Cellulose Color Effects Copied from Nature with Natural Materials: Solid Opalescent Films Originated from Cellulose Derivatives

2001 ◽  
pp. 61-70
Author(s):  
Georg Maxein ◽  
Manfred Müller ◽  
Rudolf Zentel
Keyword(s):  
Cellulose Derivatives ◽  
Natural Materials

scholarly journals Potensi Nanoselulosa untuk Agen Slow Release Bahan Alam: Review

2020 ◽  
Vol 2 (2) ◽  
pp. 56-60
Author(s):  
Salsabila Aqila Putri ◽  
Ratih Febrianti ◽  
Sunardi Sunardi
Keyword(s):  
Mechanical Properties ◽  
Slow Release ◽  
Cellulose Derivatives ◽  
Functional Material ◽  
Release Agent ◽  
Natural Materials ◽  
Production Methods ◽  
Material Sources ◽  
Nano Cellulose ◽  
Nano Size

Cellulose is the most abundant polymer on earth consisting of ?-l, 4 glycoside rings bound to ?-D-glucose. Cellulose can be obtained from various wood and non-wood sources. Nanocellulose is one of the cellulose derivatives that have the potential to be developed as a carrier agent for natural materials to increase their bioactivity and bioavailability. Nanocellulose, which is cellulose with a nano-size (1-100 nanometer), has been proved as one of the functional material sources that have superior properties due to its attractive and excellent characteristics such as high aspect ratio, better mechanical properties, biocompatibility renewable, and abundance. This paper discusses the sources, production methods, and applications of nano cellulose as a slow-release agent for various natural materials to an applications of biomedical, cosmetic, and biotechnology.

Color Space Transformation using Neural Networks

2019 ◽  
Vol 2019 (1) ◽  
pp. 153-158
Author(s):  
Lindsay MacDonald
Keyword(s):  
Neural Network ◽  
Neural Networks ◽  
Color Space ◽  
Reflectance Spectra ◽  
Network Architectures ◽  
Color Spaces ◽  
Natural Materials ◽  
Space Transformation ◽  
Color Space Transformation

We investigated how well a multilayer neural network could implement the mapping between two trichromatic color spaces, specifically from camera R,G,B to tristimulus X,Y,Z. For training the network, a set of 800,000 synthetic reflectance spectra was generated. For testing the network, a set of 8,714 real reflectance spectra was collated from instrumental measurements on textiles, paints and natural materials. Various network architectures were tested, with both linear and sigmoidal activations. Results show that over 85% of all test samples had color errors of less than 1.0 ΔE2000 units, much more accurate than could be achieved by regression.

Ultra-thin layers of phosphorylated cellulose derivatives on metal surfaces

2002 ◽  
Vol 177 (1) ◽  
pp. 97-110 ◽  
Author(s):  
Evelin Jaehne ◽  
Thomas Kowalik ◽  
Hans-Juergen P. Adler ◽  
Andreas Plagge ◽  
Martin Stratmann
Keyword(s):  
Metal Surfaces ◽  
Thin Layers ◽  
Cellulose Derivatives

Technological capabilities of vibration fi nishing of parts by granular organic media from natural materials

2020 ◽  
pp. 407-410
Author(s):  
E.Yu. Krupenya ◽  
A.P. Shishkina
Keyword(s):  
Experimental Verification ◽  
Organic Media ◽  
Technological Capabilities ◽  
Natural Materials ◽  
Machine Parts ◽  
Parts Manufacturing

The essence and scope of granular organic media from natural materials in the technology for machine parts manufacturing are shown. Vibration finishing model of the parts surface by granules of stone organic media and the results of its experimental verification, features of drying and vibration wiping of parts by organic media are presented.

Analytical Study of Irradiated Cellulose Derivatives

2013 ◽  
Vol 9 (3) ◽  
pp. 252-260
Author(s):  
M. Stawny ◽  
K. Dettlaff ◽  
B. Marciniec ◽  
E. Jaroszkiewicz ◽  
B. Czajka ◽  
...  
Keyword(s):  
Analytical Study ◽  
Cellulose Derivatives

Purification of Glycerol Kinase by "Dye-Ligand" Chromatography and Hydrophobic Interaction Chromatography on Bead-Cellulose Derivatives

1993 ◽  
Vol 58 (2) ◽  
pp. 445-451 ◽  
Author(s):  
Vladimír Žúbor ◽  
Albert Breier ◽  
Marta Horváthová ◽  
Dagmar Hagarová ◽  
Peter Gemeiner ◽  
...  
Keyword(s):  
Hydrophobic Interaction ◽  
Specific Activity ◽  
Hydrophobic Interaction Chromatography ◽  
Glycerol Kinase ◽  
Enzymic Activity ◽  
Cellulose Derivatives ◽  
Long Term Storage ◽  
Bead Cellulose ◽  
Term Storage

The crude extract of cytosole enzymes was obtained from homogenized cells of Saccharomyces cerevisiae by partition. The enzyme was then isolated from the lower aqueous phase displaying higher glycerol kinase activity by dye-ligand chromatography on Cibacron Blue (CB) or Remazol Brilliant Blue R (RB)-derivatized bead-cellulose, ATP being the eluent. The specific activity of glycerol kinase rised more than 10 and 7-times after affinity dye-ligand chromatography and hydrophobic interaction chromatography, respectively. Glycerol kinase obtained by the latter method was purified by CB-bead cellulose. The final preparation maintained its enzymic activity without noticeable losses during a long-term storage at 4 °C in dark.

scholarly journals Alginate-based microparticles coated with HPMCP/AS cellulose-derivatives enable the Ctx(Ile21)-Ha antimicrobial peptide application as a feed additive

2021 ◽  
Vol 183 ◽  
pp. 1236-1247
Author(s):  
Cesar Augusto Roque-Borda ◽  
Hanyeny Raiely Leite Silva ◽  
Edson Crusca Junior ◽  
Jéssica Aparecida Serafim ◽  
Andréia Bagliotti Meneguin ◽  
...  
Keyword(s):  
Antimicrobial Peptide ◽  
Feed Additive ◽  
Cellulose Derivatives
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