Study of the reusability and stability of nylon nanofibres as an antibody immobilisation surface

• Inés Peraile,
• Matilde Gil-García,
• Laura González-López,
• Nushin A. Dabbagh-Escalante,
• Juan C. Cabria-Ramos and
• Paloma Lorenzo-Lozano

Beilstein J. Nanotechnol. 2024, 15, 83–94, doi:10.3762/bjnano.15.8

• the antibody by hydrophobic interactions through binding sites inside of its three-dimensional structure [21][22]. The polar side chains are located on the outside of the protein molecule, allowing the protein to form hydrogen bonds with nylon. On the other hand, nylon is a polyamide that contains

• amide groups and free amine groups at the ends of its polymer chains, as well as carboxyl groups. These amide and amine groups provide excellent hydrogen bonding sites [23][24]. Regarding the binding of antibody to protein A/G, it has been described that this occurs at pH values between 5 and 8 because

• pH 11, but not strongly acidic pH levels such as 2.5, could impart a negative charge to the carboxylic acid groups in both protein A/G and nylon NFs, preventing hydrogen bonds between them. Acidic pH, such as pH 2.5, does not alter the binding of protein A/G to nylon. However, bare nylon nanofibres

Influence of conductive carbon and MnCo₂O₄ on morphological and electrical properties of hydrogels for electrochemical energy conversion

• Sylwia Pawłowska,
• Karolina Cysewska,
• Yasamin Ziai,
• Jakub Karczewski,
• Piotr Jasiński and
• Sebastian Molin

Beilstein J. Nanotechnol. 2024, 15, 57–70, doi:10.3762/bjnano.15.6

• ; hydrogel; hydrogen; oxygen evolution reaction; polymer composites; Introduction Hydrogels are defined as a group of polymeric materials with an insoluble hydrophilic structure which gives them the ability to absorb and hold large amounts of water (up to over 99 wt %) in their three-dimensional network

• interactions, ionic cross-linking, and hydrogen-bonded gels). Chemically synthesised hydrogels are produced by covalent cross-linking pathways such as radical polymerisation, radiation cross-linking, grafting, thermogelation, enzymatic reactions, and click chemistry [4][5]. Hydrogel materials have quite a long

• ], and environmental [17][18]. In recent years, scientists have been very interested in the use of hydrogels in electrocatalytic water splitting to produce hydrogen from renewable energy sources. These studies assume the use of empty spaces, thus ensuring efficient mass transport, as well as increasing

Fluorescent bioinspired albumin/polydopamine nanoparticles and their interactions with Escherichia coli cells

• Eloïse Equy,
• Jordana Hirtzel,
• Sophie Hellé,
• Béatrice Heurtault,
• Eric Mathieu,
• Morgane Rabineau,
• Vincent Ball and
• Lydie Ploux

Beilstein J. Nanotechnol. 2023, 14, 1208–1224, doi:10.3762/bjnano.14.100

• KE diad (e.g., catestatin) [13]. During the formation process, hydroxy groups of dopamine form hydrogen bonds with carboxylic groups (COO−) of glutamate (pKa = 4.3), whereas protonated amino groups (NH3+) of lysine (pKa = 10.5) further stabilize the aggregate by cation–π interactions with the

A combined gas-phase dissociative ionization, dissociative electron attachment and deposition study on the potential FEBID precursor [Au(CH₃)₂Cl]₂

• Elif Bilgilisoy,
• Ali Kamali,
• Thomas Xaver Gentner,
• Gerd Ballmann,
• Sjoerd Harder,
• Hans-Peter Steinrück,
• Hubertus Marbach and
• Oddur Ingólfsson

Beilstein J. Nanotechnol. 2023, 14, 1178–1199, doi:10.3762/bjnano.14.98

• progression shows the loss of one chlorine atom and two, three, and four methyl ligands at m/z 458, 444, and 429, respectively. From these, m/z 458 has lost an additional hydrogen and m/z 444 overlaps with lesser contributions from m/z 443, which we also attribute to additional hydrogen loss. Similar to the

