Quality by design optimization of microemulsions for topical delivery of Passiflora setacea seed oil

• Daniel T. Pereira,
• Douglas Dourado,
• Danielle T. Freire,
• Dayanne L. Porto,
• Cícero F. S. Aragão,
• Myla L. de Souza,
• Guilherme R. S. de Araujo,
• Ana Maria Costa,
• Wógenes N. Oliveira,
• Anne Sapin-Minet,
• Éverton N. Alencar and
• Eryvaldo Sócrates T. Egito

Beilstein J. Nanotechnol. 2025, 16, 2116–2131, doi:10.3762/bjnano.16.146

• healing [17][18][19]. In addition to its chemical characterization, the thermal stability in inert atmosphere (N2) of OPS was assessed. Thermogravimetric analysis (TGA) revealed an initial mass loss of less than 1% (Tonset = 60 °C), likely associated with the evaporation of residual solvent entrapped in

• hoc test was used to assess statistical significance. Differences were considered significant when p < 0.05. Thermogravimetric analysis, derivative thermogravimetry (DTG), and differential scanning calorimetry (DSC) of P. setacea seed oil. Legend: The black line indicates the TGA curve (% mass loss

Beyond the shell: exploring polymer–lipid interfaces in core–shell nanofibers to carry hyaluronic acid and β-caryophyllene

• Aline Tavares da Silva Barreto,
• Francisco Alexandrino-Júnior,
• Bráulio Soares Arcanjo,
• Paulo Henrique de Souza Picciani and
• Kattya Gyselle de Holanda e Silva

Beilstein J. Nanotechnol. 2025, 16, 2015–2033, doi:10.3762/bjnano.16.139

• nanofibers The thermal properties and crystallinity of NF-PLA (monolithic), NF-HA/PLA, and NF-HA+NE2/PLA nanofibers were analyzed using thermogravimetric analysis (TGA), X-ray diffraction (XRD), and differential scanning calorimetry (DSC). Thermal behavior and crystallinity of the nanofibers mats of βCp

• nanoemulsion-loaded PLA are displayed in Figure 8. The TGA and DTG curves provide insights into the thermal stability and decomposition behavior of the nanofibers [65]. At the same time, the DSC and XRD analyses complement the study by elucidating the crystallinity and thermal transitions of the samples

• . Figure 8A and Figure 8B illustrate the mass variation curves as a function of temperature, along with the first derivative of mass variation concerning temperature (DTG), obtained from TGA. In the TGA curve of the HA bulk, a degradation profile with three main stages of mass loss was observed, as

Multifunctional anionic nanoemulsion with linseed oil and lecithin: a preliminary approach for dry eye disease

• Niédja Fittipaldi Vasconcelos,
• Almerinda Agrelli,
• Rayane Cristine Santos da Silva,
• Carina Lucena Mendes-Marques,
• Isabel Renata de Souza Arruda,
• Priscilla Stela Santana de Oliveira,
• Mércia Liane de Oliveira and
• Giovanna Machado

Beilstein J. Nanotechnol. 2025, 16, 1711–1733, doi:10.3762/bjnano.16.120

• bioactivity. No signs of oxidation or thermal degradation were observed at this temperature. TGA and DSC analyses confirm that degradation processes begin only above 340 °C, ensuring that the oil’s quality and functional properties are preserved during formulation. The optimal lecithin concentration was

• temperature. This finding aligns with the results obtained through GC-FID analysis, confirming that heating to 75 °C did not affect the quality of the oil. To provide a comprehensive understanding of the thermal behavior of LO, the TG and DSC curves are presented in Figure 1b. The TGA curve for the LO

• molecular rearrangement and decomposition of the oil into simpler compounds, such as aldehydes, ketones, and aromatic hydrocarbons. These findings affirm the thermal stability of linseed oil at 75 °C, showing no significant changes in acid value or oxidation signs as per GC-FID analysis. TGA and DSC results

