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

• additional peroxidase substrates in LFAs increased the detection limit from the nanogram to the picogram level [16][17]. Various tracer elements have been developed to increase the sensitivity of an assay, including noble metal nanomaterials, metal oxides, plasmonic nanostructures, carbon-based materials

• , and magnetic materials [18][19]. Among them, noble metal nanostructures are a new class of photothermal nanomaterials with favourable characteristics to increase the sensitivity of an assay. For example, gold nanoparticles (GNPs) can generate a strong heat signal in addition to the visual colour

• (PCE). However, studies report that gold nanorods suffer from poor photostability, and loss of shape and NIR LSPR upon laser irradiation [39]. By using palladium nanostructures, photothermal stability could be achieved to some extent as they did not change their shape upon laser irradiation. Palladium

Two-dimensional molecular networks at the solid/liquid interface and the role of alkyl chains in their building blocks

• Suyi Liu,
• Yasuo Norikane and
• Yoshihiro Kikkawa

Beilstein J. Nanotechnol. 2023, 14, 872–892, doi:10.3762/bjnano.14.72

• -assembly; solid/liquid interface; two-dimensional networks; Introduction The fabrication of ordered nanostructures using the concept of nanoarchitectonics [1][2][3][4] for various applications such as nanomachines, nanoelectronics, catalysis, and nanopatterning remains challenging [5][6][7]. Design and

Biomimetics on the micro- and nanoscale – The 25th anniversary of the lotus effect

• Matthias Mail,
• Kerstin Koch,
• Thomas Speck,
• William M. Megill and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2023, 14, 850–856, doi:10.3762/bjnano.14.69

• nanostructures on the legs of cribellate spiders”. Here the challenge is to handle nanofibres which naturally stick to surfaces due to the van der Waals energy of surface interaction. Spiders which regularly process nanofibres into silk have evolved a structure on the surface of their hind legs to which the

Silver-based SERS substrates fabricated using a 3D printed microfluidic device

• Phommachith Sonexai,
• Minh Van Nguyen,
• Bui The Huy and
• Yong-Ill Lee

Beilstein J. Nanotechnol. 2023, 14, 793–803, doi:10.3762/bjnano.14.65

• [40][41][42]. Silicon nanostructures with high specific areas are especially popular because they have no fluorescence properties. In this work, we report on the synthesis of a highly sensitive SERS substrate for detecting rhodamine B (RhB) and melamine (MLM) and on the analytical properties of the

In situ magnesiothermic reduction synthesis of a Ge@C composite for high-performance lithium-ion batterie anodes

• Ha Tran Huu,
• Ngoc Phi Nguyen,
• Vuong Hoang Ngo,
• Huy Hoang Luc,
• Minh Kha Le,
• Minh Thu Nguyen,
• My Loan Phung Le,
• Hye Rim Kim,
• In Young Kim,
• Sung Jin Kim,
• Van Man Tran and
• Vien Vo

Beilstein J. Nanotechnol. 2023, 14, 751–761, doi:10.3762/bjnano.14.62

• nanostructures of the obtained products because of its simplicity in operation and the applicability for pseudomorphic transformations [26][27][28]. For instance, in our previous study, a magnesiothermic reaction was applied for the reduction of GeO2 to Ge nanoparticles [29]. In addition to improving the cycling

Nanoarchitectonics for advanced applications in energy, environment and biology: Method for everything in materials science

• Katsuhiko Ariga

Beilstein J. Nanotechnol. 2023, 14, 738–740, doi:10.3762/bjnano.14.60

• . Nanotechnology has enabled the observation and analysis of the properties of objects at the nanoscale level, down to molecules and atoms. Then, by understanding and creating new nanostructures it became possible to create materials with unprecedented high functionality. Society has brought about amazing progress

• in the creation of new materials by extracting and processing natural resources, and using these resources in nanofabrication. In order to establish a methodology to generate new materials which takes advantage of the properties of nanostructures, it is necessary to integrate science and technology

Nanomaterials for photocatalysis and applications in environmental remediation and renewable energy

• Viet Van Pham and
• Wee-Jun Ong

Beilstein J. Nanotechnol. 2023, 14, 722–724, doi:10.3762/bjnano.14.58

• ]. Semiconducting photocatalyst nanomaterials, such as SnO2, TiO2, MoS2, g-C3N4, and Bi-nanostructures have been proven efficient for a range of applications, including organic pollutant removal, NOx degradation, renewable energy production, and waste-to-energy conversion [15][17][18]. Figure 1 shows a general

