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Buscemi G, Trotta M, Vona D, Farinola GM, Milano F, Ragni R. Supramolecular Biohybrid Construct for Photoconversion Based on a Bacterial Reaction Center Covalently Bound to Cytochrome c by an Organic Light Harvesting Bridge. Bioconjug Chem 2023; 34:629-637. [PMID: 36896985 PMCID: PMC10120590 DOI: 10.1021/acs.bioconjchem.2c00527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/13/2023] [Indexed: 03/11/2023]
Abstract
A supramolecular construct for solar energy conversion is developed by covalently bridging the reaction center (RC) from the photosynthetic bacterium Rhodobacter sphaeroides and cytochrome c (Cyt c) proteins with a tailored organic light harvesting antenna (hCy2). The RC-hCy2-Cyt c biohybrid mimics the working mechanism of biological assemblies located in the bacterial cell membrane to convert sunlight into metabolic energy. hCy2 collects visible light and transfers energy to the RC, increasing the rate of photocycle between a RC and Cyt c that are linked in such a way that enhances proximity without preventing protein mobility. The biohybrid obtained with average 1 RC/10 hCy2/1.5 Cyt c molar ratio features an almost doubled photoactivity versus the pristine RC upon illumination at 660 nm, and ∼10 times higher photocurrent versus an equimolar mixture of the unbound proteins. Our results represent an interesting insight into photoenzyme chemical manipulation, opening the way to new eco-sustainable systems for biophotovoltaics.
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Affiliation(s)
- Gabriella Buscemi
- Dipartimento
di Chimica, Università degli Studi
di Bari Aldo Moro, Via
Orabona, 4, 70126 Bari, Italy
| | - Massimo Trotta
- Istituto
per i Processi Chimico Fisici, Consiglio
Nazionale delle Ricerche (CNR-IPCF), Via Orabona, 4, 70126 Bari, Italy
| | - Danilo Vona
- Dipartimento
di Chimica, Università degli Studi
di Bari Aldo Moro, Via
Orabona, 4, 70126 Bari, Italy
| | - Gianluca M. Farinola
- Dipartimento
di Chimica, Università degli Studi
di Bari Aldo Moro, Via
Orabona, 4, 70126 Bari, Italy
| | - Francesco Milano
- Istituto
di Scienze delle Produzioni Alimentari, Consiglio Nazionale delle Ricerche (CNR-ISPA), Via P. le Lecce-Monteroni, 73100 Lecce, Italy
| | - Roberta Ragni
- Dipartimento
di Chimica, Università degli Studi
di Bari Aldo Moro, Via
Orabona, 4, 70126 Bari, Italy
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Yoneda Y, Kito M, Mori D, Goto A, Kondo M, Miyasaka H, Nagasawa Y, Dewa T. Ultrafast Energy Transfer between Self-Assembled Fluorophore and Photosynthetic Light-Harvesting Complex 2 (LH2) in Lipid Bilayer. J Chem Phys 2022; 156:095101. [DOI: 10.1063/5.0077910] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | | | | | | | - Masaharu Kondo
- Life Science and Applied Chemistry, Nagoya Institute of Technology, Japan
| | - Hiroshi Miyasaka
- Frontier Materials Science, Osaka University Graduate School of Engineering Science School of Engineering Science, Japan
| | - Yutaka Nagasawa
- College of Lifesciences, Ritsumeikan University College of Life Sciences Graduate School of Life Sciences, Japan
| | - Takehisa Dewa
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Japan
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Amoruso G, Liu J, Polak DW, Tiwari K, Jones MR, Oliver TAA. High-Efficiency Excitation Energy Transfer in Biohybrid Quantum Dot-Bacterial Reaction Center Nanoconjugates. J Phys Chem Lett 2021; 12:5448-5455. [PMID: 34081477 DOI: 10.1021/acs.jpclett.1c01407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Reaction centers (RCs) are the pivotal component of natural photosystems, converting solar energy into the potential difference between separated electrons and holes that is used to power much of biology. RCs from anoxygenic purple photosynthetic bacteria such as Rhodobacter sphaeroides only weakly absorb much of the visible region of the solar spectrum, which limits their overall light-harvesting capacity. For in vitro applications such as biohybrid photodevices, this deficiency can be addressed by effectively coupling RCs with synthetic light-harvesting materials. Here, we studied the time scale and efficiency of Förster resonance energy transfer (FRET) in a nanoconjugate assembled from a synthetic quantum dot (QD) antenna and a tailored RC engineered to be fluorescent. Time-correlated single-photon counting spectroscopy of biohybrid conjugates enabled the direct determination of FRET from QDs to attached RCs on a time scale of 26.6 ± 0.1 ns and with a high efficiency of 0.75 ± 0.01.
