Kapok

Kapok is a cotton-like fluff. Good material for upholstery due to the light and airy fibers. The natural wax coat of the fiber makes them water resistant.

[1 to 3 Paragraphs: Overview (material / process, properties, inspiring uses, recent breakthroughs etc.)]

Uses

  • [Historical and contemporary]

Potential Uses

  • [Research, Exploratory/student projects, Ideas…]

Processes

  • [Overview; need not be detailed.]

More Information

  • [Links to the most relevant projects, organisations, research, suppliers etc.]
  • [e.g. ExampleOrg – Organisation which researches this material]

Coir fiber

The coconut palm is a tropical tree from the palm family, where the coconut grows. Coir, the coconut fibers are tiny curled tubes filled with air, this makes them light, heat-retaining and elastic.

Coir is the fibrous material found between the hard, internal shell and the outer coat of a coconut. It is found in India, Sri Lanka and Southeast Asia . Fully ripe coir is brown, but coir can also be harvested unripe, when it is still white or light brown. Only 15% of the husk fibers that are harvested in India are actually recovered for use.

Quick properties

  • longest life of all natural fibers, very durable
  • mostly inflammable
  • salt water resistant
  • highly resistant to abrasion
  • strong and nearly impervious to the weather
  • insensitive to fungal and bacterial infestation and prevents dust mites, bed bugs, etc. due to moisture resistance
  • brown coir is Strong and highly resistant to abrasion
  • light brown and white coir is softer, and less strong than brown coir

Quick Fiber Facts

  • fibers range in leghth: 4-12 in (10-30 cm)
  • fibers that are shorter than 8in (20cm) are called, mattress fiber
  • fibers that are longer than that are called bristle fibers
  • a 10-oz (300-g) coconut husk yields about 3 oz (80 g) of fiber, one-third of which is bristle fiber

Uses

  • used for floormats, doormats, brushes and mattresses, agricultural twine, and geotextiles
  • brown coir is used in upholstery padding, sacking and horticulture
  • white coir is used for making finer brushes, string, rope and fishing nets

Potential Uses

Processes

  • separate the fibrous layer of the fruit from the hard shell and let it dry.
  • look up how to make process coir at madehow

 

More Information

 

 

 

 

 

 

 

Bioluminescence

Bioluminescent bacteria are being explored as a potential source of non-electrical lighting.

Bioluminescence is light emission by living organisms, which include bacteria, glow-worms, fireflies, and 80%+ of marine organisms.

Bioluminescent bacteria are being explored as a source of non-electrical lighting. Bioluminescence is a property of certain bacteria expressed most commonly in bacteria inhabiting sea creatures although freshwater and terrestrial examples exist. Designers are investigating the possibilities for their use in lighting products.

 Uses

Only speculative / demonstration projects known of so far.

Potential Uses

Designers have been trialing lighting products using biolumiscent bacteria however challenges persist of low luminosity and the design of bacteria friendly environments. Suggested potential uses are for low level lighting such as road strip lighting and parking lots or where space constraints are less of an issue such as street lighting. There may be a range of domestic / commercial / external uses where low level lighting is needed which is natural / sustainable, has relaxing and soothing properties and may reduce light pollution.

Processes

There have been several examples of lighting products using different bacteria, each with their unique food source and habitat. For instance, Phillips designed a microbial home in which they exhibited bacterial lights fed by methane from human fecal and kitchen waste.

Another example is a pendulum light containing bacteria found on octopus tentacles which lights up when fed with oxygen and in motion. The light was designed using weights to create the pendulum effect when swung, lasting approximately 20 minutes. The lights contained synthetic sea water for the bacteria to live in.

More Information

  • https://www.glowee.eu/ – French biotech company engineering micro-organisms to make them more efficient in terms of light production (intensity, stability, capacity).
  • “Bioluminescent bacteria”. https://en.wikipedia.org/wiki/Bioluminescent_bacteria. Retrieved 28 June, 2017.
  •  “Philips biolight concept taps bioluminescence for home use”. New Atlas. http://newatlas.com/philips-bio-light-concept-taps-bioluminescence-for-home-use/20632/. Retrieved 28 June, 2017.
  • “A light whose light comes from bioluminescent bacteria” (January 13, 2015). Wired. https://www.wired.com/2015/01/lamp-whose-light-comes-bioluminescent-bacteria/. Retrieved 28 June, 2017.

