Classification and application of metal-based nanoantioxidants in medicine and healthcare

• Nguyen Nhat Nam,
• Nguyen Khoi Song Tran,
• Tan Tai Nguyen,
• Nguyen Ngoc Trai,
• Nguyen Phuong Thuy,
• Hoang Dang Khoa Do,
• Nhu Hoa Thi Tran and
• Kieu The Loan Trinh

Beilstein J. Nanotechnol. 2024, 15, 396–415, doi:10.3762/bjnano.15.36

• natural antioxidants because of their high stability, easy storage, time effectiveness, and low cost. Also, progress in nanotechnology enables us to easily control size, morphology, surface coating, and chemical configuration, which are highly related to the antioxidant activities. The integration of

Upscaling the urea method synthesis of CoAl layered double hydroxides

• Camilo Jaramillo-Hernández,
• Víctor Oestreicher,
• Martín Mizrahi and
• Gonzalo Abellán

Beilstein J. Nanotechnol. 2023, 14, 927–938, doi:10.3762/bjnano.14.76

• electron microscopy (SEM) Scanning electron microscopy data was acquired using a Hitachi S-4800, with a beam energy of 5 keV. The samples on silicon wafers were directly investigated without any surface coating. Energy dispersive X-ray (EDS) spectroscopy studies were performed on a Hitachi S-4800

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

• distributed in tumor tissue for effective imaging because of the lack of targeting capability. An appropriate surface coating could enhance their diagnostic value for medical imaging [122]. Biomimetic nanodelivery systems are of great significance for imaging agents [101]. H460 lung cancer cell membrane

Interaction between honeybee mandibles and propolis

• Leonie Saccardi,
• Franz Brümmer,
• Jonas Schiebl,
• Oliver Schwarz,
• Alexander Kovalev and
• Stanislav Gorb

Beilstein J. Nanotechnol. 2022, 13, 958–974, doi:10.3762/bjnano.13.84

• was then measured between the two lines. Furthermore, different solvents were used to wash fresh mandibles in order to try removing any potential surface coating. Mandibles were washed in an ultrasonic bath with distilled water for 10 min or with either chloroform (Rotisolv® HPLC stabilised with 1

• (P < 0.0001) when the contact time of the propolis sample was increased to 60 s. Surface coating on bee mandibles To figure out possible reasons for low propolis adhesion on bee mandibles, freeze fractures of freshly prepared mandibles were studied in the cryo-SEM (Figure 8). The different layers of

• studied with the same method (Figure 9D–F). On mandibles washed with acetone (Figure 9G–I) and chloroform (Figure 9J–L) the majority of the surface coating was removed. Though, cryo-SEM studies of chloroform-washed mandibles showed that minor remnants of the surface coating remained on some areas of the

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

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

• irradiation-sensitive resists. The EBL process includes the surface coating with a resist, exposure to the energetic electron beam, and further development of the surface to remove irradiated or non-irradiated material. Another technique, focused electron beam-induced deposition (FEBID) [2][3][4][5], is based

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

• surface coating with nanoparticles through electrodeposition. A general electrodeposition setup consists of three electrodes, that is cathode, anode, and a reference electrode [78]. The solvation property and the conductivity of DESs also play a critical role in determining the physical structure, yield

The preparation temperature influences the physicochemical nature and activity of nanoceria

• Robert A. Yokel,
• Wendel Wohlleben,
• Johannes Georg Keller,
• Matthew L. Hancock,
• Jason M. Unrine,
• D. Allan Butterfield and
• Eric A. Grulke

Beilstein J. Nanotechnol. 2021, 12, 525–540, doi:10.3762/bjnano.12.43

• ), indicative of some organic surface coating, as previously reported [7]. The TGA weight loss for the solvothermally synthesized nanoceria was much greater (ca. 15%) due to its citrate coating (Figure 8 of [35]). FTIR, not previously reported for NM-212, showed small peaks at ca. 1630, 1420, and 1320 cm−1

Differences in surface chemistry of iron oxide nanoparticles result in different routes of internalization

