Fragmentation of metal(II) bis(acetylacetonate) complexes induced by slow electrons

• Janina Kopyra and
• Hassan Abdoul-Carime

Beilstein J. Nanotechnol. 2023, 14, 980–987, doi:10.3762/bjnano.14.81

• Nowadays, organometallic complexes receive particular attention because of their use in the design of pure nanoscale metal structures. In the present work, we present results obtained from a series of studies on the degradation of metal(II) bis(acetylacetonate)s induced by low-energy electrons. These slow

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

• expected to conform to the elemental composition Si3P4. The emergence of an additional diffraction maximum for the sample SP900 was likely due to partial degradation of the compound. Signs of decomposition could be seen in the diffraction pattern of sample SP670 as well, albeit to a lesser extent. Raman

Antibody-conjugated nanoparticles for target-specific drug delivery of chemotherapeutics

• Mamta Kumari,
• Amitabha Acharya and
• Praveen Thaggikuppe Krishnamurthy

Beilstein J. Nanotechnol. 2023, 14, 912–926, doi:10.3762/bjnano.14.75

• of NP surfaces with targeting moieties such as antibodies protects the chemotherapeutic agent from enzymatic degradation and improves the internalization into targeted cancer cells. Multifunctionalized NPs improve the tumor targeting ability, boost the body’s antitumor immune response, and decrease

• through the antibodies [94]. Additionally, these targeted NPs internalize the chemotherapeutics precisely into tumor cells with minimal drug leakage and also provide protection from degradation and elimination [95]. The controlled size and surface charge of NPs avoid the rapid renal clearance of the NPs

Ultralow-energy amorphization of contaminated silicon samples investigated by molecular dynamics

• Grégoire R. N. Defoort-Levkov,
• Alan Bahm and
• Patrick Philipp

Beilstein J. Nanotechnol. 2023, 14, 834–849, doi:10.3762/bjnano.14.68

• very sensitive to contaminations [16] and environmental changes during preparation to the point where an oxide layer formed on the surface of the lamella could complicate analysis [17][18]. While this oxide layer has a substantial impact, ion-induced damage contributes even more to the degradation of

Nanostructured lipid carriers containing benznidazole: physicochemical, biopharmaceutical and cellular in vitro studies

• Giuliana Muraca,
• María Esperanza Ruiz,
• Rocío C. Gambaro,
• Sebastián Scioli-Montoto,
• María Laura Sbaraglini,
• Gisel Padula,
• José Sebastián Cisneros,
• Cecilia Yamil Chain,
• Vera A. Álvarez,
• Cristián Huck-Iriart,
• Guillermo R. Castro,
• María Belén Piñero,
• Matias Ildebrando Marchetto,
• Catalina Alba Soto,
• Germán A. Islan and
• Alan Talevi

Beilstein J. Nanotechnol. 2023, 14, 804–818, doi:10.3762/bjnano.14.66

• degradation process, whereas NLC-BNZ and NLC-VEHICLE presented two events (Figure 3). That was also observed in the derivative curves. The weight loss process for the lipid started at 180 °C and finished at 320 °C. The poloxamer 188 thermogram showed a decomposition process starting at 300 °C and ending at

• 410 °C, and BNZ degradation occurred in the 190–300 °C range. Considering these processes, nanoparticle thermal behavior might be attributed first to lipid degradation, and second to poloxamer weight loss. The attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) technique was

• Instruments, New Castle, DE, USA). Freeze dried formulations of approximately 10 mg were accurately weighed in a platinum pan. Measurements were performed from room temperature to 600 °C at a heating rate of 10 °C/min under nitrogen atmosphere to avoid thermo-oxidative degradation. Attenuated total reflection

Silver nanoparticles loaded on lactose/alginate: in situ synthesis, catalytic degradation, and pH-dependent antibacterial activity

