English Journal

Coloring-decoloring behavior of amphiphilic fluoroalkyl end-capped N-(1,1-dimethyl-3-oxobutyl)acrylamide--acryloylmorpholine cooligomer/fluorescein nanocomposites in protic and aprotic solvents.

Sawada H, Izumi S, Sasazawa K, Yoshida M.Author information Department of Frontier Materials Chemistry, Graduate School of Science and Technology, Hirosaki University, Hirosaki 036-8561, Japan. hideosaw@cc.hirosaki-u.ac.jpAbstractAmphiphilic fluoroalkyl end-capped N-(1,1-dimethyl-3-oxobutyl)acrylamide-acryloylmorpholine cooligomer/fluorescein nanocomposites afforded brilliant yellow-colored solutions in not only protic solvents such as methanol and ethanol but also protic-like solvents such as dichloromethane and 1,2-dichloroethane, respectively. However, the corresponding non-fluorinated cooligomer/fluorescein composites and parent fluorescein gave the colorless solutions under similar conditions. On the other hand, unexpectedly, such brilliant yellow-colored solutions provided by these fluorinated nanocomposites completely disappeared in aprotic solvents such as N,N-dimethylformamide, dimethyl sulfoxide, and tetrahydrofuran. Thus, these fluorinated fluorescein nanocomposites can exhibit a coloring-decoloring behavior through solvatochromic response.
Journal of colloid and interface science.J Colloid Interface Sci.2012 Jul 1;377(1):76-80. doi: 10.1016/j.jcis.2012.03.017. Epub 2012 Mar 23.
Amphiphilic fluoroalkyl end-capped N-(1,1-dimethyl-3-oxobutyl)acrylamide-acryloylmorpholine cooligomer/fluorescein nanocomposites afforded brilliant yellow-colored solutions in not only protic solvents such as methanol and ethanol but also protic-like solvents such as dichloromethane and 1,2-dichlor
PMID 22484165

[Preparation procedures of anti-complementary polysaccharides from Houttuynia cordata].

Zhang J, Lu Y, Chen D.Author information Department of Pharmacognosy, School of Pharmacy, Fudan University, Shanghai 201203, China.AbstractOBJECTIVE: To establish and optimize the preparation procedures of the anti-complementary polysaccharides from Houttuynia cordata.
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica.Zhongguo Zhong Yao Za Zhi.2012 Jul;37(14):2071-5.
OBJECTIVE: To establish and optimize the preparation procedures of the anti-complementary polysaccharides from Houttuynia cordata.METHOD: Based on the yield and anti-complementary activity in vitro, the conditions of extraction and alcohol precipitating process were optimized by orthogonal tests. Th
PMID 23126186

Decoloring hemoglobin as a feedstock for second-generation bioplastics.

Low A, Lay M, Verbeek J, Swan J.Author information School of Engineering, Waikato University, Hamilton, New Zealand. awk1@waikato.ac.nzAbstractThe color of red blood cell concentrate (RBCC) limits its application in human food, but there is potential to use it for second-generation bioplastics. Several methods have been developed to remove color from RBCC, but they are expensive or may produce difficult-to-remove toxic residues. Hydrogen peroxide treatment is a cheaper alternative. The effects of RBCC concentration, pH, and reaction temperature were the most important factors influencing the decolorizing process. They were investigated with the aim of developing a method that could be scaled to commercial level for producing a bioplastic feedstock. Initial trials showed pH was an important factor for decolorization and foaming. At pH 15 there was a 96% reduction in solution color and 8.4% solids were lost due to foaming. There was a 76% reduction in solution color at pH 2 and only 2.6% solids were lost due to foaming. The optimal reaction conditions were to centrifuge 9% w/w, pH 2 aqueous RBCC solution to remove aggregates. The solution was reacted at 30°C with 7.5 g of 30% (w/w) hydrogen peroxide. These conditions achieved a 93% reduction in solution color after 3 hr and the molecular weight of the decolored protein was not significantly reduced.
Preparative biochemistry & biotechnology.Prep Biochem Biotechnol.2012;42(1):29-43. doi: 10.1080/10826068.2011.563401.
The color of red blood cell concentrate (RBCC) limits its application in human food, but there is potential to use it for second-generation bioplastics. Several methods have been developed to remove color from RBCC, but they are expensive or may produce difficult-to-remove toxic residues. Hydrogen p
PMID 22239706

Japanese Journal

色情報埋め込みによるカラー復元可能なモノクロ変換

松岡丈平,田中豪,末竹規哲 [他]
ファジィシステムシンポジウム講演論文集 27, 731-734, 2011-09-12
NAID 40019537723

色情報埋め込みによるカラー復元可能なモノクロ変換

松岡丈平,田中豪,末竹規哲,内野英治
日本知能情報ファジィ学会ファジィシステムシンポジウム講演論文集 27(0), 162-162, 2011
通常，RGB 成分からなるカラー画像をモノクロ画像に変換するには，各画素の明度成分をモノクロ画像の画素値とする．この変換は不可逆であり，この変換によって得られたモノクロ画像から原画像の色情報を復元することは不可能である．近年，カラー画像の色情報をモノクロ画像内に埋め込んでおくことで，カラー画像復元可能なモノクロ変換に関する研究が行われている．しかし，従来手法はアルゴリズムの性質上，色数に制限があり …
NAID 130004591756