Effect of wavelength and liquid on formation of Ag, Au, Ag/Au nanoparticles via picosecond laser ablation and SERS-based detection of DMMP

• Sree Satya Bharati Moram,
• Chandu Byram and
• Venugopal Rao Soma

Beilstein J. Nanotechnol. 2024, 15, 1054–1069, doi:10.3762/bjnano.15.86

• -dispersive X-ray spectroscopy. Furthermore, NPs of various sizes ranging from 6 to 35 nm were loaded onto a filter paper by a simple and effective drop-casting approach to achieve flexible surface-enhanced Raman spectroscopy (SERS) substrates/sensors. These substrates were tested using a simple, portable

• . Subsequently, metal and alloy NPs synthesized via laser ablation (encompassing 18 distinct samples) were applied to the FP through a straightforward drop-casting method and then allowed to dry at room temperature. Following this, the analyte of interest was also applied onto the substrate using drop casting

• distribution of NPs on a FP was analyzed using the INCA software with a field-emission scanning electron microscope (FESEM, Carl Zeiss Ultra 55). Samples were prepared by drop casting 10 µL of NPs onto a FP, followed by sputtering a thin conductive layer of gold onto the FP to facilitate lower magnification

Intermixing of MoS₂ and WS₂ photocatalysts toward methylene blue photodegradation

• Maryam Al Qaydi,
• Nitul S. Rajput,
• Michael Lejeune,
• Abdellatif Bouchalkha,
• Mimoun El Marssi,
• Steevy Cordette,
• Chaouki Kasmi and
• Mustapha Jouiad

Beilstein J. Nanotechnol. 2024, 15, 817–829, doi:10.3762/bjnano.15.68

• considered samples. The specimens were prepared by drop casting a solution of the exfoliated samples on lacey carbon transmission electron microscopy (TEM) grids. Additionally, agglomeration of the flakes can be usually observed as well, which could be due to the effect of the solvent used for drop casting

• microscope (Cs-corrected Titan, Thermo Fisher Scientific). Thin carbon-coated Cu mesh grids were used to prepare TEM samples by the drop-casting method. The surface chemical bonding states and composition of the samples were determined with a scanning XPS microprobe (PHI VersaProbe III, Physical Electronics

Heat-induced morphological changes in silver nanowires deposited on a patterned silicon substrate

• Elyad Damerchi,
• Sven Oras,
• Edgars Butanovs,
• Allar Liivlaid,
• Mikk Antsov,
• Boris Polyakov,
• Annamarija Trausa,
• Veronika Zadin,
• Andreas Kyritsakis,
• Loïc Vidal,
• Karine Mougin,
• Siim Pikker and
• Sergei Vlassov

Beilstein J. Nanotechnol. 2024, 15, 435–446, doi:10.3762/bjnano.15.39

• , which corresponds to the angle between (111) and (001) planes in Si. Samples for heat-treatment studies were prepared by drop-casting Ag NWs onto the patterned substrates from a solution. Since the width and period of the holes were intentionally made much smaller than the average length of NWs, many

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

• –1100 nm. The mass concentration of Si3P4 material in the sol (for the sake of attenuation coefficient calculation) was determined by drop casting 3.00 μL of the sol onto a sapphire substrate followed by an XRF study of the resultant film. DFT-GGA computations (structure optimization and calculation of

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

• converting individual MOFs into MOF-derived carbon-support nanomaterials. Another issue is the durability of the working electrodes. Many studies have employed drop casting and the use of binders to affix MOFs onto the substrate for electrode fabrication. This approach presents drawbacks such as reduced

A graphene quantum dots–glassy carbon electrode-based electrochemical sensor for monitoring malathion

