B*****n
发帖数: 654 | 1 Spectroscopic properties of decacyclene assembled in Langmuir Blodgett film
mixed with stearic acid
By Acharya, Somobrata; Parichha, Tapan Kr.; Talapatra, G. B.
From Molecular Crystals and Liquid Crystals Science and Technology, Section
C: Molecular Materials (2000), 12(1), 91-100. Language: English, Database:
CAPLUS
Langmuir Blodgett (LB) films of nonamphiphilic decacyclene were prepd. by
mixing with stearic acid. Surface pressure vs. area per mol. isotherms (π
- A) at different compns. are me... 阅读全帖 |
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B*****n
发帖数: 654 | 2 Spectroscopic properties of decacyclene assembled in Langmuir Blodgett film
mixed with stearic acid
By Acharya, Somobrata; Parichha, Tapan Kr.; Talapatra, G. B.
From Molecular Crystals and Liquid Crystals Science and Technology, Section
C: Molecular Materials (2000), 12(1), 91-100. Language: English, Database:
CAPLUS
Langmuir Blodgett (LB) films of nonamphiphilic decacyclene were prepd. by
mixing with stearic acid. Surface pressure vs. area per mol. isotherms (π
- A) at different compns. are me... 阅读全帖 |
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c**i
发帖数: 6973 | 3 Sarah Nassauer, Why Wood Pulp Makes Ice Cream Creamier. Wall Street Journal,
May 4, 2011.
http://online.wsj.com/article/SB1000142405
2748703834804576300991196803916.html
Note:
(a) colloid
http://en.wikipedia.org/wiki/Colloid
(A hydrocolloid is defined as a colloid system wherein the colloid particles
are dispersed in water)
Chemically, a typical hydrocolloid is emulsion, where an individual particle
with an oil core is separated nd stabilized--so that the oil droplets will
not rise to the top--b... 阅读全帖 |
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d*********1
发帖数: 647 | 4 你都试过什么牌子或主要成份的产品能说说吗？
Cerave一眼望去全是化学成份，宝宝揉脸吃手真是看都看不住啊！
Water (Purified), Glycerin, Ceteareth 20, Capric/Caprylic Stearic
Triglyceride, Behentrimonium Methylsulfate/Cetearyl Alcohol, Cetearyl
Alcohol, Ceramide 3, Ceramide 6 11, Ceramide 1, Hyaluronic Acid, Cholesterol
, Petrolatum, Dimethicone, Potassium Phosphate, Dipotassium Phosphate,
Sodium Lauroyl Lactylate, Disodium EDTA, Phenoxyethanol, Methylparaben,
Propylparaben, Phytosphingosine, Carbomer, Xanthan Gum
cetaphil, vanicream也一样啊 |
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d*********1
发帖数: 647 | 5 你都试过什么牌子或主要成份的产品能说说吗？
Cerave一眼望去全是化学成份，宝宝揉脸吃手真是看都看不住啊！
Water (Purified), Glycerin, Ceteareth 20, Capric/Caprylic Stearic
Triglyceride, Behentrimonium Methylsulfate/Cetearyl Alcohol, Cetearyl
Alcohol, Ceramide 3, Ceramide 6 11, Ceramide 1, Hyaluronic Acid, Cholesterol
, Petrolatum, Dimethicone, Potassium Phosphate, Dipotassium Phosphate,
Sodium Lauroyl Lactylate, Disodium EDTA, Phenoxyethanol, Methylparaben,
Propylparaben, Phytosphingosine, Carbomer, Xanthan Gum
cetaphil, vanicream也一样啊 |
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c****n
发帖数: 15245 | 6 1.Blue Lizard Australian Sunscreen Sensitive Sunscreen SPF 30 Plus
成分：Titanium Dioxide 5%, Zinc Oxide 10%., Beeswax, C12-15 alkyl benzoate,
caprylyl glycol, cetyl dimethicone, cetyl dimethicone copolyol,
chlorphenesin, disodium EDTA, ethyhexyl palmiatate, ethylhexyl stearate,
hexyl laurate, hydrogenated castor oil, methyl glucose dioleate, octododecyl
neopentanoate, PEG-7 hydrogenated castor oil, phenoxyethanol, polyglyceryl-
4, isostearate, propanediol, purified water, sorbitan oleate, stearic ... 阅读全帖 |
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l********n
发帖数: 396 | 7 Ingredients: Aqua, Glycerin, Stearic Acid, Cetearyl Alcohol, Caprylic/Capric
Triglyceride, Cetearyl Ethylhexanoate, Cetyl Acetate, Simmondsia chinensis,
Glyceryl Polymethacrylate, Dimethicone, Rosa centifolia (C02 extraction),
Santalum album, Malva arboreae, Solidago virgaurea, PPG-25-Laureth-25,
Ceteareth-20, Lavandula angustifolia, Sodium PCA, Triethanolamine, BHT,
Lactic Acid, Phenoxyethanol, Methyl isothiazolinone, Sorbic Acid.