Photocatalytic degradation of ofloxacin in water assisted by TiO₂ nanowires on carbon cloth: contributions of H₂O₂ addition and substrate absorbability

• Iram Hussain,
• Lisha Zhang,
• Zhizhen Ye and
• Jin-Ming Wu

Beilstein J. Nanotechnol. 2025, 16, 1567–1579, doi:10.3762/bjnano.16.111

• –vis diffuse reflectance spectroscopy (UV-3150, Shimadzu, Japan). The concentration of OFL was determined using a Nexera LC-40D XR ultrahigh-performance liquid chromatography (HPLC) system (SHIMADZU, Japan). A Pyris 1 TGA instrument (USA) was used to carry out the thermogravimetric (TG) investigations

Dendrimer-modified carbon nanotubes for the removal and recovery of heavy metal ions from water

• Thao Quynh Ngan Tran,
• Huu Trung Nguyen,
• Subodh Kumar and
• Xuan Thang Cao

Beilstein J. Nanotechnol. 2025, 16, 1522–1532, doi:10.3762/bjnano.16.107

• spectroscopy was specifically used to confirm the Diels–Alder reaction on the surface of CNTs, and other characterization techniques (SEM, EDX, XRD, TGA, and FTIR) were applied to confirm the successive growth of the dendrimers. Highly dendrimerized CNTs were found to be more effective in removing heavy metal

• ]. These results collectively indicate that the functionalization process has effectively introduced –NH2 and amide groups onto the CNT surfaces. TGA was utilized to further confirm the polymeric growth of dendrimers on the surface of CNTs (Figure 1d). TGA results indicated a minor weight loss between 100

• thoroughly characterized using FTIR, SEM, XRD, EDX, TGA, and Raman spectroscopy to confirm the successful functionalization and structural integrity of the materials. The applicability of these dendrimerized CNTs materials for the adsorption of Pb2+ and Cd2+ metal ions from aqueous media was thoroughly

Synthesis and antibacterial properties of nanosilver-modified cellulose triacetate membranes for seawater desalination

• Lei Wang,
• Shizhe Li,
• Kexin Xu,
• Wenjun Li,
• Ying Li and
• Gang Liu

Beilstein J. Nanotechnol. 2025, 16, 1380–1391, doi:10.3762/bjnano.16.100

• PDA peaks in the NMR spectra, resulting in the absence of observable characteristic peaks of PDA. Thermogravimetric analysis (TGA) was used to evaluate the membrane’s thermal stability, with the results presented in Figure 2b–d. The minimal differences observed among the three TGA curves also indicate

• the low content of the modifying agents (PDA and Ag) relative to the CTA matrix. This low concentration results in negligible changes in the overall thermal behavior of the composite materials, as detected by TGA. This observation also suggests that the interaction between Ag and CTA or between PDA

• Ag nanoparticles. The stability of Ag, even in such low quantities, is indicated by their resistance to decomposition or volatilization at temperatures up to 800 °C. However, due to the extremely low content of Ag, the residual mass is within the detection limit of the TGA instrument, and thus the

Functional bio-packaging enhanced with nanocellulose from rice straw and cinnamon essential oil Pickering emulsion for fruit preservation

• Tuyen B. Ly,
• Duong D. T. Nguyen,
• Hieu D. Nguyen,
• Yen T. H. Nguyen,
• Bup T. A. Bui,
• Kien A. Le and
• Phung K. Le

Beilstein J. Nanotechnol. 2025, 16, 1234–1245, doi:10.3762/bjnano.16.91

• physicochemical properties of the films. Thermogravimetric analysis (TGA) (Figure 2c) shows how increasing the PE-CEO concentration may affect the thermal stability of the sample. At lower PE-CEO concentration, almost no variation between the rCBP samples can be observed. At 10% (v/w) PE-CEO concentration, a

• (PE-CEO) into a polyvinyl alcohol matrix. The incorporation of NC has been shown to enhance thermal stability, mechanical strength, and water vapor barrier property of the films, while the addition of PE-CEO imparted strong UV blocking, antimicrobial, and antioxidative properties. TGA and mechanical

