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Search for "iron" in Full Text gives 418 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.
Upcycling agroindustrial waste into graphene oxide supports for gold nanoparticles: toward sustainable nanomaterials
Beilstein J. Nanotechnol. 2026, 17, 489–504, doi:10.3762/bjnano.17.32
- of functional groups and defect density. Ferrocene was used as a catalytic nucleation agent during pyrolysis as its iron-containing framework facilitates the formation of initial aromatic carbon nuclei and promotes early-stage graphitization at low temperatures [20][21]. All GO samples were also used
- stirred at 200 rpm for 12 h at room temperature. Afterwards, the mixture was centrifuged at 7000 rpm for 10 min to precipitate Agro-GO and separate the supernatant containing dissolved iron ions. The solid was washed with deionized water until the pH reached 5. Finally, purified Agro-GO was vacuum-dried
- the use of hydrazine as a reducing agent, which is likely associated with the formation of –N=C=O or related nitrogen-containing groups [45]. The corresponding relative concentrations (atom %) of carbon, oxygen, and nitrogen in the GO samples are summarized in Table 1. No iron signal was detected
Biomimetic nanoparticles in cancer photodynamic therapy: a review of targeted delivery systems and therapeutic outcomes
Beilstein J. Nanotechnol. 2026, 17, 396–422, doi:10.3762/bjnano.17.27
Polycatecholamine nanocoatings on stainless steel: the effect on attachment of human fibroblasts and platelets
Beilstein J. Nanotechnol. 2026, 17, 365–380, doi:10.3762/bjnano.17.25
- : cell–material interactions; Fenton oxidation; hemocompatibility; nanocoatings; polycatechols; Introduction Stainless steel 316L (SS 316L) is an iron-based alloy containing chromium and molybdenum, which promote passivation and corrosion resistance [1]. Owing to its mechanical robustness
Beam shaping techniques for pulsed laser ablation in liquids: Unlocking tunable control of nanoparticle synthesis in liquids
Beilstein J. Nanotechnol. 2026, 17, 309–342, doi:10.3762/bjnano.17.22
From shield to spear: Charge-reversible nanocarriers in overcoming cancer therapy barriers
Beilstein J. Nanotechnol. 2026, 17, 159–175, doi:10.3762/bjnano.17.10
- efficiency [63]. Superparamagnetic iron-oxide nanoparticles (SPIONs), which react to external magnetic fields and enable selective accumulation in tumour areas, are commonly used to create these nanocarriers [64]. These systems follow thermo-sensitive binding strategies that permit targeted drug release (e.g
- trigger drug release. They show minimal release at physiological temperature, near-complete release under hyperthermia, and excellent tumour-targeting efficacy with high biocompatibility [66]. Iron oxide nanocubes coated with a thermoresponsive polymer (TR-DOXO) enabled magnetic-hyperthermia-triggered
Functional surface engineering for cultural heritage protection: the role of superhydrophobic and superoleophobic coatings – a comprehensive review
Beilstein J. Nanotechnol. 2026, 17, 63–96, doi:10.3762/bjnano.17.6
- organogel, composed of poly-3-hydroxybutyrate (PHB), ethyl lactate (EL), and deferoxamine B (DFO), for the simultaneous removal of iron corrosion and aged acrylic coatings from historical metal artefacts. This gel is made of bio-based, biodegradable, and low-toxicity materials, aligned with Green Chemistry
- , such as ethylenediaminetetraacetic acid (EDTA) or mechanical abrasion, offering a promising, green innovation for conserving indoor historical iron objects by a targeted removal of both corrosion and old coatings [16]. Although the identification of the impairment and its restoration play crucial roles
Improving magnetic properties of Mn- and Zn-doped core–shell iron oxide nanoparticles by tuning their size
Beilstein J. Nanotechnol. 2025, 16, 2285–2295, doi:10.3762/bjnano.16.157
- /bjnano.16.157 Abstract Superparamagnetic iron oxide nanoparticles (SPIONs) offer promising applications in nanomedicine due to their appealing properties. Their magnetic and magnetic hyperthermia properties are considered as relevant tools for low invasive cancer therapeutic applications. In this work
