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Search for "gas" in Full Text gives 941 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Ultrathin water layers on mannosylated gold nanoparticles

  • Maiara A. Iriarte Alonso,
  • Jorge H. Melillo,
  • Silvina Cerveny,
  • Yujin Tong and
  • Alexander M. Bittner

Beilstein J. Nanotechnol. 2025, 16, 2183–2198, doi:10.3762/bjnano.16.151

Graphical Abstract
  • dimannose groups. The increased water adsorption of dimanno-AuNPs, compared to the well-studied PEG AuNPs, makes them candidates for gas sensing applications. Sensors are usually kept dry and then become hydrated in standard environments. Whenever dry conditions are problematic, our study suggests testing
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Published 04 Dec 2025

Microplastic pollution in Himalayan lakes: assessment, risks, and sustainable remediation strategies

  • Sameeksha Rawat,
  • S. M. Tauseef and
  • Madhuben Sharma

Beilstein J. Nanotechnol. 2025, 16, 2144–2167, doi:10.3762/bjnano.16.148

Graphical Abstract
  • samples from the environment makes nanoscale plastics yet another challenge. Sophisticated methods such as thermal extraction desorption (TED) and gas chromatography-mass spectrometry (GC-MS) are now routinely used to detect these particles. But these methods involve a lot of expertise and equipment. The
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Published 25 Nov 2025

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

Graphical Abstract
  • poor physicochemical and organoleptic properties. This study aimed to develop and optimize a topical microemulsion (ME) system incorporating P. setacea seed oil using quality by design principles to address formulation challenges. The oil was extracted via Soxhlet and characterized by gas
  • ), followed by gas chromatography coupled with mass spectroscopy (GC–MS) analysis. The relative composition of fatty acids is presented in Table 1, and the corresponding chromatogram is provided in Figure S1 (Supporting Information File 1). The major constituents identified in OPS were linoleic acid (64.69
  • , the organic (n-hexane) layer was collected and washed three times with saturated NaCl solution to remove residual reagents. A 200 µL aliquot of the organic phase was then dried at room temperature in pre-weighted vials. FAME quantification was performed using a gas chromatograph (GC Agilent 8860
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Published 20 Nov 2025

Stereodiscrimination of guests in chiral organosilica aerogels studied by ESR spectroscopy

  • Sebastian Polarz,
  • Yasar Krysiak,
  • Martin Wessig and
  • Florian Kuhlmann

Beilstein J. Nanotechnol. 2025, 16, 2034–2054, doi:10.3762/bjnano.16.140

Graphical Abstract
  • high surface area and customizable chiral environments. A highly important and highly developed area of application of chiral materials possessing a high surface area is chromatography [11][12][13]. Techniques like high-performance liquid chromatography (HPLC) [13] and gas chromatography [14] are
  • measurements more difficult. There are other valuable methods for investigating transport in porous media such as gas-adsorption methods, X-ray tomography [24][25], neutron imaging techniques [26][27], optical imaging techniques [27][28], or impedance spectroscopy [29][30]. For all of them, it is difficult to
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Published 13 Nov 2025

Laser ablation in liquids for shape-tailored synthesis of nanomaterials: status and challenges

  • Natalie Tarasenka

Beilstein J. Nanotechnol. 2025, 16, 1963–1997, doi:10.3762/bjnano.16.137

Graphical Abstract
  • molecules are more probable in the liquid phase as compared to the cavitation bubble due to a much higher concentration of the target material species in the bubble as compared to that of the liquid molecules. Moreover, since NPs are shown to be partially localized in the gas bubble and partially travelling
  • , produced either through liquid evaporation or from reactive species generated during decomposition, such as hydrogen, hydrogen peroxide, and oxygen. The type of gas emitted depends on the liquid composition and can influence the morphology of the resulting NPs. As shown in [55], the ablation in ethanol
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Published 10 Nov 2025

Evaluating metal-organic precursors for focused ion beam-induced deposition through solid-layer decomposition analysis

  • Benedykt R. Jany,
  • Katarzyna Madajska,
  • Aleksandra Butrymowicz-Kubiak,
  • Franciszek Krok and
  • Iwona B. Szymańska

