1
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Ceper T, Costabel D, Kowalczyk D, Peneva K, Schacher FH. Noble Metal-Free Light-Driven Hydrogen Evolution Catalysis in Polyampholytic Hydrogel Networks. ACS Appl Mater Interfaces 2024. [PMID: 38700504 DOI: 10.1021/acsami.4c04045] [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] [Indexed: 05/05/2024]
Abstract
Future technologies to harness solar energy and to convert this into chemical energy strongly rely on straightforward approaches to prepare versatile soft matter scaffolds for the immobilization of catalysts and sensitizers in a defined environment. In addition, particularly for light-driven hydrogen evolution, a transition to noble metal-free photosensitizers and catalysts is urgently required. Herein, we report a fully organic light-harvesting soft matter network based on a polyampholyte hydrogel where both photosensitizer (a perylene monoimide derivative) and a H2 evolution catalyst ([Mo3S13]2-) are electrostatically incorporated. The resulting material exhibits sustained visible-light-driven H2 evolution in aqueous ascorbic acid solution, even at rather low loadings of photosensitizer (0.4%) and catalyst (120 ppm). In addition, we provide initial insights into the long-term stability of the hybrid hydrogel. We believe that these results pave the way for a generalized route toward the incorporation of noble metal-free light-driven catalysis in soft matter networks.
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Affiliation(s)
- Tolga Ceper
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, D-07743 Jena, Germany
- Center for Energy and Environmental Chemistry Jena (CEEC), Friedrich Schiller University Jena, Philosophenweg 7a, 07743 Jena, Germany
| | - Daniel Costabel
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, D-07743 Jena, Germany
- Center for Energy and Environmental Chemistry Jena (CEEC), Friedrich Schiller University Jena, Philosophenweg 7a, 07743 Jena, Germany
| | - Daniel Kowalczyk
- Institute of Chemical Engineering, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, D-07743 Jena, Germany
- Center for Energy and Environmental Chemistry Jena (CEEC), Friedrich Schiller University Jena, Philosophenweg 7a, 07743 Jena, Germany
| | - Felix H Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, D-07743 Jena, Germany
- Center for Energy and Environmental Chemistry Jena (CEEC), Friedrich Schiller University Jena, Philosophenweg 7a, 07743 Jena, Germany
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2
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Manhas P, Cokca C, Sharma R, Peneva K, Wangoo N, Sharma D, Sharma RK. Chitosan functionalized doxorubicin loaded poly(methacrylamide) based copolymeric nanoparticles for enhanced cellular internalization and in vitro anticancer evaluation. Int J Biol Macromol 2024; 259:129242. [PMID: 38199540 DOI: 10.1016/j.ijbiomac.2024.129242] [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: 05/03/2023] [Revised: 12/03/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
Doxorubicin (Dox), a chemotherapeutic agent, encounters challenges such as a short half-life, dose-dependent toxicity, and low solubility. In this context, the present study involved the fabrication of N-(2-hydroxypropyl)methacrylamide (HPMA) and N-(3-aminopropyl)methacrylamide (APMA) bearing P(HPMA-s-APMA) copolymeric nanoparticles (P(HPMA-s-APMA) NPs) and their investigation for efficient delivery of Dox. Furthermore, the synthesized nanoparticles (NPs) were coated with chitosan (Cht) to generate positively charged nanoformulations. The prepared formulations were evaluated for particle size, morphology, surface charge analysis, percentage encapsulation efficiency (EE%), and drug release studies. The anticancer activity of Cht-P(HPMA-s-APMA)-Dox NPs was assessed in the HeLa cancer cell line. The prepared P(HPMA-s-APMA)-Dox NPs exhibited an average particle size of 240-250 nm. Chitosan decorated P(HPMA-s-APMA)-Dox NPs displayed a significant increase in particle size, and the zeta potential shifted from negative to positive. The EE% for Cht-P(HPMA-s-APMA)-Dox NPs was calculated to be 68.06 %. The drug release studies revealed a rapid release of drug from Cht-P(HPMA-s-APMA)-Dox NPs at pH 4.8 than pH 7.4, demonstrating the pH-responsiveness of nanoformulation. Furthermore, the cell viability assay and internalization studies revealed that Cht-P(HPMA-s-APMA)-Dox NPs had a high cytotoxic response and significant cellular uptake. Hence, the Cht-P(HPMA-s-APMA)-Dox NPs appeared to be a suitable nanocarrier for effective, and safe chemotherapy.
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Affiliation(s)
- Priya Manhas
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Sector-14, Chandigarh 160014, India
| | - Ceren Cokca
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany; Jena Center of Soft Matter, Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Rohit Sharma
- Centre for Stem Cell and Tissue Engineering, Panjab University, Chandigarh 160014, India
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany; Jena Center of Soft Matter, Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Nishima Wangoo
- Department of Applied Sciences, University Institute of Engineering & Technology (U.I.E.T.), Panjab University, Sector-25, Chandigarh 160014, India
| | - Deepika Sharma
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Sector-14, Chandigarh 160014, India
| | - Rohit K Sharma
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Sector-14, Chandigarh 160014, India.
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3
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Costabel D, Nabiyan A, Chettri A, Jacobi F, Heiland M, Guthmuller J, Kupfer S, Wächtler M, Dietzek-Ivanšić B, Streb C, Schacher FH, Peneva K. Diiodo-BODIPY Sensitizing of the [Mo 3S 13] 2- Cluster for Noble-Metal-Free Visible-Light-Driven Hydrogen Evolution within a Polyampholytic Matrix. ACS Appl Mater Interfaces 2023; 15:20833-20842. [PMID: 37026740 DOI: 10.1021/acsami.2c18529] [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] [Indexed: 05/05/2023]
Abstract
We report on a photocatalytic setup that utilizes the organic photosensitizer (PS) diiodo-BODIPY and the non-precious-metal-based hydrogen evolution reaction (HER) catalyst (NH4)2[Mo3S13] together with a polyampholytic unimolecular matrix poly(dehydroalanine)-graft-poly(ethylene glycol) (PDha-g-PEG) in aqueous media. The system shows exceptionally high performance with turnover numbers (TON > 7300) and turnover frequencies (TOF > 450 h-1) that are typical for noble-metal-containing systems. Excited-state absorption spectra reveal the formation of a long-lived triplet state of the PS in both aqueous and organic media. The system is a blueprint for developing noble-metal-free HER in water. Component optimization, e.g., by modification of the meso substituent of the PS and the composition of the HER catalyst, is further possible.
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Affiliation(s)
- Daniel Costabel
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Afshin Nabiyan
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Avinash Chettri
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology Jena, Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Franz Jacobi
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Magdalena Heiland
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Julien Guthmuller
- Institute of Physics and Applied Computer Science, Faculty of Applied Physics and Mathematics, Gdansk University of Technology, 80233 Gdańsk, Poland
| | - Stephan Kupfer
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Maria Wächtler
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology Jena, Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Benjamin Dietzek-Ivanšić
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology Jena, Albert-Einstein-Straße 9, 07745 Jena, Germany
- Center for Energy and Environmental Chemistry and Jena Center of Soft Matter, Friedrich Schiller University Jena, Philosophenweg 7a, 07743 Jena, Germany
| | - Carsten Streb
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Felix H Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
- Center for Energy and Environmental Chemistry and Jena Center of Soft Matter, Friedrich Schiller University Jena, Philosophenweg 7a, 07743 Jena, Germany
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
- Center for Energy and Environmental Chemistry and Jena Center of Soft Matter, Friedrich Schiller University Jena, Philosophenweg 7a, 07743 Jena, Germany
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4
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Brückmann J, Müller C, Friedländer I, Mengele AK, Peneva K, Dietzek‐Ivanšić B, Rau S. Photocatalytic Reduction of Nicotinamide Co-factor by Perylene Sensitized Rh III Complexes. Chemistry 2022; 28:e202201931. [PMID: 35920047 PMCID: PMC9825842 DOI: 10.1002/chem.202201931] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Indexed: 01/11/2023]
Abstract
The ambitious goal of artificial photosynthesis is to develop active systems that mimic nature and use light to split water into hydrogen and oxygen. Intramolecular design concepts are particularly promising. Herein, we firstly present an intramolecular photocatalyst integrating a perylene-based light-harvesting moiety and a catalytic rhodium center (RhIII phenPer). The excited-state dynamics were investigated by means of steady-state and time-resolved absorption and emission spectroscopy. The studies reveal that photoexcitation of RhIII phenPer yields the formation of a charge-separated intermediate, namely RhII phenPer⋅+ , that results in a catalytically active species in the presence of protons.
