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

• -assembled particles, cover slides described in the previous section were used. The slides were dried under vacuum and then adhered onto an aluminum sample holder using carbon tape. The samples were coated with platinum for 30 s using an EM ACE200 vacuum coater (Leica Microsystems GmbH, Wetzlar, Germany

Recent progress in cancer cell membrane-based nanoparticles for biomedical applications

• Qixiong Lin,
• Yueyou Peng,
• Yanyan Wen,
• Xiaoqiong Li,
• Donglian Du,
• Weibin Dai,
• Wei Tian and
• Yanfeng Meng

Beilstein J. Nanotechnol. 2023, 14, 262–279, doi:10.3762/bjnano.14.24

• treatment of tumors [88]. Cancer cell bionanotechnology provides a new way to overcome the shortcomings of conventional treatments. Platinum-based drugs are the mainstream first-line chemotherapy for clinical tumors [89]. However, numerous unavoidable problems, such as drug resistance and side effects, have

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

• endogenous H2O2 by Fenton-type reactions without photoirradiation [83][84]. A nanomedicine was prepared from (i) β-CyD bearing both a ferrocene and a platinum(IV) complex (–O–PtIV(Cl2)2(NH3)2(OH)) as prodrug of cisplatin and (ii) poly(ethylene glycol) terminated by ferrocene [85]. The ferrocene molecules

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

• an efficient Pt-based catalyst for polymer electrolyte membrane fuel cells (PEMFCs) by using a cost-effective and efficient physical method to deposit platinum nanoparticles (PtNPs) on carbon supports directly from the platinum target. The method developed avoids the chemical functionalization of the

• carbon substrate and the chemical synthesis of PtNPs during catalyst fabrication. Platinum was deposited on carbon particles at room temperature using a pulsed laser deposition (PLD) system equipped with an ArF excimer laser (λ = 193 nm). The uniform deposition of PtNPs on carbon supports was achieved

• thanks to a specially designed electromechanical system that mixed the carbon support particles during platinum deposition. In the studies, Vulcan XC-72R carbon black powder, a popular material used as support in the anodes and cathodes of PEMFCs, and a porous carbon material with a high degree of

The influence of structure and local structural defects on the magnetic properties of cobalt nanofilms

• Alexander Vakhrushev,
• Aleksey Fedotov,
• Olesya Severyukhina and
• Anatolie Sidorenko

Beilstein J. Nanotechnol. 2023, 14, 23–33, doi:10.3762/bjnano.14.3

• contacts [35], which are successfully implemented in memory and information storage devices. A similar layered heterostructure, but with the addition of a thin platinum film necessary for the generation of spin–orbit bonds, is also described in [36]. Comprehensive research on new promising materials is a

Rapid and sensitive detection of box turtles using an electrochemical DNA biosensor based on a gold/graphene nanocomposite

• Abu Hashem,
• M. A. Motalib Hossain,
• Ab Rahman Marlinda,
• Mohammad Al Mamun,
• Khanom Simarani and
• Mohd Rafie Johan

Beilstein J. Nanotechnol. 2022, 13, 1458–1472, doi:10.3762/bjnano.13.120

• ssDNA recognition elements [31]. As per our observation, this is the first application of an electrochemical DNA biosensor for BT detection. Kusnin et al. [57] employed silicon nanowires/platinum nanoparticles (SiNWs/PtNPs) on a SPCE for the detection of porcine DNA. The few studies conducted earlier

Growing up in a rough world: scaling of frictional adhesion and morphology of the Tokay gecko (Gekko gecko)

• Anthony J. Cobos and
• Timothy E. Higham

Beilstein J. Nanotechnol. 2022, 13, 1292–1302, doi:10.3762/bjnano.13.107

• unit to dehydrate the tissue prior to imaging. They were then placed on a double stick conductive carbon tape affixed to a stub and sputter coated with a platinum/palladium coating. Toes were then viewed using a ThermoFisher Scientific Quanta™ 3D 200i SEM in the Central Facility for Advanced Microscopy

