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Paul S, Bhattacharya A, Hazra N, Gayen K, Sen P, Banerjee A. Yellow-Emitting Carbon Dots for Selective Fluorescence Imaging of Lipid Droplets in Living Cells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8829-8836. [PMID: 35819238 DOI: 10.1021/acs.langmuir.2c00919] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This study shows a one-pot preparation of carbon dots by a solvothermal method in ethylene glycol. The carbon dots show yellow-colored fluorescence emission in water. The carbon dots showed distinct preference to be present in the hydrophobic environment which was evident from their efficient transfer from aqueous phase to organic phase. They were also found to locate themselves in the vesicle bilayer and micelle core. This inherent lipophilic character of these carbon dots has been successfully utilized for the selective imaging of lipid droplets inside the living cells. The selective imaging of lipid droplets was confirmed by similar staining patterns with other staining dyes and the starvation study.
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Affiliation(s)
- Subir Paul
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | | | - Niladri Hazra
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Kousik Gayen
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Prosenjit Sen
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Arindam Banerjee
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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2
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More VG, Nadimetla DN, Shaikh DB, Puyad AL, Bhosale SV, Bhosale SV. Naphthalenediimide‐Benzothiazole‐Based Chemodosimeter for Selective and Sensitive Chromogenic for Cyanide Ion. ChemistrySelect 2022. [DOI: 10.1002/slct.202201537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vishal G. More
- School of Chemical Sciences Goa University Taleigao Plateau Goa 403206 India
| | - Dinesh N. Nadimetla
- School of Chemical Sciences Goa University Taleigao Plateau Goa 403206 India
| | - Dada B. Shaikh
- Polymers and Functional Material Division CSIR-Indian Institute of Chemical Technology Hyderabad 500007 Telangana India
- Academy of Scientific and Innovative Research (AcSIR) Gaziabad 201002 Uttar Pradesh India
| | - Avinash L. Puyad
- School of Chemical Sciences Swami Ramanand Teerth Marathwada University Nanded 431606 Maharashtra India
| | - Sidhanath V. Bhosale
- Polymers and Functional Material Division CSIR-Indian Institute of Chemical Technology Hyderabad 500007 Telangana India
- Academy of Scientific and Innovative Research (AcSIR) Gaziabad 201002 Uttar Pradesh India
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Mocanu CS, Petre BA, Ion LD, Drochioiu G, Niculaua M, Stoica I, Homocianu M, Nita LE, Gradinaru VR. Structural Characterization of a New Collagen Biomimetic Octapeptide with Nanoscale Self‐assembly Potential: Experimental and Theoretical Approaches. Chempluschem 2021; 87:e202100462. [DOI: 10.1002/cplu.202100462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/15/2021] [Indexed: 11/09/2022]
Affiliation(s)
| | | | | | - Gabi Drochioiu
- Alexandru Ioan Cuza University of Iasi Chemistry ROMANIA
| | - Marius Niculaua
- Romanian Academy Iasi Branch: Academia Romana Filiala Iasi Research Center for Oenology ROMANIA
| | - Iuliana Stoica
- Romanian Academy Iasi Branch: Academia Romana Filiala Iasi Petru Poni Institute of Macromolecular Chemistry ROMANIA
| | - Mihaela Homocianu
- Romanian Academy Iasi Branch: Academia Romana Filiala Iasi Petru Poni Institute of Macromolecular Chemistry ROMANIA
| | - Loredana Elena Nita
- Romanian Academy Iasi Branch: Academia Romana Filiala Iasi Petru Poni Institute of Macromolecular Chemistry ROMANIA
| | - Vasile Robert Gradinaru
- Alexandru Ioan Cuza University: Universitatea Alexandru Ioan Cuza Chemistry Carol av, No 11 700506 Iasi ROMANIA
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Li Y, Baryshnikov GV, Xu C, Ågren H, Zhu L, Yi T, Zhao Y, Wu H. Photoinduced Radical Emission in a Coassembly System. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yiran Li
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 P. R. China
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200433 China
| | - Glib V. Baryshnikov
- Laboratory of Organic Electronics Department of Science and Technology Linköping University 60174 Norrköping Sweden
| | - Chenggang Xu
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 P. R. China
| | - Hans Ågren
- Department of Physics and Astronomy Uppsala University Box 516 75120 Uppsala Sweden
| | - Liangliang Zhu
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200433 China
| | - Tao Yi
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 P. R. China
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Hongwei Wu
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 P. R. China
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
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5
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Li Y, Baryshnikov GV, Xu C, Ågren H, Zhu L, Yi T, Zhao Y, Wu H. Photoinduced Radical Emission in a Coassembly System. Angew Chem Int Ed Engl 2021; 60:23842-23848. [PMID: 34480398 DOI: 10.1002/anie.202110405] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Indexed: 11/07/2022]
Abstract
Developing radical emission at ambient conditions is a challenging task since radical species are unstable in air. In the present work, we overcome this challenge by coassembling a series of tricarbonyl-substituted benzene molecules with polyvinyl alcohol (PVA). The strong hydrogen bonds between the guest dopants and the PVA host matrix protect the free radicals of carbonyl compounds after light irradiation, leading to strong solid state free radical emission. Changing temperature and peripheral functional groups of the tricarbonyl-substituted benzenes can influence the intensity of the radical emission. Quantum-chemical calculations predict that such free radical fluorescence originates from anti-Kasha D2 →D0 vertical emission by the anion radicals. The photoinduced radical emission by the tricarbonyl-substituted benzenes was successfully utilized for information encryption application.
