1
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Yang P, Wang W, Hu Y, Wang Y, Xu Z, Liao X. Exploring high hydrostatic pressure effects on anthocyanin binding to serum albumin and food-derived transferrins. Food Chem 2024; 452:139544. [PMID: 38723571 DOI: 10.1016/j.foodchem.2024.139544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 04/20/2024] [Accepted: 05/01/2024] [Indexed: 06/01/2024]
Abstract
This study investigated the effects of high hydrostatic pressure (HHP) on the binding interactions of cyanindin-3-O-glucoside (C3G) to bovine serum albumin, human serum albumin (HSA), bovine lactoferrin, and ovotransferrin. Fluorescence quenching revealed that HHP reduced C3G-binding affinity to HSA, while having a largely unaffected role for the other proteins. Notably, pretreating HSA at 500 MPa significantly increased its dissociation constant with C3G from 24.7 to 34.3 μM. Spectroscopic techniques suggested that HSA underwent relatively pronounced tertiary structural alterations after HHP treatments. The C3G-HSA binding mechanisms under pressure were further analyzed through molecular dynamics simulation. The localized structural changes in HSA under pressure might weaken its interaction with C3G, particularly polar interactions such as hydrogen bonds and electrostatic forces, consequently leading to a decreased binding affinity. Overall, the importance of pressure-induced structural alterations in proteins influencing their binding with anthocyanins was highlighted, contributing to optimizing HHP processing for anthocyanin-based products.
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Affiliation(s)
- Peiqing Yang
- Beijing Key Laboratory for Food Non-thermal processing, Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Fruit & Vegetable Processing, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Wenxin Wang
- Beijing Key Laboratory for Food Non-thermal processing, Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Fruit & Vegetable Processing, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Yichen Hu
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industralization, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, Sichuan, China.
| | - Yongtao Wang
- Beijing Key Laboratory for Food Non-thermal processing, Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Fruit & Vegetable Processing, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Zhenzhen Xu
- Beijing Key Laboratory for Food Non-thermal processing, Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Fruit & Vegetable Processing, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; Institute of Quality Standard & Testing Technology for Agro-Products, Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Xiaojun Liao
- Beijing Key Laboratory for Food Non-thermal processing, Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Fruit & Vegetable Processing, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
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2
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Yoshida K. Chemical and biological study of flavonoid-related plant pigment: current findings and beyond. Biosci Biotechnol Biochem 2024; 88:705-718. [PMID: 38632052 DOI: 10.1093/bbb/zbae048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 04/11/2024] [Indexed: 04/19/2024]
Abstract
Flavonoids are polyphenolic plant constituents. Anthocyanins are flavonoid pigments found in higher plants that show a wide variety of colors ranging from red through purple to blue. The blue color of the flowers is mostly attributed to anthocyanins. However, only a few types of anthocyanidin, chromophore of anthocyanin, exist in nature, and the extracted pigments are unstable with the color fading away. Therefore, the wide range and stable nature of colors in flowers have remained a mystery for more than a century. The mechanism underlying anthocyanin-induced flower coloration was studied using an interdisciplinary method involving chemistry and biology. Furthermore, the chemical studies on flavonoid pigments in various edible plants, synthetic and biosynthetic studies on anthocyanins were conducted. The results of these studies have been outlined in this review.
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Affiliation(s)
- Kumi Yoshida
- Emeritus professor, Nagoya University, Chikusa, Nagoya, Japan
- Faculty of Food and Health Sciences, Aichi Shukutoku University, Katahira, Nagakute, Japan
- Faculty of Engineering, Aichi Institute of Technology, Yachigusa, Yakusa, Toyota, Japan
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3
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Bahreini Z, Abedi M, Ashori A, Parach A. Extraction and characterization of anthocyanin pigments from Iris flowers and metal complex formation. Heliyon 2024; 10:e31795. [PMID: 38832280 PMCID: PMC11145348 DOI: 10.1016/j.heliyon.2024.e31795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 06/05/2024] Open
Abstract
Exploring the chemical processes and factors influencing the stability of the blue color derived from anthocyanins is a crucial objective in agricultural and food chemistry research. The ability of these compounds to bind with metals could potentially stabilize anthocyanins extracted from plant-based foods or enable modifying their hues for application as natural food colorants. This study had two core objectives - first, to extract and identify the major anthocyanin pigments responsible for iris flower coloration. Second, to selectively complex purified iris anthocyanins with aluminum (Al3+) and copper (Cu2+) ions, probing the coordination chemistry underlying synthetic metalloanthocyanin formation. Fresh iris flowers were collected and anthocyanins extracted using an optimized acidic solution. After separation, anthocyanins were complexed with metals Al3+ and Cu2+ at pH 5-6 to understand better the evolution of blue and green colors in anthocyanin-metal chelates. Characterization of anthocyanins and their metal complexes utilized UV-visible spectrometry, colorimetry (L\* a\*b\* values), FTIR spectroscopy, and LC-MS. Metal complexation of anthocyanins exhibited bathochromic shifts of visible absorption maxima from 538 to 584 nm for Al-complex and 538-700 nm for Cu-complex. Color changes were accompanied by decreased lightness (L\*, from 87 to 81) and color coefficients a\* (+5.4 to -6.8) and b\* (-12.2 to -4.8). LC-MS analysis identified five major anthocyanin aglycones: cyanidin (Cyd, m/z 289), delphinidin (Dpd, m/z 305), petunidin (Ptd, m/z 229), malvidin (Mv, m/z 329) and pelargonidin (m/z 273), along with various glycosylated derivatives. This work successfully isolated key iris anthocyanin pigments and elucidated their metal chelation interactions underlying expanded floral color production, bridging knowledge gaps about this underexplored genus.
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Affiliation(s)
- Zaker Bahreini
- Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
| | - Mohammad Abedi
- Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
| | - Alireza Ashori
- Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
| | - Ali Parach
- Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
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4
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Cunha M, de Freitas V, Borges J, Mano JF, Rodrigues JMM, Cruz L. Acidochromic Free-Standing Multilayered Chitosan-Pyranoflavylium/Alginate Membranes toward Food Smart Packaging Applications. ACS APPLIED POLYMER MATERIALS 2024; 6:6820-6830. [PMID: 38903401 PMCID: PMC11186008 DOI: 10.1021/acsapm.4c01085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/17/2024] [Accepted: 05/21/2024] [Indexed: 06/22/2024]
Abstract
Food smart packaging has emerged as a promising technology to address consumer concerns regarding food conservation and food safety. In this context, we report the rational design of azide-containing pyranoflavylium-based pH-sensitive dye for subsequent click chemistry conjugation toward a chitosan-modified alkyne. The chitosan-pyranoflavylium conjugate was characterized by infrared (ATR-FTIR), ultraviolet-visible (UV-vis), nuclear magnetic resonance (NMR) spectroscopies, and dynamic light scattering (DLS), as well as its thermodynamic parameters related to their pH-dependent chromatic features. The fabrication of thin-films through electrostatic-driven layer-by-layer (LbL) assembly technology was first screened by quartz crystal microbalance with dissipation monitoring (QCM-D) onto gold substrates, and then free-standing (FS) multilayered membranes from polypropylene substrate were obtained using a homemade automatic dipping robot. The membranes' characterization included morphology analysis and thickness evaluation, assessed by scanning electron microscopy (SEM), pH-responsive color change performance tests using buffer solutions at different pH levels, and biogenic amines-enriched model solutions, demonstrating the feasibility and effectiveness of the chitosan-pyranoflavylium/alginate biomembranes for food spoilage monitoring. This work provides insights toward the development of innovative pH-responsive smart biomaterials for advanced and sustainable technological packaging solutions, which could significantly contribute to ensuring food safety and quality, while reducing food waste.
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Affiliation(s)
- Mariana Cunha
- REQUIMTE/LAQV,
Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 687, 4169-007, Porto, Portugal
| | - Victor de Freitas
- REQUIMTE/LAQV,
Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 687, 4169-007, Porto, Portugal
| | - João Borges
- CICECO
- Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário
de Santiago, 3810-193 Aveiro, Portugal
| | - João F. Mano
- CICECO
- Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário
de Santiago, 3810-193 Aveiro, Portugal
| | - João M. M. Rodrigues
- CICECO
- Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário
de Santiago, 3810-193 Aveiro, Portugal
| | - Luís Cruz
- REQUIMTE/LAQV,
Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 687, 4169-007, Porto, Portugal
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5
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de Souza HKS, Guimarães M, Mateus N, de Freitas V, Cruz L. Chitosan/Polyvinyl Alcohol-Based Biofilms Using Ternary Deep Eutectic Solvents towards Innovative Color-Stabilizing Systems for Anthocyanins. Int J Mol Sci 2024; 25:6154. [PMID: 38892341 PMCID: PMC11173141 DOI: 10.3390/ijms25116154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024] Open
Abstract
Anthocyanins are amazing plant-derived colorants with highly valuable properties; however, their chemical and color instability issues limit their wide application in different food industry-related products such as active and intelligent packaging. In a previous study, it was demonstrated that anthocyanins could be stabilized into green plasticizers namely deep eutectic solvents (DESs). In this work, the fabrication of edible films by integrating anthocyanins along with DESs into biocompatible chitosan (CHT)-based formulations enriched with polyvinyl alcohol (PVA) and PVA nanoparticles was investigated. CHT/PVA-DES films' physical properties were characterized by scanning electron microscopy, water vapor permeability, swelling index, moisture sorption isotherm, and thermogravimetry analysis. Innovative red-to-blue formulation films were achieved for CHT/PVA nanoparticles (for 5 min of sonication) at a molar ratio 1:1, and with 10% of ternary DES (TDES)-containing malvidin-3-glucoside (0.1%) where the physical properties of films were enhanced. After immersion in solutions at different pH values, films submitted to pHs 5-8 were revealed to be more color stable and resistant with time than at acidic pH values.
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Affiliation(s)
- Hiléia K. S. de Souza
- REQUIMTE/LAQV, Chemistry and Biochemistry Department, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal; (H.K.S.d.S.); (M.G.); (N.M.); (V.d.F.)
- PIEP—Pólo de Inovação em Engenharia de Polímeros, Universidade do Minho, Campus de Azurém, Edifício 15, 4800-058 Guimarães, Portugal
| | - Marta Guimarães
- REQUIMTE/LAQV, Chemistry and Biochemistry Department, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal; (H.K.S.d.S.); (M.G.); (N.M.); (V.d.F.)
| | - Nuno Mateus
- REQUIMTE/LAQV, Chemistry and Biochemistry Department, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal; (H.K.S.d.S.); (M.G.); (N.M.); (V.d.F.)
| | - Victor de Freitas
- REQUIMTE/LAQV, Chemistry and Biochemistry Department, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal; (H.K.S.d.S.); (M.G.); (N.M.); (V.d.F.)
| | - Luís Cruz
- REQUIMTE/LAQV, Chemistry and Biochemistry Department, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal; (H.K.S.d.S.); (M.G.); (N.M.); (V.d.F.)