Bacterial Cellulose (Kombucha/Nata de coco)

Bacterial cellulose grows on the surface of Kombucha / Nata de coco, and has been used to create leather-like fabrics. It is highly moisture absorbing.

Kombucha itself is a healthy fermented tea that is created by a symbiotic colony of bacteria and yeast (scoby). It is made by adding either the scoby or already fermented Kombucha Tea into a mixture of sweet black or green tea. The scoby digests the sugar and other substances in the tea and ferments it. The scoby is a gelatinous, cellulose-based biofilm, when drying it a material occurs reminiscent of fabric, leather or paper.

  • Kombucha cellulose can be stitched, molded, glued, oiled, dyed, painted, waterproofed and laser-etched
  • It can be both very thin and thick depending on the duration of growth
  • It can be also joined by overlapping pieces of the material, which than knit themselves together
  • moisture from the body and air softens the material and makes it less durable
  • cold conditions make it brittle
  • It dissolve in water

Uses

  • Kombucha ‘fabric’ has been trialled in many fashion items, like clothing, shoes, handbags etc. London based Suzanne Lee from Biocouture made the idea public an a TedTalk.
  • Queensland University of Technology and the State Library of Queensland have been using Kombucha Fabric and experimenting with anything from onions to red wine to coffee to change the nature of the end-product.
  • Young-A Lee from the Iowa State University and her research team have designed vest and shoe prototypes from the cellulosic fiber grown in their lab.
  • Malai, a coconut farming facility in South India, creates a leather-like material made using the bacteria naturally derived from coconut water. The bacteria is placed in a humid environment, the mixture ferments and a layer of cellulose grows, multiplying over a period of 12 to 21 days into a jelly-like substance. The longer it is left, the thicker the material becomes, eventually coming to have a leather-like quality.

Potential Uses

  • ScobyTec, a German Start-Up is exploring Kombucha Fabric as a sustainable symbiotic and intelligent future material for smart products and wearable technology.
  • Growduce Guillian Graves (designer) and Aakriti Jain (bioengineer) envisage an efficient, sustainable and entirely local alternative to recycling domestic organic waste, in a counter-top bio composter / 3D printer ‘biomanufacturing’ device. In a ceramic lower vessel ‘acetobacter’ bacteria living in symbiosis with yeasts digest food waste through a fermentation and metabolism process, transforming into a rubbery cellulose membrane. This grows at the compost’s surface in removable moulds to sculpt everyday objects such a healing bandage, beauty mask, gloves and other clothes, new kinds of food or even sticks to heat the house.
  • RCA Graduate Jessica Gregory imagines ‘Bihome’ is “a series of objects which allow users to grow and process their own products at home from biomaterials.” In stacked bacterial cellulose growth beds sugars from food waste become nutrition for acetobacter xylinum bacteria. Cellulose forms on top of the liquid as a leather-like finished material.

Processes

More Information

Bacterial Synthesis of Nano-Metals

Bacterial production of nano-metals is a growing field of research because of its advantages over current chemical or physical manufacture processes.

Bacterial production of nano-metals is a growing field of research because of its advantages over current chemical or physical manufacture processes. Bacterial production offers an alternative process in a more benign environment, it does not produce toxic waste and has lower energy requirements. Nonetheless, the process is not yet competitive because production time is longer or produced nanometals are not stable.

Uses

There are many potential uses of nanometals in medicine, optics, electronics and heavy metal waste clean up.

For instance, there are many bacteria that can produce nanosilver, a wonder nanometal for its antibacterial and antifungal properties (touted as an alternative to antibiotics) which has been used as a coating in healthcare, cosmetics, female hygiene products, air-conditioning systems, washing machines, clothing, toys etc.

Other nanomaterials of interest are:

  • gold nanoparticles
  • magnetic nanoparticles
  • alloy nanoparticles
  • palladium nanoparticles
  • copper nanoparticles

Potential Uses

  • Nano materials grown with bacteria onto surfaces as coatings, for example to improve durability, give anti-bacterial properties, or to give structural coloration (like certain butterfly wing colours) rather than using dyes.