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Affiliation(s)
- Jannik Brückmann
- Institute of Inorganic Chemistry IUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Carolin Müller
- Institute of Physical ChemistryFriedrich Schiller University JenaHelmholtzweg 407743JenaGermany,Research Department Functional InterfacesLeibniz Institute of Photonic Technology JenaAlbert-Einstein-Straße 907745JenaGermany
| | - Ilse Friedländer
- Institute of Physical ChemistryFriedrich Schiller University JenaHelmholtzweg 407743JenaGermany
| | - Alexander K. Mengele
- Institute of Inorganic Chemistry IUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular ChemistryFriedrich Schiller University JenaLessingstraße 807743JenaGermany,Center for Energy and Environmental Chemistry Jena (CEEC Jena)Friedrich Schiller University JenaPhilosophenweg 7a07743JenaGermany
| | - Benjamin Dietzek‐Ivanšić
- Institute of Physical ChemistryFriedrich Schiller University JenaHelmholtzweg 407743JenaGermany,Research Department Functional InterfacesLeibniz Institute of Photonic Technology JenaAlbert-Einstein-Straße 907745JenaGermany,Center for Energy and Environmental Chemistry Jena (CEEC Jena)Friedrich Schiller University JenaPhilosophenweg 7a07743JenaGermany
| | - Sven Rau
- Institute of Inorganic Chemistry IUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
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5
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Soni GK, Wangoo N, Cokca C, Peneva K, Sharma RK. Ultrasensitive aptasensor for arsenic detection using quantum dots and guanylated Poly(methacrylamide). Anal Chim Acta 2022; 1209:339854. [DOI: 10.1016/j.aca.2022.339854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/04/2022] [Accepted: 04/16/2022] [Indexed: 11/16/2022]
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6
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Benndorf S, Hofmeister E, Wächtler M, Görls H, Liebing P, Peneva K, Gräfe S, Kupfer S, Dietzek‐Ivanšić B, Weigand W. Unravelling the Mystery: Enlightenment of the Uncommon Electrochemistry of Naphthalene Monoimide [FeFe] Hydrogenase Mimics. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Stefan Benndorf
- Institute of Inorganic and Analytical Chemistry Friedrich Schiller University Jena Humboldtstrasse 8 07743 Jena Germany
| | - Elisabeth Hofmeister
- Department Functional Interfaces Leibniz Institute of Photonic Technology Jena (Leibniz-IPHT) Albert-Einstein-Straße 9 07745 Jena Germany
| | - Maria Wächtler
- Department Functional Interfaces Leibniz Institute of Photonic Technology Jena (Leibniz-IPHT) Albert-Einstein-Straße 9 07745 Jena Germany
- Institute of Physical Chemistry Friedrich Schiller University Jena Helmholtzweg 4 07743 Jena Germany
- Abbe Center of Photonics (ACP) Friedrich Schiller University Jena Albert-Einstein-Straße 6 07745 Jena Germany
| | - Helmar Görls
- Institute of Inorganic and Analytical Chemistry Friedrich Schiller University Jena Humboldtstrasse 8 07743 Jena Germany
| | - Phil Liebing
- Institute of Inorganic and Analytical Chemistry Friedrich Schiller University Jena Humboldtstrasse 8 07743 Jena Germany
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry Friedrich Schiller University Jena Lessingstraße 8 07743 Jena Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena), Jena Center of Soft Matter Friedrich Schiller University Jena Philosophenweg 7a 07743 Jena Germany
| | - Stefanie Gräfe
- Institute of Physical Chemistry Friedrich Schiller University Jena Helmholtzweg 4 07743 Jena Germany
- Abbe Center of Photonics (ACP) Friedrich Schiller University Jena Albert-Einstein-Straße 6 07745 Jena Germany
| | - Stephan Kupfer
- Institute of Physical Chemistry Friedrich Schiller University Jena Helmholtzweg 4 07743 Jena Germany
| | - Benjamin Dietzek‐Ivanšić
- Department Functional Interfaces Leibniz Institute of Photonic Technology Jena (Leibniz-IPHT) Albert-Einstein-Straße 9 07745 Jena Germany
- Institute of Physical Chemistry Friedrich Schiller University Jena Helmholtzweg 4 07743 Jena Germany
- Abbe Center of Photonics (ACP) Friedrich Schiller University Jena Albert-Einstein-Straße 6 07745 Jena Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena), Jena Center of Soft Matter Friedrich Schiller University Jena Philosophenweg 7a 07743 Jena Germany
| | - Wolfgang Weigand
- Institute of Inorganic and Analytical Chemistry Friedrich Schiller University Jena Humboldtstrasse 8 07743 Jena Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena), Jena Center of Soft Matter Friedrich Schiller University Jena Philosophenweg 7a 07743 Jena Germany
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7
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Meurer J, Hniopek J, Ahner J, Schmitt M, Popp J, Zechel S, Peneva K, Hager MD. In-depth characterization of self-healing polymers based on π-π interactions. Beilstein J Org Chem 2021; 17:2496-2504. [PMID: 34646398 PMCID: PMC8491711 DOI: 10.3762/bjoc.17.166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 09/14/2021] [Indexed: 12/22/2022] Open
Abstract
The self-healing behavior of two supramolecular polymers based on π–π-interactions featuring different polymer backbones is presented. For this purpose, these polymers were synthesized utilizing a polycondensation of a perylene tetracarboxylic dianhydride with polyether-based diamines and the resulting materials were investigated using various analytical techniques. Thus, the molecular structure of the polymers could be correlated with the ability for self-healing. Moreover, the mechanical behavior was studied using rheology. The activation of the supramolecular interactions results in a breaking of these noncovalent bonds, which was investigated using IR spectroscopy, leading to a sufficient increase in mobility and, finally, a healing of the mechanical damage. This scratch-healing behavior was also quantified in detail using an indenter.
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Affiliation(s)
- Josefine Meurer
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldstr. 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Julian Hniopek
- Institute of Physical Chemistry (IPC), Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany.,Abbe Center of Photonics (ACP), Friedrich Schiller University Jena, Albert-Einstein-Straße 6, 07745 Jena, Germany.,Leibniz Institute of Photonic Technology (IPHT), e. V. Jena, Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Johannes Ahner
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldstr. 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Michael Schmitt
- Institute of Physical Chemistry (IPC), Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany.,Abbe Center of Photonics (ACP), Friedrich Schiller University Jena, Albert-Einstein-Straße 6, 07745 Jena, Germany
| | - Jürgen Popp
- Institute of Physical Chemistry (IPC), Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany.,Abbe Center of Photonics (ACP), Friedrich Schiller University Jena, Albert-Einstein-Straße 6, 07745 Jena, Germany.,Leibniz Institute of Photonic Technology (IPHT), e. V. Jena, Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Stefan Zechel
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldstr. 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Kalina Peneva
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldstr. 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Martin D Hager
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldstr. 10, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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8
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Hupfer ML, Meyer R, Deckert-Gaudig T, Ghosh S, Skabeev A, Peneva K, Deckert V, Dietzek B, Presselt M. Supramolecular Reorientation During Deposition Onto Metal Surfaces of Quasi-Two-Dimensional Langmuir Monolayers Composed of Bifunctional Amphiphilic, Twisted Perylenes. Langmuir 2021; 37:11018-11026. [PMID: 34506143 DOI: 10.1021/acs.langmuir.1c01525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Supramolecular dye structures, which are often ruled by π-π interactions between planar chromophores, crucially determine the optoelectronic properties of layers and interfaces. Here, we present the interfacial assembly of perylene monoanhydride and monoimide that do not feature a planar chromophore but contain chlorine substituents in the bay positions to yield twisted chromophores and hence modified π-stacking. The assembly of the twisted perylene monoanhydride and monoimide is driven by their amphiphilicity that ensures proper Langmuir layer formation. The shielding of the hydrophilic segment upon attaching an alkyl chain to the imide moiety yielded a more rigid Langmuir layer, even though the degrees of freedom were increased due to this modification. For the characterization of the Langmuir layer's supramolecular structure, the layers were deposited onto glass, silver, and gold substrates via Langmuir-Blodgett (LB) and Langmuir-Schaefer (LS) techniques and were investigated with atomic force microscopy and surface-enhanced resonance Raman spectroscopy (SERRS). From the similarity between all SERR spectra of the LS and LB layers, we concluded that the perylenes have changed their orientation upon LB deposition to bind to the silver surface of the SERRS substrate via sulfur atoms. In the Langmuir layer, the perylenes, which are π-stacked with half of the twisted chromophores, must already be inclined and cannot achieve full parallel alignment because of the twisting-induced steric hindrance. However, upon rotation, the energetically most favorable antiparallel aligned structures can be formed and bind to the SERRS substrate. Thus, we present, to the best of our knowledge, the first fabrication of quasi-two-dimensional films from twisted amphiphilic perylene monoimides and their reassembly during LB deposition. The relation between the molecular structure, supramolecular interfacial assembly, and its adoption during adsorption revealed here is crucial for the fabrication of defined functionalizations of metal surfaces, which is key to the development of organic (opto)electronic devices.