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6
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Tong W, Zhai H, Qi M, Hua Y, Shi T, Shang H, Shi Y, Duan C, Lan Y. Characterization of chemical and sensory properties of Cabernet Sauvignon and Marselan wines made by flash détente technique. Food Res Int 2024; 184:114229. [PMID: 38609216 DOI: 10.1016/j.foodres.2024.114229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/09/2024] [Accepted: 03/12/2024] [Indexed: 04/14/2024]
Abstract
This study aimed to characterize the sensory profiles of wines produced using the flash détente (FD) technique and to identify the flavor compounds contributing to the sensory characteristics. The FD technique was applied to two major grape varieties, Cabernet Sauvignon and Marselan, from the Changli region of China to produce high-quality wines with aging potential. Compared to the traditional macerated wines, the FD wines showed greater color intensity, mainly due to the higher levels of anthocyanins. Regarding the aroma characteristics, FD wines were found to have a more pronounced fruitness, especially fresh fruit note, which was due to the contribution of higher concentration of esters. Concurrently, FD wines showed an increased sweet note which was associated with increased lactones and furanones. In addition, FD wines exhibited reduced green and floral notes due to lower levels of C6 alcohols and C13-norisoprenoids. With regard to mouthfeel, FD wines presented greater astringency and bitterness, which was due to the higher levels of phenolics. The total concentration of condensed tannins and condensed tannins for each degree of polymerization was considerably higher in FD wines due to the strong extraction of the FD technique. A significant increase in grape-derived polysaccharides and glycerol was also found in FD wines, contributing to a fuller body. This study contributed to an increase in the knowledge of the Changli region and demonstrated that the FD technique could be applied to the wine production in this region to address the negative impacts of rainfall in individual vintages.
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Affiliation(s)
- Wenzhe Tong
- Center for Viticulture and Enology, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Hongyue Zhai
- Center for Viticulture and Enology, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Mengyao Qi
- Center for Viticulture and Enology, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Yubo Hua
- Hebei Wine Industrial Technology Institute, Changli 066600, Hebei Province, China
| | - Tonghua Shi
- Hebei Wine Industrial Technology Institute, Changli 066600, Hebei Province, China
| | - Hua Shang
- COFCO Great Wall Winery (Ningxia) Co., Ltd., Yinchuan 750000, Ningxia Province, China
| | - Ying Shi
- Center for Viticulture and Enology, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Changqing Duan
- Center for Viticulture and Enology, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Yibin Lan
- Center for Viticulture and Enology, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China.
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7
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Mora N, Rosa M, Touaibia M, Martin LJ. Effects of Red Sorghum-Derived Deoxyanthocyanidins and Their O-β-D-Glucosides on E-Cadherin Promoter Activity in PC-3 Prostate Cancer Cells. Molecules 2024; 29:1891. [PMID: 38675711 PMCID: PMC11054106 DOI: 10.3390/molecules29081891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/16/2024] [Accepted: 04/20/2024] [Indexed: 04/28/2024] Open
Abstract
Although much less common than anthocyanins, 3-Deoxyanthocyanidins (3-DAs) and their glucosides can be found in cereals such as red sorghum. It is speculated that their bioavailability is higher than that of anthocyanins. Thus far, little is known regarding the therapeutic effects of 3-DAs and their O-β-D-glucosides on cancer, including prostate cancer. Thus, we evaluated their potential to decrease cell viability, to modulate the activity of transcription factors such as NFκB, CREB, and SOX, and to regulate the expression of the gene CDH1, encoding E-Cadherin. We found that 4',7-dihydroxyflavylium chloride (P7) and the natural apigeninidin can reduce cell viability, whereas 4',7-dihydroxyflavylium chloride (P7) and 4'-hydroxy-7-O-β-D-glucopyranosyloxyflavylium chloride (P3) increase the activities of NFkB, CREB, and SOX transcription factors, leading to the upregulation of CDH1 promoter activity in PC-3 prostate cancer cells. Thus, these compounds may contribute to the inhibition of the epithelial-to-mesenchymal transition in cancer cells and prevent the metastatic activity of more aggressive forms of androgen-resistant prostate cancer.
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Affiliation(s)
- Nathalie Mora
- UMR408 INRA–UAPV, SQPO, Qualim, University Avignon, Campus Jean-Henri Fabre, Pôle Agrosciences, 301, Rue Baruch de Spinoza, 84911 Avignon, France; (N.M.); (M.R.)
| | - Maxence Rosa
- UMR408 INRA–UAPV, SQPO, Qualim, University Avignon, Campus Jean-Henri Fabre, Pôle Agrosciences, 301, Rue Baruch de Spinoza, 84911 Avignon, France; (N.M.); (M.R.)
| | - Mohamed Touaibia
- Chemistry and Biochemistry Department, Université de Moncton, Moncton, NB E1A 3E9, Canada;
| | - Luc J. Martin
- Biology Department, Université de Moncton, Moncton, NB E1A 3E9, Canada
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8
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Chen C, Dou Y, Liu W, Li Z, Chen L, Wang H, Wang X, Liu W. Two-photon fluorescence probe for palladium with perchlorate induced quenching mechanism and its application in smartphone-based rapid detection. JOURNAL OF HAZARDOUS MATERIALS 2024; 463:132859. [PMID: 37913661 DOI: 10.1016/j.jhazmat.2023.132859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/10/2023] [Accepted: 10/23/2023] [Indexed: 11/03/2023]
Abstract
We propose a new approach for detecting palladium using a two-photon fluorescent probe quenched by perchlorate. This newly developed method has the potential to overcome some of the limitations of the currently available methods for detecting palladium. This article provides a detailed introduction to the design and synthesis of fluorescent probe, as well as the fluorescence performance in aqueous solutions. The results demonstrate the probe is highly sensitive, selective, and efficient in detecting palladium. The study also includes a thorough analysis of the quenching mechanism of the probe by perchlorate, and obtained different results from previous literatures. Moreover, the probe can easily identify and differentiate between palladium being present in the valence states 0, + 2/+ 4, and accomplish detecting palladium in convoluted solutions such as wastewater, environmental water, Hela cells and zebrafish. Due to its excellent performance, using self-developed optical device, the possibility of detecting palladium in aqueous solutions based on smartphone was explored.
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Affiliation(s)
- Chunyang Chen
- Jiangsu Key Laboratory of Environmental Science and Engineering, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Yuemao Dou
- Jiangsu Key Laboratory of Environmental Science and Engineering, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Wei Liu
- Institute of National Nuclear Industry, Frontiers Science Center for Rare Isotope, School of Nuclear Science and Technology, Key Laboratory of Special Function Materials and Structure Design, Ministry of Education, Lanzhou University, Lanzhou 730000, China
| | - Zhongjie Li
- Jiangsu Key Laboratory of Environmental Science and Engineering, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Longtian Chen
- Jiangsu Key Laboratory of Environmental Science and Engineering, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Huili Wang
- Jiangsu Key Laboratory of Environmental Science and Engineering, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xuedong Wang
- Jiangsu Key Laboratory of Environmental Science and Engineering, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Weisheng Liu
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Special unction Materials and Structure Design, Ministry of Education, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
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9
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Munan S, Chang YT, Samanta A. Chronological development of functional fluorophores for bio-imaging. Chem Commun (Camb) 2024; 60:501-521. [PMID: 38095135 DOI: 10.1039/d3cc04895k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Functional fluorophores represent an emerging research field, distinguished by their diverse applications, especially in sensing and cellular imaging. After the discovery of quinine sulfate and subsequent elucidation of the fluorescence mechanism by Sir George Stokes, research in the field of fluorescence gained momentum. Over the past few decades, advancements in sophisticated instruments, including super-resolution microscopy, have further promoted cellular imaging using traditional fluorophores. These advancements include deciphering sensing mechanisms via photochemical reactions and scrutinizing the applications of fluorescent probes that specifically target organelles. This approach elucidates molecular interactions with biomolecules. Despite the abundance of literature illustrating different classes of probe development, a concise summary of newly developed fluorophores remains inadequate. In this review, we systematically summarize the chronological discovery of traditional fluorophores along with new fluorophores. We briefly discuss traditional fluorophores ranging from visible to near-infrared (NIR) in the context of cellular imaging and in vivo imaging. Furthermore, we explore ten new core fluorophores developed between 2007 and 2022, which exhibit advanced optical properties, providing new insights into bioimaging. We illustrate the utilization of new fluorophores in cellular imaging of biomolecules, such as reactive oxygen species (ROS), reactive nitrogen species (RNS), and proteins and microenvironments, especially pH and viscosity. Few of the fluorescent probes provided new insights into disease progression. Furthermore, we speculate on the potential prospects and significant challenges of existing fluorophores and their potential biomedical research applications. By addressing these aspects, we intend to illuminate the compelling advancements in fluorescent probe development and their potential influence across various fields.
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Affiliation(s)
- Subrata Munan
- Molecular Sensors and Therapeutics (MST) Research Laboratory, Department of Chemistry, School of Natural Sciences, Shiv Nadar Institution of Eminence, Delhi NCR, NH 91, Tehsil Dadri 201314, Uttar Pradesh, India.
| | - Young-Tae Chang
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea.
| | - Animesh Samanta
- Molecular Sensors and Therapeutics (MST) Research Laboratory, Department of Chemistry, School of Natural Sciences, Shiv Nadar Institution of Eminence, Delhi NCR, NH 91, Tehsil Dadri 201314, Uttar Pradesh, India.
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10
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Lu H, Zheng Z, Hou H, Bai Y, Qiu J, Wang J, Lin J. Fine-Tuning X-Ray Sensitivity in Organic-Inorganic Hybrids via an Unprecedented Mixed-Ligand Strategy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305378. [PMID: 37939314 PMCID: PMC10767407 DOI: 10.1002/advs.202305378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/21/2023] [Indexed: 11/10/2023]
Abstract
Crystalline organic-inorganic hybrids, which exhibit colorimetric responses to ionizing radiation, have recently been recognized as promising alternatives to conventional X-ray dosimeters. However, X-ray-responsive organic-inorganic hybrids are scarce and the strategy to fine-tune their detection sensitivity remains elusive. Herein, an unprecedented mixed-ligand strategy is reported to modulate the X-ray detection efficacy of organic-inorganic hybrids. Deliberately blending the stimuli-responsive terpyridine carboxylate ligand (tpc- ) and the auxiliary pba- group with different ratios gives rise to two OD thorium-bearing clusters (Th-102 and Th-103) and a 1D coordination polymer (Th-104). Notably, distinct X-ray sensitivity is evident as a function of molar ratio of the tpc- ligand, following the trend of Th-102 > Th-103 > Th-104. Moreover, Th-102, which is exclusively built from the tpc- ligands with the highest degree of π-π interactions, exhibits the most sensitive radiochromic and fluorochromic responses toward X-ray with the lowest detection limit of 1.5 mGy. The study anticipates that this mixed-ligand strategy will be a versatile approach to tune the X-ray sensing efficacy of organic-inorganic hybrids.
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Affiliation(s)
- Huangjie Lu
- Shanghai Institute of Applied PhysicsChinese Academy of Sciences2019 Jia Luo RoadShanghai201800P. R. China
| | - Zhaofa Zheng
- Shanghai Institute of Applied PhysicsChinese Academy of Sciences2019 Jia Luo RoadShanghai201800P. R. China
| | - Huiliang Hou
- Shanghai Institute of Applied PhysicsChinese Academy of Sciences2019 Jia Luo RoadShanghai201800P. R. China
| | - Yaoyao Bai
- School of Nuclear Science and TechnologyXi'an Jiaotong UniversityNo.28, West Xianning RoadXi'an710049P. R. China
| | - Jie Qiu
- School of Nuclear Science and TechnologyXi'an Jiaotong UniversityNo.28, West Xianning RoadXi'an710049P. R. China
| | - Jian‐Qiang Wang
- Shanghai Institute of Applied PhysicsChinese Academy of Sciences2019 Jia Luo RoadShanghai201800P. R. China
| | - Jian Lin
- School of Nuclear Science and TechnologyXi'an Jiaotong UniversityNo.28, West Xianning RoadXi'an710049P. R. China
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11
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Silori Y, Chawla S, De AK, Shirke RP, Grover J, Ramasastry SSV, Sathyamurthy N. Spectral characteristics of the flavones and anthocyanins present in passionflower (Passiflora incarnata). Photochem Photobiol 2023. [PMID: 38148662 DOI: 10.1111/php.13893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/23/2023] [Accepted: 11/25/2023] [Indexed: 12/28/2023]
Abstract
Rich in antioxidants with a variety of flavones and anthocyanins, passionflower/fruit has been extensively used in food, beverage, medicinal, and natural dyes industries. The individual components present in passionflower are identified by extracting them in methanol, partitioning them between ethyl acetate and aqueous layers, and recording their ESI mass spectrometric data. The steady-state absorption and fluorescence spectra of the extract in methanol and dimethyl sulfoxide are recorded and the lifetime of the fluorescing species is reported. The pH dependence of the absorption spectrum confirms the presence of the anthocyanins.
