1
|
Ghosh R, Singh S, Mukherjee D, Mondal S, Das M, Pal U, Adhikari A, Bhushan A, Bose S, Bhattacharyya SS, Pal D, Saha-Dasgupta T, Bhattacharyya M, Bhattacharyya D, Mallick AK, Das R, Pal SK. Host-assisted delivery of a model drug to genomic DNA: Key information from ultrafast spectroscopy and in silico study. Chembiochem 2022; 23:e202200109. [PMID: 35225409 DOI: 10.1002/cbic.202200109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Indexed: 11/10/2022]
Abstract
Intended drug delivery to a target without adverse effect is one of the major criteria for its acceptance in real use. Herein, we have made an attempt to explore the delivery efficacy of SDS surfactant in a monomer and micellar stage during the delivery of model drug, Toluidine Blue (TB) from micellar cavity to DNA. Molecular recognition of pre-micellar SDS encapsulated TB with DNA occurs at a rate constant (k1~652 s-1). On the contrary, no significant release of encapsulated TB at micellar concentration was observed within the experimental time frame. This originated from the higher binding affinity of TB towards the nano cavity of SDS at micellar concentration which doesn't allow the delivery of TB from the nano cavity of SDS micelle to DNA. Thus, molecular recognition controls the extent of DNA recognition by TB which in turn modulates the rate of delivery of TB from SDS in a concentration dependent morphology.
Collapse
Affiliation(s)
- Ria Ghosh
- S N Bose National Centre for Basic Sciences, CBMS, Block JD, Sector 3, Salt lake,, 700106, Kolkata, INDIA
| | - Soumendra Singh
- S N Bose National Centre for Basic Sciences, Technical Research Centre, Block JD, Sector 3, Salt Lake, 700106, Kolkata, INDIA
| | - Dipanjan Mukherjee
- S N Bose National Centre for Basic Sciences, CBMS, Block JD, Sector 3, Salt lake, 700106, Kolkata, INDIA
| | - Susmita Mondal
- S N Bose National Centre for Basic Sciences, CBMS, Block JD, Sector 3, Salt lake, 700106, Kolkata, INDIA
| | - Monojit Das
- Vidyasagar University, Zoology, 7221102, Midnapore, INDIA
| | - Uttam Pal
- S N Bose National Centre for Basic Sciences, Technical Research Centre, Block JD, Sector 3, Salt Lake, 700106, Kolkata, INDIA
| | - Aniruddha Adhikari
- S N Bose National Centre for Basic Sciences, CBMS, Block JD, Sector 3, Salt lake, 700106, Kolkata, INDIA
| | - Aman Bhushan
- Thapar University: Thapar Institute of Engineering and Technology, Biotechnology, Bhadson Road, Patiala, Punjab, 147004, Patiala, INDIA
| | - Surajit Bose
- KSDJ Dental College and Hospital, Oral and Maxillofacial Pathology, 700002, Kolkata, INDIA
| | | | - Debasish Pal
- Uluberia College, Zoology, 711315, Howrah, INDIA
| | - Tanusri Saha-Dasgupta
- S N Bose National Centre for Basic Sciences, CMPS, Block JD, Sector 3, Salt Lake, 700106, Kolkata, INDIA
| | - Maitree Bhattacharyya
- University of Calcutta, Biochemistry, 35, Ballygunge Circular Rd, Ballygunge, 700019, Kolkata, INDIA
| | - Debasis Bhattacharyya
- Nilratan Sircar Medical College and Hospital, Gynecology and Obstetrics, 138, AJC Bose Road, Sealdah, Raja Bazar,, 700014, Kolkata, INDIA
| | - Asim Kumar Mallick
- Nilratan Sircar Medical College and Hospital, Pediatric Medicine, 138, AJC Bose Road, Sealdah, Raja Bazar, 700014, Kolkata, INDIA
| | - Ranjan Das
- West Bengal State University, Chemistry, 700126, Kolkata, INDIA
| | - Samir Kumar Pal
- SNBNCBS, CBMS, Block JD, Sector III, Salt Lake City, 700098, Kolkata, INDIA
| |
Collapse
|
2
|
Local DNA microviscosity converts ruthenium polypyridyl complexes to ultrasensitive photosensitizers. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117788] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
3
|
Pramanik S, Nandy A, Chakraborty S, Pramanik U, Nandi S, Mukherjee S. Preferential Binding of Thioflavin T to AT-Rich DNA: White Light Emission through Intramolecular Förster Resonance Energy Transfer. J Phys Chem Lett 2020; 11:2436-2442. [PMID: 32141760 DOI: 10.1021/acs.jpclett.0c00237] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Herein we report the effect of different nucleobase pair compositions on the association-induced fluorescence enhancement property of Thioflavin T (ThT), upon binding with 20 base pair long double-stranded DNA (dsDNA). Analysis of binding and decay constants along with the association (Kass) and dissociation (Kdiss) rate constants obtained from the fluctuation in the fluorescence intensity of ThT after binding with different DNA revealed selective affinity of ThT toward AT-rich dsDNA. Molecular docking also substantiates the experimental results. We also observed that addition of orange-emitting ethidium bromide (EtBr) to cyan-emitting ThT-DNA complexes leads to bright white light emission (WLE) through Förster resonance energy transfer. Additionally, the emission of white light is far greater in the case of intra-DNA strands. Besides endorsing the binding insights of ThT to AT-rich dsDNA, the present investigations open a new perspective for realizing promising WLE from two biomarkers without labeling the DNA.