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Affiliation(s)
- Maximilian L Hupfer
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Robert Meyer
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Tanja Deckert-Gaudig
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Soumik Ghosh
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Sciclus GmbH & Co. KG, Moritz-von-Rohr-Str. 1a, 07745 Jena, Germany
| | - Artem Skabeev
- Institute of Organic and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany
| | - Kalina Peneva
- Institute of Organic and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany
| | - Volker Deckert
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Institute of Quantum Science and Engineering, Texas A&M University, College Station, Texas 77843-4242, United States
| | - Benjamin Dietzek
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Martin Presselt
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743 Jena, Germany
- Sciclus GmbH & Co. KG, Moritz-von-Rohr-Str. 1a, 07745 Jena, Germany
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9
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Cokca C, Hack FJ, Costabel D, Herwig K, Hülsmann J, Then P, Heintzmann R, Fischer D, Peneva K. PEGylation of Guanidinium and Indole Bearing Poly(methacrylamide)s - Biocompatible Terpolymers for pDNA Delivery. Macromol Biosci 2021; 21:e2100146. [PMID: 34310046 DOI: 10.1002/mabi.202100146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/28/2021] [Indexed: 01/07/2023]
Abstract
This study describes the first example for shielding of a high performing terpolymer that consists of N-(2-hydroxypropyl)methacrylamide (HPMA), N-(3-guanidinopropyl)methacrylamide (GPMA), and N-(2-indolethyl)methacrylamide monomers (IEMA) by block copolymerization of a polyethylene glycol derivative - poly(nona(ethylene glycol)methyl ether methacrylate) (P(MEO9 MA)) via reversible addition-fragmentation chain transfer (RAFT) polymerization. The molecular weight of P(MEO9 MA) is varied from 3 to 40 kg mol-1 while the comonomer content of HPMA, GPMA, and IEMA is kept comparable. The influence of P(MEO9 MA) block with various molecular weights is investigated over cytotoxicity, plasmid DNA (pDNA) binding, and transfection efficiency of the resulting polyplexes. Overall, the increase in molecular weight of P(MEO9 MA) block demonstrates excellent biocompatibility with higher cell viability in L-929 cells and an efficient binding to pDNA at N/P ratio of 2. The significant transfection efficiency in CHO-K1 cells at N/P ratio 20 is obtained for block copolymers with molecular weight of P(MEO9 MA) up to 10 kg mol-1 . Moreover, a fluorescently labeled analogue of P(MEO9 MA), bearing perylene monoimide methacrylamide (PMIM), is introduced as a comonomer in RAFT polymerization. Polyplexes consisting of labeled block copolymer with 20 kg mol-1 of P(MEO9 MA) and pDNA are incubated in Hela cells and investigated through structured illumination microscopy (SIM).
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Affiliation(s)
- Ceren Cokca
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Lessingstrasse 8, Jena, 07743, Germany
| | - Franz J Hack
- Pharmaceutical Technology and Biopharmacy, Institute of Pharmacy, Friedrich Schiller University Jena, Lessingstrasse 8, Jena, 07743, Germany
| | - Daniel Costabel
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Lessingstrasse 8, Jena, 07743, Germany
| | - Kira Herwig
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Lessingstrasse 8, Jena, 07743, Germany
| | - Juliana Hülsmann
- Pharmaceutical Technology and Biopharmacy, Institute of Pharmacy, Friedrich Schiller University Jena, Lessingstrasse 8, Jena, 07743, Germany
| | - Patrick Then
- Leibniz Institute of Photonic Technology, Albert Einstein Str. 9, Jena, 07745, Germany
| | - Rainer Heintzmann
- Leibniz Institute of Photonic Technology, Albert Einstein Str. 9, Jena, 07745, Germany.,Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, Jena, 07743, Germany
| | - Dagmar Fischer
- Department of Chemistry and Pharmacy, Pharmaceutical Technology, Friedrich-Alexander-University Erlangen-Nürnberg, Cauerstrasse 4, Erlangen, 91058, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, Jena, 07743, Germany
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Lessingstrasse 8, Jena, 07743, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, Jena, 07743, Germany
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10
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Hack FJ, Cokca C, Städter S, Hülsmann J, Peneva K, Fischer D. Indole, Phenyl, and Phenol Groups: The Role of the Comonomer on Gene Delivery in Guanidinium Containing Methacrylamide Terpolymers. Macromol Rapid Commun 2021. [DOI: 10.1002/marc.202170025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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11
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Costabel D, Skabeev A, Nabiyan A, Luo Y, Max JB, Rajagopal A, Kowalczyk D, Dietzek B, Wächtler M, Görls H, Ziegenbalg D, Zagranyarski Y, Streb C, Schacher FH, Peneva K. 1,7,9,10-Tetrasubstituted PMIs Accessible through Decarboxylative Bromination: Synthesis, Characterization, Photophysical Studies, and Hydrogen Evolution Catalysis. Chemistry 2021; 27:4081-4088. [PMID: 33241590 PMCID: PMC7986912 DOI: 10.1002/chem.202004326] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/04/2020] [Indexed: 01/01/2023]
Abstract
In this work, we present a new synthetic strategy for fourfold-substituted perylene monoimides via tetrabrominated perylene monoanhydrides. X-ray diffraction analysis unveiled the intramolecular stacking orientation between the substituents and semicircular packing behavior. We observed the remarkable influence of the substituent on the longevity and nature of the excited state upon visible light excitation. In the presence of poly(dehydroalanine)-graft-poly(ethylene glycol) graft copolymers as solubilizing template, the chromophores are capable of sensitizing [Mo3 S13 ]2- clusters in aqueous solution for stable visible light driven hydrogen evolution over three days.
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Affiliation(s)
- Daniel Costabel
- Institute of Organic Chemistry and Macromolecular ChemistryFriedrich Schiller University JenaLessingstraße 807743JenaGermany
| | - Artem Skabeev
- Institute of Organic Chemistry and Macromolecular ChemistryFriedrich Schiller University JenaLessingstraße 807743JenaGermany
| | - Afshin Nabiyan
- Institute of Organic Chemistry and Macromolecular ChemistryFriedrich Schiller University JenaLessingstraße 807743JenaGermany
| | - Yusen Luo
- Institute of Physical ChemistryAbbe Center of PhotonicsFriedrich Schiller University JenaHelmholtzweg 407743JenaGermany
| | - Johannes B. Max
- Institute of Organic Chemistry and Macromolecular ChemistryFriedrich Schiller University JenaLessingstraße 807743JenaGermany
| | - Ashwene Rajagopal
- Institute of Inorganic Chemistry 1Ulm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Daniel Kowalczyk
- Institute of Chemical EngineeringUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Benjamin Dietzek
- Institute of Physical ChemistryAbbe Center of PhotonicsFriedrich Schiller University JenaHelmholtzweg 407743JenaGermany
- Department of Functional InterfacesLeibniz Institute of Photonic Technology JenaAlbert-Einstein-Straße 907745JenaGermany
- Center for Energy and Environmental Chemistry Jena andJena Center of Soft MatterFriedrich Schiller University JenaPhilosophenweg 7a07743JenaGermany
| | - Maria Wächtler
- Institute of Physical ChemistryAbbe Center of PhotonicsFriedrich Schiller University JenaHelmholtzweg 407743JenaGermany
- Department of Functional InterfacesLeibniz Institute of Photonic Technology JenaAlbert-Einstein-Straße 907745JenaGermany
| | - Helmar Görls
- Institute of Inorganic and Analytical ChemistryFriedrich Schiller University JenaHumboldt Straße 807743JenaGermany
| | - Dirk Ziegenbalg
- Institute of Chemical EngineeringUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Yulian Zagranyarski
- Faculty of Chemistry and PharmacySofia University “St. Kliment Ohridski”1 James Bourchier Blvd.1164SofiaBulgaria
| | - Carsten Streb
- Institute of Inorganic Chemistry 1Ulm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Felix H. Schacher
- Institute of Organic Chemistry and Macromolecular ChemistryFriedrich Schiller University JenaLessingstraße 807743JenaGermany
- Center for Energy and Environmental Chemistry Jena andJena Center of Soft MatterFriedrich Schiller University JenaPhilosophenweg 7a07743JenaGermany
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular ChemistryFriedrich Schiller University JenaLessingstraße 807743JenaGermany
- Center for Energy and Environmental Chemistry Jena andJena Center of Soft MatterFriedrich Schiller University JenaPhilosophenweg 7a07743JenaGermany
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12
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Tannert A, Garcia Lopez J, Petkov N, Ivanova A, Peneva K, Neugebauer U. Lysosome-targeting pH indicator based on peri-fused naphthalene monoimide with superior stability for long term live cell imaging. J Mater Chem B 2021; 9:112-124. [DOI: 10.1039/d0tb02208j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Lysosomal pH is altered in many pathophysiological conditions. We describe synthesis and spectral properties of a new lysosomal fluorescent marker dye suitable for microscopic evaluation of lysosomal distribution and pH changes.