• Nguyen Thi Thanh Tu,
• T. Lan-Anh Vo,
• T. Thu-Trang Ho,
• Kim-Phuong T. Dang,
• Van-Dung Le,
• Phan Nhat Minh,
• Chi-Hien Dang,
• Vinh-Thien Tran,
• Van-Su Dang,
• Tran Thi Kim Chi,
• Hieu Vu-Quang,
• Radek Fajgar,
• Thi-Lan-Huong Nguyen,
• Van-Dat Doan and
• Thanh-Danh Nguyen

Beilstein J. Nanotechnol. 2023, 14, 781–792, doi:10.3762/bjnano.14.64

• antibacterial activity [38]. In this study, we prepared a nanocomposite, Lac/Alg, to stabilize AgNPs without any additives, utilizing lactose as a reducing agent. The resulting nanocomposite AgNPs@Lac/Alg was used for the catalytic degradation of toxic dyes and investigated regarding its pH-dependent

• . Subsequently, AgNPs@Lac/Alg was characterized using various analytical techniques and applied for the catalytic degradation of contaminants and in bacterial activity assays. Absorption spectra were analyzed to monitor changes in physicochemical properties at the maximum peak region of surface plasmon resonance

• . Thus, AgNPs@Lac/Alg-0.7 was selected for assessment of its catalytic and antibacterial properties in this study. Catalytic degradation of contaminants Toxic organic dyes pose a serious threat to the environment, and their non-biodegradability in aqueous media has led to the consideration of various

Carboxylic acids and light interact to affect nanoceria stability and dissolution in acidic aqueous environments

• Matthew L. Hancock,
• Eric A. Grulke and
• Robert A. Yokel

Beilstein J. Nanotechnol. 2023, 14, 762–780, doi:10.3762/bjnano.14.63

• glucose oxidase, suggesting the use of this phenomenon as a colorimetric sensor for bioanalysis [49]. This color transition is an important observation since nanoceria degradation will likely result in the change in oxidation state of surface cerium ions from Ce4+ to Ce3+. Results and Discussion Nanoceria

Nanomaterials for photocatalysis and applications in environmental remediation and renewable energy

• Viet Van Pham and
• Wee-Jun Ong

Beilstein J. Nanotechnol. 2023, 14, 722–724, doi:10.3762/bjnano.14.58

• ]. Semiconducting photocatalyst nanomaterials, such as SnO2, TiO2, MoS2, g-C3N4, and Bi-nanostructures have been proven efficient for a range of applications, including organic pollutant removal, NOx degradation, renewable energy production, and waste-to-energy conversion [15][17][18]. Figure 1 shows a general

• photocatalysis mechanism outlining several possible targets (i.e., NOx degradation, water splitting, degradation of organic pollutants, and enhancement of electron generation in a solar-cell application). This Thematic Issue highlights recent experimental and theoretical developments in using light harvesting by

• semiconductor materials for sustainable applications; for instance, dye solar cells, solar-driven water splitting, NOx removal, and contaminant degradation. The synthesis of semiconductor nanomaterials published on this thematic issue indicates a wide range of synthetic routes. The as-prepared nanomaterials

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

• as the necessity for technical experts with the necessary training, the limited selectivity and reusability of substrates, and the degradation of substrates with time, which reduces the signal. Several portable electrochemical and optical (chemiluminescence, fluorescence, and electrochemiluminescence

• levels of stability due to the rapid degradation of the biomolecules. Extensive research has been focused on the development of different high-performance electrode materials via modification of the materials’ surface with functional groups or doping with various metals or via the formation of

Titania nanoparticles for photocatalytic degradation of ethanol under simulated solar light

• Evghenii Goncearenco,
• Iuliana P. Morjan,
• Claudiu Teodor Fleaca,
• Florian Dumitrache,
• Elena Dutu,
• Monica Scarisoreanu,
• Valentin Serban Teodorescu,
• Alexandra Sandulescu,
• Crina Anastasescu and
• Ioan Balint

Beilstein J. Nanotechnol. 2023, 14, 616–630, doi:10.3762/bjnano.14.51

• describes the photocatalytic degradation of ethanol vapors under simulated solar light and low oxygen concentration using TiO2 nanoparticles obtained by laser pyrolysis. The final products are CO2, H2O, and H2. The average particle sizes are between 15 and 22 nm with anatase being the predominant

