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Bhatta RP, Agarwal A, Kachwal V, Raichure PC, Laskar IR. Enhanced TNT vapor sensing through a PMMA-mediated AIPE-active monocyclometalated iridium(III) complex: a leap towards real-time monitoring. Analyst 2024; 149:2445-2458. [PMID: 38506420 DOI: 10.1039/d3an02184j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Based on the explosive nature and harmful effects of nitro-based explosive materials on living beings and the environment, it is extremely important to develop luminescence-based probe molecules for their detection with excellent selectivity and sensitivity. Two AIPE (aggregation-induced phosphorescence emission)-active iridium(III) complexes (M1 and M2) were developed for the sensitive detection of TNT in both contact and non-contact modes. The aggregate solutions of both complexes (M1 and M2 in THF/H2O, 1/9 by volume) detected TNT at the pico-molar (pM) level. These complexes showed greatly enhanced emission intensity while embedded in a PMMA(polymethyl methacrylate) matrix film. The amplified quantum efficiency, improved phosphorescence lifetime, and enhanced porous network of M2-PMMA composite helps to improve the sesitivity of TNT vapor detection. Interestingly, the sensitivity of the detection of TNT by the M2 complex was significantly improved (5-fold) in a PMMA-incorporated complex (CP) with an observed limit of detection (LOD) of 12.8 ppb. From the BET analysis of CP, it was observed that the mesoporous network of CP has an average pore diameter of 8.52 nm and a surface area of 2.03 m2 g-1. The porous network of CP assists in trapping TNT vapor in a polymeric network containing an electron-rich probe (iridium(III) complex, M2), which helps to effectively trap TNT, thus enhancing electronic communication. As a result, significant emission quenching was observed.
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Affiliation(s)
- Ram Prasad Bhatta
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Campus, Pilani, Rajasthan 333031, India.
| | - Annu Agarwal
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Campus, Pilani, Rajasthan 333031, India.
| | - Vishal Kachwal
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Campus, Pilani, Rajasthan 333031, India.
| | - Pramod C Raichure
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Campus, Pilani, Rajasthan 333031, India.
| | - Inamur Rahaman Laskar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Campus, Pilani, Rajasthan 333031, India.
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2
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Li M, Liu M, Qi F, Lin FR, Jen AKY. Self-Assembled Monolayers for Interfacial Engineering in Solution-Processed Thin-Film Electronic Devices: Design, Fabrication, and Applications. Chem Rev 2024; 124:2138-2204. [PMID: 38421811 DOI: 10.1021/acs.chemrev.3c00396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Interfacial engineering has long been a vital means of improving thin-film device performance, especially for organic electronics, perovskites, and hybrid devices. It greatly facilitates the fabrication and performance of solution-processed thin-film devices, including organic field effect transistors (OFETs), organic solar cells (OSCs), perovskite solar cells (PVSCs), and organic light-emitting diodes (OLEDs). However, due to the limitation of traditional interfacial materials, further progress of these thin-film devices is hampered particularly in terms of stability, flexibility, and sensitivity. The deadlock has gradually been broken through the development of self-assembled monolayers (SAMs), which possess distinct benefits in transparency, diversity, stability, sensitivity, selectivity, and surface passivation ability. In this review, we first showed the evolution of SAMs, elucidating their working mechanisms and structure-property relationships by assessing a wide range of SAM materials reported to date. A comprehensive comparison of various SAM growth, fabrication, and characterization methods was presented to help readers interested in applying SAM to their works. Moreover, the recent progress of the SAM design and applications in mainstream thin-film electronic devices, including OFETs, OSCs, PVSCs and OLEDs, was summarized. Finally, an outlook and prospects section summarizes the major challenges for the further development of SAMs used in thin-film devices.