- least tenfold). The designed core NPs are composed of a Zn0.4Fe2.6O4 core and a MnFe2O4 shell. Their size and morphology were determined by transmission electron microscopy, Fourier-transform infrared spectroscopy was used to investigate their chemical composition. The iron oxide phase was confirmed by
- development of magnetic nanoparticles with enhanced SAR and improved biocompatibility has been a major objective in the field of nanomedicine. Among the various materials used for magnetic hyperthermia, superparamagnetic iron oxide nanoparticles (SPIONs), such as magnetite (Fe3−δO4) and maghemite (γ-Fe2O3
Optical bio/chemical sensors for vitamin B12 analysis in food and pharmaceuticals: state of the art, challenges, and future outlooks
Beilstein J. Nanotechnol. 2025, 16, 2207–2244, doi:10.3762/bjnano.16.153
- fluorophore scaffold, and the sensing signal is primarily colorimetric, with some examples also producing dual colorimetric/fluorescent outputs. The absence of Co2+ in the body can increase the PA risk, as the central Co2+ in the corrin ring of VB12 plays a pivotal role in iron metabolism to synthesize
Microplastic pollution in Himalayan lakes: assessment, risks, and sustainable remediation strategies
Beilstein J. Nanotechnol. 2025, 16, 2144–2167, doi:10.3762/bjnano.16.148
- most promising among them are photocatalytic processes that utilize titanium dioxide nanoparticles under UV radiation. These are very efficient degradation processes for degrading plastics to carbon dioxide (CO2) and water [43]. Fenton reactions, involving a mixture of hydrogen peroxide and iron
- systems that combine nanotechnology with biological components (e.g., enzymes), are emerging as environmentally benign solutions in addition to independent nanoparticles. Enzyme–nanoparticle conjugates can target certain plastic polymers, enabling more rapid and targeted breakdown. Iron oxide
The cement of the tube-dwelling polychaete Sabellaria alveolata: a complex composite adhesive material
Beilstein J. Nanotechnol. 2025, 16, 1998–2014, doi:10.3762/bjnano.16.138
- ). After curing for 1 h at 80 °C, a transverse section of the mounted tubes was finely ground with SiC grit 800 abrasive suspensions on a high-flatness cast-iron lapping plate. The sections were then polished in three steps on textile cloths soaked with diamond suspensions of 6, 3, and 1 µm, respectively
- fixative used, as shown by Gruet et al. [10], and this could also explain the differences reported between studies. It is worth noting that a previous study conducted on S. alveolata found small amounts of iron and manganese in the glands’ periphery [10]. However, these metals were not detected in this
Laser ablation in liquids for shape-tailored synthesis of nanomaterials: status and challenges
Beilstein J. Nanotechnol. 2025, 16, 1963–1997, doi:10.3762/bjnano.16.137
- formation of iron oxide nanowires was reported only in case of ablation with a 248 nm laser of iron powder suspended in methanol, while other solvents (including water, ethanol, isopropanol, and glycol) resulted in only spherical NPs. Moreover, ablation using a 532 nm laser produced spherical NPs in all the
- solvents including methanol. The authors explained the influence of the methanol environment on the nanomaterial shape by attributing it to chemical reactions between iron and methanol molecules, which resulted in the formation of goethite (FeO(OH)) and subsequently led to nanowire growth: Since iron oxide
- ] prepared nanosheets of mixed nickel and iron hydroxide with a complex composition ([Ni1−xFex(OH)2](NO3)y(OH)x−y·nH2O). The authors used nanosecond ablation of the dispersed metal powders in a salt solution of the second element. The effect of hydrogen ions formed as a result of a liquid decomposition was
On the road to sustainability – application of metallic nanoparticles obtained by green synthesis in dentistry: a scoping review
Beilstein J. Nanotechnol. 2025, 16, 1851–1862, doi:10.3762/bjnano.16.128
- biomaterials [16][17]. Owing to their high adaptability to various metals, including silver, zinc, iron, and platinum, their operational simplicity, and the ability to control nanoparticle size and morphology by selecting plant extracts and reaction conditions, green synthesis is gaining increasing prominence
- in optical and photocatalytic applications, particularly in regenerative procedures and dental coatings [48][49]. The sparse use of other metals such as magnesium, iron, selenium, and cerium oxides suggests ongoing exploration of less conventional materials with niche properties, possibly linked to