Humidity-dependent electrical performance of CuO nanowire networks studied by electrochemical impedance spectroscopy

• Jelena Kosmaca,
• Juris Katkevics,
• Jana Andzane,
• Raitis Sondors,
• Liga Jasulaneca,
• Raimonds Meija,
• Kiryl Niherysh,
• Yelyzaveta Rublova and
• Donats Erts

Beilstein J. Nanotechnol. 2023, 14, 683–691, doi:10.3762/bjnano.14.54

• the inconsistent humidity responses in CuO nanostructures and should be considered in further technological developments of CuO nanowire-based systems for sensing, nanoelectronic, and thermoelectric applications. Experimental CuO nanowires were synthesized on Cu foil substrates (GoodFellow, 99.9

Investigations on the optical forces from three mainstream optical resonances in all-dielectric nanostructure arrays

• Guangdong Wang and
• Zhanghua Han

Beilstein J. Nanotechnol. 2023, 14, 674–682, doi:10.3762/bjnano.14.53

• manipulation of nanoparticles by optical forces. It is important to use low-power lasers to achieve efficient trapping and avoid any harmful heating effects. Keywords: all-dielectric nanostructures; anapole; optical force; quasi-bound states in the continuum; toroidal dipole; Introduction Optical forces have

• may generate a detrimental effect to the captured particles. In this context, all-dielectric nanostructures made from lossless materials are preferable to be used. With the possibility to support various types of electromagnetic resonances (e.g., toroidal dipole (TD), anapole, or bound state in the

• continuum (BIC)) which are current in focus nanophotonics research topics, all-dielectric nanostructures have proved themselves to be a good platform for light–matter interactions and an advantageous alternative to their plasmonic counterparts. A TD resonance is produced by the flow of electric currents on

Metal-organic framework-based nanomaterials as opto-electrochemical sensors for the detection of antibiotics and hormones: A review

• Akeem Adeyemi Oladipo,
• Saba Derakhshan Oskouei and
• Mustafa Gazi

Beilstein J. Nanotechnol. 2023, 14, 631–673, doi:10.3762/bjnano.14.52

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

• Fourier model. Keywords: ballistic transport; kinked nanowire; molecular dynamics; phonon Monte Carlo; thermal transport; Introduction The thermal conductivity of semiconductor nanostructures is of great interest because of potential applications in a wide variety of fields, such as thermal control

SERS performance of GaN/Ag substrates fabricated by Ag coating of GaN platforms

• Magdalena A. Zając,
• Bogusław Budner,
• Malwina Liszewska,
• Bartosz Bartosewicz,
• Łukasz Gutowski,
• Jan L. Weyher and
• Bartłomiej J. Jankiewicz

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 metals or their alloys [23][24][25][26][27][28][29][30][31][32]. The chemical and electrochemical etching of GaN heteroepitaxial layers leads to various nanostructures formed on line defects (dislocations), such as straight nanopillars, bunches of nanopillars, and pits [31][32]. The nanostructured

• morphology of the GaN/Ag substrates, especially at temperatures of 100 °C and above. Instead of spiky Ag nanostructures, nanostructures with irregular, but more rounded, shapes are obtained. The optical properties of the GaN/Ag substrates, determined by UV–vis spectroscopy, are affected by their morphology

Nanoarchitectonics to entrap living cells in silica-based systems: encapsulations with yolk–shell and sepiolite nanomaterials

• Celia Martín-Morales,
• Jorge Fernández-Méndez,
• Pilar Aranda and
• Eduardo Ruiz-Hitzky

Beilstein J. Nanotechnol. 2023, 14, 522–534, doi:10.3762/bjnano.14.43

• matrix incorporating free cyanobacteria and (B) cyanobacteria embedded within yolk–shells microstructures. (C, D) Bright-field images of yeast cells encapsulated as yolk–shell nanostructures. (A, B) Images of the biohybrid prepared from yeast embedded in the silica gel matrix G57-4 obtained recorded with

The origin of black and white coloration of the Asian tiger mosquito Aedes albopictus (Diptera: Culicidae)

• Manuela Rebora,
• Gianandrea Salerno,
• Silvana Piersanti,
• Alexander Kovalev and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2023, 14, 496–508, doi:10.3762/bjnano.14.41

• Giugno, 06121 Perugia, Italy Department of Functional Morphology and Biomechanics, Zoological Institute, Kiel University, Am Botanischen Garten 9, 24098 Kiel, Germany 10.3762/bjnano.14.41 Abstract Micro- and nanostructures of the white and black scales on the tarsi of the mosquito Aedes albopictus are

