Portable label-free inverse opal photonic hydrogel particles serve as facile pesticides colorimetric monitoring

A novel smart sensor for the rapid and label-free detection of benzocaine has been developed based on the combination of photonic crystal (PC) and molecular imprinting polymer (MIP) techniques.

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Enzymatic Inverse Opal Hydrogel Particles for Biocatalyst

ACS Applied Materials & Interfaces ◽

10.1021/acsami.7b01866 ◽

2017 ◽

Vol 9 (15) ◽

pp. 12914-12918 ◽

Cited By ~ 33

Author(s):

Huan Wang ◽

Hongcheng Gu ◽

Zhuoyue Chen ◽

Luoran Shang ◽

Ze Zhao ◽

...

Keyword(s):

Inverse Opal ◽

Hydrogel Particles

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Boronate affinity molecularly imprinted inverse opal particles for multiple label-free bioassays

Chemical Communications ◽

10.1039/c5cc09371f ◽

2016 ◽

Vol 52 (16) ◽

pp. 3296-3299 ◽

Cited By ~ 30

Author(s):

Huan Wang ◽

Qionghua Xu ◽

Luoran Shang ◽

Jie Wang ◽

Fei Rong ◽

...

Keyword(s):

Sensitivity And Specificity ◽

High Sensitivity ◽

Inverse Opal ◽

Label Free ◽

Molecularly Imprinted ◽

Label Free Detection

Boronate affinity molecularly imprinted inverse opal particles were developed for the multiplex label-free detection of glycoproteins with high sensitivity and specificity.

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Macroporous ordered titanium dioxide (TiO2) inverse opal as a new label-free immunosensor

Analytica Chimica Acta ◽

10.1016/j.aca.2008.07.008 ◽

2008 ◽

Vol 625 (1) ◽

pp. 63-69 ◽

Cited By ~ 42

Author(s):

Jianlin Li ◽

Xiangwei Zhao ◽

Hongmei Wei ◽

Zhong-Ze Gu ◽

Zuhong Lu

Keyword(s):

Titanium Dioxide ◽

Inverse Opal ◽

Label Free

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Label-free colorimetric detection of tetracycline using analyte-responsive inverse-opal hydrogels based on molecular imprinting technology

New Journal of Chemistry ◽

10.1039/c7nj02368e ◽

2017 ◽

Vol 41 (18) ◽

pp. 10174-10180 ◽

Cited By ~ 16

Author(s):

Qian Yang ◽

Hailong Peng ◽

Jinhua Li ◽

Yanbin Li ◽

Hua Xiong ◽

...

Keyword(s):

Molecular Imprinting ◽

Colorimetric Detection ◽

Inverse Opal ◽

Label Free ◽

Molecular Imprinting Technology

Analyte-responsive inverse-opal hydrogels based on molecular imprinting technology were fabricated for selective, sensitive, and label-free colorimetric detection of tetracycline.

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An Antibody-Immobilized Silica Inverse Opal Nanostructure for Label-Free Optical Biosensors

Sensors ◽

10.3390/s18010307 ◽

2018 ◽

Vol 18 (1) ◽

pp. 307 ◽

Cited By ~ 20

Author(s):

Wang Lee ◽

Taejoon Kang ◽

Shin-Hyun Kim ◽

Jinyoung Jeong

Keyword(s):

Optical Biosensors ◽

Inverse Opal ◽

Label Free

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Label-free, mass-sensitive single-molecule imaging using interferometric scattering microscopy

Essays in Biochemistry ◽

10.1042/ebc20200023 ◽

2020 ◽

Author(s):

Nikolas Hundt

Keyword(s):

Single Molecule ◽

Cellular Systems ◽

Single Molecule Imaging ◽

Label Free ◽

Measurement Sensitivity ◽

Mass Distributions ◽

Quantitative Measurements ◽

Contrast Mechanism ◽

Cellular Components ◽

Scattering Signal

Abstract Single-molecule imaging has mostly been restricted to the use of fluorescence labelling as a contrast mechanism due to its superior ability to visualise molecules of interest on top of an overwhelming background of other molecules. Recently, interferometric scattering (iSCAT) microscopy has demonstrated the detection and imaging of single biomolecules based on light scattering without the need for fluorescent labels. Significant improvements in measurement sensitivity combined with a dependence of scattering signal on object size have led to the development of mass photometry, a technique that measures the mass of individual molecules and thereby determines mass distributions of biomolecule samples in solution. The experimental simplicity of mass photometry makes it a powerful tool to analyse biomolecular equilibria quantitatively with low sample consumption within minutes. When used for label-free imaging of reconstituted or cellular systems, the strict size-dependence of the iSCAT signal enables quantitative measurements of processes at size scales reaching from single-molecule observations during complex assembly up to mesoscopic dynamics of cellular components and extracellular protrusions. In this review, I would like to introduce the principles of this emerging imaging technology and discuss examples that show how mass-sensitive iSCAT can be used as a strong complement to other routine techniques in biochemistry.

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A microfluidic device with integrated impedance detection for λ-DNA

MRS Proceedings ◽

10.1557/proc-773-n6.5 ◽

2003 ◽

Vol 773 ◽

Cited By ~ 1

Author(s):

Myung-Il Park ◽

Jonging Hong ◽

Dae Sung Yoon ◽

Chong-Ook Park ◽

Geunbae Im

Keyword(s):

Microfluidic Device ◽

Electrochemical Impedance ◽

Direct Detection ◽

Full Potential ◽

Label Free ◽

Buffer Solution ◽

Detection Systems ◽

Significant Difference ◽

Detection Of Biomolecules ◽

Impedance Magnitude

AbstractThe large optical detection systems that are typically utilized at present may not be able to reach their full potential as portable analysis tools. Accurate, early, and fast diagnosis for many diseases requires the direct detection of biomolecules such as DNA, proteins, and cells. In this research, a glass microchip with integrated microelectrodes has been fabricated, and the performance of electrochemical impedance detection was investigated for the biomolecules. We have used label-free λ-DNA as a sample biomolecule. By changing the distance between microelectrodes, the significant difference between DW and the TE buffer solution is obtained from the impedance-frequency measurements. In addition, the comparison for the impedance magnitude of DW, the TE buffer, and λ-DNA at the same distance was analyzed.

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