold and platinum nanoparticles: MD simulations in vacuum and aqueous media

• Evangelos Voyiatzis,
• Eugenia Valsami-Jones and
• Antreas Afantitis

Beilstein J. Nanotechnol. 2024, 15, 995–1009, doi:10.3762/bjnano.15.81

• spherical nanoparticles (NPs) upon cooling is studied through atomistic molecular dynamics simulations. The goal is to identify the morphological transformations occurring in the nanomaterials as well as to quantify their dependence on temperature, chemistry, and NP size. For diameters smaller than 3 nm

• , the transition temperature from a melted/amorphous to a highly crystalline state varies considerably with NP size. For larger NPs, the transition temperature is almost diameter-independent, yet it differs considerably from the transition temperature of the respective bulk materials. The platinum NPs

• picture of the NPs’ toxicity and reactivity emerges: Small/hot NPs are likely more toxic than their large/cold counterparts. Because of the small size of the NPs considered, the observed structural modifications are challenging to be studied by experimental techniques. The present approach can be readily

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

• good sensitivity detection via a label-free procedure, real-time electrical signal in situ amplification, and cost-effective mass production, achieved through microelectronic manufacturing processes and a small size for portable point-of-care testing [34][35]. Additionally, the application of

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

• to sub-micrometer size [8][9]. It has been an active area of academic research for well over 30 years. Microfluidics technology has eventually enabled a variety of new innovations, including COVID-19 rapid tests [10], microfluidic displays [11], and low-cost diagnostics [12]. Soft robotics is a newer

• have been applied to previously, and a very promising application is the development of shape- and stiffness-tunable composites. Anyone familiar with the movies “The Terminator” or “Big Hero 6” has seen a sci-fi version of robots that can change their shape, size, or function. Science fiction offers

• can occur with these proof-of-principle designs. The inset shows the relative size of the anti-adhesive beads on top of the Setex surface. (c) Multiheight fibers inspired by spider legs (2008 experiments) as previously disclosed [48] may further enhance composite behaviors for on–off functionality

Therapeutic effect of F127-folate@PLGA/CHL/IR780 nanoparticles on folate receptor-expressing cancer cells

• Thi Ngoc Han Pham,
• Phuong-Thao Dang-Luong,
• Hong-Phuc Nguyen,
• Loc Le-Tuan,
• Xuan Thang Cao,
• Thanh-Danh Nguyen,
• Vy Tran Anh and
• Hieu Vu_Quang

Beilstein J. Nanotechnol. 2024, 15, 954–964, doi:10.3762/bjnano.15.78

• nanoprecipitation technique, resulting in small size, high homogeneity, and negative surface charge. Importantly, the folate-targeted nanoparticles demonstrated enhanced uptake and cytotoxicity in folate receptor-positive cancer cell lines (MCF-7 and HepG-2) compared to folate receptor-negative cells (HEK 293

• scattering (DLS) and zeta potential spectra measurements were carried out in three replicates on a nanoPartica Horiba SZ-100 (Japan) with a scattering angle of 90° at 25 °C to determine the size distribution and stability of the nanocomposites. Scanning electron microscopy (SEM) The F127-folate@PLGA/CHL

• F127-folate to enhance their therapeutic efficacy. Size and charge of the nanoparticles PLGA nanoparticles can be synthesized by several methods, such as single emulsion evaporation, double emulsion evaporation, or microfluidics using different surfactants, including PVA, F127, sodium cholate, or SDS

Electrospun nanofibers: building blocks for the repair of bone tissue

• Tuğrul Mert Serim,
• Gülin Amasya,
• Tuğba Eren-Böncü,
• Ceyda Tuba Şengel-Türk and
• Ayşe Nurten Özdemir

Beilstein J. Nanotechnol. 2024, 15, 941–953, doi:10.3762/bjnano.15.77

• because of their extremely large surface area-to-volume ratio, small pore size, and high porosity. Nanofibers are known to be highly functional systems with the ability to mimic the structure and function of the natural bone matrix, facilitating osteogenesis for cell proliferation and bone regeneration