Collapse
Affiliation(s)
- Srikrishna Pramanik
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462066, Madhya Pradesh, India
| | - Atanu Nandy
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462066, Madhya Pradesh, India
| | - Subhajit Chakraborty
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462066, Madhya Pradesh, India
| | - Ushasi Pramanik
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462066, Madhya Pradesh, India
| | - Somen Nandi
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462066, Madhya Pradesh, India
| | - Saptarshi Mukherjee
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal 462066, Madhya Pradesh, India
| |
Collapse
|
4
|
New minor groove covering DNA binding mode of dinuclear Pt(II) complexes with various pyridine-linked bridging ligands and dual anticancer-antiangiogenic activities. J Biol Inorg Chem 2020; 25:395-409. [PMID: 32162071 DOI: 10.1007/s00775-020-01770-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Accepted: 02/25/2020] [Indexed: 12/11/2022]
Abstract
New anticancer platinum(II) compounds simultaneously targeting tumor cells and tumor-derived neoangiogenesis, with new DNA interacting mode and large therapeutic window are appealing alternative to improve efficacy of clinical platinum chemotherapeutics. Herein, we describe three novel dinuclear [{Pt(en)Cl}2(μ-L)]2+ complexes with different pyridine-like bridging ligands (L), 4,4'-bipyridine (Pt1), 1,2-bis(4-pyridyl)ethane (Pt2) and 1,2-bis(4-pyridyl)ethene (Pt3), which highly, positively charged aqua derivatives, [{Pt(en)(H2O)}2(μ-L)]4+, interact with the phosphate backbone forming DNA-Pt adducts with an unique and previously undescribed binding mode, called a minor groove covering. The results of this study suggested that the new binding mode of the aqua-Pt(II) complexes with DNA could be attributed to the higher anticancer activities of their chloride analogues. All three compounds, particularly complex [{Pt(en)Cl}2(μ-4,4'-bipy)]Cl2·2H2O (4,4'-bipy is 4,4'-bipyridine) (Pt1), overcame cisplatin resistance in vivo in the zebrafish-mouse melanoma xenograft model, showed much higher therapeutic potential than antiangiogenic drug sunitinib malate, while effectively blocking tumor neovascularization and melanoma cell metastasis. Overall therapeutic profile showed new dinuclear Pt(II) complexes could be novel, effective and safe anticancer agents. Finally, the correlation with the structural characteristics of these complexes can serve as a useful tool for developing new and more effective anticancer drugs.
