Coordination-assembled myricetin nanoarchitectonics for sustainably scavenging free radicals

• Xiaoyan Ma,
• Haoning Gong,
• Kenji Ogino,
• Xuehai Yan and
• Ruirui Xing

Beilstein J. Nanotechnol. 2022, 13, 284–291, doi:10.3762/bjnano.13.23

• interaction (Myr/GSH = 1:2) [32][33][34]. The nanoparticles were formed by coordination self-assembly of Zn2+, Myr, and GSH (Figure 1a). They were expected to show good antioxidant activity to protect cells from the ROS-induced damage (Figure 1b). The transmission electron microscopy (TEM) image in Figure 2a

• component co-assembles with Myr and GSH. Fourier-transform infrared (FTIR) spectra were used to further confirm the self-assembly of the MZG nanoparticles. In Figure 2d, the two bands at 2522 cm−1 and 3350 cm−1 were assigned to the mercapto group (–SH) and the stretching vibration of the amino group (–NH2

Systematic studies into uniform synthetic protein nanoparticles

• Nahal Habibi,
• Ava Mauser,
• Jeffery E. Raymond and
• Joerg Lahann

Beilstein J. Nanotechnol. 2022, 13, 274–283, doi:10.3762/bjnano.13.22

• ]. Nanoparticles made of proteins [6] hold significant promise in this respect and different methods have been adopted to fabricate protein-based nanoparticles including nab technology [1], desolvation methods [2], and self-assembly [3]. The protein human albumin is a natural carrier of endogenous hydrophobic

• protein structure (sometimes fully denaturing the protein) and to cause subsequent precipitation of protein aggregates [18]. Self-assembly strategies also provide access to a variety of structurally diverse [19] protein nanoparticles. With the advent of in silico design and subsequent production of de

• novo protein nanoparticle systems, the number of specific protein building blocks that can be designed for self-assembly strategies has increased in recent years. If a protein system can successfully be designed, these synthetic proteins allow for tunable functionality and/or stability profiles [19

Sputtering onto liquids: a critical review

• Anastasiya Sergievskaya,
• Adrien Chauvin and
• Stephanos Konstantinidis

Beilstein J. Nanotechnol. 2022, 13, 10–53, doi:10.3762/bjnano.13.2

• production starts from bulk materials that leach out systematically, leading to the generation of NPs. The starting material can be reduced in size using either a physical or a chemical route. On the other hand, the “bottom-up” approach, or self-assembly, refers to building up a structure atom-by-atom or

Topographic signatures and manipulations of Fe atoms, CO molecules and NaCl islands on superconducting Pb(111)

• Carl Drechsel,
• Philipp D’Astolfo,
• Jung-Ching Liu,
• Thilo Glatzel,
• Rémy Pawlak and
• Ernst Meyer

Beilstein J. Nanotechnol. 2022, 13, 1–9, doi:10.3762/bjnano.13.1

• by one with an STM tip in an one-dimensional fashion on an s-wave superconductor [10], this strategy has been primarily postponed in favor of self-assembly processes on Pb(110) surfaces [13][14][15][36]. Only recently, the successful manipulation of tens of Fe atoms has been reported on

Self-assembly of amino acids toward functional biomaterials

• Huan Ren,
• Lifang Wu,
• Lina Tan,
• Yanni Bao,
• Yuchen Ma,
• Yong Jin and
• Qianli Zou

Beilstein J. Nanotechnol. 2021, 12, 1140–1150, doi:10.3762/bjnano.12.85

• . However, the self-assembly of proteins and peptides has disadvantages, such as difficulty in obtaining high quantities of materials, high cost, polydispersity, and purification limitations. The difficulties in using proteins and peptides as functional materials make it more complicate to arrange assembled

• nanostructures at both microscopic and macroscopic scales. Amino acids, as the smallest constituent of proteins and the smallest constituent in the bottom-up approach, are the smallest building blocks that can be self-assembled. The self-assembly of single amino acids has the advantages of low synthesis cost

• acids. Most of the review articles about self-assembly focus on large molecules, such as peptides and proteins. The preparation of complicated materials by self-assembly of amino acids has not yet been evaluated. Therefore, it is of great significance to systematically summarize the literature of amino

Progress and innovation of nanostructured sulfur cathodes and metal-free anodes for room-temperature Na–S batteries

• Marina Tabuyo-Martínez,
• Bernd Wicklein and
• Pilar Aranda

Beilstein J. Nanotechnol. 2021, 12, 995–1020, doi:10.3762/bjnano.12.75

• physical and chemical impregnation, mechanical mixing and self-assembly. Straightforward approaches are sulfur melt and vapor impregnation of suitable matrices. These routes require heating to temperatures above the melting (115 °C) and boiling (446 °C) point of sulfur, respectively. While the former