• analysed using scanning electron microscopy, transmission electron microscopy, and fluorescence microscopy. Reflectance spectra of the white areas are measured. No clear difference is present in the morphology of micro- and nanostructures of black and white scales in SEM and TEM, but black scales contain a

• dark pigment. The white colour of the scales has a structural origin. The structural white produced by the micro- and nanostructures of the scales on the tarsi of Ae. albopictus appears bright and is angle-dependent, since the reflected light changes according to the angle detection and according to

Molecular nanoarchitectonics: unification of nanotechnology and molecular/materials science

• Katsuhiko Ariga

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

• expected to pave the way for further functional nanostructures. In organic molecules and materials, the electronic structure and physical properties can be modified by replacing carbon with silicon. For example, silicon-substituted graphene-based materials exhibit exotic properties. However, it is

• various low-dimensional nanostructures will be synthesized by this on-surface synthetic nanoarchitectonics. The bottom-up synthesis of graphene nanoribbons on surfaces has attracted much attention due to their high electronic, optical, and magnetic properties. Sakaguchi and co-workers have synthesized

• structure, magnetism, and charge and spin transport, are very interesting for nanoscale physics. In particular, nanostructures with zigzag edges are expected to have spin-polarized electronic edge states. The synthesized structures could play a leading role in graphene-based spintronics. In addition to

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

• tunability of optothermal properties and enhanced stability, these nanostructures show a wide range of applications in optical sensors, steam generation, water desalination, thermal energy storage, and biomedical applications such as photothermal (PT) therapy. The PT effect, that is, the conversion of

• prior to making the final choice. We conclude with a broad perspective on current research, challenges that remain to be solved, as well as prospects in terms of material design and deployment for better exploitation of such nanostructures for PT energy conversion. 2 Plasmonics in PT conversion Of the

• extinction spectra of nanostructures. Illustrative examples of the absorbance spectra for different morphologies of Ag nanoparticles are shown in Figure 2, elucidating the influence of the same. The extinction spectra (the summation of absorption and scattering spectra) from which the shape effects of

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

• morphology, yield and monodispersity. The introduction of a deep eutectic solvent as a cost-effective and green solvent was reviewed, where the usage of these solvents enabled the extraction and formation of desired nanostructures. The work also records the advantages and disadvantages of wet chemical

Quercetin- and caffeic acid-functionalized chitosan-capped colloidal silver nanoparticles: one-pot synthesis, characterization, and anticancer and antibacterial activities

• Akif Hakan Kurt,
• Elif Berna Olutas,
• Fatma Avcioglu,
• Hamza Karakuş,
• Mehmet Ali Sungur,
• Cansu Kara Oztabag and
• Muhammet Yıldırım

Beilstein J. Nanotechnol. 2023, 14, 362–376, doi:10.3762/bjnano.14.31

• at the higher energy side of the SPR peak of the Ch/CA-Ag NPs while its absorption tail overlaps with that of the SPR peak. These partial matches in the absorption features might be due to the molecular interactions between caffeic acid and chitosan/silver nanostructures [63]. FTIR spectroscopy

• Figure 4a and Figure 4b, the Ag NPs covered by chitosan layers comprising quercetin or caffeic acid have mostly spherical shapes. However, both samples also include nanostructures with different shapes, such as rods and triangles, in smaller numbers than the spherical particles. This also resulted in

Quasi-guided modes resulting from the band folding effect in a photonic crystal slab for enhanced interactions of matters with free-space radiations

• Kaili Sun,
• Yangjian Cai,
• Uriel Levy and
• Zhanghua Han

Beilstein J. Nanotechnol. 2023, 14, 322–328, doi:10.3762/bjnano.14.27

• . Plasmonic nanoantennas [3], although with relatively low Q-factors resulting from material dissipation, still provide a large level of field enhancement due to the deep-subwavelength level of mode confinement. As new alternatives to plasmonic nanostructures, all-dielectric nanostructures supporting Mie

• have been demonstrated in all aspects of light–matter interactions, ranging from optical generation [6], propagation [7], nonlinear processes [8] to signal detection [9] and collection, to name a few. Although QBIC resonances in all-dielectric nanostructures have become a popular and mainstream

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

• d10 configuration (6s26p3) in the sixth period of group V of the periodic table. Because of their intriguing optical, catalytic, electrical, ferroelectric, and piezoelectric properties, bismuth-based nanostructures are used in several significant fields, including optoelectronics, pollutant sensing

