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

• at a low coverage, for example, PTCDA on Au(433) and Au(778) [16], a 1:1 mixture of PTCDI and 1,4-bis(2,4-diamino-1,3,5-triazine)benzene on Au(11 11 12) [17], and nickel-tetraphenyl-porphyrin on Au (788) [18]. Here, we report on the growth of an organic molecule, namely 5,12-dihydroquino[2,3-b

From a free electron gas to confined states: A mixed island of PTCDA and copper phthalocyanine on Ag(111)

• Alfred J. Weymouth,
• Emily Roche and
• Franz J. Giessibl

Beilstein J. Nanotechnol. 2022, 13, 1572–1577, doi:10.3762/bjnano.13.131

• low concentration as a dopant or at higher concentrations as a mixed layer [2]. Perylenetetracarboxylic dianhydride (PTCDA) is an organic molecule that has been investigated for its properties as an organic semiconductor and as a dye. It is straightforward to evaporate in vacuum and, at submonolayer

Non-stoichiometric magnetite as catalyst for the photocatalytic degradation of phenol and 2,6-dibromo-4-methylphenol – a new approach in water treatment

• Joanna Kisała,
• Anna Tomaszewska and
• Przemysław Kolek

Beilstein J. Nanotechnol. 2022, 13, 1531–1540, doi:10.3762/bjnano.13.126

• the adsorption of organic compounds onto the surface of the catalyst. The sorption power depends largely on the properties of the organic molecule in question, as well as on the properties of the catalyst’s surface. The test reactions were carried out in aqueous solution at pH 8 (due to the hydrolytic

Role of titanium and organic precursors in molecular layer deposition of “titanicone” hybrid materials

• Arbresha Muriqi and
• Michael Nolan

Beilstein J. Nanotechnol. 2022, 13, 1240–1255, doi:10.3762/bjnano.13.103

• group of the organic molecule to a Cl ligand of TiCl3/TiCl2 to release a HCl molecule as by-product and form one new Ti–O bond between the TiCl3/TiCl2 species and the organic molecules. A schematic illustration of titanicone MLD films based on the reactions between the hydroxylated surface and TiCl4 and

• (DMA)4 is bonded to three surface oxygens and to one DMA ligand that can exchange with one organic molecule during the organic precursor pulse. The coordination number of Ti of the Ti(DMA)4 molecule is four and remains unchanged during the ligand loss reactions. The ligand loss reaction mechanism of Ti

• from the terminal OH group of the organic molecule to one DMA ligand of Ti(DMA)4 to release a H–DMA molecule as a by-product coupled with the formation of a new Ti–O bond between Ti and the organic molecule. Figure 7 shows the optimized atomic structures after the introduction of one EG and GL molecule

Revealing local structural properties of an atomically thin MoSe₂ surface using optical microscopy

• Lin Pan,
• Peng Miao,
• Anke Horneber,
• Alfred J. Meixner,
• Pierre-Michel Adam and
• Dai Zhang

Beilstein J. Nanotechnol. 2022, 13, 572–581, doi:10.3762/bjnano.13.49

• SERS signal of CuPc. Therefore, our results clearly demonstrate that local flake structures can be revealed by monitoring the SERS enhancement at organic molecule/2D-TMDCs heterostructures. Conclusion We demonstrated local structure-related optical properties of a CuPc/MoSe2 heterostructure using SHG

Silver nanoparticles nucleated in NaOH-treated halloysite: a potential antimicrobial material

• Yuri B. Matos,
• Rodrigo S. Romanus,
• Mattheus Torquato,
• Edgar H. de Souza,
• Rodrigo L. Villanova,
• Marlene Soares and
• Emilson R. Viana

Beilstein J. Nanotechnol. 2021, 12, 798–807, doi:10.3762/bjnano.12.63

• behaviour is most certainly due to the presence of DIO, a very hydrophobic substance itself. DIO is an organic molecule made of a long carbon chain “tail” attached to a thiol “head” (R-SH), which forms covalent bonds with silver via the sulfur atom. So, by mixing DIO and Ag/HNT-8 one is able to create a