• resolution of 4 cm−1. Thermal stability was determined using thermogravimetric analysis (TGA) and differential thermogravimetric analysis (DTG). Samples were heated from 25 to 500 °C at a rate of 10 K·min−1 under N2 atmosphere (50 mL·min−1) in a METTLER TOLEDO 3+ Large furnace (Switzerland). X-ray

Multifunctional properties of bio-poly(butylene succinate) reinforced with multiwalled carbon nanotubes

• Volodymyr Krasinskyi,
• Krzysztof Bajer,
• Ludmila Dulebova,
• Nickolas Polychronopoulos,
• Oksana Krasinska and
• Daniel Kaczor

Beilstein J. Nanotechnol. 2025, 16, 1014–1024, doi:10.3762/bjnano.16.76

• in the PBS/CNT_0.5 nanocomposite was verified, with TGA data indicating a content of approximately 0.6 wt %. Differential scanning calorimetry (DSC) analysis was conducted to assess the effect of CNTs on the thermal properties and crystallinity of PBS. The DSC thermograms (Figure 5 and Figure 6

• mm·min−1 for other parameters, in both MD and TD, using rectangular film samples measuring 15 × 150 mm2. A thermogravimetric analyzer (TGA), Q500 (TA Instruments, New Castle, DE, USA), was used to determine the thermal stability and CNT content, following a procedure similar to [29]. Prior to testing

• enthalpy of 110.3 J·g−1 for 100% crystalline PBS [31]. SEM images of PBS (a), CNTs (b), PBS/CNT_10 (c), and PBS/CNT_0.5 (d). MFR of pure PBS and PBS/CNT_0.5 nanocomposite as a function of temperature and applied load. TGA of PBS (green curves), CNTs (black curves), and PBS/CNT_10 masterbatch (red curves

Aprepitant-loaded solid lipid nanoparticles: a novel approach to enhance oral bioavailability

• Mazhar Hussain,
• Muhammad Farooq,
• Muhammad Asad Saeed,
• Muhammad Ijaz,
• Sherjeel Adnan,
• Zeeshan Masood,
• Muhammad Waqas,
• Wafa Ishaq and
• Nabeela Ameer

Beilstein J. Nanotechnol. 2025, 16, 652–663, doi:10.3762/bjnano.16.50

• microscopy (SEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), in vitro drug release in 0.1 M HCl (pH 1.2) and phosphate-buffered saline (PBS, pH 7.4), and pharmacokinetic studies. The optimal formulation (APT-CD-NP4) containing the highest

• the crystal state into an amorphous state after SLN preparation. FTIR results indicated compatibility between APT and the polymers. XRD, TGA, and DSC results indicated no physical interaction between drug and polymers. In vitro drug release studies showed that APT-CD-NP4 yielded the maximum drug

• solubility and enhanced dissolution using a minimum quantity of carriers. The developed SLNs were evaluated regarding drug content and using scanning electron microscopy (SEM), thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC), as well as polydispersity index (PDI), particle size

Radiosensitizing properties of dual-functionalized carbon nanostructures loaded with temozolomide

• Radmila Milenkovska,
• Nikola Geskovski,
• Dushko Shalabalija,
• Ljubica Mihailova,
• Petre Makreski,
• Dushko Lukarski,
• Igor Stojkovski,
• Maja Simonoska Crcarevska and
• Kristina Mladenovska

Beilstein J. Nanotechnol. 2025, 16, 229–251, doi:10.3762/bjnano.16.18

• content of polymer on the surface of the covalently modified CNs (observed also with thermogravimetric analysis (TGA)). After coupling with FA, an additional increase in the mean particle size was observed, with values of 270 and 305 nm for MWCNTs-PEG6000-FA and MWCNTs-G-PEG6000-FA, respectively. This

