Oxidizing and Nano-dispersing the Natural Silk Fibers
Zheng, Ke1,2; Hu, Yanlei1; Zhang, Wenwen1,2; Yu, Juan1; Ling, Shengjie2; Fan, Yimin1

Natural Bombyx mori silk (BS) and Antheraea pernyi silk (AS) were oxidized in sodium hypochlorite (NaClO) solutions. Thereafter, individual silk nanofibers (SNs) were achieved after sonicating the oxidized silk slurries, where the diameters of the resultant SNs were similar to 100nm and several micrometers in length. Thin membranes were formed by casting the SNs, which had optically transparent (above 75% transmission), mechanically robust (similar to 4.5GPa of Young's modulus), and enhanced wetting properties. An interesting aggregating-dispersing (re-dispersing) process by using these SNs was strongly regulated by adjusting the pH values. Consequently, the negatively charged SNs could be concentrated up to similar to 20wt% (100 times that of the initial dispersion) and offered extraordinary benefits for storage, transportation, and engineering applications.

KeywordSilk Oxidation Negatively charged nanofibers Aggregating-redispersing
Indexed BySCI ; EI
Funding ProjectFoundation for Innovation Training of Graduate Student of Jiangsu Province[KYZZ15-0250]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000477587900001
EI Accession Number20193007240785
EI KeywordsChlorine compounds ; Nanofibers ; Oxidation ; Sodium compounds
EI Classification NumberNanotechnology:761 ; Chemical Reactions:802.2 ; Natural Fibers:819.1 ; Solid State Physics:933
Original Document TypeArticle
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorLing, Shengjie; Fan, Yimin
Affiliation1.Nanjing Forestry Univ, Jiangsu Key Lab Biomass Based Green Fuel & Chem, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat F, Minist Educ,Coll Chem Engn,Key Lab Forestry Genet, Nanjing 210037, Jiangsu, Peoples R China
2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
First Author AffilicationSchool of Physical Science and Technology
Corresponding Author AffilicationSchool of Physical Science and Technology
Recommended Citation
GB/T 7714
Zheng, Ke,Hu, Yanlei,Zhang, Wenwen,et al. Oxidizing and Nano-dispersing the Natural Silk Fibers[J]. NANOSCALE RESEARCH LETTERS,2019,14(1).
APA Zheng, Ke,Hu, Yanlei,Zhang, Wenwen,Yu, Juan,Ling, Shengjie,&Fan, Yimin.(2019).Oxidizing and Nano-dispersing the Natural Silk Fibers.NANOSCALE RESEARCH LETTERS,14(1).
MLA Zheng, Ke,et al."Oxidizing and Nano-dispersing the Natural Silk Fibers".NANOSCALE RESEARCH LETTERS 14.1(2019).
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