Effects of drug concentration and PLGA addition on the properties of electrospun ampicillin trihydrate-loaded PLA nanofibers

• Tuğba Eren Böncü and
• Nurten Ozdemir

Beilstein J. Nanotechnol. 2022, 13, 245–254, doi:10.3762/bjnano.13.19

• intramolecular and intermolecular interactions that affect the physical properties of the electrospinning solution, thus leading to differences in the drug release properties of the electrospun nanofibers [2][24]. iii) PLGA is more hydrophilic compared to PLA [11]. iv) The increase in the molecular weight

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

• of hydroxy groups elicits hydrophobicity [24]. The primary physical properties of titanium dioxide that contribute to its biocompatibility are high corrosion resistance, the thermodynamic state at low physiological pH values, the isoelectric point of 5–6, the low ion formation tendency in aqueous

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

• composition and its physical properties but also its volume and the thickness of the liquid layer, to be able to estimate the concentration of sputter material in the resulting NP solution and to consider if the liquid surface is heated by the plasma [42][47]. Despite the fact that most researchers accept

Alteration of nanomechanical properties of pancreatic cancer cells through anticancer drug treatment revealed by atomic force microscopy

• Xiaoteng Liang,
• Shuai Liu,
• Xiuchao Wang,
• Dan Xia and
• Qiang Li

Beilstein J. Nanotechnol. 2021, 12, 1372–1379, doi:10.3762/bjnano.12.101

• ]. Recently, changes of the physical properties of cells are considered to be signs of malignant transformation to cancer cells [5][6]. Measuring the difference in mechanical properties between cancer and normal cells is of great help to understand the changes related to cancer, and may provide the

• the physical properties of HeLa cells treated by docetaxel are different from that of untreated ones [9]. Therefore, the study of drug–cell interaction regarding cellular mechanics could be an effective way for drug evaluation. Important information, including drug efficacy and safety can be obtained

• . Conclusion In conclusion, the nanostructure and physical properties of normal cells and PCCs were revealed by AFM. The Young's modulus of normal cells is larger than that of three kinds of PCCs. Moreover, the Young's modulus of the more aggressive cancer cells (AsPC-1) is smaller than that of the less

Nonmonotonous temperature dependence of Shapiro steps in YBCO grain boundary junctions

• Leonid S. Revin,
• Dmitriy V. Masterov,
• Alexey E. Parafin,
• Sergey A. Pavlov and
• Andrey L. Pankratov

Beilstein J. Nanotechnol. 2021, 12, 1279–1285, doi:10.3762/bjnano.12.95

• ; Shapiro steps; temperature dependence; YBaCuO Josephson junction; Introduction High-temperature superconducting (HTSC) Josephson junctions (JJs) are of great interest since many physical properties can be observed in dynamics during the changing the temperature within a wide range from nitrogen

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

• macroscale, where the properties change with the length scales involved. This aspect has been addressed in the present review with focus on gas-sensing properties. While chemical or physical properties of the material may or may not remain the same, a change in geometry and architecture, especially as

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

• atomistic level although it governs many physical properties such as electrical and thermal conductivity, and magnetic properties [27][28]. Atomistic simulations provide insights into the internal structure of the deposits and its evolution depending on the regimes of the FEBID process. In this study

First-principles study of the structural, optoelectronic and thermophysical properties of the π-SnSe for thermoelectric applications

• Muhammad Atif Sattar,
• Najwa Al Bouzieh,
• Maamar Benkraouda and
• Noureddine Amrane

Beilstein J. Nanotechnol. 2021, 12, 1101–1114, doi:10.3762/bjnano.12.82

• paper, we have theoretically explored the physical properties of this new binary phase of cubic π-SnSe alloy. Although one study has experimentally demonstrated the mechanical stability of the π-SnSe phase [47], to the best of our knowledge, optical, thermodynamic, and thermoelectric properties of this

Assessment of the optical and electrical properties of light-emitting diodes containing carbon-based nanostructures and plasmonic nanoparticles: a review

• Keshav Nagpal,
• Erwan Rauwel,
• Frédérique Ducroquet and
• Protima Rauwel

Beilstein J. Nanotechnol. 2021, 12, 1078–1092, doi:10.3762/bjnano.12.80

• a large scale. For this purpose, transparent conducting oxides (TCO), such as thin films of In2O3, SnO2, ZnO, and their mixtures have been extensively studied [30][31][32][33][34]. The most widely studied TCO is indium tin oxide (ITO), which possesses good physical properties, such as high optical

Molecular assemblies on surfaces: towards physical and electronic decoupling of organic molecules

• Sabine Maier and
• Meike Stöhr

Beilstein J. Nanotechnol. 2021, 12, 950–956, doi:10.3762/bjnano.12.71

• , photon-induced reactions [46][49][50][51] or electron-induced reactions by electrons from a probe tip [52][53]. In the following, we would like to highlight a few examples for physical properties and built-in functionalities of molecular systems, which were successfully accessed by employing one of the

