All-Optical Decoder for Rapid and Noncontact Readout of Thermal Barcodes

Hou, Sichao; Zheng, Wenjun; Duong, Binh; Su, Ming

doi:10.1021/acs.jpcc.6b08565

Cited by 14 publications

(9 citation statements)

References 25 publications

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“…However, some still rely on visual pattern changes in response to thermal stimuli (e.g., thermochromism) . There is a method that utilizes heat and temperature change as input and output, respectively . However, the method relies on the brief heat flow change during the phase change of materials at different melting points.…”

Section: Discussionmentioning

confidence: 99%

“…2 There is a method that utilizes heat and temperature change as input and output, respectively. 18 However, the method relies on the brief heat flow change during the phase change of materials at different melting points. Therefore, the inspection process is slow because the input stimulus (excitation) requires a broad range of temperature change, but the detection time duration is short due to the abrupt phase change procedure.…”

Section: ■ Discussionmentioning

confidence: 99%

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Inkjet-Printed Multiwavelength Thermoplasmonic Images for Anticounterfeiting Applications

Kang

Lee

Nam

2018

ACS Appl. Mater. Interfaces

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Inkjet printing of thermoplasmonic nanoparticles enables instantaneous, large-area heat pattern generation upon light illumination from distance. By printing multiple metal nanoparticles of different shapes overlaid, we can fabricate multiwavelength thermoplasmonic images, which generate different heat patterns from a single printed image depending on the wavelength choice of light. In this work, we propose a novel multiwavelength thermoplasmonic image printing process that can be used for anticounterfeit technology. With this technology, "printed thermoplasmonic labels" allow fully secured anticounterfeit inspection procedure. Input stimulus of near-infrared or infrared light illumination and output signal reading of thermal patterns can be both completely invisible. Wavelength selective photothermal effect also enables the encryption of the contained information, which adds more complexity and thus higher security.

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Section: Discussionmentioning

confidence: 99%

Section: ■ Discussionmentioning

confidence: 99%

Inkjet-Printed Multiwavelength Thermoplasmonic Images for Anticounterfeiting Applications

Kang

Lee

Nam

2018

ACS Appl. Mater. Interfaces

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“…However, decoding with DSC requires the sampling and heating of the nanoparticle in an aluminium pan. 161 There are some developments in decoding instruments to improve the readout such as using an infra-red camera sensor to detect the abrupt changes in the heating or cooling temperature of the phase change nanoparticle remotely as depicted in Fig. 11c and d.…”

Section: Phase Change Based Encodingmentioning

confidence: 99%

“…(c) Infra-red camera sensor to decode the thermal barcode with colour sensing. (d) (i-iv) Thermal images of materials: stearic, palmitic, lauric acid and icosane at different temperatures captured by the infrared camera 161. Figure panels reproduced from ref.…”

mentioning

confidence: 99%

Versatile design and synthesis of nano-barcodes

et al. 2017

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Encoded nano-structures/particles have been used for barcoding and are in great demand for the simultaneous analysis of multiple targets. Due to their nanoscale dimension(s), nano-barcodes have been implemented favourably for bioimaging, in addition to their security and multiplex bioassay application. In designing nano-barcodes for a specific application, encoding techniques, synthesis strategies, and decoding techniques need to be considered. The encoding techniques to generate unique multiple codes for nano-barcodes are based on certain encoding elements including optical (fluorescent and non-fluorescent), graphical, magnetic, and phase change properties of nanoparticles or their different shapes and sizes. These encoding elements can generally be embedded inside, decorated on the surface of nanostructures or self-assembled to prepare the nano-barcodes. The decoding techniques for each encoding technique are different and need to be suitable for the desired applications. This review will provide a thorough discussion on designing nano-barcodes, focusing on the encoding techniques, synthesis methods, and decoding for applications including bio-detection, imaging, and anti-counterfeiting. Additionally, associated challenges in the field and potential solutions will also be discussed. We believe that a comprehensive understanding on this topic could significantly contribute towards the advancement of nano-barcodes for a broad spectrum of applications.

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“…Higher temperature may lead to the melting of agarose gel. Since the detection wavelength of our infrared camera is 8-14 microns, so the measured emissivity is the average emissivity within this range 126. DNA migration on photothermally enhanced gel electrophoresis Enhanced gel electrophoretic separation of DNAs in dynamically controlled photothermal temperature gradient.…”

mentioning

confidence: 99%

Photo-thermally enhanced temperature gradient gel electrophoresis for DNA separation

Hou¹

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A great challenge of genomics and proteomics is the repeatable and reproducible separation of DNA and proteins with high resolution. Gel electrophoresis is irreplaceably applied for separation and isolation of macromolecules, including DNA, RNA and protein, by providing diffusion resistance to molecules of different size and shape. The separation capability of gel electrophoresis is relatively low for long DNA segment limited by the modest voltage employed for the separation, even for high voltage capillary electrophoresis system. On the other hand, temperature that can affect all physicochemical properties of solution, gel and macromolecules, plays a significant role in gel electrophoresis. Although uncontrolled temperature variation in electrophoresis is considered pestiferous to separation, leading to low reproducibility of separation and thermal degradation of sensitive analytes, a controlled variation in temperature can be beneficial to separation. Temperature has a strong influence on the diffusion coefficient, which determines migration rate in gel electrophoresis. Temperature, at the meantime, affects the structural and mechanical properties of gel such as pore size, gelation rate and elastic modulus, among which the pore size has a significant impact on diffusion. This project describes a photothermal method to enhance gel electrophoretic separation of DNAs. A photothermal temperature gradient is created within an agarose gel using a digital micromirror device (DMD) to dynamically examine the effect of temperature gradient on DNA separation. Temperature gradient between 20-60 °C was established in gel with dynamically controlled patterns. The relation between light brightness and temperature, luminance, and power density was measured for quantitative analysis. While the effect of gel thickness can be ignored in heat transfer.

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All-Optical Decoder for Rapid and Noncontact Readout of Thermal Barcodes

Cited by 14 publications

References 25 publications

Inkjet-Printed Multiwavelength Thermoplasmonic Images for Anticounterfeiting Applications

Inkjet-Printed Multiwavelength Thermoplasmonic Images for Anticounterfeiting Applications

Versatile design and synthesis of nano-barcodes

Photo-thermally enhanced temperature gradient gel electrophoresis for DNA separation

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