• mixed polymers, and the formation of highly porous and continuous fibers are the remarkable features of this method. The importance of nanofiber-based scaffolds in bone tissue regeneration is increasing because of suitable pore size, high porosity, osteoinduction, induction of bone growth with

• systems because of their extremely large surface area-to-volume ratio, small pore size, and high porosity. Nanofibers are known to be highly functional systems with the ability to mimic the structure and function of the natural bone matrix and to facilitate osteogenesis for cell proliferation and bone

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

• . Moreover, it explores the influence of relative tool sharpness and rake angle on the cutting process. The results show that an increase in the average grain size of the GNG samples leads to a decrease in the average resultant cutting force, as predicted by the Hall–Petch relationship. The deformation

• behavior shows that grain boundaries are crucial in inhibiting the propagation of strain and stress. As the average grain size of the GNG sample increases, the range of shear strain distribution and average von Mises stress decreases. Moreover, the cutting chips become thinner and longer. The subsurface

• damage is limited to a shallow layer at the surface. Since thermal energy is generated in the high grain boundary density, the temperature of the contact zone between the substrate and the cutting tool increases as the GNG size decreases. The cutting chips removed from the GNG CoCrNi MEA substrates will

Identification of structural features of surface modifiers in engineered nanostructured metal oxides regarding cell uptake through ML-based classification

• Indrasis Dasgupta,
• Totan Das,
• Biplab Das and
• Shovanlal Gayen

Beilstein J. Nanotechnol. 2024, 15, 909–924, doi:10.3762/bjnano.15.75

• medicine, electronics, and environmental science. Understanding the structural aspects of surface modifiers in nanoparticles that govern their cellular uptake is crucial for optimizing their efficacy and minimizing potential cytotoxicity. The cellular uptake is influenced by multiple factors, namely, size

• dimensions within the range of 1 to 100 nm [2]. The diminutive size of nanoparticles contributes to a significantly high surface area with respect to volume, resulting in enhanced reactivity, improved stability, and augmented functionality. In the field of nanomaterials, ENMOs are a notable subset. These

• ENMOs (monocrystalline magnetic nanoparticles having overall size of 38 nm and an average of 60 ligands per nanoparticle, indicating a consistent level of attachment across different preparations) regarding human pancreatic ductal adenocarcinoma cells (PaCa2), human umbilical vein endothelial cells

Facile synthesis of Fe-based metal–organic frameworks from Fe₂O₃ nanoparticles and their application for CO₂/N₂ separation

• Van Nhieu Le,
• Hoai Duc Tran,
• Minh Tien Nguyen,
• Hai Bang Truong,
• Toan Minh Pham and
• Jinsoo Kim

Beilstein J. Nanotechnol. 2024, 15, 897–908, doi:10.3762/bjnano.15.74

• , using the Brunauer–Emmett–Teller (BET) model, and the total pore volume and pore size distribution, using the Horvath–Kawazoe (HK) model. The samples were activated under vacuum at 150 °C for 12 h before being introduced into the porosity analyzer. CO2 and N2 adsorption test The characteristic

• /desorption isotherms characteristic of type I. Additionally, a pore size distribution was observed with three prominent peaks at approximately 0.62, 1.30, and 1.75 nm within the micropore region defined by IUPAC (less than 2.0 nm), as depicted in Figure 5b. These observations confirm that the reference

• sample has a microporous structure with a BET surface area and a total pore volume of 1825.4 m2·g−1 and 0.772 cm3·g−1, respectively. Similarly, the micropore structures were also determined in the obtained M-100Fe@Fe2O3 samples by examining the profiles of isotherms and pore size distributions. Notably

Water-assisted purification during electron beam-induced deposition of platinum and gold