Processes

Different bacteria synthesis nanometals in different ways. In nature, this process was developed for bacteria to survive in high metal toxicity environment.  As explained by this academic paper , “nanoparticles are biosynthesized when the microorganisms grab target ions from their environment and then turn the metal ions into the element metal through enzymes generated by the cell activities. It can be classified into intracellular and extracellular synthesis according to the location where nanoparticles are formed.”

More Information

  •  https://www.hindawi.com/journals/jnm/2011/270974/
  •  https://www.omicsonline.org/open-access/biological-synthesis-of-metallic-nanoparticles-by-bacteria-fungi-and-plants-2157-7439.1000233.php?aid=31363
  •  http://www.nanosilver.com.my/nano-tech-facts/what-is-nano-silver/
  •  “Engineering nanosilver as an antibacterial, biosensor and bioimaging material”. (October, 2011)
  • http://www.sciencedirect.com/science/article/pii/S2211339811000025

Clay based paint

Clay based paint is a natural, breathable and zero volatile organic emitting paint. It is perfect for use in interior rooms and certain versions are suitable for humid areas such as kitchens and bathrooms.

Clay based paint is a natural, breathable and zero volatile organic emitting paint. It is perfect for use in interior rooms and certain versions are suitable for humid areas such as kitchens and bathrooms.

Uses

Known use is for painting of interior rooms. Manufacturers state that clay paint can be applied on clay plaster, all other solid plasters and on drywalls, fibrous plasterboards, concrete, plastic-free wallpapers, fleece wallpaper. Unsuitable surfaces are e.g. old glue-bound distemper coatings, lime paints, oil paint coatings, latex- and plastic coatings, metal, surfaces with residues of glue and all even, non-absorbent surfaces as well as permanently humid surfaces.

Potential Uses

None as yet identified. Your ideas welcome!

Processes

Main constituents include:

  • clay
  • pigment (for white titanium dioxide or marble flour, other colours can be created from natural pigments)
  • adhesive: natural adhesives include milk or vegetable casein
  • water

There are various homemade DIY can be made with just flour, water, clay and a colour pigment.

The paint can be purchased in powder form therefore reducing its weight for transport purposes and facilitating storage. The powder is mixed with water using an electric drill with paint stirrer. See manufacturer’s data sheets for instructions.

More Information

  • http://www.kreidezeit.de/
  • http://inglepingle.co.uk/2013/10/making-clay-paint/
  • http://www.theyearofmud.com/2016/01/04/make-your-own-clay-paint-recipe/
  • Featured image – https://cfileonline.org/wp-content/uploads/2016/02/1a-clay-to-paint-contemporary-ceramic-art.jpg

Bentonite Clay Toothpaste

Naturally created fine bentonite clay has a fairly ideal abrasion hardness for cleaning teeth without damaging enamel.

[1 to 3 Paragraphs: Overview (material / process, properties, inspiring uses, recent breakthroughs etc.)]

Uses

  • [Historical and contemporary]

Potential Uses

  • [Research, Exploratory/student projects, Ideas…]

Processes

  • [Overview; need not be detailed.]

More Information

  • [Links to the most relevant projects, organisations, research, suppliers etc.]
  • [e.g. ExampleOrg – Organisation which researches this material]

 

 

 

Woven-Strand Bamboo (WSB)

A composite of carbonized bamboo strands compressed with water-based adhesive has three times the density of natural bamboo, resists moisture absorption, swelling, and decay from bacteria and fungi.

Thin slices of bamboo stalk are carbonized, weaved and compressed to produce a composite which has three times the density of natural bamboo, resists moisture absorption, swelling, and decay from bacteria and fungi. The carbonisation processes is effective at eliminating all natural sugars in the bamboo material and therefore becoming unattractive for fungi and bacteria.

Uses

A common use is for flooring providing a more resistant and faster growing alternative to hardwood flooring.

Potential Uses

WSB is also being explored as a rebar (reinforced concrete) alternative to replace steel.  One such bamboo known as Dirk Hebel Bamboo is being tested by researchers (led by Dirk Hebel) at the Future Cities Laboratory in Singapore. The results have been positive however research continues on an alternative WSB manufacturing process that reduces potential damage to bamboo fibres caused by carbonisation.