• compared to the non-covalently PEGylated ones prepared in our previous study [43] (35% and 41%, respectively). This can be explained by the higher content of PEG6000 in the covalently functionalized formulations (confirmed by TGA also) and its barrier role in the TMZ release from the CNs. However, when

• characterization of all formulations regarding interactions of the components and their stability during the preparation procedures, different techniques were used including infrared (IR), ultraviolet–visible (UV–vis), and Raman spectroscopy as well as TGA. For analyzing potential structural changes in the CNs

Synthesis and the impact of hydroxyapatite nanoparticles on the viability and activity of rhizobacteria

• Bedah Rupaedah,
• Indrika Novella,
• Atiek Rostika Noviyanti,
• Diana Rakhmawaty Eddy,
• Anna Safarrida,
• Abdul Hapid,
• Zhafira Amila Haqqa,
• Suryana Suryana,
• Irwan Kurnia and
• Fathiyah Inayatirrahmi

Beilstein J. Nanotechnol. 2025, 16, 216–228, doi:10.3762/bjnano.16.17

• incubation process consisting of three sets, each lasting 24 h. For strain identification, DNA extraction was performed using Instagene™ Matrix, followed by sample amplification using 16S rRNA primers (5′-AGA GTT TGA TCC TGG CTC AG-3′) and (5′-GGA TAC CTT GTT ACG ACT T-3′), with a fragment length of 1500

TiO₂ immobilized on 2D mordenite: effect of hydrolysis conditions on structural, textural, and optical characteristics of the nanocomposites

• Marina G. Shelyapina,
• Rosario Isidro Yocupicio-Gaxiola,
• Gleb A. Valkovsky and
• Vitalii Petranovskii

Beilstein J. Nanotechnol. 2025, 16, 128–140, doi:10.3762/bjnano.16.12

• complementary characterization techniques, including XRD, SEM-EDX, TGA, N2 sorption, NMR, XPS and UV–vis spectrometry. It was observed that treatment in 70% ethanol solution preserves the ordered layered structure of 2D mordenite because TEOT hydrolysis is slowed down. This, in turn, leads to higher

• the mBET method. Thermal gravimetric analysis (TGA) was carried out using a Netzsch STA 449 F1 Jupiter instrument in the temperature range of 40–990 °C at a heating rate of 10 °C/min in an Ar flow of 90 mL/min. 27Al MAS NMR spectra were recorded using a Bruker Avance IIIWB 400 MHz solid-state NMR

Mn-doped ZnO nanopowders prepared by sol–gel and microwave-assisted sol–gel methods and their photocatalytic properties

• Cristina Maria Vlăduț,
• Crina Anastasescu,
• Silviu Preda,
• Oana Catalina Mocioiu,
• Simona Petrescu,
• Jeanina Pandele-Cusu,
• Dana Culita,
• Veronica Bratan,
• Ioan Balint and
• Maria Zaharescu

Beilstein J. Nanotechnol. 2024, 15, 1283–1296, doi:10.3762/bjnano.15.104

• thermogravimetric analysis (TGA) were used to determine the thermal behavior of the synthetized powders by using a Mettler Toledo TGA/DTA 851e apparatus with Al2O3 crucibles and flowing air atmosphere at 80 mL/min. The maximum temperature was set at 1000 °C and the heating rate was 5 °C/min. The surface

• simulated solar irradiation. O2− formation over SG and MW powders under simulated solar irradiation. Photoactivity of the suspended catalyst powders for oxalic acid oxidation to CO2 under simulated solar light irradiation (AM1.5). TGA/DTA results for SG and MW samples. Lattice parameters, mean crystalline

Enhanced catalytic reduction through in situ synthesized gold nanoparticles embedded in glucosamine/alginate nanocomposites

• Chi-Hien Dang,
• Le-Kim-Thuy Nguyen,
• Minh-Trong Tran,
• Van-Dung Le,
• Nguyen Minh Ty,
• T. Ngoc Han Pham,
• Hieu Vu-Quang,
• Tran Thi Kim Chi,
• Tran Thi Huong Giang,
• Nguyen Thi Thanh Tu and
• Thanh-Danh Nguyen

