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Zheng Y, de Vries JW, Herrmann A, Bartz-Schmidt KU, Dammeier S, Spitzer MS. CLOUDING OF INTRAOCULAR SILICONE OIL IN THE ABSENCE OF EMULSIFICATION. Retin Cases Brief Rep 2023; 17:144-151. [PMID: 33492074 DOI: 10.1097/icb.0000000000001123] [Citation(s) in RCA: 0] [Impact Index Per Article: 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] [Indexed: 11/27/2022]
Abstract
PURPOSE To describe intraocular clouding of silicone oil in the absence of emulsification. METHODS Retrospective observational case series of patients who received silicone oil injections and developed silicone oil discoloration without emulsification after pars plana vitrectomy. Clinical examinations and physicochemical analyses were performed to find out the common cause for the opaque oil. RESULTS Thirteen patients developed silicone oil discoloration after pars plana vitrectomy. It could be traced down that all patients had received silicone oil from one respective production batch. The silicone oil was removed as soon as possible after the changes were detected (range, 8-16 weeks). Gas chromatography flame ionization detector, size exclusion chromatography, and high-performance liquid chromatography analysis showed the absence of low-molecular-weight compounds in the opaque lot. Thermogravimetric analysis revealed the opaque lot was more temperature stable. During the follow-ups, no obvious retinal toxicity could be observed and best-recorded visual acuity improved considerably in 12 patients and was only limited by the underlying retinal pathologic conditions. CONCLUSION This is the first report on opacification of intraocular silicone oil without emulsification. This discoloration of silicone oil may disturb vision and prevent proper fundus examination; however, it seems to be a nontoxic phenomenon without serious long-term consequences.
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Affiliation(s)
- Ying Zheng
- Department of Ophthalmology, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
- Department of Ophthalmology, Shanghai General Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Jan Willem de Vries
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of Groningen, Groningen, the Netherlands
| | - Andreas Herrmann
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of Groningen, Groningen, the Netherlands
| | | | - Sascha Dammeier
- Institute for Ophthalmic Research, University of Tübingen, Tübingen, Germany
| | - Martin S Spitzer
- Department of Ophthalmology, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
- University Eye Hospital Tübingen, University of Tübingen, Tübingen, Germany; and
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2
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Schnichels S, Simmang D, Löscher M, Herrmann A, de Vries JW, Spitzer MS, Hurst J. Lipid-DNA Nanoparticles as Drug-Delivery Vehicles for the Treatment of Retinal Diseases. Pharmaceutics 2023; 15:pharmaceutics15020532. [PMID: 36839853 PMCID: PMC9961589 DOI: 10.3390/pharmaceutics15020532] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/28/2023] [Accepted: 01/28/2023] [Indexed: 02/08/2023] Open
Abstract
Retinal eye diseases are the leading cause of blindness in the Western world. Up to date, the only efficient treatment for many retinal diseases consists of invasive intravitreal injections of highly concentrated drugs. Despite the fact that these injections are unpleasant for the patients, they potentially cause serious side effects, e.g., infections, bleeding within the eye or retinal detachment, especially when performed on a monthly basis, thus decreasing the injection frequency and lowering the desired drug dose. Therefore, a sustained released at the region of interest with a sustained release is desired. Recently, novel lipid-DNA nanoparticles (NPs) were shown to be an efficient drug delivery platform to the anterior segment of the eye. In this study, we investigated the distribution and tropism of the NPs when applied intravitreally, as a potential medication carrier to the posterior part of the eye. This technology is perfectly suited for the delivery of low molecular weight drugs to the back of the eye, which so far is greatly hindered by fast diffusion rates of the free drugs in the vitreous body and their intrinsically low retainability in ocular tissue. Excellent biodistribution, adherence and presence for up to five days was found for the different tested nanoparticles ex vivo and in vivo. In conclusion, our lipid-DNA based nanocarrier system was able to reach the retina within minutes and penetrate the retina providing potentially safe and long-term carrier systems for small molecules or nucleotide-based therapies.
