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Uranga-Barandiaran O, Catherin M, Zaborova E, D'Aléo A, Fages F, Castet F, Casanova D. Optical properties of quadrupolar and bi-quadrupolar dyes: intra and inter chromophoric interactions. Phys Chem Chem Phys 2018; 20:24623-24632. [PMID: 30238104 DOI: 10.1039/c8cp05048a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In this work we present the synthesis, characterization and theoretical investigation of three boron-difluoride-curcuminoid derivatives and their covalent homodimers chemically linked through a polymethylenic chain. Low-lying electronic excited states and photophysical properties of the monomeric species have been described as the convolution of different donor-acceptor intramolecular excitations. Covalent dimers in solution can present open or folded structural conformations. Analysis of absorption profiles and computational results allow to identify the factors that control the relative stability of the two forms and rationalize its dependence with the solvent polarity. Interestingly, the strong electronic coupling in the folded forms results in low-lying excitations with sizable mixings of intra- and inter-chromophoric contributions, which cannot be described by means of the Kasha model of interacting chromophores. Our study demonstrates how decomposition of the computed excitations in terms of diabatic states can be extremely valuable in order to identify and quantify the nature of electronic transitions in the presence of several electron donor and acceptor fragments.
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Chhatre S, Ichake A, Harpale K, Patil S, Deshpande A, More M, Wadgaonkar PP. Phenazine-containing poly(phenylenevinylene): a new polymer with impressive field emission properties. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-017-1428-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Shinde S, Sartucci JL, Jones DK, Gavvalapalli N. Dynamic π-Conjugated Polymer Ionic Networks. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01896] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shekhar Shinde
- Department of Chemistry and
Institute for Soft Matter Synthesis and Metrology, Georgetown University, Washington, D.C. 20057, United States
| | - Jenna L. Sartucci
- Department of Chemistry and
Institute for Soft Matter Synthesis and Metrology, Georgetown University, Washington, D.C. 20057, United States
| | - Dorothy K. Jones
- Department of Chemistry and
Institute for Soft Matter Synthesis and Metrology, Georgetown University, Washington, D.C. 20057, United States
| | - Nagarjuna Gavvalapalli
- Department of Chemistry and
Institute for Soft Matter Synthesis and Metrology, Georgetown University, Washington, D.C. 20057, United States
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Makkad SK, Asha SK. π-Conjugated Chromophore Incorporated Polystyrene Nanobeads as Single Optical Agent for Three-Channel Fluorescent Probe in Bioimaging Application. ACS Biomater Sci Eng 2017; 3:1788-1798. [PMID: 33429659 DOI: 10.1021/acsbiomaterials.7b00259] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Fluorescent polystyrene (PS) nanobeads in the size range ∼70-120 nm incorporating perylene bisimide (PBI-PS) and/or oligo(p-phenylenevinylene) (OPV-PS) was developed by miniemulsion polymerization technique. A dye loading content (DLC) of <3% was sufficient to impart high fluorescence emission capability to the PS beads. OPV-PS exhibited emission in the range 400-550 nm with peak emission at 450 nm (λex = 350 nm; ϕFL = 26%); PBI-PS showed emission from 520-650 nm with peak emission at 545 nm (λex = 490 nm; ϕFL = 9.7%) in 1× PBS buffer, whereas OPV(PBI)-PS nanobeads incorporating both the fluorophores exhibited multicolor emission capabilities (λex from 350 to 490 nm). The nanoparticles were characterized by field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and dynamic light scattering (DLS) for size and zeta potential for surface charge. For bioimaging applications, the PS nanoparticles were incubated with HeLa cells. Cell viability analysis involving HeLa cells showed more than 90% cell viability confirming the biocompatibility of the PS beads. The cellular uptake of the nanoparticles was confirmed by flow cytometry analysis and confocal laser scanning microscopy (CLSM) images. The subcellular localization of the nanoparticles in the cytoplasm could be precisely established by their simultaneous multicolor emission. The PS-based single optical agent presented here that can function as three-channel fluorescent probe to meet the requirements for multicolor bioimaging is advantageous.