Beilstein J. Nanotechnol. 2025, 16, 1942–1951, doi:10.3762/bjnano.16.135

Graphical Abstract
  • create a new precursor, extensive testing using specialized gas injection systems is required along with time-consuming and costly chemical analysis typically conducted using scanning electron microscopy (SEM). This process can be quite challenging due to its complexity and expense. Here, the response of
  • irradiation differs from gas-phase deposition, we think that our method can be employed to optimize pre-screen and score new potential precursors for FIB applications by significantly reducing the time required and conserving valuable resources. Keywords: backscattered electrons (BSE); carboxylates; energy
  • duration of the electron or ion beam pulses. In FEBID and FIBID, volatile precursor molecules are delivered to the substrate surface via a gas injection system (GIS), where they adsorb and are subsequently decomposed by a focused electron or ion beam with energies in the kiloelectronvolt range. While
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Published 04 Nov 2025

Targeting the vector of arboviruses Aedes aegypti with nanoemulsions based on essential oils: a review with focus on larvicidal and repellent properties

  • Laryssa Ferreira do Nascimento Silva,
  • Douglas Dourado,
  • Thayse Silva Medeiros,
  • Mariana Alice Gonzaga Gabú,
  • Maria Cecilia Queiroga dos Santos,
  • Daiane Rodrigues dos Santos,
  • Mylena Lemos dos Santos,
  • Gabriel Bezerra Faierstein,
  • Rosângela Maria Rodrigues Barbosa and
  • Fabio Rocha Formiga

Beilstein J. Nanotechnol. 2025, 16, 1894–1913, doi:10.3762/bjnano.16.132

Graphical Abstract
  • efficiency reached 85.4%, according to gas chromatography analysis. In the tests, Sprague Dawley rats received the formulation applied to their backs before being exposed to 50 female Ae. aegypti for 8 hours. The average protection was 87.81%, surpassing the pure oil (54.57%) and falling below DEET (100
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Published 28 Oct 2025

Further insights into the thermodynamics of linear carbon chains for temperatures ranging from 13 to 300 K

  • Alexandre Rocha Paschoal,
  • Thiago Alves de Moura,
  • Juan S. Rodríguez-Hernández,
  • Carlos William de Araujo Paschoal,
  • Yoong Ahm Kim,
  • Morinobu Endo and
  • Paulo T. Araujo

Beilstein J. Nanotechnol. 2025, 16, 1818–1825, doi:10.3762/bjnano.16.125

Graphical Abstract
  • interactions, and that mutual interactions between chain-like structures and their hosts are second-order effects [61][62][63][64][65]. Sulfur chains inside SWCNT have also demonstrated enhanced field-emission properties and outstanding gas-sensing properties [66][67], which once again corroborate the idea
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Published 20 Oct 2025

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

Graphical Abstract
  • . These characterizations were performed to ensure the quality and stability of the formulations and to evaluate their suitability for ophthalmic applications. Gas chromatograph with flame ionization detection (GC-FID) LO’s fatty acid methyl esters were transesterified as described in [37][38]. Briefly, 1
  • phase. The supernatant was washed three times with 10% (w/v) citric acid and then concentrated via rotary evaporation. A 2 µL aliquot of the supernatant was injected in split injection mode (1:10 in ethyl acetate) into a gas chromatograph with flame ionization detection (GC-FID) model 7290 A (Agilent
  • Technologies, USA). The column used was a SP®-2560 capillary GC column (100 m × 0.25 mm × 0.20 µm) (Supelco). The injector temperature was maintained at 230 °C, with helium (He) serving as the carrier gas at a flow rate of 1 mL·min−1. The oven temperature was programmed to increase from 150 to 300 °C at a rate
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Published 02 Oct 2025

Ambient pressure XPS at MAX IV

  • Mattia Scardamaglia,
  • Ulrike Küst,
  • Alexander Klyushin,
  • Rosemary Jones,
  • Jan Knudsen,
  • Robert Temperton,
  • Andrey Shavorskiy and
  • Esko Kokkonen

Beilstein J. Nanotechnol. 2025, 16, 1677–1694, doi:10.3762/bjnano.16.118

Graphical Abstract
  • tracking surface chemical processes in real time. Due to the scattering of the photoelectrons in a gas environment at millibar pressures, APXPS is intrinsically a photon-hungry technique. Although pioneering work on gases and liquids performed by Kai and Hans Siegbahn date back to the 1970s [1], it was
  • gas, solid–liquid, and liquid–gas interfaces in situ and under operando conditions. In this review, we highlight exemplary APXPS experiments conducted in different environments to study solid–gas and solid–liquid interfaces. APXPS at MAX IV is making a considerable contribution in various scientific
  • fields including catalysis, energy materials, and corrosion, to name a few. As an example in catalysis research, we will discuss experiments on solid–gas interfaces about single-atom catalysts, catalysis in confined space, time-resolved catalysis, and photocatalysis. Remaining in the solid–gas
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Published 24 Sep 2025

