{"product_id":"photonic-crystal-dialdehyde-cellulose-nanocrystals","title":"Photonic crystal Dialdehyde Cellulose Nanocrystals","description":"\u003cp\u003eProduct Name Name:Photonic crystal Dialdehyde Cellulose Nanocrystals Product Overview Photonic crystal structure color special cellulose nanocrystals are a natural nanomaterial with special optical properties. Cellulose nanocrystals are rigid short rod-like nanoparticles prepared from natural cellulose by physical cutting and peeling, enzymatic hydrolysis, chemical acid hydrolysis, etc. At the nanoscale, it can spontaneously organize itself to form a periodically regular spiral arrangement structure, which is similar to the structure of photonic crystals, and can specifically reflect, scatter and interfere with visible light, resulting in structural colors. Our company provides three structural colors, bluish, iridescent and golden yellow, for scientific research use. Product Features Environmentally friendly and renewable: Cellulose nanocrystals are derived from natural cellulose, and at the same time, they are also biodegradable, in line with the concept of environmental protection, and can be naturally decomposed after use, reducing the burden on the environment. Excellent optical performance: Able to form a periodically regular spiral arrangement structure through self-assembly, resulting in structural colors. This structural color covers the entire visible spectrum and can produce brilliant visual effects such as rainbow colors or metallic sheen. And compared with traditional pigment colors, its color is more vivid, long-lasting, and not easy to fade. Good biocompatibility: Cellulose nanocrystals are a natural polymer material that has good compatibility with living organisms and will not have obvious rejection reactions to living organisms, so they have high safety when applied in biomedicine, cosmetics and other fields. Strong adjustability: By adjusting the preparation conditions, such as changing the concentration of cellulose nanocrystals, the temperature and humidity of the assembly environment, and adding other functional substances, the self-assembly structure can be adjusted, thereby achieving precise control of the structural color. In addition, it can also be compounded with other materials to prepare composites with a variety of functions and adjustable properties. Good mechanical properties: cellulose nanocrystals themselves have a certain degree of rigidity and strength, and after proper treatment and assembly, the films or materials formed by them can have good mechanical properties. For example, by compounding with substances such as polyvinyl alcohol, composite films with good flexibility and mechanical strength can be prepared. High environmental stability: The structural color formed by self-assembly of cellulose nanocrystals has good thermal, mechanical and chemical stability, and its color is not easy to fade or fade in harsh environments such as strong ultraviolet light, high and low temperature, strong acid and alkali, etc., which can meet the needs of color applications in extreme environments. Application Fields Optical anti-counterfeiting: Because cellulose nanocrystalline structural colors have unique optical properties, such as angle dependence, circular dichroism, etc., they can be used to prepare optical anti-counterfeiting materials, such as anti-counterfeiting labels, anti-counterfeiting inks, etc., which increases the difficulty of counterfeiting. Intelligent display: By modifying cellulose nanocrystals or compounding them with other materials, stimulus-responsive photonic films can be prepared, and their structural color can change with changes in the external environment such as temperature, humidity, and solvents, and is expected to be used in the field of intelligent displays, such as electronic displays, sensors, etc. Coatings and decoration: Based on the characteristics of cellulose nanocrystals self-assembly to form structural colors, functional photonic coatings can be prepared and coated on the surface of textiles, wood, plastics and other substrates, which can form stable, long-lasting and biodegradable bright structural colors, which are used in formaldehyde-free environmental protection home, decoration and other fields. Optical properties and the principle of generating structural color Cellulose nanocrystals can be spontaneously assembled into chiral nematic liquid crystals, and the periodic chiral nematic structure of the thin film matches the wavelength of visible light, which can diffract light and reflect only left-handed circularly polarized light, thus presenting a structural color. This structural color is different from traditional pigment colors and has the advantages of chemical stability, environmental protection, and non-fading. Related Information Please e-mail for the detailed characterization data. E-mail:sales@xfnano.com\u003c\/p\u003e","brand":"xfnano","offers":[{"title":"100g D:5-10nm,L:100-400nm,4% 106116 \/ Store at room temperature in a dry, dark and sealed place \/ 365days","offer_id":57280525500794,"sku":"106116","price":40.63,"currency_code":"USD","in_stock":true},{"title":"100g D:5-10nm,L:100-400nm,4% 106118 \/ Store at room temperature in a dry, dark and sealed place \/ 365days","offer_id":57280525533562,"sku":"106118","price":40.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0907\/3606\/6938\/files\/1_27871cef-ce01-415a-9a0e-d29d5e516d17.png?v=1780024497","url":"https:\/\/chinanano.com\/fr\/products\/photonic-crystal-dialdehyde-cellulose-nanocrystals","provider":"xfnano","version":"1.0","type":"link"}