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Affiliation(s)
- Sven Schnichels
- Centre for Ophthalmology, University Eye Hospital Tübingen, 72076 Tübingen, Germany
- Correspondence: ; Tel.: +49-70712987888
| | - David Simmang
- Centre for Ophthalmology, University Eye Hospital Tübingen, 72076 Tübingen, Germany
| | - Marina Löscher
- Centre for Ophthalmology, University Eye Hospital Tübingen, 72076 Tübingen, Germany
| | - Andreas Herrmann
- DWI—Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52056 Aachen, Germany
- Institute for Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany
| | - Jan Willem de Vries
- Centre for Ophthalmology, University Eye Hospital Tübingen, 72076 Tübingen, Germany
| | - Martin S. Spitzer
- University Eye Hospital Hamburg-Eppendorf, Martinistraße 52, 20251 Hamburg, Germany
| | - José Hurst
- Centre for Ophthalmology, University Eye Hospital Tübingen, 72076 Tübingen, Germany
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3
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Schnichels S, Hurst J, de Vries JW, Ullah S, Frößl K, Gruszka A, Löscher M, Bartz-Schmidt KU, Spitzer MS, Herrmann A. Improved Treatment Options for Glaucoma with Brimonidine-Loaded Lipid DNA Nanoparticles. ACS Appl Mater Interfaces 2021; 13:9445-9456. [PMID: 33528240 DOI: 10.1021/acsami.0c18626] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Glaucoma is the second leading cause of irreversible blindness worldwide. Among others, elevated intraocular pressure (IOP) is one of the hallmarks of the disease. Antiglaucoma drugs such as brimonidine can lower the IOP but their adherence to the ocular surface is low, leading to a low drug uptake. This results in a frequent dropping regime causing low compliance by the patients. Lipid DNA nanoparticles (NPs) have the intrinsic ability to bind to the ocular surface and can be loaded with different drugs. Here, we report DNA NPs functionalized for loading of brimonidine through specific aptamers and via hydrophobic interactions with double stranded micelles. Both NP systems exhibited improved affinity toward the cornea and retained release of the drug as compared to controls both in vitro and in vivo. Both NP types were able to lower the IOP in living animals significantly more than pristine brimonidine. Importantly, the brimonidine-loaded NPs showed no toxicity and improved efficacy and hence should improve compliance. In conclusion, this drug-delivery system offers high chances of an improved treatment for glaucoma and thus preserving vision in the aging population.
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Affiliation(s)
- Sven Schnichels
- Centre for Ophthalmology, University Eye Hospital Tübingen, Elfriede-Aulhorn-Straße 7, Tübingen D-72076, Germany
| | - José Hurst
- Centre for Ophthalmology, University Eye Hospital Tübingen, Elfriede-Aulhorn-Straße 7, Tübingen D-72076, Germany
| | - Jan Willem de Vries
- Centre for Ophthalmology, University Eye Hospital Tübingen, Elfriede-Aulhorn-Straße 7, Tübingen D-72076, Germany
| | - Sami Ullah
- Centre for Ophthalmology, University Eye Hospital Tübingen, Elfriede-Aulhorn-Straße 7, Tübingen D-72076, Germany
| | - Katharina Frößl
- Centre for Ophthalmology, University Eye Hospital Tübingen, Elfriede-Aulhorn-Straße 7, Tübingen D-72076, Germany
| | - Agnieszka Gruszka
- Centre for Ophthalmology, University Eye Hospital Tübingen, Elfriede-Aulhorn-Straße 7, Tübingen D-72076, Germany
| | - Marina Löscher
- Centre for Ophthalmology, University Eye Hospital Tübingen, Elfriede-Aulhorn-Straße 7, Tübingen D-72076, Germany
| | - Karl-Ulrich Bartz-Schmidt
- Centre for Ophthalmology, University Eye Hospital Tübingen, Elfriede-Aulhorn-Straße 7, Tübingen D-72076, Germany
| | - Martin S Spitzer
- Clinic for Ophthalmology, University Medical Center Hamburg-Eppendorf (UKE), Martinistrasse 52, Hamburg D-20246, Germany
| | - Andreas Herrmann
- DWI - Leibniz Institute for Interactive Materials, Forckenbeckstrasse 50, Aachen 52056, Germany
- Institute for Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, Aachen 52074, Germany
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4
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Schnichels S, Hurst J, de Vries JW, Ullah S, Gruszka A, Kwak M, Löscher M, Dammeier S, Bartz-Schmidt KU, Spitzer MS, Herrmann A. Self-assembled DNA nanoparticles loaded with travoprost for glaucoma-treatment. Nanomedicine 2020; 29:102260. [PMID: 32629041 DOI: 10.1016/j.nano.2020.102260] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 06/15/2020] [Accepted: 06/20/2020] [Indexed: 11/29/2022]
Abstract
