Supplementary Material
Prevention of mold invasion by eco-friendly lignin/polycaprolactone nanofiber membranes for amelioration of public hygiene
Seongpil An,1,† Joo-Hyun Hong,2,† Kyo Yong Song,1 Min Wook Lee,3 Salem S. Al-Deyab,4 Jae-Jin Kim,2 Alexander L. Yarin,1,3,* and Sam S. Yoon1,*
1 School of Mechanical Engineering, Korea University, Seoul, 02841, Republic of Korea
2 Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
3 Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL, 60607-7022, USA
4 Petrochemical Research Chair, Chemistry Department, King Saud University, Riyadh, 11451, Saudi Arabia
†These authors contributed equally to this work.
*Corresponding authors: ,
Fig. S1 Fiber-size distributions of (a) the LPNM and (b) the PNM.
Fig. S2 SEM images (a) before and (b) after the water solubility tests of the two the types of membranes. The left and right columns correspond to LPNM and PNM, respectively. All scale bars are 3 μm.
Fig. S3 Photographs without-pine-sapwood specimens after two weeks of mold cultivation. The biodegradable (a) LPNM and (b) PNM and (c) the non-biodegradable PAN membranes.
Fig. S4 Optical microscope images of the specimens after the LPNM had been removed after four weeks of mold cultivation as a function of the deposition time: (a) tdep = 3 h, (b) tdep = 6 h, and (c) tdep = 9 h.
Table S1 Mechanical parameters for the LPNMs measured experimentally (σmax, εf) and evaluated using the Green equation (E, Y).
Trial # / σmax (MPa) / εf (%) / E (MPa) / Y (MPa)1 / 4.368 / 135.256 / 28.321 / 3.541
2 / 3.095 / 58.247 / 26.890 / -
3 / 3.772 / 102.500 / 26.648 / -
4 / 3.381 / 93.290 / 22.404 / 8.390
5 / 4.459 / 66.087 / 39.169 / -
6 / 2.943 / 47.048 / 23.858 / 7.068
7 / 3.829 / 83.171 / 21.228 / 15.392
8 / 4.584 / 91.671 / 33.725 / -
9 / 3.726 / 101.886 / 19.929 / 13.033
10 / 2.764 / 40.252 / 17.337 / 28.135
Average / 3.692 / 81.941 / 25.951 / 12.593
Table S2. Mechanical parameters for the PNMs measured experimentally (σmax, εf) and evaluated using the Green equation (E, Y).
Trial # / σmax (MPa) / εf (%) / E (MPa) / Y (MPa)1 / 10.028 / 116.33 / 21.938 / 5.616
2 / 8.027 / 111.423 / 19.177 / 4.333
3 / 3.568 / 115.669 / 15.399 / 1.660
4 / 4.780 / 96.919 / 18.734 / 2.173
5 / 5.211 / 114.751 / 9.883 / 3.947
6 / 4.181 / 100.256 / 13.538 / 2.799
7 / 4.557 / 121.001 / 17.714 / 2.258
8 / 10.214 / 107.673 / 18.836 / 8.364
9 / 8.655 / 93.416 / 17.334 / 7.527
10 / 5.082 / 77.673 / 16.861 / 8.382
Average / 6.430 / 105.511 / 16.941 / 6.809
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