Collapse
|
5
|
Mehran S, Rasmi Y, Karamdel HR, Hossinzadeh R, Gholinejad Z. Study of the Binding Interaction between Wortmannin and Calf Thymus DNA: Multispectroscopic and Molecular Docking Studies. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2019; 2019:4936351. [PMID: 31975999 PMCID: PMC6949734 DOI: 10.1155/2019/4936351] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/08/2019] [Accepted: 10/16/2019] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Wortmannin (WTN) is a steroid metabolite that inhibits phosphatidylinositol 3-kinase and other signaling pathways. Structurally, the WTN consists of a cyclopentanophenanthrene-like structure with several oxygen-rich moieties which have the potential to interact with deoxyribonucleic acid (DNA) molecules. METHODS We aim to evaluate the WTN and calf thymus DNA (ct-DNA) interaction with molecular docking using the AutoDock 4.2 software. UV and fluorescence spectroscopy and viscosity techniques were performed to confirm the in silico analysis. RESULTS Molecular docking showed that the WTN interacted with ct-DNA via hydrogen bonds at guanine-rich sequences. The number of hydrogen bonds between the WTN and DNA was 1-2 bonds (average 1.2) per WTN molecule. The in silico binding constant was 2 × 103 M-1. UV spectroscopy showed that the WTN induced a hyperchromic feature without wavelength shifting. The WTN and DNA interaction led to quenching of DNA-emitted fluorescence. The different concentrations of WTN had no effect on DNA viscosity. Taken together, our results demonstrated WTN interacts with DNA in the nonintercalating mode, which is considered as a new mechanism of action. CONCLUSION These results suggest that the WTN may exert its biological effects, at least in part, via interaction with DNA.
Collapse
Affiliation(s)
- Shiva Mehran
- Department of Biology, Higher Education Institute of Rabe-Rashidi, Tabriz, Iran
| | - Yousef Rasmi
- Department of Biochemistry, Faculty of Medicine, Urmia University of Medical Science, Urmia, Iran
| | - Hamid Reza Karamdel
- Department of Biochemistry, Faculty of Medicine, Urmia University of Medical Science, Urmia, Iran
| | - Ramin Hossinzadeh
- Department of Microbiology, Urmia Branch, Islamic Azad University, Urmia, Iran
| | - Zafar Gholinejad
- Department of Medical Laboratory Science, Urmia Branch, Islamic Azad University, Urmia, Iran
| |
Collapse
|
6
|
Guazzelli E, Masotti E, Biver T, Pucci A, Martinelli E, Galli G. The self-assembly over nano- to submicro-length scales in water of a fluorescent julolidine-labeled amphiphilic random terpolymer. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.28955] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Elisa Guazzelli
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
| | - Elena Masotti
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
| | - Tarita Biver
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
| | - Andrea Pucci
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
- INSTM, UdR Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
| | - Elisa Martinelli
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
- INSTM, UdR Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
| | - Giancarlo Galli
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
- INSTM, UdR Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
| |
Collapse
|
7
|
Interaction with calf-thymus DNA and photoinduced cleavage of pBR322 by rhodium(III) and iridium(III) complexes containing crown thioether ligands. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.10.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
8
|
DNA/BSA binding ability and genotoxic effect of mono- and binuclear copper (II) complexes containing a Schiff base derived from salicylaldehyde and D, L-glutamic acid. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2016.11.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
9
|
Imidazolyl-Naphthalenediimide-Based Threading Intercalators of DNA. Chembiochem 2016; 17:2162-2171. [DOI: 10.1002/cbic.201600478] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Indexed: 12/22/2022]
|
10
|
Wang M, Yu Y, Liang C, Lu A, Zhang G. Recent Advances in Developing Small Molecules Targeting Nucleic Acid. Int J Mol Sci 2016; 17:ijms17060779. [PMID: 27248995 PMCID: PMC4926330 DOI: 10.3390/ijms17060779] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 05/01/2016] [Accepted: 05/09/2016] [Indexed: 12/19/2022] Open
Abstract
Nucleic acids participate in a large number of biological processes. However, current approaches for small molecules targeting protein are incompatible with nucleic acids. On the other hand, the lack of crystallization of nucleic acid is the limiting factor for nucleic acid drug design. Because of the improvements in crystallization in recent years, a great many structures of nucleic acids have been reported, providing basic information for nucleic acid drug discovery. This review focuses on the discovery and development of small molecules targeting nucleic acids.
Collapse
Affiliation(s)
- Maolin Wang
- Institute of Integrated Bioinfomedicine and Translational Science (IBTS), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Shenzhen Lab of Combinatorial Compounds and Targeted Drug Delivery, HKBU Institute of Research and Continuing Education, Shenzhen 518000, China.
- Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Yuanyuan Yu
- Institute of Integrated Bioinfomedicine and Translational Science (IBTS), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Shenzhen Lab of Combinatorial Compounds and Targeted Drug Delivery, HKBU Institute of Research and Continuing Education, Shenzhen 518000, China.
- Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Chao Liang
- Institute of Integrated Bioinfomedicine and Translational Science (IBTS), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Shenzhen Lab of Combinatorial Compounds and Targeted Drug Delivery, HKBU Institute of Research and Continuing Education, Shenzhen 518000, China.
- Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Aiping Lu
- Institute of Integrated Bioinfomedicine and Translational Science (IBTS), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Shenzhen Lab of Combinatorial Compounds and Targeted Drug Delivery, HKBU Institute of Research and Continuing Education, Shenzhen 518000, China.
- Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Ge Zhang
- Institute of Integrated Bioinfomedicine and Translational Science (IBTS), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Shenzhen Lab of Combinatorial Compounds and Targeted Drug Delivery, HKBU Institute of Research and Continuing Education, Shenzhen 518000, China.
- Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| |
Collapse
|
11
|
Sanju KS, Thurakkal S, Neelakandan PP, Joseph J, Ramaiah D. Simultaneous binding of a cyclophane and classical intercalators to DNA: observation of FRET-mediated white light emission. Phys Chem Chem Phys 2015; 17:13495-500. [DOI: 10.1039/c5cp00208g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
FRET tuning in ternary systems consisting of DNA, an anthracene based cyclophane and a DNA mono-/bis-intercalator is reported.
Collapse
Affiliation(s)
- Krishnankutty S. Sanju
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Thiruvananthapuram 695019
- India
| | - Shameel Thurakkal
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Thiruvananthapuram 695019
- India
| | - Prakash P. Neelakandan
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Thiruvananthapuram 695019
- India
| | - Joshy Joseph
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Thiruvananthapuram 695019
- India
| | - Danaboyina Ramaiah
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Thiruvananthapuram 695019
- India
| |
Collapse
|
12
|
Batabyal S, Mondol T, Choudhury S, Mazumder A, Pal SK. Ultrafast interfacial solvation dynamics in specific protein DNA recognition. Biochimie 2013; 95:2168-76. [DOI: 10.1016/j.biochi.2013.08.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 08/06/2013] [Indexed: 12/14/2022]
|
13
|
A Potential Carcinogenic Pyrene Derivative under Förster Resonance Energy Transfer to Various Energy Acceptors in Nanoscopic Environments. Chemphyschem 2013; 14:3581-93. [DOI: 10.1002/cphc.201300568] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2013] [Indexed: 11/07/2022]
|
14
|
Sheng J, Gan J, Huang Z. Structure-based DNA-targeting strategies with small molecule ligands for drug discovery. Med Res Rev 2013; 33:1119-73. [PMID: 23633219 DOI: 10.1002/med.21278] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Nucleic acids are the molecular targets of many clinical anticancer drugs. However, compared with proteins, nucleic acids have traditionally attracted much less attention as drug targets in structure-based drug design, partially because limited structural information of nucleic acids complexed with potential drugs is available. Over the past several years, enormous progresses in nucleic acid crystallization, heavy-atom derivatization, phasing, and structural biology have been made. Many complicated nucleic acid structures have been determined, providing new insights into the molecular functions and interactions of nucleic acids, especially DNAs complexed with small molecule ligands. Thus, opportunities have been created to further discover nucleic acid-targeting drugs for disease treatments. This review focuses on the structure studies of DNAs complexed with small molecule ligands for discovering lead compounds, drug candidates, and/or therapeutics.
