Berberine-loaded polylactic acid nanofiber scaffold as a drug delivery system: The relationship between chemical characteristics, drug-release behavior, and antibacterial efficiency

• Le Thi Le,
• Hue Thi Nguyen,
• Liem Thanh Nguyen,
• Huy Quang Tran and
• Thuy Thi Thu Nguyen

Beilstein J. Nanotechnol. 2024, 15, 71–82, doi:10.3762/bjnano.15.7

• hydrophilic BBR NPs favorably concentrated on the surface of the nanofibers. The relationship between the wettability and the BBR-release behavior of BBR-loaded PLA nanofiber scaffolds will be reported in the following drug-release profiles. In vitro drug-release profiles and release kinetics In vitro release

Influence of conductive carbon and MnCo₂O₄ on morphological and electrical properties of hydrogels for electrochemical energy conversion

• Sylwia Pawłowska,
• Karolina Cysewska,
• Yasamin Ziai,
• Jakub Karczewski,
• Piotr Jasiński and
• Sebastian Molin

Beilstein J. Nanotechnol. 2024, 15, 57–70, doi:10.3762/bjnano.15.6

• the morphology also facilitates the penetration by the electrolyte, the diffusion of ions to electroactive sites, and the rapid release of the reaction, thus promoting the kinetics of the reaction and achieving higher efficiency of the catalyst built into the 3D structure [19]. The hydrogel matrix

• to electroactive sites, and the rapid release of the reaction, thus promoting the kinetics of the reaction and achieving higher efficiency of the catalyst built into the hydrogel structure [19][21]. The condition which must be met for hydrogels to be used in energy conversion systems is their

• , 9.26 mF/cm2, and 4.38 mF/cm2, respectively, for , , and electrodes [56], but with four times higher catalyst loading. The catalytic kinetics of the hydrogel samples showed a much lower Tafel slope value for pure hydrogel (141 mV/dec) than those obtained for the hydrogel with catalyst and conductive

Curcumin-loaded nanostructured systems for treatment of leishmaniasis: a review

• Douglas Dourado,
• Thayse Silva Medeiros,
• Éverton do Nascimento Alencar,
• Edijane Matos Sales and
• Fábio Rocha Formiga

Beilstein J. Nanotechnol. 2024, 15, 37–50, doi:10.3762/bjnano.15.4

• impact specific drug release kinetics and increase biocompatibility [60]. Different biodegradable polymers have been used for the development of targeted PNPs for the treatment of leishmaniasis [102]. In this scenario, chitosan is an interesting polymer for NP synthesis due to its positive charge, which

• context, we could observe that the studies failed to correlate consecutive intra-macrophage and intra-amastigote cellular uptake kinetics, once it appears to greatly interfere with the proposed biochemical triggers of Leishmania spp. cell death. In addition, the work could also summarize that lipid-based

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

• , evidencing differences in heat transfer. Hence, considering that the precipitation kinetics is controlled by the alkalization process (i.e., the hydrolysis of urea, which depends on the temperature [35]), modifications in the heating process can affect the final size and shape of the particles [69]. This

• size is observed as the volume increases. This feature is related to changes in the heating process (heat transfer) modifying the alkalinization kinetics and the concomitant precipitation process, even after 48 h of recrystallization. These results suggest that the final LDH morphology (size and

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

• low conductivity of MOFs hampers electron transport, leading to sluggish electrochemical reaction kinetics. To alleviate this problem, highly conductive materials such as graphene, and carbon nanotubes were combined with MOFs to improve overall conductivity. Additionally, the usage of pristine MOFs as

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

• , the estimated value of n was 0.56, suggesting mixed release mechanisms at play with a strong contribution of diffusion. As in our case there is no polymer relaxation involved, it may be hypothesized that the burst effect could be slightly affecting the global kinetics of the process [35]. Although

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

• /mL and 3.0 μg/mL of the nanocatalyst. For the reaction kinetics, the plots of ln(A0/At) values versus reaction time show good linear correlation with high determination coefficients for the degradation of the organic dyes, indicating a pseudo-first-order reaction (Figure 7E and Figure 8E

• NaBH4 solution (0.05 M) was introduced into the cell. Using a UV–vis spectrophotometer, the catalytic degradation of the contaminants was monitored at ambient temperature in 2 min intervals. The reaction kinetics were determined by measuring the reduction in absorption intensity at the corresponding