皮肤比较敏感，不知道这里面有没有会导致皮肤过敏的成份 |
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w***d
发帖数: 65 | 8 完全不是物理防晒呀。。。
Cyclopentasiloxane, Water, Polyglyceryl-3, Polydimethylsiloxyethyl
Dimethicone, Corn Starch Modified, Alcohol, Aluminum Hydroxide Stearic Acid,
Sodium Chloride, PEG/PPG-18/18 Dimethicone, Phenoxyethanol, PEG/PPG 20/15
Dimethicone, Tocopheryl Acetate, Fragrance, Hydroxy-Propyltrimonium
Maltodextrin Crosspolymer, Disodium EDTA, Butylene Glycol, Glyercin,
Pentylene Glycol, Cucumis Melo (Melon) Fruit Extract, Biosaccharide Gum 4,
Thermus, Thermophillus Ferment, Lapsana Communis Flower/L... 阅读全帖 |
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q******r
发帖数: 6542 | 9 被迫专业精神了一下 from wiki：
The composition (by weight) of the most prevalent fatty acids in egg yolk is
typically as follows:
Unsaturated fatty acids:
Oleic acid 47 %
Linoleic acid 16 %
Palmitoleic acid 5 %
Linolenic acid 2 %
Saturated fatty acids:
Palmitic acid 23 %
Stearic acid 4 %
Myristic acid 1 % |
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h******y
发帖数: 351 | 10 What kind of cells, which fatty acids are you using? Please give more
details.
Here is what I used for hepatocyte.
Preparation of the fatty acid stocks
The free fatty acids are prepared by dissolving each individual free fatty
acid in 100% ethanol. Most are readily dissolved in ethanol, though some
require heating to achieve fully solubility.
A final concentration of 100 mM for each of the fatty acids as follows:
31 ul 1 M Palmitic Acid Solid, 1 g / 3.3 ml EtOH
... 阅读全帖 |
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d****i
发帖数: 2346 | 11 非常感谢！
我们用的是palmitic Acid和Stearic Acid两种，分别去treatmacrophage。据说是先用
乙醇溶解，然后再加入BSA，但是我不太明白你这个protocol。
1. 前面那个31uL、2.8uL。。。是什么的体积？
2. 2.8 ul 1 M Palmitoleic Acid Liquid, 1 ml(1g)+2.93ml EtOH
这里面 1 M Palmitoleic Acid是配好后的浓度？ 1 ml(1g)+2.93ml EtOH里面的1 ml(
1g)的1mL和1g分别是啥意思？
再次感谢！
follows: |
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h******y
发帖数: 351 | 12 这几种脂肪酸中，Palmitic Acid 和 Stearic Acid常温下是固体，计算摩尔浓度比较
容易。其他几种常温下是液体，但是大体上他们的密度和水的密度很相近，1ml近似1g
。这些脂肪酸都极易溶于乙醇。溶解Palmitic Acid需要略微加热（50C)。
The free fatty acids are toxic unless they are presented bound to purified,
fatty acid free, endotoxin-free serum albumin, which is used at a typical
concentration of 0.1–0.2%.
Take 31ul 1M palmitic acid, 2.8ul 1M Palmitoleic acid etc and bring the
final volume to 1000ul with 100% EtOH, you will get 0.1M FFA. Add 76ul of
the mixture to 1L culture medium and you w... 阅读全帖 |
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s********1
发帖数: 581 | 13 以下成分对人体有害或致癌吗？
一化妆品含以下成分：
aqua/eau
stearic acid
cetearyl alcohol
ceteareth-20
paraffin
triethanolamine
polyvinyl alcohol
phenoxyethanol
imidazolidinyl urea
methylparaben
propylene glycol
mica
titanium dioxide (cl77891)
感谢！ |
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d****i
发帖数: 360 | 14 One paper please! Thanks a lot! E-mail: x**********[email protected]
Preparation and pharmacodynamics of stearic acid and poly (lactic-co-
glycolic acid) grafted chitosan oligosaccharide micelles for 10-
hydroxycamptothecin
Show Abstract Zhou, Y.-Y., Du, Y.-Z., Wang, L., Yuan, H., Zhou, J.-P.,
Hu, F.-Q. 2010 International Journal of Pharmaceutics 393 (1-2), pp. 144-
152 |
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z***3
发帖数: 496 | 15 Journal of Colloid and Interface Science
Volume 49, Issue 2, November 1974, Pages 184-195
Adsorption and contact angle studies : I. Water on smooth carbon, linear
polyethylene, and stearic acid-coated copper
M. E. Tadros, P. Hu and A. W. Adamson
2*********[email protected]
thank you so much! |
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s********1
发帖数: 581 | 16 以下成分对人体有害或致癌吗？
一化妆品含以下成分：
aqua/eau
stearic acid
cetearyl alcohol
ceteareth-20
paraffin
triethanolamine
polyvinyl alcohol
phenoxyethanol
imidazolidinyl urea
methylparaben
propylene glycol
mica
titanium dioxide (cl77891)
感谢！ |
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s********1
发帖数: 581 | 17 以下成分对人体有害或致癌吗？
一化妆品含以下成分：
aqua/eau
stearic acid
cetearyl alcohol
ceteareth-20
paraffin
triethanolamine
polyvinyl alcohol
phenoxyethanol
imidazolidinyl urea
methylparaben
propylene glycol
mica
titanium dioxide (cl77891)
感谢！ |
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