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Affiliation(s)
- Mingliang Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Ming Liu
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Feng Qi
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Francis R Lin
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Alex K-Y Jen
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, China
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3
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Li M, Li Z, Liu M, Fu H, Qi F, Lin FR, Walsh A, Jen AKY. A Hole-Selective Self-Assembled Monolayer for Both Efficient Perovskite and Organic Solar Cells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:4772-4778. [PMID: 38381871 DOI: 10.1021/acs.langmuir.3c03610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Self-assembled monolayers (SAMs) emerging as promising hole-selective layers (HSLs) are advantageous for facile processability, low cost, and minimal material consumption in the fabrication of both perovskite solar cells (PSCs) and organic solar cells (OSCs). However, owing to the different nature between perovskites and organic semiconductors, few SAMs were reported to effectively accommodate both PSCs and OSCs at the same time. In this regard, a universally applicable SAM that can accommodate both perovskites and organic semiconductors could be desirable for simplifying cell manufacturing, especially from an industrial perspective. In this work, we designed a SAM, TDPA-Cl by introducing chlorinated phenothiazine as the headgroup and linking with anchor phosphonic acid through a butyl chain. The resulting dense SAM was carefully characterized in terms of molecular bonding, surface morphology, and packing density, and its functions in OSCs and PSCs were discussed from the aspects of interactions with the absorber layer, energy level alignment, and charge-selective dipoles. The PM6:Y6-based OSCs with TDPA-Cl SAM as the HSL showed a superior performance to those with PEDOT:PSS. Furthermore, the universality was proved with an efficiency of 17.4% in the D18:Y6 system. In PSCs, the TDPA-Cl-based devices delivered a better performance of 22.4% than the PTAA-based devices (20.8%) with improved processability and reproducibility. This work represents a SAM with reasonably good compromise between the differing requirements of OSCs and PSCs.
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Affiliation(s)
- Mingliang Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon 999077, Hong Kong
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Zhenzhu Li
- Department of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom; Department of Physics, EWHA Womans University, Seoul 03760, South Korea
| | - Ming Liu
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon 999077, Hong Kong
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Huiting Fu
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon 999077, Hong Kong
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Feng Qi
- Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon 999077, Hong Kong
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Francis R Lin
- Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon 999077, Hong Kong
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, China
| | - Aron Walsh
- Department of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom; Department of Physics, EWHA Womans University, Seoul 03760, South Korea
| | - Alex K-Y Jen
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong
- Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon 999077, Hong Kong
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, China
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Liu W, Ali W, Liu Y, Li M, Li Z. Sensitive Detection of Trace Explosives by a Self-Assembled Monolayer Sensor. MICROMACHINES 2023; 14:2179. [PMID: 38138348 PMCID: PMC10745381 DOI: 10.3390/mi14122179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 11/22/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023]
Abstract
Fluorescence probe technology holds great promise in the application of trace explosive detection due to its high sensitivity, fast response speed, good selectivity, and low cost. In this work, a designed approach has been employed to prepare the TPE-PA-8 molecule, utilizing the classic aggregation-induced emission (AIE) property of 1,1,2,2-tetraphenylethene (TPE), for the development of self-assembled monolayers (SAMs) targeting the detection of trace nitroaromatic compound (NAC) explosives. The phosphoric acid acts as an anchoring unit, connecting to TPE through an alkyl chain of eight molecules, which has been found to play a crucial role in promoting the aggregation of TPE luminogens, leading to the enhanced light-emission property and sensing performance of SAMs. The SAMs assembled on Al2O3-deposited fiber film exhibit remarkable detection performances, with detection limits of 0.68 ppm, 1.68 ppm, and 2.5 ppm for trinitrotoluene, dinitrotoluene, and nitrobenzene, respectively. This work provides a candidate for the design and fabrication of flexible sensors possessing the high-performance and user-friendly detection of trace NACs.