• (B), and 3.0 μg/mL (C); plots of first-order kinetics (D) and rate constants (E) for the catalytic degradation of methyl orange. UV–vis spectra of the catalyst at concentrations of 1.0 μg/mL (A), 2.0 μg/mL (B), and 3.0 μg/mL (C); plots of first order kinetic (D) and rate constants (E) for the

In situ magnesiothermic reduction synthesis of a Ge@C composite for high-performance lithium-ion batterie anodes

• Ha Tran Huu,
• Ngoc Phi Nguyen,
• Vuong Hoang Ngo,
• Huy Hoang Luc,
• Minh Kha Le,
• Minh Thu Nguyen,
• My Loan Phung Le,
• Hye Rim Kim,
• In Young Kim,
• Sung Jin Kim,
• Van Man Tran and
• Vien Vo

Beilstein J. Nanotechnol. 2023, 14, 751–761, doi:10.3762/bjnano.14.62

• higher specific capacity (432.3 mAh·g−1) of Ge@C-iM750 indicates an improvement in the kinetics of lithium storage reactions, even under the harshest condition of 5000 mA·g−1. The Nyquist plots of all electrodes (Figure 5c) contain a semicircle in the high-to-medium frequency range and a sloping tail in

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

• cyclic voltammetry results of the GQDs/GCE electrode to study the interfacial kinetics from 20 mV·s−1 scan rate to 400 mV·s−1 scan rate. The increase in the square root of scan rates led to a linear increase in peak current for anodic and cathodic reactions, as shown in Figure 7c. For scan rates of 20 to

The microstrain-accompanied structural phase transition from h-MoO₃ to α-MoO₃ investigated by in situ X-ray diffraction

• Zeqian Zhang,
• Honglong Shi,
• Boxiang Zhuang,
• Minting Luo and
• Zhenfei Hu

Beilstein J. Nanotechnol. 2023, 14, 692–700, doi:10.3762/bjnano.14.55

• File 1 shows photodegradation experiments of methylene blue irradiated by ultraviolet light. The photodegradation rate of methylene blue was quantitatively estimated by pseudo-first-order kinetics. The reaction rate constants (k) are 0.01625, 0.01882, and 0.01258 min−1 for the samples calcinated at 300

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

• used to define sensor sensitivity (Figure 4). The minimum analyte concentration that can be reliably and precisely quantified is expressed by the term “limit of quantification” (LOQ). For estimation, a level of 10·Sb/S is recommended. The kinetics of both chemical recognition and signal transduction

• materials as potent analytical tools because of their advantages in terms of portability, affordability, high sensitivity, and ease of fabrication. Through functions such as active large surface area, rapid electrode kinetics, and efficient catalytic activity, the amplification of electrochemical signals

Evaluation of electrosynthesized reduced graphene oxide–Ni/Fe/Co-based (oxy)hydroxide catalysts towards the oxygen evolution reaction

• Karolina Cysewska,
• Marcin Łapiński,
• Marcin Zając,
• Jakub Karczewski,
• Piotr Jasiński and
• Sebastian Molin

Beilstein J. Nanotechnol. 2023, 14, 420–433, doi:10.3762/bjnano.14.34

• process is primarily the oxygen evolution reaction (OER) due to its sluggish kinetics resulting in a high overpotential and low efficiency [4]. To overcome this problem, robust anode electrode catalyst materials are required. Since the Ru- and Pt-based catalysts used so far for OER are made using limited

• determined to be 99 mV·dec−1, which is in agreement with the literature [36][37]. A lower Tafel slope was observed for nickel coated with GO, indicating faster kinetics towards the OER compared to the bare substrate [38]. The slopes for NiFe (41 mV·dec−1) and CoNiFe (42 mV·dec−1) were similar, which

• transport. The latter can also be confirmed by the Tafel slope analysis. The slopes for NiFe(300 mC)-GO begin to rise quickly, which indicates a change in the OER kinetics due to the slowed exchange of ions and electrons. The connection of GO with NiFe resulted in a slight increase of the value of Cdl/ECSA