• Sanju Tanwar,
• Aditi Sharma and
• Dhirendra Mathur

Beilstein J. Nanotechnol. 2023, 14, 701–710, doi:10.3762/bjnano.14.56

• diffraction were used to characterize the morphological and structural properties of GQDs. An electrochemical sensor was developed by drop casting GQDs on a glassy carbon electrode (GCE). The sensor detects the organophosphate pesticide malathion in a selective and sensitive manner. Using cyclic voltammetry

• organophosphate pesticide malathion. Graphene quantum dots were synthesized hydrothermally using glucose as precursor. The glassy carbon electrode that served as working electrode in the electrochemical cell was modified with graphene quantum dots by drop casting. To evaluate the modified electrode’s oxidation

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

Conjugated photothermal materials and structure design for solar steam generation

• Chia-Yang Lin and
• Tsuyoshi Michinobu

Beilstein J. Nanotechnol. 2023, 14, 454–466, doi:10.3762/bjnano.14.36

• PDA as a PTM to improve the chemical stability and light absorption ability [49]. The Ni1Co3@PDA was dispersed onto the surface of a round commercial sponge by drop casting. The photothermal performance of the Ni1Co3@PDA deposited on the sponge was then evaluated using a kerosene lamp-like setup

Structural, optical, and bioimaging characterization of carbon quantum dots solvothermally synthesized from o-phenylenediamine

• Zoran M. Marković,
• Milica D. Budimir,
• Martin Danko,
• Dušan D. Milivojević,
• Pavel Kubat,
• Danica Z. Zmejkoski,
• Vladimir B. Pavlović,
• Marija M. Mojsin,
• Milena J. Stevanović and
• Biljana M. Todorović Marković

Beilstein J. Nanotechnol. 2023, 14, 165–174, doi:10.3762/bjnano.14.17

• ), CQDs were deposited on graphene oxide copper grids with 300 mesh by drop casting. For AFM imaging, all CQDs samples were deposited on freshly cleaved mica. The AFM measurements were conducted using a Quesant microscope operating in tapping mode in air at ambient temperature. Statistical analysis of all

• AFM images was performed in Gwyddion software [51]. FTIR measurements were conducted using an infrared microscope Nicolet iN10 Thermofisher Scientific operated in the ATR mode. All samples were deposited on Si substrates by drop casting. Spectra were recorded at ambient temperature in the range of 400

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

• for hybridisation efficiency. In the drop-casting method, there is little scope to conduct experiments at variable pH values due to the use of the microlitre scale solution. Usually, DNA hybridisation efficiency peaks between pH 7.5 and 8.5 due to good accessibility and binding affinity [62]. For this

Nickel nanoparticle-decorated reduced graphene oxide/WO₃ nanocomposite – a promising candidate for gas sensing

• Ilka Simon,
• Alexandr Savitsky,
• Rolf Mülhaupt,
• Vladimir Pankov and
• Christoph Janiak

Beilstein J. Nanotechnol. 2021, 12, 343–353, doi:10.3762/bjnano.12.28

• . TEM samples were prepared by drop casting the with acetonitrile diluted material on 200 µm carbon-coated copper grids, followed by washing the grid several times with acetonitrile to remove the excess ionic liquid. The size distribution was determined manually or with the aid of the Gatan Digital

Fusion of purple membranes triggered by immobilization on carbon nanomembranes

• René Riedel,
• Natalie Frese,
• Fang Yang,
• Martin Wortmann,
• Raphael Dalpke,
• Daniel Rhinow,
• Norbert Hampp and
• Armin Gölzhäuser

Beilstein J. Nanotechnol. 2021, 12, 93–101, doi:10.3762/bjnano.12.8

• ) using distilled water. The OD was measured at 589 nm using a UV–vis spectrometer (Lambda 35, Perkin Elmer). Sample preparation Drop casting: PM solutions of different volumes and concentrations were dripped onto the CNM substrates and incubated for different periods. Drying was prevented by putting the

• synthesis route is well established and the resulting CNM has reactive amino head groups that can be functionalized in subsequent experiments. The functionalization of the CNM is necessary to immobilize the PM patches by chemical complex formation after deposition. In a first step, simple drop-casting

