PMID- 32999826
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240329
IS  - 2198-3844 (Print)
IS  - 2198-3844 (Electronic)
IS  - 2198-3844 (Linking)
VI  - 7
IP  - 18
DP  - 2020 Sep
TI  - Engineered Microstructure Derived Hierarchical Deformation of Flexible Pressure 
      Sensor Induces a Supersensitive Piezoresistive Property in Broad Pressure Range.
PG  - 2000154
LID - 10.1002/advs.202000154 [doi]
LID - 2000154
AB  - Fabricating flexible pressure sensors with high sensitivity in a broad pressure 
      range is still a challenge. Herein, a flexible pressure sensor with engineered 
      microstructures on polydimethylsiloxane (PDMS) film is designed. The high 
      performance of the sensor derives from its unique pyramid-wall-grid 
      microstructure (PWGM). A square array of dome-topped pyramids and crossed 
      strengthening walls on the film forms a multiheight hierarchical microstructure. 
      Two pieces of PWGM flexible PDMS film, stacked face-to-face, form a 
      piezoresistive sensor endowed with ultrahigh sensitivity across a very broad 
      pressure range. The sensitivity of the device is as high as 383 665.9 and 
      269 662.9 kPa(-1) in the pressure ranges 0-1.6 and 1.6-6 kPa, respectively. In 
      the higher pressure range of 6.1-11 kPa, the sensitivity is 48 689.1 kPa(-1), and 
      even in the very high pressure range of 11-56 kPa, it stays at 1266.8 kPa(-1). 
      The pressure sensor possesses excellent bending and torsional strain detection 
      properties, is mechanically durable, and has potential applications in wearable 
      biosensing for healthcare. In addition, 2 x 2 and 4 x 4 sensor arrays are 
      prepared and characterized, suggesting the possibility of manufacturing a 
      flexible tactile sensor.
CI  - (c) 2020 The Authors. Published by Wiley-VCH GmbH.
FAU - Li, Gang
AU  - Li G
AD  - State Key Laboratory of Biobased Materials and Green Papermaking Qilu University 
      of Technology Shandong Academy of Science Jinan Shandong 250353 China.
FAU - Chen, Duo
AU  - Chen D
AD  - Institute for Advanced Interdisciplinary Research University of Jinan (iAIR) 
      Jinan 250022 China.
FAU - Li, Chenglong
AU  - Li C
AD  - State Key Laboratory of Biobased Materials and Green Papermaking Qilu University 
      of Technology Shandong Academy of Science Jinan Shandong 250353 China.
FAU - Liu, Wenxia
AU  - Liu W
AD  - State Key Laboratory of Biobased Materials and Green Papermaking Qilu University 
      of Technology Shandong Academy of Science Jinan Shandong 250353 China.
FAU - Liu, Hong
AU  - Liu H
AUID- ORCID: 0000-0003-1640-9620
AD  - Institute for Advanced Interdisciplinary Research University of Jinan (iAIR) 
      Jinan 250022 China.
AD  - State Key Laboratory of Crystal Materials Shandong University Jinan 250100 P. R. 
      China.
LA  - eng
PT  - Journal Article
DEP - 20200819
PL  - Germany
TA  - Adv Sci (Weinh)
JT  - Advanced science (Weinheim, Baden-Wurttemberg, Germany)
JID - 101664569
PMC - PMC7509712
OTO - NOTNLM
OT  - engineered microstructures
OT  - flexible tactile sensors
OT  - hierarchical deformation modes
OT  - highest sensitivity
OT  - piezoresistive pressure sensors
COIS- The authors declare no conflict of interest.
EDAT- 2020/10/02 06:00
MHDA- 2020/10/02 06:01
PMCR- 2020/08/19
CRDT- 2020/10/01 05:38
PHST- 2020/01/13 00:00 [received]
PHST- 2020/05/31 00:00 [revised]
PHST- 2020/10/01 05:38 [entrez]
PHST- 2020/10/02 06:00 [pubmed]
PHST- 2020/10/02 06:01 [medline]
PHST- 2020/08/19 00:00 [pmc-release]
AID - ADVS1929 [pii]
AID - 10.1002/advs.202000154 [doi]
PST - epublish
SO  - Adv Sci (Weinh). 2020 Aug 19;7(18):2000154. doi: 10.1002/advs.202000154. 
      eCollection 2020 Sep.