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Affiliation(s)
- Yiran Li
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China.,State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Glib V Baryshnikov
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 60174, Norrköping, Sweden
| | - Chenggang Xu
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Hans Ågren
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden
| | - Liangliang Zhu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Tao Yi
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Hongwei Wu
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
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Gayen K, Paul S, Hazra S, Banerjee A. Solvent-Directed Transformation of the Self-assembly and Optical Property of a Peptide-Appended Core-Substituted Naphthelenediimide and Selective Detection of Nitrite Ions in an Aqueous Medium. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:9577-9587. [PMID: 34319747 DOI: 10.1021/acs.langmuir.1c01486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This study vividly displays the different self-assembling behavior and consequent tuning of the fluorescence property of a peptide-appended core-substituted naphthalenediimide (N1) in the aliphatic hydrocarbon solvents (n-hexane/n-decane/methyl cyclohexane) and in an aqueous medium within micelles. The N1 is highly fluorescent in the monomeric state and self-aggregates in a hydrocarbon solvent, exhibiting "H-type" or "face-to-face" stacking as indicated by a blue shift of absorption maxima in the UV-vis spectrum. In the H-aggregated state, the fluorescence emission of N1 changes to green from the yellow emission obtained in the monomeric state. In the presence of a micelle-forming surfactant, cetyl trimethylammonium bromide (CTAB), the N1 is found to be dispersed in a water medium. Interestingly, upon encapsulation of N1 into the micelle, the molecule alters its self-assembling pattern and optical property compared to its behavior in the hydrocarbon solvent. The N1 exhibits "edge-to-edge" stacking or J aggregates inside the micelle as indicated by the UV-vis spectroscopic study, which shows a red shift of the absorption maxima compared to that in the monomeric state. The fluorescence emission also differs in the water medium with the NDI derivative exhibiting red emission. FT-IR studies reveal that all amide NHs of N1 are hydrogen-bonded within the micelle (in the J-aggregated state), whereas both non-bonding and hydrogen-bonding amide NHs are present in the H-aggregated state. This is a wonderful example of solvent-mediated transformation of the aggregation pattern (from H to J) and solvatochromism of emission over a wide range from green in the H-aggregated state to yellow in the monomeric state and orangish-red in the J-aggregated state. Moreover, the J aggregate has been successfully utilized for selective and sensitive detection of nitrite ions in water even in the presence of other common anions (NO3-, SO42-, HSO4-, CO32-, and Cl-).
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Affiliation(s)
- Kousik Gayen
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Subir Paul
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Soumyajit Hazra
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Arindam Banerjee
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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Grover G, Weiss RG. Luminescent Behavior of Gels and Sols Comprised of Molecular Gelators. Gels 2021; 7:19. [PMID: 33671130 PMCID: PMC8005951 DOI: 10.3390/gels7010019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/08/2021] [Accepted: 02/11/2021] [Indexed: 12/05/2022] Open
Abstract
We present a brief review of some important conceptual and practical aspects for the design and properties of molecular luminescent gelators and their gels. Topics considered include structural and dynamic aspects of the gels, including factors important to their ability to emit radiation from electronically excited states.