Lipid DNA nanoparticles (NPs) exhibit an intrinsic affinity to the ocular surface and can be loaded by hybridization with fluorophore-DNA conjugates or with the anti-glaucoma drug travoprost by hybridizing an aptamer that binds the medication. In the travoprost-loaded NPs (Trav-NPs), the drug is bound by specific, non-covalent interactions, not requiring any chemical modification of the active pharmaceutical ingredient. Fluorescently labeled Trav-NPs show a long-lasting adherence to the eye, up to sixty minutes after eye drop instillation. Biosafety of the Trav-NPs was proved and in vivo. Ex vivo and in vivo quantification of travoprost via LC-MS revealed that Trav-NPs deliver at least twice the amount of the drug at every time-point investigated compared to the pristine drug. The data successfully show the applicability of a DNA-based drug delivery system in the field of ophthalmology for the treatment of a major retinal eye disease, i.e. glaucoma.
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Affiliation(s)
- Sven Schnichels
- Centre for Ophthalmology, University Eye Hospital Tübingen, Tübingen, Germany.
| | - José Hurst
- Centre for Ophthalmology, University Eye Hospital Tübingen, Tübingen, Germany
| | - Jan Willem de Vries
- Centre for Ophthalmology, University Eye Hospital Tübingen, Tübingen, Germany
| | - Sami Ullah
- Centre for Ophthalmology, University Eye Hospital Tübingen, Tübingen, Germany
| | - Agnieszka Gruszka
- Centre for Ophthalmology, University Eye Hospital Tübingen, Tübingen, Germany
| | - Minseok Kwak
- Department of Chemistry, Pukyong National University, Busan, Republic of Korea
| | - Marina Löscher
- Centre for Ophthalmology, University Eye Hospital Tübingen, Tübingen, Germany
| | - Sascha Dammeier
- Institute for Ophthalmic Research Tübingen, Tübingen, Germany
| | | | - Martin S Spitzer
- Clinic for Ophthalmology, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - Andreas Herrmann
- Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands; DWI - Leibniz Institute for Interactive Materials, Aachen, Germany; Institute for Technical and Macromolecular Chemistry, Aachen, Germany.
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5
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Vignali V, S. Miranda B, Lodoso-Torrecilla I, van Nisselroy CAJ, Hoogenberg BJ, Dantuma S, Hollmann F, de Vries JW, Warszawik EM, Fischer R, Commandeur U, van Rijn P. Biocatalytically induced surface modification of the tobacco mosaic virus and the bacteriophage M13. Chem Commun (Camb) 2019; 55:51-54. [DOI: 10.1039/c8cc08042a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A one-step laccase induced free radical oxidation of the tobacco mosaic virus and bacteriophage M13 led to acrylate-functionalized viruses with customizable properties.
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6
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Lubbe AS, Liu Q, Smith SJ, de Vries JW, Kistemaker JCM, de Vries AH, Faustino I, Meng Z, Szymanski W, Herrmann A, Feringa BL. Photoswitching of DNA Hybridization Using a Molecular Motor. J Am Chem Soc 2018; 140:5069-5076. [PMID: 29551069 PMCID: PMC5909178 DOI: 10.1021/jacs.7b09476] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
![]()
Reversible control
over the functionality of biological systems
via external triggers may be used in future medicine to reduce the
need for invasive procedures. Additionally, externally regulated biomacromolecules
are now considered as particularly attractive tools in nanoscience
and the design of smart materials, due to their highly programmable
nature and complex functionality. Incorporation of photoswitches into
biomolecules, such as peptides, antibiotics, and nucleic acids, has
generated exciting results in the past few years. Molecular motors
offer the potential for new and more precise methods of photoregulation,
due to their multistate switching cycle, unidirectionality of rotation,
and helicity inversion during the rotational steps. Aided by computational
studies, we designed and synthesized a photoswitchable DNA hairpin,
in which a molecular motor serves as the bridgehead unit. After it
was determined that motor function was not affected by the rigid arms
of the linker, solid-phase synthesis was employed to incorporate the
motor into an 8-base-pair self-complementary DNA strand. With the
photoswitchable bridgehead in place, hairpin formation was unimpaired,
while the motor part of this advanced biohybrid system retains excellent
photochemical properties. Rotation of the motor generates large changes
in structure, and as a consequence the duplex stability of the oligonucleotide
could be regulated by UV light irradiation. Additionally, Molecular
Dynamics computations were employed to rationalize the observed behavior
of the motor–DNA hybrid. The results presented herein establish
molecular motors as powerful multistate switches for application in
biological environments.