• are of similar intensity, although the loss of three methyl ligands, m/z 408, is slightly more apparent. Lesser contribution is also observed at m/z 407 and is attributed to additional hydrogen loss as compared to that of m/z 408. The last progression is from the loss of both chlorine atoms along with

• value at the DLPNO-CCSD(T)-TZVP level of theory agrees well with the experimental AE value. The next progression observed in the mass spectrum, m/z 458, 444, and 429, constitutes a progressive loss of the methyl ligands along with the loss of one chlorine and partly additional hydrogen loss. We find the

Properties of tin oxide films grown by atomic layer deposition from tin tetraiodide and ozone

• Kristjan Kalam,
• Peeter Ritslaid,
• Tanel Käämbre,
• Aile Tamm and
• Kaupo Kukli

Beilstein J. Nanotechnol. 2023, 14, 1085–1092, doi:10.3762/bjnano.14.89

• precursor combinations for obtaining SnO2 in atomic layer deposition (ALD) processes [9]. Two of these processes have employed SnI4 as the metal precursor with either O2 [10][11][12][13][14] or H2O2 [10][11][15] as oxidizer. Of these two oxygen sources, O2 would be more desirable because with it a hydrogen

Recognition mechanisms of hemoglobin particles by monocytes – CD163 may just be one

• Jonathan-Gabriel Nimz,
• Pichayut Rerkshanandana,
• Chiraphat Kloypan,
• Ulrich Kalus,
• Saranya Chaiwaree,
• Axel Pruß,
• Radostina Georgieva,
• Yu Xiong and
• Hans Bäumler

Beilstein J. Nanotechnol. 2023, 14, 1028–1040, doi:10.3762/bjnano.14.85

• emerging hydrogen bonds, altered surface structures, and possible interactions between proteins and particles, in particular polymers such as HbMPs [45][46]. The adsorption of various plasma proteins seems to not only enhance the chance of complement activation but also to promote phagocytosis directly, as

Exploring internal structures and properties of terpolymer fibers via real-space characterizations

• Michael R. Roenbeck and
• Kenneth E. Strawhecker

Beilstein J. Nanotechnol. 2023, 14, 1004–1017, doi:10.3762/bjnano.14.83

• molecular “bends” within DPE molecules) or weak intermolecular interactions (e.g., due to distributions in monomers capable of intermolecular hydrogen bonding) may make it energetically favorable for sets of molecules to branch apart at different junctures rather than to remain together within a fibril

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

• , bleaching, and degradation. Gold nanoparticles possess intrinsic peroxidase-like activity, which converts particular peroxidase substrates into coloured products in the presence of hydrogen peroxide. The enzyme-like properties of nanomaterials have been utilized in various LFA formats. The inclusion of

Isolation of cubic Si₃P₄ in the form of nanocrystals

• Polina K. Nikiforova,
• Sergei S. Bubenov,
• Vadim B. Platonov,
• Andrey S. Kumskov,
• Nikolay N. Kononov,
• Tatyana A. Kuznetsova and
• Sergey G. Dorofeev

Beilstein J. Nanotechnol. 2023, 14, 971–979, doi:10.3762/bjnano.14.80

• were conducted. A synthesis at 400 °C was performed in order to observe the influence of hydrogen preservation on the process of formation of the new compound as well as to attempt postsynthetic hydrosilylation to protect the particle cores from air and moisture. A temperature range of 400 to 500 °C

• was shown to be consistent with Si–H bond cleavage and hydrogen desorption from silicon surfaces [29] (including Si NPs [30]) with the bond completely disappearing at 700 °C as indicated by FTIR spectra [31][32][33]. A temperature of 900 °C was chosen to assess the probability of formation of another

• nature of HF). The total etching time was 20 min (HF vapor etching of Si NPs doped with P results in the removal of the oxide layer after 15 min of etching [42]). It should be mentioned that Si NPs with hydrogen-terminated surfaces rapidly oxidize when exposed to air even at room temperatures [43][44

Low temperature atomic layer deposition of cobalt using dicobalt hexacarbonyl-1-heptyne as precursor

