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Substituent Effects on the Ultraviolet Absorption Properties of 2,4-Dihydroxy Dibenzophenone. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238169. [PMID: 36500263 PMCID: PMC9737593 DOI: 10.3390/molecules27238169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/25/2022]
Abstract
Substituent effects on the ultraviolet absorption properties of 2,4-dihydroxy dibenzophenone were investigated experimentally. Nine compounds of 2,4-dihydroxy dibenzophenone with different substituents were prepared by a solvent-free reaction of benzoyl chloride. The maximum absorption wavelength (λmax) of these samples was measured, and their UV resistance properties in cotton fabric as well as in polyester were determined. The results show that the λmax is dependent on the substituents at the benzylidene ring, and both electron donating substituents and electron withdrawing substituents cause a bathochromic shift. The UV resistance of fabric increases with the increase in compound concentration. The dyeing rate of each compound on polyester was higher than that of cotton. On cotton fabric, the dyeing rate of 2,4-dihydroxybenzophenone was the highest, 77.8%. On polyester, that of 2,4-dihydroxy-4'-ethyl dibenzophenone was the highest, 84.1%. The study provides new insights into the effect of substituents on the properties of 2,4-dihydroxy dibenzophenone that are related to the whitening of cotton and polyester materials.
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Chen F, Ma Y, Qi L. Synthesis of Porous Microplatelets of α Form Anhydrous Guanine in DMSO/Water Mixed Solvents REMINDER: CrystEngComm - Invitation to submit an article. CrystEngComm 2022. [DOI: 10.1039/d1ce01709h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Guanine crystals have been utilized as optical systems such as tunable structural colors, diffusive light scatters, broad-band and narrow-band reflectors, imaging mirrors, and polarization sensitive reflectors in many organisms. It...
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Figon F, Deravi LF, Casas J. Barriers and Promises of the Developing Pigment Organelle Field. Integr Comp Biol 2021; 61:1481-1489. [PMID: 34283212 DOI: 10.1093/icb/icab164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/04/2021] [Accepted: 05/11/2021] [Indexed: 11/13/2022] Open
Abstract
Many colors and patterns in nature are regulated by the packaging and processing of intracellular pigment-containing organelles within cells. Spanning both molecular and tissue-level spatial scales with chemical and physical (structural) elements of coloration, pigment organelles represent an important but largely understudied feature of every biological system capable of coloration. Although vertebrate melanosomes have historically been the best-known and most studied pigment organelle, recent reports suggest a surge in studies focusing on other pigment organelles producing a variety of non-melanic pigments, optic crystals and structural colors through their geometric arrangement. In this issue, we showcase the importance these integrative and comparative studies and discuss their results which aid in our understanding of organelle form and function in their native environment. Specifically, we highlight how pigment organelles can be studied at different scales of organization, across multiple species in biology, and with an interdisciplinary approach to better understand the biological and chemical mechanisms underlying color. This type of comparative approach provides evidence for a common origin and identity of membrane-bound pigment organelles not only in vertebrates, as was originally postulated 40 years ago, but in all animals. This indicates that we have much to gain by studying a variety of pigment organelles, as the specific biological context may provide important and unique insights into various aspects of its life. We conclude by highlighting some barriers to this research and discussing strategies to overcome them through a discussion of future directions for pigment organelle research.
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Affiliation(s)
- Florent Figon
- Institut de Recherche sur la Biologie de l'Insecte, UMR 7261, CNRS-Université de Tours, 37200 Tours, France
| | - Leila F Deravi
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115, USA
| | - Jérôme Casas
- Institut de Recherche sur la Biologie de l'Insecte, UMR 7261, CNRS-Université de Tours, 37200 Tours, France
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Wu B, Liu Y, Chen F, Li J, Yu Y, Zhou Y, Li L, Xiao J, Ma Y. Investigation on the formation mechanism of twinned crystals of hypoxanthine-doped beta-phase anhydrous guanine microplatelets. CrystEngComm 2021. [DOI: 10.1039/d1ce00148e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Herein, hypoxanthine-doped β phase anhydrous guanine (I-doped β-AG) twinned crystals with varying hypoxanthine contents were obtained in formamide. The occlusion of hypoxanthine in β-AG might be a key factor for formation of twinned β-AG crystals.