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Affiliation(s)
- Yogita Silori
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, SAS Nagar, Punjab, India
| | - Sakshi Chawla
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, SAS Nagar, Punjab, India
| | - Arijit Kumar De
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, SAS Nagar, Punjab, India
| | - Rajendra P Shirke
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, SAS Nagar, Punjab, India
| | - Jagdeep Grover
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, SAS Nagar, Punjab, India
| | - S S V Ramasastry
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, SAS Nagar, Punjab, India
| | - Narayanasami Sathyamurthy
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, SAS Nagar, Punjab, India
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12
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Kossyvaki D, Bustreo M, Contardi M, Athanassiou A, Fragouli D. Functional Polymeric Membranes with Antioxidant Properties for the Colorimetric Detection of Amines. SENSORS (BASEL, SWITZERLAND) 2023; 23:9288. [PMID: 38005674 PMCID: PMC10675507 DOI: 10.3390/s23229288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 11/26/2023]
Abstract
Herein, the ability of highly porous colorimetric indicators to sense volatile and biogenic amine vapors in real time is presented. Curcumin-loaded polycaprolactone porous fiber mats are exposed to various concentrations of off-flavor compounds such as the volatile amine trimethylamine, and the biogenic amines cadaverine, putrescine, spermidine, and histamine, in order to investigate their colorimetric response. CIELAB color space analysis demonstrates that the porous fiber mats can detect the amine vapors, showing a distinct color change in the presence of down to 2.1 ppm of trimethylamine and ca. 11.0 ppm of biogenic amines, surpassing the limit of visual perception in just a few seconds. Moreover, the color changes are reversible either spontaneously, in the case of the volatile amines, or in an assisted way, through interactions with an acidic environment, in the case of the biogenic amines, enabling the use of the same indicator several times. Finally, yet importantly, the strong antioxidant activity of the curcumin-loaded fibers is successfully demonstrated through DPPH● and ABTS● radical scavenging assays. Through such a detailed study, we prove that the developed porous mats can be successfully established as a reusable smart system in applications where the rapid detection of alkaline vapors and/or the antioxidant activity are essential, such as food packaging, biomedicine, and environmental protection.
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Affiliation(s)
- Despoina Kossyvaki
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; (D.K.); (M.C.); (A.A.)
- Dipartimento di Informatica Bioingegneria, Robotica e Ingegneria dei Sistemi (DIBRIS), Università degli Studi di Genova, Via Opera Pia 13, 16145 Genova, Italy
| | - Matteo Bustreo
- Pattern Analysis and Computer Vision, Istituto Italiano di Tecnologia, Via Enrico Melen 83, 16152 Genova, Italy
| | - Marco Contardi
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; (D.K.); (M.C.); (A.A.)
| | - Athanassia Athanassiou
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; (D.K.); (M.C.); (A.A.)
| | - Despina Fragouli
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; (D.K.); (M.C.); (A.A.)
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13
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Moreira D, Regev O, Basílio N, Marques EF. Light and pH responsive catanionic vesicles based on a chalcone/flavylium photoswitch for smart drug delivery: From molecular design to the controlled release of doxorubicin. J Colloid Interface Sci 2023; 650:2024-2034. [PMID: 37536006 DOI: 10.1016/j.jcis.2023.07.129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/08/2023] [Accepted: 07/20/2023] [Indexed: 08/05/2023]
Abstract
Spatially and temporally localized delivery is a promising strategy to circumvent adverse effects of traditional drug therapy such as drug toxicity and prolonged treatments. Stimuli-responsive colloidal nanocarriers can be crucial to attain such goals. Here, we develop a delivery system based on dual light and pH responsive vesicles having a cationic bis-quat gemini surfactant, 12-2-12, and a negatively charged amphiphilic chalcone, C4SCh. The premise is to exploit the chalcone/flavylium interconversion to elicit a morphological change of the vesicles leading to the controlled release of an encapsulated drug. First, the phase behavior of the catanionic system is studied and the desirable composition yielding stable unilamellar vesicles identified and selected for further studies. The solutions containing vesicles (Dh ≈ 200 nm, ζ-potential ≈ 80 mV) are in-depth characterized by light microscopy, cryo-transmission electron microscopy (cryo-TEM), dynamic light scattering (DLS) and surface tension measurements. Upon subjecting the vesicles to UV irradiation (λ = 365 nm) at near neutral pH (≈ 6.0), no morphological effects are observed, yet when irradiation is coupled with pH = 3.0, the majority of the vesicles are disrupted into bilayer fragments. The anticancer drug doxorubicin (DOX) is successfully entrapped in the non-irradiated vesicles, yielding an encapsulation efficiency of ≈ 25% and a loading capacity of ≈ 3%. The release profile of the drug-loaded vesicles is then studied in vitro in four conditions: i) no stimuli (pH = 6.0); ii) irradiation, pH = 6.0; iii) no irradiation and adjusted pH = 3.0; iv) irradiation and adjusted pH = 3.0 Crucially, irradiation at pH = 3.0 leads to a sustained release of DOX to ca. 80% (within 4 h), whereas cases i) and ii) lead to only ≈ 25 % release and case iii) to 50% release but precipitation of the vesicles. Thus, our initial hypothesis is confirmed: we present a proof of concept delivery system where light and pH act as inputs of an AND logic gate mechanism for the controlled release of a relevant biomedical drug (output). This may prove useful if the irradiated nanocarriers meet acidified physiological environments such as tumors sites, endosomes or lysosomes.
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Affiliation(s)
- Dmitriy Moreira
- CIQUP, IMS (Institute of Molecular Sciences), Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal; LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Oren Regev
- Department of Chemical Engineering and (d)Ilse Katz Institute for Nanotechnology, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel
| | - Nuno Basílio
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - Eduardo F Marques
- CIQUP, IMS (Institute of Molecular Sciences), Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
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14
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Maity ML, Mahato S, Bandyopadhyay S. Visible-light-switchable Chalcone-Flavylium Photochromic Systems in Aqueous Media. Angew Chem Int Ed Engl 2023; 62:e202311551. [PMID: 37754675 DOI: 10.1002/anie.202311551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/23/2023] [Accepted: 09/25/2023] [Indexed: 09/28/2023]
Abstract
The chalcone-flavylium photochromic system switches in aqueous media. However, the chalcone→flavylium conversion requires detrimental ultra-violet (UV) light for the switching which deters their applications in the biological domain. To address this issue, we have synthesized strategically modified chalcone scaffolds that can be reversibly switched to the flavylium forms with visible light ranging from 456 nm (blue) to 640 nm (red).
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Affiliation(s)
- Manik Lal Maity
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, WB-741246, India
| | - Samyadeb Mahato
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, WB-741246, India
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada
| | - Subhajit Bandyopadhyay
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, WB-741246, India
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15
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Cheng X, Feng B, Chen F, Huang S, Zhang S, Gao F, Zeng W. Development of a Water-Soluble Fluorescent Probe Based on Natural Flavylium for Mercury(II) Ion Detection and Clinical Antidote Evaluation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:13263-13269. [PMID: 37639577 DOI: 10.1021/acs.jafc.3c04537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
The health hazard posed by Hg2+ makes it imperative to develop a fast and convenient means for detecting Hg2+ in water samples and living objects. While fluorescence sensing technology is considered a promising candidate, the poor water solubility and fluorescence quenching in aqueous solutions of most existing probes limit their practical application. To overcome this, we developed a natural flavylium-inspired fluorescent probe with excellent water solubility. Our probe demonstrated outstanding performance of high sensitivity (LOD = 0.47 nM), fast response (<10 min), and great selectivity for Hg2+. Notably, we validated its applicability in real water, urine samples, and living cells. Furthermore, the probe was successfully applied to evaluate the effectiveness of antidotes for clinical Hg2+ poisoning.
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Affiliation(s)
- Xiang Cheng
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, China
- The Molecular Imaging Research Center, Central South University, Changsha 410013, China
| | - Bin Feng
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, China
- The Molecular Imaging Research Center, Central South University, Changsha 410013, China
| | - Fei Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, China
- The Molecular Imaging Research Center, Central South University, Changsha 410013, China
| | - Shuai Huang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, China
- The Molecular Imaging Research Center, Central South University, Changsha 410013, China
| | - Shengwang Zhang
- The Molecular Imaging Research Center, Central South University, Changsha 410013, China
- The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Feng Gao
- The Molecular Imaging Research Center, Central South University, Changsha 410013, China
- The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Wenbin Zeng
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, China
- The Molecular Imaging Research Center, Central South University, Changsha 410013, China
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16
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Chotechuang N, Di Gianvincenzo P, Chen CG, Nardi AN, Padró D, Boonla C, Ortore MG, D' Abramo M, Moya SE. A study of cyanidin/alginate complexation: Influence of pH in assembly and chiral properties. Carbohydr Polym 2023; 315:120957. [PMID: 37230610 DOI: 10.1016/j.carbpol.2023.120957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/19/2023] [Accepted: 04/23/2023] [Indexed: 05/27/2023]
Abstract
Cyanidin 3-O-glucoside (CND) is a frequently-used anthocyanin that has excellent antioxidant properties but a limited bioavailability in bloodstream. Complexation of CND with alginate can improve its therapeutic outcome. Here we have studied the complexation of CND with alginate under a range of pH values from 2.5 to 5. CND is positively charged at low pH, and becomes neutral, and then negatively charged as pH increases. CND/alginate complexation was studied by dynamic light scattering, transmission electron microscopy, small angle X-ray scattering, STEM, UV-Vis spectroscopy and circular dichroism (CD). CND/alginate complexes at pH 4.0 and 5.0 form chiral fibres with a fractal structure. At these pH values, CD spectra show very intense bands, which are inverted compared with free CND. Complexation at lower pH results in disordered polymer structures and CD spectra show the same features as for CND in solution. Molecular dynamics simulations suggest the formation of parallel CND dimers through complexation with alginate at pH 3.0, while at pH 4.0 CND dimers form in a cross like arrangement.
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Affiliation(s)
- Nattida Chotechuang
- Department of Food Technology, Faculty of Science, Chulalongkorn University, 10330 Bangkok, Thailand; Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramon 182 C, 20014 Donostia-San Sebastian, Spain
| | - Paolo Di Gianvincenzo
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramon 182 C, 20014 Donostia-San Sebastian, Spain
| | - Cheng Giuseppe Chen
- Chemistry Department, "La Sapienza" University of Rome, P. le A. Moro 5, 00185 Rome, Italy
| | | | - Daniel Padró
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramon 182 C, 20014 Donostia-San Sebastian, Spain
| | - Chanchai Boonla
- Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, 10330 Bangkok, Thailand
| | - Maria Grazia Ortore
- Department of Life and Environmental Sciences, Marche Polytechnic University, Via Brecce Bianche, I-60130 Ancona, Italy
| | - Marco D' Abramo
- Chemistry Department, "La Sapienza" University of Rome, P. le A. Moro 5, 00185 Rome, Italy
| | - Sergio E Moya
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo Miramon 182 C, 20014 Donostia-San Sebastian, Spain.
