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Zhong J, Ge M, Gu T, Wang T, Liu Z, Bai P. Ultra-stable and highly-bright CsPbBr 3 perovskite/silica nanocomposites for miRNA detection based on digital single-nanoparticle counting. Talanta 2024; 273:125903. [PMID: 38503120 DOI: 10.1016/j.talanta.2024.125903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/21/2024] [Accepted: 03/09/2024] [Indexed: 03/21/2024]
Abstract
Single-nanoparticle counting (SNPC) based on fluorescent tag (FT) stands out for its capacity to achieve amplification-free and sensitive detection of biomarkers. The stability and luminescence of FT are important to the sensitivity and reliability of SPNC. In this work, we developed novel perovskite/silica nanocomposites by in-situ nanoconfined growth of CsPbBr3 nanocrystals inside mesoporous structure of silica nanoparticles. PbBr(OH) was formed in an alkaline-assisted reaction triggered by water on the surface of CsPbBr3 nanocrystals. The as-obtained nanocomposites, featuring dual protection from silica matrix and PbBr(OH), exhibited high absolute photoluminescence quantum yield (PLQY) of 86.5% and demonstrated outstanding PL stability confronting with water, heat, ultrasound and UV-irradiation, which is desired by SNPC-based biosensor. Thereafter, these nanocomposites were used to construct an operationally friendly SNPC assay for the amplification-free quantification of cancer-associated miRNA. Quantitative detection of miRNA could be accomplished by directly counting the number of nanocomposites using a flow cytometer in this assay. This strategy did not ask for multiple washing steps and demonstrated specific and sensitive detection of miRNA 21, which exhibited a dynamic range of 1-1000 pM and limit of detection of 79 amol. The employment of highly stable perovskite/silica nanocomposites improved the test reliability and stability of SNPC, revealing the vast potential of perovskites in biosensing.
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Affiliation(s)
- Jiajun Zhong
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China
| | - Minghao Ge
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China
| | - Tongxu Gu
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China.
| | - Tong Wang
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China; CAS Key Lab of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, People's Republic of China
| | - Zhizhou Liu
- CAS Key Lab of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, People's Republic of China
| | - Pengli Bai
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China; CAS Key Lab of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, People's Republic of China.
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Hu Y, Song L, Tan C, Yang F, Wen Y, Wang L, Li H, Li X, Ma F, Lu S. Efficient sky-blue cesium lead bromide light-emitting diodes with enhanced stability via synergistic interfacial induction and polymer scaffold inhibition. J Colloid Interface Sci 2023; 650:330-338. [PMID: 37413867 DOI: 10.1016/j.jcis.2023.06.156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/08/2023]
Abstract
All inorganic CsPbX3 perovskite has aroused broad interests in building efficient light-emitting devices with wide color gamut and flexible fabrication process. So far, the realization of high-performance blue perovskite light-emitting devices (PeLEDs) is still a critical challenge. Herein, we propose an interfacial induction strategy to generate low-dimensional CsPbBr3 with sky blue emission by employing γ-aminobutyric acid (GABA) modified poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). The interaction between GABA and Pb2+ inhibited the formation of bulk CsPbBr3 phase. Further assisted by the polymer networks, the sky-blue CsPbBr3 film exhibited much improved stability under both photoluminescence and electrical excitation. This can be ascribed to the scaffold effect and the passivation function of the polymer. Consequently, the obtained sky-blue PeLEDs exhibited an average external quantum efficiency (EQE) of 5.67% (maximum of 7.21%) with a maximum brightness of 3308 cd/m2 and a working lifespan reaching 0.41 h. The strategy in this work provides a new opportunity for exploitation the full potential of blue PeLEDs towards application in lighting and display devices.