• Barbora Svitkova,
• Vlasta Zavisova,
• Veronika Nemethova,
• Martina Koneracka,
• Miroslava Kretova,
• Filip Razga,
• Monika Ursinyova and
• Alena Gabelova

Beilstein J. Nanotechnol. 2021, 12, 270–281, doi:10.3762/bjnano.12.22

• .12.22 Abstract The efficient entry of nanotechnology-based pharmaceuticals into target cells is highly desired to reach high therapeutic efficiency while minimizing the side effects. Despite intensive research, the impact of the surface coating on the mechanism of nanoparticle uptake is not sufficiently

• involved in the internalization of polyethylene glycol-coated MNPs. Our data indicate that surface engineering can contribute to an enhanced delivery efficiency of nanoparticles. Keywords: bovine serum albumin; cellular uptake; magnetic iron oxide nanoparticles; polyethylene glycol; surface coating

• 40–50 nm in diameter [14], or glycosylphosphatidylinositol (GPI)-anchored proteins [15]. Inorganic nanoparticles are frequently engineered with an organic surface coating to improve their biocompatibility, colloidal stability, and bioavailability. Moreover, the coating facilitates their further

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

• variation in the nature of nanoparticles, nanoparticle concentration, cell type or in the surface coating. Therefore, for comparison reasons, several independent experiments should be performed using the same type of nanomaterial. Nontoxic, inexpensive and highly efficient photothermal nanoparticles, such

Applications of superparamagnetic iron oxide nanoparticles in drug and therapeutic delivery, and biotechnological advancements

• Maria Suciu,
• Corina M. Ionescu,
• Alexandra Ciorita,
• Septimiu C. Tripon,
• Dragos Nica,
• Hani Al-Salami and
• Lucian Barbu-Tudoran

Beilstein J. Nanotechnol. 2020, 11, 1092–1109, doi:10.3762/bjnano.11.94

• nanoparticles only at certain dimensions, as shown in in vitro tests. Larger particles, exceeding 500 nm are endocytosed to a far smaller extent [75][76]. Surface coating, charge, and corona Due to the fact that iron oxides have a certain toxicity when in direct contact with cell components, SPIONs designed for

Key for crossing the BBB with nanoparticles: the rational design

• Sonia M. Lombardo,
• Marc Schneider,
• Akif E. Türeli and
• Nazende Günday Türeli

Beilstein J. Nanotechnol. 2020, 11, 866–883, doi:10.3762/bjnano.11.72

• also accumulate in other organs [128][129]. Influence of size and zeta potential It has been shown that surface functionalization or surface coating are the most important determinants for BBB crossing. For functionalized nanoparticles, size seems to have little impact and nanoparticles in a large size

Engineered superparamagnetic iron oxide nanoparticles (SPIONs) for dual-modality imaging of intracranial glioblastoma via EGFRvIII targeting

• Xianping Liu,
• Chengjuan Du,
• Haichun Li,
• Ting Jiang,
• Zimiao Luo,
• Zhiqing Pang,
• Daoying Geng and
• Jun Zhang

Beilstein J. Nanotechnol. 2019, 10, 1860–1872, doi:10.3762/bjnano.10.181

• proteins, resulting in the formation of protein corona [48][49]. To minimize the adverse effects of the presence of the protein corona in vivo, the surface coating using PEG can endow the NPs with so-called “stealth” properties to reduce the adsorption of high molecular weight proteins, allowing them to

Effects of gold and PCL- or PLLA-coated silica nanoparticles on brain endothelial cells and the blood–brain barrier

• Aniela Bittner,
• Angélique D. Ducray,
• Hans Rudolf Widmer,
• Michael H. Stoffel and
• Meike Mevissen

Beilstein J. Nanotechnol. 2019, 10, 941–954, doi:10.3762/bjnano.10.95

• of a silica-core doped with rhodamine to enable visualization via fluorescence microscopy, followed by a layer of PCL/ICG and a surface coating with either PCL or PLLA. Characterization of these particle types showed a size of 90 nm for PCL-NPs and 95 nm for PLLA-NPs. The zeta potential was −25.4 mV

Development of an anti-pollution coating process technology for the application of an on-site PV module