The influence of an interfacial hBN layer on the fluorescence of an organic molecule

• Christine Brülke,
• Oliver Bauer and
• Moritz M. Sokolowski

Beilstein J. Nanotechnol. 2020, 11, 1663–1684, doi:10.3762/bjnano.11.149

• organic molecule 3,4,9,10-perylene tetracarboxylic dianhydride (PTCDA) from the supporting Cu(111) surface by Raman and fluorescence (FL) spectroscopy. The Raman fingerprint-type spectrum of PTCDA served as a monitor for the presence of molecules on the surface. Several broad and weak FL lines between

• to its mechanical [15], chemical [16], and thermal [17] stability, the easy synthesis of hBN monolayers on Cu foils for usage in devices [18], and, finally, the wide structural variety of hBN monolayers depending on the underlying metal substrate [19]. To investigate the decoupling of an organic

• molecule from a metal substrate by a monolayer of hBN we chose PTCDA and the Cu(111) surface. PTCDA serves as a planar model molecule for investigations of organic layers on surfaces [20][21][22][23]. Monolayers of hBN on Cu(111) have been investigated by several groups and are, hence, rather well

Three-dimensional solvation structure of ethanol on carbonate minerals

• Hagen Söngen,
• Ygor Morais Jaques,
• Peter Spijker,
• Christoph Marutschke,
• Stefanie Klassen,
• Ilka Hermes,
• Ralf Bechstein,
• Lidija Zivanovic,
• John Tracey,
• Adam S. Foster and
• Angelika Kühnle

Beilstein J. Nanotechnol. 2020, 11, 891–898, doi:10.3762/bjnano.11.74

• resolution. However, the majority of 3D AFM studies have been focused on the arrangement of water at carbonate surfaces. Here, we present an analysis of the assembly of ethanol – an organic molecule with a single hydroxy group – at the calcite and magnesite (10.4) surfaces by using high-resolution 3D AFM and

Interfacial charge transfer processes in 2D and 3D semiconducting hybrid perovskites: azobenzene as photoswitchable ligand

• Nicole Fillafer,
• Tobias Seewald,
• Lukas Schmidt-Mende and
• Sebastian Polarz

Beilstein J. Nanotechnol. 2020, 11, 466–479, doi:10.3762/bjnano.11.38

• flexible organic molecule. Our next goal is to check if photoswitching is still possible after integration into the perovskite. Sasai et al. reported the photoswitching of azobenzene molecules in a 2D LHP tracking the optical properties of the molecules [41]. The photoswitching properties of the integrated

An advanced structural characterization of templated meso-macroporous carbon monoliths by small- and wide-angle scattering techniques

• Felix M. Badaczewski,
• Marc O. Loeh,
• Torben Pfaff,
• Dirk Wallacher,
• Daniel Clemens and
• Bernd M. Smarsly

Beilstein J. Nanotechnol. 2020, 11, 310–322, doi:10.3762/bjnano.11.23

• mesoporosity of these monolithic carbon materials was studied by the sorption behavior of a relatively large organic molecule (p-xylene) in comparison to typical gas adsorbates (Ar). In addition, to obtain a detailed view on the nanopore space small-angle neutron scattering (SANS) combined with in situ

pH-Controlled fluorescence switching in water-dispersed polymer brushes grafted to modified boron nitride nanotubes for cellular imaging

• Saban Kalay,
• Yurij Stetsyshyn,
• Volodymyr Donchak,
• Khrystyna Harhay,
• Ostap Lishchynskyi,
• Halyna Ohar,
• Yuriy Panchenko,
• Stanislav Voronov and
• Mustafa Çulha