• Cristiano Glessi,
• Fabian A. Polman and
• Cornelis W. Hagen

Beilstein J. Nanotechnol. 2024, 15, 884–896, doi:10.3762/bjnano.15.73

• , resulting in the fabrication of metal oxide nanostructures. Post-deposition purification requires the removal of carbon after completion of the deposition, causing porosity and/or severe changes in size and shape. In addition, post-deposition purification may lead to only partly purified material. For

• discrete exposure points. The distance between exposure points is the pitch, while the exposure time for each point is the dwell time. This pattern is repeated for a certain number of passes [1]. The shape and size of the deposits are defined using the TFS “rectangle” or “line” patterning tools. The main

• patterning parameters are the patterned area size, dwell time, primary beam energy and current, pitch, number of passes, and SEM chamber pressure during deposition or chamber pressure increase during deposition. The complete parameters for the deposits presented in this work are presented in Supporting

The effect of age on the attachment ability of stick insects (Phasmatodea)

• Marie Grote,
• Stanislav N. Gorb and
• Thies H. Büscher

Beilstein J. Nanotechnol. 2024, 15, 867–883, doi:10.3762/bjnano.15.72

• roughness (1 µm) matches the size of the tips and course roughness (12 µm) matches the size of the entire nubs [33]. The combination of these three levels of roughness was used to investigate potential effects in the three mentioned perspectives of the attachment pads. For details on the fabrication process

• data analysis to reduce intra-individual variance. As one old female deceased within the experimental time, the sample size was 15 for both groups regarding pull-off forces and for the young group regarding traction forces; the sample size was 14 for traction force measurements in the old group. A list

• signals on the attachment pads (Figure 5E). Instead of the vibrant blue signal of the surrounding cuticle, some areas appear orange to brown in WMF (Figure 5F) images, or green to red in CLSM (Figure 6B) images, typical for stronger sclerotized cuticle. The size and proportion of such patches was higher

A review on the structural characterization of nanomaterials for nano-QSAR models

• Salvador Moncho,
• Eva Serrano-Candelas,
• Jesús Vicente de Julián-Ortiz and
• Rafael Gozalbes

Beilstein J. Nanotechnol. 2024, 15, 854–866, doi:10.3762/bjnano.15.71

• their risks, are blooming. One of the challenges is the characterization of the NMs. This cannot be done with a simple SMILES representation, as for organic molecules, because their chemical structure is complex, including several layers and many inorganic materials, and their size and geometry are key

• specify a particular substance in the NM field for questions such as their registration and risk evaluation. A nanoform is defined by having particles with a specific composition and with structural properties (such as size and shape) in a defined range. In this way, it differs from more general labels

• , namely, composition, impurities, surface treatment functionalization, size, shape, and surface area [10]. One of the challenges in nano-QSAR modelling, and in the modelling of NMs in general, is the definition and the identification of what a single NM is. Discrete organic molecules can be fully

Investigation on drag reduction on rotating blade surfaces with microtextures

• Qinsong Zhu,
• Chen Zhang,
• Fuhang Yu and
• Yan Xu

Beilstein J. Nanotechnol. 2024, 15, 833–853, doi:10.3762/bjnano.15.70

• can optimize the aerodynamic performance of the blades, thereby achieving energy savings. However, the rational arrangement of microstructures on blade surfaces also requires investigation, as the shape, size, and placement position of microstructures can all affect drag reduction performance [20][21

• yielded encouraging achievements in the application of microtextures on blade surfaces, achieving good drag reduction performance relies heavily on the appropriate microtextures regarding size, type, and position. The determination of such microtextures is typically impractical for the following two

• surfaces. (2) The analysis of drag reduction performance is mostly based on numerical simulation results, with a lack of technology research regarding the processing of microtextures and of analysis of experimental results. On the one hand, the small size of microtextures may lead to significant errors in

Intermixing of MoS₂ and WS₂ photocatalysts toward methylene blue photodegradation