Collapse
Affiliation(s)
- Jia Sheng
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, USA
| | | | | |
Collapse
|
15
|
Sathiya Kamatchi T, Chitrapriya N, Kim SK, Fronczek FR, Natarajan K. Influence of carboxylic acid functionalities in ruthenium (II) polypyridyl complexes on DNA binding, cytotoxicity and antioxidant activity: Synthesis, structure and in vitro anticancer activity. Eur J Med Chem 2013; 59:253-64. [DOI: 10.1016/j.ejmech.2012.11.024] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Revised: 10/22/2012] [Accepted: 11/17/2012] [Indexed: 11/17/2022]
|
16
|
Zhao XL, Ma YZ, Wang KZ. Synthesis, pH-induced “on–off–on” luminescence switching, and partially intercalative DNA-binding and DNA photocleavage properties of an β-d-allopyranoside-grafted ruthenium(II) complex. J Inorg Biochem 2012; 113:66-76. [DOI: 10.1016/j.jinorgbio.2012.03.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2012] [Revised: 03/28/2012] [Accepted: 03/29/2012] [Indexed: 11/15/2022]
|
17
|
Banerjee S, Tachiya M, Pal SK. Caffeine-Mediated Detachment of Mutagenic Ethidium from Various Nanoscopic Micelles: An Ultrafast Förster Resonance Energy Transfer Study. J Phys Chem B 2012; 116:7841-8. [DOI: 10.1021/jp302734e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Soma Banerjee
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 098, India
| | - Masanori Tachiya
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Ibaraki 305-8565, Japan
| | - Samir Kumar Pal
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 098, India
| |
Collapse
|
18
|
Zhang AG, Zhang YZ, Duan ZM, Wang KZ, Wei HB, Bian ZQ, Huang CH. Dual Molecular Light Switches for pH and DNA Based on a Novel Ru(II) Complex. A Non-Intercalating Ru(II) Complex for DNA Molecular Light Switch. Inorg Chem 2011; 50:6425-36. [DOI: 10.1021/ic102126m] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- An-Guo Zhang
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - You-Zhuan Zhang
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Zhi-Ming Duan
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Ke-Zhi Wang
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Hui-Bo Wei
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Zu-Qiang Bian
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Chun-Hui Huang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| |
Collapse
|
19
|
Ilanchelian M, Ramaraj R. Binding Interactions of Toluidine Blue O with Escherichia Coli DNA: Formation of Bridged Structure. J Fluoresc 2011; 21:1439-53. [DOI: 10.1007/s10895-010-0829-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2010] [Accepted: 12/29/2010] [Indexed: 10/18/2022]
|
20
|
Makhal A, Sarkar S, Bora T, Baruah S, Dutta J, Raychaudhuri AK, Pal SK. Dynamics of light harvesting in ZnO nanoparticles. NANOTECHNOLOGY 2010; 21:265703. [PMID: 20522931 DOI: 10.1088/0957-4484/21/26/265703] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We have explored light harvesting of the complex of ZnO nanoparticles with the biological probe Oxazine 1 in the near-infrared region using picosecond-time-resolved fluorescence decay studies. We have used ZnO nanoparticles and Oxazine 1 as a model donor and acceptor, respectively, to explore the efficacy of the Förster resonance energy transfer (FRET) in the nanoparticle-dye system. It has been shown that FRET from the states localized near the surface and those in the bulk of the ZnO nanoparticles can be resolved by measuring the resonance efficiency for various wavelengths of the emission spectrum. It has been observed that the states located near the surface for the nanoparticles (contributing to visible emission at lambda approximately 550 nm) can contribute to very high efficiency (>90%) FRET. The efficiency of light harvesting dynamics of the ZnO nanorods has also been explored in this study and they were found to have much less efficiency (approximately 40%) for energy transfer compared to the nanoparticles. The possibility of an electron transfer reaction has been ruled out from the picosecond-resolved fluorescence decay of the acceptor dye at the ZnO surface.
Collapse
Affiliation(s)
- Abhinandan Makhal
- Unit for Nano Science and Technology, S N Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 098, India
| | | | | | | | | | | | | |
Collapse
|
21
|
Banerjee D, Makhal A, Pal SK. Sequence dependent femtosecond-resolved hydration dynamics in the minor groove of DNA and histone-DNA complexes. J Fluoresc 2009; 19:1111-8. [PMID: 19565329 DOI: 10.1007/s10895-009-0512-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2009] [Accepted: 06/22/2009] [Indexed: 10/20/2022]
Abstract
Understanding the sequence dependent molecular recognition of DNA is crucial for the rational design of many drugs. Femtosecond resolved studies on the hydration dynamics of the dodecamer duplexes having sequences (CGCGAATTCGCG)2 and (CGCAAATTTGCG)2, and their complexes with the nucleic protein histone 1 (H1) reveal significant correlation of the molecular recognition of the DNA and DNA-protein complexes with the dynamics of hydration. The different molecular recognition of DNA and DNA-protein complexes is also borne out by circular dichroism (CD) and fluorescence detected CD measurements.
Collapse
Affiliation(s)
- Debapriya Banerjee
- Unit for Nano Science & Technology, Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 098, India
| | | | | |
Collapse
|