Self-assembly of Eucalyptus gunnii wax tubules and pure ß-diketone on HOPG and glass

• Miriam Anna Huth,
• Axel Huth and
• Kerstin Koch

Beilstein J. Nanotechnol. 2021, 12, 939–949, doi:10.3762/bjnano.12.70

• formation of the tubules [26]. Atomic force microscopy (AFM) investigations further showed that the elongation of secondary alcohol tubules is based on a helical growth mechanism [27]. Recrystallization experiments with nonacosan-10-ol on non-biological substrates showed that the chemical and physical

• properties of the underlying substrate affected the crystal formation [27][28]. ß-Diketone tubules have been recrystallized by total wax extracts and isolated ß-diketone of plants, which present ß-diketone tubules on their surfaces [18][29]. However, until now, the process of formation of this chemically and

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

• . Microfluidic systems are capable of producing multilayered MBs. Other advantages are the controllable size, adjustable shell and gas composition, uniformity of the bubbles, and their physical properties. On the other hand, the production rate of this system is not very high or efficient, which limits the

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

• their chemical inertness, do not react with the material. This interstitial placement induces strain into the lattice and hence offers a method for so-called strain engineering of a range of physical properties. Very recently, ion implantation using the HIM has been investigated for this purpose

A review on nanostructured silver as a basic ingredient in medicine: physicochemical parameters and characterization

• Gabriel M. Misirli,
• Kishore Sridharan and
• Shirley M. P. Abrantes

Beilstein J. Nanotechnol. 2021, 12, 440–461, doi:10.3762/bjnano.12.36

• , triangular plates, hexagonal plates, pyramids, and cubes depending on the synthesis method used, as depicted in Figure 1. Moreover, they all have specific characteristics, both from the physicochemical and biomedical application points of view [33]. The unique chemical and physical properties of AgNPs are

• has about 0.00006% of the atoms on the surface, while a cube with 10 nm of size has approximately 60% of the atoms on the surface. Therefore, many of the physical properties of AgNPs, such as their effectiveness against bacteria, viruses, and biofilm permeability are related to the size of the

Reconstruction of a 2D layer of KBr on Ir(111) and electromechanical alteration by graphene

• Zhao Liu,
• Antoine Hinaut,
• Stefan Peeters,
• Sebastian Scherb,
• Ernst Meyer,
• Maria Clelia Righi and
• Thilo Glatzel

Beilstein J. Nanotechnol. 2021, 12, 432–439, doi:10.3762/bjnano.12.35

• , electromagnetic, and other attractive physical properties [1][2]. Their structures can be usually tailored or modified at the nanoscale [3][4]. One type of modification is the fabrication of 2D layered heterostructures, which have been the subject of intensive scientific research in recent years [5][6][7]. The

• intercalation of a third material between a substrate and a 2D layer can be applied to tune the physical properties [13][14][15][16][17]. Schulzendorf et al. reported the electrical decoupling of graphene islands by the intercalation of single layers of KBr between the Cu(111) metal substrate and graphene

The patterning toolbox FIB-o-mat: Exploiting the full potential of focused helium ions for nanofabrication

• Victor Deinhart,
• Lisa-Marie Kern,
• Jan N. Kirchhof,
• Sabrina Juergensen,
• Joris Sturm,
• Enno Krauss,
• Thorsten Feichtner,
• Sviatoslav Kovalchuk,
• Michael Schneider,
• Dieter Engel,
• Bastian Pfau,
• Bert Hecht,
• Kirill I. Bolotin,
• Stephanie Reich and
• Katja Höflich

Beilstein J. Nanotechnol. 2021, 12, 304–318, doi:10.3762/bjnano.12.25

• combined in a straightforward manner, for example, by stacking. Applications of such materials may rely on (coupled) material excitations, such as plasmon polaritons in gold nanostructures [2], on physical properties, such as the exceptionally high mechanical stability of suspended graphene [3], or on

The role of gold atom concentration in the formation of Cu–Au nanoparticles from the gas phase

• Yuri Ya. Gafner,
• Svetlana L. Gafner,
• Darya A. Ryzkova and
• Andrey V. Nomoev

Beilstein J. Nanotechnol. 2021, 12, 72–81, doi:10.3762/bjnano.12.6

• usually exhibit new chemical and physical properties in comparison to conventional bulk materials due to the much higher surface-to-volume ratio. Even these unusual properties of the metal nanoparticles can be changed and fine-tuned by adjusting their size, shape, and chemical composition. Thus, several

Bulk chemical composition contrast from attractive forces in AFM force spectroscopy

• Dorothee Silbernagl,
• Media Ghasem Zadeh Khorasani,
• Natalia Cano Murillo,
• Anna Maria Elert and
• Heinz Sturm