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17
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Tang Y, Pan W, Yang Y. Silver-Catalyzed Chlorocyclization for the Synthesis of 3-Chloro-2 H-chromenes. J Org Chem 2023. [PMID: 37410887 DOI: 10.1021/acs.joc.2c02864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
A silver-catalyzed chlorocyclization reaction of aryl 3-aryl-2-propyn-1-yl ethers in the presence of NCS under darkness was accomplished, which provides a straightforward and efficient access to 3-chloro-2H-chromenes.
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Affiliation(s)
- Yunhao Tang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Gaohai Road, Guiyang 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang 550014, P. R. China
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, P. R. China
| | - Weidong Pan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Gaohai Road, Guiyang 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang 550014, P. R. China
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, P. R. China
| | - Yuzhu Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Gaohai Road, Guiyang 550014, P. R. China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang 550014, P. R. China
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18
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Wang W, Yang P, Xu Z, Zhao L, Wang Y, Liao X. Understanding the pH-dependent interaction of anthocyanin with two food-derived transferrins. Food Chem 2023; 410:135473. [PMID: 36641910 DOI: 10.1016/j.foodchem.2023.135473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 01/01/2023] [Accepted: 01/09/2023] [Indexed: 01/13/2023]
Abstract
The potential binding of cyanidin-3-O-glucoside (C3G) to bovine lactoferrin (BLF) and ovotransferrin (OTF) at pH 3, 5, and 7 was investigated for the first time. Multiple spectroscopic techniques demonstrated pH-dependent alterations in the conformational characteristics of BLF and OTF upon complexation with C3G. Fluorescence quenching assays showed that their highest binding affinity was at pH 7. Hydrophobic interactions and hydrogen bonds were found to be crucial in molecular dynamics simulations but with significantly lower probabilities of formation at pH 3 (p < 0.05). At pH 7, electrostatic attraction can occur for the negatively charged forms of C3G, and the well-maintained native structures of BLF and OTF may be favorable for stabilizing the C3G binding sites. This study sheds light on the stronger interaction of C3G with BLF/OTF at pH 7, which may have implications for future applications such as anthocyanin stabilization or the development of functional food ingredients.
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Affiliation(s)
- Wenxin Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.
| | - Peiqing Yang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.
| | - Zhenzhen Xu
- Institute of Quality Standard & Testing Technology for Agro-Products, Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Beijing, China.
| | - Liang Zhao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China; National Engineering Research Center for Fruit & Vegetable Processing, Beijing, China; Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing, China.
| | - Yongtao Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China; National Engineering Research Center for Fruit & Vegetable Processing, Beijing, China; Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing, China.
| | - Xiaojun Liao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China; National Engineering Research Center for Fruit & Vegetable Processing, Beijing, China; Key Laboratory of Fruit & Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing, China; Beijing Key Laboratory for Food Non-thermal Processing, Beijing, China.
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19
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Edo-Osagie A, Serillon D, Ruani F, Barril X, Gourlaouen C, Armaroli N, Ventura B, Jacquot de Rouville HP, Heitz V. Multi-Responsive Eight-State Bis(acridinium-Zn(II) porphyrin) Receptor. J Am Chem Soc 2023; 145:10691-10699. [PMID: 37154483 DOI: 10.1021/jacs.3c01089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
A multi-responsive receptor consisting of two (acridinium-Zn(II) porphyrin) conjugates has been designed. The binding constant between this receptor and a ditopic guest has been modulated (i) upon addition of nucleophiles converting acridinium moieties into the non-aromatic acridane derivatives and (ii) upon oxidation of the porphyrin units. A total of eight states has been probed for this receptor resulting from the cascade of the recognition and responsive events. Moreover, the acridinium/acridane conversion leads to a significant change of the photophysical properties, switching from electron to energy transfer processes. Interestingly, for the bis(acridinium-Zn(II) porphyrin) receptor, charge-transfer luminescence in the near-infrared has been observed.
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Affiliation(s)
- Amy Edo-Osagie
- Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg, CNRS/UMR 7177, 4, rue Blaise Pascal, 67000 Strasbourg, France
| | - Dylan Serillon
- Departament de Farmacia i Tecnología Farmaceutica, i Fisicoquímica, Institut de Biomedicina (IBUB), Universitat de Barcelona, Av. Joan XXIII, 27-31, E-08028 Barcelona, Spain
| | - Federica Ruani
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR), Via P. Gobetti 101, Bologna 40129, Italy
| | - Xavier Barril
- Departament de Farmacia i Tecnología Farmaceutica, i Fisicoquímica, Institut de Biomedicina (IBUB), Universitat de Barcelona, Av. Joan XXIII, 27-31, E-08028 Barcelona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23, Barcelona 08010, Spain
| | - Christophe Gourlaouen
- Laboratoire de Chimie Quantique, Institut de Chimie de Strasbourg, CNRS/UMR 7177, 4 rue Blaise Pascal, 67000 Strasbourg, France
| | - Nicola Armaroli
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR), Via P. Gobetti 101, Bologna 40129, Italy
| | - Barbara Ventura
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR), Via P. Gobetti 101, Bologna 40129, Italy
| | - Henri-Pierre Jacquot de Rouville
- Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg, CNRS/UMR 7177, 4, rue Blaise Pascal, 67000 Strasbourg, France
| | - Valérie Heitz
- Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg, CNRS/UMR 7177, 4, rue Blaise Pascal, 67000 Strasbourg, France
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20
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Kampaengsri S, Chansaenpak K, Pewklang T, Muangsopa P, Ketudat Cairns JR, Lai RY, Kamkaew A. Quercetin Nanoparticle-Based Hypoxia-Responsive Probe for Cancer Detection. ACS APPLIED BIO MATERIALS 2023; 6:1546-1555. [PMID: 36921070 DOI: 10.1021/acsabm.2c01063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
In this study, we developed functional nanomaterials via a phenolic-enabled nanotechnology strategy for hypoxia detection employing quercetin (QCT), an abundant flavonoid, as a polyphenolic system. The nano form of QCT was stabilized by coating it with polyethylene glycol (PEG) before loading it with a flavylium dye (Flav) as a pH indicator. The nanosystem, Flav@QCT-PEG, collapsed when it was in an acidic environment, i.e., pH 5, leading to the release of Flav, which activated the fluorescent signal. Therefore, Flav@QCT-PEG was applied to detect hypoxic tumors, known to be acidic, and responded to hypoxic environments in a dose- and time-dependent manner.
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Affiliation(s)
- Sastiya Kampaengsri
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Kantapat Chansaenpak
- National Nanotechnology Center, National Science and Technology Development Agency, Thailand Science Park, Pathum Thani 12120, Thailand
| | - Thitima Pewklang
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Prapassara Muangsopa
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - James R Ketudat Cairns
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand.,Center for Biomolecular Structure, Function and Application, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Rung-Yi Lai
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand.,Center for Biomolecular Structure, Function and Application, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Anyanee Kamkaew
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
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21
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Camuenho A, Jorge Parola A, Alejo-Armijo A, Gomes CS, Laia CA, Pina F. Thermal and Photochemical Reactions of n-Pyridinebenzopyrylium Multistate of Species (n=2’,3’,4’). Exploring the synthetic potentialities from the unique reactivity of position 2’. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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22
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Kotha S, Solanke BU. Diversity Oriented Approach to New Tetrahedral Building Blocks by Ring‐Closing Metathesis. ChemistrySelect 2023. [DOI: 10.1002/slct.202204906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry Indian Institute of Technology–Bombay Powai Mumbai 400 076 India
| | - Balaji U. Solanke
- Department of Chemistry Indian Institute of Technology–Bombay Powai Mumbai 400 076 India
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23
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Gomes LJ, Carrilho JP, Pereira PM, Moro AJ. A Near InfraRed Emissive Chemosensor for Zn 2+ and Phosphate Derivatives Based on a Di-(2-picolyl)amine-styrylflavylium Push-Pull Fluorophore. SENSORS (BASEL, SWITZERLAND) 2023; 23:471. [PMID: 36617069 PMCID: PMC9823994 DOI: 10.3390/s23010471] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/19/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
A new Near InfraRed (NIR) fluorescent chemosensor for metal ions and anions is herein presented. The fluorophore is based on a styrylflavylium dye, a synthetic analogue of the natural anthocyanin family, with a di-(2-picolyl)amine (DPA) moiety as the metal chelating unit. The substitution pattern of the styrylflavylium core (with tertiary amines on positions 7 and 4') shifts the optical properties of the dye towards the NIR region of the electronic spectra, due to a strong push-pull character over the π-conjugated system. The NIR chemosensor is highly sensitive to the presence of Zn2+, which induces a strong CHelation Enhanced Fluorescence (CHEF) effect upon binding to the DPA unit (2.7 fold increase). The strongest competing ion is Cu2+, with a complete fluorescence quenching, while other metals induce lower responses on the optical properties of the chemosensor. Subsequent anion screening of the Zn2+-chemosensor coordination compound has demonstrated a distinct selectivity towards adenosine 5'-triphosphate (ATP) and adenosine 5'-diphosphate (ADP), with high association constants (K ~ 106 M-1) and a strong CHEF effect (2.4 and 2.9 fold fluorescence increase for ATP and ADP, respectively). Intracellular studies with the Zn2+-complexed sensor showed strong luminescence in the cellular membrane of Gram- bacteria (E. coli) and mitochondrial membrane of mammalian cells (A659), which highlights its possible application for intracellular labelling.
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Affiliation(s)
- Liliana J. Gomes
- LAQV-REQUIMTE, Departamento de Química, CQFB, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - João P. Carrilho
- Intracelular Microbial Infection Biology, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - Pedro M. Pereira
- Intracelular Microbial Infection Biology, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - Artur J. Moro
- LAQV-REQUIMTE, Departamento de Química, CQFB, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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24
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Martínez-Costa OH, Rodrigues-Miranda L, Clemente SM, Parola AJ, Basilio N, Samhan-Arias AK. The Use of Flavylium Salts as Dynamic Inhibitor Moieties for Human C b5R. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010123. [PMID: 36615312 PMCID: PMC9822168 DOI: 10.3390/molecules28010123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/14/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022]
Abstract
Cytochrome b5 reductase (Cb5R) is a flavoprotein that participates in the reduction of multiple biological redox partners. Co-localization of this protein with nitric oxide sources has been observed in neurons. In addition, the generation of superoxide anion radical by Cb5R has been observed. A search for specific inhibitors of Cb5R to understand the role of this protein in these new functions has been initiated. Previous studies have shown the ability of different flavonoids to inhibit Cb5R. Anthocyanins are a subgroup of flavonoids responsible for most red and blue colors found in flowers and fruits. Although usually represented by the flavylium cation form, these species are only stable at rather acidic pH values (pH ≤ 1). At higher pH values, the flavylium cation is involved in a dynamic reaction network comprising different neutral species with the potential ability to inhibit the activities of Cb5R. This study aims to provide insights into the molecular mechanism of interaction between flavonoids and Cb5R using flavylium salts as dynamic inhibitors. The outcome of this study might lead to the design of improved specific enzyme inhibitors in the future.