• Sejin Jung,
• Wonseok Choi,
• Jung Hyun Kim and
• Jang Myoun Ko

Beilstein J. Nanotechnol. 2019, 10, 332–336, doi:10.3762/bjnano.10.32

• pollution of PV modules [3][4]. The PV module surface coating materials that are currently under research must have anti-pollution functions and must endure severe temperature differences, and harsh physical (e.g., external shock) and chemical environments (e.g., animal excrement). They must also have a

Cytotoxicity of doxorubicin-conjugated poly[N-(2-hydroxypropyl)methacrylamide]-modified γ-Fe₂O₃ nanoparticles towards human tumor cells

• Zdeněk Plichta,
• Yulia Kozak,
• Rostyslav Panchuk,
• Viktoria Sokolova,
• Matthias Epple,
• Lesya Kobylinska,
• Pavla Jendelová and
• Daniel Horák

Beilstein J. Nanotechnol. 2018, 9, 2533–2545, doi:10.3762/bjnano.9.236

• using a magnetic field allowing for easy separation and/or targeted delivery in the organism [26]. In this report, citrate-treated maghemite nanoparticles and a novel PHPMA-based surface coating were used to ensure biocompatibility, minimal immunogenicity and to provide reactive functional groups for

Fabrication of photothermally active poly(vinyl alcohol) films with gold nanostars for antibacterial applications

• Mykola Borzenkov,
• Maria Moros,
• Claudia Tortiglione,
• Serena Bertoldi,
• Nicola Contessi,
• Silvia Faré,
• Angelo Taglietti,
• Agnese D’Agostino,
• Piersandro Pallavicini,
• Maddalena Collini and
• Giuseppe Chirico

Beilstein J. Nanotechnol. 2018, 9, 2040–2048, doi:10.3762/bjnano.9.193

• lead to new, easily prepared, NIR-activated, reusable, antibacterial materials suitable for surface coating. Experimental Materials PVA with an average molecular weight of 72000 g/mol (degree of hydrolysis 98%) was purchased from Sigma-Aldrich. Anhydrous citric acid and poly(ethylene glycol) (PEG-200

Surface characterization of nanoparticles using near-field light scattering

• Eunsoo Yoo,
• Yizhong Liu,
• Chukwuazam A. Nwasike,
• Sebastian R. Freeman,
• Brian C. DiPaolo,
• Bernardo Cordovez and
• Amber L. Doiron

Beilstein J. Nanotechnol. 2018, 9, 1228–1238, doi:10.3762/bjnano.9.114

• /bjnano.9.114 Abstract The effect of nanoparticle surface coating characteristics on colloidal stability in solution is a critical parameter in understanding the potential applications of nanoparticles, especially in biomedicine. Here we explored the modification of the surface of poly(ethylene glycol

• cell labeling, gene and drug delivery, molecular imaging, and biosensors [1][2][3][4]. Nanoparticles can be manipulated or modified to fulfill a specific, engineered purpose, partially through changing the surface chemistry or surface coating of the particle. As such, changes in particle surface

• ][28][29]. The properties of SPIOs vary considerably based on the particle size and surface coating, properties, which also greatly affect the particles’ in vivo biodistribution and effectiveness in biological applications [30][31]. During circulation, it is generally understood that larger

Nanoparticle delivery to metastatic breast cancer cells by nanoengineered mesenchymal stem cells

• Liga Saulite,
• Karlis Pleiko,
• Ineta Popena,
• Dominyka Dapkute,
• Ricardas Rotomskis and
• Una Riekstina

Beilstein J. Nanotechnol. 2018, 9, 321–332, doi:10.3762/bjnano.9.32

• and the development of new therapies [15][16]. Generally, a nonadherent surface coating (i.e., polyHEMA), hanging-drop assay or microfluidic devices are used to induce spheroid formation [16][19][20][21]. In the current study, we established a 3D co-culture model using QD-labelled MSCs to verify

Thermo- and electro-optical properties of photonic liquid crystal fibers doped with gold nanoparticles

• Agata Siarkowska,
• Miłosz Chychłowski,
• Daniel Budaszewski,
• Bartłomiej Jankiewicz,
• Bartosz Bartosewicz and
• Tomasz R. Woliński