Beilstein J. Nanotechnol. 2021, 12, 58–71, doi:10.3762/bjnano.12.5

• of atomic force microscopy (AFM) is the measurement of physical properties at sub-micrometer resolution. Methods such as force–distance curves (FDCs) or dynamic variants (such as intermodulation AFM (ImAFM)) are able to measure mechanical properties (such as the local stiffness, kr) of nanoscopic

• and interphases. Ideally, for a complete understanding of the underlying mechanism, a full structure–property relation is desired. A counterpart for the high-resolution physical properties (“how”) is needed to describe the local structure (“what”). For that purpose, one major drawback of AFM force

• spectroscopy needs to be overcome. Despite the fact that AFM, in general, has a high sensitivity for physical properties and physical material contrasts, it is usually considered to lack sensitivity to detect chemical or structural information. Therefore, the magnitude and extent of different material phases

Piezotronic effect in AlGaN/AlN/GaN heterojunction nanowires used as a flexible strain sensor

• Jianqi Dong,
• Liang Chen,
• Yuqing Yang and
• Xingfu Wang

Beilstein J. Nanotechnol. 2020, 11, 1847–1853, doi:10.3762/bjnano.11.166

• impurity centers [4]. This is a widely discussed topic in the field of high electron mobility transistor (HEMT) research [5][6]. In order to further improve the physical properties of a 2DEG and optimize the performance of AlGaN/AlN/GaN-based HEMT devices, piezotronic effects are introduced to adjust the

Absorption and photoconductivity spectra of amorphous multilayer structures

• Oxana Iaseniuc and
• Mihail Iovu

Beilstein J. Nanotechnol. 2020, 11, 1757–1763, doi:10.3762/bjnano.11.158

• ]. The physical properties of covalently bonded glasses are determined by the mean coordination number Z (average number of covalent bonds per atom) [4]. It is well known that the functionality of many photonic and optoelectronic devices is based on the intrinsic photoelectric effect. The photocurrent

Out-of-plane surface patterning by subsurface processing of polymer substrates with focused ion beams

• Serguei Chiriaev,
• Luciana Tavares,
• Vadzim Adashkevich,
• Arkadiusz J. Goszczak and
• Horst-Günter Rubahn

Beilstein J. Nanotechnol. 2020, 11, 1693–1703, doi:10.3762/bjnano.11.151

• high transparency, biocompatibility, and low cost, enable the broad use of PDMS for the fabrication of microfluidic, microelectromechanical, and microoptical devices [20]. The effects of ion irradiation on chemical and physical properties and on the surface morphology of PDMS have been extensively

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

• -perylene tetracarboxylic dianhydride (PTCDA); Raman spectroscopy; Introduction In recent years, two-dimensional materials (2DMs) have been established as a highly interesting field of studies, both in regard to their fundamental physical properties as well as their potential for technical applications [1

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

• . Keywords: cetyltrimethylammonium bromide (CTAB); laser ablation; monodisperse; photodetector; silver(I) sulfide (Ag2S); thiourea; Introduction Nanomaterials have attracted considerable attention due to their superior chemical and physical properties. The size-dependent properties of nanomaterials have

Antimicrobial metal-based nanoparticles: a review on their synthesis, types and antimicrobial action

• Matías Guerrero Correa,
• Fernanda B. Martínez,
• Cristian Patiño Vidal,
• Camilo Streitt,
• Juan Escrig and
• Carol Lopez de Dicastillo

Beilstein J. Nanotechnol. 2020, 11, 1450–1469, doi:10.3762/bjnano.11.129

• conditions, the size, length, and diameter of the nanostructures can be adjusted in order to control the physical properties of the NPs. Chemical methods A few examples of chemical methods that have been used to synthesize nanoparticles are the atomic layer deposition method, chemical reduction method

One-step synthesis of carbon-supported electrocatalysts

• Sebastian Tigges,
• Nicolas Wöhrl,
• Ivan Radev,
• Ulrich Hagemann,
• Markus Heidelmann,
• Thai Binh Nguyen,
• Stanislav Gorelkov,
• Stephan Schulz and
• Axel Lorke

Beilstein J. Nanotechnol. 2020, 11, 1419–1431, doi:10.3762/bjnano.11.126

• indicates 100% sp²-hybridization [31]. No peaks are found for the Pt-NPs in the investigated wavenumber region, which is supported by a study of Kimata et al. [32]. A more detailed evaluation of the Raman data can be found in Supporting Information File 1. Controlling the physical properties of the active

• the aforementioned embedding. Therefore, Pt/CNW samples with different physical properties were studied concerning their ECSA, ORR mass activity and long-term stability, and the results were compared to those obtained with a commercially available Pt/C electrocatalyst. In Figure 7, the calculated ECSA

• , these details were systematically studied. A table summarizing the process parameters for every sample shown in this work can be found in Supporting Information File 1, Table S1. It is worth noting that under identical synthesis parameters, the results are reproducible. Controlling the physical