REQUESTING [BOOK]
eBook ISBN: 9780080507118
Hardcover ISBN: 9780124605251
I tried to find it at libgen.io but I could not. I also couldn't find it on the other website. I was able to find the other volumes but not the first.
A new-to-me phenomenon: intracellular colloid vitrification in classical cryopreservation/slow freezing protocols.
A key paper here seems to be Zhou et al 2009. To quote from this paper:
"The exponential manner in which viscosity varies with volume fraction sheds light on the properties of constituent particles and the interactions among them. The viscosity of hard sphere colloids approaching a glass transition varies with volume fraction as described by Mooneyโs equation, whereas the viscosity of a molecular liquid approaching a glass transition varies with temperature T as described by the VogelโFulcherโTammann (VFT) equation... The similarity between these 2 equations suggests that in these systems ฮฆ and 1/T play analogous roles in the approach to the glass transition. We note in particular that in certain limits the Mooneyโs equation becomes exponential in ฮฆ, i.e., Arrhenius-like, and fits very well data for cells under compression (Fig. 4A). As such, the concept of fragility, which has been instrumental in the categorization of strong versus fragile molecular glass formers (29), can be extended to colloidal glassy systems... The fragility for hard spheres is seen to be quite high, whereas the fragility of cells is much lower (Fig. 4B). Our data therefore show that the osmotically compressed cell behaves very differently from a suspension of hard spheres; whereas the latter behaves as a fragile glass-former, the eukaryotic cell is reminiscent of a strong glass-former (29).
Physical Basis for Strong Glassy Behavior. That a soft cell under compressive stress behaves as a strong glass is a clear finding and represents the major result of this report... We found that ATP depletion strongly modulates the glass transition behavior of the cell, consistent with the notion that nonequilibrium processes may modulate glass transition behavior (35). Similarly, we found that F-actin disruption substantially increases the fragility, consistent with theoretical work demonstrating the effects of particle geometry on glass transition behavior (36). In addition, macromolecules, and organelles within the eukaryotic cytoplasm are far from being compact hard spheres. Even at isotonic volume fraction, it is likely that they interact with each other strongly, unlike the situation for hard sphere suspensions at a similar volume fraction, in which case the particles barely interact**.** Such interactions potent
... keep reading on reddit โก
I understand that they are molecules that are used in mixtures to create a sort of โgellingโ but is it because how they are arranged or due to specific bonds? How does its presence actually cause particles from not being able to settle?
Particleโbased amphiphiles: Ultraโsmall Janus particles (JPs) have been prepared using magnetite/organosilica particles in a click reaction with spatial control. The JPs show a pronounced and reversible magnetic response when applying a weak magnetic field to a dispersion which results in a difference in the interfacial energy.
Abstract
Amphiphiles alter the energy of surfaces, but the extent of this feature is typically constant. Smart systems with amphiphilicity as a function of an external, physical trigger are desirable. As a trigger, the exposure to a magnetic field, in particular, is attractive because it is not shielded in water. Amphiphiles like surfactants are well known, but the magnetic response of molecules is typically weak. Viceโversa, magnetic particles with strong response to magnetic triggers are fully established in nanoscience, but they are not amphiphilic. In this work colloids with Janus architecture and ultraโsmall dimensions (25โ nm) have been prepared by spatial control over the thiolโyne click modification of organosilicaโmagnetite coreโshell nanoparticles. The amphiphilic properties of these anisotropically modified particles are proven. Finally, a pronounced and reversible change in interfacial stabilization results from the application of a weak (
https://ift.tt/39HPRAM
One of my cooks today tried to make a glaze but for some reason he put it all in a pot and heated it while he added the water, then called me asking why it was crystallizing. I explained to him the whole thing about solutions and more sugar dissolving at higher temperatures and that when it cools, the solution is over saturated and crystals form. (I also got after him for not asking me questions if he doesn't know how to do stuff but that's beside the point)
The point I'm trying to get at is that this got me thinking about glazes and sugar solutions. Glazes don't seem like they would be a solution because they have entirely too much sugar for the amount of water. Maybe a colloid or suspension? Colloids don't settle, they remain stable. While Suspensions eventually settle out. Our glaze recipe does eventually settle after about a week or 2.
I suppose I just answered my own question but I'm looking for input on this rather inconsequential subject.
Stable Colloids appear to me as mixtures that not settle via Aggregation or Sedimentation. When looking up the definitions online, it seems that such Colloids can only be made of mixtures that contain at least a liquid or solid.
However, I do not realize why there cannot be a Gaseous Stable Colloid. For example, how is our Nitrogen/Oxygen Atmosphere not a Stable Colloid?
Ok so I think I found one that is good but I'm really not sure. I can post a picture later I think but I'm on my phone right now and don't have access to a computer until tomorrow.
Anyway!
The brand is Nexcare 3M acne dressing in a green box. The patches are clear but I'm not sure if it's working because the box says they will appear white when they are done. I use them overnight but they don't appear white in the morning.
I will write the Chinese on it here in case anyone knows anything about it. My face has gone crazy since I've gotten here but I've been using all the same products as in the states so I'm all desperate :(
ๅผทๆๅธ้ ้4๏ผ5ๅ ^ that is on a red circle in the top left
่ณ็้ฑๅฝข่ฒผ on a green banner under "Nexcare" on the top.
Then this paragraph ๅธๆถๆ็กๅๆณ็ฉ ๅ ้็ฎ่ๅพฉๅ ไธๆไฝฟ็ฎ่ไนพ็ฅ On the right middle.
This is probably a terrible post and I'll upload a picture tomorrow if it will help.
Also if anyone knows miracle products for acne (mixed skin type) please let me know. Going crazy here. :'(
I'm using oxy 5 spot cream and dr. G cleanser and peeling gel and garnier skin naturals pure active multi-action scrub with salicylic acid. I'm using the dr. G peeling gel on alternate days with the garnier stuff because my skin gets too dry if I use the garnier stuff daily.
Sorry for all the questions! I ran low on normal products and new stuff (oxy 5 and garnier) hasn't caused any issues when I spot tested on my neck, and I can't read any of these products so I'm lost haha.
I was diagnosed with hashi's in June and have an upcoming 6 month appointment in December.
I've been on levothyroxine since May, and am currently taking a 75 mcg dosage.
Lately, in the past month, I've had a stabbing pain in my neck, specifically in the lower right bit of the thyroid (where I know a cyst is).
Does anyone else with Hashi's get stabbing neck pains? I googled it, and of course it's just like, "cancer, cancer everywhere! so much cancer!".