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Affiliation(s)
- Giordano Amoruso
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Juntai Liu
- Department of Physics, University of Warwick, Coventry CV4 7AL, U.K
| | - Daniel W Polak
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Kavita Tiwari
- School of Biochemistry, University of Bristol, Biomedical Sciences Building, University Walk, Bristol BS8 1TD, U.K
| | - Michael R Jones
- School of Biochemistry, University of Bristol, Biomedical Sciences Building, University Walk, Bristol BS8 1TD, U.K
| | - Thomas A A Oliver
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
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Yoneda Y, Kato D, Kondo M, Nagashima KVP, Miyasaka H, Nagasawa Y, Dewa T. Sequential energy transfer driven by monoexponential dynamics in a biohybrid light-harvesting complex 2 (LH2). PHOTOSYNTHESIS RESEARCH 2020; 143:115-128. [PMID: 31620983 DOI: 10.1007/s11120-019-00677-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 09/24/2019] [Indexed: 06/10/2023]
Abstract
Enhancing the light-harvesting potential of antenna components in a system of solar energy conversion is an important topic in the field of artificial photosynthesis. We constructed a biohybrid light-harvesting complex 2 (LH2) engineered from Rhodobacter sphaeroides IL106 strain. An artificial fluorophore Alexa Fluor 647 maleimide (A647) was attached to the LH2 bearing cysteine residue at the N-terminal region (LH2-NC) near B800 bacteriochlorophyll a (BChl) assembly. The A647-attached LH2-NC conjugate (LH2-NC-A647) preserved the integrity of the intrinsic chromophores, B800- and B850-BChls, and carotenoids. Femtosecond transient absorption spectroscopy revealed that the sequential energy transfer A647 → B800 → B850 occurs at time scale of 9-10 ps with monoexponential dynamics in micellar and lipid bilayer systems. A B800-removed conjugate (LH2-NC[B800(-)]-A647) exhibited a significant decrease in energy transfer efficiency in the micellar system; however, surprisingly, direct energy transfer from A647 to B850 was observed at a rate comparable to that for LH2-NC-A647. This result implies that the energy transfer pathway is modified after B800 removal. The results obtained suggested that a LH2 complex is a potential platform for construction of biohybrid light-harvesting materials with simple energy transfer dynamics through the site-selective attachment of the external antennae and the modifiable energy-funnelling pathway.
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Affiliation(s)
- Yusuke Yoneda
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Daiji Kato
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi, 466-8555, Japan
| | - Masaharu Kondo
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi, 466-8555, Japan
| | - Kenji V P Nagashima
- Research Institute for Integrated Science, Kanagawa University, Kanagawa, 259-1293, Japan
| | - Hiroshi Miyasaka
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Yutaka Nagasawa
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga, 525-8577, Japan.
| | - Takehisa Dewa
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi, 466-8555, Japan.
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Sissa C, Painelli A, Terenziani F, Trotta M, Ragni R. About the origin of the large Stokes shift in aminoalkyl substituted heptamethine cyanine dyes. Phys Chem Chem Phys 2019; 22:129-135. [PMID: 31821398 DOI: 10.1039/c9cp05473a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Aminoalkyl-substituted heptamethine cyanine dyes are characterized by a large Stokes shift, an uncommon feature for cyanine molecules yet very promising for their application as fluorescent probes in bioimaging and as light harvesting antennas in biohybrid systems for solar energy conversion. The origin of this photophysical feature has not been adequately explored so far, and a combined experimental and theoretical work is herein provided to shed light on the role played by the central aminoalkyl substituent bound to the heptamethine cyanine backbone in defining the unusual properties of the dye. The spectra recorded in solvents of different polarities point to a marginal role of the medium in the definition of the Stokes shift, which conversely can be ascribed to the relaxation of the molecular geometry upon photoexcitation. This hypothesis is supported by an extensive theoretical investigation of the ground and excited states of the dye. TD-DFT results on the aminoalkyl-substituted dye and its unsubstituted precursor demonstrate a very similar cyanine-like structure for both molecules in the relaxed excited state. Conversely, in the ground state the amino substitution disrupts the conjugation in the polymethine chain, leading to a broken-symmetry, non-planar structure.
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Affiliation(s)
- Cristina Sissa
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy.
