کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10928029 | 1092890 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Devitrification and recrystallization of nanoparticle-containing glycerol and PEG-600 solutions
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Devitrification and recrystallization of nanoparticle-containing glycerol and PEG-600 solutions Devitrification and recrystallization of nanoparticle-containing glycerol and PEG-600 solutions](/preview/png/10928029.png)
چکیده انگلیسی
Nanoparticles in solution offer unique electrical, mechanical and thermal properties due to their physical presence and interaction with the state of dispersion. This work is aimed to study the effects of hydroxyapatite (HA) nanoparticles on the devitrification and recrystallization events of two important cryoprotective solutions used in cell and tissue preservation namely glycerol (60%Â w/w) and PEG-600 (50%Â w/w). HA nanoparticles (20, 40 or 60Â nm) were incorporated into solutions at the content of 0.1% or 0.5%Â (w/w), and were studied by differential scanning calorimeter (DSC) and cryomicroscopy. The presence of nanoparticles does not change the glass transition temperatures and melting temperatures of quenched solutions, but significantly affects the behavior of devitrification and recrystallization upon warming. Cryomicroscopic investigation showed the complex interactions among solution type, nanoparticle size and nanoparticle content, which apparently influence ice crystal growth or recrystallization in the quenched dispersions. These findings have significant implications for biomaterial cryopreservation, cryosurgery, and food manufacturing. The complexity of ice crystal growth kinetics in nanoparticle-containing dispersions remains to be poorly understood at the moment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cryobiology - Volume 68, Issue 1, February 2014, Pages 84-90
Journal: Cryobiology - Volume 68, Issue 1, February 2014, Pages 84-90
نویسندگان
Fukou Lv, Baolin Liu, Weijie Li, Ganesh K. Jaganathan,