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A Deferasirox Derivative That Acts as a Multifaceted Platform for the Detection and Quantification of Fe3+. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9040068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Here, we report that ExSO3H, a synthetically accessible, water-soluble, non-toxic derivative of the clinical iron chelator deferasirox, acts as a colorimetric chemosensor that permits the detection and quantification of Fe3+ in aqueous samples at pH 2–5. In addition, we observed that a fluorescent turn-on response was produced when this chelator was allowed to interact with human serum albumin (HSA). This fluorescence was quenched in the presence of Fe3+, thus allowing us to monitor the presence of this biologically important metal cation via two independent methods.
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Han Y, Tang B, Wang L, Bao H, Lu Y, Guan C, Zhang L, Le M, Liu Z, Wu M. Machine-Learning-Driven Synthesis of Carbon Dots with Enhanced Quantum Yields. ACS NANO 2020; 14:14761-14768. [PMID: 32960048 DOI: 10.1021/acsnano.0c01899] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Knowing the correlation of reaction parameters in the preparation process of carbon dots (CDs) is essential for optimizing the synthesis strategy, exploring exotic properties, and exploiting potential applications. However, the integrated screening experimental data on the synthesis of CDs are huge and noisy. Machine learning (ML) has recently been successfully used for the screening of high-performance materials. Here, we demonstrate how ML-based techniques can offer insight into the successful prediction, optimization, and acceleration of CDs' synthesis process. A regression ML model on hydrothermal-synthesized CDs is established capable of revealing the relationship between various synthesis parameters and experimental outcomes as well as enhancing the process-related properties such as the fluorescent quantum yield (QY). CDs exhibiting a strong green emission with QY up to 39.3% are obtained through the combined ML guidance and experimental verification. The mass of precursors and the volume of alkaline catalysts are identified as the most important features in the synthesis of high-QY CDs by the trained ML model. The CDs are applied as an ultrasensitive fluorescence probe for monitoring the Fe3+ ion because of their superior optical behaviors. The probe exhibits the linear response to the Fe3+ ion with a wide concentration range (0-150 μM), and its detection limit is 0.039 μM. Our findings demonstrate the great capability of ML to guide the synthesis of high-quality CDs, accelerating the development of intelligent material.
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Affiliation(s)
- Yu Han
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, BaoShan District, Shanghai 200444, P.R. China
| | - Bijun Tang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Liang Wang
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, BaoShan District, Shanghai 200444, P.R. China
| | - Hong Bao
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, BaoShan District, Shanghai 200444, P.R. China
| | - Yuhao Lu
- School of Computer Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Cuntai Guan
- School of Computer Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Liang Zhang
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, BaoShan District, Shanghai 200444, P.R. China
| | - Mengying Le
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, BaoShan District, Shanghai 200444, P.R. China
| | - Zheng Liu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Minghong Wu
- Shanghai Applied Radiation Institute, Shanghai University, 333 Nanchen Road, BaoShan District, Shanghai 200444, P.R. China
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Junge MJ, Kordan MA, Chernick ET. Synthesis of Chiral Donor–Acceptor Dyes to Study Electron Transfer Across a Chiral Bridge. J Org Chem 2020; 85:13793-13807. [DOI: 10.1021/acs.joc.0c01914] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Marc J. Junge
- Institut für Organische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Mike A. Kordan
- Institut für Organische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Erin T. Chernick
- Department of Chemistry, University of Victoria, PO Box 1700 STN CSC Victoria, BC V8W 2Y2, Canada
- Institut für Organische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
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Costa JCS, Lima MAL, Mendes A, Santos LMNBF. The impact of phenyl–phenyl linkage on the thermodynamic, optical and morphological behavior of carbazol derivatives. RSC Adv 2020; 10:11766-11776. [PMID: 35496587 PMCID: PMC9050612 DOI: 10.1039/d0ra01518k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 03/11/2020] [Indexed: 12/26/2022] Open
Abstract
