PMID- 24815401 OWN - NLM STAT- MEDLINE DCOM- 20151016 LR - 20140512 IS - 1879-1344 (Electronic) IS - 0144-8617 (Linking) VI - 109 DP - 2014 Aug 30 TI - Side selective surface modification of chitin nanofibers on anionically modified cotton fabrics. PG - 56-63 LID - S0144-8617(14)00267-7 [pii] LID - 10.1016/j.carbpol.2014.03.035 [doi] AB - Chitin nanofibers have been prepared from crab shell as a chitin source using ultrasound assisted fibrillation. Atomic force microscopy (AFM) study showed that the prepared nanofibers were having diameters and lengths primarily in the range of 2-20 nm and 0.3-4 mum respectively. These nanofibers were selectively grafted on one side of a 100% cotton fabric using a special apparatus. Prior to the grafting, cotton fabrics were modified with partial carboxymethylation to encourage cotton fiber nanofiber interactions. The surface modification was confirmed by Fourier transform infrared spectroscopy (FT-IR) peaks at 1,594 cm(-1) and 1,735 cm(-1) due to the presence of carboxylic acid functionality in modified cotton fabrics. Scanning electron microscope (SEM) study of the nanofiber grafted cotton fabrics showed that nanofibers were adhered to the cotton fabrics. Elemental analysis confirmed that side selective grafting of nanofiber has taken place due to the peak at 0.394 keV which attributes to the presence of nitrogen element in chitin nanofibers. This peak was absent in the other side of the fabric which was not coated with chitin nanofibers. Amount of adhered nanofibers was seen to increase with the increase of nanofiber concentration used in grafting as confirmed by Kjeldahl analysis. A possible mechanism of cotton fiber-nanofiber interactions is introduced. CI - Copyright (c) 2014 Elsevier Ltd. All rights reserved. FAU - Wijesena, Ruchira N AU - Wijesena RN AD - Sri Lanka Institute of Nanotechnology, Nanotechnology & Science Park, Mahenwatta, Pitipana, Homagama, Sri Lanka. Electronic address: ruchiraw@slintec.lk. FAU - Tissera, Nadeeka AU - Tissera N AD - Sri Lanka Institute of Nanotechnology, Nanotechnology & Science Park, Mahenwatta, Pitipana, Homagama, Sri Lanka. FAU - Perera, Rangana AU - Perera R AD - Sri Lanka Institute of Nanotechnology, Nanotechnology & Science Park, Mahenwatta, Pitipana, Homagama, Sri Lanka. FAU - de Silva, K M Nalin AU - de Silva KM AD - Sri Lanka Institute of Nanotechnology, Nanotechnology & Science Park, Mahenwatta, Pitipana, Homagama, Sri Lanka. LA - eng PT - Journal Article DEP - 20140327 PL - England TA - Carbohydr Polym JT - Carbohydrate polymers JID - 8307156 RN - 0 (Anions) RN - 1398-61-4 (Chitin) SB - IM MH - Anions MH - Chitin/*chemistry/ultrastructure MH - *Cotton Fiber MH - Microscopy, Atomic Force MH - Nanofibers/*chemistry/ultrastructure MH - Powder Diffraction MH - Spectrometry, X-Ray Emission MH - Spectroscopy, Fourier Transform Infrared MH - Surface Properties MH - X-Ray Diffraction OTO - NOTNLM OT - Chitin nanofibers OT - Moisture management OT - Surface modification EDAT- 2014/05/13 06:00 MHDA- 2015/10/17 06:00 CRDT- 2014/05/13 06:00 PHST- 2014/01/01 00:00 [received] PHST- 2014/03/01 00:00 [revised] PHST- 2014/03/05 00:00 [accepted] PHST- 2014/05/13 06:00 [entrez] PHST- 2014/05/13 06:00 [pubmed] PHST- 2015/10/17 06:00 [medline] AID - S0144-8617(14)00267-7 [pii] AID - 10.1016/j.carbpol.2014.03.035 [doi] PST - ppublish SO - Carbohydr Polym. 2014 Aug 30;109:56-63. doi: 10.1016/j.carbpol.2014.03.035. Epub 2014 Mar 27.