Sung In Jeong's research while affiliated with Korea Atomic Energy Research Institute (KAERI) and other places

... In addition, they are commonly used for the irradiation of foods to improve their quality and extend shelf life. Also, gamma-ray irradiation is commonly applied in sterilizing medical products due to its simple sterilization without heat generation [25]. A COVID-19 rapid letter stated by Venkatraman et al. [26] proposed an idea of how gamma rays are used to breakthrough COVID-19 to manage its outbreak. ...

... The overall classifications were tabulated with their relevant references, and the class percentage data was graphically presented. The applications, which have very rare publications, such as gene delivery [49,50], were ignored, although they might be appealing for preparation with other methods falling beyond the scope of this article. ...

... The FTIR spectrum (Figure 4) characteristic of pure BNC is marked by bands in the region of 3345 cm -1 , which according to He et al. [25] , is characteristic of the stretching of the hydroxyl groups present in BNC. In addition, the CH stretching and asymmetric stretching at 2897 cm -1 , CH 2 deformation at 1427 cm -1 , OH deformation at 1315 and 1359 cm -1 , as well as the antisymmetric bridge of the C-O-C stretch at 1109 and 1162 cm -1 and the band in the region of 1056 cm -1 related to the vibrations of the C-O stretch are characteristic of BNC [26,27] . Another exciting band, located around 400 to 700 cm -1 , is characteristic of the torsion of the OH groups. ...

... Among the studied irradiation doses, 50 kGy proved to be an effective dose, allowing the maintenance of excellent antioxidant and functional properties. Further, the physical properties (e.g., gel fraction, compressive strength) of irradiated β-glucans were enhanced by increasing the irradiation dose [41]. Taken together, irradiated β-glucan exhibits: (a) a higher antimicrobial activity compared to the native samples; (b) an enhanced antioxidant, antitumor and antiproliferative activity; and finally, (c) an enhanced response in the immune system, suggesting that smaller molecules of irradiated β-glucans have a higher chance of binding to a receptor. ...

... The thicker membranes were those produced by K. xylinus DSM 46604 from glucose as the sole carbon source (44 ± 2.2 µm) and in the glucose/styrene mixtures (22 ± 1.1 µm). These values are among those reported for BC membranes (20-200 µm) (Peres et al. 2016;Lee et al. 2017;Vázquez et al. 2021). However, considerably lower thickness values were observed for K. xylinus DSM 2325 and K. xylinus DSM 2004 BC produced in the glucose/styrene mixtures (6 ± 0.3 and 7 ± 0.4 µm, respectively), while even lower values were displayed by the BC membranes produced by K. xylinus DSM 2004 grown on styrene as sole carbon source (3 ± 0.2 µm) ( Table 2), which is concomitant with the lower BC production observed in these conditions. ...

... Gamma-ray irradiation can induce various chemical reactions (e.g., polymerization, decomposition, surface modification, and crosslinking) using radical recombination reactions due to their high energy and self-ionization. In addition, it has the advantage of being able to induce reactions in various environments (e.g., oxygen, nitrogen, and vacuum) and states (e.g., solids and liquids) [34,43,44]. Various reactions can be induced by controlling the polymer properties and the conditions of the gamma-ray-irradiation dose and dose rate. ...

... Lee et al., for example, coated HA with b-cyclodextrin (b-CD) to improve the binding of drugs such as adamantane and simvastatin, given that b-CD was shown to mediate the drug-HA interaction. The resulting composite was able to enhance the osteogenic differentiation of adipose-derived stromal cells [84,85]. ...

... Several clinical [46] and experimental studies [47] have demonstrated the effectiveness of this membrane as a biological barrier in significant bone defects-either combined with a biomaterial, or used in isolation. This guided bone regeneration (GBR) technique is gradually being applied in clinical practice to effectively compensate for the lack of bone mass [48]. ...

... Cartilage-derived ECM also known as cartilage acellular matrix (CAM) is complex and similar to that of natural cartilage [29]. It facilitates the regeneration of mature cartilage. ...

... The results show that PDA increases the mechanical strength of the BC membrane, while the PLGAcoated BC membrane improves cell proliferation and collagen accumulation in vivo. Lim et al. have successfully prepared new hydroxyapatite-encapsulated BC scaffolds for bone-tissue engineering (Ahn et al., 2015). New bone formation was observed to be significantly increased by hydroxyapatite-coated BC scaffolds in a rat calvarian defect model compared with those from BC scaffolds. ...