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Affiliation(s)
- Anouk S Lubbe
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Qing Liu
- Zernike Institute for Advanced Materials , University of Groningen , Nijenborgh 4 , 9747AG Groningen , The Netherlands
| | - Sanne J Smith
- Zernike Institute for Advanced Materials , University of Groningen , Nijenborgh 4 , 9747AG Groningen , The Netherlands
| | - Jan Willem de Vries
- Zernike Institute for Advanced Materials , University of Groningen , Nijenborgh 4 , 9747AG Groningen , The Netherlands
| | - Jos C M Kistemaker
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Alex H de Vries
- Zernike Institute for Advanced Materials , University of Groningen , Nijenborgh 4 , 9747AG Groningen , The Netherlands.,Groningen Biomolecular Sciences and Biotechnology (GBB) Institute , University of Groningen , Nijenborgh 7 , 9747AG Groningen , The Netherlands
| | - Ignacio Faustino
- Groningen Biomolecular Sciences and Biotechnology (GBB) Institute , University of Groningen , Nijenborgh 7 , 9747AG Groningen , The Netherlands
| | - Zhuojun Meng
- Groningen Biomolecular Sciences and Biotechnology (GBB) Institute , University of Groningen , Nijenborgh 7 , 9747AG Groningen , The Netherlands
| | - Wiktor Szymanski
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands.,Department of Radiology, University Medical Center Groningen , University of Groningen , Hanzeplein 1 , 9713GZ Groningen , The Netherlands
| | - Andreas Herrmann
- Zernike Institute for Advanced Materials , University of Groningen , Nijenborgh 4 , 9747AG Groningen , The Netherlands.,DWI-Leibniz Institute for Interactive Materials , Forckenbeckstr. 50 , 52056 Aachen , Germany.,Institute of Technical and Macromolecular Chemistry, RWTH Aachen University , Worringerweg 2 , 52074 Aachen , Germany
| | - Ben L Feringa
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
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7
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Willem de Vries J, Schnichels S, Hurst J, Strudel L, Gruszka A, Kwak M, Bartz-Schmidt KU, Spitzer MS, Herrmann A. DNA nanoparticles for ophthalmic drug delivery. Biomaterials 2018; 157:98-106. [DOI: 10.1016/j.biomaterials.2017.11.046] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 11/14/2017] [Accepted: 11/27/2017] [Indexed: 12/17/2022]
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8
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Jin JO, Park H, Zhang W, de Vries JW, Gruszka A, Lee MW, Ahn DR, Herrmann A, Kwak M. Modular delivery of CpG-incorporated lipid-DNA nanoparticles for spleen DC activation. Biomaterials 2016; 115:81-89. [PMID: 27886556 DOI: 10.1016/j.biomaterials.2016.11.020] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 11/15/2016] [Indexed: 01/31/2023]
Abstract
We introduce a versatile carrier system for in vitro and in vivo immune stimulation based on soft matter DNA nanoparticles (NPs). The incorporation of lipid-modified nucleotides into DNA strands enables the formation of micelles of uniform size. In a single self-assembly step, the micelles can be equipped with immune adjuvant (CpG) motifs and fluorescent probes. The immunological effects of CpG confined at the NP surface were studied in a comprehensive manner in animal experiments. Dose-dependent activation of spleen dendritic cells (DCs) by CpG-conjugated NP was observed, which was accompanied by the pronounced up-regulation of co-stimulatory molecule and cytokine production.