- iron oxide nanoparticles doped with silver (Ag-Fe2O3) exhibited dual properties, that is, antimicrobial protection and stimulation of osteoblastic activity. In prosthodontics, biogenic nanoparticles have been incorporated into denture base resins and soft liners, demonstrating significant antifungal
Exploring the potential of polymers: advancements in oral nanocarrier technology
Beilstein J. Nanotechnol. 2025, 16, 1751–1793, doi:10.3762/bjnano.16.122
- exchange of Ca2+ ions with Na+ [144]. The complementary characteristics of chitosan and alginate have been utilized to develop nanocarriers for the release of proteins and/or peptides, such as bovine lactoferrin (LF). LF is a cationic glycoprotein involved in iron transport, with immunomodulatory and
Prospects of nanotechnology and natural products for cancer and immunotherapy
Beilstein J. Nanotechnol. 2025, 16, 1644–1667, doi:10.3762/bjnano.16.116
- ) describes the formation of metal–organic co-assembly nanoparticles without a carrier. The formulation contains sorafenib, a molecularly targeted anticancer drug, ursolic acid as an API, and iron ions. Ursolic acid, a naturally occurring pentacyclic triterpenoid, exhibits a variety of biological activities
Nanotechnology-based approaches for the removal of microplastics from wastewater: a comprehensive review
Beilstein J. Nanotechnol. 2025, 16, 1607–1632, doi:10.3762/bjnano.16.114
- emerged as a promising approach. Materials such as silver, ZnO, TiO2, and iron oxide are frequently used in membrane construction due to their high reactivity and effective catalytic behaviour. These membranes are not only simple to engineer but also exhibit strong antibacterial activity. Additionally
Modeling magnetic properties of cobalt nanofilms used as a component of spin hybrid superconductor–ferromagnetic structures
Beilstein J. Nanotechnol. 2025, 16, 1557–1566, doi:10.3762/bjnano.16.110
- technologies [5][6][7] based on Josephson junctions. It is well established that the properties of nanostructures can significantly differ from those of bulk samples. Currently, close attention is paid to thin-film magnetic structures, which include cobalt and iron [8][9][10]. Thus, in [1], the crystal
Cross-reactivities in conjugation reactions involving iron oxide nanoparticles
Beilstein J. Nanotechnol. 2025, 16, 1504–1521, doi:10.3762/bjnano.16.106
- Shoronia N. Cross Katalin V. Korpany Hanine Zakaria Amy Szuchmacher Blum Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada 10.3762/bjnano.16.106 Abstract The preparation of multimodal nanoparticles by capping magnetic iron oxide nanoparticles
- erroneous conclusions about the efficacy of conjugation reactions, which can have detrimental impacts on the functionality and safety of IONPs in biomedical applications. Keywords: click chemistry; copper-catalyzed azide–alkyne cycloaddition; disulfide reduction; iron oxide nanoparticles; thiol–maleimide
- Michael addition; Introduction Iron oxide nanoparticles (IONPs) have been the subject of an immense body of research in the field of biomedicine, where their magnetic properties are appealing for such applications as MRI contrast agents [1], tumor hyperthermia [2], and magnetic drug delivery [3
Nanomaterials for biomedical applications
Beilstein J. Nanotechnol. 2025, 16, 1499–1503, doi:10.3762/bjnano.16.105
- ]. Polymeric nanoparticles, dendrimers, and carbon-based structures such as carbon nanotubes are very promising when it comes to delivering drugs and genes to certain parts of the body [3]. Conversely, metallic nanoparticles such as gold and iron oxide, and fluorescent quantum dots have applications in
- color upon detecting the virus. Their capability to attach to specific antibodies or DNA strands makes them perfect for detecting even faint traces of disease [18]. Moreover, magnetic nanoparticles specially made from iron oxide are also being used in medical imaging. They are usually employed as
Laser processing in liquids: insights into nanocolloid generation and thin film integration for energy, photonic, and sensing applications
Beilstein J. Nanotechnol. 2025, 16, 1428–1498, doi:10.3762/bjnano.16.104
The role of biochar in combating microplastic pollution: a bibliometric analysis in environmental contexts