• nanostructures with oriented carrier transport, high optical performance, and a short carrier diffusion length, for instance, were prepared by Li and co-workers [42]. The photodegradation rates of ciprofloxacin and tetracycline were, respectively, 94.8% and 81.1% after 1 h. Additionally, Lin et al. [122

• techniques have been developed to synthesise 3-D Bi-based nanostructures with different morphologies, including solvothermal/hydrothermal and sol–gel processes, mechanical exfoliation, solid-state reactions, chemical vapour deposition, and microwave-assisted techniques [106]. These 3-D photocatalysts have

Biocatalytic synthesis and ordered self-assembly of silica nanoparticles via a silica-binding peptide

• Mustafa Gungormus

Beilstein J. Nanotechnol. 2023, 14, 280–290, doi:10.3762/bjnano.14.25

• and proteins, have been demonstrated to be useful in the synthesis and self-assembly of inorganic nanostructures. Herein, we describe a simple Stöber-based method wherein both the synthesis and the self-assembly of SiO2 nanoparticles can be facilitated by a silica-binding peptide (SiBP). We

• structures, high cost, labor-intensiveness, resolution limits, and high throughput time limit the scalability [8]. Self-assembly allows to circumvent some of the constraints of the top-down techniques to obtain ordered 2D or 3D nanostructures. Self-assembly, however, presents challenges of its own. One major

• achieve ordered nanostructures [9][10][11][12][13][14]. Although these methods can increase the efficiency of the self-assembly, they can also complicate the fabrication process further, sometimes even more than the top-down approaches. Therefore, there is still a need for simple methods to synthesize

Spin dynamics in superconductor/ferromagnetic insulator hybrid structures with precessing magnetization

• Yaroslav V. Turkin and
• Nataliya Pugach

Beilstein J. Nanotechnol. 2023, 14, 233–239, doi:10.3762/bjnano.14.22

• -15-2022-1108. The calculations of the non-equilibrium spin current were supported by the Russian Science Foundation project 23-72-00018 “Study of non-equilibrium and boundary phenomena in superconducting hybrid nanostructures”. Investigation of the quasiparticle distribution and dynamics was

Cyclodextrins as eminent constituents in nanoarchitectonics for drug delivery systems

• Makoto Komiyama

Beilstein J. Nanotechnol. 2023, 14, 218–232, doi:10.3762/bjnano.14.21

• construct a variety of nanostructures. The cylindrical structures are stabilized by rings of intramolecular hydrogen bonds between adjacent glucose units. The internal diameters of the cavities of α-, β-, and γ-CyDs (composed of six, seven, and eight ᴅ-glucose units) are about 4.5–6, 6–8, and 8–9.5 Å

• developments in nanoarchitectonics, these excellent properties of CyDs have been further extended to the construction of well-designed nanostructures for advanced drug delivery systems (DDSs). In some nanoarchitectures, their physicochemical and biological properties are successfully modulated by using CyDs as

A novel approach to pulsed laser deposition of platinum catalyst on carbon particles for use in polymer electrolyte membrane fuel cells

• Bogusław Budner,
• Wojciech Tokarz,
• Sławomir Dyjak,
• Andrzej Czerwiński,
• Bartosz Bartosewicz and
• Bartłomiej Jankiewicz

Beilstein J. Nanotechnol. 2023, 14, 190–204, doi:10.3762/bjnano.14.19

• cost of PEMFCs depend on the materials used to construct their major components, which are anode, cathode, and polymer electrolyte membranes [3][6]. Therefore, supplying good-performance materials with controlled nanostructures to fuel cell technology is a crucial issue [7]. One solution to this

• [12][13][14]. Recently, nanoarchitectonics approaches have been used to fabricate various materials for energy-related applications, including carbon-based composites [15][16], Pt-based nanostructures and composites with carbon materials [17][18][19], and metal alloys deposited on TiO2 [20]. The most

Formation of nanoflowers: Au and Ni silicide cores surrounded by SiO_x branches

• Feitao Li,
• Siyao Wan,
• Dong Wang and
• Peter Schaaf

Beilstein J. Nanotechnol. 2023, 14, 133–140, doi:10.3762/bjnano.14.14

• to developing different kinds of nanofabrication methods during the past decades. For example, silicon oxide (SiOx) nanostructures can be grown by the catalyzing effect of Au nanoparticles based on the vapor–liquid–solid (VLS) mechanism [1][2][3][4]. Au–SiOx nanoflowers consisting of Au nanoparticles