Paper-based piezoresistive MEMS force sensors

Liu, X.Y.; O'Brien, M D; Mwangi, Martin; Li, X.J.; Whitesides, George M.

doi:10.1109/memsys.2011.5734379

Cited by 28 publications

(23 citation statements)

References 16 publications

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“…Liu et al deposited graphite ink through screen printing onto chromatography paper achieving gage factors around 4 and demonstrating cantilever-base force sensors [1,2]. Recently, Khajeh et al developed an inkjet deposition method for paper with high porosity using percolation-based strain-sensitive resistors based on suspensions containing conductive amorphous carbon (carbon black, CB), a binder (sodium carboxymethylcellulose, CMC) and a surfactant (sodium cholate, SC) [3].…”

Section: Inkjet-printed Strain Sensingmentioning

confidence: 99%

“…To print strain sensitive resistors we developed a percolation-based strain-sensitive ink based on suspensions containing conductive CB, the binder CMC and the surfactant SC as in [1]. To achieve maximum reproducibility of the sensor characteristics we selected 2 wt% CB and 0.3 wt% binder for the present work as suggested in Fig.…”

Section: Preparation Of the Resistor Inkmentioning

confidence: 99%

“…Increasing the amount of surfactant to 0.3 wt% SC and 0.5 wt% Triton makes the ink composition suitable for a commercial printer. Figure 1: Gauge factor as a function of ink composition for the resistors; error bars correspond to +/-standard deviation; from [1].…”

Section: Preparation Of the Resistor Inkmentioning

confidence: 99%

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Rapid prototyping of resistive MEMS sensing devices on paper substrates

Meiss

Wertschutzky

Stoeber

2014

2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)

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We have developed an inexpensive inkjet printing process to rapidly fabricate resistive sensor devices on paper substrates. We utilize the percolation based resistive change in inkjet-printed resistors based on carbon black (CB). We fabricated an ink with 2 wt% CB, 0.3 wt% binder and added 0.3 % sodium cholate as well as 0.5 wt% triton as surfactant to print strain sensitive resistors. To connect the resistors we inkjet-printed conductors with a resistivity of 1 Ω/sq. Cutting and folding the paper substrate yields a sensor with a 3-dimensional structure for use as a tactile input device as well as an inertial sensor with a sensitivity of 8 mV / V g. Since we use a commercial inexpensive inkjet printer and the design can be modified and tested within minutes, the process is especially useful to easily develop and test MEMS sensor models. Additional applications encompass disposable medical sensors, sensors for paper packaging, as well as very low cost strain sensing.

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Section: Inkjet-printed Strain Sensingmentioning

confidence: 99%

Section: Preparation Of the Resistor Inkmentioning

confidence: 99%

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Rapid prototyping of resistive MEMS sensing devices on paper substrates

Meiss

Wertschutzky

Stoeber

2014

2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)

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“…45 . These microfluidic platforms includes glass, 21, 46, 47 polydimethylsiloxane (PDMS), 45, 48, 49 poly(methyl methacrylate) (PMMA), 36, 50, 51 poly(cyclic olefin), 52, 53 paper-based, 23, 54–59 and hybrid devices. 36, 60, 61 …”

Section: Introductionmentioning

confidence: 99%

Biomarker detection for disease diagnosis using cost-effective microfluidic platforms

Sanjay

Dou

et al. 2015

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227

171

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Early and timely detection of disease biomarkers can prevent the spread of infectious diseases, and drastically decrease the death rate of people suffering from different diseases such as cancer and infectious diseases. Because conventional diagnostic methods have limited application in low-resource settings due to the use of bulky and expensive instrumentation, simple and low-cost point-of-care diagnostic devices for timely and early biomarker diagnosis, is the need of the hour, especially in rural areas and developing nations. The microfluidics technology possesses remarkable features for simple, low-cost, and rapid disease diagnosis. There have been significant advances in the development of microfluidic platforms for diseases biomarker detection. This article reviews recent advances in biomarker detection using cost-effective microfluidic devices for disease diagnosis, with the emphasis on infectious disease and cancer diagnosis in low-resource settings. This review first introduces different microfluidic platforms (e.g. polymer and paper-based microfluidics) used for disease diagnosis, with a brief description of their common fabrication techniques. Then, it highlights various detection strategies for disease biomarker detection using microfluidic platforms, including colorimetric, fluorescence, chemiluminescence, electrochemiluminescence (ECL), and electrochemical detection. Finally, it discusses the current limitations of microfluidics devices for disease biomarker detection and the future perspectives.

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“…Besides printing conductive non-patterned or patterned areas on paper [1,2], an increasing number of devices and concepts have been demonstrated such as an all-organic active matrix display [3], a passive ultra-high radio frequency identification tag module embedded in a paper-on-paper structure [4], moisture and temperature sensors [5,6], an ethanol sensor [7], a piezoresistive microelectromechanical force sensor [8], a H 2 S sensor [9], a low-cost platform for electrochemical analysis [10], an electrochemical detection device for paper-based microfluidistics [11,12], and a photovoltaic device [13,14].…”

Section: Introductionmentioning

confidence: 99%