• optimistic that complete substrate coverage can be achieved through further optimization measures. One approach would be to alternate the polarity of the electric field several times after deposition to remove unbound PM patches. WT PM deposited on NBPT CNM using drop-casting and electrophoretic

High-responsivity hybrid α-Ag₂S/Si photodetector prepared by pulsed laser ablation in liquid

• Raid A. Ismail,
• Hanan A. Rawdhan and
• Duha S. Ahmed

Beilstein J. Nanotechnol. 2020, 11, 1596–1607, doi:10.3762/bjnano.11.142

• Optics, Germany). An Ag2S/Si photodetector was prepared by depositing a Ag2S layer on the front side of a silicon substrate through a mask by drop-casting. A single-crystal p-type silicon (111) substrate with an electrical resistivity of 3–5 Ω·cm and a thickness of 300 μm was used. As shown in Figure 2

A few-layer graphene/chlorin e6 hybrid nanomaterial and its application in photodynamic therapy against Candida albicans

• Selene Acosta,
• Carlos Moreno-Aguilar,
• Dania Hernández-Sánchez,
• Beatriz Morales-Cruzado,
• Erick Sarmiento-Gomez,
• Carla Bittencourt,
• Luis Octavio Sánchez-Vargas and
• Mildred Quintana

Beilstein J. Nanotechnol. 2020, 11, 1054–1061, doi:10.3762/bjnano.11.90

• preparation of the samples was done by the “drop casting” technique by depositing 100 μL of the FLG-Ce6 solution on the TEM grids (200 mesh, cooper, carbon only) and drying them in vacuum for 48 h. Photoactivation The illumination source consists of 6 LEDs connected in parallel and distributed as follows

The effect of heat treatment on the morphology and mobility of Au nanoparticles

• Sven Oras,
• Sergei Vlassov,
• Simon Vigonski,
• Boris Polyakov,
• Mikk Antsov,
• Vahur Zadin,
• Rünno Lõhmus and
• Karine Mougin

Beilstein J. Nanotechnol. 2020, 11, 61–67, doi:10.3762/bjnano.11.6

• ]. The solution was stirred for 5 min and then stored at 4 °C until needed [10]. Annealing The silicon wafers (100, n/phosphorus-doped, 3–6 ohm·cm, Mat-Technology) were cleaned with ethanol and the NPs were deposited by drop-casting. The drops were dried at ambient conditions. Five samples of Au NPs on

Self-assembly of a terbium(III) 1D coordination polymer on mica

• Quentin Evrard,
• Giuseppe Cucinotta,
• Felix Houard,
• Guillaume Calvez,
• Yan Suffren,
• Carole Daiguebonne,
• Olivier Guillou,
• Andrea Caneschi,
• Matteo Mannini and
• Kevin Bernot

Beilstein J. Nanotechnol. 2019, 10, 2440–2448, doi:10.3762/bjnano.10.234

• the observed objects. Results Coordination polymer growth on mica The [Tb(hfac)3·2H2O]n molecular nanochains have been grown via drop casting of a dilute cyclohexane solution on a freshly air-cleaved mica substrate. The mica substrate was chosen because of its low roughness [23] making it particularly

• deposition (Figure 1) was carried out at room temperature by drop casting of a 0.35 mM cyclohexane solution of [Tb(hfac)3·2H2O]n onto the mica surface. Key parameters were the 24-hour aging of the samples at room temperature and the relative humidity of 90%. AFM was used to study the deposited material

Nontoxic pyrite iron sulfide nanocrystals as second electron acceptor in PTB7:PC₇₁BM-based organic photovoltaic cells

• Olivia Amargós-Reyes,
• José-Luis Maldonado,
• Omar Martínez-Alvarez,
• María-Elena Nicho,
• José Santos-Cruz,
• Juan Nicasio-Collazo,
• Irving Caballero-Quintana and
• Concepción Arenas-Arrocena