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Affiliation(s)
- Yongsheng Hu
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Li Song
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment and Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, Tianjin 300401, China.
| | - Chang Tan
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment and Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Fan Yang
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment and Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Yu Wen
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment and Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Lishuang Wang
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi 530004, China
| | - Haixia Li
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Xin Li
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Fengying Ma
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Siyu Lu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
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Chinnakutti KK, C Maridevaru M, Kaimal R, Paramasivam N, Kirubaharan AMK, Theerthagiri J, M L AK, Manickam S, Anandan S, Choi MY. Electrochemical detection of arsenic (III) hazardous chemicals using cubic CsPbBr 3 single crystals: Structural insights from DFT study. Environ Res 2023; 229:115940. [PMID: 37080276 DOI: 10.1016/j.envres.2023.115940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/11/2023] [Accepted: 04/17/2023] [Indexed: 05/03/2023]
Abstract
Long-term exposure to the highly toxic heavy metal arsenic can harm ecological systems and pose serious health risks to humans. Arsenic pollutant in water and the food chain must be addressed, and active prompt detection of As(III) is essential. The development of an effective detection method for As(III) ions is urgently needed to slow the alarming growth of arsenic pollution in the environment and safeguard the well-being of future generations. This study presents the results of our exhaustive investigation into cubic CsPbBr3 single crystals, the glassy carbon (GC) electrode modification with CsPbBr3 single crystals prepared by direct solvent evaporation, as well as our observations of the material's remarkable electrocatalytic properties and exceptional anti-interference sensing of As(III) ions in neutral pH media. The developed CsPbBr3/GC is exceptionally useful for the ultra-sensitive and specific identification of arsenic in water, exhibiting a detection limit of 0.381 μmol/L, a rapid response across a defined range of 0.1-25 μmol/L, and an ultra-sensitivity of 0.296 μA/μmolL-1. CsPbBr3/GCE (prepared without a specific reagent) is superior to other modified electrodes used as sensors in electrocatalytic activity, detection limit, analytical sensitivity, and stability response.
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Affiliation(s)
- Karthik Kumar Chinnakutti
- Department of Chemistry, Vinayaka Missions Kirupananda Variyar Arts and Science College, Vinayaka Missions Research Foundation (Deemed to Be University), Salem, 636308, India.
| | - Madappa C Maridevaru
- Nanomaterials and Solar Energy Conversion Laboratory, Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620015, India
| | - Reshma Kaimal
- Nanomaterials and Solar Energy Conversion Laboratory, Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620015, India
| | - Naveena Paramasivam
- Condensed Matter Theory Lab, Department of Physics, National Institute of Technology, Tiruchirappalli, 620015, India
| | - A M Kamalan Kirubaharan
- Coating Department, Centre for Functional and Surface Functionalised Glass, Alexander Dubcek University of Trencin, Trencin, 91150, Slovakia
| | - Jayaraman Theerthagiri
- Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry (BK21 FOUR), Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Aruna Kumari M L
- Department of Chemistry, The Oxford College of Science, Bengaluru, Karnataka, 560102, India
| | - Sivakumar Manickam
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Jalan Tungku Link Gadong, Bandar Seri Begawan, BE1410, Brunei Darussalam
| | - Sambandam Anandan
- Nanomaterials and Solar Energy Conversion Laboratory, Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620015, India.
| | - Myong Yong Choi
- Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry (BK21 FOUR), Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea.