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Affiliation(s)
- Astrid Tannert
- Leibniz Institute of Photonic Technology
- 07745 Jena
- Germany
- Center for Sepsis Control and Care
- Jena University Hospital
| | - Javier Garcia Lopez
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center of Soft Matter (JCSM)
| | - Nikolay Petkov
- Faculty of Chemistry and Pharmacy
- Sofia University “St. Kliment Ohridski”
- Sofia
- Bulgaria
| | - Anela Ivanova
- Faculty of Chemistry and Pharmacy
- Sofia University “St. Kliment Ohridski”
- Sofia
- Bulgaria
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center of Soft Matter (JCSM)
| | - Ute Neugebauer
- Leibniz Institute of Photonic Technology
- 07745 Jena
- Germany
- Center for Sepsis Control and Care
- Jena University Hospital
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13
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Hack FJ, Cokca C, Städter S, Hülsmann J, Peneva K, Fischer D. Indole, Phenyl, and Phenol Groups: The Role of the Comonomer on Gene Delivery in Guanidinium Containing Methacrylamide Terpolymers. Macromol Rapid Commun 2020; 42:e2000580. [PMID: 33274813 DOI: 10.1002/marc.202000580] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 10/01/2020] [Revised: 10/28/2020] [Indexed: 12/29/2022]
Abstract
This report highlights the importance of hydrophobic groups mimicking the side chains of aromatic amino acids, which are tryptophan, phenylalanine, and tyrosine, in guanidinium bearing poly(methacrylamide)s for the design of non-viral gene delivery agents. Guanidinium containing methacrylamide terpolymers are prepared by aqueous reversible addition-fragmentation chain transfer (aRAFT) polymerization with different hydrophobic monomers, N-(2-indolethyl)methacrylamide (IEMA), N-phenethylmethacrylamide (PhEMA), or N-(4-hydroxyphenethyl)methacrylamide (PhOHEMA) by aiming similar contents. The well-defined polymers are obtained with a molar mass of ≈15 000 g mol-1 and ≈1.1 dispersity. All terpolymers demonstrate almost comparable in vitro cell viability and hemocompatibility profiles independent of the type of side chain. Although they all form positively charged, enzymatically stable polyplexes with plasmid DNA smaller than 200 nm, the incorporation of the IEMA monomer improve these parameters by demonstrating a higher DNA binding affinity and forming nanoassemblies of about 100 nm. These physicochemical characteristics are correlated with increased transfection rates in CHO-K1 cells dependent on the type of the monomer and the nitrogen to phosphate (N/P) ratio of the polyplexes, as determined by luciferase reporter gene assays.
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Affiliation(s)
- Franz J Hack
- Pharmaceutical Technology and Biopharmacy, Institute of Pharmacy, Friedrich Schiller University Jena, Lessingstrasse 8, Jena, D-07743, Germany
| | - Ceren Cokca
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Lessingstrasse 8, Jena, D-07743, Germany
| | - Sebastian Städter
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Lessingstrasse 8, Jena, D-07743, Germany
| | - Juliana Hülsmann
- Pharmaceutical Technology and Biopharmacy, Institute of Pharmacy, Friedrich Schiller University Jena, Lessingstrasse 8, Jena, D-07743, Germany
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Lessingstrasse 8, Jena, D-07743, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, Jena, D-07743, Germany
| | - Dagmar Fischer
- Pharmaceutical Technology and Biopharmacy, Institute of Pharmacy, Friedrich Schiller University Jena, Lessingstrasse 8, Jena, D-07743, Germany
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14
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Biehl P, Wiemuth P, Lopez JG, Barth MC, Weidner A, Dutz S, Peneva K, Schacher FH. Weak Polyampholytes at the Interface of Magnetic Nanocarriers: A Facile Catch-and-Release Platform for Dyes. Langmuir 2020; 36:6095-6105. [PMID: 32396363 DOI: 10.1021/acs.langmuir.0c00455] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We present a platform of charge-invertible core-shell hybrid particles for the selective and reversible adsorption of small charged molecules as model systems. The herein employed carrier systems consist of an iron oxide core coated with different pH-responsive polyampholytes which exhibit varying surface charge depending on the surrounding pH value. The resulting materials were used for electrostatically mediated catch-and-release experiments of either cationic or anionic dyes with the perspective to allow the pH-dependent magnetically guided transport of suitable cargo. The use of three different polyampholyte coatings (poly(2-(imidazol-1-yl)acrylic acid) (PImAA), poly(dehydroalanine) (PDha), and poly(N,N-diallylglutamate) (PDAGA)) enables a deeper understanding about how the surface net charge in combination with the charge and charge density of any cargo influences such processes. The size, surface charge, and aggregation behavior of the herein described particles were investigated via dynamic light scattering (DLS), transmission electron microscopy (TEM), and pH-dependent ζ-potential measurements, whereas adsorption and release studies were investigated via UV-vis.
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Affiliation(s)
- P Biehl
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Philosophenweg 7, 07743 Jena, Germany
| | - P Wiemuth
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Philosophenweg 7, 07743 Jena, Germany
| | - J Garcia Lopez
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Philosophenweg 7, 07743 Jena, Germany
| | - M-C Barth
- Institute of Inorganic and Analytical Chemistry, Friedrich-Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - A Weidner
- Institute of Biomedical Engineering and Informatics, Technische Universität Ilmenau, 98693 Ilmenau, Germany
| | - S Dutz
- Institute of Biomedical Engineering and Informatics, Technische Universität Ilmenau, 98693 Ilmenau, Germany
- Department of Nano Biophotonics, Leibniz Institute of Photonic Technology, 07745 Jena, Germany
| | - K Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Philosophenweg 7, 07743 Jena, Germany
| | - F H Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Philosophenweg 7, 07743 Jena, Germany
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15
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Cokca C, Zartner L, Tabujew I, Fischer D, Peneva K. Incorporation of Indole Significantly Improves the Transfection Efficiency of Guanidinium‐Containing Poly(Methacrylamide)s. Macromol Rapid Commun 2020. [DOI: 10.1002/marc.202070012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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16
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Cokca C, Zartner L, Tabujew I, Fischer D, Peneva K. Incorporation of Indole Significantly Improves the Transfection Efficiency of Guanidinium‐Containing Poly(Methacrylamide)s. Macromol Rapid Commun 2020; 41:e1900668. [DOI: 10.1002/marc.201900668] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 02/03/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Ceren Cokca
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)Friedrich Schiller University Jena Lessingstraße 8 07743 Jena Germany
| | - Leon Zartner
- Institute of Pharmacy, Pharmaceutical Technology and BiopharmacyFriedrich Schiller University Jena Lessingstraße 8 07743 Jena Germany
| | - Ilja Tabujew
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)Friedrich Schiller University Jena Lessingstraße 8 07743 Jena Germany
| | - Dagmar Fischer
- Institute of Pharmacy, Pharmaceutical Technology and BiopharmacyFriedrich Schiller University Jena Lessingstraße 8 07743 Jena Germany
- Jena Center of Soft MatterFriedrich Schiller University Jena Philosophenweg 7 07743 Jena Germany
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)Friedrich Schiller University Jena Lessingstraße 8 07743 Jena Germany
- Jena Center of Soft MatterFriedrich Schiller University Jena Philosophenweg 7 07743 Jena Germany
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17
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Tabujew I, Willig M, Leber N, Freidel C, Negwer I, Koynov K, Helm M, Landfester K, Zentel R, Peneva K, Mailänder V. Overcoming the barrier of CD8 +T cells: Two types of nano-sized carriers for siRNA transport. Acta Biomater 2019; 100:338-351. [PMID: 31586726 DOI: 10.1016/j.actbio.2019.10.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 09/24/2019] [Accepted: 10/01/2019] [Indexed: 12/30/2022]
Abstract
Bioengineering immune cells via gene therapy offers treatment opportunities for currently fatal viral infections. Also cell therapeutics offer most recently a breakthrough technology to combat cancer. These primary human cells, however, are sensitive to toxic influences, which make the utilization of optimized physical transfection techniques necessary. The otherwise commonly applied delivery agents such as LipofectamineⓇ or strongly cationic polymer structures are not only unsuitable for in vivo experiments, but are also highly toxic to immune cells. This study aimed to improve the design of polymeric carrier systems for small interfering RNA, which would allow efficient internalization into CD8+T-cells without affecting their viability and thereby removing the current limitations in the field. Here, two new carrier systems for small interfering RNA were tested. One is a cationic diblock copolymer, in which less than 10% of the monomers were modified with triphenylphosphonium cations. This moiety is lipophilic, promotes uptake and it is mostly known for its mitotropic properties. Furthermore, cationic nanohydrogel particles were synthesized in exceedingly small sizes (Rh < 14 nm). After full physicochemical characterization of the two carriers, extensive cytotoxicity studies were performed and the concentration dependent uptake into CD8+T-cells was tested in correlation to incubation time and protein content of the surrounding medium. Both carriers facilitated efficient complexation of siRNA as well as significant internalization into primary human cells in less than three hours of incubation. In addition, neither of the delivery systems reduced cell viability making them good candidates to transport siRNA into CD8+T-cells efficiently. STATEMENT OF SIGNIFICANCE: This study provides insights into the design of polymeric delivery agents as the method of choice for overcoming the limitations of cell manipulation. Until now, CD8+T-cells, which have become a treatment tool for currently fatal diseases, have not yet been made accessible for gene silencing by polymeric siRNA carrier systems. Choosing appropriate modification approaches for two chemically different polymer structures, we were, in both cases, able to achieve significant uptake in these cells even at low concentrations and without inducing cytotoxicity. These results remove current limitations and pave the way for bioengineering via gene therapy.