Molecular assemblies on surfaces: towards physical and electronic decoupling of organic molecules

• Sabine Maier and
• Meike Stöhr

Beilstein J. Nanotechnol. 2021, 12, 950–956, doi:10.3762/bjnano.12.71

• layer; molecular self-assembly; scanning probe microscopy; surface science; Over the past two decades, organic molecules adsorbed on atomically defined metal surfaces have been intensively studied to obtain an in-depth understanding of their self-assembly behavior, on-surface reactivity, as well as

• space. Molecular adsorption and self-assembly are significantly altered compared to metals due to an often weak interaction between organics and bulk insulators. In contrast to face-on adsorption on metals, a tilted and edge-on adsorption becomes possible for planar aromatic molecules on bulk insulators

• due to the lattice mismatch between 2D material and its substrate might serve as structural templates for molecular adsorption and self-assembly [79][80][81][82]. The electronic decoupling depends on the electronic properties of the 2D materials as they can be insulators, semiconductors, semimetals

Self-assembly of Eucalyptus gunnii wax tubules and pure ß-diketone on HOPG and glass

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

Beilstein J. Nanotechnol. 2021, 12, 939–949, doi:10.3762/bjnano.12.70

• that ß-diketone tubules are formed by self-assembly and confirmed that ß-diketone is the shape-determining component for this type of tubules. Keywords: ß-diketone tubules; eucalyptus; plant wax; recrystallization; self-assembly; Introduction The plant cuticle, which is the largest biological

• morphologies are formed by a self-assembly process. On artificial surfaces, waxes recrystallize in three-dimensional structures with similar morphology and related properties as on plant surfaces [14]. Additionally, recrystallization of isolated wax components revealed that usually the main compounds determine

• AFM images of real-time investigation of wax recrystallization on HOPG were captured 10 to 13 min after the evaporation of the solvent. The AFM examination of wax self-assembly on HOPG showed platelets (Figure 3) as seen in SEM analysis. In AFM micrographs, two types of platelets with varying sizes

The role of convolutional neural networks in scanning probe microscopy: a review

• Ido Azuri,
• Irit Rosenhek-Goldian,
• Neta Regev-Rudzki,
• Georg Fantner and
• Sidney R. Cohen

Beilstein J. Nanotechnol. 2021, 12, 878–901, doi:10.3762/bjnano.12.66

Comprehensive review on ultrasound-responsive theranostic nanomaterials: mechanisms, structures and medical applications

• Sepand Tehrani Fateh,
• Lida Moradi,
• Elmira Kohan,
• Michael R. Hamblin and
• Amin Shiralizadeh Dezfuli

Beilstein J. Nanotechnol. 2021, 12, 808–862, doi:10.3762/bjnano.12.64

Physical constraints lead to parallel evolution of micro- and nanostructures of animal adhesive pads: a review

• Thies H. Büscher and
• Stanislav N. Gorb

Beilstein J. Nanotechnol. 2021, 12, 725–743, doi:10.3762/bjnano.12.57

• in the AMS is high and different AMS types coexist in the same groups, the adaptation to the corresponding natural surfaces probably took place in a comparatively short period of time [163]. Using a mathematical model, the potential of self-assembly of the structures observed in the AMS of phasmids

On the stability of microwave-fabricated SERS substrates – chemical and morphological considerations

• Limin Wang,
• Aisha Adebola Womiloju,
• Christiane Höppener,
• Ulrich S. Schubert and
• Stephanie Hoeppener

Beilstein J. Nanotechnol. 2021, 12, 541–551, doi:10.3762/bjnano.12.44

• drop-coating and self-assembly procedures [20][21][22]. Alternatively, monolayers of nanoparticles can be formed directly on substrates by a microwave-assisted one-step fabrication process [23][24] on glass and silicon-based substrates with different shapes (e.g., on flat substrates as well as inside

• the Raman spectroscopic performance of the SERS substrates. After self-assembly of 4-ATP from an ethanolic solution, the substrates were carefully cleaned with ethanol to ensure a complete removal of molecules that were non-specifically attached to the surface. The formation of a monolayer is ensured

• by utilizing a thiol-functionalized test molecule to form a defined monomolecular dense layer of analyte on the surface. Additionally, 4-ATP only binds to silver nanoparticles and does not bind to the underlying glass substrate. The self-assembly time for 4-ATP solutions was kept short to avoid any

Colloidal particle aggregation: mechanism of assembly studied via constructal theory modeling

• Scott C. Bukosky,
• Sukrith Dev,
• Monica S. Allen and
• Jeffery W. Allen

Beilstein J. Nanotechnol. 2021, 12, 413–423, doi:10.3762/bjnano.12.33

• with respect to van der Waals and double layer interactions. Preliminary results show that the particle aggregation behavior depends on the initial lattice configuration and solvent properties. Ultimately, our model provides the first constructal framework for predicting the self-assembly of particles

