PMID- 22301174
OWN - NLM
STAT- MEDLINE
DCOM- 20120531
LR  - 20161125
IS  - 1878-0180 (Electronic)
IS  - 1878-0180 (Linking)
VI  - 6
DP  - 2012 Feb
TI  - Mechanical properties, anisotropic swelling behaviours and structures of 
      jellyfish mesogloea.
PG  - 63-73
LID - 10.1016/j.jmbbm.2011.10.005 [doi]
AB  - Learning from nature is a promising way for designing and fabricating new 
      materials with special properties. As the first step, we need to understand the 
      structures and properties of the natural materials. In this work, we paid 
      attention to the mesogloea of an edible jellyfish (Rhopilema esculenta 
      Kishinouye) and mainly focused on its structure, mechanical and swelling 
      properties. Scanning electron microscope (SEM) investigations show that jellyfish 
      mesogloea has a well-developed anisotropic microstructure, which consists of 
      nano-sized membranes connected with many fibres. The tensile and compressive 
      properties of swollen and dried jellyfish mesogloea samples are measured. The 
      jellyfish mesogloea displays very high tensile strength (0.17 MPa) and 
      compressive strength (1.43 MPa) even with 99 wt % water. The mechanical 
      properties of jellyfish mesogloea exceed most synthetic hydrogels with similar or 
      even lower water contents. Swelling in acidic and basic buffer solutions weakens 
      the mechanical properties of jellyfish mesogloea. The dried jellyfish mesogloea 
      has very high tensile strength and modulus, which are very similar to those of 
      synthetic plastics. The swelling properties of jellyfish mesogloea in solutions 
      with different pH values were studied. The jellyfish mesogloea exhibits 
      pH-sensitive and anisotropic swelling properties. The jellyfish mesogloea swells 
      (expands) in height but deswells (shrinks) in length and width, without 
      significant change in the volume. This phenomenon has never been reported for 
      synthetic hydrogels. This study may provide gel scientists new ideas in designing 
      and fabricating hydrogels with well-defined microstructures and unique mechanical 
      and swelling properties.
CI  - Copyright (c) 2011 Elsevier Ltd. All rights reserved.
FAU - Zhu, Jintang
AU  - Zhu J
AD  - College of Chemistry, Beijing Normal University, Beijing 100875, PR China.
FAU - Wang, Xuezhen
AU  - Wang X
FAU - He, Changcheng
AU  - He C
FAU - Wang, Huiliang
AU  - Wang H
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20111031
PL  - Netherlands
TA  - J Mech Behav Biomed Mater
JT  - Journal of the mechanical behavior of biomedical materials
JID - 101322406
RN  - 0 (Buffers)
RN  - 0 (Hydrogels)
RN  - 059QF0KO0R (Water)
RN  - Q40Q9N063P (Acetic Acid)
SB  - IM
MH  - Acetic Acid/chemistry
MH  - Animals
MH  - Anisotropy
MH  - Biomechanical Phenomena
MH  - Buffers
MH  - Cnidaria/*anatomy & histology
MH  - Hydrogels/chemistry
MH  - Hydrogen-Ion Concentration
MH  - Materials Testing
MH  - *Mechanical Phenomena
MH  - Water/chemistry
EDAT- 2012/02/04 06:00
MHDA- 2012/06/01 06:00
CRDT- 2012/02/04 06:00
PHST- 2011/09/15 00:00 [received]
PHST- 2011/10/21 00:00 [revised]
PHST- 2011/10/22 00:00 [accepted]
PHST- 2012/02/04 06:00 [entrez]
PHST- 2012/02/04 06:00 [pubmed]
PHST- 2012/06/01 06:00 [medline]
AID - S1751-6161(11)00269-4 [pii]
AID - 10.1016/j.jmbbm.2011.10.005 [doi]
PST - ppublish
SO  - J Mech Behav Biomed Mater. 2012 Feb;6:63-73. doi: 10.1016/j.jmbbm.2011.10.005. 
      Epub 2011 Oct 31.