• Maryam Al Qaydi,
• Nitul S. Rajput,
• Michael Lejeune,
• Abdellatif Bouchalkha,
• Mimoun El Marssi,
• Steevy Cordette,
• Chaouki Kasmi and
• Mustapha Jouiad

Beilstein J. Nanotechnol. 2024, 15, 817–829, doi:10.3762/bjnano.15.68

• . The observed flakes have typical shapes such as triangular, hexagonal, pentagonal, and other irregular polygonal shapes. The size of the flakes is within the range of 1 µm. The morphology and the shape of the flakes have common microstructures of MoS2/WS2 materials grown using chemical vapor

• process. However, the distinct features of the flakes were overall conserved. Figure 5 depicts TEM images carried out on the samples. Low- and high-resolution images captured from MoS2, WS2, and MoS2/WS2 composite samples are shown in Figure 5a–f. The low-magnification TEM image indicates that the size of

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

• offered by the same two metals in the bulk, such as Au and Ni [4]. Alloying immiscible elements is feasible in the nanoscale regime because the enthalpy of the mixture decreases as the size of the nanoparticles decreases, and it generally becomes negative below a certain particle size [5]. Silver

• nanoparticles, by the wet reduction method using palladium and silver hydroxide colloids as precursors, to study hydrogen absorption; the size of these BNPs was 6–7 nm. However, inhomogeneous nanoparticles were obtained because Ag fractions were found on the surface, which were increased by heating the samples

• % purity; the sputtered atoms traveled to the second chamber, where a shower of Pd atoms was generated on the second magnetron from a palladium target with 99.99% purity. The BNPs generated by condensation passed through a quadrupole mass filter for size selection and were finally deposited on holey carbon

Electrospun polysuccinimide scaffolds containing different salts as potential wound dressing material

• Veronika Pálos,
• Krisztina S. Nagy,
• Rita Pázmány,
• Krisztina Juriga-Tóth,
• Bálint Budavári,
• Judit Domokos,
• Dóra Szabó,
• Ákos Zsembery and
• Angela Jedlovszky-Hajdu

Beilstein J. Nanotechnol. 2024, 15, 781–796, doi:10.3762/bjnano.15.65

• , and fibers can be produced with uniform diameters in a controlled way [13][14]. Electrospun fibers are similar to macromolecule networks (e.g., collagen, fibrinogen, elastin) around the cells, which are called extracellular matrix (ECM). The ECM has fiber diameters in the size range of 50–500 nm and

• adhesion, growth, proliferation, and differentiation. The electrospinning technique offers the possibility of using the formed scaffold as a wound dressing with fibers of proper size and morphology. The porous nature of the scaffold enables the drainage of wound fluids and facilitates the entry of oxygen

Exploring surface charge dynamics: implications for AFM height measurements in 2D materials

• Mario Navarro-Rodriguez,
• Andres M. Somoza and
• Elisa Palacios-Lidon

Beilstein J. Nanotechnol. 2024, 15, 767–780, doi:10.3762/bjnano.15.64

• [23][24], or electrochemical properties [25] is a key topic of research. Factors such as flake size and shape, composition, density of defects, or doping significantly influence the response of 2D materials. Given the nanoscopic scale underlying the functionality of 2D materials, atomic force

• local degree of reduction, with a lateral size for the domains that varies from tens to hundreds of nanometers. This confirms, on the one hand, that this mechanism achieves nanoscale resolution, primarily attributable to the tip, and, on the other hand, that the voltage dissipation mechanism depends on

Green synthesis of biomass-derived carbon quantum dots for photocatalytic degradation of methylene blue

• Dalia Chávez-García,
• Mario Guzman,
• Viridiana Sanchez and
• Rubén D. Cadena-Nava

Beilstein J. Nanotechnol. 2024, 15, 755–766, doi:10.3762/bjnano.15.63

• from 450 to 4000 cm−1. The size distribution of the synthesized CQDs was determined via DLS, which relies on the measurement of the hydrodynamic radius of the particles. The CQDs were analyzed via a Malvern NanoSizer ZP instrument. The samples were diluted in deionized water to prevent signal

