Han, Won Bae Kang, Heeseok Heo, Se-Yeon Ryu, Yelynn Kim, Gyuil Ko, Gwan-Jin Shin, Jeong-Woong Jang, Tae-Min Han, Sungkeun Lim, Jun Hyeon Eom, Chan-Hwi Song, Young Min Hwang, Suk -Won 2024-04-04T04:32:22Z 2024-04-04T04:32:22Z 2024-04-04 2024-03 1385-8947 https://pubs.kist.re.kr/handle/201004/149582 Materials that inhibit bacteria and viruses, while ensuring thermal comfort and physical ease, can play a significant role in the realm of protective textiles and equipment for outdoor healthcare activities, particularly in the context of recent global pandemics. Here, we develop radiative cooling and antibacterial composites consisting of stretchable, biodegradable poly(lactide-co-epsilon-caprolactone) (PLCL) and magnesium oxide (MgO) particles via a scalable solution casting process. Precise control over the size and composition of the particles within the polymer matrix through theoretical and experimental analyses achieves sub-ambient daytime radiative cooling (Delta T, similar to 7 degrees C) under diverse weather conditions. Bactericidal MgO particles through surface treatments realize a remarkable reduction of bacterial cell viability by similar to 100 % in 8 h. The overall results suggest that materials with thermal and infection control capability as well as disposable characteristics have the potential to reduce plastic waste beyond the spread of infection. English Elsevier BV Stretchable and biodegradable composite films for disposable, antibacterial, radiative cooling system Article 10.1016/j.cej.2024.149388 1 Chemical Engineering Journal, v.483 Chemical Engineering Journal 483 N scie 001181570900001 2-s2.0-85184617963 Engineering, Environmental Engineering, Chemical Engineering Article TEMPERATURE Magnesium oxides Radiative cooling Antibacterial effect Biodegradability Polymer composites