Highly sensitive and flexible inkjet printed SERS sensors on paper

Hoppmann, Eric P.; Wang, Ye; White, Ian M.

doi:10.1016/j.ymeth.2013.07.010

Cited by 138 publications

(100 citation statements)

References 31 publications

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“…[18][19][20][21][22][23][24][25] For an example, taking advantage of the drop-on-demand capabilities, inkjet printing has been explored for preparing combinatorial arrays of different matrix-assisted laser desorption / ionization (MALDI) matrices in multiple concentrations on a single chip. [18][19] Morlock et al have demonstrated a new approach using an elegant, simplified system assembled from ordinary inkjet printers and office scanners to perform separations on monolithic and nanostructured ultrathin-layer phases for high-performance thin-layer chromatography (TLC) experiments.…”

Section: Formation Of the Biotin/streptavidin Binding Assays On Dvdmentioning

confidence: 99%

“…20 Inkjet printing technology has also been extensively studied for the fabrication of paper-based sensors and devices for either colorimetric or spectroscopic reading. [21][22][23] We have reported the fabrication of microsensors on gold CD-Rs by inkjet printing alkanethiolate SAMs followed by chemical etching; 24 the same approach was used to fabricate microelectrode sets for immobilizing DNA strands and modulating their conformations. 25 The first task is to examine the actual resolution of the ink spot assays printed on a photo- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 6 activated DVD-R.…”

Section: Formation Of the Biotin/streptavidin Binding Assays On Dvdmentioning

confidence: 99%

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Inkjet-Printed Bioassays for Direct Reading with a Multimode DVD/Blu-Ray Optical Drive

Shi

Cui

et al. 2014

Anal. Chem.

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Compact disc-based bioassays have been developed as novel point-of-care (POC) tools for various applications in chemical analysis and biomedical diagnosis. For the fabrication of assay discs, the surface patterning and sample introduction have been restricted to manual delivery that is unfavorable for on-demand high throughput medical screening. Herein, we have adapted a conventional inkjet printer to prepare bioassays on regular DVD-Rs and accomplished quantitative analysis with a multimode DVD/Blu-Ray optical drive in conjunction with free disc diagnostic software. The feasibility and accuracy of this method have been demonstrated by the quantitative analysis of inkjet-printed biotin-streptavidin binding assays on DVD, which serves as a trial system for other complex, medically relevant sandwich-format or competitive immunoassays.

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Section: Formation Of the Biotin/streptavidin Binding Assays On Dvdmentioning

confidence: 99%

Section: Formation Of the Biotin/streptavidin Binding Assays On Dvdmentioning

confidence: 99%

Inkjet-Printed Bioassays for Direct Reading with a Multimode DVD/Blu-Ray Optical Drive

Shi

Cui

et al. 2014

Anal. Chem.

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“…7,8 More recently, there have been exciting developments in extending SERS techniques and methodologies to the ultrafast regime, in which femtosecond and picosecond time scale techniques have been coupled with the plasmonic materials used for SERS. These successes have opened a new direction in SERS research, in which new methods allow for the direct probing of mechanisms of plasmon-mediated chemical processes.…”

Section: Introductionmentioning

confidence: 99%

Ultrafast surface-enhanced Raman spectroscopy

Keller

Brandt

Cassabaum

et al. 2015

Analyst

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Ultrafast surface-enhanced Raman spectroscopy (SERS) with pico- and femtosecond time resolution has the ability to elucidate the mechanisms by which plasmons mediate chemical reactions. Here we review three important technological advances in these new methodologies, and discuss their prospects for applications in areas including plasmon-induced chemistry and sensing at very low limits of detection. Surface enhancement, arising from plasmonic materials, has been successfully incorporated with stimulated Raman techniques such as femtosecond stimulated Raman spectroscopy (FSRS) and coherent anti-Stokes Raman spectroscopy (CARS). These techniques are capable of time-resolved measurement on the femtosecond and picosecond time scale and can be used to follow the dynamics of molecules reacting near plasmonic surfaces. We discuss the potential application of ultrafast SERS techniques to probe plasmon-mediated processes, such as H2 dissociation and solar steam production. Additionally, we discuss the possibilities for high sensitivity SERS sensing using these stimulated Raman spectroscopies.

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“…This study clearly indicates that SERS will be one of the next-generation analytical tools for the rapid in-field analysis of target molecules. To realize the rapid in-field detection by SERS, cost-effective, sensitive and selective substrates are essential [22]. In order to detect TNT in environmental samples, a cost effective disposable SERS strip that is functionalized with a suitable binding molecule to selectively recognize TNT over other interfering analytes is highly desirable.…”

Section: Introductionmentioning

confidence: 99%

Molecular recognition of 2,4,6-trinitrotoluene by 6-aminohexanethiol and surface-enhanced Raman scattering sensor

Jamil

Sivanesan

Izake

et al. 2015

Sensors and Actuators B: Chemical

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TNT) sensor 6-Aminohexanethiol (AHT) and mixed monolayer Surface-enhanced Raman spectroscopy (SERS) Electrochemical desorption and X-ray photoelectron spectroscopy (XPS) Analysis of explosives in soil a b s t r a c t 2,4,6-Trinitrotoluene (TNT) is one of the most commonly used nitro aromatic explosives in landmine, military and mining industry. This article demonstrates rapid and selective identification of TNT by surface-enhanced Raman spectroscopy (SERS) using 6-aminohexanethiol (AHT) as a new recognition molecule. First, Meisenheimer complex formation between AHT and TNT is confirmed by the development of pink color and appearance of new band around 500 nm in UV-vis spectrum. Solution Raman spectroscopy study also supported the AHT:TNT complex formation by demonstrating changes in the vibrational stretching of AHT molecule between 2800 and 3000 cm −1 . For surface enhanced Raman spectroscopy analysis, a self-assembled monolayer (SAM) of AHT is formed over the gold nanostructure (AuNS) SERS substrate in order to selectively capture TNT onto the surface. Electrochemical desorption and Xray photoelectron studies are performed over AHT SAM modified surface to examine the presence of free amine groups with appropriate orientation for complex formation. Further, AHT and butanethiol (BT) mixed monolayer system is explored to improve the AHT:TNT complex formation efficiency. Using a 9:1 AHT:BT mixed monolayer, a very low detection limit (LOD) of 100 fM TNT was realized. The new method delivers high selectivity towards TNT over 2,4 DNT and picric acid. Finally, real sample analysis is demonstrated by the extraction and SERS detection of 302 pM of TNT from spiked. Crown

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Highly sensitive and flexible inkjet printed SERS sensors on paper

Cited by 138 publications

References 31 publications

Inkjet-Printed Bioassays for Direct Reading with a Multimode DVD/Blu-Ray Optical Drive

Inkjet-Printed Bioassays for Direct Reading with a Multimode DVD/Blu-Ray Optical Drive

Ultrafast surface-enhanced Raman spectroscopy

Molecular recognition of 2,4,6-trinitrotoluene by 6-aminohexanethiol and surface-enhanced Raman scattering sensor

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