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Chen Q, Lan X, Chen K, Ren Q, Shi J. Construction of WO 3/CsPbBr 3 S-scheme heterojunction via electrostatic Self-assembly for efficient and Long-Period photocatalytic CO 2 reduction. J Colloid Interface Sci 2022; 616:253-260. [PMID: 35217241 DOI: 10.1016/j.jcis.2022.02.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/08/2022] [Accepted: 02/11/2022] [Indexed: 11/20/2022]
Abstract
Owing to the severe photogenerated carriers recombination and low oxidation ability, the photocatalytic performance of pristine CsPbBr3 is still unsatisfactory. Herein, melamine foam supported S-scheme WO3/CsPbBr3 heterojunction is successfully synthesized by electrostatic self-assembly. Because of the appropriate energy level positions, an S-scheme charge migration route between CsPbBr3 and WO3 is constructed. Under solar light irradiation, melamine foam assisted WO3/CsPbBr3 exhibits significantly enhanced photocatalytic CO2 reduction performance under liquid H2O medium, and the electron consumption rate (Relectron) reaches to 1225.50 μmol.g-1.h-1, which is 1.49- and 13.7-fold of CsPbBr3 and WO3, respectively, ascribing to the boosted charges transfer and the strengthened redox ability. Furthermore, S-scheme WO3/CsPbBr3 heterojunction also exhibits strong durability, with no noticeable reduction of product yields after four 8-h cycles.
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Affiliation(s)
- Qiao Chen
- Department of Chemistry and Pharmaceutical Science, Qingdao Agricultural University, Qingdao 266109, People's Republic of China
| | - Xuefang Lan
- Department of Chemistry and Pharmaceutical Science, Qingdao Agricultural University, Qingdao 266109, People's Republic of China
| | - Keshuai Chen
- Department of Chemistry and Pharmaceutical Science, Qingdao Agricultural University, Qingdao 266109, People's Republic of China
| | - Qianqian Ren
- School of Management, Tongmyong University, Pusan 48520, Pusan, Korea
| | - Jinsheng Shi
- Department of Chemistry and Pharmaceutical Science, Qingdao Agricultural University, Qingdao 266109, People's Republic of China.
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Qaid SMH, Al-Asbahi BA, Ghaithan HM, AlSalhi MS, Al Dwayyan AS. Optical and structural properties of CsPbBr 3 perovskite quantum dots/PFO polymer composite thin films. J Colloid Interface Sci 2019; 563:426-434. [PMID: 31896488 DOI: 10.1016/j.jcis.2019.12.094] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/16/2019] [Accepted: 12/21/2019] [Indexed: 10/25/2022]
Abstract
The aim of this study is to investigate the optical and structural properties of polymer/perovskite quantum dots (QDs) composite thin films and estimate the applicability of using these blends as active materials in photonic devices. A solution has been utilized, which is processed based on conjugated polymer and perovskite QDs composite films. The incorporation of CsPbBr3 QDs, with various weight ratios, influences the structure of the thin films, as proven by several techniques. The results of the study showed that the surface of the poly(9,9-di-n-octylfluorenyl-2,7-diyl) (PFO)/CsPbBr3 thin films improved, when compared to that of the pristine CsPbBr3 thin film. The increase in the steepness parameter and decrease in both the energy gaps and Urbach tail, upon the increment of CsPbBr3 QDs, can be attributed to the decrease in the localized density of electronic states within the forbidden band gap of the hybrids. The overlap between the absorption spectrum of PFO and emission spectrum of CsPbBr3 QDs, and the enhancement in the emission peak of CsPbBr3 in the blends, confirmed the efficient non-radiative energy transfer between them.
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Affiliation(s)
- Saif M H Qaid
- Department of Physics & Astronomy, College of Sciences, King Saud University, Saudi Arabia; Department of Physics, Faculty of Science, Ibb University, Ibb, Yemen.
| | - B A Al-Asbahi
- Department of Physics & Astronomy, College of Sciences, King Saud University, Saudi Arabia; Department of Physics, Faculty of Science, Sana'a University, Yemen.
| | - Hamid M Ghaithan
- Department of Physics & Astronomy, College of Sciences, King Saud University, Saudi Arabia
| | - M S AlSalhi
- Department of Physics & Astronomy, College of Sciences, King Saud University, Saudi Arabia; Research Chair on Laser Diagnosis of Cancers, College of Sciences, King Saud University, Saudi Arabia
| | - Abdullah S Al Dwayyan
- Department of Physics & Astronomy, College of Sciences, King Saud University, Saudi Arabia; King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, Saudi Arabia
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