Nanotechnology-based approaches for the removal of microplastics from wastewater: a comprehensive review

  • Nayanathara O Sanjeev,
  • Manjunath Singanodi Vallabha and
  • Rebekah Rubidha Lisha Rabi

Beilstein J. Nanotechnol. 2025, 16, 1607–1632, doi:10.3762/bjnano.16.114

Graphical Abstract
  • calorimetry, pyrolysis gas chromatography mass spectrometry, and thermal extraction desorption gas chromatography are useful in identifying the chemical composition of MPs but are destructive analytical techniques [132][133]. Spectroscopic analysis like Raman spectroscopy often suffers from a poor signal-to
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Published 15 Sep 2025

Modeling magnetic properties of cobalt nanofilms used as a component of spin hybrid superconductor–ferromagnetic structures

  • Aleksey Fedotov,
  • Olesya Severyukhina,
  • Anastasia Salomatina and
  • Anatolie Sidorenko

Beilstein J. Nanotechnol. 2025, 16, 1557–1566, doi:10.3762/bjnano.16.110

Graphical Abstract
  • potential multi-body model: where Fi is the immersion function of each atom in the electron gas created by electrons of all other atoms of the system; ϕij(rij) is the pair potential function; rij = |rij| = |rj − rj| is the distance between two atoms with numbers i and j; and is the background electron
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Published 08 Sep 2025

Transient electronics for sustainability: Emerging technologies and future directions

  • Jae-Young Bae,
  • Myung-Kyun Choi and
  • Seung-Kyun Kang

Beilstein J. Nanotechnol. 2025, 16, 1545–1556, doi:10.3762/bjnano.16.109

Graphical Abstract
  • materials exhibit strong potential for the use in implantable medical devices. For instance, Ge nanomembranes have been employed in fully biodegradable strain and temperature sensors, demonstrating proven biocompatibility and gas-free dissolution. In addition, IGZO has been utilized to fabricate transient
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Published 04 Sep 2025

Laser processing in liquids: insights into nanocolloid generation and thin film integration for energy, photonic, and sensing applications

  • Akshana Parameswaran Sreekala,
  • Pooja Raveendran Nair,
  • Jithin Kundalam Kadavath,
  • Bindu Krishnan,
  • David Avellaneda Avellaneda,
  • M. R. Anantharaman and
  • Sadasivan Shaji

Beilstein J. Nanotechnol. 2025, 16, 1428–1498, doi:10.3762/bjnano.16.104

Graphical Abstract
  • comprehensive understanding of the process flow, from the laser-induced ejection of material into the gas phase, through its processing and movement in the plume, to its eventual deposition onto a substrate. Figure 1 shows key developments in thin film synthesis and laser-based processing from 1909 to 2025
  • substrate and the spray nozzle, substrate temperature, and precursor solution concentration. Additionally, the properties of the films depend on variables like the spray rate, ambient atmosphere, droplet size, carrier gas, and post-deposition cooling. One of the key advantages of this method is its ability
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Published 27 Aug 2025

Ferroptosis induction by engineered liposomes for enhanced tumor therapy

  • Alireza Ghasempour,
  • Mohammad Amin Tokallou,
  • Mohammad Reza Naderi Allaf,
  • Mohsen Moradi,
  • Hamideh Dehghan,
  • Mahsa Sedighi,
  • Mohammad-Ali Shahbazi and
  • Fahimeh Lavi Arab

Beilstein J. Nanotechnol. 2025, 16, 1325–1349, doi:10.3762/bjnano.16.97

Graphical Abstract
  • chemodynamic and gas treatment could trigger mitochondrial damage and the formation of mtROS, resulting in the production of LPO active substances and finally inducing ferroptosis [150]. Figure 3 summarizes the key mechanisms of enhanced cancer therapy, which include induction of ferroptosis, apoptosis, and
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Published 14 Aug 2025

Deep-learning recognition and tracking of individual nanotubes in low-contrast microscopy videos

