Characterization of highly transparent crosslinked gamma Polyvinylidene fluoride films prepared by the electron beam irradiation

Methane decomposition and characterization of conversion products in a continuous process via electron beam irradiation

Development of electron beam irradiation station for FLASH experiments at the PBP-CMU Electron Linac Laboratory

Effect of UV-ozone pretreatment on the reduction of carbonous contamination due to electron beam irradiation of gold surfaces

Electron beam-persulfate system effectively reduces polycyclic aromatic hydrocarbons and Cr(VI) emissions: Environmental matrix impact and mechanism analysis.

Understanding the effects of electron-beam irradiation of honey on its biochemical properties

ABSTRACT Chicken feathers are an abundant residue and a suitable material for obtaining soluble keratin. This study explored the combination of physical, chemical and enzimatic processes to maximize protein yield. Initially, chicken feathers were washed, ground, and subjected to electron beam irradiation at doses from 0 (control) to 25 kGy. Keratin was then solubilized using 0.5 M Na₂S at 18°C, followed by H₂O₂ purification. A thermal-alkaline treatment (0.5 M NaOH, 1:50 w/w, 95°C for 2 min) was evaluated as an alternative for solubilization. Finally, hydrolysis using alcalase, trypsin, or bromelain was conducted on the residual solid. Results showed a soluble keratin yield of 92.78% with Na2S and 25 kGy, significantly surpassing the control (75.55%). While NaOH extraction achieved a slightly lower yield (90.71%), alcalase treatment of the solid residue yielded an additional 11.88%, achieving an overall 91.81%. Further studies should assess the use of the hydrolysates as animal feed.

Chemo-reirradiation has emerged as a feasible neoadjuvant therapy to improve resectability in locally recurrent rectal cancer (LRRC). However, its combination with surgery and intraoperative electron radiotherapy (IOERT) raises concerns regarding cumulative toxicity. This retrospective study aimed to evaluate acute and late toxicity profiles, local control and survival outcomes, following this multimodal approach in our institution. LRRC patients who underwent chemo-reirradiation and surgery with IOERT (median cumulative tumour dose of 113Gy, α/β = 10Gy) between September 2021 to December 2024 were retrospectively analysed. Acute and late treatment-related toxicities (CTCAE) were recorded in a prospectively maintained database. Secondary outcomes were overall survival (OS) and local re-recurrence-free survival (LRFS). Among 40 patients, no grade 4 or 5 toxicities were observed. Acute cumulative treatment-related grade 3 toxicities occurred in 14/37 (38%) patients, predominantly consisting of erectile dysfunction (5/37, 14%), abscess formation (4/37, 11%) or peripheral neuropathy (2/37, 5%). Late grade 3 toxicities occurred in 13/30 (43%) patients, comprising mainly of erectile dysfunction (5/30, 17%), renal disorders (5/30, 17%) or peripheral neuropathy (2/30, 7%). After a median follow-up period of 21 months (IQR 12-32) after surgery, 2-year overall survival (OS) and local re-recurrence-free survival (LRFS) were 75.7% and 37.2%, respectively. In previously irradiated LRRC patients, a multimodality approach combining chemo-reirradiation and extensive surgery with IOERT demonstrated acceptable treatment-related toxicities and favourable oncological outcomes for this high-risk population. Further research with longer follow-up is warranted to identify risk factors associated with treatment-related toxicity.

Enhanced pulse protein-proanthocyanidin interactions through electron beam irradiation.

Proteomic and flavor dynamics in irradiated scallop adductor muscle during refrigerated storage via 4D-DIA proteomics.

This study evaluated the effects of low-dose electron beam irradiation (EBI) at 50, 100, and 150Gy on the membrane characteristics, growth, and antimicrobial activity of the One Health probiotic strain Lactiplantibacillus plantarum ZPZ. Findings were compared with those of Lactobacillus acidophilus DDS®-1 to assess strain-specific responses. Results indicated a dose-dependent reduction in growth, with untreated Lpb. plantarum ZPZ cultures averaged 1.26 × 107 CFU/mL, decreasing to 1.45 × 106 CFU/mL at 150Gy (P < 0.05). Antimicrobial efficacy also decreased from 0.16 in untreated samples to 0.31 in samples treated with 150Gy (P < 0.05, OD600). While surface hydrophobicity was initially reduced by 50Gy treatment, it was restored by 150Gy treatment, which correlated with an 82.7% increase in biofilm formation (r = 0.67). The obtained results show that EBI modulates the functional properties of Lpb. plantarum ZPZ and therefore indicates the possibility of its application in food safety and One Health strategies. Further studies are needed to elucidate the underlying molecular mechanisms.