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18
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Tabujew I, Heidari M, Freidel C, Helm M, Tebbe L, Wolfrum U, Nagel-Wolfrum K, Koynov K, Biehl P, Schacher FH, Potestio R, Peneva K. Tackling the Limitations of Copolymeric Small Interfering RNA Delivery Agents by a Combined Experimental–Computational Approach. Biomacromolecules 2019; 20:4389-4406. [DOI: 10.1021/acs.biomac.9b01061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ilja Tabujew
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Maziar Heidari
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Christoph Freidel
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Mark Helm
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg University Mainz, Staudingerweg 5, 55128 Mainz, Germany
| | - Lars Tebbe
- Institute of Zoology, Johannes Gutenberg University Mainz, Muellerweg 6, 55099 Mainz, Germany
| | - Uwe Wolfrum
- Institute of Zoology, Johannes Gutenberg University Mainz, Muellerweg 6, 55099 Mainz, Germany
| | - Kerstin Nagel-Wolfrum
- Institute of Zoology, Johannes Gutenberg University Mainz, Muellerweg 6, 55099 Mainz, Germany
| | - Kaloian Koynov
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Philip Biehl
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Felix H. Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
| | - Raffaello Potestio
- Physics Department, University of Trento, Via Sommarive 14, I-38123 Trento, Italy
- INFN-TIFPA, Trento Institute for Fundamental Physics and Applications, Via Sommarive 14, I-38123 Trento, Italy
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany
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19
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20
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Creusen G, Roshanasan A, Garcia Lopez J, Peneva K, Walther A. Bottom-up design of model network elastomers and hydrogels from precise star polymers. Polym Chem 2019. [DOI: 10.1039/c9py00731h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Well-defined high-molecular weight star polymers based on low-Tg water-soluble polymers enable bottom-up design of model network elastomers and functional hydrogels.
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Affiliation(s)
- Guido Creusen
- A3BMS Lab – Active
- Adaptive and Autonomous Bioinspired Materials
- Institute for Macromolecular Chemistry
- University of Freiburg
- 79104 Freiburg
| | - Ardeshir Roshanasan
- A3BMS Lab – Active
- Adaptive and Autonomous Bioinspired Materials
- Institute for Macromolecular Chemistry
- University of Freiburg
- 79104 Freiburg
| | - Javier Garcia Lopez
- Institute of Organic Chemistry and Macromolecular Chemistry
- Jena Center of Soft Matter
- Friedrich Schiller University of Jena
- 07743 Jena
- Germany
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry
- Jena Center of Soft Matter
- Friedrich Schiller University of Jena
- 07743 Jena
- Germany
| | - Andreas Walther
- A3BMS Lab – Active
- Adaptive and Autonomous Bioinspired Materials
- Institute for Macromolecular Chemistry
- University of Freiburg
- 79104 Freiburg
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21
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Tabujew I, Cokca C, Zartner L, Schubert US, Nischang I, Fischer D, Peneva K. The influence of gradient and statistical arrangements of guanidinium or primary amine groups in poly(methacrylate) copolymers on their DNA binding affinity. J Mater Chem B 2019; 7:5920-5929. [DOI: 10.1039/c9tb01269a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Herein, we report the first gradient guanidinium containing cationic copolymers and investigate their binding ability to plasmid DNA (pDNA).
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Affiliation(s)
- Ilja Tabujew
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Ceren Cokca
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Leon Zartner
- Institute of Pharmacy
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Ulrich S. Schubert
- Jena Center of Soft Matter
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
| | - Ivo Nischang
- Jena Center of Soft Matter
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
| | - Dagmar Fischer
- Institute of Pharmacy
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center of Soft Matter
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center of Soft Matter
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22
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Abul-Futouh H, Skabeev A, Botteri D, Zagranyarski Y, Görls H, Weigand W, Peneva K. Toward a Tunable Synthetic [FeFe]-Hydrogenase H-Cluster Mimic Mediated by Perylene Monoimide Model Complexes: Insight into Molecular Structures and Electrochemical Characteristics. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00450] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Hassan Abul-Futouh
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstrasse 8, 07743 Jena, Germany
- Department of Pharmacy, Al-Zytoonah University of Jordan, P. O. Box 130, Amman 11733, Jordan
| | - Artem Skabeev
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstrasse 8, 07743 Jena, Germany
| | - Davide Botteri
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstrasse 8, 07743 Jena, Germany
| | - Yulian Zagranyarski
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1 James Bourchier Avenue, Sofia 1164, Bulgaria
| | - Helmar Görls
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldt Str. 8, 07743 Jena, Germany
| | - Wolfgang Weigand
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldt Str. 8, 07743 Jena, Germany
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstrasse 8, 07743 Jena, Germany
- Friedrich Schiller University, CEEC Jena, Philosophenweg 7a, 07743 Jena, Germany
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23
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Bala R, Swami A, Tabujew I, Peneva K, Wangoo N, Sharma RK. Ultra-sensitive detection of malathion using quantum dots-polymer based fluorescence aptasensor. Biosens Bioelectron 2017; 104:45-49. [PMID: 29306032 DOI: 10.1016/j.bios.2017.12.034] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 12/12/2017] [Accepted: 12/20/2017] [Indexed: 10/18/2022]
Abstract
A novel detection platform with high malathion specificity has been developed, which operates based on the signal response in the fluorescence of CdTe@CdS quantum dots (QDs). The designed nanoprobe comprises of QDs, poly(N-(3-guanidinopropyl)methacrylamide) homopolymer (PGPMA) and malathion specific aptamer. The interaction of aptamer with malathion results in switching off of the fluorescence signal of the probe due to the availability of the cationic polymer, which causes quenching of the QDs. However, in the absence of malathion, the polymer interacts with the aptamer, via electrostatic interactions thereby rendering the fluorescence of QDs unaffected. The assay exhibited excellent sensitivity towards malathion with a detection limit of 4pM. A logarithmic correlation was observed in a wide range of malathion concentrations from 0.01nm to 1μM, facilitating the potential of proposed assay in the quantitative determination of the analyte of interest. The selectivity of the designed probe was confirmed in the presence of various pesticides, commonly employed in agricultural fields.
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Affiliation(s)
- Rajni Bala
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Sector 14, Chandigarh 160014, India
| | - Anuradha Swami
- Department of Applied Sciences, University Institute of Engineering and Technology (U.I.E.T.), Panjab University, Sector-25, Chandigarh 160014, India
| | - Ilja Tabujew
- Institute of Organic Chemistry and Macromolecular Chemistry, Jena Center of Soft Matter, Friedrich Schiller University Jena, Lessingstr. 8, 07743 Jena, Germany
| | - Kalina Peneva
- Institute of Organic Chemistry and Macromolecular Chemistry, Jena Center of Soft Matter, Friedrich Schiller University Jena, Lessingstr. 8, 07743 Jena, Germany
| | - Nishima Wangoo
- Department of Applied Sciences, University Institute of Engineering and Technology (U.I.E.T.), Panjab University, Sector-25, Chandigarh 160014, India.
| | - Rohit K Sharma
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Sector 14, Chandigarh 160014, India.
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24
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Gocheva G, Ilieva N, Peneva K, Ivanova A. Characterization of the interaction forces in a drug carrier complex of doxorubicin with a drug-binding peptide. Chem Biol Drug Des 2017; 91:874-884. [PMID: 29164779 DOI: 10.1111/cbdd.13151] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 05/23/2017] [Revised: 10/04/2017] [Accepted: 11/06/2017] [Indexed: 02/03/2023]
Abstract
Polypeptide-based materials are used as building blocks for drug delivery systems aimed at toxicity decrease in chemotherapeutics. A molecular-level approach is adopted for investigating the non-covalent interactions between doxorubicin and a recently synthesized drug-binging peptide as a key part of a system for delivery to neoplastic cells. Molecular dynamics simulations in aqueous solution at room and body temperature are applied to investigate the structure and the binding modes within the drug-peptide complex. The tryptophans are outlined as the main chemotherapeutic adsorption sites, and the importance of their placement in the peptide sequence is highlighted. The drug-peptide binging energy is evaluated by density functional theory calculations. Principal component analysis reveals comparable importance of several types of interaction for the binding strength. π-Stacking is dominant, but other factors are also significant: intercalation, peptide backbone stacking, electrostatics, dispersion, and solvation. Intra- and intermolecular H-bonding also stabilizes the complexes. The influence of solvent molecules on the binding energy is mild. The obtained data characterize the drug-to-peptide attachment as a mainly attractive collective process with interactions spanning a broad range of values. These results explain with atomistic detail the experimentally registered doxorubicin-binging ability of the peptide and outline the complex as a prospective carrying unit that can be employed in design of drug delivery systems.
