In situ optical sub-wavelength thickness control of porous anodic aluminum oxide

• Aleksandrs Dutovs,
• Raimonds Popļausks,
• Oskars Putāns,
• Vladislavs Perkanuks,
• Aušrinė Jurkevičiūtė,
• Tomas Tamulevičius,
• Uldis Malinovskis,
• Iryna Olyshevets,
• Donats Erts and
• Juris Prikulis

Beilstein J. Nanotechnol. 2024, 15, 126–133, doi:10.3762/bjnano.15.12

• , Latvia Faculty of Physics, Mathematics and Optometry, University of Latvia, 3 Jelgavas Str., Riga LV-1004, Latvia 10.3762/bjnano.15.12 Abstract Porous anodic aluminum oxide (PAAO), sometimes referred to as nanoporous anodic alumina, serves as a cost-effective template for nanofabrication in many fields

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

• parameters for silicon given by Jean et al. [28] in their work on simulations of nanoporous silicon and germanium. In that work, an isotropic model based on a parabolic fit is used for the description of the dispersion relations of the acoustic phonons. Since we are not attempting to obtain exact

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

• absorption level for samples in a given series, it can be seen that an increase in the amount of deposited metal causes a decrease in light absorption, which is related to a decrease in surface roughness and the filling of the nanoporous GaN structure with silver. SERS performance of fabricated of GaN/Ag

Molecular nanoarchitectonics: unification of nanotechnology and molecular/materials science

• Katsuhiko Ariga

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

• on-surface synthetic nanoarchitectonics. Coronoids are compounds possessing both polycyclic aromatic macrocycles and defined cavities. Because of their unique electronic structures, they receive much attention. The electronic properties of these nanoporous graphene-like compounds are modified through

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

Nanotechnology – a robust tool for fighting the challenges of drug resistance in non-small cell lung cancer

• Filip Gorachinov,
• Fatima Mraiche,
• Diala Alhaj Moustafa,
• Ola Hishari,
• Yomna Ismail,
• Jensa Joseph,
• Maja Simonoska Crcarevska,
• Marija Glavas Dodov,
• Nikola Geskovski and
• Katerina Goracinova

Beilstein J. Nanotechnol. 2023, 14, 240–261, doi:10.3762/bjnano.14.23

• )-functionalized nanoporous silica particles loaded with a poly(ʟ-glutamic acid) pH-cleavable linker–doxorubicin conjugate, which self-assembles into NPs after its release from the iNPG [114]. Li et al. designed a multistage nanocarrier for NSCLC targeting, composed of icotinib-loaded amphiphilic chitosan micelles

Combining physical vapor deposition structuration with dealloying for the creation of a highly efficient SERS platform

• Adrien Chauvin,
• Walter Puglisi,
• Damien Thiry,
• Cristina Satriano,
• Rony Snyders and
• Carla Bittencourt

Beilstein J. Nanotechnol. 2023, 14, 83–94, doi:10.3762/bjnano.14.10

• alloy thin film to be dealloyed. After dealloying, the resulting silver nanoporous structures revealed two degrees of porosity: macroporosity, associated to the initial alloy morphology, and nanoporosity, related to the dealloying step. The resulting nanoporous columnar structure was finely optimized by

• rhodamine B. Keywords: dealloying; magnetron sputtering; nanoporous thin film; nanostructuring; SERS; Introduction Pollutant residues are strictly regulated in most countries to ensure water and food safety. In this context, there is an increasing demand for pollutant analysis tools with practical and

• suspension [15]. However, NPs suspensions are hard to handle, suffer from poor stability, and can hardly be reused [6]. In this perspective, major interest has been devoted to developing solid SERS platforms made of nanostructured thin films [15][16]. Among them, nanoporous materials show superior properties

Straight roads into nowhere – obvious and not-so-obvious biological models for ferrophobic surfaces

• Wilfried Konrad,
• Christoph Neinhuis and
• Anita Roth-Nebelsick

Beilstein J. Nanotechnol. 2022, 13, 1345–1360, doi:10.3762/bjnano.13.111

• segmentation of the water conduit network into compartments. Each pit pore connects two conduits, and this joint pore space is separated by a special nanoporous membrane, the pit membrane (Figure 4). When a conduit becomes dysfunctional due to embolism, the nanopores within the pit membranes prevent the

• open longitudinally. Panel (b) shows a scanning electron microscope image of two adjacent conduits (denoted “1” and “2”). The conduits are connected by pits (some are highlighted by the green area) containing the pit membrane, which is a special nanoporous membrane. (c) Detailed image showing a pit

Engineered titania nanomaterials in advanced clinical applications

• Padmavati Sahare,
• Paulina Govea Alvarez,
• Juan Manual Sanchez Yanez,
• Gabriel Luna-Bárcenas,
• Samik Chakraborty,
• Sujay Paul and
• Miriam Estevez