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Affiliation(s)
- Jun-O Jin
- Shanghai Public Health Clinical Center, Shanghai Medical College, Fudan University, Shanghai 201508, China
| | - Haein Park
- Department of Chemistry, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Wei Zhang
- Shanghai Public Health Clinical Center, Shanghai Medical College, Fudan University, Shanghai 201508, China
| | - Jan Willem de Vries
- University of Groningen, Zernike Institute for Advanced Materials, Department of Polymer Chemistry, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Agnieszka Gruszka
- University of Groningen, Zernike Institute for Advanced Materials, Department of Polymer Chemistry, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Myung Won Lee
- Department of Chemistry, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Dae-Ro Ahn
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, 5 Hwarangno 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Andreas Herrmann
- University of Groningen, Zernike Institute for Advanced Materials, Department of Polymer Chemistry, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
| | - Minseok Kwak
- Department of Chemistry, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea.
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9
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Albada HB, de Vries JW, Liu Q, Golub E, Klement N, Herrmann A, Willner I. Supramolecular micelle-based nucleoapzymes for the catalytic oxidation of dopamine to aminochrome. Chem Commun (Camb) 2016; 52:5561-4. [DOI: 10.1039/c6cc01115b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Lipidated DNAzymes or a lipidated Cu(ii)-complex and lipidated aptamer sequences form supramolecular assemblies of micellar nucleoapzymes for the enhanced oxidation of dopamine to aminochrome.
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Affiliation(s)
- H. Bauke Albada
- Institute of Chemistry
- The Minerva Center for Biohybrid Complex Systems
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
| | - Jan Willem de Vries
- Zernike Institute for Advanced Materials
- University of Groningen
- Groningen
- The Netherlands
| | - Qing Liu
- Zernike Institute for Advanced Materials
- University of Groningen
- Groningen
- The Netherlands
| | - Eyal Golub
- Institute of Chemistry
- The Minerva Center for Biohybrid Complex Systems
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
| | - Niels Klement
- Zernike Institute for Advanced Materials
- University of Groningen
- Groningen
- The Netherlands
| | - Andreas Herrmann
- Zernike Institute for Advanced Materials
- University of Groningen
- Groningen
- The Netherlands
| | - Itamar Willner
- Institute of Chemistry
- The Minerva Center for Biohybrid Complex Systems
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
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10
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Gordiichuk PI, Rimmerman D, Paul A, Gautier DA, Gruszka A, Saller M, de Vries JW, Wetzelaer GJAH, Manca M, Gomulya W, Matmor M, Gloukhikh E, Loznik M, Ashkenasy N, Blom PWM, Rögner M, Loi MA, Richter S, Herrmann A. Filling the Green Gap of a Megadalton Photosystem I Complex by Conjugation of Organic Dyes. Bioconjug Chem 2015; 27:36-41. [DOI: 10.1021/acs.bioconjchem.5b00583] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Dolev Rimmerman
- The
Bio and Molecular Electronics Group, Department of Materials Science
and Engineering, Faculty of Engineering and University Center for
Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 69978, Israel
| | | | | | | | | | | | | | | | | | - Maayan Matmor
- Department
of Materials Engineering and the Ilze Katz Institute for Nanoscale
Science and Technology, Ben Gurion University of the Negev, Beer-Sheva, Israel
| | - Ekaterina Gloukhikh
- The
Bio and Molecular Electronics Group, Department of Materials Science
and Engineering, Faculty of Engineering and University Center for
Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 69978, Israel
| | | | - Nurit Ashkenasy
- Department
of Materials Engineering and the Ilze Katz Institute for Nanoscale
Science and Technology, Ben Gurion University of the Negev, Beer-Sheva, Israel
| | - Paul W. M. Blom
- Molecular
Electronics Group, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Matthias Rögner
- Plant Biochemistry, Ruhr University Bochum, D-44780 Bochum, Germany
| | | | - Shachar Richter
- The
Bio and Molecular Electronics Group, Department of Materials Science
and Engineering, Faculty of Engineering and University Center for
Nano Science and Nanotechnology, Tel Aviv University, Tel-Aviv, 69978, Israel