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Affiliation(s)
- Sarabjot Kaur Makkad
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.,Academy of Scientific and Innovative Research, New Delhi 110020, India
| | - S K Asha
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.,Academy of Scientific and Innovative Research, New Delhi 110020, India
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Samanta SK, Scherf U. Cationic Main-Chain Polyelectrolytes with Pyridinium-Basedp-Phenylenevinylene Units and Their Aggregation-Induced Gelation. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600374] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Suman Kalyan Samanta
- Macromolecular Chemistry Group and Institute for Polymer Technology; Wuppertal University; Gauss-Strasse 20 42119 Wuppertal Germany
| | - Ullrich Scherf
- Macromolecular Chemistry Group and Institute for Polymer Technology; Wuppertal University; Gauss-Strasse 20 42119 Wuppertal Germany
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Narasimha K, Jayakannan M. Color-Tunable Amphiphilic Segmented π-Conjugated Polymer Nano-Assemblies and Their Bioimaging in Cancer Cells. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00660] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Karnati Narasimha
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi
Bhabha Road, Pune 411008, Maharashtra India
| | - Manickam Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi
Bhabha Road, Pune 411008, Maharashtra India
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Kulkarni B, Surnar B, Jayakannan M. Dual Functional Nanocarrier for Cellular Imaging and Drug Delivery in Cancer Cells Based on π-Conjugated Core and Biodegradable Polymer Arms. Biomacromolecules 2016; 17:1004-16. [DOI: 10.1021/acs.biomac.5b01654] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bhagyashree Kulkarni
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha
Road, Pune, 411008 Maharashtra, India
| | - Bapurao Surnar
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha
Road, Pune, 411008 Maharashtra, India
| | - Manickam Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha
Road, Pune, 411008 Maharashtra, India
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8
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Pang X, Xie D, Ge X, Li Y, Zhen X, Yu X. Switchable sol-gel transition controlled by ultrasound and body temperature. Supramol Chem 2015. [DOI: 10.1080/10610278.2015.1102262] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Xuelei Pang
- Hebei Research Center of Pharmaceutical and Chemical Engineering, and College of Science, Hebei University of Science and Technology, Shijiazhuang, P.R. China
| | - Dongyan Xie
- Hebei Research Center of Pharmaceutical and Chemical Engineering, and College of Science, Hebei University of Science and Technology, Shijiazhuang, P.R. China
| | - Xiaoting Ge
- Hebei Research Center of Pharmaceutical and Chemical Engineering, and College of Science, Hebei University of Science and Technology, Shijiazhuang, P.R. China
| | - Yajuan Li
- Hebei Research Center of Pharmaceutical and Chemical Engineering, and College of Science, Hebei University of Science and Technology, Shijiazhuang, P.R. China
| | - Xiaoli Zhen
- Hebei Research Center of Pharmaceutical and Chemical Engineering, and College of Science, Hebei University of Science and Technology, Shijiazhuang, P.R. China
| | - Xudong Yu
- Hebei Research Center of Pharmaceutical and Chemical Engineering, and College of Science, Hebei University of Science and Technology, Shijiazhuang, P.R. China
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Goel M, Narasimha K, Jayakannan M. Direct Evidence for Secondary Interactions in Planar and Nonplanar Aromatic π-Conjugates and Their Photophysical Characteristics in Solid-State Assemblies. J Phys Chem B 2015; 119:5102-12. [DOI: 10.1021/acs.jpcb.5b01956] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mahima Goel
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha
Road, Pune 411008, Maharashtra, India
| | - Karnati Narasimha
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha
Road, Pune 411008, Maharashtra, India
| | - Manickam Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha
Road, Pune 411008, Maharashtra, India
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10
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Xue P, Wang P, Yao B, Sun J, Gong P, Zhang Z, Lu R. Photocurrent generation of nanofibers constructed using a complex of a gelator and a fullerene derivative. RSC Adv 2015. [DOI: 10.1039/c5ra15236d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two-component xerogel film constructed by a carboxylic acid derivative and fullerene derivative could generate large photocurrent under light irradiation.
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Affiliation(s)
- Pengchong Xue
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- PR China
| | - Panpan Wang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- PR China
| | - Boqi Yao
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- PR China
| | - Jiabao Sun
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- PR China
| | - Peng Gong
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- PR China
| | - Zhenqi Zhang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- PR China
| | - Ran Lu
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- PR China
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Vazhayal L, Kumar Sasidharan N, Talasila S, Kumar DBS, Solaiappan A. Supramolecular association of 2D alumino-siloxane aquagel building blocks to 3D porous cages and its efficacy for topical and injectable delivery of fluconazole, an antifungal drug. J Mater Chem B 2015; 3:5978-5990. [DOI: 10.1039/c5tb00625b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fascinating 2D architecture of an alumino-siloxane gel self-assembled into a well-defined 3D porous aquagel cage. It is identified to be an excellently mechanically stable, injectable and non-cytotoxic medium for drug delivery applications.
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Affiliation(s)
- Linsha Vazhayal
- Functional Materials Section
- Materials Science and Technology Division
- Council of Scientific and Industrial Research-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram-695019
- India
| | - Nishanth Kumar Sasidharan
- Agroprocessing and Natural Products Division
- Council of Scientific and Industrial Research-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram-695019
- India
| | - Sindhoor Talasila
- K. M. College of Pharmacy
- Department of Pharmaceutics
- Madurai-625107
- India
| | - Dileep B. S. Kumar
- Agroprocessing and Natural Products Division
- Council of Scientific and Industrial Research-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram-695019
- India
| | - Ananthakumar Solaiappan
- Functional Materials Section
- Materials Science and Technology Division
- Council of Scientific and Industrial Research-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram-695019
- India
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