Beilstein J. Nanotechnol. 2017, 8, 2790–2801, doi:10.3762/bjnano.8.278

• nematic–isotropic phase transition temperature [21][22], but with a specific surface coating, the effect can be reversed [23]. The presence of Au NPs in an LC has proven to influence the response time and lower the threshold voltage [24][25][26][27][28]. In this paper we compare four different

Involvement of two uptake mechanisms of gold and iron oxide nanoparticles in a co-exposure scenario using mouse macrophages

• Dimitri Vanhecke,
• Dagmar A. Kuhn,
• Dorleta Jimenez de Aberasturi,
• Sandor Balog,
• Ana Milosevic,
• Dominic Urban,
• Diana Peckys,
• Niels de Jonge,
• Wolfgang J. Parak,
• Alke Petri-Fink and
• Barbara Rothen-Rutishauser

Beilstein J. Nanotechnol. 2017, 8, 2396–2409, doi:10.3762/bjnano.8.239

• load. Both types of NPs have a similar polymeric surface coating. However, the core materials (gold versus iron oxide) and their overall size differ and can both influence the interaction with cells. The core material can, for example, cause catalytic effects, which have been reported to a higher

Optical techniques for cervical neoplasia detection

• Tatiana Novikova

Beilstein J. Nanotechnol. 2017, 8, 1844–1862, doi:10.3762/bjnano.8.186

• a size of less than 100 nm (i.e., which are much smaller than normal human cells) with biomolecules such as receptors, enzymes, and antibodies on the cell surface and inside the cell [87]. By surface coating, functionalization, and integration with different bioconjugated targeting agents those

Development of polycationic amphiphilic cyclodextrin nanoparticles for anticancer drug delivery

• Gamze Varan,
• Juan M. Benito,
• Carmen Ortiz Mellet and
• Erem Bilensoy

Beilstein J. Nanotechnol. 2017, 8, 1457–1468, doi:10.3762/bjnano.8.145

• ]. As a result of the surface coating with chitosan, the zeta potential value of 6OCaproβCD nanoparticles increased from −29 mV to +44 mV as seen in Table 3. Unal et al., prepared uncoated and CS-coated 6OCaproβCD nanocapsules for oral camptothecin delivery. They reported that the CS coating increased

Nano-engineered skin mesenchymal stem cells: potential vehicles for tumour-targeted quantum-dot delivery

• Liga Saulite,
• Dominyka Dapkute,
• Karlis Pleiko,
• Ineta Popena,
• Simona Steponkiene,
• Ricardas Rotomskis and
• Una Riekstina

Beilstein J. Nanotechnol. 2017, 8, 1218–1230, doi:10.3762/bjnano.8.123

• lysosomes for degradation or, depending on their surface coating, recycled to the cell surface [48]. On the contrary, QDs taken up by caveolae-dependent endocytosis could bypass lysosomes and avoid lysosomal degradation [48]. Taken together, the accumulated experimental evidence suggests that the QD uptake

Preparation of thick silica coatings on carbon fibers with fine-structured silica nanotubes induced by a self-assembly process

• Benjamin Baumgärtner,
• Hendrik Möller,
• Thomas Neumann and
• Dirk Volkmer

Beilstein J. Nanotechnol. 2017, 8, 1145–1155, doi:10.3762/bjnano.8.116

• –gel techniques [6]. Even though the CVD method leads typically to a uniform and dense surface coating, low deposition rates can make this process time-consuming and expensive. The sol–gel method is advantageous owing to the low processing temperature, inexpensive and commercially available precursors

• dispersions leads to a non-exhaustive coating of the surface. For a more or less complete surface coating, the fiber density in the dispersion should not exceed 1.5 g/L. This challenge and a potential interlocking of silicified fibers are insignificant for a coating process of carbon fiber felts. An activated

• surface coating (Figure 10, Supporting Information File 1, Figure S9). The fiber diameter increases from 17 µm, for the neat fibers, to about 35 µm, for the composite fibers including the nanostructured silica shell. Thermogravimetric analysis of the silica coated activated carbon felt shows that the