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Affiliation(s)
- Weitao Liu
- Hunan Institute of Optoelectronic Integration, College of Materials Science and Engineering, Hunan University, Changsha 410082, China
| | - Wajid Ali
- Hunan Institute of Optoelectronic Integration, College of Materials Science and Engineering, Hunan University, Changsha 410082, China
| | - Ye Liu
- Hunan Institute of Optoelectronic Integration, College of Materials Science and Engineering, Hunan University, Changsha 410082, China
| | - Mingliang Li
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
| | - Ziwei Li
- Hunan Institute of Optoelectronic Integration, College of Materials Science and Engineering, Hunan University, Changsha 410082, China
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Yang L, Tian M, Qin J, Lu Y, Yu Q, Han J. A Luminescent Metal‐Organic Framework with Boosted Picric Acid Fluorescence Detection Performance via a Complementary Capture‐Quench Mechanism. Eur J Inorg Chem 2023. [DOI: 10.1002/ejic.202300089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Affiliation(s)
- Li Yang
- State Key Laboratory of Explosion Science and Technology of China Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing Institute of Technology 5 Zhongguancun South Street, Haidian District Beijing 100081 China
| | - Momang Tian
- State Key Laboratory of Explosion Science and Technology of China Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing Institute of Technology 5 Zhongguancun South Street, Haidian District Beijing 100081 China
| | - Jian Qin
- State Key Laboratory of Explosion Science and Technology of China Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing Institute of Technology 5 Zhongguancun South Street, Haidian District Beijing 100081 China
| | - Yuewen Lu
- State Key Laboratory of Explosion Science and Technology of China Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing Institute of Technology 5 Zhongguancun South Street, Haidian District Beijing 100081 China
| | - Qian Yu
- State Key Laboratory of Explosion Science and Technology of China Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing Institute of Technology 5 Zhongguancun South Street, Haidian District Beijing 100081 China
| | - Ji‐Min Han
- State Key Laboratory of Explosion Science and Technology of China Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing Institute of Technology 5 Zhongguancun South Street, Haidian District Beijing 100081 China
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Pyrene, Anthracene, and Naphthalene-Based Azomethines for Fluorimetric Sensing of Nitroaromatic Compounds. J Fluoresc 2023:10.1007/s10895-023-03155-w. [PMID: 36752930 DOI: 10.1007/s10895-023-03155-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 01/23/2023] [Indexed: 02/09/2023]
Abstract
Special attention is given to the development of rapid and sensitive detection of nitroaromatic explosives for homeland security and environmental concerns. As part of our contribution to the detection of nitroaromatic explosives, fluorescent materials (A), (B) and (C) were synthesized from the reaction of 1,2-diaminocyclohexane with pyrene-1-carbaldehyde, anthracene-9-carbaldehyde and 2-hydroxy-1-naphthaldehyde, respectively. The structures of the prepared fluorescent azomethine probes were confirmed using FTIR, 1H-NMR and 13C-NMR spectroscopies. The basis of the study is the use of the synthesized materials as fluorescent probes in the photophysical and fluorescence detection of some nitroaromatic explosives. Emission increases occurred due to aggregation caused by π-π stacking in synthesized azomethines. To measure the nitroaromatic detection capabilities of fluorescence probes, fluorescence titration experiments were performed using the photoluminescence spectroscopy. It was observed that compound A containing pyrene ring provided the best emission intensity-increasing effect due to aggregation with the lowest LOD value (14.96 μM) for the sensing of 4-nitrophenol. In compounds B and C, nitrobenzene with the lowest LOD (16.15 μM and 23.49 μM respectively) caused the most regular emission increase, followed by picric acid.
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Shen T, Chen M, Zhang H, Sun JZ, Tang BZ. Copolymers of 4-Trimethylsilyl Diphenyl Acetylene and 1-Trimethylsilyl-1-Propyne: Polymer Synthesis and Luminescent Property Adjustment. Molecules 2022; 28:molecules28010027. [PMID: 36615223 PMCID: PMC9822087 DOI: 10.3390/molecules28010027] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/16/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Poly(4-trimethylsilyl diphenyl acetylene) (PTMSDPA) has strong fluorescence emission, but its application is limited by the effect of aggregation-caused quenching (ACQ). Copolymerization is a commonly used method to adjust the properties of polymers. Through the copolymerization of 4-trimethylsilyl diphenyl acetylene and 1-trimethylsilyl-1-propyne (TMSP), we successfully realized the conversion of PTMSDPA from ACQ to aggregation-induced emission (AIE) and aggregation-induced emission enhancement (AEE). By controlling the monomer feeding ratio and with the increase of the content of TMSDPA inserted into the copolymer, the emission peak was red-shifted, and a series of copolymers of poly(TMSDPA-co-TMSP) that emit blue-purple to orange-red light was obtained, and the feasibility of the application in explosive detection was verified. With picric acid (PA) as a model explosive, a super-quenching process has been observed, and the quenching constant (KSV) calculated from the Stern-Volmer equation is 24,000 M-1, which means that the polymer is potentially used for explosive detection.