Beilstein J. Nanotechnol. 2019, 10, 2428–2439, doi:10.3762/bjnano.10.233

• fluorescent probes for a number of bio-responsive applications, ranging from drug delivery to genomics [29][30][31]. Similar to other nanotubes, the pristine BNNTs were not fluorescent, and a fluorophore (e.g., organic molecule or quantum dot) is added via surface modification to make them fluorescent [29][30

The role of Ag⁺, Ca²⁺, Pb²⁺ and Al³⁺ adions in the SERS turn-on effect of anionic analytes

• Stefania D. Iancu,
• Andrei Stefancu,
• Vlad Moisoiu,
• Loredana F. Leopold and
• Nicolae Leopold

Beilstein J. Nanotechnol. 2019, 10, 2338–2345, doi:10.3762/bjnano.10.224

• +–halide–organic molecule is formed that allows a charge transfer between the metal surface and the molecule leading to a resonant Raman scattering effect [6][7][8]. Evidence for surface complexes were provided by several SERS experiments on silver electrodes [3][8], but also on colloidal silver

Layered double hydroxide/sepiolite hybrid nanoarchitectures for the controlled release of herbicides

• Ediana Paula Rebitski,
• Margarita Darder and
• Pilar Aranda

Beilstein J. Nanotechnol. 2019, 10, 1679–1690, doi:10.3762/bjnano.10.163

• (Table S1, Supporting Information File 1). This might occur during the coprecipitation of the LDH in the presence of MCPA. Given that this synthesis involves an organic molecule, the hybrid nanoarchitectures were heat-treated at 150 °C as in [31], and also at a lower temperature of 60 °C. Both thermal

• of MCPA by ion exchange was performed using a solution of the herbicide prepared by dissolving 1.5 g of MCPA in 125 mL of ionized water and adjusting its pH value to 7 with 1 M NaOH to assure the presence of the organic molecule as an anion. This solution was slowly added to a dispersion prepared

Outstanding chain-extension effect and high UV resistance of polybutylene succinate containing amino-acid-modified layered double hydroxides

• Adam A. Marek,
• Vincent Verney,
• Christine Taviot-Gueho,
• Grazia Totaro,
• Laura Sisti,
• Annamaria Celli and
• Fabrice Leroux

Beilstein J. Nanotechnol. 2019, 10, 684–695, doi:10.3762/bjnano.10.68

• should require UV absorption properties for the organic molecule, any proteinogenic amino acids presenting cycle in their backbone will be preferentially considered. Tyrosine and tryptophan have been studied for their UV stabilizing properties; however, histidine (HIS) and (PHE) are rarely reported. One

Biocompatible organic–inorganic hybrid materials based on nucleobases and titanium developed by molecular layer deposition

• Leva Momtazi,
• Henrik H. Sønsteby and
• Ola Nilsen

Beilstein J. Nanotechnol. 2019, 10, 399–411, doi:10.3762/bjnano.10.39

• gain of one organic molecule. The mass of isopropanol is 60.10 u, while thymine, uracil and adenine is 126.12, 112.08 and 135.13 u, respectively, approximately twice that of isopropanol. Based on the QCM long-pulse sequences, the overall mass gain during pulsing of any of the organic molecules is

• almost negligible when mass loss during the subsequent purging is included. This observation may indicate that two isopropanol molecules are lost for each organic molecule reacted during its pulse. Such a reaction is possible when considering that all organic molecules have at least two reactive sites

• change in the environment of NH2 and N9–H after coordination with titanium. FTIR analysis was also performed on Ti-nucleobase films prepared with an extra water pulse after the organic molecule, to investigate the hybrid properties of these films. FTIR analysis shows that none of the as-deposited films

Nanoantenna structures for the detection of phonons in nanocrystals

• Alexander G. Milekhin,
• Sergei A. Kuznetsov,
• Ilya A. Milekhin,
• Larisa L. Sveshnikova,
• Tatyana A. Duda,
• Ekaterina E. Rodyakina,
• Alexander V. Latyshev,
• Volodymyr M. Dzhagan and
• Dietrich R. T. Zahn

