1
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Fan L, Liu K, Yang ZY. A novel and reversible multifunction probe for Al3+and F− by fluorogenic and colorimetric method. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113911] [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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2
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Sebastian A, Prasad E. Cyanide Sensing in Water Using a Copper Metallogel through "Turn-on" Fluorescence. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:10537-10547. [PMID: 32841041 DOI: 10.1021/acs.langmuir.0c01803] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The development of fluorescent probes for selective detection of cyanide has gained considerable attention over the past two decades due to benefits like high selectivity as well as sensitivity, fast response, visual output, accurate quantification, and a simplified sample preparation procedure. However, the propensity of supramolecular gels toward fluorescence sensing of cyanide in aqueous medium is not well explored until now. Herein, we report the design and synthesis of a novel copper based metallogel capable of sensing cyanide in water by fluorescence "turn on". Toward this, a terpyridine attached poly(aryl ether) dendrone derivative (G1) is synthesized which forms gel and exhibits Aggregation Induced Emission (AIE). The addition and diffusion of copper ions to the gel resulted in the formation of a nonluminescent copper metallogel (CuG). The copper metallogel could selectively sense cyanide in water by a fluorescence "turn-on" signal due to the regeneration of the AIE active gel. The mechanistic pathways of the sensing have been studied, and the detection limit for sensing was found to be as low as 1.09 μM. A thin film of CuG was prepared by casting the gel and used as a test strip for the visual detection of cyanide in water.
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Affiliation(s)
- Alphy Sebastian
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Edamana Prasad
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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Pati C, Ghosh S, Ghosh K. Dipyrromethane Decorated Gelator in Anion Recognition and Solvent‐Dependent Aggregation‐Induced Emission. ChemistrySelect 2020. [DOI: 10.1002/slct.202002763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Chiranjit Pati
- Department of ChemistryUniversity of Kalyani Kalyani 741235 India
| | - Sumit Ghosh
- Department of ChemistryUniversity of Kalyani Kalyani 741235 India
| | - Kumaresh Ghosh
- Department of ChemistryUniversity of Kalyani Kalyani 741235 India
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Shimomoto H, Hohsaki R, Hiramatsu D, Itoh T, Ihara E. Pd-Initiated Polymerization of Dendron-Containing Diazoacetates to Afford Dendronized Poly(substituted methylene)s with Narrow Molecular Weight Distribution and Its Application to Synthesis of pH-Responsive Dendronized Polymers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01029] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Hiroaki Shimomoto
- Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Ryo Hohsaki
- Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Daisuke Hiramatsu
- Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Tomomichi Itoh
- Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Eiji Ihara
- Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan
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5
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Development of a sensitive and selective fluorescent probe for Zn2+ based on naphthyridine Schiff base. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.02.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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Kannan R, Muthuvijayan V, Prasad E. In vitro study of a glucose attached poly(aryl ether) dendron based gel as a drug carrier for a local anaesthetic. NEW J CHEM 2017. [DOI: 10.1039/c7nj01420a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A poly(aryl ether) dendron based gelator as an efficient transdermal drug carrier for the controlled release of prilocaine hydrochloride.
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Affiliation(s)
- Ramya Kannan
- Department of Chemistry
- Indian Institute of Technology
- Chennai
- India
- Department of Biotechnology
| | - Vignesh Muthuvijayan
- Department of Biotechnology
- Bhupat and Jyoti Mehta School of Biosciences
- Indian Institute of Technology
- Chennai
- India
| | - Edamana Prasad
- Department of Chemistry
- Indian Institute of Technology
- Chennai
- India
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Vidhya Lakshmi N, Madhu Babu T, Prasad E. Synthesis of multi-functional materials through self-assembly of N-alkyl phenothiazine linked poly(aryl ether) dendrons. Chem Commun (Camb) 2016; 52:617-20. [DOI: 10.1039/c5cc06614j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multi-functional materials developed from low molecular weight dendron gelators for phase selective gelation, a hydrophobic surface and invisible ink-gel formation.
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Affiliation(s)
| | - Thunga Madhu Babu
- Department of Chemistry, Indian Institute of Technology Madras (IITM)
- Chennai
- India
| | - Edamana Prasad
- Department of Chemistry, Indian Institute of Technology Madras (IITM)
- Chennai
- India
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8
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Chen H, Feng Y, Deng GJ, Liu ZX, He YM, Fan QH. Fluorescent Dendritic Organogels Based on 2-(2′-Hydroxyphenyl)benzoxazole: Emission Enhancement and Multiple Stimuli-Responsive Properties. Chemistry 2015; 21:11018-28. [DOI: 10.1002/chem.201500849] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Indexed: 12/27/2022]
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9
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Babu SS, Praveen VK, Kartha KK, Mahesh S, Ajayaghosh A. Effect of the Bulkiness of the End Functional Amide Groups on the Optical, Gelation, and Morphological Properties of Oligo(p-phenylenevinylene) π-Gelators. Chem Asian J 2014; 9:1830-40. [DOI: 10.1002/asia.201402235] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Indexed: 01/09/2023]
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10
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Lakshmi NV, Mandal D, Ghosh S, Prasad E. Multi-Stimuli-Responsive Organometallic Gels Based on Ferrocene-Linked Poly(Aryl Ether) Dendrons: Reversible Redox Switching and Pb2+-Ion Sensing. Chemistry 2014; 20:9002-11. [DOI: 10.1002/chem.201400241] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Indexed: 01/11/2023]
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Feng Y, He YM, Fan QH. Supramolecular Organogels Based on Dendrons and Dendrimers. Chem Asian J 2014; 9:1724-50. [DOI: 10.1002/asia.201400043] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Indexed: 01/04/2023]
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Babu SS, Praveen VK, Ajayaghosh A. Functional π-gelators and their applications. Chem Rev 2014; 114:1973-2129. [PMID: 24400783 DOI: 10.1021/cr400195e] [Citation(s) in RCA: 1220] [Impact Index Per Article: 122.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Sukumaran Santhosh Babu
- Photosciences and Photonics Group, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Trivandrum 695019, India
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Rajamalli P, Malakar P, Atta S, Prasad E. Metal induced gelation from pyridine cored poly(aryl ether) dendrons with in situ synthesis and stabilization of hybrid hydrogel composites. Chem Commun (Camb) 2014; 50:11023-5. [DOI: 10.1039/c4cc04231j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Metal induced gel formation from pyridine cored poly(aryl ether) dendrons has been achieved. In addition, the gel is successfully utilized for in situ synthesis and stabilization of silver nanoparticles (AgNPs), which form an unprecedented, well-organized arrangement on the nanofibers.