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Affiliation(s)
- Oscar H. Martínez-Costa
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM), C/Arturo Duperier 4, 28029-Madrid, Spain
- Instituto de Investigaciones Biomédicas ‘Alberto Sols’ (CSIC-UAM), C/Arturo Duperier 4, 28029-Madrid, Spain
| | - Laura Rodrigues-Miranda
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM), C/Arturo Duperier 4, 28029-Madrid, Spain
| | - Sofia M. Clemente
- Laboratório Associado Para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - António Jorge Parola
- Laboratório Associado Para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Nuno Basilio
- Laboratório Associado Para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- Correspondence: (N.B.); (A.K.S.-A.)
| | - Alejandro K. Samhan-Arias
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM), C/Arturo Duperier 4, 28029-Madrid, Spain
- Instituto de Investigaciones Biomédicas ‘Alberto Sols’ (CSIC-UAM), C/Arturo Duperier 4, 28029-Madrid, Spain
- Laboratório Associado Para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- Correspondence: (N.B.); (A.K.S.-A.)
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25
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Paulino M, Pérez-Juste I, Cid MM, Da Silva JP, Pereira MMA, Basílio N. 2-Hydroxychalcone-β-Cyclodextrin Conjugate with pH-Modulated Photoresponsive Binding Properties. J Org Chem 2022; 87:14422-14432. [PMID: 36242558 PMCID: PMC9776619 DOI: 10.1021/acs.joc.2c01875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Stimuli-responsive supramolecular receptors are important building blocks for the construction of self-assembled functional materials. We report the design and synthesis of a pH- and light-responsive 2-hydroxychalcone-β-cyclodextrin conjugate (1-Ct) and its characterization by spectroscopic and computational methods. 1-Ct follows the typical reaction network of trans-chalcone-flavylium photoswitches. Upon light irradiation, 1-Ct can be photochemically converted into the cis-chalcone/hemiketal forms (1-Cc/1-B) under neutral pH conditions or to the flavylium cation (1-AH+) at acidic pH values. This stimuli-responsive β-cyclodextrin host, 1-Ct, was found to form stronger intramolecular self-inclusion complexes (Kintra = 14) than 1-AH+ (Kintra = 3) and weaker than 1-Cc/1-B (overall Kintra = 179), allowing control over their stability and binding properties by combinations of pH and light stimuli.
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Affiliation(s)
- Micael Paulino
- Laboratório
Associado para a Química Verde (LAQV), Rede de Química
e Tecnologia (REQUIMTE), Departamento de Química, Faculdade
de Ciências e Tecnologia, Universidade
NOVA de Lisboa, 2829-516Caparica, Portugal
| | - Ignacio Pérez-Juste
- Facultade
de Química, Edificio de Ciencias Experimentais, Universidade de Vigo, Campus Lagoas-Marcosende, 36310Vigo, Spain
| | - María Magdalena Cid
- Facultade
de Química, Edificio de Ciencias Experimentais, Universidade de Vigo, Campus Lagoas-Marcosende, 36310Vigo, Spain,
| | - José P. Da Silva
- Centre
of Marine Sciences (CCMAR/CIMAR LA), University
of Algarve, Campus de
Gambelas, 8005-139Faro, Portugal
| | - M. Manuela A. Pereira
- Laboratório
Associado para a Química Verde (LAQV), Rede de Química
e Tecnologia (REQUIMTE), Departamento de Química, Faculdade
de Ciências e Tecnologia, Universidade
NOVA de Lisboa, 2829-516Caparica, Portugal,
| | - Nuno Basílio
- Laboratório
Associado para a Química Verde (LAQV), Rede de Química
e Tecnologia (REQUIMTE), Departamento de Química, Faculdade
de Ciências e Tecnologia, Universidade
NOVA de Lisboa, 2829-516Caparica, Portugal,
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26
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Păușescu I, Todea A, Dreavă DM, Boboescu T, Pațcan B, Pațcan L, Albulescu D, Badea V, Peter F, Tőtős R, Ursu D, Szolga L, Medeleanu M. Experimental and Computational Studies on Bio-Inspired Flavylium Salts as Sensitizers for Dye-Sensitized Solar Cells. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6985. [PMID: 36234326 PMCID: PMC9572272 DOI: 10.3390/ma15196985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/24/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Six new bio-inspired flavylium salts were synthesized and investigated by a combined computational and experimental study for dye-sensitized solar cell applications. The compounds were characterized by FT-IR, UV-Vis, NMR spectroscopy, and LC-MS spectrometry techniques. The pH-dependent photochromic properties of the flavylium dyes were investigated through a UV-Vis spectroscopy study and revealed that they follow the same network of chemical reactions as anthocyanins upon pH changes. The structural and electronic properties of the dyes were investigated using density functional theory (DFT) and time-dependent density functional theory (TD-DFT). Geometry optimization calculation revealed that all dyes, regardless of the specie, flavylium cations or quinoidal bases, present a planar geometry. The photovoltaic performances of the dyes, in both flavylium and quinoidal base forms, were evaluated by the HOMO and LUMO energies and by calculating the light-harvesting efficiencies, the free energy change of electron injection, and the free energy change regeneration. The MO analysis showed that all dyes can inject electrons into the conduction band of the TiO2 upon excitation and that the redox couple can regenerate the oxidized dyes. The results obtained for the free energy change of electron injection suggest that the quinoidal bases should inject electrons into the semiconductor more efficiently than the flavylium cations. The values for the free energy change regeneration showed that the redox electrolyte can easily regenerate all dyes. Dipole moment analysis was also performed. DSSCs based on the dyes, in both flavylium and quinoidal base forms, were assembled, and their photovoltaic performances were evaluated by measuring the open-circuit voltage, the short circuit current density, the fill factor, and the energy conversion efficiency. Results obtained by both experimental and computational studies showed that the overall performances of the DSSCs with the quinoidal forms were better than those obtained with the flavylium cations dyes.
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Affiliation(s)
- Iulia Păușescu
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, Carol Telbisz 6, 300001 Timisoara, Romania
| | - Anamaria Todea
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, Carol Telbisz 6, 300001 Timisoara, Romania
| | - Diana-Maria Dreavă
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, Carol Telbisz 6, 300001 Timisoara, Romania
| | - Tania Boboescu
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, Carol Telbisz 6, 300001 Timisoara, Romania
| | - Bianca Pațcan
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, Carol Telbisz 6, 300001 Timisoara, Romania
| | - Larisa Pațcan
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, Carol Telbisz 6, 300001 Timisoara, Romania
| | - Daiana Albulescu
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, Carol Telbisz 6, 300001 Timisoara, Romania
- National Institute of Research and Development for Electrochemistry and Condensed Matter, Dr A. Păunescu Podeanu 144, 300569 Timisoara, Romania
| | - Valentin Badea
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, Carol Telbisz 6, 300001 Timisoara, Romania
| | - Francisc Peter
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, Carol Telbisz 6, 300001 Timisoara, Romania
| | - Róbert Tőtős
- Faculty of Chemistry and Chemical Engineering, Babes Bolyai University, Arany Janos 11, 400028 Cluj-Napoca, Romania
| | - Daniel Ursu
- National Institute of Research and Development for Electrochemistry and Condensed Matter, Dr A. Păunescu Podeanu 144, 300569 Timisoara, Romania
| | - Lorant Szolga
- Optoelectronics Group, Base of Electronics Department, ETTI, Technical University of Cluj-Napoca, 28 Memorandumului Str., 400114 Cluj-Napoca, Romania
| | - Mihai Medeleanu
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University of Timişoara, Carol Telbisz 6, 300001 Timisoara, Romania
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27
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Kossyvaki D, Contardi M, Athanassiou A, Fragouli D. Colorimetric Indicators Based on Anthocyanin Polymer Composites: A Review. Polymers (Basel) 2022; 14:polym14194129. [PMID: 36236076 PMCID: PMC9571802 DOI: 10.3390/polym14194129] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 09/16/2022] [Indexed: 11/16/2022] Open
Abstract
This review explores the colorimetric indicators based on anthocyanin polymer composites fabricated in the last decade, in order to provide a comprehensive overview of their morphological and compositional characteristics and their efficacy in their various application fields. Notably, the structural properties of the developed materials and the effect on their performance will be thoroughly and critically discussed in order to highlight their important role. Finally, yet importantly, the current challenges and the future perspectives of the use of anthocyanins as components of colorimetric indicator platforms will be highlighted, in order to stimulate the exploration of new anthocyanin sources and the in-depth investigation of all the possibilities that they can offer. This can pave the way for the development of high-end materials and the expansion of their use to new application fields.
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Affiliation(s)
- Despoina Kossyvaki
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Dipartimento di Informatica Bioingegneria, Robotica e Ingegneria dei Sistemi (DIBRIS), Università degli Studi di Genova, Via Opera Pia 13, 16145 Genova, Italy
| | - Marco Contardi
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | | | - Despina Fragouli
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Correspondence:
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28
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Xie J, Hao X, Shang Y, Chen W. Improvement of stability and lipophilicity of pelargonidin-3-glucoside by enzymatic acylation with aliphatic dicarboxylic acid. Food Chem 2022; 389:133077. [PMID: 35500410 DOI: 10.1016/j.foodchem.2022.133077] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 03/31/2022] [Accepted: 04/22/2022] [Indexed: 11/04/2022]
Abstract
Dicarboxylic acids derived acylated-anthocyanins are common in nature, which can also be obtained by enzymatic acylation of anthocyanins. However, little research have focused on the properties of anthocyanins with dicarboxylic acid derivatives due to the complexity of isolation, detection, and identification. In this work, pelargonidin-3-glucoside (Pg3G) was acylated with various dicarboxylic acids. The conversion yields of acylated Pg3G were positively associated with carbon chain lengths of dicarboxylic acids. The primary acylated products were identified as pelargonidin-3-(6″-malonyl) glucoside, pelargonidin-3-(6″-succinyl) glucoside, and pelargonidin-3-(6″-glutaryl) glucoside using LC-MS and NMR. Furthermore, the three acylated Pg3G derivatives exhibited improved thermostability and enhanced lipophilicity compared with Pg3G. The improved thermostability was attributed to the influence of dicarboxylic acids substituent on the distribution of flavylium cation, quinoidal base, hemiketal, cis-chalcone, and trans-chalcone at the equilibrium condition. Overall, our research provided insights about the improved stability and lipophilicity of pelargonidin-3-glucoside following enzymatic acylation with aliphatic dicarboxylic acids.
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Affiliation(s)
- Jiahong Xie
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Department of Food Science and Nutrition, Zhejiang-Egypt Joint Laboratory for Comprehensive Utilization of Agricultural Biological Resources and Development of Functional Foods, Zhejiang University, Hangzhou 310058, China
| | - Xin Hao
- Department of Food Science and Nutrition, Zhejiang-Egypt Joint Laboratory for Comprehensive Utilization of Agricultural Biological Resources and Development of Functional Foods, Zhejiang University, Hangzhou 310058, China
| | - Yiqiu Shang
- College of Food Science and Engineering, Northwest Agriculture & Forestry University, Xianyang 712100, China
| | - Wei Chen
- Department of Traditional Chinese Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China; Department of Food Science and Nutrition, Zhejiang-Egypt Joint Laboratory for Comprehensive Utilization of Agricultural Biological Resources and Development of Functional Foods, Zhejiang University, Hangzhou 310058, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.