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Affiliation(s)
- Bianbian Wu
- MOE Key Laboratory of Cluster Science
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing
- China
| | - Yanan Liu
- MOE Key Laboratory of Cluster Science
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing
- China
| | - Fenghua Chen
- MOE Key Laboratory of Cluster Science
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing
- China
| | - Jiangfeng Li
- MOE Key Laboratory of Cluster Science
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing
- China
| | - Yue Yu
- College of Chemistry
- Peking University
- Beijing
- China
| | - Yinglin Zhou
- College of Chemistry
- Peking University
- Beijing
- China
| | - Ling Li
- Department of Mechanical Engineering
- Virginia Polytechnic Institute and State University
- Blacksburg
- 24061 USA
| | - Jie Xiao
- Department of Highly Sensitive X-ray Spectroscopy
- Helmholtz-Zentrum Berlin für Materialien und Energie
- Berlin
- Germany
| | - Yurong Ma
- MOE Key Laboratory of Cluster Science
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing
- China
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Fang Z, Wu F, Tao Q, Qin Q, Au C, Li Y, Zhang H, Wang N, Yi B. Substituent effects on the ultraviolet absorption properties of stilbene compounds-Models for molecular cores of absorbents. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 215:9-14. [PMID: 30825869 DOI: 10.1016/j.saa.2019.02.072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 02/02/2019] [Accepted: 02/17/2019] [Indexed: 06/09/2023]
Abstract
The effects of substituent X and Y on ultraviolet (UV) absorption properties of stilbene compounds XPhCHCHPhY (XSBY) were studied both experimentally and computationally from the viewpoint of UV maximum absorption wavelength (λmax) and the corresponding energy (υmax). In the studies, the contribution of substituents on υmax shift was explored. The results show that with increase of electron withdrawing or electron donating ability of X or Y, there is an enhanced electron delocalization of XSBY that leads to bathochromic shift. Computational analyses based on density functional theory were conducted to elucidate the phenomena. It is disclosed that the υmax values are significantly affected by the excited state, though the electronic effect of ground state cannot be ignored. Finally, on the basis of the respective influences of X and Y, a quantitative model, which was proved reliable by the leave-one-out method, was developed to scale the effects of terminal substituents on υmax. According to the model, the effects of substituents X or Y exhibit almost the same action on υmax owing to the symmetric skeleton of the XSBY compounds. The findings provide deep insight into the effects of terminal substituents on UV absorption properties of stilbene compounds, and the derived model enables practical expression of the relationship between substituents and UV absorption.
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Affiliation(s)
- Zhengjun Fang
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China.
| | - Feng Wu
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Qiang Tao
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China; Department of Chemistry and Bioscience, Aalborg University, Aalborg 9220, Denmark
| | - Qiwen Qin
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Chaktong Au
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Yajun Li
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Houpeng Zhang
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Nanfang Wang
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China.
| | - Bing Yi
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China.
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Chen F, Wu B, Elad N, Gal A, Liu Y, Ma Y, Qi L. Controlled crystallization of anhydrous guanine β nano-platelets via an amorphous precursor. CrystEngComm 2019. [DOI: 10.1039/c9ce00245f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We realized a pure phase of anhydrous guanine (AG) β form for the first time via a transformation from hydrated amorphous guanine phase (HAmG). The specified transformation was probably due to the similar short-range order between AG β and HAmG.
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Affiliation(s)
- Fenghua Chen
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- College of Chemistry
- Peking University
- Beijing 100871
| | - Bianbian Wu
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Nadav Elad
- Department of Chemical Research Support
- Weizmann Institute of Science
- Rehovot 760001
- Israel
| | - Assaf Gal
- Department of Plant and Environmental Sciences
- Weizmann Institute of Science
- Rehovot 760001
- Israel
| | - Yanan Liu
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Yurong Ma
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Limin Qi
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- College of Chemistry
- Peking University
- Beijing 100871
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Ma Y, Chen F, Hu Y, Liu Y, Qi L. Controlled crystallization of twinned crystalline guanine microplatelets. CrystEngComm 2019. [DOI: 10.1039/c9ce00920e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In this work, twinned anhydrous guanine β microplatelets were synthesized for the first time in the presence of a polyvinylpyrrolidone. The twinning angle of the two c axes for the synthetic and biogenic twinned guanine crystals is 84°, very similar to each other.