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11
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Wagler P, Minero GAS, Tangen U, de Vries JW, Prusty D, Kwak M, Herrmann A, McCaskill JS. Sequence-specific nucleic acid mobility using a reversible block copolymer gel matrix and DNA amphiphiles (lipid-DNA) in capillary and microfluidic electrophoretic separations. Electrophoresis 2015; 36:2451-64. [DOI: 10.1002/elps.201400489] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Revised: 04/29/2015] [Accepted: 05/14/2015] [Indexed: 01/10/2023]
Affiliation(s)
- Patrick Wagler
- Faculty of Chemistry and Biochemistry, Microsystems Chemistry and BioIT (BioMIP); Ruhr-Universität Bochum; Bochum Germany
| | - Gabriel Antonio S. Minero
- Faculty of Chemistry and Biochemistry, Microsystems Chemistry and BioIT (BioMIP); Ruhr-Universität Bochum; Bochum Germany
| | - Uwe Tangen
- Faculty of Chemistry and Biochemistry, Microsystems Chemistry and BioIT (BioMIP); Ruhr-Universität Bochum; Bochum Germany
| | - Jan Willem de Vries
- Zernike Institute for Advanced Materials; University of Groningen; AG Groningen The Netherlands
| | - Deepak Prusty
- Zernike Institute for Advanced Materials; University of Groningen; AG Groningen The Netherlands
| | - Minseok Kwak
- Department of Chemistry; Pukyong National University; Nam-gu Busan South Korea
| | - Andreas Herrmann
- Zernike Institute for Advanced Materials; University of Groningen; AG Groningen The Netherlands
| | - John S. McCaskill
- Faculty of Chemistry and Biochemistry, Microsystems Chemistry and BioIT (BioMIP); Ruhr-Universität Bochum; Bochum Germany
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12
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Liu K, Zheng L, Liu Q, de Vries JW, Gerasimov JY, Herrmann A. Nucleic acid chemistry in the organic phase: from functionalized oligonucleotides to DNA side chain polymers. J Am Chem Soc 2014; 136:14255-62. [PMID: 25265497 DOI: 10.1021/ja5080486] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
DNA-incorporating hydrophobic moieties can be synthesized by either solid-phase or solution-phase coupling. On a solid support the DNA is protected, and hydrophobic units are usually attached employing phosphoramidite chemistry involving a DNA synthesizer. On the other hand, solution coupling in aqueous medium results in low yields due to the solvent incompatibility of DNA and hydrophobic compounds. Hence, the development of a general coupling method for producing amphiphilic DNA conjugates with high yield in solution remains a major challenge. Here, we report an organic-phase coupling strategy for nucleic acid modification and polymerization by introducing a hydrophobic DNA-surfactant complex as a reactive scaffold. A remarkable range of amphiphile-DNA structures (DNA-pyrene, DNA-triphenylphosphine, DNA-hydrocarbon, and DNA block copolymers) and a series of new brush-type DNA side-chain homopolymers with high DNA grafting density are produced efficiently. We believe that this method is an important breakthrough in developing a generalized approach to synthesizing functional DNA molecules for self-assembly and related technological applications.
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Affiliation(s)
- Kai Liu
- Zernike Institute for Advanced Materials , Nijenborgh 4, 9747 AG Groningen, The Netherlands
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13
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Wamberg MC, Wieczorek R, Brier SB, de Vries JW, Kwak M, Herrmann A, Monnard PA. Functionalization of fatty acid vesicles through newly synthesized bolaamphiphile-DNA conjugates. Bioconjug Chem 2014; 25:1678-88. [PMID: 25144926 DOI: 10.1021/bc500289u] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The surface functionalization of fatty acid vesicles will allow their use as nanoreactors for complex chemistry. In this report, the tethering of several DNA conjugates to decanoic acid vesicles for molecular recognition and synthetic purposes was explored. Due to the highly dynamic nature of these structures, only one novel bola-amphiphile DNA conjugate could interact efficiently with or spontaneously pierce into the vesicle bilayers without jeopardizing their self-assembly or stability. This molecule was synthesized via a Cu(I)-catalyzed [3 + 2] azide-alkyne cycloaddition (click reaction), and consists of a single hydrocarbon chain of 20 carbons having on one end a triazole group linked to the 5'-phosphate of the nucleic acid and on the other side a hydroxyl-group. Its insertion was so effective that a fluorescent label on the DNA complementary to the conjugate could be used to visualize fatty acid structures.