Studies of probe tip materials by atomic force microscopy: a review

• Ke Xu and
• Yuzhe Liu

Beilstein J. Nanotechnol. 2022, 13, 1256–1267, doi:10.3762/bjnano.13.104

• , such as copper, silver, platinum, etc. Thus, it is also possible to prepare electrochemical colloidal probes (eCPs) with other metals. eCPs under electrochemical control of colloidal probes have potential in various research areas such as adhesion science, tribology or long-range interactions. eCPs

Electrocatalytic oxygen reduction activity of AgCoCu oxides on reduced graphene oxide in alkaline media

• Iyyappan Madakannu,
• Indrajit Patil,
• Bhalchandra Kakade and
• Kasibhatta Kumara Ramanatha Datta

Beilstein J. Nanotechnol. 2022, 13, 1020–1029, doi:10.3762/bjnano.13.89

• , Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur – 603203, Tamil Nadu, India 10.3762/bjnano.13.89 Abstract Silver-based electrocatalysts as promising substitutes for platinum materials for cathodic oxygen electroreduction have been extensively researched

• the overall performance of the reaction [3][4]. There is an increasing use of platinum catalysts with diverse morphologies and the combination with noble and non-noble metal-based alloy/multimetallic nanoparticles (NPs) as potential electrocatalysts under extreme pH values [5][6][7][8][9][10][11][12

Temperature and chemical effects on the interfacial energy between a Ga–In–Sn eutectic liquid alloy and nanoscopic asperities

• Yujin Han,
• Pierre-Marie Thebault,
• Corentin Audes,
• Xuelin Wang,
• Haiwoong Park,
• Jian-Zhong Jiang and
• Arnaud Caron

Beilstein J. Nanotechnol. 2022, 13, 817–827, doi:10.3762/bjnano.13.72

• nN and the sliding velocity to vs = 4 µm/s. Depending on the tip chemistry, we determined different roughness values ranging from Rq = 4.48 nm with a gold tip to Rq = 10.13 nm with a platinum silicide tip. This dependence on the tip chemistry likely originates from different capillary interactions

• the increase of the interfacial energy with the temperature based on the growth of an interfacial oxide layer. We suggest that tip material comes into solution in the Ga–In–Sn eutectic melt for the gold and platinum silicide tips. Though not verified here, we speculate that the partial and thermally

• results in the largest interfacial energy measured in this work. In the case of gold and platinum silicide, the interfacial energy decreases in proportion to the surface energy of the tip material. Moreover, we observe a positive thermal sensitivity of the interfacial energy, which we explain based on

A nonenzymatic reduced graphene oxide-based nanosensor for parathion

• Sarani Sen,
• Anurag Roy,
• Ambarish Sanyal and
• Parukuttyamma Sujatha Devi

Beilstein J. Nanotechnol. 2022, 13, 730–744, doi:10.3762/bjnano.13.65

• Technologies, USA), which was connected by a three-electrode system, including a modified and/or unmodified GCE as the working electrode, a saturated Ag/AgCl as the reference electrode (RE), and a platinum wire as the counter electrode (CE). The electrochemical impedance spectroscopy (EIS) study of the

Reliable fabrication of transparent conducting films by cascade centrifugation and Langmuir–Blodgett deposition of electrochemically exfoliated graphene

• Teodora Vićentić,
• Stevan Andrić,
• Vladimir Rajić and
• Marko Spasenović

Beilstein J. Nanotechnol. 2022, 13, 666–674, doi:10.3762/bjnano.13.58

• substrates with dimensions of ca. 2 cm × 1 cm (Figure 2a). Although a great number of different types of substrate materials have been used, such as silica [37], chromium [38], tin [39], silver [40], or platinum [41], glass substrates were used in this paper. Glass is generally a popular choice, not just

Influence of thickness and morphology of MoS₂ on the performance of counter electrodes in dye-sensitized solar cells

• Lam Thuy Thi Mai,
• Hai Viet Le,
• Ngan Kim Thi Nguyen,
• Van La Tran Pham,
• Thu Anh Thi Nguyen,
• Nguyen Thanh Le Huynh and
• Hoang Thai Nguyen

Beilstein J. Nanotechnol. 2022, 13, 528–537, doi:10.3762/bjnano.13.44

• City, 700000, Vietnam Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, 700000, Vietnam 10.3762/bjnano.13.44 Abstract Non-platinum electrodes for photoelectric devices are challenging and attractive to the scientific community. A thin film of molybdenum