  • Vladimir Pimonov,
  • Said Tahir and
  • Vincent Jourdain

Beilstein J. Nanotechnol. 2025, 16, 1316–1324, doi:10.3762/bjnano.16.96

Graphical Abstract
  • and carrier gas. Oxygen and water sensors monitored gas-phase contaminants at the outlet line. In situ microscopy Nanotube growth was imaged in situ using a custom-built optical setup for homodyne polarization microscopy. A supercontinuum source (Fianium SC-400-4, 2 ps pulses, 40 MHz, spectral range
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Published 13 Aug 2025

Acrocomia aculeata oil-loaded nanoemulsion: development, anti-inflammatory properties, and cytotoxicity evaluation

  • Verónica Bautista-Robles,
  • Hady Keita,
  • Edgar Julián Paredes Gamero,
  • Layna Tayná Brito Leite,
  • Jessica de Araújo Isaías Muller,
  • Mônica Cristina Toffoli Kadri,
  • Ariadna Lafourcade Prada and
  • Jesús Rafael Rodríguez Amado

Beilstein J. Nanotechnol. 2025, 16, 1277–1288, doi:10.3762/bjnano.16.93

Graphical Abstract
  • min. Once cooled, the solution was extracted with 5 mL of n-hexane and centrifuged. 20 μL of supernatant (hexane phase) were injected directly into the GC-MS system (Mega 2 series gas chromatograph coupled to a SHIMADZU GC-MS-QP500 mass spectrometer (GC-MS) (Japan)) [60]. A 30 m × 0.32 mm capillary
  • column with a 0.25 mm thick layer (66DB-5MS, Agilent Technologies, USA) was used as the stationary phase. Helium gas was used as carrier gas at a flow rate of 1.0 mL/min with a split ratio of 1:10. The injector temperature was set to 250 °C. The oven temperature was set to 130 °C for 10 min and then
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Published 06 Aug 2025

Better together: biomimetic nanomedicines for high performance tumor therapy

  • Imran Shair Mohammad,
  • Gizem Kursunluoglu,
  • Anup Kumar Patel,
  • Hafiz Muhammad Ishaq,
  • Cansu Umran Tunc,
  • Dilek Kanarya,
  • Mubashar Rehman,
  • Omer Aydin and
  • Yin Lifang

Beilstein J. Nanotechnol. 2025, 16, 1246–1276, doi:10.3762/bjnano.16.92

Graphical Abstract
  • asymmetrical catalysis of urea to ammonia acts as a gas jet to propel the microrobots to the desired site of action [54]. 1.2 Lipoprotein-based biomimetic nanoparticles Lipoproteins are complex structures with a lipid core, usually cholesterol esters and triglycerides, surrounded by a monolayer of
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Published 05 Aug 2025

Electronic and optical properties of chloropicrin adsorbed ZnS nanotubes: first principle analysis

  • Prakash Yadav,
  • Boddepalli SanthiBhushan and
  • Anurag Srivastava

Beilstein J. Nanotechnol. 2025, 16, 1184–1196, doi:10.3762/bjnano.16.87

Graphical Abstract
  • functional theory (DFT) to explore the sensing capabilities of a ZnS (3,3) nanotube (ZnS NT) for detecting chloropicrin (CP, CCl3NO2), a highly toxic gas. To elucidate the sensing mechanism, we systematically analyze the adsorption configurations, Mulliken charge transfer, band structure, density of states
  • spectra and optical conductivity peaks, highlight the potential of ZnS NT for designing sensitive and reusable CP gas sensors. Keywords: chemical sensor; chloropicrin (CP); density functional theory; zinc sulfide nanotubes (ZnS NTs); Introduction Chloropicrin (CP), also known as trichloronitromethane
  • for applications ranging from ultraviolet light-emitting diodes and injection lasers to flat-panel displays and sensors [15][16][17][18][19]. ZnS, a promising transition metal chalcogenide with a wide bandgap of approximately 3.7 eV, has shown remarkable potential in gas sensing applications
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Published 25 Jul 2025

Crystalline and amorphous structure selectivity of ignoble high-entropy alloy nanoparticles during laser ablation in organic liquids is set by pulse duration

  • Robert Stuckert,
  • Felix Pohl,
  • Oleg Prymak,
  • Ulrich Schürmann,
  • Christoph Rehbock,
  • Lorenz Kienle and
  • Stephan Barcikowski