Beilstein J. Nanotechnol. 2018, 9, 2646–2656, doi:10.3762/bjnano.9.246

• (Ag, Au, Cu, etc.) [5][6][7]. The origin of the IR signal enhancement is the localized electromagnetic field of plasmons excited near metallic surfaces. In the case of flat metal films, the IR response from an organic molecule in the plasmon field can be increased by a factor of 103 [8]. For island

Impact of the anodization time on the photocatalytic activity of TiO₂ nanotubes

• Jesús A. Díaz-Real,
• Geyla C. Dubed-Bandomo,
• Juan Galindo-de-la-Rosa,
• Luis G. Arriaga,
• Janet Ledesma-García and
• Nicolas Alonso-Vante

Beilstein J. Nanotechnol. 2018, 9, 2628–2643, doi:10.3762/bjnano.9.244

• known as current-doubling in which a secondary electron is obtained from the oxidation of an (organic) molecule via surface holes when a semiconductor is excited with suitable photonic irradiation. However, the experimental results do not necessarily correspond to a two-fold increase in jph, especially

Enzymatically promoted release of organic molecules linked to magnetic nanoparticles

• Chiara Lambruschini,
• Silvia Villa,
• Luca Banfi,
• Fabio Canepa,
• Fabio Morana,
• Annalisa Relini,
• Paola Riani,
• Renata Riva and
• Fulvio Silvetti

Beilstein J. Nanotechnol. 2018, 9, 986–999, doi:10.3762/bjnano.9.92

• decided not to bind a real drug, but simply a fluorescent molecule, in order to facilitate analysis of enzymatic cleavage and obtain the first proof of concept of the enzymatic release of a small organic molecule bound to a magnetic nanoparticle. Results and Discussion Magnetite nanoparticles were

• . Conclusion We have successfully demonstrated the possibility to exploit a selective protease-mediated release of an organic molecule from a magnetic nanoparticle. Although in this preliminary investigation the released molecule was only a simple fluorescent substance (pyrenylmethylamine), the same strategy

• can be applied to the release of other substances, including cytotoxic drugs. The tripeptide specifier has been designed in order to selectively release the organic molecule upon the action of a lysine/arginine-selective serine protease, such as trypsin or plasmin. Although the rate of enzymatic

Electronic structure, transport, and collective effects in molecular layered systems

• Torsten Hahn,
• Tim Ludwig,
• Carsten Timm and
• Jens Kortus

Beilstein J. Nanotechnol. 2017, 8, 2094–2105, doi:10.3762/bjnano.8.209

• contact can be reduced by inserting a single layer of graphene between the organic molecule and the metal surface. The model systems used here were built by first relaxing the F16CoPc/MnPc and CoPc/CoPc molecular stacks on top of five-layer metal slabs. In a second step, the model device was built by

Adsorption and electronic properties of pentacene on thin dielectric decoupling layers

• Sebastian Koslowski,
• Daniel Rosenblatt,
• Alexander Kabakchiev,
• Klaus Kuhnke,
• Klaus Kern and
• Uta Schlickum

Beilstein J. Nanotechnol. 2017, 8, 1388–1395, doi:10.3762/bjnano.8.140

• . To understand the principles behind single-molecule devices, the fundamental physics of molecule-metal junctions need to be well understood and controlled. Scanning tunneling microscopy (STM) is particularly suited to not only study the structure of an adsorbed (organic) molecule on the atomic scale

Nanoantenna-assisted plasmonic enhancement of IR absorption of vibrational modes of organic molecules

• Alexander G. Milekhin,
• Olga Cherkasova,
• Sergei A. Kuznetsov,
• Ilya A. Milekhin,
• Ekatherina E. Rodyakina,
• Alexander V. Latyshev,
• Sreetama Banerjee,
• Georgeta Salvan and
• Dietrich R. T. Zahn