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29
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Zhang XK, Jeffery DW, Li DM, Lan YB, Zhao X, Duan CQ. Red wine coloration: A review of pigmented molecules, reactions, and applications. Compr Rev Food Sci Food Saf 2022; 21:3834-3866. [PMID: 35912664 DOI: 10.1111/1541-4337.13010] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 06/10/2022] [Accepted: 06/29/2022] [Indexed: 01/28/2023]
Abstract
Color is one of the most distinctive qualities of red wine. Despite new knowledge in the field of pigment identification, copigmentation, and oxidation being forthcoming, there is still a large gap between the fundamental research and practical winemaking outcomes. A state-of-art review from these two aspects is, therefore, necessary. This review first introduces updated knowledge about the primary pigments in wine, with emphasis on their physicochemical properties. Then, the mechanisms of copigmentation and oxidation are elucidated in detail, along with their relative contributions to wine color. Finally, the practical effects of copigmentation and micro-oxygenation (MOX) in winemaking are summarized and discussed. In general, wine coloration is ultimately determined by the anthocyanin flavylium cation, which is greatly influenced by wine pH. In young red wine, grape-derived anthocyanins and nonanthocyanin polyphenols (as copigments) are the foundation for wine coloration. During aging and storage, anthocyanin derivatives are formed via various chemical reactions, where moderate oxidation plays a vital role, whereas copigmentation constantly decreases. The essence of wine color evolution relates to the changes of physicochemical properties of primary pigments in wine, where the hydration equilibrium gradually diminishes. In practice, the effects of copigment addition and MOX during real vinification can be viewed as somewhat controversial, considering that many studies showed different effects on wine color and pigment concentration. Universal features can be summarized but some phenomena still remain unclear and deserve further exploration.
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Affiliation(s)
- Xin-Ke Zhang
- Center for Viticulture and Enology, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
- Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing, China
- Food Science and Engineering College, Beijing University of Agriculture, Beijing, China
- "The Belt and Road" International Institute of Grape and Wine Industry Innovation, Beijing University of Agriculture, Beijing, China
| | - David W Jeffery
- Department of Wine Science and Waite Research Institute, The University of Adelaide, Glen Osmond, South Australia, Australia
| | - De-Mei Li
- Food Science and Engineering College, Beijing University of Agriculture, Beijing, China
- "The Belt and Road" International Institute of Grape and Wine Industry Innovation, Beijing University of Agriculture, Beijing, China
| | - Yi-Bin Lan
- Center for Viticulture and Enology, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
- Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Xu Zhao
- Center for Viticulture and Enology, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
- Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Chang-Qing Duan
- Center for Viticulture and Enology, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
- Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing, China
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30
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Samota MK, Sharma M, Kaur K, Sarita, Yadav DK, Pandey AK, Tak Y, Rawat M, Thakur J, Rani H. Onion anthocyanins: Extraction, stability, bioavailability, dietary effect, and health implications. Front Nutr 2022; 9:917617. [PMID: 35967791 PMCID: PMC9363841 DOI: 10.3389/fnut.2022.917617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 06/17/2022] [Indexed: 11/13/2022] Open
Abstract
Anthocyanins are high-value compounds, and their use as functional foods and their natural colorant have potential health benefits. Anthocyanins seem to possess antioxidant properties, which help prevent neuronal diseases and thereby exhibit anti-inflammatory, chemotherapeutic, cardioprotective, hepatoprotective, and neuroprotective activities. They also show different therapeutic effects against various chronic diseases. Anthocyanins are present in high concentrations in onion. In recent years, although both conventional and improved methods have been used for extraction of anthocyanins, nowadays, improved methods are of great importance because of their higher yield and stability of anthocyanins. In this review, we compile anthocyanins and their derivatives found in onion and the factors affecting their stability. We also analyze different extraction techniques of anthocyanins. From this point of view, it is very important to be precisely aware of the impact that each parameter has on the stability and subsequently potentiate its bioavailability or beneficial health effects. We present up-to-date information on bioavailability, dietary effects, and health implications of anthocyanins such as antioxidant, antidiabetic, anticancerous, antiobesity, cardioprotective, and hepatoprotective activities.
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Affiliation(s)
- Mahesh Kumar Samota
- Horticulture Crop Processing (HCP) Division, ICAR-Central Institute of Post-Harvest Engineering & Technology (CIPHET), Punjab, India
| | - Madhvi Sharma
- Post Graduate Department of Biotechnology, Khalsa College, Amritsar, Punjab, India
| | - Kulwinder Kaur
- Department of Processing and Food Engineering, Punjab Agricultural University, Ludhiana, Punjab, India
| | - Sarita
- College of Agriculture, Agriculture University, Jodhpur, Rajasthan, India
| | - Dinesh Kumar Yadav
- Division of Environmental Soil Science, ICAR-Indian Institute of Soil Science (IISS), Bhopal, MP, India
| | - Abhay K Pandey
- Department of Mycology and Microbiology, Tea Research Association-North Bengal Regional R & D Center, Nagrakata, West Bengal, India
| | - Yamini Tak
- Agricultural Research Station (ARS), Agriculture University, Kota, Rajasthan, India
| | - Mandeep Rawat
- Department of Horticulture, G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India
| | - Julie Thakur
- Department of Botany, Bhaskaracharya College of Applied Sciences, University of Delhi, New Delhi, India
| | - Heena Rani
- Department of Biochemistry, Punjab Agricultural University, Ludhiana, Punjab, India
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31
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Martins LMOS, Wang X, Silva GTM, Junqueira HC, Fornaciari B, Lopes LF, Silva CP, Zhou P, Cavalcante VF, Baptista MS, Quina FH. Red Wine Inspired Chromophores as Photodynamic Therapy Sensitizers. Photochem Photobiol 2022; 99:732-741. [PMID: 35944220 DOI: 10.1111/php.13682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 07/25/2022] [Indexed: 11/30/2022]
Abstract
Hydroxypyranoflavylium (HPF) cations are synthetic analogs possessing the same basic chromophore as the pyranoanthocyanins that form during the maturation of red wine. HPF cations absorb strongly in the visible spectral region, and most are fluorescent, triplet-sensitize singlet oxygen formation in solution and are strong photooxidants, properties that are desirable in a sensitizer for photodynamic therapy (PDT). The results of this study demonstrate that several simple HPF dyes can indeed function as PDT sensitizers. Of the eight HPF cations investigated in this work, four were phototoxic to a human cervical adenocarcinoma cell line (HeLa) at the 1-10 μmol dm-3 level, while only one of the eight compounds showed noticeable cytotoxicity in the dark. Neither a Type I nor a Type II mechanism can adequately rationalize the differences in phototoxicity of the compounds. Colocalization experiments with the most phototoxic compound demonstrated the affinity of the dye for both the mitochondria and lysosomes of HeLa cells. The fact that relatively modest structural differences, e.g., the exchange of an electron-donating substituent for an electron-withdrawing substituent, can cause profound differences in the phototoxicity, together with the relatively facile synthesis of substituted HPF cations, makes them interesting candidates for further evaluation as PDT sensitizers.
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Affiliation(s)
- Lucas M. O. S. Martins
- Instituto de Química, Universidade de São Paulo Av. Lineu Prestes 748 São Paulo 05508‐900 Brazil
| | - Xuhui Wang
- Instituto de Química, Universidade de São Paulo Av. Lineu Prestes 748 São Paulo 05508‐900 Brazil
- School of Pharmaceutical Science and Technology Tianjin University Tianjin China
- National University of Singapore
| | - Gustavo T. M. Silva
- Instituto de Química, Universidade de São Paulo Av. Lineu Prestes 748 São Paulo 05508‐900 Brazil
| | - Helena C. Junqueira
- Instituto de Química, Universidade de São Paulo Av. Lineu Prestes 748 São Paulo 05508‐900 Brazil
| | - Bárbara Fornaciari
- Instituto de Química, Universidade de São Paulo Av. Lineu Prestes 748 São Paulo 05508‐900 Brazil
| | - Lohanna F. Lopes
- Instituto de Química, Universidade de São Paulo Av. Lineu Prestes 748 São Paulo 05508‐900 Brazil
| | - Cassio P. Silva
- Instituto de Química, Universidade de São Paulo Av. Lineu Prestes 748 São Paulo 05508‐900 Brazil
| | - Peng Zhou
- Instituto de Química, Universidade de São Paulo Av. Lineu Prestes 748 São Paulo 05508‐900 Brazil
- School of Pharmaceutical Science and Technology Tianjin University Tianjin China
- Tsinghua University Beijing China
| | - Victor F. Cavalcante
- Instituto de Química, Universidade de São Paulo Av. Lineu Prestes 748 São Paulo 05508‐900 Brazil
| | - Mauricio S. Baptista
- Instituto de Química, Universidade de São Paulo Av. Lineu Prestes 748 São Paulo 05508‐900 Brazil
| | - Frank H. Quina
- Instituto de Química, Universidade de São Paulo Av. Lineu Prestes 748 São Paulo 05508‐900 Brazil
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Sun Y, Sun P, Li Z, Qu L, Guo W. Natural flavylium-inspired far-red to NIR-II dyes and their applications as fluorescent probes for biomedical sensing. Chem Soc Rev 2022; 51:7170-7205. [PMID: 35866752 DOI: 10.1039/d2cs00179a] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Fluorescent probes that emit in the far-red (600-700 nm), first near-infrared (NIR-I, 700-900 nm), and second NIR (NIR-II, 900-1700 nm) regions possess unique advantages, including low photodamage and deep penetration into biological samples. Notably, NIR-II optical imaging can achieve tissue penetration as deep as 5-20 mm, which is critical for biomedical sensing and clinical applications. Much research has focused on developing far-red to NIR-II dyes to meet the needs of modern biomedicine. Flavylium compounds are natural colorants found in many flowers and fruits. Flavylium-inspired dyes are ideal platforms for constructing fluorescent probes because of their far-red to NIR emissions, high quantum yields, high molar extinction coefficients, and good water solubilities. The synthetic and structural diversities of flavylium dyes also enable NIR-II probe development, which markedly advance the field of NIR-II in vivo imaging. In the last decade, there have been huge developments in flavylium-inspired dyes and their applications as far-red to NIR fluorescent probes for biomedical applications. In this review, we highlight the optical properties of representative flavylium dyes, design strategies, sensing mechanisms, and applications as fluorescent probes for detecting and visualizing important biomedical species and events. This review will prompt further research not only on flavylium dyes, but also into all far-red to NIR fluorophores and fluorescent probes. Moreover, this interest will hopefully spillover into applications related to complex biological systems and clinical treatments, ranging in focus from the sub-organelle to whole-animal levels.
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Affiliation(s)
- Yuanqiang Sun
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Pengjuan Sun
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Zhaohui Li
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Lingbo Qu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Wei Guo
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
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Rosales TKO, Fabi JP. Nanoencapsulated anthocyanin as a functional ingredient: Technological application and future perspectives. Colloids Surf B Biointerfaces 2022; 218:112707. [PMID: 35907354 DOI: 10.1016/j.colsurfb.2022.112707] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 07/08/2022] [Accepted: 07/14/2022] [Indexed: 12/30/2022]
Abstract
Anthocyanins are an important group of phenolic compounds responsible for pigmentation in several plants, and regular consumption is associated with a reduced risk of several diseases. However, the application of anthocyanins in foods represents a challenge due to molecular instability. The encapsulation of anthocyanins in nanostructures is a viable way to protect from the factors responsible for degradation and enable the industrial application of these compounds. Nanoencapsulation is a set of techniques in which the bioactive molecules are covered by resistant biomaterials that protect them from chemical and biological factors during processing and storage. This review comprehensively summarizes the existing knowledge about the structure of anthocyanins and molecular stability, with a critical analysis of anthocyanins' nanoencapsulation, the main encapsulating materials (polysaccharides, proteins, and lipids), and techniques used in the formation of nanocarriers to protect anthocyanins. Some studies point to the effectiveness of nanostructures in maintaining anthocyanin stability and antioxidant activity. The main advantages of the application of nanoencapsulated anthocyanins in foods are the increase in the nutritional value of the food, the addition of color, the increase in food storage, and the possible increase in bioavailability after oral ingestion. Nanoencapsulation improves stability for anthocyanin, thus demonstrating the potential to be included in foods or used as dietary supplements, and current limitations, challenges, and future directions of anthocyanins' have also been discussed.