• production of H2, compared to the commercial reference sample. The ethanol photodegradation under simulated solar light leads to valuable results concerning different TiO2 functional properties depending on the synthesis conditions. Also, a potential application both for the degradation of organic compounds

Observation of multiple bulk bound states in the continuum modes in a photonic crystal cavity

• Rui Chen,
• Yi Zheng,
• Xingyu Huang,
• Qiaoling Lin,
• Chaochao Ye,
• Meng Xiong,
• Martijn Wubs,
• Yungui Ma,
• Minhao Pu and
• Sanshui Xiao

Beilstein J. Nanotechnol. 2023, 14, 544–551, doi:10.3762/bjnano.14.45

• outgoing boundary. Consequently, BIC modes with infinite Q factor turn into quasi-BICs that are accessible from the radiative continuum [27][28]. In addition to the degradation of the Q factor, the finite-size effect also turns the continuous photonic bands of the infinite device into discrete energy

• Leff larger. Consequently, the M33 mode in the reciprocal space is closer to the Г point than the M14/41 modes. For mode indices larger than M14/41, mode leakage becomes more significant, resulting in Q factor degradation of the corresponding higher-order bulk modes. Sample fabrication and measurement

• fabrication disorders on each mode. The close eigenwavelength values of the resonances in Figure 4c make the Qr degradation difference negligible, but the structural disorders (non-symmetry, tilted angle, and center shift of the structure) have a distinct impact on the different modes. If the structural

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

• membranes with hydrophobic photothermal material particles. Over the past years, various types of SSG membranes have been studied [37][39][45][54][56][57]. These SSG membranes can be applied to, for example, seawater desalination and photocatalytic degradation by utilizing the photothermal and separation

Plasmonic nanotechnology for photothermal applications – an evaluation

• A. R. Indhu,
• L. Keerthana and
• Gnanaprakash Dharmalingam

Beilstein J. Nanotechnol. 2023, 14, 380–419, doi:10.3762/bjnano.14.33

Bismuth-based nanostructured photocatalysts for the remediation of antibiotics and organic dyes

• Akeem Adeyemi Oladipo and
• Faisal Suleiman Mustafa

Beilstein J. Nanotechnol. 2023, 14, 291–321, doi:10.3762/bjnano.14.26

• mechanisms is included, along with potential antibiotic and dye degradation pathways in wastewater. Finally, areas that require additional study and attention regarding the usage of photocatalysts based on bismuth for removing pharmaceuticals and textile dyes from wastewater, particularly for real-world

• . Different materials based on bismuth have been developed and used for a range of environmental remediation applications. For instance, Mu et al. [46] synthesised a Bi2S3/Bi4O7 heterostructure via an in situ sulfidation approach and utilised it for the degradation of rhodamine B dye under visible-light

• photocatalytic degradation of organic dyes and antibiotics in water. The general synthesis of nanometre-sized photocatalytic materials based on bismuth employing energy-efficient techniques is examined. A critical review is also given of ways to improve the photocatalytic activity of the photocatalysts. An

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

• disciplines, such as nanomaterials science, mechanical engineering, pharmacology, and clinical medicine. Nanoparticle (NP)-based therapeutics are uniquely able to improve drug loading efficiency, control drug release, and protect drug molecules against undesired degradation [1][2]. NPs are widely used in

Nanotechnology – a robust tool for fighting the challenges of drug resistance in non-small cell lung cancer

• Filip Gorachinov,
• Fatima Mraiche,
• Diala Alhaj Moustafa,
• Ola Hishari,
• Yomna Ismail,
• Jensa Joseph,
• Maja Simonoska Crcarevska,
• Marija Glavas Dodov,
• Nikola Geskovski and
• Katerina Goracinova

