Green chemistry method for hair strengthening and setting using visible light-mediated protein crosslinking. (20th August 2022)

• Record Type: Journal Article
• Authors: Kim, Seo Young; Kim, Jae Hak; Kang, Yeyoung; Yoo, Jae Won; Choi, Joonho; Lee, Hyun Jong
• Is Part Of: Journal of cleaner production. Volume 363(2022)
• Publication Date: 2022-08-20
• Subjects: Green chemistry -- Protein crosslinking -- Riboflavin phosphate -- Hair strengthening -- Permanent hair waving; BL Blue light -- CA Citric acid -- IPD Isopentyldiol -- PBS Phosphate-buffered saline -- RFP Riboflavin phosphate -- SLES Sodium laureth sulfate -- TGA Thioglycolic acid; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2022.132535
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: A clean and nontoxic one-step protein crosslinking reaction method induced by visible light was developed using eco-friendly chemicals, such as riboflavin phosphate (RFP), citric acid (CA), and polyols. In this study, oxygen radicals generated by blue light (BL)-irradiated RFP replace the conventional free thiol generatio step of the alkali condition. CA and polyol were used as crosslinkers and extenders, respectively, to enhance keratin crosslinking in hair. The new one-step crosslinking method was compared with the existing permanent hair waving treatment using thioglycolic acid (TGA). Compared to TGA treatment, the newly proposed crosslinking method induced minor damage to hair and keratin. In addition, the mechanical property changes were measured after crosslinking treatment on the hair. The tensile stress values and Young's moduli of the treated hair samples were approximately 1.3 and 2.2 times higher than untreated hair. The hair-setting effect was also confirmed by the changes in the radii of the hair fibers and the length of the hair tresses after crosslinking treatment. Therefore, we believe that the clean one-step crosslinking technology can be used to develop eco-friendly products for hair strengthening and setting. Highlights: Clean one-step crosslinking of keratin is effective in strengthening and setting hair. Keratin crosslinking is induced by exposure to blue light in the presence of RFP. Citric acid and polyols form extender acts as a linker for keratin crosslinking.