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Affiliation(s)
- Tanxiao Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Manyu Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Haoke Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
- Centre of Healthcare Materials, Shaoxing Institute, Zhejiang University, Shaoxing 312000, China
- Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China
| | - Jing Zhi Sun
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
- Centre of Healthcare Materials, Shaoxing Institute, Zhejiang University, Shaoxing 312000, China
- Correspondence: ; Tel.: +86-13958091775
| | - Ben Zhong Tang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
- Shenzhen Institute of Aggregate Science and Technology, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, China
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Zhang F, Sun J, Shi F, Han Q, Shi Y, Yang L, Wang K, Dong B, Wang L, Xu L. Nanometric Surface-Selective Regulation of Au/In 2O 3 Nanofibers as an Exhaled H 2S Chemiresistor for Periodontitis Diagnosis. ACS Sens 2022; 7:3530-3539. [PMID: 36367464 DOI: 10.1021/acssensors.2c01926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
As one of the most prevalent diseases in the world, timely early intervention for periodontitis is a great challenge because the indicator is imperceptible. The exhaled H2S is considered to be a promising biomarker for fast and invasive periodontitis screening; however, the high-performance H2S gas sensor with excellent selectivity and sensitivity which is applicable to the oral cavity remains technically challenging. Herein, a self-assembled monolayer (SAM)-functionalized Au/In2O3 nanofiber (NF) sensor for H2S exhalation analysis was developed to flexibly and effectively modulate the selectivity of the sensor. Through optimizing the specific binding capacity to H2S by systematic adjustment with terminal groups and alkyl chains of SAMs, the sensing performance of the SAM-functionalized Au/In2O3 NF sensor is greatly enhanced. In the optimal (Au/In2O3-MPTES) sensor, the functionalization of the MPTES molecule could achieve significant response enhancement because of the stronger interaction between the sulfhydryl group at the end of the MPTES and H2S. Density functional theory simulation supports the proposed selective sensing mechanism via the analysis of adsorption energy and charge density distribution. The sensor exhibited a high response to H2S (1505.3-10 ppm) at an operating temperature of 100 °C with a low practical detection limit of 10 ppb and 13-145 fold enhanced selectivity. Furthermore, the Au/In2O3-MPTES sensor was successfully applied to distinguish the breath of healthy individuals and patients with severe periodontitis. This study provides novel design insights for the development of highly selective gas sensors for clinical aids in the diagnosis and detection of oral diseases such as periodontitis.