Beilstein J. Nanotechnol. 2023, 14, 240–261, doi:10.3762/bjnano.14.23

• surface, triggered by protease degradation after tumor homing by the EPR effect [112]. Mesoporous silica vesicles (MSVs; dav = 3 μm) with high affinity to tumor vasculature were also described by Blanco et al. as a platform for the triggered release of various therapeutic nanoscale vectors (liposomes

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

• ) solubilize poorly water-soluble drugs through encapsulation in the cavity. Furthermore, otherwise unstable drugs are protected from degradation for efficient therapeutic functions. Many other roles of CyDs are also evident. Advantageously for DDSs, inclusion complexes of CyDs are reasonably stable to deliver

Characterisation of a micrometer-scale active plasmonic element by means of complementary computational and experimental methods

• Ciarán Barron,
• Giulia Di Fazio,
• Samuel Kenny,
• Silas O’Toole,
• Robin O’Reilly and
• Dominic Zerulla

Beilstein J. Nanotechnol. 2023, 14, 110–122, doi:10.3762/bjnano.14.12

• SPR curve is slightly broader than the simulated one. This is due to experimental broadening (in particular, the divergence of the laser beam), surface roughness, and further temperature-induced degradation effects that are not taken into account in the simplified simulation setup employed. In order

Induced electric conductivity in organic polymers

• Konstantin Y. Arutyunov,
• Anatoli S. Gurski,
• Vladimir V. Artemov,
• Alexander L. Vasiliev,
• Azat R. Yusupov,
• Danfis D. Karamov and
• Alexei N. Lachinov

Beilstein J. Nanotechnol. 2022, 13, 1551–1557, doi:10.3762/bjnano.13.128

• the same sample coincided with an accuracy of several mK. An analysis was made of the degradation of samples over time. The difference between two measurements of the same sample was 3 months, while the shift in the beginning of the phase transition was minimal δТс ≈ 0.01 K. It has been established

Photoelectrochemical water oxidation over TiO₂ nanotubes modified with MoS₂ and g-C₃N₄

• Phuong Hoang Nguyen,
• Thi Minh Cao,
• Tho Truong Nguyen,
• Hien Duy Tong and
• Viet Van Pham

Beilstein J. Nanotechnol. 2022, 13, 1541–1550, doi:10.3762/bjnano.13.127

• could replace noble metals are a research interest. Photocatalytic technology uses semiconductors for effective approaches to the degradation of dyes and antibiotics, the removal of pollutant gases, and water splitting to produce hydrogen using solar energy [12][13][14][15][16][17]. Among such

Non-stoichiometric magnetite as catalyst for the photocatalytic degradation of phenol and 2,6-dibromo-4-methylphenol – a new approach in water treatment

• Joanna Kisała,
• Anna Tomaszewska and
• Przemysław Kolek

Beilstein J. Nanotechnol. 2022, 13, 1531–1540, doi:10.3762/bjnano.13.126

• the organic compounds are discussed, as well as their influence on the degradation reaction rates. The degradation efficiency in photocatalytic processes was higher for DBMP (98%) than for phenol (approximately 50%). This proves the high efficiency of magnetite in the photocatalytic degradation of

• halogenated aromatic pollutants. The particularly high degradation efficiency regarding halogen-containing DBMP molecules and the yield of bromide ions indicate that DBMP degradation follows a mixed reduction–oxidation mechanism. DBMP molecules interact with the magnetite surface, enabling them to react with

• the available electrons, and, as a result, bromide ions can be released. The results confirm that magnetite is an effective photocatalyst in the degradation of halogenated aromatic pollutants. Keywords: magnetite; ozonolysis; persistent organic pollutants; photocatalysis; water treatment

In search of cytotoxic selectivity on cancer cells with biogenically synthesized Ag/AgCl nanoparticles

• Mitzi J. Ramírez-Hernández,
• Mario Valera-Zaragoza,
• Omar Viñas-Bravo,
• Ariana A. Huerta-Heredia,
• Miguel A. Peña-Rico,
• Erick A. Juarez-Arellano,
• David Paniagua-Vega,
• Eduardo Ramírez-Vargas and
• Saúl Sánchez-Valdes