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

Polymer nanoparticles from low-energy nanoemulsions for biomedical applications

• Santiago Grijalvo and
• Carlos Rodriguez-Abreu

Beilstein J. Nanotechnol. 2023, 14, 339–350, doi:10.3762/bjnano.14.29

• nanomedicine has yielded several relevant advancements since its beginnings in the early 2000s. The dissolution kinetics of poorly soluble drugs have been improved by the production of drug nanocrystals, enabling continuous drug release. Lipid molecular structures have been manipulated at the nanoscale to

• (non-adsorbed) surfactant can be in the form of micelles that coexist with the nanoemulsion droplets. The kinetics of surfactant adsorption during droplet formation, droplet coarsening, as well as uncertainties in the estimation of as could also explain the divergences between calculated and

• phase, but it is always smaller (ca. 25 nm from TEM) than the precursor nanoemulsion droplets, regardless of the PLGA concentration. DXM can be encapsulated with efficiencies higher than 88% for PLGA concentrations in the 0.5–4 wt % range. The drug release kinetics seems to be slower as the PLGA

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

• : Heterojunctions, which are the interfaces between two different semiconductors, increase the charge carrier separation efficiency with increased kinetics and strong redox ability. This enhances the photocatalytic capabilities of photocatalysts [101][119][156][157][158][159][160][161]. Depending on how the

• concentrations of contaminants. Both the effectiveness and kinetics of the photocatalytic processes are significantly influenced by the initial concentration of pollutants. Both direct and inverse relationships between the initial concentrations of the pollutants and the degree of their removal have been

Biocatalytic synthesis and ordered self-assembly of silica nanoparticles via a silica-binding peptide

• Mustafa Gungormus

Beilstein J. Nanotechnol. 2023, 14, 280–290, doi:10.3762/bjnano.14.25

• combination with NH3. The reaction kinetics were monitored via measuring the optical density (OD) with UV–vis spectroscopy and the conversion of substrate via gas chromatography coupled with mass spectroscopy (GC–MS). Size and net surface charge distribution of the particles were determined with dynamic light

• scattering (DLS). The efficiency of the self-assembly was evaluated with scanning electron microscopy (SEM), UV–vis spectroscopy, and qualitative visual demonstration. Results and Discussion SiBP alone as catalyst Reaction kinetics were studied via OD measurements of the particles and GC analysis of

• ., Waltham, MA, USA) was used for the quantitative analysis of GC–MS data. The reaction rate of TEOS hydrolysis was calculated according to first-order reaction kinetics [43]. Particle size and zeta potential measurements Measurements were performed using a Zetasizer Nano ZS90 (Malvern Panalytical Ltd

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

• nanocarrier was encapsulated with a cancer cell membrane, which endowed the NPs with the ability to target tumor tissues and mediate tumor killing through chemical kinetics [83]. In addition, further anticancer effects can be exerted by the ginsenoside Rh2, which was delivered by nanocarriers and inhibited

Formation of nanoflowers: Au and Ni silicide cores surrounded by SiO_x branches

• Feitao Li,
• Siyao Wan,
• Dong Wang and
• Peter Schaaf

Beilstein J. Nanotechnol. 2023, 14, 133–140, doi:10.3762/bjnano.14.14

• silicide, and a cross-sectional view of Ni silicide is given in Figure 4c based on reported works [44][48][56]. The elongation process of the symmetric NiSi2 clusters is mainly governed by the growth kinetics [44][57][58]. Conclusion In the present work, nanoflowers with a core particle and surrounding

Antimicrobial and mechanical properties of functionalized textile by nanoarchitectured photoinduced Ag@polymer coating

• Jessica Plé,
• Marine Dabert,
• Helene Lecoq,
• Sophie Hellé,
• Lydie Ploux and
• Lavinia Balan

Beilstein J. Nanotechnol. 2023, 14, 95–109, doi:10.3762/bjnano.14.11

• with compounds generating reactive oxygen species (ROS) or blocks DNA replication and protein action (enzymes), thereby leading to cell death. The increased growth inhibition observed for C. albicans compared to E. coli could be explained in part by the difference in kinetics of silver penetration into

• impact of the M63G environment on microorganism susceptibility is plausible, it is not currently possible to confirm that the culture medium played a significant role in the observed difference of inhibition kinetics. Plate diffusion assay Functionalized and uncoated textiles were placed on a microbial

