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Synthesis of Bacterial Cellulose in Low-cost Culture Medium Using Hot Water Extracted Wood Sugars

20113-10 Bacterial Cellulose Yield

Figure: Bacterial yield in hot water wood extract after 28 days of cultivation at pH (first number) and temp (second number).

Cellulose is well known as one of the most abundant biodegradable materials in nature and has received considerable interest in both academic and industrial fields. Cellulose synthesized by bacteria is of particular interest over plant cellulose for some applications due to its unique structural and mechanical properties and high purity.

Some high value applications for bacterial cellulose include biomedical applications (scaffold for tissue engineering, wound dressing materials, artificial skin), and production of membranes for high tech applications, such as diaphragms for loudspeakers.

Problem: Bacterial cellulose is currently expensive to produce and purchase however, due to the expense of the media.

Solution: Use inexpensive hot water extracted wood sugars for bacterial cellulose production.

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25% stronger, 100% bio-based fiber board

2013-13 NFC board

This invention provides particle board or fiber board that is non-toxic, 25% stronger than currently available products and made completely from renewable materials.  This is accomplished by replacing commonly used formaldehyde based resins with a safe, renewable nanocellulose based binder.


  • Reduction of health problems and related expenses (up to $48m per year1) caused by formaldehyde exposure
  • Increased strength reduces material and transportation costs
  • Nanocellulose, a renewable resource, replaces binders generally synthesized from non-renewable resources

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Zeolite Composite Materials for Waste Odor Control

A composite material for environmental odor control is useful in controlling odors from waste, for example, as an alternative daily cover for landfills and in composting applications. The composite material includes a fiber web and a zeolite containing metals to promote absorption of odorous has.

US Patent 8,100,605

UMaine Reference: 2008-35

Inventors: Karl Bishop, Susan Mackay, Michael Bilodeau
License exculsively to Zeomatrix

Analyze Samples in the Lab or Field with this New Portable Fluorescence Spectrometer

PROBLEM: 1.) Important science topics are sometimes not addressed in high schools because spectroscopy instruments are too expensive to purchase and maintain  2.) Field technicians have to take water and soil samples to a lab for spectroscopy analysis, adding time and complication  3.) Valuable data is not available from remote sensors due to spectrometer power and durability limitations.

SOLUTION: A portable, durable florescence spectrometer that costs 50% less than comparable instruments in most applications due to its novel design and simple components.

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Environmentally Friendly Pollutant Remediation, Dye Decolorization

PROBLEM: Organic pollutants and dyes from textile and paper plants in industrial waste streams need remediation.

SOLUTION: Using the chemically enhanced Fenton system, dyes can be remediated quickly in an environmentally safe manner.

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New Composites Made from up to 60% Inexpensive, Raw Plant Material

PROBLEM: Composite manufacturers need ways to improve extruded thermoplastics using inexpensive, environmentally friendly ingredients and without slowing process time.

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A Stronger, Simpler Fuel Cell Membrane Electrode Assembly

Membrane technology first developed to create artificial muscles may soon be used to improve fuel cells. Pictured above is a fuel cell membrane manufactured using this new method. Resulting surface porosity (a) and a deeply diffused conductive area (light lines in b) increase surface area available for electricity production and create a stonger, simpler, long-lasting membrane.

PROBLEM: Manufacturers of low temperature fuel cells need solutions for improving the strength, durability and manufacturability of a key component, the membrane electrode assembly, or MEA.

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