• Mathias Franz,
• Mahnaz Safian Jouzdani,
• Lysann Kaßner,
• Marcus Daniel,
• Frank Stahr and
• Stefan E. Schulz

Beilstein J. Nanotechnol. 2023, 14, 951–963, doi:10.3762/bjnano.14.78

• operates at low temperatures using dicobalt hexacarbonyl-1-heptyne [Co2(CO)6HC≡CC5H11] and hydrogen plasma. For this precursor an ALD window in the temperature range between 50 and 110 °C was determined with a constant deposition rate of approximately 0.1 Å/cycle. The upper limit of the ALD window is

• cobalt precursor delivery and without any further reacting gases. The precursor was provided via the showerhead over the whole wafer surface. The depositions were done at 90, 100, 125, and 150 °C. The ALD depositions were carried out with molecular hydrogen (H2) as second precursor. During the H2 pulsing

• time of 6 s has been chosen to reach the saturation state safely. The purging time after the precursor pulse also may affect the deposition rate. Insufficient purging may result in an increased deposition rate as the remaining precursor can directly react in the gas phase within the hydrogen plasma

Antibody-conjugated nanoparticles for target-specific drug delivery of chemotherapeutics

• Mamta Kumari,
• Amitabha Acharya and
• Praveen Thaggikuppe Krishnamurthy

Beilstein J. Nanotechnol. 2023, 14, 912–926, doi:10.3762/bjnano.14.75

• , which includes physical adsorption and electrostatic binding (Figure 3) [38]. Physical adsorption consists of either non-covalent weak hydrophobic or electrostatic hydrogen bonding, or attractive van der Waals interaction between antibodies and NPs [39]. Ionic binding, in contrast, involves an

Ni, Co, Zn, and Cu metal-organic framework-based nanomaterials for electrochemical reduction of CO₂: A review

• Ha Huu Do and
• Hai Bang Truong

Beilstein J. Nanotechnol. 2023, 14, 904–911, doi:10.3762/bjnano.14.74

• valuable compounds through electrochemical reduction. The electrocatalytic process for CO2 reduction reactions (CO2RR) encounters a persistent obstacle in the activation of CO2 [4]. The formation of CO2•− necessitates a high thermodynamic potential of −1.90 V vs the standard hydrogen electrode

• exhibited the highest activity for CO2RR to carbon monoxide (FE = 81% at −1.1 V vs RHE). This can be explained by the fact that ZIF-8 has the smallest adsorption energy of hydrogen, facilitating the desired CO2RR process. The outcomes of this study serve as a foundation for the exploration of transition

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

• synthesis of molecular building blocks have enabled the construction of well-organized nanoarchitectures with various dimensions [8][9][10][11]. These characteristic structural formations are governed by self-assembly processes via non-covalent intermolecular interactions, such as hydrogen bonding, metal

• and in real time [38][39][40][41][42]. In the 2D assemblies at the solid/liquid interface, non-covalent interactions play an essential role in the molecular orientation and arrangement. Among the intermolecular interactions, directional and relatively strong interactions, such as hydrogen bonding

• hydrogen atoms of n-dodecane with a trans zigzag conformation are located near the centers of the six-membered rings of C96H24, and the molecule is oriented along one of the lattice directions of C96H24, indicated by the blue arrows. In STM imaging, changes in bias voltage (V) and tunneling current (I

N-Heterocyclic carbene-based gold etchants

• Robert B. Chevalier,
• Justin Pantano,
• Matthew K. Kiesewetter and
• Jason R. Dwyer

Beilstein J. Nanotechnol. 2023, 14, 865–871, doi:10.3762/bjnano.14.71

• self-assembled monolayers (SAMs) on gold. We examined several different species that have been used to produce NHC-based monolayers on gold, namely 1,3-diisopropyl-5-nitrobenzimidazolium iodide, 1,3-diisopropyl-5-nitrobenzimidazolium hydrogen carbonate, bis(1,3-diisopropyl-5-nitrobenzimidazolium)gold(I