Combining physical vapor deposition structuration with dealloying for the creation of a highly efficient SERS platform

• Adrien Chauvin,
• Walter Puglisi,
• Damien Thiry,
• Cristina Satriano,
• Rony Snyders and
• Carla Bittencourt

Beilstein J. Nanotechnol. 2023, 14, 83–94, doi:10.3762/bjnano.14.10

• (Figure 2d and Figure 2h). The EDX analysis of the samples dealloyed in HCl confirms the hypothesis related to the kinetic of dealloying (Figure 4a). In Figure 4a it can be seen that the dealloying kinetics is faster for a higher amount of silver in the initial film with a faster decrease of aluminum

• content. However, this observation is not consistent with the previously reported studies on dealloying, revealing that the dealloying kinetics should be faster for samples with a lower amount of noble metals [24]. As previously shown for the case of the Ag–Al alloy dealloyed in HCl, the dealloying leads

• of dealloying suggests that the dealloying kinetic is different on the substrate. Due to the initial morphology, the AgCl layer on every column breaks down after different times in the HCl solution. The discrepancy of kinetics observed here compared to that reported in the literature can be explained

Solvent-induced assembly of mono- and divalent silica nanoparticles

• Bin Liu,
• Etienne Duguet and
• Serge Ravaine

Beilstein J. Nanotechnol. 2023, 14, 52–60, doi:10.3762/bjnano.14.6

• patches. The kinetics of the assembly in a 7:3 (vol/vol) THF/salty water mixture was more deeply investigated. Figure 4d shows that the incubation of 1-PSN with a PPSR of 0.57 led to the formation of dimers, trimers, and larger aggregates, whose number fraction after 10 days of incubation was 10%, 8%, and

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

• , as shown in Figure 5b,d. Therefore, the degradation kinetics are consistent with the pseudo-first-order kinetic model (R2 > 0.95). The results demonstrate that the photocatalytic processes were very efficient and more efficient than degradation by ozonolysis. The values of the degradation rate

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

• kinetics studies of the nanoparticular drug delivery system were carried out. It can be a detailed source and inspiration for possible future research in this area. Results and Discussion In vitro characterization of DCX-PLGA NPs and CS/DCX-PLGA NPs Mean particle size, polydispersity index (PDI), and zeta

• surface have similar charge, resulting in repulsive forces between NPs and mucus layer [55]. Release kinetics studies There are several factors influencing the fate of therapeutical formulations. Release kinetics models are directly relevant for the efficacy and safety of the drugs [56]. Data obtained

• , first order, Higuchi, Korsmeyer–Peppas, Peppas–Sahlin, Hopfenberg, Baker–Lonsdale, or Weibull model). Many studies in this area only evaluate the in vitro release profile, but examining possible models in release kinetics, especially in oral drug delivery systems, is valuable for a clearer

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

• MBN-80 by providing in-depth information on the charge transfer kinetics, and the obtained Nyquist plots are depicted in Figure 6a. The charge transfer resistance at the electrode–electrolyte interface can be interpreted through the arc radius from the Nyquist plot [30]. The lower Nyquist radius for

• the presence of 0.05 M H2O2. The photocatalysis process followed a pseudo-first-order reaction kinetics with a rate constant (K) of 0.016 min−1 (for the aqueous phase MB) and 0.0204 min−1 (for the aqueous phase MB in the presence of H2O2) with a TOC removal of 54.55% and 70%, respectively. On the

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

• generation of Bi2WO6. It has been observed that the newly generated Bi2WO6 has a greater BET surface area and superior charge transfer kinetics. These properties point to an increase in photocatalytic activity. Other Bi-based hollow hierarchical structures, such as BiVO4, have the potential to be synthesized

• high-performance photocatalysts on the market. CdS is a more ecologically friendly alternative to other photocatalysts [113]. To improve the efficiency of photocatalytic water breakdown from the perspective of catalytic reaction kinetics, one method that is both practical and effective is to design

• photocatalysts in such a way as to change the processes involved in photocatalytic reaction kinetics. For example, Cao et al. reported the fabrication of a bismuth-based Bi/Bi2MoO6/TiO2 nanocomposite photocatalytic material using a facile one-step solvothermal technique [114]. To reduce metal Bi on the surface