Beilstein J. Nanotechnol. 2022, 13, 201–218, doi:10.3762/bjnano.13.15

• might be used in orthopedics as drug-releasing implants and as an alternative delivery system of chemotherapeutic agents to brain tumors [105]. In this context, Jarosz et al. found that the hydrophilic nature of nanoporous TiO2 influences the loading and release profile of drug molecules [106]. Moreover

• , nanoporous TiO2 is able to load water-soluble and insoluble drugs and could be useful as an effective drug delivery system [107]. Previously, a drug delivery system based on TiO2 nps conjugated with doxorubicin (DOX) was found have an enhanced anti-cancerous effect on human hepatocarcinoma SMMC-7721 cells

A comprehensive review on electrospun nanohybrid membranes for wastewater treatment

• Senuri Kumarage,
• Imalka Munaweera and
• Nilwala Kottegoda

Beilstein J. Nanotechnol. 2022, 13, 137–159, doi:10.3762/bjnano.13.10

• . Lin et al. discovered that THF, a solvent with high vapor pressure, formed nanoporous PS fiber sheaths. Decreasing the vapor pressure of the solvent system by adding DMF, a solvent with low vapor pressure, caused the pores to vanish [37]. In contrast, Putti et al. observed porous fibers of PCL when

A review on slip boundary conditions at the nanoscale: recent development and applications

• Ruifei Wang,
• Jin Chai,
• Bobo Luo,
• Xiong Liu,
• Jianting Zhang,
• Min Wu,
• Mingdan Wei and
• Zhuanyue Ma

Beilstein J. Nanotechnol. 2021, 12, 1237–1251, doi:10.3762/bjnano.12.91

• and fabrication of nanofluidic devices. In addition, understanding the slip flow behavior in nanoporous media is also of great significance in the field of development of shale reservoirs [22]. The shale oil transport could be enhanced due to the positive slip length compared with that of the no-slip

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

• this material, improved results are obtained with a cycle life of up to 400 cycles and a small capacity decay rate of 0.044% per cycle. Moreover, Chen et al. [33] reported the potential use of metal-organic frameworks as cathode skeleton. Herein, a sulfur host based on a nanoporous nitrogen-doped

Nanogenerator-based self-powered sensors for data collection

• Yicheng Shao,
• Maoliang Shen,
• Yuankai Zhou,
• Xin Cui,
• Lijie Li and
• Yan Zhang

Beilstein J. Nanotechnol. 2021, 12, 680–693, doi:10.3762/bjnano.12.54

• ion triboelectric nanosensor [16]. By adding three ligand molecules to the surface of nanoporous anodic aluminum oxide, the detection sensitivity for Cu2+, Pb2+, and Cr3+ reached 0.005 × 10−6, 0.003 × 10−6, and 0.004 × 10−6 M, respectively. The self-powered tribo-nanosensor generates different output

A review of defect engineering, ion implantation, and nanofabrication using the helium ion microscope

• Frances I. Allen

Beilstein J. Nanotechnol. 2021, 12, 633–664, doi:10.3762/bjnano.12.52

• silicon substrate supporting an amorphous nanoporous aluminum oxide structure was irradiated with helium ions causing dome-shaped swelling of the substrate and thereby 3D deformation of the supported material, accompanied by enlargement of the nanopores to accommodate the new topography [96]. 3

• responsible for the thinning effect encountered. In a related study, helium ion irradiation of an amorphous nanoporous aluminum oxide sample caused pores to markedly shrink in size, also attributed to ion-induced mass transport [96] (Figure 4b). Further related to mass transport, local helium ion irradiation

Nanoporous and nonporous conjugated donor–acceptor polymer semiconductors for photocatalytic hydrogen production

• Zhao-Qi Sheng,
• Yu-Qin Xing,
• Yan Chen,
• Guang Zhang,
• Shi-Yong Liu and
• Long Chen

Beilstein J. Nanotechnol. 2021, 12, 607–623, doi:10.3762/bjnano.12.50

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

Scanning transmission imaging in the helium ion microscope using a microchannel plate with a delay line detector

• Eduardo Serralta,
• Nico Klingner,
• Olivier De Castro,
• Michael Mousley,
• Santhana Eswara,
• Serge Duarte Pinto,
• Tom Wirtz and
• Gregor Hlawacek

Beilstein J. Nanotechnol. 2020, 11, 1854–1864, doi:10.3762/bjnano.11.167

• responsible for the observed mismatch. Beam steering and channeling Polycrystalline silicon A 15 nm thick nanoporous polycrystalline silicon membrane (available from Electron Microscopy Sciences, item number: 76042–79) has been investigated using STIM. In Figure 4b–f we present several STIM images, which were

• upper left half and gold deposited on the lower left half. (b) TRIDYN simulation of the angular distribution of the transmitted beam. Helium ion microscopy images of the nanoporous polycrystalline silicon membrane. (a) SE image. (b) BF STIM image with polar angle θ < 3° and ϕ from 0 to 360°. Post

Oxidation of Au/Ag films by oxygen plasma: phase separation and generation of nanoporosity

• Abdel-Aziz El Mel,
• Said A. Mansour,
• Mujaheed Pasha,
• Atef Zekri,
• Janarthanan Ponraj,
• Akshath Shetty and
• Yousef Haik