• two different solution-based surface functionalization routes. One involved the deprotonation of a benzimidazolium precursor in toluene under air-free conditions. The other was in methanol and took advantage of the equilibrium between a benzimidazolium hydrogen carbonate salt and free carbene with

• hydrogen carbonate (2), bis(1,3-diisopropyl-5-nitrobenzimidazolium)gold(I) iodide (3), and 1,3-diisopropyl-5-nitrobenzimidazole-2-ylidene (4). Photograph of examples of gold-coated tokens before (left) and after (right) immersion for 2 h in a 3.60 × 10−2 M solution of 1 in DCM. Scratches were introduced by

Ultralow-energy amorphization of contaminated silicon samples investigated by molecular dynamics

• Grégoire R. N. Defoort-Levkov,
• Alan Bahm and
• Patrick Philipp

Beilstein J. Nanotechnol. 2023, 14, 834–849, doi:10.3762/bjnano.14.68

• previous article [26]. To summarize, they are composed of a set of two interatomic potentials. One is the reactive force field (ReaxFF) [29] designed to compute the bonds between silicon, oxygen, and hydrogen atoms, as well as to compute the distribution of partial charges to model the formation and

• , argon–hydrogen, and argon–oxygen interactions. In the Morse potential, the interatomic interactions depend only on the distance between the two atoms and not on their charge state, which is implicitly taken into account. Hence, the sample is bombarded with neutral atoms, an approach commonly used in MD

• . The 500 subsequent bombardments with their collision cascades lead to the displacement of target atoms, creating disorder and point defects. Hydrogen and oxygen atoms get mixed into the target and can get trapped at interstitial or vacancy sites. The different kind of defects are not intrinsically

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

• from Krackeler Scientific (USA). Methyl alcohol, hydrogen peroxide (35%), sodium hydroxide (<97%), ammonia water (25–29%), acetone (99.5%), ethyl alcohol (95%), and 2-propanol (99.5%) were bought from Daejung (Republic of Korea). The Formlabs 3D printer and clear V4 resin were purchased from Formlabs

Control of morphology and crystallinity of CNTs in flame synthesis with one-dimensional reaction zone

• Muhammad Hilmi Ibrahim,
• Norikhwan Hamzah,
• Mohd Zamri Mohd Yusop,
• Ni Luh Wulan Septiani and
• Mohd Fairus Mohd Yasin

Beilstein J. Nanotechnol. 2023, 14, 741–750, doi:10.3762/bjnano.14.61

• front, and flame composition [9]. A premixed flat flame was utilized by Zhang et al. [10] to synthesize single-walled CNTs (SWCNTs) through rich hydrogen/air combustion with a ferrocene catalyst. The temperature profile was estimated to be relatively uniform across HAB values up to 10 mm. An increase in

• CNT yield was observed at a high mass flux of hydrogen/air at a fixed equivalence ratio, resulting in higher temperature and an increase in IG/ID ratio of up to ten times. A similar approach in spray pyrolysis CVD by Casanova et al. [11], utilizing ferrocene catalyst with cyclohexanol as a carbon

Cross-sectional Kelvin probe force microscopy on III–V epitaxial multilayer stacks: challenges and perspectives

• Mattia da Lisca,
• José Alvarez,
• James P. Connolly,
• Nicolas Vaissiere,
• Karim Mekhazni,
• Jean Decobert and
• Jean-Paul Kleider

Beilstein J. Nanotechnol. 2023, 14, 725–737, doi:10.3762/bjnano.14.59

• ), and arsine (AsH3) were the source materials, with hydrogen (H2) as a carrier gas. Diethylzinc (DEZn) was used as a source of Zn for p-type doping the InP:Zn and the phosphorus-based quaternary (GaInAsP:Zn) and GaInAs:Zn layers. The precursor flow was varied to cover a doping level range from 1 × 1018

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

• was used whereas for water splitting natural sunlight was used [24][25][26]. These results are mentioned as scaling up photocatalytic systems to reach net zero emission goals and the next technology to produce green hydrogen energy [14]. Up-to-date trending topics on photocatalysts based on