The impact of structural differentiation between phenylcarbazoles (PhC, mCP, CBP, TCB) and phenylamines (TPA, BDB, TPB, TDAB) on the phase equilibria, optical spectrum, band gap, and thin-film morphology is evaluated and discussed. The carbazolyl units lead to a lower electronic conjugation contributing to a wide band gap when compared with the diphenylamine analogs. The fusion and sublimation equilibria indicate that entropic contribution is the key factor for the distinguished melting behavior and solid-phase volatility between phenylcarbazole derivatives and phenylamine analogs. The molecular differentiation between the two classes of compounds is not reflected in the crystal packing and intermolecular interactions. However, compared with the diphenylamino groups, the incorporation of carbazolyl moieties contributes to a less flexible molecule. Moreover, the results evidence that intermolecular bonding disruption along the fusion transition is more extensive for phenylamine derivatives. Due to the asymmetric nonplanar structure, mCP is characterized by a ratio of {Tg/Tm ≈ 3/4} while the more symmetric CBP and TCB molecules display ratios closer to {Tg/Tm ≈ 2/3}. Vapor-deposited thin films of mCP, CBP, and TCB are amorphous and their morphology is highly dependent on the substrate roughness. The lower flexibility of nonplanar phenylcarbazoles induces the formation of a glassy state due to the harder packing mechanism leading to the lower ability of the crystallization process. The phenyl–phenyl linkage in N-phenylcarbazoles contributes to several optical, structural, thermodynamic and morphological changes.![]()
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Affiliation(s)
- José C. S. Costa
- CIQUP, Centro de Investigação em Química da Universidade do Porto
- Department of Chemistry and Biochemistry
- Faculty of Science
- University of Porto
- Portugal
| | - Marco A. L. Lima
- CIQUP, Centro de Investigação em Química da Universidade do Porto
- Department of Chemistry and Biochemistry
- Faculty of Science
- University of Porto
- Portugal
| | - Adélio Mendes
- LEPABE, Laboratory for Process Engineering, Environment, Biotechnology and Energy
- Faculty of Engineering
- University of Porto
- Portugal
| | - Luís M. N. B. F. Santos
- CIQUP, Centro de Investigação em Química da Universidade do Porto
- Department of Chemistry and Biochemistry
- Faculty of Science
- University of Porto
- Portugal
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Suryawanshi SB, Mahajan PG, Kolekar GB, Bodake AJ, Patil SR. Selective recognition of Cr (VI) ion as Cr
2
O
7
2−
in aqueous medium using CTAB‐capped anthracene‐based nanosensor: Application to real water sample analysis. J PHYS ORG CHEM 2018. [DOI: 10.1002/poc.3923] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sonali B. Suryawanshi
- Fluorescence Spectroscopy Laboratory, Department of ChemistryShivaji University Kolhapur India
- Department of ChemistryRajaram College Kolhapur India
| | - Prasad G. Mahajan
- Department of ChemistryKongju National University Gongju Republic of Korea
| | - Govind B. Kolekar
- Fluorescence Spectroscopy Laboratory, Department of ChemistryShivaji University Kolhapur India
| | | | - Shivajirao R. Patil
- Fluorescence Spectroscopy Laboratory, Department of ChemistryShivaji University Kolhapur India
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Vanjare BD, Mahajan PG, Hong SK, Lee KH. Discriminating Chemosensor for Detection of Fe3+
in Aqueous Media by Fluorescence Quenching Methodology. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11442] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Balasaheb D. Vanjare
- Department of Chemistry; Kongju National University; Gongju 32588 Republic of Korea
| | - Prasad G. Mahajan
- Department of Chemistry; Kongju National University; Gongju 32588 Republic of Korea
| | - Seong-Karp Hong
- Department. of Bio and Health Sciences; Mokwon University; Daejeon 35349 Republic of Korea
| | - Ki Hwan Lee
- Department of Chemistry; Kongju National University; Gongju 32588 Republic of Korea
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Yin J, Bing Q, Wang L, Wang G. Ultrasensitive and highly selective detection of Cu 2+ ions based on a new carbazole-Schiff. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 189:495-501. [PMID: 28846978 DOI: 10.1016/j.saa.2017.08.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 08/06/2017] [Accepted: 08/19/2017] [Indexed: 06/07/2023]
Abstract
A new chemosensor for Cu2+ based on Schiff base with high sensitivity and selectivity was designed and synthesized. The fluorescence intensity of the chemosensor in CH3CN solution was enhanced 160-fold after the addition of 10 equiv. Cu2+ over other metal ions. In addition, it also facilitates colorimetric detection for Cu2+ in CH3CN solution. The chemosensor displayed low detection limit and fast response time to Cu2+.
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Affiliation(s)
- Jun Yin
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, PR China
| | - Qijing Bing
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, PR China
| | - Lin Wang
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, PR China
| | - Guang Wang
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, PR China.
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FRET Between Riboflavin and 9-Anthraldehyde Based Fluorescent Organic Nanoparticles Possessing Antibacterial Activity. J Fluoresc 2017; 28:207-215. [DOI: 10.1007/s10895-017-2183-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 10/02/2017] [Indexed: 11/28/2022]
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