• (Figure 1a). Samples M1 and M5 exhibit a barely noticeable band between 250 and 300 nm, a typical peak was not observed for both samples probably due to the presence of some carbon impurity that hinder the detection of the π–π* transition around 270 nm. Dynamic light scattering Figure 2 shows the size

• only using water, have sizes close to 100 nm. It is important to note that the samples prepared using grape pomace peel as the biomass source produced smaller particle sizes compared to those prepared with watermelon peel under identical synthesis conditions. The size distribution determined by DLS

Effect of repeating hydrothermal growth processes and rapid thermal annealing on CuO thin film properties

• Monika Ozga,
• Eunika Zielony,
• Aleksandra Wierzbicka,
• Anna Wolska,
• Marcin Klepka,
• Marek Godlewski,
• Bogdan J. Kowalski and
• Bartłomiej S. Witkowski

Beilstein J. Nanotechnol. 2024, 15, 743–754, doi:10.3762/bjnano.15.62

• . The surface of the as-grown films is characterized by an even, random arrangement of grains, elongated in a single direction, with a size of approximately 50 nm. These grains consist of agglomerates of nanocrystallites. However, in the case of sequenced films (after the HT+RTA procedure), those

• system [52]. Both of these mechanisms contribute to an increase in grain size with each successive repetition of the HT+RTA cycle. Another consequence of thermal processing is a change in the surface structure. SEM images reveal that the number of sequencing cycles affects the continuity of the films

• . Analysis of the predominant peak was conducted to assess variations in crystallite size and dislocations (Figure 4B). A distinct contrast between the as-grown and 1× sample is observed for each of these parameters, whereas the graph flattens for the sequenced samples. The nanocrystallite size was estimated

Level set simulation of focused ion beam sputtering of a multilayer substrate

• Alexander V. Rumyantsev,
• Nikolai I. Borgardt,
• Roman L. Volkov and
• Yuri A. Chaplygin

Beilstein J. Nanotechnol. 2024, 15, 733–742, doi:10.3762/bjnano.15.61

• on evaluating the shape of milled dot and line structures with different depths. Numerical calculations Equation 1 was solved numerically on a primary three-dimensional regular rectangular computational grid with a cell (voxel) size equal to 0.3σ1 to find the function . The function S(x, y, t) was

• negligible for incidence angles smaller than 70°. The values of functions and were tabulated on the basis of SDTrimSP Monte Carlo simulations. The range of incidence angles θ from 70° to 88° was divided into intervals with the step size of 2°, while the hemisphere above the substrate surface was presented

• gallium precipitates, whereas the dark layer surrounding them corresponds to amorphized silicon (a-Si). The second set of structures was fabricated in the serpentine scanning mode with a small number of ion beam passes and pixel spacing values in two orthogonal directions equal to a = b = 60 nm. The size

Simultaneous electrochemical determination of uric acid and hypoxanthine at a TiO₂/graphene quantum dot-modified electrode

• Vu Ngoc Hoang,
• Dang Thi Ngoc Hoa,
• Nguyen Quang Man,
• Le Vu Truong Son,
• Le Van Thanh Son,
• Vo Thang Nguyen,
• Le Thi Hong Phong,
• Ly Hoang Diem,
• Kieu Chan Ly,
• Ho Sy Thang and
• Dinh Quang Khieu

Beilstein J. Nanotechnol. 2024, 15, 719–732, doi:10.3762/bjnano.15.60

• properties. Graphene quantum dots (GQDs) are zero-dimensional graphene derivatives consisting of one to few layers of graphene sheets with a size of less than 20 nm in width [11]. The missing bandgap results in an absence of luminescence in pristine graphene. However, a bandgap can be generated in GQDs

