Volume 62, Issue 35 e202308506
Research Article

Size- and Emission-Controlled Synthesis of Full-Color Luminescent Metal-Organic Frameworks for Tryptophan Detection

Dr. Hai-Lun Xia

Dr. Hai-Lun Xia

Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd, Nanshan District, Shenzhen, 518055 People's Republic of China

These authors contributed equally to this work.

Search for more papers by this author
Dr. Jian Zhang

Dr. Jian Zhang

Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd, Nanshan District, Shenzhen, 518055 People's Republic of China

These authors contributed equally to this work.

Search for more papers by this author
Jincheng Si

Jincheng Si

Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd, Nanshan District, Shenzhen, 518055 People's Republic of China

School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 People's Republic of China

Search for more papers by this author
Hexiang Wang

Hexiang Wang

State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian, 116024 People's Republic of China

Search for more papers by this author
Dr. Kang Zhou

Dr. Kang Zhou

Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd, Nanshan District, Shenzhen, 518055 People's Republic of China

Search for more papers by this author
Dr. Lei Wang

Dr. Lei Wang

Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd, Nanshan District, Shenzhen, 518055 People's Republic of China

Search for more papers by this author
Prof. Jingbai Li

Prof. Jingbai Li

Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd, Nanshan District, Shenzhen, 518055 People's Republic of China

Search for more papers by this author
Prof. Wen Sun

Prof. Wen Sun

State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian, 116024 People's Republic of China

Search for more papers by this author
Prof. Lulu Qu

Corresponding Author

Prof. Lulu Qu

School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 People's Republic of China

Search for more papers by this author
Prof. Jing Li

Corresponding Author

Prof. Jing Li

Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd, Nanshan District, Shenzhen, 518055 People's Republic of China

Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Road, Piscataway, NJ, 08854 USA

Search for more papers by this author
Prof. Xiao-Yuan Liu

Corresponding Author

Prof. Xiao-Yuan Liu

Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd, Nanshan District, Shenzhen, 518055 People's Republic of China

Search for more papers by this author
First published: 07 July 2023
Citations: 7

Graphical Abstract

Nano-luminescent metal–organic frameworks (LMOFs), with precise size control and emission colors from blue to near-infrared, were prepared using 2,1,3-benzothiadiazole and its derivative based ditopic- and tetratopic carboxylic acids as the emission sources. The nano-LMOFs exhibit turn-off and turn-on responses for highly selective and sensitive detection of tryptophan over nineteen other natural amino acids.

Abstract

The development of nanoscaled luminescent metal–organic frameworks (nano-LMOFs) with organic linker-based emission to explore their applications in sensing, bioimaging and photocatalysis is of great interest as material size and emission wavelength both have remarkable influence on their performances. However, there is lack of platforms that can systematically tune the emission and size of nano-LMOFs with customized linker design. Herein two series of fcu- and csq-type nano-LMOFs, with precise size control in a broad range and emission colors from blue to near-infrared, were prepared using 2,1,3-benzothiadiazole and its derivative based ditopic- and tetratopic carboxylic acids as the emission sources. The modification of tetratopic carboxylic acids using OH and NH2 as the substituent groups not only induces significant emission bathochromic shift of the resultant MOFs, but also endows interesting features for their potential applications. As one example, we show that the non-substituted and NH2-substituted nano-LMOFs exhibit turn-off and turn-on responses for highly selective and sensitive detection of tryptophan over other nineteen natural amino acids. This work sheds light on the rational construction of nano-LMOFs with specific emission behaviours and sizes, which will undoubtedly facilitate their applications in related areas.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.