Beilstein J. Nanotechnol. 2024, 15, 1227–1237, doi:10.3762/bjnano.15.99

• ) using a nanoPartica Horiba SZ-100 instrument. Thermal analysis through thermogravimetry (TGA) was performed using a LabSys evo S60/58988 Thermoanalyzer (Setaram, France). The oven-dried powder of both blank nanocomposite GluN/Alg and synthesized composite AuNPs@GluN/Alg underwent heating from 30 to 800

• °C at a rate of 10 °C·min−1 in an airflow of 20 mL·min−1 for TGA analysis. Catalytic activity in the reduction of organic dyes To evaluate the catalytic effectiveness of the synthesized AuNPs@GluN/Alg, we examined their ability to reduce the organic dyes 2-nitrophenol (2-NiP), 4-NiP, and MO using an

• nanoparticles is anticipated to impart excellent catalytic performance in the reduction of organic dyes. Thermal properties of blank and AuNPs@GluN/Alg nanocomposites were assessed through TGA measurements in an airflow of 20 mL/min and a heating rate of 10 °C/min (Figure 3D). Similar kinds of thermal behavior

Facile synthesis of Fe-based metal–organic frameworks from Fe₂O₃ nanoparticles and their application for CO₂/N₂ separation

• Van Nhieu Le,
• Hoai Duc Tran,
• Minh Tien Nguyen,
• Hai Bang Truong,
• Toan Minh Pham and
• Jinsoo Kim

Beilstein J. Nanotechnol. 2024, 15, 897–908, doi:10.3762/bjnano.15.74

• and yield of the as-prepared MIL-100(Fe) materials, including thermogravimetric analysis (TGA), Fourier-transform infrared (FTIR) spectroscopy, powder X-ray diffraction (PXRD) measurements, determination of textural properties, scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy

• of the MIL-100(Fe) phase in the resulting materials and to estimate the conversion of Fe2O3 into MIL-100(Fe) material. The TGA profile of Fe2O3 (Figure 6) showed only a very small weight loss in the investigated temperature range due to a small quantity of absorbed moisture in the sample. Contrarily

• , the TGA profiles of M-100Fe@Fe2O3#0.90, M-100Fe@Fe2O3#1.35, and M-100Fe@Fe2O3#1.80 samples revealed similar mechanisms in weight loss over a temperature range of 30 to 650 °C, coinciding with three stages of weight loss observed in the reference sample MIL-100(Fe). Initially, the trapped molecules

Modification of graphene oxide and its effect on properties of natural rubber/graphene oxide nanocomposites

• Nghiem Thi Thuong,
• Le Dinh Quang,
• Vu Quoc Cuong,
• Cao Hong Ha,
• Nguyen Ba Lam and
• Seiichi Kawahara

Beilstein J. Nanotechnol. 2024, 15, 168–179, doi:10.3762/bjnano.15.16

• gravimetric analysis (TGA) of the samples was performed on a TA Q500 instrument. The temperature was increased at a heating rate of 10 °C /min from room temperature to 900 °C in air atmosphere. The morphology of the DPNR/GO-VTES was observed with field-emission scanning electron microscopy (FE-SEM) performed

• . However, in the case of GO-VTES(a), the hydrolysis was not completed. Thus, there were fewer –OH groups on the silica and GO surfaces. This result is in agreement with the 29Si NMR and ATR FTIR analysis. Thermal gravimetric analysis results The degradation behavior of GO-VTES was investigated with TGA

• . Figure 7 shows TGA and dTGA curves for GO-VTES(a), and GO-VTES(b) and the weight loss percentage at three temperature ranges and residual ash are given in Table 1. The weight loss percentage from 30 to 100 °C for GO-VTES(a) and GO-VTES(b) was approx. 6% and 4%, respectively. This weight loss was