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Affiliation(s)
- Fanrou Zhang
- Department of Oral Implantology, Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Jiao Sun
- Department of Cell Biology, College of Basic Medical Sciences, Jilin University, Changchun 130021, People's Republic of China
| | - Fangyu Shi
- Department of Oral Implantology, Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Qi Han
- Department of Oral Implantology, Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Yujia Shi
- Department of Oral Implantology, Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Long Yang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130021, China
| | - Kun Wang
- Department of Oral Implantology, Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Biao Dong
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130021, China
| | - Lin Wang
- Department of Oral Implantology, Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Lin Xu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130021, China
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Receptor free fluorescent and colorimetric sensors for solution and vapor phase detection of hazardous pollutant nitrobenzene; a new structural approach to design AIEE active and piezofluorochromic sensors. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114022] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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10
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Wang A, Tian M, Zuo Y, Gou Z. Carbazole-siloxane based polymers for the selective detection of 4-nitrophenol and Fe3+. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Khan NA, Waheed S, Junaid HM, Hamad A, Imran M, Shah SH, Khan GS, Shahzad SA. Ultra-Sensitive Fluorescent and Colorimetric Probes for Femtomolar Detection of Picric Acid: Mechanochromic, Latent Fingerprinting, and pH Responsive Character with AIE Properties. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Bal M, Tümer M, Köse M. Investigation of Chemosensing and Color Properties of Schiff Base Compounds Containing a 1,2,3-triazole Group. J Fluoresc 2022; 32:2237-2256. [PMID: 36044163 DOI: 10.1007/s10895-022-03007-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 07/26/2022] [Indexed: 10/14/2022]
Abstract
A series of Schiff base compounds (ER1-ER5) containing a 1,2,3-triazole and carboxylic acid groups were synthesized and their chemosensory properties towards anions (I-, CO32-, SO42-, NO2-, NO3-, CH3COO-, ClO3-, CNO-, N3-) and cations (Al3+, Ag+, Co2+, Cr3+, Cu2+, Fe3+, Hg2+, Mn2+, Ni2+, Zn2+, Cd2+, Pb2+). The compounds were also used as fluorescence probs for the detection of nitroaromatic compounds. The structural characterization of the synthesized compounds was elucidated using methods such as FT-IR, UV, FL, LC-MS, MALDI-TOF MS, 1H(13C) NMR. The effect of substitute groups (-CH3, -OCH3, -OH, -Cl and -Br) on the synthesized Schiff bases (ER1-ER5) on the chemosensory properties were compared. As the groups changed, the sensor and quenching effects of the molecule against anions and cations changed. Compound ER3 having methoxy (OCH3) group exhibited selective sensor properties against Fe3+ ion while compound ER5 with a chloride substitute (Cl) group showed selectivity for Cr3+ ion under 254 nm UV-lamp. The substitute effect was also observed for the sensing of anions. Under 254 nm UV-lamp, ER2 having the -OH group has a selective sensing property for CNO- and ER4 with the bromide (Br) group exhibited selectivity for N3- ion. The synthesized Schiff base compounds were also tested as fluorescence probs for the sensing of some nitroaromatic explosives.
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Affiliation(s)
- Mustafa Bal
- Department of Materials Science and Engineering, Kahramanmaras Sutcu Imam University, Kahramanmaraş, 46100, Turkey.
| | - Mehmet Tümer
- Chemistry Department, Kahramanmaras Sutcu Imam University, Kahramanmaraş, 46100, Turkey
| | - Muhammet Köse
- Chemistry Department, Kahramanmaras Sutcu Imam University, Kahramanmaraş, 46100, Turkey
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13
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Charan Behera K, Mallick D, Narayan Patra B, Bag B. A Pyrene-Rhodamine FRET couple as a chemosensor for selective detection of picric acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 271:120934. [PMID: 35101722 DOI: 10.1016/j.saa.2022.120934] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
Selective detection of nitroaromatic compounds such as Picric acid (PA), those being explosive materials and hazardous pollutants of environmental and biological concern is highly desirable. With the operational advantages of the chemosensing approach, a pyrene-rhodamine-B couple (1) was explored in this investigation as a ratiometric molecular probe for selective and sensitive detection of picric acid. The bi-fluorophoric probe displayed absorption and fluorescence enhancements along with colourless to reddish-brown colour transition as signaling responses in the selective presence of PA among all the nitro aromatic analyte investigated. The signaling module relies on PA- mediated modulation of various operational photo-physical processes such as (a) inhibition of photo-induced electron transfer (PET) operative from amino-donor to excited pyrene (b) a conformational translation through spiro-ring opening of rhodamine-B segment, and (c) initiation of Fluorescence Resonance Energy Transfer (FRET) between excited pyrene donor and ring-opened rhodamine acceptor. The ratio of fluorescence from both fluorophores (pyrene and Rhodamine) as output channel displayed sensitive signaling performance (LOD = 13.8 nM) in the detection of PA. The investigation that inferred to the PA-induced selectivity in signalling, higher binding affinity (log Ka≈11), a faster response time, and reversibility in signalling with a counter analyte and an operational pH range established the probe's efficacy as a chemosensor for PA detection.