• disulfide (MoS2) was prepared on substrates coated with fluorine-doped tin oxide (FTO) to substitute the platinum counter electrode (CE) for dye-sensitized solar cells (DSSCs). Herein, we synthesized layered and honeycomb-like MoS2 thin films via the cyclic voltammetry (CV) route. Thickness and morphology

• and respectable efficiency [1]. This promising third generation of solar cells contains a dye-adsorbed TiO2 photoanode, an iodide/triiodide electrolyte, and a platinum-based cathode, also known as the counter electrode (CE). However, the high cost of platinum has prevented the real-world application of

A chemiresistive sensor array based on polyaniline nanocomposites and machine learning classification

• Jiri Kroutil,
• Alexandr Laposa,
• Ali Ahmad,
• Jan Voves,
• Vojtech Povolny,
• Ladislav Klimsa,
• Marina Davydova and
• Miroslav Husak

Beilstein J. Nanotechnol. 2022, 13, 411–423, doi:10.3762/bjnano.13.34

• the corrosion resistance. The width and spacing of interdigitated electrodes are 100 µm. The heating element (surface-mounted device SMD0402 resistor with an electric resistance of 50 Ω) and a platinum temperature sensor (SMD0603 Pt1000) are placed on the bottom side of each sensor by soldering with

Photothermal ablation of murine melanomas by Fe₃O₄ nanoparticle clusters

• Xue Wang,
• Lili Xuan and
• Ying Pan

Beilstein J. Nanotechnol. 2022, 13, 255–264, doi:10.3762/bjnano.13.20

• reverse-transcribed to cDNA using HiScript II 1st Strand cDNA Synthesis Kit (Vazyme). Benchtop PCR was performed on a GeneAmp PCR System 9700 machine in a 50 µL reaction volume: 1× PCR buffer (with Mg2+), 0.2 mM dNTP, 0.2 µM primers, 50 ng of template cDNA, and 0.5 µL of Platinum TaqDNA polymerase

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

• where platinum/copper (Pt/Cu) NPs were obtained by using an alloy target for the sputtering onto polyethylene glycol (PEG), it was reported that increasing the current from 10 to 50 mA leads to the formation of bigger NPs, from 1.3 to 4.5 nm, respectively [127

Chemical vapor deposition of germanium-rich CrGe_x nanowires

• Vladislav Dřínek,
• Stanislav Tiagulskyi,
• Roman Yatskiv,
• Jan Grym,
• Radek Fajgar,
• Věra Jandová,
• Martin Koštejn and
• Jaroslav Kupčík

Beilstein J. Nanotechnol. 2021, 12, 1365–1371, doi:10.3762/bjnano.12.100

• carbon–platinum composite using focused electron beam-induced deposition (FEBID) (Supporting Information File 1, Figure S10). The resistivity of the nanowire–deposit system was estimated to be 2.7 kΩ·cm (Figure 5). This value is significantly higher than the previously reported resistivity for nominally

Morphology-driven gas sensing by fabricated fractals: A review

• Vishal Kamathe and
• Rupali Nagar

Beilstein J. Nanotechnol. 2021, 12, 1187–1208, doi:10.3762/bjnano.12.88

• to some excellent articles on hierarchical gas sensors that address such geometries [8][30][33][37]. Tin oxide-based fractals Yin et al. reported SnO2 nanoparticles with and without platinum (Pt) decoration synthesized using a sol–gel hydrothermal technique for gas sensing applications [63]. Figure

The effect of cobalt on morphology, structure, and ORR activity of electrospun carbon fibre mats in aqueous alkaline environments

• Markus Gehring,
• Tobias Kutsch,
• Osmane Camara,
• Alexandre Merlen,
• Hermann Tempel,
• Hans Kungl and
• Rüdiger-A. Eichel

Beilstein J. Nanotechnol. 2021, 12, 1173–1186, doi:10.3762/bjnano.12.87

• the electrode of 3 cm2 using 6 M KOH electrolyte (KOH: 85%, VWR, France; deionised water: 0.055 μS·cm−1, Purelab flex, Elga Veolia, United Kingdom). The reference electrode was a mercury/mercury oxide electrode (MMO; ALS, Japan) and the counter electrode was a platinum wire. Cells were assembled and