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Affiliation(s)
- P. Rajamalli
- Department of Chemistry
- Indian Institute of Technology Madras (IITM)
- Chennai, India
| | - Partha Malakar
- Department of Chemistry
- Indian Institute of Technology Madras (IITM)
- Chennai, India
| | - Supriya Atta
- Department of Chemistry
- Indian Institute of Technology Madras (IITM)
- Chennai, India
| | - Edamana Prasad
- Department of Chemistry
- Indian Institute of Technology Madras (IITM)
- Chennai, India
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Liu ZX, Feng Y, Zhao ZY, Yan ZC, He YM, Luo XJ, Liu CY, Fan QH. A New Class of Dendritic Metallogels with Multiple Stimuli-Responsiveness and as Templates for the In Situ Synthesis of Silver Nanoparticles. Chemistry 2013; 20:533-41. [DOI: 10.1002/chem.201302780] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Indexed: 11/05/2022]
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15
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Transformation from a heat-set organogel to a room-temperature organogel induced by alcohols. J INCL PHENOM MACRO 2013. [DOI: 10.1007/s10847-013-0335-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Rajamalli P, Prasad E. Tunable morphology and mesophase formation by naphthalene-containing poly(aryl ether) dendron-based low-molecular-weight fluorescent gels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:1609-1617. [PMID: 23297831 DOI: 10.1021/la304230m] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Novel poly(aryl ether) dendron-based low-molecular-weight organogelaters (LMWG) containing naphthalene units at the core have been synthesized, and the self-assembly of the system has been examined in a variety of solvents and solvent mixtures. The compounds readily form gels with attractive critical gel concentration values associated with gelation-induced enhanced emission (GIEE). In addition to the remarkable properties of the previously reported anthracene and pyrene analogues (Rajamalli, P.; Prasad, E. Org. Lett.2011, 13, 3714 and Rajamalli, P.; Prasad, E. Soft Matter2012, 8, 8896), the self-assembled systems exhibit distinctly different structure-property relationships. Unlike the reported ones, the present system forms sheetlike morphology in nonpolar solvent mixtures, giant vesicles in polar solvent mixtures, and lamellar or hexagonal columnar phases in single solvents. The unique properties of the self-assembled systems, which were analyzed through electron microscopic (SEM, TEM, AFM) and spectroscopic techniques (POM, fluorescence), are attributed to the replacement of anthracene/pyrene units by naphthalene units. The present work unravels the subtle role of minute structural change in altering the properties of LMWGs based on poly(aryl ether) dendrons.
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Affiliation(s)
- P Rajamalli
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
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Liu J, Feng Y, Liu ZX, Yan ZC, He YM, Liu CY, Fan QH. N-Boc-Protected 1,2-Diphenylethylenediamine-Based Dendritic Organogels with Multiple-Stimulus-Responsive Properties. Chem Asian J 2013; 8:572-81. [DOI: 10.1002/asia.201201019] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Indexed: 11/08/2022]
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18
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Rajamalli P, Sheet PS, Prasad E. Glucose-cored poly(aryl ether) dendron based low molecular weight gels: pH controlled morphology and hybrid hydrogel formation. Chem Commun (Camb) 2013; 49:6758-60. [DOI: 10.1039/c3cc43391a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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19
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Rajamalli P, Atta S, Maity S, Prasad E. Supramolecular design for two-component hydrogels with intrinsic emission in the visible region. Chem Commun (Camb) 2013; 49:1744-6. [DOI: 10.1039/c3cc38419e] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Poly(benzyl ether) dendrons without conventional gelation motifs as a new kind of effective organogelators. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s11434-012-5479-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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Rajamalli P, Prasad E. Low Molecular Weight Fluorescent Organogel for Fluoride Ion Detection. Org Lett 2011; 13:3714-7. [DOI: 10.1021/ol201325j] [Citation(s) in RCA: 154] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- P. Rajamalli
- Department of Chemistry, Indian Institute of Technology Madras (IITM), Chennai 600 036, India
| | - Edamana Prasad
- Department of Chemistry, Indian Institute of Technology Madras (IITM), Chennai 600 036, India
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