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Affiliation(s)
- Kanhu Charan Behera
- Materials Chemistry Department, CSIR-Institute of Minerals and Materials Technology, P. O.: R.R.L, Bhubaneswar 751013, Odisha, India; Department of Chemistry, Utkal University, Bhubaneswar 751004, Odisha, India
| | - Debajani Mallick
- Materials Chemistry Department, CSIR-Institute of Minerals and Materials Technology, P. O.: R.R.L, Bhubaneswar 751013, Odisha, India
| | - Braja Narayan Patra
- Department of Chemistry, Utkal University, Bhubaneswar 751004, Odisha, India
| | - Bamaprasad Bag
- Materials Chemistry Department, CSIR-Institute of Minerals and Materials Technology, P. O.: R.R.L, Bhubaneswar 751013, Odisha, India.
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Yin Y, Ding A, He F, Wang C, Kong L, Yang J. Alkyl-Engineered Dual-State Luminogens with Pronounced Odd-Even Effects: Quantum Yields with up to 48% Difference and Crystallochromy with up to 22 nm Difference. J Phys Chem B 2022; 126:2921-2929. [PMID: 35394770 DOI: 10.1021/acs.jpcb.2c01387] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Alkyl chain-resulted odd-even effects in fluorescence quantum yield (FLQY) have also been reported in organic luminescent materials (OLMs). However, the odd-even effects in FLQY caused by the alkyl substitutes in OLMs are generally very weak, with only single-digit differences. Here, we report a series of alkyl-substituted dual-state luminogens (DSEgens) showing extremely high solid-state FLQY in even-numbered analogues (>90% FLQY) and a dramatically pronounced odd-even effect in FLQY. The odd-even effect in FLQY is over 26% alternation, and a maximum of 48% difference in FLQY was observed between the compounds C1 and C2 with a methyl and ethyl substitution, respectively. C1 and C2 also displayed a crystallochromy with a 22 nm difference in emission wavelength. In addition, odd-even effects in the melting point and decomposition temperature were also observed. With these bright DSEgens, applications such as specific recognition of picric acid and ultrasensitive trace water detection have been demonstrated.
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Affiliation(s)
- Yuanye Yin
- College of Chemistry and Chemical Engineering, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Anhui University, Hefei 230061, PR China
| | - Aixiang Ding
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, PR China
| | - Felicia He
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Chengyuan Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Anhui University, Hefei 230061, PR China
| | - Lin Kong
- College of Chemistry and Chemical Engineering, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Anhui University, Hefei 230061, PR China
| | - Jiaxiang Yang
- College of Chemistry and Chemical Engineering, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Photoelectric Conversion Energy Materials and Devices Key Laboratory of Anhui Province, Anhui University, Hefei 230061, PR China
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15
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Li M, Xie K, Wang G, Zheng J, Cao Y, Wei F, Tu H, Tang J. A Formaldehyde Sensor Based on Self-Assembled Monolayers of Oxidized Thiophene Derivatives. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:5916-5922. [PMID: 33909431 DOI: 10.1021/acs.langmuir.1c00396] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
High-performance formaldehyde sensors play an important role in air quality assessment. Herein, a self-assembled monolayer (SAM) sensor for trace formaldehyde (FA) is fabricated based on the fluorescence enhancement of oxidized thiophene derivatives. In the primary SAM molecules, the functional backbone trithiophene (3T) links to the anchor through an n-propyl group. The anchor with an active Si-Cl bond can form a covalent bond with the SiO2 substrate by solution incubation, which ensures good stability against organic solvents and high sensitivity via monolayer structures. With the alkyl chain's leading, a dense 3T SAM can be obtained on SiO2. Upon exposure to UV light in the presence of oxygen, 3T can be oxidized into a nonfluorescent but coordination-active product with abundant carbonyl groups, which can be doped with FA and induce a blueshifted fluorescence. With this mechanism, we proposed an SAM-based FA sensor by detecting the enhancement of the blueshifted fluorescence. Reliable reversibility, selectivity, stability, and detection limit lower than 1 ppm are achieved in this system. The work provides an experimental basis for developing a cheap, efficient, and flexible sensor for trace FA detection.