• and could be expanded upon to fit a range of colloidal systems. Keywords: colloids; constructal law; DLVO theory; interparticle interactions; nanomaterials; self-assembly; tunable systems; Introduction Constructal theory has been used to describe a number of naturally evolving processes/phenomena

• increase in the coordination number. We should note that the results presented here assume the self-assembly of monodisperse spherical particles suspended in a monovalent salt solution arranged in a uniform starting configuration. Given the Brownian nature of colloidal particles, future simulations should

The impact of molecular tumor profiling on the design strategies for targeting myeloid leukemia and EGFR/CD44-positive solid tumors

• Nikola Geskovski,
• Nadica Matevska-Geshkovska,
• Simona Dimchevska Sazdovska,
• Marija Glavas Dodov,
• Kristina Mladenovska and
• Katerina Goracinova

Beilstein J. Nanotechnol. 2021, 12, 375–401, doi:10.3762/bjnano.12.31

Extended iron phthalocyanine islands self-assembled on a Ge(001):H surface

• Rafal Zuzak,
• Marek Szymonski and
• Szymon Godlewski

Beilstein J. Nanotechnol. 2021, 12, 232–241, doi:10.3762/bjnano.12.19

• Rafal Zuzak Marek Szymonski Szymon Godlewski Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, PL 30-348 Kraków, Poland 10.3762/bjnano.12.19 Abstract Self-assembly of iron(II

• ; iron phthalocyanine (FePc); scanning tunneling microscopy; self-assembly; Introduction The development of molecular circuitry requires the preparation of nanostructures isolated from the influence of the underlying substrate. This is of crucial importance for atomic and single-molecule prototypes, but

• holds also for layered materials. Single-molecule prototypes or molecular nanostructures are often prepared on metals, which usually provide a sufficiently low diffusion barrier for efficient self-assembly and simultaneously allow for in-depth analysis through atomically precise tools from the family of

TiO_x/Pt₃Ti(111) surface-directed formation of electronically responsive supramolecular assemblies of tungsten oxide clusters

• Marco Moors,
• Yun An,
• Agnieszka Kuc and
• Kirill Yu. Monakhov

Beilstein J. Nanotechnol. 2021, 12, 203–212, doi:10.3762/bjnano.12.16

• ]. One possibility to achieve this is to create substrate surfaces, whose characteristics would give rise to the nanostructured metal-oxide self-assembly formation. Herein, we demonstrate the potential of this approach using thermal evaporation of WO3 powder under ultra-high vacuum (UHV) on ultrathin

A review on the green and sustainable synthesis of silver nanoparticles and one-dimensional silver nanostructures

• Sina Kaabipour and
• Shohreh Hemmati

Beilstein J. Nanotechnol. 2021, 12, 102–136, doi:10.3762/bjnano.12.9

Electrokinetic characterization of synthetic protein nanoparticles

• Daniel F. Quevedo,
• Cody J. Lentz,
• Adriana Coll de Peña,
• Yazmin Hernandez,
• Nahal Habibi,
• Rikako Miki,
• Joerg Lahann and
• Blanca H. Lapizco-Encinas

Beilstein J. Nanotechnol. 2020, 11, 1556–1567, doi:10.3762/bjnano.11.138

• for producing subcompartments within particles. By localizing proteins at the nanoscale, PNPs could be used to control the release and delivery of therapeutics, theragnostics, and enzymatic cascades [10]. Although previously developed methods to produce PNPs, such as coacervation, self-assembly, and

Optically and electrically driven nanoantennas

• Monika Fleischer,
• Dai Zhang and
• Alfred J. Meixner

Beilstein J. Nanotechnol. 2020, 11, 1542–1545, doi:10.3762/bjnano.11.136

• top-down approaches such as thin film deposition and nanopatterning, as well as bottom-up approaches such as chemical synthesis and self-assembly [38]. Gap sizes may range from a few tens of nanometers down to sub-nanometer tunnel junctions, where the classical description of the plasmonic behavior

• to a sharp tip is refined to a two-step procedure with high throughput. A self-assembly approach to create a dumbbell antenna consisting of a 40 nm and an 80 nm Au nanoparticle at a scanning tip is shown in [48] and applied for single molecule sensitivity imaging. The advantage of applying TERS for

Adsorption and self-assembly of porphyrins on ultrathin CoO films on Ir(100)

• Feifei Xiang,
• Tobias Schmitt,
• Marco Raschmann and
• M. Alexander Schneider

Beilstein J. Nanotechnol. 2020, 11, 1516–1524, doi:10.3762/bjnano.11.134

• films on Ir(100) by scanning tunneling microscopy (STM) and density functional theory (DFT). The two substrates differ greatly with respect to their structural and potential-energy landscape corrugation with immediate consequences for adsorption and self-assembly of the molecules studied. On both films