New application of bimetallic Ag/Pt nanoplates in a colorimetric biosensor for specific detection of E. coli in water

• Azam Bagheri Pebdeni,
• Mohammad N. AL-Baiati and
• Morteza Hosseini

Beilstein J. Nanotechnol. 2024, 15, 95–103, doi:10.3762/bjnano.15.9

• sodium hydroxide were purchased from Sigma. Tris-EDTA and HCl (for TE buffer production) were purchased from Merck. The aptamer for identifying E. coli (5′-CCC CCC CCC CCG GAC GCT TAT GCC TTG CCA TCT ACA GAG CAG GTG TGA CGG-3′) was acquired from Pishgam (Tehran, Iran). Lyophilized bacterial strains and

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

• CoAl-LDH synthesis method. We thoroughly study the effects of the mass scale-up (25-fold: up to 375 mM) and the volumetric scale-up (20-fold: up to 2 L). For this, we use a combination of several structural (XRD, TGA, and N2 and CO2 isotherms), microscopic (SEM, TEM, and AFM), magnetic (SQUID), and

• oxidative (air) atmospheres was measured through thermogravimetric analysis (TGA). Typically, the decomposition of layered hydroxide structures consists of at least two main mass loss steps. The first, below 200 °C, is related to the release of physisorbed and interlayer water. The second one consists of

• the loss/decomposition of the interlayer anion and the concomitant dehydroxylation process, which leads to the collapse of the layered hydroxide structure [13][54]. The TGA curve of reference x1 in air (Figure 3) shows a first mass loss step of ca. 12% at 207 °C and a second one of around 14% at 276

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

• (ζ) was measured by Doppler anemometry, and it was found to be around −13 mV. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were performed to determine the thermal stability and melting/recrystallization processes of the components after drug encapsulation. Overlaid DSC

• enthalpies (J·g−1) of the NLC dispersion and the bulk lipid, respectively. The concentration of the lipid phase was 2%. Thermogravimetric analysis Thermogravimetric analysis was performed to assess the thermal stability of BNZ, myristyl myristate, poloxamer 188, and NLC-BNZ on a TGA Q500 apparatus (TA

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

• , respectively, while those of AgNPs@Lac/Alg-0.7 were 4.09 ± 0.2 Å and 68.4 ± 0.8 Å3, respectively [43]. Thus, the XRD data provide evidence for the presence of AgNPs in the nanocomposites. To evaluate the thermal properties of the AgNPs@Lac/Alg nanocomposites, TGA and DSC measurements were performed on both the

• blank composite and the nanocomposites in an air flow of 20 mL/min at a heating rate of 10 °C/min. The TGA curve of AgNPs@Lac/Alg closely resembles that of the blank composite. Between 37 and 200 °C, the nanocomposite AgNPs@Lac/Alg-0.3 exhibited a significantly higher thermal loss (28%) compared to the

• morphology of the nanocomposites was investigated using transmission electron microscopy (TEM) with a JEOL JEM-1400 instrument. Thermal analysis, including thermogravimetry analysis (TGA) and differential scanning calorimetry (DSC), was conducted using a LabSys Evo 1600 thermal analyzer (SETARAM, France

Control of morphology and crystallinity of CNTs in flame synthesis with one-dimensional reaction zone

• Muhammad Hilmi Ibrahim,
• Norikhwan Hamzah,
• Mohd Zamri Mohd Yusop,
• Ni Luh Wulan Septiani and
• Mohd Fairus Mohd Yasin

Beilstein J. Nanotechnol. 2023, 14, 741–750, doi:10.3762/bjnano.14.61

• morphology of the MWCNTs similar to that of MWCNTs obtained from CVD. Raman spectroscopy showed constant IG/ID ratios after all runs, and thermogravimetric analysis (TGA) results showed almost equal CNT oxidation temperatures, indicating similar purity. The constant crystallinity determined from the ID/IG