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Affiliation(s)
- Gergana Gocheva
- Faculty of Chemistry and Pharmacy, University of Sofia, Sofia, Bulgaria
| | - Nina Ilieva
- Faculty of Chemistry and Pharmacy, University of Sofia, Sofia, Bulgaria
| | - Kalina Peneva
- Jena Center of Soft Matter, Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Jena, Germany
| | - Anela Ivanova
- Faculty of Chemistry and Pharmacy, University of Sofia, Sofia, Bulgaria
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25
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Lelle M, Freidel C, Kaloyanova S, Müllen K, Peneva K. Multivalency: Key Feature in Overcoming Drug Resistance with a Cleavable Cell-Penetrating Peptide-Doxorubicin Conjugate. Int J Pept Res Ther 2017. [DOI: 10.1007/s10989-017-9622-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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26
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Negwer I, Hirsch M, Kaloyanova S, Brown T, Peneva K, Butt HJ, Koynov K, Helm M. Modulation of Mitochondriotropic Properties of Cyanine Dyes by in Organello Copper-Free Click Reaction. Chembiochem 2017; 18:1814-1818. [PMID: 28704573 DOI: 10.1002/cbic.201700286] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 05/31/2017] [Indexed: 11/06/2022]
Abstract
Cyanine (Cy) dyes show a general propensity to localize in polarized mitochondria. This mitochondriotropism was used to perform a copper-free click reaction in the mitochondria of living cells. The in organello reaction of dyes Cy3 and Cy5 led to a product that was easily traceable by Förster resonance energy transfer (FRET). As determined by confocal laser scanning microscopy, the Cy3-Cy5 conjugate showed enhanced retention in mitochondria, relative to that of the starting compounds. This enhancement of a favorable property can be achieved by synthesis in organello, but not outside mitochondria.
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Affiliation(s)
- Inka Negwer
- Pharmaceutical Chemistry, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudinger Weg 5, 55128, Mainz, Germany.,Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Markus Hirsch
- Pharmaceutical Chemistry, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudinger Weg 5, 55128, Mainz, Germany
| | - Stefka Kaloyanova
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Tom Brown
- University of Oxford, Department of Chemistry, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Kalina Peneva
- Laboratory of Organic and Macromolecular Chemistry, Jena Center of Soft Matter, Friedrich-Schiller-University Jena, Lessingstrasse 8, 07743, Jena, Germany
| | - Hans-Jürgen Butt
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Kaloian Koynov
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Mark Helm
- Pharmaceutical Chemistry, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudinger Weg 5, 55128, Mainz, Germany
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27
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Lelle M, Freidel C, Kaloyanova S, Tabujew I, Schramm A, Musheev M, Niehrs C, Müllen K, Peneva K. Overcoming drug resistance by cell-penetrating peptide-mediated delivery of a doxorubicin dimer with high DNA-binding affinity. Eur J Med Chem 2017; 130:336-345. [DOI: 10.1016/j.ejmech.2017.02.056] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 02/23/2017] [Accepted: 02/24/2017] [Indexed: 12/15/2022]
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28
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Hellmuth I, Freund I, Schlöder J, Seidu-Larry S, Thüring K, Slama K, Langhanki J, Kaloyanova S, Eigenbrod T, Krumb M, Röhm S, Peneva K, Opatz T, Jonuleit H, Dalpke AH, Helm M. Bioconjugation of Small Molecules to RNA Impedes Its Recognition by Toll-Like Receptor 7. Front Immunol 2017; 8:312. [PMID: 28392787 PMCID: PMC5364167 DOI: 10.3389/fimmu.2017.00312] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 03/06/2017] [Indexed: 12/25/2022] Open
Abstract
A fundamental mechanism of the innate immune system is the recognition, via extra- and intracellular pattern-recognition receptors, of pathogen-associated molecular patterns. A prominent example is represented by foreign nucleic acids, triggering the activation of several signaling pathways. Among these, the endosomal toll-like receptor 7 (TLR7) is known to be activated by single-stranded RNA (ssRNA), which can be specifically influenced through elements of sequence structure and posttranscriptional modifications. Furthermore, small molecules TLR7 agonists (smTLRa) are applied as boosting adjuvants in vaccination processes. In this context, covalent conjugations between adjuvant and vaccines have been reported to exhibit synergistic effects. Here, we describe a concept to chemically combine three therapeutic functions in one RNA bioconjugate. This consists in the simultaneous TLR7 stimulation by ssRNA and smTLRa as well as the therapeutic function of the RNA itself, e.g., as a vaccinating or knockdown agent. We have hence synthesized bioconjugates of mRNA and siRNA containing covalently attached smTLRa and tested their function in TLR7 stimulation. Strikingly, the bioconjugates displayed decreased rather than synergistically increased stimulation. The decrease was distinct from the antagonistic action of an siRNA bearing a Gm motive, as observed by direct comparison of the effects in the presence of otherwise stimulatory RNA. In summary, these investigations showed that TRL7 activation can be impeded by bioconjugation of small molecules to RNA.
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Affiliation(s)
- Isabell Hellmuth
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Isabel Freund
- Department of Infectious Diseases, Medical Microbiology and Hygiene, University of Heidelberg , Heidelberg , Germany
| | - Janine Schlöder
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Salifu Seidu-Larry
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Kathrin Thüring
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Kaouthar Slama
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Jens Langhanki
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | | | - Tatjana Eigenbrod
- Department of Infectious Diseases, Medical Microbiology and Hygiene, University of Heidelberg , Heidelberg , Germany
| | - Matthias Krumb
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Sandra Röhm
- Max Planck Institute for Polymer Research (MPG) , Mainz , Germany
| | - Kalina Peneva
- Max Planck Institute for Polymer Research (MPG) , Mainz , Germany
| | - Till Opatz
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Helmut Jonuleit
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Alexander H Dalpke
- Department of Infectious Diseases, Medical Microbiology and Hygiene, University of Heidelberg , Heidelberg , Germany
| | - Mark Helm
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
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29
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Abul-Futouh H, Zagranyarski Y, Müller C, Schulz M, Kupfer S, Görls H, El-khateeb M, Gräfe S, Dietzek B, Peneva K, Weigand W. [FeFe]-Hydrogenase H-cluster mimics mediated by naphthalene monoimide derivatives of peri-substituted dichalcogenides. Dalton Trans 2017; 46:11180-11191. [DOI: 10.1039/c7dt02079a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Synthetic models of the active site of [FeFe]-hydrogenase containing naphthalene monoimide as bridging linker.
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30
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Franz J, Lelle M, Peneva K, Bonn M, Weidner T. SAP(E) – A cell-penetrating polyproline helix at lipid interfaces. Biochimica et Biophysica Acta (BBA) - Biomembranes 2016; 1858:2028-2034. [DOI: 10.1016/j.bbamem.2016.05.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 05/09/2016] [Accepted: 05/24/2016] [Indexed: 12/19/2022]
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31
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Freidel C, Kaloyanova S, Peneva K. Chemical tags for site-specific fluorescent labeling of biomolecules. Amino Acids 2016; 48:1357-72. [DOI: 10.1007/s00726-016-2204-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 02/18/2016] [Indexed: 01/24/2023]
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32
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Kaloyanova S, Zagranyarski Y, Ritz S, Hanulová M, Koynov K, Vonderheit A, Müllen K, Peneva K. Water-Soluble NIR-Absorbing Rylene Chromophores for Selective Staining of Cellular Organelles. J Am Chem Soc 2016; 138:2881-4. [PMID: 26891229 DOI: 10.1021/jacs.5b10425] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Biocompatible organic dyes emitting in the near-infrared are highly desirable in fluorescence imaging techniques. Herein we report a synthetic approach for building novel small peri-guanidine-fused naphthalene monoimide and perylene monoimide chromophores. The presented structures possess near-infrared absorption and emission, high photostability, and good water solubility. After a fast cellular uptake, they selectively stain mitochondria with a low background in live and fixed cells. They can be additionally modified in a one-step reaction with functional groups for covalent labeling of proteins. The low cytotoxicity allows a long time exposure of live cells to the dyes without the necessity of washing. Successful application in localization super-resolution microscopy was demonstrated in phosphate-buffered saline without any reducing or oxidizing additives.
