当前位置： SCI文献检索 > INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES期刊下所有文献 > Self-healing, sensitive and antifreezing biomass nanocomposite hydrogels based on hydroxypropyl guar gum and application in flexible sensors.

Self-healing, sensitive and antifreezing biomass nanocomposite hydrogels based on hydroxypropyl guar gum and application in flexible sensors.

Abstract：

:In this manuscript, self-healing, highly flexible hydrogels based on hydroxypropyl guar gum (HPG) were prepared by adding dopamine-coated reduced-graphene oxide (rGO@PDA). The multiple reversible dynamic networks were simultaneously constructed by boron-oxygen and metal-ligand interactions. These multiple networks significantly improve the self-healing efficiency and mechanical strength of the biomass hydrogels. It is noteworthy that rGO@PDA can enhance conductivity and flexibility properties. Impressively, flexible sensor with these self-healing hydrogels have a large strain range (728%), high sensitivity (GF = 11.30) and fast response time (210 ms). The obtained flexible sensors can also detect human motion (such as sound vibrations and pulse rates) to large scales (such as knee flexion) over a wide temperature range (-20-30 °C). The signals of sensors have superior stability and repeatability, which show potential application prospect in the field of flexible wearable devices.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Sun Z,Wang L,Jiang X,Bai L,Wang W,Chen H,Yang L,Yang H,Wei D

doi

10.1016/j.ijbiomac.2019.11.134

subject

Has Abstract

pub_date

2020-07-15 00:00:00

pages

1569-1577

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(19)36560-2

journal_volume

155

pub_type

杂志文章

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