Beilstein J. Nanotechnol. 2019, 10, 2238–2250, doi:10.3762/bjnano.10.216

• an alternative top electrode, which we attached by free vacuum deposition. The FM is composed of 32.5% Bi, 51% In and 16.5% Sn and is characterized by a melting point of around 62 °C. It was deposited on the active layer/PFN by drop casting (or doctor blade) at low temperature (≈95 °C) and

• . The active area (0.07 cm2) was delimited with Scotch tape. The FM top electrode was deposited (after melting it at 95 °C in a hot plate) on top of the PFN layer by drop casting, using the previously reported procedure [34]. The final device structure is as follows: glass (1.1 mm)/ITO (≈165 nm

• by drop casting. Mechanically cut Pt–Ir wires were used as STM tips. Before the deposition of each film, HOPG substrates were cleaved by using the adhesive tape technique to obtain an atomically clean surface. Cyclic voltammetry (CV) measurements were carried out using a PARSTAT 2273 potentiostat in

Optimization and performance of nitrogen-doped carbon dots as a color conversion layer for white-LED applications

• Tugrul Guner,
• Hurriyet Yuce,
• Didem Tascioglu,
• Eren Simsek,
• Umut Savaci,
• Aziz Genc,
• Servet Turan and
• Mustafa M. Demir

Beilstein J. Nanotechnol. 2019, 10, 2004–2013, doi:10.3762/bjnano.10.197

• these samples can, in principle, be considered as a good approach to produce white light. So far, we have investigated the white-light properties of WLEDs comprised of drop-cast PVP/N-CDot composite films with and without red phosphor. In addition to preparing PVP/N-CDot composite films via drop-casting

• obtained from one single electrospinning process. In contrast, only a single layer is obtained at a time via the drop-casting approach. Furthermore, instead of directly varying the amount of N-CDots (µL) contained in the color conversion layers, as it was done in the previous measurements, one can adjust

Synthesis of nickel/gallium nanoalloys using a dual-source approach in 1-alkyl-3-methylimidazole ionic liquids

• Ilka Simon,
• Julius Hornung,
• Juri Barthel,
• Jörg Thomas,
• Maik Finze,
• Roland A. Fischer and
• Christoph Janiak

Beilstein J. Nanotechnol. 2019, 10, 1754–1767, doi:10.3762/bjnano.10.171

• several points with a spatial resolution of 1 nm2 (acquisition time of 30 s at each point). The instrumental errors of this high-resolution EDX scan led to an estimated standard deviation of 10–15% relative error. TEM samples were prepared by drop-casting the diluted material on 200 µm carbon-coated

Materials nanoarchitectonics at two-dimensional liquid interfaces

• Katsuhiko Ariga,
• Michio Matsumoto,
• Taizo Mori and
• Lok Kumar Shrestha

Beilstein J. Nanotechnol. 2019, 10, 1559–1587, doi:10.3762/bjnano.10.153

• drop-casting, the long axis of oligo(p-phenylenevinylene) molecules is arranged perpendicularly to the substrate. Intra-fiber energy transfer efficiently occurs in the entangled nanofibers. Long-range excitation energy transfers are advantageous for excitation energy transfer. In contrast, the oligo(p

Tailoring the magnetic properties of cobalt ferrite nanoparticles using the polyol process

• Malek Bibani,
• Romain Breitwieser,
• Alex Aubert,
• Vincent Loyau,
• Silvana Mercone,
• Souad Ammar and
• Fayna Mammeri

Beilstein J. Nanotechnol. 2019, 10, 1166–1176, doi:10.3762/bjnano.10.116

• . This observation has been made after syntheses with TetEG and TriEG, and after drop casting the same quantity of NPs under the same conditions. In the sub-stoichiometric series, Co-0.67-TriEG-3 NPs exhibit the highest degree of aggregation. Magnetic properties Standard magnetometry has been carried out