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Irimia-Vladu M, Kanbur Y, Camaioni F, Coppola ME, Yumusak C, Irimia CV, Vlad A, Operamolla A, Farinola GM, Suranna GP, González-Benitez N, Molina MC, Bautista LF, Langhals H, Stadlober B, Głowacki ED, Sariciftci NS. Stability of Selected Hydrogen Bonded Semiconductors in Organic Electronic Devices. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2019; 31:6315-6346. [PMID: 32565617 PMCID: PMC7297463 DOI: 10.1021/acs.chemmater.9b01405] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 07/11/2019] [Indexed: 05/02/2023]
Abstract
The electronics era is flourishing and morphing itself into Internet of Everything, IoE. At the same time, questions arise on the issue of electronic materials employed: especially their natural availability and low-cost fabrication, their functional stability in devices, and finally their desired biodegradation at the end of their life cycle. Hydrogen bonded pigments and natural dyes like indigo, anthraquinone and acridone are not only biodegradable and of bio-origin but also have functionality robustness and offer versatility in designing electronics and sensors components. With this Perspective, we intend to coalesce all the scattered reports on the above-mentioned classes of hydrogen bonded semiconductors, spanning across several disciplines and many active research groups. The article will comprise both published and unpublished results, on stability during aging, upon electrical, chemical and thermal stress, and will finish with an outlook section related to biological degradation and biological stability of selected hydrogen bonded molecules employed as semiconductors in organic electronic devices. We demonstrate that when the purity, the long-range order and the strength of chemical bonds, are considered, then the Hydrogen bonded organic semiconductors are the privileged class of materials having the potential to compete with inorganic semiconductors. As an experimental historical study of stability, we fabricated and characterized organic transistors from a material batch synthesized in 1932 and compared the results to a fresh material batch.
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Affiliation(s)
- Mihai Irimia-Vladu
- Joanneum
Research Forschungsgesellschaft mbH, Franz-Pichler Str. Nr. 30, 8160 Weiz, Austria
- Linz
Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University Linz, Altenberger Str. Nr. 69, 4040 Linz, Austria
- Mihai
Irimia-Vladu. E-mail:
| | - Yasin Kanbur
- Linz
Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University Linz, Altenberger Str. Nr. 69, 4040 Linz, Austria
- Department
of Metallurgical and Materials Engineering, Karabuk University, BaliklarkayasiMevkii, 78050 Karabük, Turkey
| | - Fausta Camaioni
- Joanneum
Research Forschungsgesellschaft mbH, Franz-Pichler Str. Nr. 30, 8160 Weiz, Austria
- School
of Industrial and Information Engineering, Politecnico di Milano, Via Raffaele Lambruschini, 15, 20156 Milano, Milan, Italy
| | - Maria Elisabetta Coppola
- Joanneum
Research Forschungsgesellschaft mbH, Franz-Pichler Str. Nr. 30, 8160 Weiz, Austria
- School
of Industrial and Information Engineering, Politecnico di Milano, Via Raffaele Lambruschini, 15, 20156 Milano, Milan, Italy
| | - Cigdem Yumusak
- Linz
Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University Linz, Altenberger Str. Nr. 69, 4040 Linz, Austria
| | - Cristian Vlad Irimia
- Joanneum
Research Forschungsgesellschaft mbH, Franz-Pichler Str. Nr. 30, 8160 Weiz, Austria
- Bundesrealgymnasium
Seebacher, Seebachergasse 11, 8010 Graz, Austria
| | - Angela Vlad
- National
Institute for Laser, Plasma and Radiation Physics (INFLPR), Atomistilor Street, No. 409, Magurele, Bucharest, 077125 Ilfov, Romania
| | - Alessandra Operamolla
- Dipartimento
di Chimica, Università degli Studi
di Bari Aldo Moro, Via E. Orabona 4, I-70126 Bari, Italy
| | - Gianluca M. Farinola
- Dipartimento
di Chimica, Università degli Studi
di Bari Aldo Moro, Via E. Orabona 4, I-70126 Bari, Italy
| | - Gian Paolo Suranna
- Department
of Civil, Environmental and Chemical Engineering (DICATECh), Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy
| | - Natalia González-Benitez
- Department
of Biology and Geology, Physics and Inorganic Chemistry, Rey Juan Carlos University, Calle Tulipán s/n, 28933 Móstoles (Madrid), Spain
| | - Maria Carmen Molina
- Department
of Biology and Geology, Physics and Inorganic Chemistry, Rey Juan Carlos University, Calle Tulipán s/n, 28933 Móstoles (Madrid), Spain
| | - Luis Fernando Bautista
- Department
of Chemical and Environmental Technology, Rey Juan Carlos University, Calle Tulipán s/n, 28933 Móstoles (Madrid), Spain
| | - Heinz Langhals
- Linz
Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University Linz, Altenberger Str. Nr. 69, 4040 Linz, Austria
- Department
Department of Chemistry, Ludwig-Maximilians
University München, Butenandtstr. 13, D-81377 München, Germany
| | - Barbara Stadlober
- Joanneum
Research Forschungsgesellschaft mbH, Franz-Pichler Str. Nr. 30, 8160 Weiz, Austria
| | - Eric Daniel Głowacki
- Linz
Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University Linz, Altenberger Str. Nr. 69, 4040 Linz, Austria
- Linköping
University, Department of Science
and Technology, Laboratory of Organic Electronics, Bredgatan 33, Norrköping 60221, Sweden
| | - Niyazi Serdar Sariciftci
- Linz
Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University Linz, Altenberger Str. Nr. 69, 4040 Linz, Austria
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