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Affiliation(s)
- Michael C Wamberg
- Center for Fundamental Living Technology (FLinT), Department of Physics, Chemistry and Pharmacy, University of Southern Denmark , Campusvej 55, DK-5230 Odense M, Denmark
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14
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Gordiichuk PI, Wetzelaer GJAH, Rimmerman D, Gruszka A, de Vries JW, Saller M, Gautier DA, Catarci S, Pesce D, Richter S, Blom PWM, Herrmann A. Solid-state biophotovoltaic cells containing photosystem I. Adv Mater 2014; 26:4863-9. [PMID: 24862686 DOI: 10.1002/adma.201401135] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [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: 03/13/2014] [Revised: 04/17/2014] [Indexed: 05/20/2023]
Abstract
The large multiprotein complex, photosystem I (PSI), which is at the heart of light-dependent reactions in photosynthesis, is integrated as the active component in a solid-state organic photovoltaic cell. These experiments demonstrate that photoactive megadalton protein complexes are compatible with solution processing of organic-semiconductor materials and operate in a dry non-natural environment that is very different from the biological membrane.
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Affiliation(s)
- Pavlo I Gordiichuk
- Polymer Chemistry and Bioengineering Group, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
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15
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van der Velde JHM, Ploetz E, Hiermaier M, Oelerich J, de Vries JW, Roelfes G, Cordes T. Mechanism of intramolecular photostabilization in self-healing cyanine fluorophores. Chemphyschem 2013; 14:4084-93. [PMID: 24302532 DOI: 10.1002/cphc.201300785] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [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: 08/26/2013] [Indexed: 11/06/2022]
Abstract
Organic fluorophores, which are popular labels for microscopy applications, intrinsically suffer from transient and irreversible excursions to dark-states. An alternative to adding photostabilizers at high concentrations to the imaging buffer relies on the direct linkage to the fluorophore. However, the working principles of this approach are not yet fully understood. In this contribution, we investigate the mechanism of intramolecular photostabilization in self-healing cyanines, in which photodamage is automatically repaired. Experimental evidence is provided to demonstrate that a single photostabilizer, that is, the vitamin E derivative Trolox, efficiently heals the cyanine fluorophore Cy5 in the absence of any photostabilizers in solution. A plausible mechanism is that Trolox interacts with the fluorophore through intramolecular quenching of triplet-related dark-states, which is a mechanism that appears to be common for both triplet-state quenchers (cyclooctatetraene) and redox-active compounds (Trolox, ascorbic acid, methylviologen). Additionally, the influence of solution-additives, such as cysteamine and procatechuic acid, on the self-healing process are studied. The results suggest the potential applicability of self-healing fluorophores in stochastic optical reconstruction microscopy (STORM) with optical super-resolution. The presented data contributes to an improved understanding of the mechanism involved in intramolecular photostabilization and has high relevance for the future development of self-healing fluorophores, including their applications in various research fields.
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Affiliation(s)
- Jasper H M van der Velde
- Molecular Microscopy Research Group & Single-molecule Biophysics, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen (The Netherlands), Fax: (+31) 50-363-9199
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16
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de Vries JW, Zhang F, Herrmann A. Drug delivery systems based on nucleic acid nanostructures. J Control Release 2013; 172:467-83. [DOI: 10.1016/j.jconrel.2013.05.022] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Revised: 05/23/2013] [Accepted: 05/24/2013] [Indexed: 01/26/2023]
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17
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Wilks TR, Bath J, de Vries JW, Raymond JE, Herrmann A, Turberfield AJ, O'Reilly RK. "Giant surfactants" created by the fast and efficient functionalization of a DNA tetrahedron with a temperature-responsive polymer. ACS Nano 2013; 7:8561-8572. [PMID: 24041260 DOI: 10.1021/nn402642a] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Copper catalyzed azide-alkyne cycloaddition (CuAAC) was employed to synthesize DNA block copolymers (DBCs) with a range of polymer blocks including temperature-responsive poly(N-isoproylacrylamide) (poly(NIPAM)) and highly hydrophobic poly(styrene). Exceptionally high yields were achieved at low DNA concentrations, in organic solvents, and in the absence of any solid support. The DNA segment of the DBC remained capable of sequence-specific hybridization: it was used to assemble a precisely defined nanostructure, a DNA tetrahedron, with pendant poly(NIPAM) segments. In the presence of an excess of poly(NIPAM) homopolymer, the tetrahedron-poly(NIPAM) conjugate nucleated the formation of large, well-defined nanoparticles at 40 °C, a temperature at which the homopolymer precipitated from solution. These composite nanoparticles were observed by dynamic light scattering and cryoTEM, and their hybrid nature was confirmed by AFM imaging. As a result of the large effective surface area of the tetrahedron, only very low concentrations of the conjugate were required in order for this surfactant-like behavior to be observed.