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Affiliation(s)
- Stefka Kaloyanova
- Max Planck Institute for Polymer Research , Ackermannweg 10, 55128 Mainz, Germany
| | - Yulian Zagranyarski
- Faculty of Chemistry and Pharmacy, Sofia University 'St. Kliment Ohridski' , 1 James Bourchier Ave., Sofia 1164, Bulgaria
| | - Sandra Ritz
- Microscopy Core Facility, Institute of Molecular Biology , Ackermannweg 4, 55128 Mainz, Germany
| | - Mária Hanulová
- Microscopy Core Facility, Institute of Molecular Biology , Ackermannweg 4, 55128 Mainz, Germany
| | - Kaloian Koynov
- Max Planck Institute for Polymer Research , Ackermannweg 10, 55128 Mainz, Germany
| | - Andreas Vonderheit
- Microscopy Core Facility, Institute of Molecular Biology , Ackermannweg 4, 55128 Mainz, Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research , Ackermannweg 10, 55128 Mainz, Germany
| | - Kalina Peneva
- Max Planck Institute for Polymer Research , Ackermannweg 10, 55128 Mainz, Germany.,Laboratory of Organic and Macromolecular Chemistry, Jena Center of Soft Matter, Friedrich Schiller University Jena , Lessingstrasse 8, 07743 Jena, Germany
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33
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Lelle M, Kaloyanova S, Freidel C, Theodoropoulou M, Musheev M, Niehrs C, Stalla G, Peneva K. Octreotide-Mediated Tumor-Targeted Drug Delivery via a Cleavable Doxorubicin-Peptide Conjugate. Mol Pharm 2015; 12:4290-300. [PMID: 26524088 DOI: 10.1021/acs.molpharmaceut.5b00487] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Although recent methods for targeted drug delivery have addressed many of the existing problems of cancer therapy associated with undesirable side effects, significant challenges remain that have to be met before they find significant clinical relevance. One such area is the delicate chemical bond that is applied to connect a cytotoxic drug with targeting moieties like antibodies or peptides. Here we describe a novel platform that can be utilized for the preparation of drug-carrier conjugates in a site-specific manner, which provides excellent versatility and enables triggered release inside cancer cells. Its key feature is a cleavable doxorubicin-octreotide bioconjugate that targets overexpressed somatostatin receptors on tumor cells, where the coupling between the two components was achieved through the first cleavable disulfide-intercalating linker. The tumor targeting ability and suppression of adrenocorticotropic hormone secretion in AtT-20 cells by both octreotide and the doxorubicin hybrid were determined via a specific radioimmunoassay. Both substances reduced the hormone secretion to a similar extent, which demonstrated that the tumor homing peptide is able to interact with the relevant cell surface receptors after the attachment of the drug. Effective drug release was quickly accomplished in the presence of the physiological reducing agent glutathione. We also demonstrate the relevance of this scaffold in biological context in cytotoxicity assays with pituitary, pancreatic, and breast cancer cell lines.
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Affiliation(s)
- Marco Lelle
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Stefka Kaloyanova
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Christoph Freidel
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | | | - Michael Musheev
- Institute of Molecular Biology, Ackermannweg 4, 55128 Mainz, Germany
| | - Christof Niehrs
- Institute of Molecular Biology, Ackermannweg 4, 55128 Mainz, Germany.,Division of Molecular Embryology, DKFZ-ZMBH Alliance , 69120 Heidelberg, Germany
| | - Günter Stalla
- Max Planck Institute for Psychiatry, Kraepelinstraße 2-10, 80804 Munich, Germany
| | - Kalina Peneva
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.,Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena , Lessingstrasse 8, 07743 Jena, Germany
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34
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Kantner K, Ashraf S, Carregal-Romero S, Carrillo-Carrion C, Collot M, Del Pino P, Heimbrodt W, De Aberasturi DJ, Kaiser U, Kazakova LI, Lelle M, de Baroja NM, Montenegro JM, Nazarenus M, Pelaz B, Peneva K, Gil PR, Sabir N, Schneider LM, Shabarchina LI, Sukhorukov GB, Vazquez M, Yang F, Parak WJ. Particle-based optical sensing of intracellular ions at the example of calcium - what are the experimental pitfalls? Small 2015; 11:896-904. [PMID: 25504784 DOI: 10.1002/smll.201402110] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/24/2014] [Indexed: 06/04/2023]
Abstract
Colloidal particles with fluorescence read-out are commonly used as sensors for the quantitative determination of ions. Calcium, for example, is a biologically highly relevant ion in signaling, and thus knowledge of its spatio-temporal distribution inside cells would offer important experimental data. However, the use of particle-based intracellular sensors for ion detection is not straightforward. Important associated problems involve delivery and intracellular location of particle-based fluorophores, crosstalk of the fluorescence read-out with pH, and spectral overlap of the emission spectra of different fluorophores. These potential problems are outlined and discussed here with selected experimental examples. Potential solutions are discussed and form a guideline for particle-based intracellular imaging of ions.
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Affiliation(s)
- Karsten Kantner
- Fachbereich Physik, Philipps- Universität Marburg, Marburg, Germany
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35
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Tsoneva Y, Jonker HRA, Wagner M, Tadjer A, Lelle M, Peneva K, Ivanova A. Molecular Structure and Pronounced Conformational Flexibility of Doxorubicin in Free and Conjugated State within a Drug–Peptide Compound. J Phys Chem B 2015; 119:3001-13. [DOI: 10.1021/jp509320q] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yana Tsoneva
- University of Sofia, Faculty of Chemistry and Pharmacy,
Department of Physical Chemistry, 1 James Bourchier Avenue, 1164 Sofia, Bulgaria
| | - Hendrik R. A. Jonker
- Goethe University Frankfurt, Institute for Organic
Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance, Max von Laue Strasse 7, 60438 Frankfurt am Main, Germany
| | - Manfred Wagner
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Alia Tadjer
- University of Sofia, Faculty of Chemistry and Pharmacy,
Department of Physical Chemistry, 1 James Bourchier Avenue, 1164 Sofia, Bulgaria
| | - Marco Lelle
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Kalina Peneva
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Anela Ivanova
- University of Sofia, Faculty of Chemistry and Pharmacy,
Department of Physical Chemistry, 1 James Bourchier Avenue, 1164 Sofia, Bulgaria
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36
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Lelle M, Hameed A, Ackermann LM, Kaloyanova S, Wagner M, Berisha F, Nikolaev VO, Peneva K. Functional non-nucleoside adenylyl cyclase inhibitors. Chem Biol Drug Des 2014; 85:633-7. [PMID: 25319071 DOI: 10.1111/cbdd.12452] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 10/03/2014] [Accepted: 10/07/2014] [Indexed: 11/28/2022]
Abstract
In this study, we describe the synthesis of novel functional non-nucleoside adenylyl cyclase inhibitors, which can be easily modified with thiol containing biomolecules such as tumour targeting structures. The linkage between inhibitor and biomolecule contains cleavable bonds to enable efficient intracellular delivery in the reductive milieu of the cytosol as well as in the acidic environment within endosomes and lysosomes. The suitability of this synthetic approach was shown by the successful bioconjugation of a poor cell-permeable inhibitor with a cell-penetrating peptide. Additionally, we have demonstrated the excellent inhibitory effect of the compounds presented here in a live-cell Förster resonance energy transfer-based assay in human embryonic kidney cells.
