Gelatin particles, method for producing gelatin particles, gelatin particle-containing cell, and method for producing gelatin particle-containing cell
AssigneesYasuhiko Tabata, Konica Minolta, Inc.
InventorsChie Inui, Akihiro Maezawa, Yasuhiko Tabata
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Abstract
Disclosed herein are gelatin particles including gelatin, wherein when a major-axis length of dried gelatin particles is defined as a and a major-axis length of gelatin particles after swelling treatment obtained by immersing the dried gelatin particles in water at 40° C. under an atmospheric pressure for 60 minutes is defined as b, swelling degree represented by b/a is 1.0 or more but 10.0 or less, and wherein the gelatin particles after swelling treatment have a particle diameter of 1.0 nm or more but 5.0 μm or less. The gelatin particles are easily taken up by cells themselves.
Claims11
A method for producing gelatin particles, comprising:
- discharging droplets of a liquid containing melted gelatin into an atmosphere in a heating tube or a drying chamber, wherein a first temperature of the atmosphere is higher than a second temperature of the liquid, and a difference between the first temperature and the second temperature is 235° C. or less;
- and
- drying the droplets in the atmosphere to obtain gelatin particles,
- wherein a weight-average molecular weight of a gelatin of the gelatin particles is in a range of 1000 or more to 100000 or less, and
- when a major-axis length of the gelatin particles is defined as a and a major-axis length of the gelatin particles obtained in a case where a swelling treatment is carried out by immersing the gelatin particles into water at 40° C. under an atmospheric pressure for 60 minutes is defined as b, a swelling degree represented by b/a is 1.0 to 10.0, and wherein a particle diameter of the gelatin particles obtained in the case where the swelling treatment is carried out is 1.0 nm to 5.0 μm.
Dependencies are inferred from the claim text.