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Affiliation(s)
- Thomas R Wilks
- Department of Chemistry, University of Warwick , Coventry, West Midlands CV4 7AL, U.K
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18
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Ciric J, Oostland J, de Vries JW, Woortman AJJ, Loos K. Size Exclusion Chromatography with Multi Detection in Combination with Matrix-Assisted Laser Desorption Ionization-Time-of-Flight Mass Spectrometry as a Tool for Unraveling the Mechanism of the Enzymatic Polymerization of Polysaccharides. Anal Chem 2012; 84:10463-70. [DOI: 10.1021/ac302704q] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jelena Ciric
- Department of Polymer Chemistry,
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4 9747 AG Groningen, The Netherlands
| | - Jorrit Oostland
- Department of Polymer Chemistry,
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4 9747 AG Groningen, The Netherlands
| | - Jan Willem de Vries
- Department of Polymer Chemistry,
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4 9747 AG Groningen, The Netherlands
| | - Albert J. J. Woortman
- Department of Polymer Chemistry,
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4 9747 AG Groningen, The Netherlands
| | - Katja Loos
- Department of Polymer Chemistry,
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4 9747 AG Groningen, The Netherlands
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Kwiat M, Elnathan R, Kwak M, de Vries JW, Pevzner A, Engel Y, Burstein L, Khatchtourints A, Lichtenstein A, Flaxer E, Herrmann A, Patolsky F. Non-covalent monolayer-piercing anchoring of lipophilic nucleic acids: preparation, characterization, and sensing applications. J Am Chem Soc 2011; 134:280-92. [PMID: 22084968 DOI: 10.1021/ja206639d] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Functional interfaces of biomolecules and inorganic substrates like semiconductor materials are of utmost importance for the development of highly sensitive biosensors and microarray technology. However, there is still a lot of room for improving the techniques for immobilization of biomolecules, in particular nucleic acids and proteins. Conventional anchoring strategies rely on attaching biomacromolecules via complementary functional groups, appropriate bifunctional linker molecules, or non-covalent immobilization via electrostatic interactions. In this work, we demonstrate a facile, new, and general method for the reversible non-covalent attachment of amphiphilic DNA probes containing hydrophobic units attached to the nucleobases (lipid-DNA) onto SAM-modified gold electrodes, silicon semiconductor surfaces, and glass substrates. We show the anchoring of well-defined amounts of lipid-DNA onto the surface by insertion of their lipid tails into the hydrophobic monolayer structure. The surface coverage of DNA molecules can be conveniently controlled by modulating the initial concentration and incubation time. Further control over the DNA layer is afforded by the additional external stimulus of temperature. Heating the DNA-modified surfaces at temperatures >80 °C leads to the release of the lipid-DNA structures from the surface without harming the integrity of the hydrophobic SAMs. These supramolecular DNA layers can be further tuned by anchoring onto a mixed SAM containing hydrophobic molecules of different lengths, rather than a homogeneous SAM. Immobilization of lipid-DNA on such SAMs has revealed that the surface density of DNA probes is highly dependent on the composition of the surface layer and the structure of the lipid-DNA. The formation of the lipid-DNA sensing layers was monitored and characterized by numerous techniques including X-ray photoelectron spectroscopy, quartz crystal microbalance, ellipsometry, contact angle measurements, atomic force microscopy, and confocal fluorescence imaging. Finally, this new DNA modification strategy was applied for the sensing of target DNAs using silicon-nanowire field-effect transistor device arrays, showing a high degree of specificity toward the complementary DNA target, as well as single-base mismatch selectivity.
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Affiliation(s)
- Moria Kwiat
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
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