• (101), (004), and (200) planes, respectively. This confirms that the (1:4)TiO2/GQDs suspension contains fine anatase nanoparticles. The broadening of XRD peaks in suspension was employed to evaluate the size (Dhkl) of the crystal domains. It was calculated from the full width at half maximum (B) using

• the Scherrer equation , where λ is the X-ray wavelength (1.5406 Å), θ is the Bragg angle, and K is a constant (ca. 0.9). The average crystallite size of the synthesized TiO2 nanoparticles was found to be 7.1 nm. It is notable that no typical peaks for GQDs can be found in the XRD pattern of solid TiO2

Elastic modulus of β-Ga₂O₃ nanowires measured by resonance and three-point bending techniques

• Annamarija Trausa,
• Sven Oras,
• Sergei Vlassov,
• Mikk Antsov,
• Tauno Tiirats,
• Andreas Kyritsakis,
• Boris Polyakov and
• Edgars Butanovs

Beilstein J. Nanotechnol. 2024, 15, 704–712, doi:10.3762/bjnano.15.58

• of the dimension, leading to overestimation of the elastic modulus, which can be mistaken for the “size effect” [18]. The onset diameter of this size effect, when the surface contribution towards the NW stiffening is becoming significant, has been conflictingly reported to be around 10–40 nm and

Enhancing higher-order modal response in multifrequency atomic force microscopy with a coupled cantilever system

• Wendong Sun,
• Jianqiang Qian,
• Yingzi Li,
• Yanan Chen,
• Zhipeng Dou,
• Rui Lin,
• Peng Cheng,
• Xiaodong Gao,
• Quan Yuan and
• Yifan Hu

Beilstein J. Nanotechnol. 2024, 15, 694–703, doi:10.3762/bjnano.15.57

• the cantilever mass distribution so that the higher-order modal frequencies are integer multiples of the fundamental frequency, such as adding an inner paddle [16], attaching finite size masses [17], and cutting a rectangular slot in the cantilever [18]. However, most of the above methods involve

• increasing the modal frequency by decreasing the cantilever size to achieve faster scanning speeds [20][21][22]. According to our further study, the bridge/cantilever coupled system model can also significantly increase the modal frequency of the cantilever, providing a new idea for high-frequency fast

• the higher-order modal response of the coupled system gradually increases, which will improve the sensitivity of the detection and promote the development of multifrequency AFM utilizing higher-order modes of the cantilever to image sample properties. Finite element analysis Model size and simulation

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

• into heat energy is an intrinsic optical property of metal nanoparticles when irradiated using near-infrared radiation. However, the impact of size and shape on the photothermal behaviour of gold nanomakura particles possessing optical absorption within 600–700 nm as well as on incorporation in

• temperature [2]. The mean free path of an electron is influenced by shape/size of the metal nanoparticles which ultimately governs their physical, chemical, optical, magnetic, catalytic, and electronic properties [3]. All plasmonic metals exhibit optical phenomena over a range of electromagnetic radiation

• incorporation into k-CG hydrogel beads. Transmission electron microscopy and atomic force microscopy measurements The actual mean size of the synthesized makura-shaped nanoparticles was calculated in terms of length/width aspect ratio. Figure 4 shows transmission electron microscopy (TEM) and atomic force

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

• , reversible adhesion, and surface modulation (e.g., superhydrophobicity). This review will present various functions that biological hairs have been discovered to carry out, with the hairs spanning across six orders of magnitude in size, from the millimeter-thick fur of mammals down to the nanometer-thick

• same phylogenetic class, order, family, genus, and species [8]. However, hair mass deviates slightly from isometry, and it appears that larger organisms are more “hairy”. First, the exponent for power-law fits increases with size, as evidenced by comparing the fits for cells and phages, insects

• that larger organisms dedicate more energy and resources to growing and maintaining hair. This finding motivates the following questions: (1) What are the purposes of hair? (2) How do these purposes vary with organism size? For countless animal species, hairs are strategically placed throughout the