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Affiliation(s)
| | - Richard G. Weiss
- Department of Chemistry, Institute for Soft Matter Synthesis and Metrology, Georgetown University, Washington, DC 20057, USA;
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Gayen K, Nandi N, Das KS, Hermida-Merino D, Hamley IW, Banerjee A. The aging effect on the enhancement of thermal stability, mechanical stiffness and fluorescence properties of histidine-appended naphthalenediimide based two-component hydrogels. SOFT MATTER 2020; 16:10106-10114. [PMID: 32716462 DOI: 10.1039/d0sm00468e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A histidine attached naphthalenediimide (NDI)-containing amphiphilic molecule (NDIP) self-assembles into nanotubes in aqueous solution at pH 6.6 as revealed by high-resolution transmission electron microscopy studies. This histidine-appended NDI forms a two-component hydrogel in the presence of tartaric acid at a molar ratio of 1 : 2. A morphological transformation was observed from a nanotube structure in the non-gel aggregated state of histidine appended NDI to interconnected cross-linked nanofibers of the two-component hydrogel in the presence of tartaric acid. Interestingly, the gel exhibits an unusual behavior upon aging compared to the fresh gel. It is found that the thermal stability and gel stiffness increase very significantly upon aging. Another important feature noted is that the very weak fluorescence of the fresh gel is transformed into bright greenish fluorescence upon aging. These results suggest that intermolecular interactions among the gelator molecules and tartaric acid in the gel phase slowly increase with time to form a mechanically very stiff and thermally robust gel.
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Affiliation(s)
- Kousik Gayen
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700032, India.
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Kalita A, Upadhyaya S, Sen Sarma N. Salicylic Acid Appended Naphthalene Diimide Organic Linkers: A Systematic Investigation towards Electronic Aspects. ChemistrySelect 2020. [DOI: 10.1002/slct.202002645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Anamika Kalita
- Physical Sciences Division Institute of Advanced Study in Science and Technology, Paschim Boragaon Guwahati 781035 Assam India
| | - Samiran Upadhyaya
- Physical Sciences Division Institute of Advanced Study in Science and Technology, Paschim Boragaon Guwahati 781035 Assam India
| | - Neelotpal Sen Sarma
- Physical Sciences Division Institute of Advanced Study in Science and Technology, Paschim Boragaon Guwahati 781035 Assam India
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Pham AT, Matile S. Peptide Stapling with Anion-π Catalysts. Chem Asian J 2020; 15:1562-1566. [PMID: 32311232 DOI: 10.1002/asia.202000309] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/01/2020] [Indexed: 12/12/2022]
Abstract
We report design, synthesis and evaluation of a series of naphthalenediimides (NDIs) that are bridged with short peptides. Reminiscent of peptide stapling technologies, the macrocycles are conveniently accessible by a chromogenic nucleophilic aromatic substitution of two bromides in the NDI core with two thiols from cysteine sidechains. The dimension of core-bridged NDIs matches that of one turn of an α helix. NDI-stapled peptides exist as two, often separable atropisomers. Introduction of tertiary amine bases in amino-acid sidechains above the π-acidic NDI surface affords operational anion-π catalysts. According to an enolate chemistry benchmark reaction, anion-π catalysis next to peptides occurs with record chemoselectivity but weak enantioselectivity. Catalytic activity drops with increasing distance of the amine base to the NDI surface, looser homocysteine bridges, mismatched, shortened and elongated α-helix turns, and acyclic peptide controls. Elongation of isolated turns into short α helices significantly increases activity. This increase is consistent with remote control of anion-π catalysis from the α-helix macrodipole.
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Affiliation(s)
- Anh-Tuan Pham
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Stefan Matile
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
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Das BK, Pramanik B, Chowdhuri S, Scherman OA, Das D. Light-triggered syneresis of a water insoluble peptide-hydrogel effectively removes small molecule waste contaminants. Chem Commun (Camb) 2020; 56:3393-3396. [PMID: 32100740 DOI: 10.1039/c9cc09225k] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A short peptide based hydrogel exhibits aqueous insolubility, thixotropy and efficient light induced syneresis. Upon irradiation with UV light, the hydrogel shrinks and expells ∼50% of the solvent. Syneresis is caused by light-triggered trans-cis isomerisation of an azobenzene moiety in the peptide derivative. This expulsion of solvent can be effectively exploited in the removal of low molecular weight contaminants in water.
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Affiliation(s)
- Basab Kanti Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
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