Rapidly colorimetric detection of caffeine in beverages by silver nanoparticle sensors coupled with magnetic molecularly imprinted polymeric microspheres

2018 ◽  
Vol 54 (1) ◽  
pp. 202-211 ◽  
Author(s):  
Huiyun Deng ◽  
Bin Wang ◽  
Mao Wu ◽  
Bin Deng ◽  
Lianwu Xie ◽  
...  
Keyword(s):  
Silver Nanoparticle ◽  
Colorimetric Detection ◽  
Polymeric Microspheres ◽  
Molecularly Imprinted

scholarly journals Colorimetric Sensing of Amoxicillin Facilitated by Molecularly Imprinted Polymers

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2221
Author(s):  
Joseph W Lowdon ◽  
Hanne Diliën ◽  
Bart van Grinsven ◽  
Kasper Eersels ◽  
Thomas J. Cleij
Keyword(s):  
Binding Capacity ◽  
Colorimetric Detection ◽  
Bulk Polymerization ◽  
Colorimetric Sensing ◽  
Initial Development ◽  
Molecularly Imprinted ◽  
Synthetic Receptor ◽  
Displacement Assay ◽  
Size And Morphology ◽  
Task Sets

The scope of the presented research orientates itself towards the development of a Molecularly Imprinted Polymer (MIP)-based dye displacement assay for the colorimetric detection of the antibiotic amoxicillin in aqueous medium. With this in mind, the initial development of an MIP capable of such a task sets focus on monolithic bulk polymerization to assess monomer/crosslinker combinations that have potential towards the binding of amoxicillin. The best performing composition (based on specificity and binding capacity) is utilized in the synthesis of MIP particles by emulsion polymerization, yielding particles that prove to be more homogenous in size and morphology compared to that of the crushed monolithic MIP, which is an essential trait when it comes to the accuracy of the resulting assay. The specificity and selectivity of the emulsion MIP proceeds to be highlighted, demonstrating a higher affinity towards amoxicillin compared to other compounds of the aminopenicillin class (ampicillin and cloxacillin). Conversion of the polymeric receptor is then undertaken, identifying a suitable dye for the displacement assay by means of binding experiments with malachite green, crystal violet, and mordant orange. Once identified, the optimal dye is then loaded onto the synthetic receptor, and the displaceability of the dye deduced by means of a dose response experiment. Alongside the sensitivity, the selectivity of the assay is scrutinized against cloxacillin and ampicillin. Yielding a dye displacement assay that can be used (semi-)quantitatively in a rapid manner.

Magnetic molecularly imprinted polymers–silver nanoparticle based micro-solid phase extraction for the determination of polycyclic aromatic hydrocarbons in water samples

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 54702-54708 ◽  
Author(s):  
Mostafa Khajeh ◽  
Marzieh Sharifirad ◽  
Mousa Bohlooli ◽  
Mansour Ghaffari-Moghaddam
Keyword(s):  
Silver Nanoparticle ◽  
Aromatic Hydrocarbons ◽  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Magnetic Molecularly Imprinted Polymer ◽  
Magnetic Molecularly Imprinted Polymers ◽  
Polycyclic Aromatic

In this study, an efficient and sensitive magnetic molecularly imprinted polymer–silver nanoparticle (MMIPS) system was successfully synthesized.

Silver nanoparticle-supported hydroxyapatite as a material for visual detection of urinary cysteine

2019 ◽  
Vol 11 (22) ◽  
pp. 2888-2894 ◽  
Author(s):  
Retno Prasetia ◽  
Saowarux Fuangswasdi ◽  
Fuangfa Unob
Keyword(s):  
Silver Nanoparticle ◽  
Visual Detection ◽  
Colorimetric Detection

AgNP-supported hydroxyapatite as a new platform for colorimetric detection of urinary cysteine.

Silver nanoparticle@DNA tetrahedron-based colorimetric detection of HIV-related DNA with cascade strand displacement amplification

2019 ◽  
Vol 7 (16) ◽  
pp. 2608-2612 ◽  
Author(s):  
Xiaoyi Ma ◽  
Peng Miao
Keyword(s):  
Silver Nanoparticles ◽  
Silver Nanoparticle ◽  
Colorimetric Detection ◽  
Strand Displacement ◽  
Colorimetric Analysis ◽  
Strand Displacement Amplification ◽  
Nicking Endonuclease ◽  
Dna Tetrahedron

DNA tetrahedron-modified silver nanoparticles were constructed for the colorimetric analysis of HIV-related DNA with strand displacement polymerization and nicking endonuclease-aided cycles.

Hydrophilic-Hydrophobic Patterned Molecularly Imprinted Photonic Crystal Sensors for High-Sensitive Colorimetric Detection of Tetracycline

Small ◽  
2015 ◽  
Vol 11 (23) ◽  
pp. 2738-2742 ◽  
Author(s):  
Jue Hou ◽  
Huacheng Zhang ◽  
Qiang Yang ◽  
Mingzhu Li ◽  
Lei Jiang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Colorimetric Detection ◽  
Molecularly Imprinted

Removal of Rotenone from Contaminated Water Using Molecularly Imprinted Polymeric Microspheres

2011 ◽  
Vol 71-78 ◽  
pp. 1425-1428
Author(s):  
Kai Cheng Zhang ◽  
Si Ying Zhao ◽  
Ming Yang
Keyword(s):  
Removal Efficiency ◽  
New Method ◽  
Selective Recognition ◽  
Contaminated Water ◽  
Polymeric Microspheres ◽  
Molecularly Imprinted ◽  
Recognition Ability ◽  
Polymerization Method

A new method of removing rotenone from contaminated water using molecularly imprinted polymeric microspheres (MIPMs) is described. The MIPMs were prepared by the emulsifier-free polymerization method. The removal efficiency and selective recognition ability of the MIPMs were studied. The highest removal efficiency was observed at pH = 8. Moreover, the MIPMs can be re-used for at least 10 times without losing any removal efficiency. The MIPMs provided a selective, simple, reliable and practicable solution to remove rotenone from contaminated water.

Green synthesis of silver nanoparticle for the selective and sensitive colorimetric detection of mercury (II) ion

2017 ◽  
Vol 168 ◽  
pp. 67-77 ◽  
Author(s):  
Vijay Kumar ◽  
Devendra K. Singh ◽  
Sweta Mohan ◽  
Daraksha Bano ◽  
Ravi Kumar Gundampati ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Silver Nanoparticle ◽  
Colorimetric Detection
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