Irradiation-driven molecular dynamics simulation of the FEBID process for Pt(PF₃)₄

• Alexey Prosvetov,
• Alexey V. Verkhovtsev,
• Gennady Sushko and
• Andrey V. Solov’yov

Beilstein J. Nanotechnol. 2021, 12, 1151–1172, doi:10.3762/bjnano.12.86

• molecule, on a SiO2 surface. The simulations reveal the processes driving the initial phase of nanostructure formation during FEBID, including the nucleation of Pt atoms and the formation of small metal clusters on the surface, followed by their aggregation and the formation of dendritic platinum

• deposition; irradiation-driven molecular dynamics; irradiation-induced chemistry; platinum nanostructures; reactive force fields; Introduction The controllable fabrication of nanostructures with nanoscale resolution remains a considerable scientific and technological challenge [1]. To address this challenge

• Pt(PF3)4, a widely studied precursor molecule [21][22][23][24][25][26], on a fully hydroxylated SiO2 surface. As such, this work extends the earlier IDMD-based studies [13][15] of the FEBID of W(CO)6 towards another precursor molecule that has been commonly used to fabricate platinum-containing

Is the Ne operation of the helium ion microscope suitable for electron backscatter diffraction sample preparation?

• Annalena Wolff

Beilstein J. Nanotechnol. 2021, 12, 965–983, doi:10.3762/bjnano.12.73

Uniform arrays of gold nanoelectrodes with tuneable recess depth

• Elena O. Gordeeva,
• Ilya V. Roslyakov,
• Alexey P. Leontiev,
• Alexey A. Klimenko and
• Kirill S. Napolskii

Beilstein J. Nanotechnol. 2021, 12, 957–964, doi:10.3762/bjnano.12.72

• deposited by magnetron sputtering onto the bottom side of the AAO template. Electrodeposition of metals into channels of the AAO template was performed in a three-electrode cell with an electrodeposition area of 0.2 cm2 and a volume of 50 mL at room temperature in a potentiostatic mode. A platinum ring

The role of deep eutectic solvents and carrageenan in synthesizing biocompatible anisotropic metal nanoparticles

• Nabojit Das,
• Akash Kumar and
• Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2021, 12, 924–938, doi:10.3762/bjnano.12.69

• platinum, are showing excellent potential owing to their unique physicochemical properties. DESs were first used for synthesizing anisotropic gold nanoparticles with high monodispersity in a mixture of choline chloride and urea in 2008 by Sun and co-workers [27]. The anisotropy was driven using the mild

• reducing agent ascorbic acid and the DES. The result was remarkable as the synthesis involved no surfactant or seeds. The Sun group also synthesized platinum nanoflowers of ca. 200 nm size with high monodispersity using DESs [93]. The group also successfully synthesized triambic icosahedral (TIH) Pt

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

• compared to non-treated samples [154]. Other researchers have developed platinum-based NPs for sonodynamic therapy and ROS generation in both extra- and intracellular environments [155]. The schematic illustration of this mechanism is presented in Figure 2. Ultrasound-responsive nanomaterials Various

Recent progress in actuation technologies of micro/nanorobots

• Ke Xu and
• Bing Liu

Beilstein J. Nanotechnol. 2021, 12, 756–765, doi:10.3762/bjnano.12.59

• micro/nanorobots. Traditional piezoelectric actuators are suitable for millimeter-sized robots, but not for the micro/nanoscale. Therefore, the innovation was to design a new type of electrochemical actuator and to use it as legs of the robot. It was made of nanoscale platinum and manufactured by a

• robot in 2002. The terminal of this micro/nanorobot was equipped with a platinum-plated porous glass filter, which can generate a large amount of oxygen through decomposition of H2O2 on the platinum surface and generate an actuation force at the interface between H2O2 solution and air to push the robot

• previous research, Bao et al. [38] innovatively designed a V-shaped micro/nanorobot made of platinum only. The nanorobot is propelled by oxygen molecules generated by the decomposition of H2O2 and can maintain a rotating motion and navigate in a stable trajectory. Compared with previous studies, the