Beilstein J. Nanotechnol. 2025, 16, 1141–1159, doi:10.3762/bjnano.16.84

Graphical Abstract
  • HEA NPs could also be synthesized by inert gas condensation as stated very recently by Zhou et al. [31]. However, none of these aforementioned synthesis techniques give access to colloidal HEA NPs but to structures bound to an often very specific support material or limited to gas phase conditions. An
  • organic solvents, active carbon species (radicals, permanent gases, degradation and condensation products as well as elemental carbon) were shown to form by various studies, conducting techniques such as gas-displacement quantifications and subsequent analysis via gas chromatography-coupled techniques [92
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Published 17 Jul 2025

Influence of ion beam current on the structural, optical, and mechanical properties of TiO2 coatings: ion beam-assisted vs conventional electron beam evaporation

  • Agata Obstarczyk and
  • Urszula Wawrzaszek

Beilstein J. Nanotechnol. 2025, 16, 1097–1112, doi:10.3762/bjnano.16.81

Graphical Abstract
  • , and good availability, TiO2 in the form of thin films is now widely used in the development of gas sensors, photodetectors, solar cells, memristors, and photocatalysts [1][12][15][16][17]. The area of application of titanium dioxide is also related to the crystal structure in which it occurs, that is
  • crucible. Diffusion and a rotary backing pumps enabled a base pressure in the vacuum chamber below 1.5·10−5 mbar. The operating pressure in the IBAD process was kept below 1.7·10−3 mbar, and the thin film coatings were deposited with an additional oxygen gas flow of 100 sccm. The ion beam gun (Advanced
  • anatase and rutile phases, prepared by magnetron sputtering using continuous and pulsed gas flow processes were 0.17 and 0.24 eV, respectively. It was found that the lower value of Eu was obtained for the anatase thin film, which was directly related to the much more ordered structure of this layer, as
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Published 14 Jul 2025

Single-layer graphene oxide film grown on α-Al2O3(0001) for use as an adsorbent

  • Shiro Entani,
  • Mitsunori Honda,
  • Masaru Takizawa and
  • Makoto Kohda

Beilstein J. Nanotechnol. 2025, 16, 1082–1087, doi:10.3762/bjnano.16.79

Graphical Abstract
  • dried under nitrogen gas blow. Cs adsorption Prior to Cs adsorption, the SLGO surface was treated with aqueous solutions which were adjusted to pH 4, 7, and 9 prior to the adsorption of the Cs atoms. Solutions with pH values of 4 and 9 were adjusted with acetate and borate buffer solutions, respectively
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Published 10 Jul 2025

Piezoelectricity of hexagonal boron nitrides improves bone tissue generation as tested on osteoblasts

  • Sevin Adiguzel,
  • Nilay Cicek,
  • Zehra Cobandede,
  • Feray B. Misirlioglu,
  • Hulya Yilmaz and
  • Mustafa Culha

Beilstein J. Nanotechnol. 2025, 16, 1068–1081, doi:10.3762/bjnano.16.78

Graphical Abstract
  • such as low synthesis scalability, unavoidable defects, and inhomogeneity. Producing high-quality hBNs with controlled layer numbers depends heavily on precursor selection, ambient gas conditions, and substrate of choice [37]. Emerging solutions include both top-down (mechanical and chemical
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Published 07 Jul 2025

Soft materials nanoarchitectonics: liquid crystals, polymers, gels, biomaterials, and others

  • Katsuhiko Ariga

Beilstein J. Nanotechnol. 2025, 16, 1025–1067, doi:10.3762/bjnano.16.77

Graphical Abstract
  • alignment, from vertical to planar. Subsequently, exposure to oxygen oxidizes the adsorbed hydrogen, reforming the adsorbed oxygen on the Pd/Au surface and restoring the liquid crystal to its initial alignment. The motion of the liquid crystal can be controlled by exposure to gas mixtures of H2 and O2 with
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Published 04 Jul 2025

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

Graphical Abstract
  • temperature and load on the flowability of the composite. The sample density (ρ) was measured according to PN-EN ISO 1183-3:2003 “Plastics – Methods for Determining the Density of Non-Cellular Plastics – Part 3: Gas Pyknometer Method”, using a helium pycnometer (Anton Paar Ultrapyc 5000, Graz, Austria). The
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Published 03 Jul 2025
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