Polytetrafluoroethylene (PTFE) is a widely used fluoropolymer known for its chemical stability and resistance to degradation, making it a persistent environmental pollutant. The bioremediation of PTFE has proven challenging due to its inert nature. The aim of the present study is to characterize how changes in PTFE and irradiated PTFE may affect the proteomic profile of Aspergillus niger to propose protein biomarkers and depict bioremoval strategies. The results show that irradiating PTFE causes structural and spectral changes that increase with the increase of electron beam irradiation doses at 20, 40, 80, 160, and 320 kGy as compared to the control. PTFE and irradiated PTFE were added to a 24 h Aspergillus niger culture, and the proteomic profile was studied using quantitative protein assay and a high-throughput Ultra Performance Liquid Chromatography (UPLC) proteomics approach. The resultant chromatograms show that peak shifts can serve as a rapid indicator of PTFE and irradiated PTFE, highlighting the potential of proteomic profiling as a rapid screening tool. Energy Dispersive X-Ray (EDX) mapping images show fluoride attached to A. niger mycelia, while quanitative SPADNS Fluoride assay revealed deflourination % of 28.0 and 31.6% for 80 and 320 kGy irradiated PTFE culture, respectively, as compared 11.2% for non-irradiated PTFE. These findings suggest that 1) high electron beam irradiation doses enhance PTFE degradation, 2) the proteomic profile can be used as a biomarker to detect the presence of PTFE or irradiated PTFE, and 3) A. niger can be further exploited for both PTFE and irradiated PTFE bioremoval via deflourination or adsorption on mycelial network. Further research is needed to enhance the deflourination process.Supplementary InformationThe online version contains supplementary material available at 10.1007/s10532-025-10215-4.

Effect of electron beam irradiation on the hierarchical structure and physicochemical properties of starch isolated from oat grains.

Effects of temperature on the decomposition of PTFE induced by electron beam irradiation

Diamond is widely considered for high-temperature applications in extreme environments due to its exceptional hardness, thermal conductivity, and chemical inertness. However, its performance is limited by surface oxidation when exposed to high-temperature oxidative environments. Here, we comprehensively investigate the surface oxidation failure of diamond nanoneedles under oxygen atmosphere, electron beam irradiation and thermal activation. The dynamic oxidation process is monitored by spherical aberration-corrected environmental transmission electron microscopy (ETEM). Our results reveal an anisotropic oxidation behavior, where the reaction front preferentially propagates along the {111} and {001} through progressive degradation. This crystallographic selectivity highlights inherent differences in surface stability and reactivity among diamond facets. Initially, a continuous amorphous carbon coating layer provides protection to the diamond surface by acting as a diffusion barrier. However, once the layer thins below a critical threshold (∼10.2 ± 0.5 nm), it undergoes topological fragmentation, exposing the diamond to anisotropic oxidation, which proceeds preferentially along the (111) and (001) planes. Additionally, we demonstrate that the oxidation rate is significantly enhanced by the synergy of localized electronic excitation and thermal effects, which effectively lowers the activation energy barrier. These atomic-scale insights establish a mechanistic foundation for designing oxidation-resistant diamond coatings and provide experimentally accessible routes for validating and translating ETEM-derived mechanisms into engineering practice.

Understanding and controlling nanoparticle coalescence is crucial for applications ranging from catalysis to nanodevice fabrication, yet the behavior of nanoparticles on dynamically evolving, heterogeneous substrates remains poorly understood. Here, we employ in situ transmission electron microscopy to investigate platinum (Pt) nanoparticle dynamics on silicon nitride (SiNx) substrates where localized crystalline silicon (Si) nanodomains are deliberately formed via electron beam irradiation at 800 °C. We observe that Pt nanoparticles in contact with these Si pads transform into a more mobile platinum silicide (Pt3Si) phase. Strikingly, these Pt3Si nanoparticles exhibit pronounced directional migration away from the Si pads, driven by interfacial energy gradients, rather than undergoing stochastic Brownian motion. This directed movement fundamentally dictates coalescence pathways, leading to either enhanced sintering when particles are channeled together or inhibited coalescence when Si pads act as repulsive barriers. Our findings reveal that local substrate chemistry and the resulting interfacial energy landscapes can dominate over initial particle size or proximity in controlling solid-state nanoparticle migration and assembly. This work provides insights into how emergent substrate heterogeneity biases nanoparticle behavior by guiding precontact migration pathways, thereby challenging conventional coalescence models that assume random particle motion, and suggesting a route toward the rational design of supported nanomaterials.

ABSTRACT Strawberry ( Fragaria ananassa Duch) is a fresh agricultural product and a major export commodity of South Korea. Bemisia tabaci (Hemiptera: Aleyrodidae) is an economically important pest in agriculture. We investigated the effects of electron beam and X‐ray irradiation on the disinfestation of B. tabaci in packaging boxes of fresh strawberries intended for export. Hatching of B. tabaci eggs was completely prevented by both electron beam irradiation at 150 Gy and X‐ray irradiation at 70 Gy. Nymphal development into adults was entirely inhibited by 150 Gy of either electron beam or X‐ray irradiation. When B. tabaci adults were irradiated with 100 Gy (both electron beam and X‐ray), some adults laid eggs, but none of the eggs hatched. To assess the efficacy of electron beam and X‐ray irradiation for quarantine treatment, B. tabaci individuals were placed at the top, middle, and bottom layers of strawberry packing boxes and exposed to various doses (150, 200, and 300 Gy) of radiation. These results suggest that a minimum dose of 150 Gy of either electron beam or X‐ray irradiation is effective for controlling B. tabaci in strawberries destined for export.

Self-crosslinked fucoidan nanoparticles via electron beam irradiation: synthesis, physicochemical analysis, and drug delivery application

Recent trends in harnessing potential techniques for the functionalization of granular cold-water swelling starch prepared using alkali-based protocols: A comprehensive review.

Structural evolution and retrogradation behavior of wheat starch induced by electron beam irradiation