What is nano

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What is nano?
Scale of things meter stick Vision limit DOE
graphic wood
Hands on Examples/ demonstrations 1. Suspension
MCC vs. Nanocellulose 2. Pretty NC films 3.
Precipitation ionic bonds
What is the impact?
Small things have different properties Medicine,
Energy, Security, Recreation, Exploration,
Financial Exotic nano
Connection to Forest Products?
Trees are composed of nanomaterials or materials
that can be converted into nanomaterials Developin
g nanotechnology impact performance of current
forest products and reduce energy consumption
VT WOOD Research
Nanomaterials from trees used in composites or
food/medicine Nanomaterials put together like
woodbiomimetics/self-assembly Future materials
from VT WOOD
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Inside VT Wood Biomaterials and
Nanotechnologies

• Presented By Scott Renneckar
• Incorporating research from Drs. Glasser,
  Renneckar, and Roman

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• when we have some control of the arrangement of
  things on a molecular scale, we will get an
  enormously greater range of possible properties
  that substances have R. Feynman, Eng. Sci.
  (1960)

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R D Roadmaps
http//www.nanotechforest.org/
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Number of publications on nanoparticles and
nanocomposites
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Nanoparticles

• Small materials with big impact
• Change material properties at low loading levels

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Transformation of forest products processing
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Bio-based nanomaterials

• create bio-based materials from the bottom-up
  from a collection of unique biobased building
  blocks

cellulose
glucomannan
xylan
Fengel and Wegener 1989
Dong et al. 1998
Cellulose is the dominate component of all plant
biomass and the most abundant polymer on earth
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Many natural materials are quite complex and
highly structured

• Formation of the materials occurs in water
  systems (cells) at ambient temperature

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We are working at methods to copy nature (also
known as biomimicry)

• Creating organized materials by
  self-assembly

Vs.
Water only likes half of soap
Water likes sugar
Cup of water with sugar
Cup of water with soap
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Organizing materials based on attracting opposites

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• Targeted drug delivery carrier
• Complex controlled delivery

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Towards a lamella of cellulose crystals
Surface topology of a single bi-layer on glass
slide (flow through adsorption via syringe pump).

Height
Phase
2mm x 2mm z-axis 25nm
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50 bi-layer film removed from glass slide
cationic starch cellulose nanowhiskers
Renneckar et al., ACS Symp. Series. In
Cellulose Nanocomposites Processing,
Characterization and Properties, under review.
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