“Gear-driven”-type chirality transfer of tetraphenylethene-based supramolecular organic frameworks for peptides in water

Yan, Chaochao; Li, Qingfang; Wang, Kaige; Yang, Wanni; Han, Jingyu; Li, Yawen; Dong, Yunhong; Chu, Dake; Cheng, Lin; Cao, Liping

doi:10.1039/d3sc06349f

Chem. Sci.

2024

DOI: 10.1039/d3sc06349f

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“Gear-driven”-type chirality transfer of tetraphenylethene-based supramolecular organic frameworks for peptides in water

Chaochao Yan,

Qingfang Li,

Kaige Wang

et al.

Abstract: Chirality transfer for natural chiral biomolecules can reveal the indispensable role of chiral structures in life and can be used to develop the chirality-sensing biomolecular recognition. Here, we report the...

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A Portable Electrochemical Biosensor Based on an Amino-Modified Ionic Metal–Organic Framework for the One-Site Detection of Multiple Organophosphorus Pesticides

Wu,

Wang,

Wang

et al. 2024

ACS Appl. Mater. Interfaces

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Constructing stable, portable sensors and revealing their mechanisms is challenging. Ion metal−organic frameworks (IMOFs) are poised to serve as highly effective electrochemical sensors for detecting organophosphorus pesticides (OPs), leveraging their unique charge properties. In this work, an amino-modified IMOF was constructed and combined with near-field communication (NFC) technology to develop a portable, touchless, and battery-free electrochemical biosensor NH 2 -IMOF@CS@AChE. -NH 2 in NH 2 -IMOF gives the framework a higher electropositivity compared to IMOF, enhancing the electrostatic attraction with acetylcholinesterase (AChE), which is beneficial for immobilizing AChE. Furthermore, the uncoordinated O atoms and the (CH 3 ) 2 NH 2 + groups in NH 2 -IMOF help to form stronger bonds with AChE through hydrogen bonds. The results showed a wide linear response range of 1 × 10 −15 to 1 × 10 −9 M and a low detection limit of 1.24 × 10 −13 M for glyphosate (Gly) in the practical detection of OPs. Additionally, electrochemical biosensor arrays were constructed to effectively identify and distinguish multiple OPs on the basis of their unique differential pulse voltammetry (DPV) electrochemical signals. This work provides a simple and effective solution for on-site OP analysis and can be widely applied in food safety and water quality monitoring.

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A Portable Electrochemical Biosensor Based on an Amino-Modified Ionic Metal–Organic Framework for the One-Site Detection of Multiple Organophosphorus Pesticides

Wu,

Wang,

Wang

et al. 2024

ACS Appl. Mater. Interfaces

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show abstract

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“Gear-driven”-type chirality transfer of tetraphenylethene-based supramolecular organic frameworks for peptides in water

Abstract: Chirality transfer for natural chiral biomolecules can reveal the indispensable role of chiral structures in life and can be used to develop the chirality-sensing biomolecular recognition. Here, we report the...

Cited by 1 publication

References 66 publications

A Portable Electrochemical Biosensor Based on an Amino-Modified Ionic Metal–Organic Framework for the One-Site Detection of Multiple Organophosphorus Pesticides

A Portable Electrochemical Biosensor Based on an Amino-Modified Ionic Metal–Organic Framework for the One-Site Detection of Multiple Organophosphorus Pesticides

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