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Affiliation(s)
- Mingliang Li
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
| | - Kefeng Xie
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Guozhi Wang
- GRIMAT Engineering Institute Co., Ltd, Beijing 101407, P. R. China
- State Key Laboratory of Advanced Materials for Smart Sensing, General Research Institute for Nonferrous Metals, Beijing 100088, P. R. China
| | - Jing Zheng
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
| | - Yingnan Cao
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
| | - Feng Wei
- GRIMAT Engineering Institute Co., Ltd, Beijing 101407, P. R. China
- State Key Laboratory of Advanced Materials for Smart Sensing, General Research Institute for Nonferrous Metals, Beijing 100088, P. R. China
| | - Hailing Tu
- GRIMAT Engineering Institute Co., Ltd, Beijing 101407, P. R. China
- State Key Laboratory of Advanced Materials for Smart Sensing, General Research Institute for Nonferrous Metals, Beijing 100088, P. R. China
| | - Jinyao Tang
- Department of Chemistry, The University of Hong Kong, Hong Kong 999077, China
- State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Hong Kong 999077, China
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16
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Chen HY, Yao CC, Tseng TY, Yeh YC, Huang HS, Yeh MY. Synthesis and photophysical properties of benzoxazolyl-imidazole and benzothiazolyl-imidazole conjugates. RSC Adv 2021; 11:40228-40234. [PMID: 35494111 PMCID: PMC9044771 DOI: 10.1039/d1ra08342b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 12/13/2021] [Indexed: 11/21/2022] Open
Abstract
Materials that have higher fluorescence emission in the solid state than molecules in solution have recently been paid more attention by the scientific community due to their potential applications in various fields. In this work, we newly synthesized benzoxazolyl-imidazole and benzothiazolyl-imidazole conjugates, which show aggregation-induced emission (AIE) features in their solid and aggregate states. It was found that oxygen and sulfur substitutions can dramatically influence the molecular structures and polarities of the dyes, leading to different degrees of the AIE phenomenon. The benzothiazolyl-imidazole molecule has lower polarity compared to that of benzoxazolyl-imidazole; therefore, the dye bearing a benzothiazolyl group shows higher emission intensity and dual emission in aqueous solution. Theoretical calculation results suggest that the benzothiazolyl-imidazole molecules might have electrostatic interactions between sulfur and nitrogen atoms, explaining the experimental observations of lower critical aggregation concentration and photophysical properties both in solution and in the solid state. The theoretical calculations agree with the experimental data, thus demonstrating a potent strategy to gain a deep understanding of the structure–property relationships to design solid-state fluorescent materials. The effect of heteroatoms on the structural and photophysical properties of donor-π-acceptor molecules, comprising imidazole and benzoxazolyl as well as imidazole and benzothiazolyl units, was investigated.![]()
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Affiliation(s)
- Hsing-Yu Chen
- Department of Chemistry, Chung Yuan Christian University, No. 200, Zhongbei Rd., Zhongli Dist., Taoyuan City 320314, Taiwan
| | - Chen-Chen Yao
- Department of Chemistry, Chung Yuan Christian University, No. 200, Zhongbei Rd., Zhongli Dist., Taoyuan City 320314, Taiwan
| | - Tzu-Yu Tseng
- Department of Chemistry, Chung Yuan Christian University, No. 200, Zhongbei Rd., Zhongli Dist., Taoyuan City 320314, Taiwan
| | - Yao-Chun Yeh
- Department of Chemistry, Chung Yuan Christian University, No. 200, Zhongbei Rd., Zhongli Dist., Taoyuan City 320314, Taiwan
| | - He-Shin Huang
- Department of Chemistry, Chung Yuan Christian University, No. 200, Zhongbei Rd., Zhongli Dist., Taoyuan City 320314, Taiwan
| | - Mei-Yu Yeh
- Department of Chemistry, Chung Yuan Christian University, No. 200, Zhongbei Rd., Zhongli Dist., Taoyuan City 320314, Taiwan
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