Beilstein J. Nanotechnol. 2020, 11, 1608–1614, doi:10.3762/bjnano.11.143

• silver and gold. In addition, it was shown that the preferential oxidation of silver resulted in a solid-state diffusion of silver toward the surface where it oxidized and formed nanoporous microspheres. The gold phase remaining in the film exhibited nanoporosity due to the injected vacancies at the

• : metal alloys; nanoporous; oxygen plasma; silver; thin films; Introduction Silver corrosion upon exposure to atomic oxygen is a phenomenon that was highly studied in the 1980s. At that time, the main aim was to avoid the degradation of silver interconnects and switches used in satellites navigating in

• the low earth orbit (LEO) [1][2][3][4][5][6][7][8][9]. Silver degradation related to this phenomenon was attributed to the strong chemical reaction between silver and atomic oxygen present in the LEO resulting in the transformation of the metallic silver into highly stressed and nanoporous silver

Fabrication of nano/microstructures for SERS substrates using an electrochemical method

• Jingran Zhang,
• Tianqi Jia,
• Xiaoping Li,
• Junjie Yang,
• Zhengkai Li,
• Guangfeng Shi,
• Xinming Zhang and
• Zuobin Wang

Beilstein J. Nanotechnol. 2020, 11, 1568–1576, doi:10.3762/bjnano.11.139

• . [42] used a nanoporous template of AAO as a SERS substrate, and varied the thickness of either the Au film or the AAO itself. An enhancement factor of 107 was obtained with an Au thickness of 20 nm and an AAO thickness of 100 nm. Using an AAO template, Aflatoxin B1 (AFB1) from peanut extract was

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

• features cannot be achieved with dense silicon, i.e., a nanoporous silicon anode is required for a successful integration [8]. Also, integrated capacitors can benefit from the increased surface of nanowires with high aspect ratio. In combination with atomic layer deposition, one can fabricate integrated

• underneath the noble metal [13]. The second mechanism involves two holes (n = 2). Per etched Si atom one H2 molecule is formed. This etching mechanism is not limited to the metal–silicon interface and occurs in a wider area around the noble metal. This etching mechanism mainly results in nanoporous sponge

• created nanoporous sponge-like structures, which consist of various pinholes with a diameter below 1 nm. This shows that the etching was dominated by the second etching mechanism where n = 2. Higher H2O2 concentrations lead to significant structural destruction, including the delamination of wide areas

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

• tested [53]. It was shown that gold-nanoshell-modified surfaces can effectively kill E. faecalis on silicone surfaces under NIR irradiation. Several bacterial strains (E. coli, Bacillus subtilis, Exiguobacterium sp. AT1b), deposited on surfaces precoated with nanoporous gold disks, were inactivated after

Highly sensitive detection of estradiol by a SERS sensor based on TiO₂ covered with gold nanoparticles

• Andrea Brognara,
• Ili F. Mohamad Ali Nasri,
• Beatrice R. Bricchi,
• Andrea Li Bassi,
• Caroline Gauchotte-Lindsay,
• Matteo Ghidelli and
• Nathalie Lidgi-Guigui

Beilstein J. Nanotechnol. 2020, 11, 1026–1035, doi:10.3762/bjnano.11.87

• Procédés et des Matériaux (LSPM), CNRS, Université Sorbonne Paris Nord, 93430, Villetaneuse, France CSPBAT, UMR 7244, Université Sorbonne Paris Nord, 93430 Villetaneuse, France 10.3762/bjnano.11.87 Abstract We propose the use of gold nanoparticles grown on the surface of nanoporous TiO2 films as surface

• quantification is possible between 1 nM and 10 µM, i.e., the sensor has a dynamic range of at least four orders of magnitude. Conclusion TiO2 nanoporous surfaces covered with Au NPs were tested as SERS surfaces for the detection of 17β-estradiol. Different conditions of Au deposition were considered as they lead

Gas-sensing features of nanostructured tellurium thin films

• Dumitru Tsiulyanu

Beilstein J. Nanotechnol. 2020, 11, 1010–1018, doi:10.3762/bjnano.11.85

• suitable explanation for the reduction in the response and recovery times with the increase in temperature might be the shift in the adsorption–desorption equilibrium, pointed out in Langmuir's theory [31]. The nanostructuring of Te-based films by growing amorphous Te on nanoporous Al2O3 substrates (Figure

A 3D-polyphenylalanine network inside porous alumina: Synthesis and characterization of an inorganic–organic composite membrane

• Jonathan Stott and
• Jörg J. Schneider

Beilstein J. Nanotechnol. 2020, 11, 938–951, doi:10.3762/bjnano.11.78

• oligomerization [19][20][21]. Films of poly(γ-benzyl-ʟ-glutamate) were surface-grafted within nanoporous anodic alumina (AAO) by surface-initiated polymerization of poly(γ-benzyl-ʟ-glutamate)-NCA [22][23]. Three-dimensional fibrillar networks consisting of supramolecular assemblies of oligomers or polypeptides