Beilstein J. Nanotechnol. 2025, 16, 1401–1416, doi:10.3762/bjnano.16.102
- efficiency of BC in MP removal. Specifically, MBC derived from sludge and red mud has demonstrated improved adsorption capacity for nanoplastics [43]. Furthermore, modifying feedstock with urea, ascorbic acid, and iron salts before pyrolysis enhances iron and nitrogen content, improving microbial community
- structure, facilitates enhanced physical and chemical adsorption, as well as electrostatic interactions, thereby improving the removal of small MP particles [34]. Additionally, PS adsorption mechanisms suggest that MP self-polymerization and the strengthened metal–O bonding in nano-iron-modified biochar
- relatively high removal efficiency of 94.12%, its low adsorption capacity (4.5 mg·g−1) necessitates the use of a large quantity of adsorbent to ensure effective removal [78]. Notably, aluminum anodes have shown superior performance compared to iron anodes, with removal efficiencies, varying according to MP
Enhancing the therapeutical potential of metalloantibiotics using nano-based delivery systems
Beilstein J. Nanotechnol. 2025, 16, 1350–1366, doi:10.3762/bjnano.16.98
- proteins, ligand exchange kinetics comparable to those of platinum complexes, their two predominant oxidation states (II and III), and their ability to mimic iron when interacting with biological molecules [124]. However, their therapeutic application is hindered, as in most of the metallodrugs, by poor
Ferroptosis induction by engineered liposomes for enhanced tumor therapy
Beilstein J. Nanotechnol. 2025, 16, 1325–1349, doi:10.3762/bjnano.16.97
- Ferroptosis has shown potential therapeutic effects in tumor therapy as an iron-dependent programmed cell death. The induction of ferroptosis is based on lipid peroxidation, the accumulation of iron and reactive oxygen species, and the depletion of glutathione. Nowadays, various nanoparticles are reported for
- methods that have been developed to reduce mortality, alleviate chronic pain, and improve quality of life [5]. In 2021, Dixon initially introduced the concept of a new form of cell death called ferroptosis [6]. This form of cell death relies on iron and is not related to apoptosis, distinguished by the
- inducing ferroptosis through various pathways to enhance cancer therapy. We also discuss stimuli-responsive liposomes and evaluate their effects on the immune system. 2 Ferroptosis A recently recognized regulated condition of iron-dependent cell death is called ferroptosis [7][22]. The Latin term “ferrum
Deep-learning recognition and tracking of individual nanotubes in low-contrast microscopy videos
Beilstein J. Nanotechnol. 2025, 16, 1316–1324, doi:10.3762/bjnano.16.96
- , horizontally aligned carbon nanotubes (HA-CNTs) were synthesized inside a miniature chemical vapor deposition (CVD) cell with an optical window (Linkam TS1500). ST-cut quartz and iron nanoparticles served as substrate and catalyst, respectively. Ethanol and argon were, respectively, used as carbon precursor
Wavelength-dependent correlation of LIPSS periodicity and laser penetration depth in stainless steel
Beilstein J. Nanotechnol. 2025, 16, 1302–1315, doi:10.3762/bjnano.16.95
- is the effective mass of the electron. Stainless steel has a more complex electron density than pure metals because it is composed of a mix of iron, chromium, nickel, and other elements. Stainless steel’s electron density varies depending on the composition and microstructure of the alloy, typically
Better together: biomimetic nanomedicines for high performance tumor therapy
Beilstein J. Nanotechnol. 2025, 16, 1246–1276, doi:10.3762/bjnano.16.92
- iron transport protein and possesses a hollow cage-like structure, which offers high drug loading. Initially, ferritin was only used as a template to develop diagnostic agents [96]. Later, it was used to encapsulate a wide range of therapeutic agents. Importantly, ferritin receptors are overexpressed
- phage for targeted drug delivery. In a recent study, the DNA of the M13 phage was modified to encode for SPARC binding peptide and cathepsin B cleavage peptide. Then, superparamagnetic iron oxide nanoparticles were covalently bonded to cathepsin B expressed on M13 phages to track their intracellular
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