• , due to the rather flat potential landscape, molecular rotation is thermally activated, which effectively prevents self-assembly. The situation is different for 2H-TCNPP, which, due to the additional functional anchoring groups, does not self-assemble on the 1BL film but forms self-assembled compact

• islands on the 2BL film. The findings demonstrate the guiding effect of the cobalt oxide films of different thickness and the effect of functional surface anchoring. Keywords: adsorption energy; molecular rotors; porphyrins; self-assembly; transition metal oxides; Introduction Due to their variability

Self-assembly and spectroscopic fingerprints of photoactive pyrenyl tectons on hBN/Cu(111)

• Domenik M. Zimmermann,
• Knud Seufert,
• Luka Ðorđević,
• Tobias Hoh,
• Sushobhan Joshi,
• Tomas Marangoni,
• Davide Bonifazi and
• Willi Auwärter

Beilstein J. Nanotechnol. 2020, 11, 1470–1483, doi:10.3762/bjnano.11.130

• -like-disubstituted derivatives governed the self-assembly of the pyrenyl core on the nanostructured hBN support, affording dense-packed arrays and intricate porous networks featuring a kagome lattice. Keywords: electronic structure; hexagonal boron nitride; optical properties; pyrene; self-assembly

• electronic and optical properties of molecular tectons and the respective assemblies must be comprehensively characterized [3][4][5][6]. Diverse self-assembly protocols have been extensively explored on metal substrates, and organic–metal interfaces have been analyzed in great detail [7][8]. In many cases

• superstructure: Depending on the registry of the layer and substrate atoms, the surface is divided in areas of low and high local work function, denoted as “pores” and “wires”, respectively [28][29][30][31]. In recent years, our group and others used hBN/Cu(111) to guide the self-assembly of porphyrins [28][32

Wafer-level integration of self-aligned high aspect ratio silicon 3D structures using the MACE method with Au, Pd, Pt, Cu, and Ir

• Mathias Franz,
• Romy Junghans,
• Paul Schmitt,
• Adriana Szeghalmi and
• Stefan E. Schulz

Beilstein J. Nanotechnol. 2020, 11, 1439–1449, doi:10.3762/bjnano.11.128

• nanoparticles were used to locally etch the silicon substrate. This work demonstrates a bottom-up self-assembly approach for noble metal nanoparticle formation and the subsequent silicon wet etching. The macroscopic wafer patterning has been done by using a poly(methyl methacrylate) masking layer. Different

Growth of a self-assembled monolayer decoupled from the substrate: nucleation on-command using buffer layers

• Robby Reynaerts,
• Kunal S. Mali and
• Steven De Feyter

Beilstein J. Nanotechnol. 2020, 11, 1291–1302, doi:10.3762/bjnano.11.113

• solution–solid interface. One of the ways to influence network formation at this interface is to physically decouple the self-assembled monolayer from the underlying substrate thereby removing the influence of the substrate lattice, if any. Here we show a systematic exploration of self-assembly of a

• layer. We discovered that the self-assembly on top of the buffer layer allows better control over the nanoscale manipulation of the self-assembled networks. Using the influence of the STM tip, we could initiate the nucleation of small isolated domains of the benzoic acid on-command in a reproducible

• fashion. Such controlled nucleation experiments hold promise for studying fundamental processes inherent to the assembly process on surfaces. Keywords: benzoic acid; nucleation; self-assembly; solution–solid interface; substrate effect; Introduction The ability of some molecules to crystalize in more

Hybridization vs decoupling: influence of an h-BN interlayer on the physical properties of a lander-type molecule on Ni(111)

• Maximilian Schaal,
• Takumi Aihara,
• Marco Gruenewald,
• Felix Otto,
• Jari Domke,
• Roman Forker,
• Hiroyuki Yoshida and
• Torsten Fritz

Beilstein J. Nanotechnol. 2020, 11, 1168–1177, doi:10.3762/bjnano.11.101

• mobility. This additional diffusion barrier thus hampers the molecular self-assembly and can be overcome by a higher substrate temperature during the film growth, which agrees with our structural findings above. Conclusion To summarize, we investigated the influence of an h-BN interlayer on the optical

Photothermally active nanoparticles as a promising tool for eliminating bacteria and biofilms

• Mykola Borzenkov,
• Piersandro Pallavicini,
• Angelo Taglietti,
• Laura D’Alfonso,
• Maddalena Collini and
• Giuseppe Chirico

Beilstein J. Nanotechnol. 2020, 11, 1134–1146, doi:10.3762/bjnano.11.98

• achieve the desired temperatures, thus restricting the practical implementation of the bacteria photothermal eradication [33]. The gold nanoparticle self-assembly on glass surfaces is a generally time-consuming process with a relatively poor reproducibility. These restrictions may also limit the full