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Affiliation(s)
- Yurong Ma
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Fenghua Chen
- Beijing National Laboratory for Molecular Sciences
- College of Chemistry
- Peking University
- Beijing 100871
- China
| | - Yiran Hu
- Beijing National Laboratory for Molecular Sciences
- College of Chemistry
- Peking University
- Beijing 100871
- China
| | - Yanan Liu
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Limin Qi
- Beijing National Laboratory for Molecular Sciences
- College of Chemistry
- Peking University
- Beijing 100871
- China
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Gawryszewski FM, Calero-Torralbo MA, Gillespie RG, Rodríguez-Gironés MA, Herberstein ME. Correlated evolution between coloration and ambush site in predators with visual prey lures. Evolution 2017; 71:2010-2021. [DOI: 10.1111/evo.13271] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 04/01/2017] [Accepted: 05/02/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Felipe M. Gawryszewski
- Department of Biology; Macquarie University; Sydney NSW 2109 Australia
- Departmento de Genética; Universidade Federal de Goiás; Goiânia GO Brazil
| | - Miguel A. Calero-Torralbo
- Department of Functional and Evolutionary Ecology; Estación Experimental de Zonas Áridas (CSIC); Almeria Spain
| | - Rosemary G. Gillespie
- Department of Environmental Science, University of California; Berkeley California 94720 USA
| | - Miguel A. Rodríguez-Gironés
- Department of Functional and Evolutionary Ecology; Estación Experimental de Zonas Áridas (CSIC); Almeria Spain
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Corcobado G, Herberstein ME, Pekár S. The role of ultraviolet colour in the assessment of mimetic accuracy between Batesian mimics and their models: a case study using ant-mimicking spiders. Naturwissenschaften 2016; 103:90. [PMID: 27722878 DOI: 10.1007/s00114-016-1410-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 06/27/2016] [Accepted: 09/17/2016] [Indexed: 11/26/2022]
Abstract
The use of ultraviolet (UV) cues for intra- and inter-specific communication is common in many animal species. Still, the role of UV signals under some predator-prey contexts, such as Batesian mimicry, is not clear. Batesian mimicry is a defensive strategy by which a palatable species (the mimic) resembles an unpalatable or noxious species (the model) to avoid predation. This strategy has evolved independently in many different taxa that are predated by species capable of UV perception. Moreover, there is considerable variation in how accurately Batesian mimics resemble their models across species. Our aim was to investigate how UV colour contributed to mimetic accuracy using several ant-mimicking spider species as a case study. We measured the reflectance spectrum (300-700 nm) for several species of mimics and models, and we tested whether they differ in visible and UV colour. We modelled whether two different predators could discriminate between mimics and models using colour information. We found that generally, ant-mimicking spiders differed significantly from their ant models in UV colour and that information from the visible range of light cannot be extrapolated into the UV. Our modelling suggested that wasps should be able to discriminate between mimics and models combining information from visible and the UV light, whereas birds may not discriminate between them. Thus, we show that UV colour can influence mimic accuracy and we discuss its potential role in Batesian mimicry. We conclude that colour, especially in the UV range, should be taken into account when measuring mimetic accuracy.
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Affiliation(s)
- Guadalupe Corcobado
- Department of Botany and Zoology, Faculty of Sciences, Masaryk University, Kotlářská 2, 61137, Brno, Czech Republic.
| | - Marie E Herberstein
- Department of Biological Sciences, Macquarie University, North Ryde, Sydney, NSW, 2109, Australia
| | - Stano Pekár
- Department of Botany and Zoology, Faculty of Sciences, Masaryk University, Kotlářská 2, 61137, Brno, Czech Republic
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