• Wee-Jun Ong Ho Chi Minh City and Sepang, June 2023. A general photocatalytic mechanism for several possible target processes: (1) NOx degradation, (2) water splitting for hydrogen and oxygen evolution reactions, (3) degradation of organic pollutants, and (4) solar cell application. Acknowledgements

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

• physisorption of the second layer, that is, H2O molecules forming hydrogen bonds with the hydroxy groups [23][29][32]. This enables the formation of H+ and H3O+ ions, for example, when a proton is transferred from a hydroxy group to a water molecule [33]. A further increase of humidity up to ca. 90% causes the

• formation of additional physisorbed H2O layers through hydrogen bonding (Figure 3e). The conduction process occurs by the Grotthuss mechanism [29][33][34] of H+ hopping through the network of H2O molecules on the surface (H3O+ + H2O ↔ H2O + H3O+). Higher humidity causes increased concentration of H+ and

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

• biomolecules via electrostatic forces, stacking, and/or hydrogen bonding, which lead to high accumulation of the target analyte, are another factor that supports the development of electrochemical sensors. However, because of the high proportion of organic ligands, most MOFs have poor electrical conductivity

Titania nanoparticles for photocatalytic degradation of ethanol under simulated solar light

• Evghenii Goncearenco,
• Iuliana P. Morjan,
• Claudiu Teodor Fleaca,
• Florian Dumitrache,
• Elena Dutu,
• Monica Scarisoreanu,
• Valentin Serban Teodorescu,
• Alexandra Sandulescu,
• Crina Anastasescu and
• Ioan Balint

Beilstein J. Nanotechnol. 2023, 14, 616–630, doi:10.3762/bjnano.14.51

• ][18]. Moreover, investigations have shown the possibility for applying TiO2 in hydrogen production by water decomposition [19][20][21][22][23]. Given the TiO2 bandgap, it is considered a low-efficiency material in photodriven water splitting, because only 3% of the solar light can be used. Different

• approaches were tried to reduce the bandgap [24] by doping with, for example, nitrogen [17]. Recent investigations have shown a possible application of TiO2 for the photocatalytic production of hydrogen from water with the aid of sacrificial agents, such as methanol, ethanol, or glycols [21][22]. There are

• many studies carried out in gas and liquid phases concerning the photodegradation of ethanol through TiO2-based materials, targeting both hydrogen production [25][26] and the photocatalytic oxidation of ethanol to CO2 [27][28]. Hydrogen production and depollution via ethanol photodegradation are of

Evaluation of electrosynthesized reduced graphene oxide–Ni/Fe/Co-based (oxy)hydroxide catalysts towards the oxygen evolution reaction

• Karolina Cysewska,
• Marcin Łapiński,
• Marcin Zając,
• Jakub Karczewski,
• Piotr Jasiński and
• Sebastian Molin

Beilstein J. Nanotechnol. 2023, 14, 420–433, doi:10.3762/bjnano.14.34

• catalysts specifically influenced the process. The improvement in the OER by NiFe-GO results mainly from the structure of NiFe and the electroactive surface area of GO. Keywords: electrocatalysts; electrodeposition; energy; hydrogen; oxygen evolution reaction; Introduction Nowadays, the industrial

• production of hydrogen energy is focused mainly on hydrocarbon reforming, which is a low-efficiency and environmentally unfriendly process [1][2]. As an alternative, water electrolysis using renewable energy sources has recently been extensively studied [3]. The main limitation to the efficiency of this

• working electrode was coated or bare nickel foam with an exposed area of 0.25 cm2, while the reference electrode was a reversible hydrogen electrode (RHE) (Gaskatel). The electrochemical cell was purged with argon for 20 min before each experiment. The measurements were performed in an aqueous solution of

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

• the interaction between peptides with physiological proteins. Through the study, the selection and rapid design of peptides based on peptide binding sites, hydrogen bond number, and binding affinity were obtained. It was also concluded the potential role of these peptides in the prevention of