Self-assembly and wetting properties of gold nanorod–CTAB molecules on HOPG

• Imtiaz Ahmad,
• Floor Derkink,
• Tim Boulogne,
• Pantelis Bampoulis,
• Harold J. W. Zandvliet,
• Hidayat Ullah Khan,
• Rahim Jan and
• E. Stefan Kooij

Beilstein J. Nanotechnol. 2019, 10, 696–705, doi:10.3762/bjnano.10.69

• probes (Mikromasch) with a nominal spring constant of 5–16 N/m and a resonance frequency 150–300 kHz. Drop casting A 5 μL droplet of gold nanorod suspension was deposited on a freshly cleaved HOPG surface and the solvent was left to evaporate at room temperature. After 2 h, the solvent was completely

Wearable, stable, highly sensitive hydrogel–graphene strain sensors

• Jian Lv,
• Chuncai Kong,
• Chao Yang,
• Lu Yin,
• Itthipon Jeerapan,
• Fangzhao Pu,
• Xiaojing Zhang,
• Sen Yang and
• Zhimao Yang

Beilstein J. Nanotechnol. 2019, 10, 475–480, doi:10.3762/bjnano.10.47

• cast onto the hydrogel through drop casting and drying. Although the bare hydrogel already shows resistance changes with respect to strain, the graphene film was used to further increase the sensitivity. The graphene/WG-hydrogel strain sensor can be used to sense human finger movements. This stable

• hydrogel film using a drop casting and drying process. 5 mL of the 2 mg/mL graphene dispersion was drop casted onto the hydrogel and put in the oven at 35 °C until the graphene was fully dried. Assembly of the strain sensor: The strain sensor was fabricated by connecting the graphene/hydrogel to a copper

• , and the formation of ice at low temperature is restricted and the evaporation of water at high temperature is prohibited [11]. The graphene layer was formed on the hydrogel by directly drop casting the graphene solution onto the hydrogel and drying in an oven at 35 °C. The drying process removes the

Raman study of flash-lamp annealed aqueous Cu₂ZnSnS₄ nanocrystals

• Yevhenii Havryliuk,
• Oleksandr Selyshchev,
• Mykhailo Valakh,
• Alexandra Raevskaya,
• Oleksandr Stroyuk,
• Constance Schmidt,
• Volodymyr Dzhagan and
• Dietrich R. T. Zahn

Beilstein J. Nanotechnol. 2019, 10, 222–227, doi:10.3762/bjnano.10.20

• , up to 60 J/cm2, on NC films deposited on a glass substrate by drop-casting. The influence of film thickness and crystallinity of the initial NCs (before FLA) was also studied. Raman scattering was chosen as a main characterization method in this work, because it has already proved to be very

• FLA treatment, CZTS samples were deposited on a glass substrate by drop-casting. In order to investigate the effect of flash annealing at various energy densities, a series of samples was prepared from 0 up to 60 J/cm2 in steps of 5 J/cm2 with a pulse duration of 17.8 ms. Raman spectra were excited

Surface plasmon resonance enhancement of photoluminescence intensity and bioimaging application of gold nanorod@CdSe/ZnS quantum dots

• Siyi Hu,
• Yu Ren,
• Yue Wang,
• Jinhua Li,
• Junle Qu,
• Liwei Liu,
• Hanbin Ma and
• Yuguo Tang

Beilstein J. Nanotechnol. 2019, 10, 22–31, doi:10.3762/bjnano.10.3

• prepared by drop casting the sample dispersion onto an amorphous carbon-coated 300 mesh copper grid. Synthesis of GNRs To synthesize the GNRs, the seed-mediated growth method in CTAB solution was applied, as previously discussed [30][31]. The seed solution was prepared using 5 mL of a 0.2 M CTAB solution