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Affiliation(s)
- Marco Lelle
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
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37
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Kaloyanova S, Lelle M, Müllen K, Peneva K. 852: Branched cell-penetrating peptide drug conjugates for overcoming drug resistance. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50755-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Tabujew I, Freidel C, Krieg B, Helm M, Koynov K, Müllen K, Peneva K. The Guanidinium Group as a Key Part of Water-Soluble Polymer Carriers for siRNA Complexation and Protection against Degradation. Macromol Rapid Commun 2014; 35:1191-7. [DOI: 10.1002/marc.201400120] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Indexed: 01/15/2023]
Affiliation(s)
- Ilja Tabujew
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Christoph Freidel
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Bettina Krieg
- Johannes Gutenberg-Universität Mainz, Institute of Pharmacy and Biochemistry; Staudinger Weg 5 55128 Mainz Germany
| | - Mark Helm
- Johannes Gutenberg-Universität Mainz, Institute of Pharmacy and Biochemistry; Staudinger Weg 5 55128 Mainz Germany
| | - Kaloian Koynov
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Kalina Peneva
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
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39
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Lelle M, Frick SU, Steinbrink K, Peneva K. Novel cleavable cell-penetrating peptide-drug conjugates: synthesis and characterization. J Pept Sci 2014; 20:323-33. [DOI: 10.1002/psc.2617] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Revised: 01/13/2014] [Accepted: 01/17/2014] [Indexed: 12/14/2022]
Affiliation(s)
- Marco Lelle
- Department of Synthetic Chemistry; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Stefanie U. Frick
- Department of Synthetic Chemistry; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
- Department of Dermatology, University Medical Center; Johannes Gutenberg-University Mainz; Langenbeckstrasse 1 55131 Mainz Germany
| | - Kerstin Steinbrink
- Department of Dermatology, University Medical Center; Johannes Gutenberg-University Mainz; Langenbeckstrasse 1 55131 Mainz Germany
| | - Kalina Peneva
- Department of Synthetic Chemistry; Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
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40
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41
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Dorresteijn R, Ragg R, Rago G, Billecke N, Bonn M, Parekh SH, Battagliarin G, Peneva K, Wagner M, Klapper M, Müllen K. Biocompatible Polylactide-block-Polypeptide-block-Polylactide Nanocarrier. Biomacromolecules 2013; 14:1572-7. [DOI: 10.1021/bm400216r] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Robert Dorresteijn
- Max Planck Institute for Polymer Research,
Ackermannweg
10, 55128 Mainz, Germany
| | - Ruben Ragg
- Max Planck Institute for Polymer Research,
Ackermannweg
10, 55128 Mainz, Germany
| | - Gianluca Rago
- Max Planck Institute for Polymer Research,
Ackermannweg
10, 55128 Mainz, Germany
| | - Nils Billecke
- Max Planck Institute for Polymer Research,
Ackermannweg
10, 55128 Mainz, Germany
| | - Mischa Bonn
- Max Planck Institute for Polymer Research,
Ackermannweg
10, 55128 Mainz, Germany
| | - Sapun H. Parekh
- Max Planck Institute for Polymer Research,
Ackermannweg
10, 55128 Mainz, Germany
| | - Glauco Battagliarin
- Max Planck Institute for Polymer Research,
Ackermannweg
10, 55128 Mainz, Germany
| | - Kalina Peneva
- Max Planck Institute for Polymer Research,
Ackermannweg
10, 55128 Mainz, Germany
| | - Manfred Wagner
- Max Planck Institute for Polymer Research,
Ackermannweg
10, 55128 Mainz, Germany
| | - Markus Klapper
- Max Planck Institute for Polymer Research,
Ackermannweg
10, 55128 Mainz, Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research,
Ackermannweg
10, 55128 Mainz, Germany
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42
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Wang D, Pevzner L, Li C, Peneva K, Li CY, Chan DYC, Müllen K, Mezger M, Koynov K, Butt HJ. Layer with reduced viscosity at water-oil interfaces probed by fluorescence correlation spectroscopy. Phys Rev E Stat Nonlin Soft Matter Phys 2013; 87:012403. [PMID: 23410340 DOI: 10.1103/physreve.87.012403] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 09/26/2012] [Indexed: 05/21/2023]
Abstract
The two-dimensional diffusion of isolated molecular tracers at the water-n-alkane interface was studied with fluorescence correlation spectroscopy. The interfacial diffusion coefficients of larger tracers with a hydrodynamic radius of 4.0 nm agreed well with the values calculated from the macroscopic viscosities of the two bulk phases. However, for small molecule tracers with hydrodynamic radii of only 1.0 and 0.6 nm, notable deviations were observed, indicating the existence of an interfacial region with reduced effective viscosity and increased mobility.
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Affiliation(s)
- Dapeng Wang
- Max-Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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Weil T, Vosch T, Hofkens J, Peneva K, Müllen K. The Rylene Colorant Family-Tailored Nanoemitters for Photonics Research and Applications. Angew Chem Int Ed Engl 2010; 49:9068-93. [DOI: 10.1002/anie.200902532] [Citation(s) in RCA: 520] [Impact Index Per Article: 37.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Gudmand M, Rocha S, Hatzakis NS, Peneva K, Müllen K, Stamou D, Uji-I H, Hofkens J, Bjørnholm T, Heimburg T. Influence of lipid heterogeneity and phase behavior on phospholipase A2 action at the single molecule level. Biophys J 2010; 98:1873-82. [PMID: 20441751 PMCID: PMC2862199 DOI: 10.1016/j.bpj.2010.01.035] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2009] [Revised: 01/14/2010] [Accepted: 01/15/2010] [Indexed: 10/19/2022] Open
Abstract
We monitored the action of phospholipase A(2) (PLA(2)) on L- and D-dipalmitoyl-phosphatidylcholine (DPPC) Langmuir monolayers by mounting a Langmuir-trough on a wide-field fluorescence microscope with single molecule sensitivity. This made it possible to directly visualize the activity and diffusion behavior of single PLA(2) molecules in a heterogeneous lipid environment during active hydrolysis. The experiments showed that enzyme molecules adsorbed and interacted almost exclusively with the fluid region of the DPPC monolayers. Domains of gel state L-DPPC were degraded exclusively from the gel-fluid interface where the buildup of negatively charged hydrolysis products, fatty acid salts, led to changes in the mobility of PLA(2). The mobility of individual enzymes on the monolayers was characterized by single particle tracking. Diffusion coefficients of enzymes adsorbed to the fluid interface were between 3.2 microm(2)/s on the L-DPPC and 4.9 microm(2)/s on the D-DPPC monolayers. In regions enriched with hydrolysis products, the diffusion dropped to approximately 0.2 microm(2)/s. In addition, slower normal and anomalous diffusion modes were seen at the L-DPPC gel domain boundaries where hydrolysis took place. The average residence times of the enzyme in the fluid regions of the monolayer and on the product domain were between approximately 30 and 220 ms. At the gel domains it was below the experimental time resolution, i.e., enzymes were simply reflected from the gel domains back into solution.
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Affiliation(s)
- Martin Gudmand
- Membrane Biophysics Group, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
- Nano-Science Center, University of Copenhagen, Copenhagen, Denmark
| | - Susana Rocha
- Laboratory for Photochemistry and Spectroscopy, Department of Chemistry, Catholic University of Leuven, Leuven, Belgium
| | | | - Kalina Peneva
- Max Planck Institut für Polymerforschung, Mainz, Germany
| | - Klaus Müllen
- Max Planck Institut für Polymerforschung, Mainz, Germany
| | - Dimitrios Stamou
- Nano-Science Center, University of Copenhagen, Copenhagen, Denmark
| | - Hiroshi Uji-I
- Laboratory for Photochemistry and Spectroscopy, Department of Chemistry, Catholic University of Leuven, Leuven, Belgium
| | - Johan Hofkens
- Laboratory for Photochemistry and Spectroscopy, Department of Chemistry, Catholic University of Leuven, Leuven, Belgium
| | - Thomas Bjørnholm
- Nano-Science Center, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Heimburg
- Membrane Biophysics Group, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
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Peneva K, Gundlach K, Herrmann A, Paulsen H, Müllen K. Site-specific incorporation of perylene into an N-terminally modified light-harvesting complex II. Org Biomol Chem 2010; 8:4823-6. [DOI: 10.1039/c0ob00492h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Cherdhirankorn T, Best A, Koynov K, Peneva K, Muellen K, Fytas G. Diffusion in polymer solutions studied by fluorescence correlation spectroscopy. J Phys Chem B 2009; 113:3355-9. [PMID: 19228045 DOI: 10.1021/jp809707y] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We employed fluorescence correlation spectroscopy (FCS) to study the diffusion of molecular and macromolecular tracers in polystyrene solutions over a broad range of concentrations (c) and molecular weights (M(w,m)) of the matrix polymer. Molecular tracer diffusion scales only with the matrix concentration and superimposes on a single, nonpolymer specific, curve. On the contrary, the diffusion of macromolecular tracers in solutions of matrix polymers with M(w,m) sufficiently larger than the tracer molecular weight scales with c/c(p)*, where c(p)* is the tracer overlap concentration. We further demonstrate that FCS can address local and global dynamics simultaneously.
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Schwartz E, Palermo V, Finlayson C, Huang YS, Otten M, Liscio A, Trapani S, González-Valls I, Brocorens P, Cornelissen J, Peneva K, Müllen K, Spano F, Yartsev A, Westenhoff S, Friend R, Beljonne D, Nolte R, Samorì P, Rowan A. “Helter-Skelter-Like” Perylene Polyisocyanopeptides. Chemistry 2009; 15:2536-47. [DOI: 10.1002/chem.200801746] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Lebold T, Mühlstein L, Blechinger J, Riederer M, Amenitsch H, Köhn R, Peneva K, Müllen K, Michaelis J, Bräuchle C, Bein T. Tuning Single-Molecule Dynamics in Functionalized Mesoporous Silica. Chemistry 2009; 15:1661-72. [DOI: 10.1002/chem.200801380] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jung C, Ruthardt N, Lewis R, Michaelis J, Sodeik B, Nolde F, Peneva K, Müllen K, Bräuchle C. Photophysics of New Water-Soluble Terrylenediimide Derivatives and Applications in Biology. Chemphyschem 2009; 10:180-90. [DOI: 10.1002/cphc.200800628] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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