Biotemplated Fabrication of a Multifunctional Superwettable Shape Memory Film for Wearable Sensing Electronics and Smart Liquid Droplet Manipulation

2021 ◽  
Author(s):  
Lili Ma ◽  
Jiaxin Wang ◽  
Jinmei He ◽  
Yali Yao ◽  
Xuedan Zhu ◽  
...  
Keyword(s):  
Shape Memory ◽  
Liquid Droplet ◽  
Wearable Sensing ◽  
Droplet Manipulation

Noncontact All‐In‐Situ Reversible Reconfiguration of Femtosecond Laser‐Induced Shape Memory Magnetic Microcones for Multifunctional Liquid Droplet Manipulation and Information Encryption

2021 ◽  
pp. 2100543
Author(s):  
Chuanzong Li ◽  
Yunlong Jiao ◽  
Yiyuan Zhang ◽  
Shaojun Jiang ◽  
Xiaodong Lv ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Shape Memory ◽  
Liquid Droplet ◽  
Droplet Manipulation

scholarly journals Droplet manipulation on a structured shape memory polymer surface

Lab on a Chip ◽  
2017 ◽  
Vol 17 (10) ◽  
pp. 1793-1801 ◽  
Author(s):  
Jun Kyu Park ◽  
Seok Kim
Keyword(s):  
Shape Memory ◽  
Liquid Droplet ◽  
Shape Memory Polymer ◽  
Polymer Surface ◽  
Morphological Gradient ◽  
Gradient Forces ◽  
Droplet Manipulation

Manipulation of a liquid droplet on a structured shape memory polymer surface with thermal Marangoni and morphological gradient forces.

DEVELOPMENT OF A NON-CONTINUOUS MICRO-FLOW OPTO-WETTING DROPLET MANIPULATION TECHNOLOGY

2005 ◽  
Vol 17 (06) ◽  
pp. 293-299 ◽  
Author(s):  
MING-YIH LEE ◽  
HUNG-CHIA LIN ◽  
HUNG-WEI CHIANG ◽  
WEI-XUN LEE ◽  
XIAN-DONG HUANG
Keyword(s):  
Surface Tension ◽  
Uv Light ◽  
Liquid Droplet ◽  
Average Particle Size ◽  
Base Material ◽  
Material Surface ◽  
Average Particle ◽  
Hydrophilic Property ◽  
Manipulation System ◽  
Droplet Manipulation

The aim of this study is to develop a non-continuous droplet manipulation technology in contrast to conventional continuous flow micro-fluidic systems. The droplets were manipulated based on the proposed opto-wetting effect. In addition, an experimental ultraviolet (UV) light actuated droplet manipulation system was developed for verifying the opto-wetting droplet manipulation. The proposed opto-wetting effect was achieved by utilizing ultraviolet to activate oxidation-reduction mechanism of nano-TiO2 photo catalyst coated base material. The water-affinity of the base material will changed due to the decreased free-energy of the material surface. Therefore, the contact angle between the liquid droplet and base material will also be changed which facilitates droplet manipulability. The main components of the proposed ultraviolet (UV) light actuated droplet manipulation system include ultraviolet masking device, moving platform and main frame structure. System software and user interface were designed by using Microsoft Visual Basic 6.0 toolkit. Upon completion of the proposed system, experiments were carried out to verify system functionalities. Follow by the controlled variable optimization using Taguchi method and liquid droplet manipulation experiments. The experiment results indicate that by exposure to 6.8mW UV light, the surface tension and hydrophilic property of nano-TiO2 (anatase type, 3.5% concentration, PH 1.5, and with average particle size of 69 nm) coated base material will changed. The change of surface tension and hydrophilic property were critical for droplet manipulation. The moving speed of the liquid droplet was measured as 3.33mm/sec. The results suggest that the opto-wetting system may be effective to overcome the shortcoming of traditional opto-electrowetting technique. The proposed opto-wetting droplet manipulation system could potentially applied for manipulating biomedical or pathological test specimens in the future.

A digital microfluidic platform based on a near-infrared light-responsive shape-memory micropillar array

Lab on a Chip ◽  
2021 ◽  
Author(s):  
Wen-Qi Ye ◽  
Yun-Yun Wei ◽  
Dan-Ni Wang ◽  
Chun-Guang Yang ◽  
Zhang-Run Xu
Keyword(s):  
Shape Memory ◽  
Near Infrared ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Microfluidic Platform ◽  
Droplet Manipulation ◽  
Digital Microfluidic ◽  
Micropillar Array

Droplet manipulation on a near-infrared light-responsive shape-memory micropillar array.

Anisotropic, adhesion-switchable, and thermal-responsive superhydrophobicity on the femtosecond laser-structured shape-memory polymer for droplet manipulation

2020 ◽  
Vol 400 ◽  
pp. 125930 ◽  
Author(s):  
Xue Bai ◽  
Qing Yang ◽  
Yao Fang ◽  
Jiale Yong ◽  
Yongkang Bai ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Shape Memory ◽  
Shape Memory Polymer ◽  
Droplet Manipulation

scholarly journals Switchable Wettability and Adhesion of Micro/Nanostructured Elastomer Surface via Electric Field for Dynamic Liquid Droplet Manipulation

2020 ◽  
Vol 7 (18) ◽  
pp. 2000772 ◽  
Author(s):  
Yan Li ◽  
Jinrong Li ◽  
Liwu Liu ◽  
Yufeng Yan ◽  
Qiuya Zhang ◽  
...  
Keyword(s):  
Electric Field ◽  
Liquid Droplet ◽  
Droplet Manipulation

Ultrafast single-droplet bouncing actuator with electrostatic force on superhydrophobic electrodes

RSC Advances ◽  
2016 ◽  
Vol 6 (71) ◽  
pp. 66729-66737 ◽  
Author(s):  
Seulah Lee ◽  
Sanggeun Lee ◽  
Hyunseok Hwang ◽  
Juree Hong ◽  
Soonil Lee ◽  
...  
Keyword(s):  
Liquid Droplet ◽  
Electrostatic Force ◽  
Single Droplet ◽  
Droplet Manipulation ◽  
First Time

The ultrafast bouncing motion of a liquid droplet has been investigated for droplet manipulation with a single droplet actuator using an electrostatic force for the first time.

Omni‐Liquid Droplet Manipulation Platform

2019 ◽  
pp. 1900653 ◽  
Author(s):  
Junchang Guo ◽  
Dehui Wang ◽  
Qiangqiang Sun ◽  
Linxian Li ◽  
Huaixia Zhao ◽  
...  
Keyword(s):  
Liquid Droplet ◽  
Droplet Manipulation

Tensile Failure of 55-Nitinol Wire

1975 ◽  
Vol 33 ◽  
pp. 46-47
Author(s):  
F. I. Grace
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Stoichiometric Composition ◽  
Tensile Failure ◽  
Initial State ◽  
Initial Shape ◽  
Nitinol Wire ◽  
Cscl Type ◽  
Shear Transformation

An interest in NiTi alloys with near stoichiometric composition (55 NiTi) has intensified since they were found to exhibit a unique mechanical shape memory effect at the Naval Ordnance Laboratory some twelve years ago (thus refered to as NITINOL alloys). Since then, the microstructural mechanisms associated with the shape memory effect have been investigated and several interesting engineering applications have appeared.The shape memory effect implies that the alloy deformed from an initial shape will spontaneously return to that initial state upon heating. This behavior is reported to be related to a diffusionless shear transformation which takes place between similar but slightly different CsCl type structures.

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