Beilstein J. Nanotechnol. 2022, 13, 1505–1519, doi:10.3762/bjnano.13.124

• weight loss curves and derivatives calculated from the thermogravimetric analysis data of the reaction products are shown in Figure 7a and Figure 7b, respectively. In the thermogram of the pineapple peel extract, denoted as PPeel extract, two stages of degradation of the metabolites were observed. The

• first degradation signal is very well defined and occurs at 202 °C, with an approximate mass loss of 35%. The second stage of degradation occurs in a temperature range of 277–395 °C, with an average temperature of 330 °C and an approximate mass loss of 15%. As the temperature increased, the sample

• continued to degrade such that at 750 °C, 36% of char residue remained (Table 2). In the thermograms of the reaction products, two stages of degradation are also shown, except for Ag/AgCl-T60, where a small additional peak appears at 163 °C, possibly from volatile organic molecules. The first degradation in

Orally administered docetaxel-loaded chitosan-decorated cationic PLGA nanoparticles for intestinal tumors: formulation, comprehensive in vitro characterization, and release kinetics

• Sedat Ünal,
• Osman Doğan and
• Yeşim Aktaş

Beilstein J. Nanotechnol. 2022, 13, 1393–1407, doi:10.3762/bjnano.13.115

• -/microscale systems [25]. Chitosan is a natural biopolymer that is widely used in oral nanoparticulate formulations to provide increased drug concentration in the colon and to achieve improved therapy for the colon [26][27][28]. The degradation of chitosan occurs through the lysis of glycosidic bonds by the

LED-light-activated photocatalytic performance of metal-free carbon-modified hexagonal boron nitride towards degradation of methylene blue and phenol

• Nirmalendu S. Mishra and
• Pichiah Saravanan

Beilstein J. Nanotechnol. 2022, 13, 1380–1392, doi:10.3762/bjnano.13.114

• gas chromatograph coupled with a mass spectrometer (GC–MS, Thermo Fisher Scientific) by taking aliquots at 150 min and 330 min. The photocatalytic degradation and mineralization efficiencies were calculated by utilizing the following equations [19]: where Abs(0) symbolizes the initial absorbance, Abs

• modified boron nitride Photocatalytic study Figure 7a–g depicts the adsorption and photocatalytic degradation performance of MBN-80 towards MB (20 ppm) and phenol (10 ppm) accomplished through LED irradiation. Specifically, it removed 78.87% of MB (20 ppm solution) which was further enhanced to 93.83% in

• other hand, the photocatalytic degradation of phenol demonstrated a removal rate of 0.0015 min−1 with 48.56% removal and a mineralization efficiency of 20.17%. The AQE for phenol/H2O2 system was found to be at 2.67%. A negligible removal percentage in the order of 4% for MB and 6% for phenol over a

Recent trends in Bi-based nanomaterials: challenges, fabrication, enhancement techniques, and environmental applications

• Vishal Dutta,
• Ankush Chauhan,
• Ritesh Verma,
• C. Gopalkrishnan and
• Van-Huy Nguyen

Beilstein J. Nanotechnol. 2022, 13, 1316–1336, doi:10.3762/bjnano.13.109

• photocatalysts in eco-friendly applications on a large scale. Bi-based nanomaterials as semiconductor photocatalysts are one of the study’s primary goals, as is the use of Bi-based nanomaterials for wastewater treatment, hydrogen generation, and photocatalytic degradation. Fabrication methods, reliability

• degradation, antibiotic treatment, and sterilization [38]. The term “advanced oxidation processes” has become more common recently. In this process, many oxidizing agents (∙OH) are created. Electron–hole pairs are formed in AOPs when the VB electrons of semiconductor photocatalysts are driven into the

• degradation, the most notable oxidizing species are •OH, photogenerated holes, and •O2−. These species are responsible for the photodegradation of organic and inorganic contaminants in wastewater [40]. To date, it is widely understood that the main limitation of photocatalysts is their low photocatalytic