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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] [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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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] [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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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] [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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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] [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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Franz J, Lelle M, Peneva K, Bonn M, Weidner T. SAP(E) – A cell-penetrating polyproline helix at lipid interfaces. BIOCHIMICA ET BIOPHYSICA ACTA-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] [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] [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] [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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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] [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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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 (WEINHEIM AN DER BERGSTRASSE, GERMANY) 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] [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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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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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] [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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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] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Indexed: 01/15/2023]
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Revised: 01/13/2014] [Accepted: 01/17/2014] [Indexed: 12/14/2022]
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40
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Tabujew I, Peneva K. CHAPTER 1. Functionalization of Cationic Polymers for Drug Delivery Applications. POLYMER CHEMISTRY SERIES 2014. [DOI: 10.1039/9781782620105-00001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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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. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 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] [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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Weil T, Vosch T, Hofkens J, Peneva K, Müllen K. Rylenfarbstoffe als maßgeschneiderte Nanoemitter für die Photonik. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200902532] [Citation(s) in RCA: 130] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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44
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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45
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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] [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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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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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] [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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48
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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49
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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50
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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