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Affiliation(s)
- Thiécla Katiane Osvaldt Rosales
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - João Paulo Fabi
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil; Food Research Center (FoRC), São Paulo, SP, Brazil; Food and Nutrition Research Center (NAPAN), University of São Paulo, São Paulo, SP, Brazil.
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Gomes V, Pires AS, Mateus N, de Freitas V, Cruz L. Pyranoflavylium-cellulose acetate films and the glycerol effect towards the development of pH-freshness smart label for food packaging. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107501] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Insights into pH-modulated interactions between native potato starch and cyanidin-3-O-glucoside: Electrostatic interaction-dependent binding. Food Res Int 2022; 156:111129. [DOI: 10.1016/j.foodres.2022.111129] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/08/2022] [Accepted: 03/09/2022] [Indexed: 11/21/2022]
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36
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Efficient Synthesis of 3-Sulfonyl-2-sulfonylmethyl-2H-chromenes via Tandem Knoevenagel Condensation/Oxa-Michael Addition Protocol. Catalysts 2022. [DOI: 10.3390/catal12050491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
An organocatalytic [4 + 2] cascade annulation of salicylaldehydes and 1,3-bisarylsulfonylpropenes has been developed. This protocol enables the efficient and straightforward synthesis of a new series of 3-sulfonyl-2-sulfonylmethyl-2H-chromenes that are useful for exploring pharmacologically valued compounds. Further reductive modifications result in 3-desulfonylated chromene or chromane derivatives. This protocol can be expanded to the synthesis of 3-sulfonyl-2-sulfonylmethyl 1,2-dihydroquinoline.
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Wang L, He M, Sun Y, Liu L, Ye Y, Liu L, Shen XC, Chen H. Rational engineering of biomimetic flavylium fluorophores for regulating the lysosomal and mitochondrial localization behavior by pH-induced structure switch and application to fluorescence imaging. J Mater Chem B 2022; 10:3841-3848. [PMID: 35470364 DOI: 10.1039/d2tb00181k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Mitochondria and lysosomes, as the important subcellular organelles, play vital roles in cell metabolism and physiopathology. However, there is still no general method to precisely regulate the lysosomal and mitochondrial localization behavior of fluorescent probes except by selecting specific targeting groups. Herein, we proposed a pH-induced structure switch (pHISS) strategy to solve this tricky puzzle. For the proof-of-concept, we have rationally designed and synthesized a series of cationic flavylium derivatives FL-1-9 with tunable pH-induced structure switch through adjusting the electron-donating ability of the substituents. As expected, the co-localization imaging experiments revealed that the lysosomal and mitochondrial localization behavior of FL-1-9 dyes is closely related to their pHISS ability. It is noteworthy that FL cationic dyes with strong electron-donors are not prone to pHISS and can be well enriched in mitochondria, while FL cationic dyes with weak electron-donors are highly susceptible to pHISS and display an unusual lysosome-targeting capability. This also provided a feasible strategy for lysosomal localization without basic groups and presented new application options for some flavylium dyes previously thought to be less stable. Furthermore, FL cationic dyes with medium electron-donor exhibit certain localization abilities both in mitochondria and lysosomes. Finally, through a detailed study of pH-induced structure switch and exploiting the pH inertia brought by the strong electron-donors, a novel NIR ratiometric fluorescent probe with large wavelength-shift was constructed for monitoring mitochondrial H2S in living cells, tumor tissues and living mice, highlighting the value of the pHISS strategy in precisely regulating organelle targeting and constructing corresponding organelle targeting probes.
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Affiliation(s)
- Liping Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Mengye He
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Yu Sun
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Li Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Yuan Ye
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Lingrong Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Xing-Can Shen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Hua Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China.
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38
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Knöller JA, Forschner R, Frey W, Lang J, Baro A, Zens A, Molard Y, Giesselmann F, Claasen B, Laschat S. Chasing Self-Assembly of Thioether-Substituted Flavylium Salts in Solution and Bulk State. Chemphyschem 2022; 23:e202200154. [PMID: 35446455 PMCID: PMC9400860 DOI: 10.1002/cphc.202200154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/12/2022] [Indexed: 12/05/2022]
Abstract
Two series of flavylium triflates carrying alkoxy side chains in the A‐ring (benzo unit of chromylium salt) and thioethers in the B ring (phenyl unit) (On‐Fla‐Sm) as well as thioethers at both A and B ring (Sn‐Fla‐Sm) were synthesized in order to understand the effect of thioether functionalization on their self‐assembly and electronic properties. Concentration‐dependent and diffusion ordered (DOSY) NMR experiments of O1‐iV‐Fla‐S3 indicate the formation of columnar H‐aggregates in solution with antiparallel intracolumnar stacking of the AC unit (chromylium) of the flavylium triflate, in agreement with the solid state structure of O1‐V‐Fla‐S1. Thioether substitution on the B ring changes the linear optical properties in solution, whereas it has no effect on the A ring. According to differential scanning calorimetry, polarizing optical microscopy and X‐ray diffraction bulk self‐assembly of these ionic liquid crystals (ILCs) depends on the total number of side chains, yielding SmA and LamCol phases for ILCs with 2–3 chains and Colro, Colh phases for ILCs with 3–6 chains. Thus, we demonstrated that thioethers are a useful design tool for ILCs with tailored properties.
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Affiliation(s)
- Julius A Knöller
- Universität Stuttgart: Universitat Stuttgart, Institut für Organische Chemie, GERMANY
| | - Robert Forschner
- Universität Stuttgart: Universitat Stuttgart, Institut für Organische Chemie, GERMANY
| | - Wolfgang Frey
- Universität Stuttgart: Universitat Stuttgart, Institut für Organische Chemie, GERMANY
| | - Johannes Lang
- Universität Stuttgart: Universitat Stuttgart, Institut für Organische Chemie, GERMANY
| | - Angelika Baro
- Universität Stuttgart: Universitat Stuttgart, Institut für Organische Chemie, GERMANY
| | - Anna Zens
- Universität Stuttgart: Universitat Stuttgart, Institut für Organische Chemie, GERMANY
| | - Yann Molard
- University of Rennes 1 - Health Sciences Campus Villejean: Universite de Rennes 1 - Campus Sante de Villejean, Institut of Chemical Science, GERMANY
| | - Frank Giesselmann
- Universität Stuttgart: Universitat Stuttgart, Institut für Physikalische Chemie, GERMANY
| | - Birgit Claasen
- Universität Stuttgart: Universitat Stuttgart, Institut für Organische Chemie, GERMANY
| | - Sabine Laschat
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, GERMANY
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39
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Benucci I, Lombardelli C, Mazzocchi C, Esti M. Natural colorants from vegetable food waste: Recovery, regulatory aspects, and stability—A review. Compr Rev Food Sci Food Saf 2022; 21:2715-2737. [DOI: 10.1111/1541-4337.12951] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 02/24/2022] [Accepted: 03/07/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Ilaria Benucci
- Department of Agriculture and Forestry Science (DAFNE) Tuscia University Viterbo Italy
| | - Claudio Lombardelli
- Department of Agriculture and Forestry Science (DAFNE) Tuscia University Viterbo Italy
| | - Caterina Mazzocchi
- Department of Agriculture and Forestry Science (DAFNE) Tuscia University Viterbo Italy
| | - Marco Esti
- Department of Agriculture and Forestry Science (DAFNE) Tuscia University Viterbo Italy
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40
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Zhang Z, Zhang J, Fan L, Kilmartin PA. Degradation of cyanidin-3-O-glucoside induced by antioxidant compounds in model Chinese bayberry wine: Kinetic studies and mechanisms. Food Chem 2022; 373:131426. [PMID: 34717084 DOI: 10.1016/j.foodchem.2021.131426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 09/28/2021] [Accepted: 10/16/2021] [Indexed: 11/26/2022]
Abstract
The degradation kinetic of cyanidin-3-O-glucoside was determined in combination with different antioxidants, namely ascorbic acid, cysteine, reduced glutathione, and sodium sulfite at different concentrations and temperatures (4, 20, and 37 °C) in model Chinese bayberry wine. Ascorbic acid, cysteine, and reduced glutathione accelerated cyanidin-3-O-glucoside degradation; half-life times decreased by ca. 46 ∼ 93%, 0.39 ∼ 88%, and 1.6 ∼ 92% respectively when the concentrations of antioxidants were 0.1 ∼ 5 mM. Thiols with more -SH groups lead to faster degradation of cyanidin-3-O-glucoside. Interactions of oxidized cyanidin-3-O-glucoside with antioxidants were evaluated in aqueous solution and methanol to investigate the degradation mechanism of anthocyanin after oxidation. An anthocyanin-cysteine adduct was identified by LC-MS and formation pathways are proposed, along with mechanisms of anthocyanin degradation induced by antioxidants.
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Affiliation(s)
- Zhengwei Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, China; School of Chemical Sciences, The University of Auckland, Auckland, New Zealand
| | - Jin Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, China
| | - Liuping Fan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, China.
| | - Paul A Kilmartin
- School of Chemical Sciences, The University of Auckland, Auckland, New Zealand.
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41
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de Oliveira F, Rocha ILD, Cláudia Gouveia Alves Pinto D, Ventura SPM, Gonzaga Dos Santos A, José Crevelin E, de Carvalho Santos Ebinuma V. Identification of azaphilone derivatives of Monascus colorants from Talaromyces amestolkiae and their halochromic properties. Food Chem 2022; 372:131214. [PMID: 34619523 DOI: 10.1016/j.foodchem.2021.131214] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/17/2021] [Accepted: 09/20/2021] [Indexed: 02/06/2023]
Abstract
Currently, the ability to produce several kinds of water-soluble red natural colorants makes the genus Talaromyces particularly important to the dye industry, which can be an alternative to the use of harmful synthetic colorants. In this study, colored compounds produced by Talaromyces amestolkiae were extracted, characterized chemically and the color stability of the fermented broth without any extraction procedure was further evaluated over pH variation. Five azaphilones compounds were detected by Ultrahigh Performance Liquid Chromatography-Mass Spectrometry system, all being complexes of the fatty acid amino-hexanedioic acid and azaphilone Monascus colorants. The color of the fermented broth was stable at a wide range of pH (3-9). Furthermore, T. amestolkiae colorants precipitated through hydrolysis of key chemical groups at extremely acidic (pH 1) and lose red color in extremely basic (pH 13) medium, showing negative halochromism. Nevertheless, these findings enhance the industrial relevance of azaphilone colorants produced by biotechnological process.
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Affiliation(s)
- Fernanda de Oliveira
- Department of Engineering Bioprocess and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University - UNESP, Araraquara, SP, Brazil
| | - Inês L D Rocha
- CICECO - Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | | | - Sónia P M Ventura
- CICECO - Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - André Gonzaga Dos Santos
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University - UNESP, Araraquara, SP, Brazil
| | - Eduardo José Crevelin
- Laboratory of Mass Spectrometry Applied to Natural Products Chemistry, Department of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto (FFCLRP), University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Valéria de Carvalho Santos Ebinuma
- Department of Engineering Bioprocess and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University - UNESP, Araraquara, SP, Brazil.
