X-ray diffraction as a measurement tool for biodegradability of cellulose nanocrystals

Details

• Personal Author:
  Seehra MS ; Stefaniak, Aleksandr B.
• Description:
  Parameters of X-ray diffraction (XRD) patterns of cellulose micro-crystals (CMC) and cellulose nanocryslals (CNC) exposed to artificial lung fluid for up to seven days are used to determine their biodegradability. It is observed that on exposure to lungfiuid, both Segal crystallinity and crystallite size for CNC systematically decrease with increase in exposure time, whereas CMCs are largely unaffected. Other effects observed are decreases in the intensities of certain XRD spectra lines with exposure time for CNC. These observations establish XRD as a valuable tool for determining biodegradability a/cellulose CNG. [Description provided by NIOSH]
• Subjects:
  Cellulose Lung Occupational Health Respiratory System Safety
• Keywords:
  Author Keywords: Cellulose Cellulose-fibers Crystallinity Crystallite Diffiaction Exposure-levels Measurement Measurement-equipment Nanocrystals Nanotechnology
• ISBN:
  9781595102249
• Publisher:
  TAPPI Press
• Document Type:
  Text
• Genre:
  Book
• Place as Subject:
  Georgia ; OSHA Region 3 ; OSHA Region 4 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DRDS - Division of Respiratory Disease Studies
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  59-60
• NIOSHTIC Number:
  nn:20043114
• Citation:
  Production and applications of cellulose nanomaterials. Postek M, Moon RJ, Rudie AW, Bilodeau MA, eds. Peachtree Corners, GA: TAPPI Press, 2013 Jun; :59-60
• Editor(s):
  Postek MT; Moon RJ; Rudie AW; Bilodeau MA
• Federal Fiscal Year:
  2013
• Peer Reviewed:
  False
• Source Full Name:
  Production and applications of cellulose nanomaterials
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:61081c69ac33b46a5b9c34e835616de1d4cda9bb70878368369bb0fb9f27820827031aadc01d2a44e3da92a012c2d572ce0746f333637a1dc10e2743cbc53c6e
• Download URL:
  https://stacks.cdc.gov/view/cdc/195124/cdc_195124_DS1.pdf
• File Type:
  [PDF - 1.29 MB ]