Beilstein J. Nanotechnol. 2017, 8, 975–981, doi:10.3762/bjnano.8.99

• . The thermal evaporation of the organic molecule was performed in a vacuum chamber at a pressure of ≈5 × 10−8 mbar. The evaporation temperature was approximately 400 °C and the deposition rate was ≈0.5 nm/min. During the organic film growth, the substrate was kept at room temperature. Cortisol (11β

Large-scale fabrication of achiral plasmonic metamaterials with giant chiroptical response

• Morten Slyngborg,
• Yao-Chung Tsao and
• Peter Fojan

Beilstein J. Nanotechnol. 2016, 7, 914–925, doi:10.3762/bjnano.7.83

• altering the interpore distance and the glancing angle for metal deposition it was possible to tune the obtained CD signals from UV all the way to IR wavelengths. As a proof of concept, the resonance shifts of SPPs were studied upon interactions between a protein or a chiral organic molecule and the ECM

• usual fabrication techniques as the achievable sample area is much smaller than the beam profile. Sensing of chiral molecules As a proof of concept, the sensing power of the honeycomb ECMs were investigated by monitoring the resonance shift upon adsorption of the chiral organic molecule cysteamine and

• technique while retaining control and order of the resulting arrays. This signifies a substantial improvement to standard fabrication methods such as focused ion beam and electron beam lithography concerning cost and production time. Furthermore, the use of a small chiral organic molecule and a protein has

Hierarchical coassembly of DNA–triptycene hybrid molecular building blocks and zinc protoporphyrin IX

• Rina Kumari,
• Sumit Singh,
• Mohan Monisha,
• Sourav Bhowmick,
• Anindya Roy,
• Neeladri Das and
• Prolay Das

Beilstein J. Nanotechnol. 2016, 7, 697–707, doi:10.3762/bjnano.7.62

• composite DNA nanostructures by the self-assembly of complementary symmetrical 2,6,14-triptycenetripropiolic acid (TPA)–DNA building blocks and zinc protoporphyrin IX (Zn PpIX). DNA–organic molecule scaffolds for the composite DNA nanostructure were constructed through covalent conjugation of TPA with 5

• time we report the construction and subsequent self-assembly of DNA–organic hybrid using triptycene as the organic molecule that allows for the definite disposition of the DNA strands in three dimensions. Triptycene is an interesting molecule having D3h symmetry with Y-shaped structure. It has

Two step formation of metal aggregates by surface X-ray radiolysis under Langmuir monolayers: 2D followed by 3D growth

• Smita Mukherjee,
• Marie-Claude Fauré,
• Michel Goldmann and
• Philippe Fontaine

Beilstein J. Nanotechnol. 2015, 6, 2406–2411, doi:10.3762/bjnano.6.247

• -assembly properties of surfactant molecules in solution. By the choice of the organic molecule, we can tune the surface charge of the formed self-assembly in order to attract the ions in their vicinity. Therefore, we expect that during the irradiation process, the aggregation of the reduced atoms takes

• should differ since the interfaces are different (water/Ag below and organic molecule/air above). Such difference should induce a curvature of the platelet, which could rupture when the surface energy reaches a critical value. This could lead to the disorientation of the platelets and the formation of

Influence of surface chemical properties on the toxicity of engineered zinc oxide nanoparticles to embryonic zebrafish

• Zitao Zhou,
• Jino Son,
• Bryan Harper,
• Zheng Zhou and
• Stacey Harper

Beilstein J. Nanotechnol. 2015, 6, 1568–1579, doi:10.3762/bjnano.6.160

• late-onset mortality in coated particles is the result of decreased dissolution of these particles [7][21]. It has been reported that the release of zinc ion from ZnO NPs coated with organic molecule can be slower than uncoated ZnO NPs by up to 10 days, due to the protective effect of the surface