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42
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Cruz L, Mateus N, de Freitas V. pH-regulated interaction modes between cyanidin-3-glucoside and phenylboronic acid-modified alginate. Carbohydr Polym 2022; 280:119029. [PMID: 35027131 DOI: 10.1016/j.carbpol.2021.119029] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 11/02/2022]
Abstract
Stabilizing mechanisms through covalent and non-covalent interactions have been studied along the years for color stabilization of anthocyanin dyes. In this work, the chemical functionalization of a natural and biocompatible marine-based polysaccharide (alginic acid) with 3-aminophenylboronic acid via carbodiimide coupling chemistry was carried out in order to create a bifunctional material for pH-dependent selective interaction with colored cyanidin-3-glucoside chemical species. The interaction studies were performed by UV-Vis, 1H, and 11B NMR spectroscopy. Overall, the apparent acidic and hydration constants are more stabilized in the presence of phenylboronic acid-modified alginate. For more acidic pH values the red cationic flavylium cation of cyanidin-3-glucoside mainly interacts through non-covalent electrostatic interactions with the carboxylate groups of the biopolymer derivative with association constant around 0.5 mM-1 while at higher pH values boronate-catechol covalent bonds are favored, promoting the stabilization of the colored neutral and anionic quinoidal bases of anthocyanins instead of colorless hemiketal and chalcones.
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Affiliation(s)
- Luís Cruz
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal.
| | - Nuno Mateus
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Victor de Freitas
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
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43
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Cui X, Wang S, Lin J, Li J, Bai H, Wang X, Huang C. Biomimetic Sequential Tautomerization/Dehydration/Addition Cascade Reactions: Facile Access to Proanthocyanidin Analogues Driven by Heating. ChemistrySelect 2022. [DOI: 10.1002/slct.202104211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xin Cui
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 China
| | - Shuang Wang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 China
| | - Junjie Lin
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 China
| | - Jingpeng Li
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 China
| | - Hairui Bai
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 China
| | - Xinghong Wang
- School of Life Sciences Yunnan University Kunming 650091 China
| | - Chao Huang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 China
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44
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Shi X, Li Y, Wang L. Two novel mono-hydroxyl pyranoanthocyanidins bearing dimethylamino substituent(s) for dye-sensitized solar cell. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132055] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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45
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Espinoza EM, Clark JA, Billones MK, Silva GTDM, da Silva CP, Quina FH, Vullev VI. Photophysics and Electrochemistry of Biomimetic Pyranoflavyliums: What Can Bioinspiration from Red Wines Offer? PHOTOCHEM 2022; 2:9-31. [PMID: 35075451 PMCID: PMC8783599 DOI: 10.3390/photochem2010003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Natural dyes and pigments offer incomparable diversity of structures and functionalities, making them an excellent source of inspiration for the design and development of synthetic chromophores with a myriad of emerging properties. Formed during maturation of red wines, pyranoanthocyanins are electron-deficient cationic pyranoflavylium dyes with broad absorption in the visible spectral region and pronounced chemical and photostability. Herein, we survey the optical and electrochemical properties of synthetic pyranoflavylium dyes functionalized with different electron-donating and electron-withdrawing groups, which vary their reduction potentials over a range of about 400 mV. Despite their highly electron-deficient cores, the exploration of pyranoflavyliums as photosensitizers has been limited to the "classical" n-type dye-sensitized solar cells (DSSCs) where they act as electron donors. In light of their electrochemical and spectroscopic properties, however, these biomimetic synthetic dyes should prove to be immensely beneficial as chromophores in p-type DSSCs, where their ability to act as photooxidants, along with their pronounced photostability, can benefit key advances in solar-energy science and engineering.
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Affiliation(s)
| | - John Anthony Clark
- Department of Bioengineering, University of California, Riverside, CA 92521, USA
| | | | | | - Cassio Pacheco da Silva
- Instituto de Química, Universidade de São Paulo, Avenida Lineu Prestes 748, Cidade Universitaŕia, São Paulo 05508-900, Brazil
| | - Frank Herbert Quina
- Instituto de Química, Universidade de São Paulo, Avenida Lineu Prestes 748, Cidade Universitaŕia, São Paulo 05508-900, Brazil
| | - Valentine Ivanov Vullev
- Department of Chemistry, University of California, Riverside, CA 92521, USA
- Department of Bioengineering, University of California, Riverside, CA 92521, USA
- Department of Biochemistry, University of California, Riverside, CA 92521, USA
- Materials Science and Engineering Program, University of California, Riverside, CA 92521, USA
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46
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Iqbal A, Iqbal G, Umar MN, ur Rashid H, Khan SW. Synthesis of novel silica encapsulated spiropyran-based thermochromic materials. ROYAL SOCIETY OPEN SCIENCE 2022; 9:211385. [PMID: 35251675 PMCID: PMC8889169 DOI: 10.1098/rsos.211385] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 01/31/2022] [Indexed: 05/07/2023]
Abstract
A series of novel spiropyrans were synthesized through the condensation of substituted 3,3-dimethyl-2-methyleneindoline with different nitro-substituted o-hydroxy aromatic aldehydes. Indoles were initially substituted with a variety of alkanes and esters moieties. The substituted 3,3-dimethyl-2-methyleneindoline was then reacted with nitro-substituted o-hydroxy aromatic aldehydes to yield the respective spiropyrans. The synthesized novel spiropyrans were encapsulated in silica nano-shells to protect them from the effect of moisture and pH. The thermochromic behaviour of novel spiropyrans was studied by UV-visible spectroscopy. The thermally induced isomerization of spiropyran derivatives was carried out in a water/ethanol mixture. The thermal isomerization of spiro-heterocyclic (colourless form) to merocyanine (MC) (coloured form) was a discontinuous process and was observed in a temperature range of 5-60°C via UV-visible spectrometer. The absorption process occurs reversibly regardless of the heating/cooling sequence. The spiropyran derivatives, therefore, have a potential application for colorimetric temperature indication.
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Affiliation(s)
- Anila Iqbal
- Nanoscience and Technology Department, National Center for Physics, PO Box No 2141, Islamabad 44000, Pakistan
| | - Ghazala Iqbal
- Department of Pharmacy, Kohat University of Science and Technology, (KUST), Kohat, KP, Pakistan
| | | | - Haroon ur Rashid
- Institute of Chemistry, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Sher Wali Khan
- Department of Chemistry, Shaheed Benazir Bhutto University, Sheringal, Upper Dir, KP, Pakistan
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47
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Kotha S, Solanke BU. Modular Approach to Benzofurans, 2H-Chromenes and Benzoxepines via Claisen Rearrangement and Ring-Closing Metathesis: Access to Phenylpropanoids. Chem Asian J 2022; 17:e202200084. [PMID: 35218606 DOI: 10.1002/asia.202200084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/25/2022] [Indexed: 11/07/2022]
Abstract
Benzofurans, 2 H -chromenes and benzoxepines are key structural elements present in several natural products and pharmaceuticals. Here, we describe an easy-to-execute strategy for the synthesis of benzofurans, 2 H -chromenes and benzoxepines, by employing Claisen rearrangement and ring-closing metathesis as key steps. A variety of phenols were converted into useful oxacycles in good to excellent yields. The ring-closing metathesis approach has been used to produce phenylpropanoid natural products. Examples described here include, the naturally occurring benzofurans such as 7-methoxywutaifuranal, 7-methoxywutaifuranol, 7-methoxywutaifuranate and the O -prenylated natural products like boropinic acid, boropinols A and C.
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Affiliation(s)
- Sambasivarao Kotha
- Indian Institute of Technology, Department of Chemistry, Powai, 400 076, Mumbai, INDIA
| | - Balaji U Solanke
- Indian Institute of Technology Bombay, Chemistry, 400076, Mumbai, INDIA
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48
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Biosynthesis and regulation of anthocyanin pathway genes. Appl Microbiol Biotechnol 2022; 106:1783-1798. [PMID: 35171341 DOI: 10.1007/s00253-022-11835-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/07/2022] [Accepted: 02/10/2022] [Indexed: 11/02/2022]
Abstract
Anthocyanins are the phenolic compounds responsible for coloring pigments in fruits and vegetables. Anthocyanins offer a wide range of health benefits to human health. Their scope has expanded dramatically in the past decade, making anthocyanin control, influx, and outflow regulation fascinating for many researchers. The main culprit is anthocyanin stability and concentration form, which demands novel ways because these are critical in the food industry. This review aims to examine anthocyanin synthesis via triggering transcription genes that code for anthocyanin-producing enzymes. The balance between production and breakdown determines anthocyanin accumulation. Thus, increasing the anthocyanin content in food requires the stability of molecules in the vacuolar lumen, the pigment fading process, and a better understanding of the mechanism. The promising option is biosynthesis by metabolically engineered microorganisms with a lot of success. This study aims to look into and evaluate the existing literature on anthocyanin production, namely the biosynthesis of anthocyanin pathway genes, production by microbial cell factories, and the regulatory factors that can modulate the production of anthocyanins. Understanding these mechanisms will provide new biotechnological approaches.Key points• Factors affecting the regulation of anthocyanins• Focus on degradation, biosynthesis pathway genes, and alternative systems for the production of anthocyanins• Microbial cell factories can be used to produce large amounts of anthocyanins.
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Hao MY, Huang MH, Gu XY, Zhang TS, Zhu XT, Hao WJ, Jiang B. Diastereoselective Generation of C 2-Azlactonized 2 H-Chromenes via Brønsted Acid-Catalyzed Oxo-Cyclization of Propargyl Alcohols. J Org Chem 2022; 87:1518-1525. [PMID: 35000383 DOI: 10.1021/acs.joc.1c02299] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A new Brønsted acid-catalyzed oxo-cyclization of propargyl alcohols with azlactones to synthesize C2-azlactonized 2H-chromenes has been established that uses 1,1'-binaphthyl-2,2'-diyl hydrogen phosphate (BiNPO4H) as the catalyst and gives excellent diastereoselectivities (≥19:1 dr) in most cases. This protocol has a high compatibility with various substituents of substrates, offering a catalytic and useful entry to the fabrication of the synthetically important C2-functionalized 2H-chromene scaffold.
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Affiliation(s)
- Meng-Ying Hao
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Min-Hua Huang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Xin-Yu Gu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Tian-Shu Zhang
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221018, P. R. China
| | - Xiao-Tong Zhu
- Department of Chemistry, Xuzhou Medical University, Xuzhou 221004, People's Republic of China
| | - Wen-Juan Hao
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Bo Jiang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
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50
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Sousa D, Basílio N, Oliveira J, de Freitas V, Pina F. A New Insight into the Degradation of Anthocyanins: Reversible versus the Irreversible Chemical Processes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:656-668. [PMID: 34982560 DOI: 10.1021/acs.jafc.1c06521] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The kinetics and thermodynamics of the pH-dependent reversible and irreversible processes leading to color fading of pelargonidin-3-O-glucoside, peonidin-3-O-glucoside, malvidin-3-O-glucoside, and cyanidin-3-O-glucoside dyes in aqueous solutions are reported. Following the addition of base to the flavylium cation, the quinoidal bases disappear by three distinct steps: (i) in an acidic medium by a biexponential process, in which the faster step is controlled by the hydration reaction and the slower one by cis-trans isomerization; the degradation process occurs essentially from the anionic quinoidal base; (ii) in a basic medium (pH > 9.5), in which the disappearance of the anionic bases is monoexponential, with the rate proportional to the hydroxyl concentration (hydroxyl attack), leading to anionic chalcones (cis and trans) at equilibrium─the slower degradation step occurs from the di- and trianionic chalcones; and (iii) in the pH region circa 7.7 < pH < 9.5, in which hydration and hydroxyl attacks are much slower than anionic quinoidal base degradation (which is the rate-controlling step) and the equilibrium cannot be attained.
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Affiliation(s)
- Diogo Sousa
- iBB─Institute for Bioengineering and Biosciences and Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro, 1, 1959-007 Lisboa, Portugal
| | - Nuno Basílio
- Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Joana Oliveira
- LAQV─REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Victor de Freitas
- LAQV─REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Fernando Pina
- Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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