Testing the strength of bamboo-reinforced concrete.
Dirk Hebel Bamboo strips are tested for strength and resistance to tensile forces.
This use would be particularly exciting given the environmental harm from high carbon intensity steel manufacture.

Processes

Engineering bamboo involves several processes designed to improve strength and longevity. In general the following steps are taken: 
1. Slice the bamboo into thin strips
2. Boil in water to cleanse
3. Carbonize bamboo through streaming or high temperature heating
4. Dry
5. Weave bamboo strips
6. Apply protective finish 

More Information

  • https://www.ambientbp.com/how-bamboo-flooring-is-manufactured.php
  • http://www.architectmagazine.com/technology/two-natural-rebar-alternatives-for-concrete_o

Palm Trunk Fibres

Certain palm trees have thick fibrous bark that can easily be peeled off and used directly or with minimal processing as a fabric.

Certain palm trees have thick fibrous bark that can easily be peeled off and used directly or with minimal processing as a fabric.

Uses

Traditionally used for raincoats or other hardy outdoor clothing and accessories. The palm bark raincoat was definitely used in China. In South America, there are examples of bark used to make tops and dresses. [2] Whilst in Hawai, the palm sheath basket or bags are a traditional craft. [3] The bark from the Piassava palm family has also been used for roofing in tropical areas in South America and Africa.

Contemporary uses including building facades [1], accessories and arts and crafts with a modern style. [3]

Process

No details – incomplete

References

[1] “Fernando Humberto Campana Brothers Palm Fibre House” https://www.dezeen.com/2016/07/19/fernando-humberto-campana-brothers-palm-fibre-house-sao-paulo-brazil-hairy-texture/. Retrieved 28 June, 2017.

[2] “Guahibo indians”. http://www.indian-cultures.com/cultures/guahibo-indians/. Retrieved 28 June, 2017.

[3] Pinterest. https://www.pinterest.com/pin/281263939203776216/. Retrieved 28 June, 2017.

Soapberry (Soapnut)

These contain saponins which are a natural surfactant, and have been used for washing the body, laundry and dishes where they grow in Asia and the Americas.

Soapberries (also known as soapnuts) are the fruit of several species of trees from the Sapindusbgenus which can be used as a soap to wash the body, hair and clothes. Use of the soapberries was common in South and East Asia until just 20 to 30 years ago. It is also claimed that American Indians used these for washing.

Uses

Clothes washing is the most common use; soapnuts can even be placed in a modern washing machine. Body and hair washing is less common because the fruit foam stings eyes and should not be ingested. Other uses are dishwasher liquid or household detergent.

The soap can allegedly help treat skin conditions such as psoriasis and eczema.

The soapberry could also be used as a mosquito repellent. Scientific research[1] has shown that the “kernel extracts of soapberry disrupt the activity of enzymes of larvae and pupae and inhibit the growth of Aedes aegypti, a mosquito that spreads viral diseases such as yellow fever, dengue and chikungunya.”

 

Process

The soapberries contain saponin which acts as a natural surfactant.

You can grow the tree from seed. There are lots of resources online [2] about how to grow the tree and the different species that are adapted to different climates. They can withstand draught, poor soil and come with no pests, though it is often seen harmless red shoulder bugs crawling around. Most sources say it takes about 10 years to bear fruit.

Once the tree has born fruit, these are collected and sun dried.

For laundry: add about 5 whole or broken fruit shells to a small cotton drawstring bag and add to the laundry. The bag of soapberries can simply be added in the washing machine or bowl for hand washing.

For hair/body washing, create a soapy mixture using the soapberries mixed with hot water and optional additives to add odour or for better preservation. Detailed recipes can be found online. [3] [4] Beware that the soapy foam stings if it gets into your eyes.

References

[1] http://www.downtoearth.org.in/news/soapnut-a-mosquito-repellent-33188

[2] https://www.gardeningknowhow.com/ornamental/trees/soapberry/soapberry-tree-growing.htm

[3] https://wellnessmama.com/8441/soap-nuts-shampoo/

[4] https://www.nourishedlife.com.au/article/216288/all-ways-you-can-use-soapberries.html