A Novel Polymeric Micropump based on a Multilayered Ionic Polymer-Metal Composite

Nguyen, Thanh Tung; Nguyen, Vinh Khanh; Yoo, Young Bum; Goo, Nam Seo

doi:10.1109/iecon.2006.347352

Cited by 15 publications

(5 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As this is the first report on IPMC-driven linear peristaltic pumps, there is no work in the literature to which we can directly compare the results. Compared to IPMCoperated membrane micro-pumps, our best pumping rate of 551 nL • min −1 is significantly less than 130 µL • min −1 achieved by Wang et al [24] or 760 µL • min −1 by Nguyen et al [25]. Previously reported linear peristaltic pumps driven by other smart materials such as U-SMAs have achieved 230 µL • min −1 [30] and CPs have attained 2.5 µL • min −1 [33].…”

Section: Experimental Evaluationmentioning

confidence: 65%

“…Some studies have also used low-voltage smart material actuators (up to 10 V range), i.e. unidirectional shape memory alloy (U-SMA) [22], [23], ionic polymer metal composite (IPMC) [24], [25] and conducting polymer (CP) [26] actuators. While membrane pumps can be realized in compact and miniaturizable structures, they typically require well-defined pump chambers with inlet and outlet mechanisms.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Ionic Polymer Metal Composite (IPMC)-Driven Linear Peristaltic Microfluidic Pump

Sideris

Lange

Hunt

2020

IEEE Robot. Autom. Lett.

View full text Add to dashboard Cite

Microfluidic devices and micro-pumps are increasingly necessitated in many fields ranging from untethered soft robots, to pharmaceutical and biomedical technology. While realization of such devices is limited by miniaturization constraints of conventional actuators, these restrictions can be resolved by using smart material transducers instead. This paper proposes and investigates the first ionic polymer metal composite (IPMC) actuator-driven linear peristaltic pump. With the aim of designing a monolithic device, our concept is based on a single IPMC actuator that is etched on both sides and cut with kirigami-inspired slits by laser ablation. Our pump has a planar configuration, operates with low activation voltages (< 5 V) and is simple to manufacture and thus miniaturize. We build proofof-principle prototypes of an open and closed design of our proposed pump concept, model the closed design, and evaluate both configurations experimentally. Results show the feasibility of the proposed IPMC-driven pump. Without any optimization, the open pump achieved pumping rates of 669 pL • s −1 , while the closed pump configuration attained a 4.57 Pa pressure buildup and 9.18 nL • s −1 pumping rate. These results indicate feasibility of the concept and future work will focus on design optimization.

show abstract

Section: Experimental Evaluationmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

An Ionic Polymer Metal Composite (IPMC)-Driven Linear Peristaltic Microfluidic Pump

Sideris

Lange

Hunt

2020

IEEE Robot. Autom. Lett.

View full text Add to dashboard Cite

show abstract

“…Using IPMCs for sensing or self-sensing allows obtaining of deformation readings with significantly more compact, integratable, economic and lightweight design than with conventional transducers. IPMCs can replace bulky vision systems [14,15], laser displacement sensors [16,17], load cells [18,19] and inductive sensors [20] from actuation systems of smart materials. Proposed IPMC sensing applications include sensing of vibrations [21], seismic waves [22], position in multiple degrees of freedom [23], bio-acoustic waves [24], force [25], pressure [26,27], tactile interactions [28] and flow [29].…”

Section: Introductionmentioning

confidence: 99%

Sensing and Self-Sensing Actuation Methods for Ionic Polymer–Metal Composite (IPMC): A Review

MohdIsa

Hunt

HosseinNia

2019

Sensors

View full text Add to dashboard Cite

Ionic polymer–metal composites (IPMC) are smart material transducers that bend in response to low-voltage stimuli and generate voltage in response to bending. IPMCs are mechanically compliant, simple in construction, and easy to cut into desired shape. This allows the designing of novel sensing and actuation systems, e.g., for soft and bio-inspired robotics. IPMC sensing can be implemented in multiple ways, resulting in significantly different sensing characteristics. This paper will review the methods and research efforts to use IPMCs as deformation sensors. We will address efforts to model the IPMC sensing phenomenon, and implementation and characteristics of different IPMC sensing methods. Proposed sensing methods are divided into active sensing, passive sensing, and self-sensing actuation (SSA), whereas the active sensing methods measure one of IPMC-generated voltage, charge, or current; passive methods measure variations in IPMC impedances, or use it in capacitive sensor element circuit, and SSA methods implement simultaneous sensing and actuation on the same IPMC sample. Frequency ranges for reliable sensing vary among the methods, and no single method has been demonstrated to be effective for sensing in the full spectrum of IPMC actuation capabilities, i.e., from DC to ∼100 Hz. However, this limitation can be overcome by combining several sensing methods.

show abstract

“…Since first introduced, the IPMC has been applied in many research fields such as biomedical systems, biomimetic robots, and MEMS devices [1][2][3][4][5][6][7][8][9][10][11]. In these applications, the IPMC may give advantages thanks to the low driven voltage, flexible operation, and simple actuating structure.…”

Section: Introductionmentioning

confidence: 99%

“…Although the IPMC has been applied to several applications, the sensing problem for these systems remains a challenge. Most previous closed-loop control for IPMC actuators employed the vision camera system [8,9] and laser displacement sensor [7,10,[12][13][14][15][16]. It is obvious that the vision camera system and laser displacement sensor may be inconvenient for mobile robots, micropumps, or biomedical applications due to its large size and immobility.…”

Section: Introductionmentioning

confidence: 99%

Modeling and control of a self-sensing polymer metal composite actuator

Nam¹,

Ahn²

2014

Smart Mater. Struct.

View full text Add to dashboard Cite

An ion polymer metal composite (IPMC) is an electro-active polymer (EAP) that bends in response to a small applied electrical field as a result of mobility of cations in the polymer network and vice versa. One drawback in the use of an IPMC is the sensing problem for such a small size actuator. The aim of this paper is to develop a physical model for a self-sensing IPMC actuator and to verify its applicability for practical position control.Firstly, ion dynamics inside a polymer membrane is investigated with an asymmetric solution in the presence of distributed surface resistance. Based on this analysis, a modified equivalent circuit and a simple configuration to realize the self-sensing IPMC actuator are proposed. Mathematical modelling and experimental evaluation indicate that the bending curvature can be obtained accurately using several feedback voltage signals along with the IPMC length. Finally, the controllability of the developed self-sensing IPMC actuator is investigated using a robust position control. Experimental results prove that the self-sensing characteristics can be applied in engineering control problems to provide a more convenient sensing method for IPMC actuating systems.

show abstract

A Novel Polymeric Micropump based on a Multilayered Ionic Polymer-Metal Composite

Cited by 15 publications

References 17 publications

An Ionic Polymer Metal Composite (IPMC)-Driven Linear Peristaltic Microfluidic Pump

An Ionic Polymer Metal Composite (IPMC)-Driven Linear Peristaltic Microfluidic Pump

Sensing and Self-Sensing Actuation Methods for Ionic Polymer–Metal Composite (IPMC): A Review

Modeling and control of a self-sensing polymer metal composite actuator

Contact Info

Product

Resources

About