Carbon nanotube-cellulose ink for rapid solvent identification

• Tiago Amarante,
• Thiago H. R. Cunha,
• Claudio Laudares,
• Ana P. M. Barboza,
• Ana Carolina dos Santos,
• Cíntia L. Pereira,
• Vinicius Ornelas,
• Bernardo R. A. Neves,
• André S. Ferlauto and
• Rodrigo G. Lacerda

Beilstein J. Nanotechnol. 2023, 14, 535–543, doi:10.3762/bjnano.14.44

• contact mode. AC160TS silicon cantilevers from Olympus with a typical spring constant of k ≈ 46 N/m, a nominal radius of curvature of r ≈ 7 nm, and a resonant frequency of ω0 ≈ 300 kHz were employed. Heat flow and weight changes of selected solvents were determined by thermogravimetric analysis (TGA

Two-step single-reactor synthesis of oleic acid- or undecylenic acid-stabilized magnetic nanoparticles by thermal decomposition

• Mykhailo Nahorniak,
• Pamela Pasetto,
• Jean-Marc Greneche,
• Volodymyr Samaryk,
• Sandy Auguste,
• Anthony Rousseau,
• Nataliya Nosova and
• Serhii Varvarenko

Beilstein J. Nanotechnol. 2023, 14, 11–22, doi:10.3762/bjnano.14.2

• of the reagents in paraffin compared to the rest of the synthetic approaches, were spherical (Figure 3). However, the yield of this synthesis, which was estimated in terms of maghemite according to the results of thermogravimetric analysis (TGA), was significantly lower compared to those conducted in

• , thereby proving their partial oxidation [39][40]. The Fourier-transform infrared spectroscopy/attenuated total reflectance (ATR-FTIR) and TGA techniques were used for surface characterization in terms of the presence of higher fatty acids, which play an essential role in the stability and future

• with the TGA results, in which the nanoparticles synthesized under the same conditions but with divergent carboxylic acids contained significantly different amounts of the organic phase. Determined from the TGA curves, the content of the stabilizer for the samples TMO-I (coated with OA) and TMU-V

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

• pineapple peel extracts and their behavior on the breast cancer cell line MCF-7 is shown. Bioreactions were monitored at different temperatures. Fourier-transform infrared spectroscopy (FTIR), ultraviolet–visible spectroscopy (UV–vis), thermogravimetric analysis (TGA), X-ray diffraction (XRD), energy

• /AgCl nanoparticles as observed by FTIR spectroscopy (Figure 5). The reducing species are oxidized and as a consequence have greater thermal stability. Hence, the higher temperature-shifted TGA curves show the thermal behavior of the modified metabolites during chemical reaction. The results are also

• thermal analyzer, with a heating rate of 20 °C/min, under a nitrogen atmosphere, and a temperature range of 30–800 °C. To carry out XRD, EDX, FTIR, and TGA analyses, the pineapple peel extract and the reaction products were previously dried at 110 °C for 24 h. Cell culture In a similar manner to [51], the

Green synthesis of zinc oxide nanoparticles toward highly efficient photocatalysis and antibacterial application

• Vo Thi Thu Nhu,
• Nguyen Duy Dat,
• Le-Minh Tam and
• Nguyen Hoang Phuong

Beilstein J. Nanotechnol. 2022, 13, 1108–1119, doi:10.3762/bjnano.13.94

• microscopy (HR-TEM) on a JEOL JEM-2100. The thermal decomposition of zinc resinate to form ZnO NPs were studied by thermal gravimetric analysis (TGA) and differential thermal analysis (DTA) curves using thermal gravimetric analysis (DSC131, LABSYS TG/DSC1600, TMv), by heating up to 1000 °C at a heating rate

• Characteristics of synthesized ZnO NPs Figure 2 shows the results of DTA/TG analysis of zinc resinate. The TGA curve at a temperature range between 30–300 °C shows an exothermic peak at 172.93 °C and a weight loss of 7%, which corresponds to dehydration of physically adsorbed water. At temperatures between 300