Academic literature on the topic 'Chromophores'

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Journal articles on the topic "Chromophores"

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Rosenau, Thomas, Antje Potthast, Paul Kosma, Hans U. Suess, and Norbert Nimmerfroh. "Isolation and identification of residual chromophores from aged bleached pulp samples." Holzforschung 61, no. 6 (2007): 656–61. http://dx.doi.org/10.1515/hf.2007.108.

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Abstract Three bleached and subsequently aged cellulosic pulps have been analysed for their chromophore content according to the chromophore release and identification (CRI) method. Several chromophores have been unambiguously identified, despite their very low content (ppb range). This is the first report on defined chromophoric structures isolated from bleached pulps. It is also the first application of the CRI method to cellulose I substrates, rather than to cellulose II substrates (fibres) and cellulose derivatives as hitherto performed. A common feature of the chromophores is the 2-hydrox
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Zhang, Chao-Zhi, Hui Cao, and Zhao-Bing Guo. "Theoretical Study of Effect of the Number of N,N-dimethyl-4-nitroaniline Units in Novel “Parallel Connection” Chromophores on Its Nonlinear Optical Properties." ISRN Physical Chemistry 2012 (December 22, 2012): 1–8. http://dx.doi.org/10.5402/2012/262563.

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Design of “parallel connection” chromophores could give a way of acquiring effective chromophores. The semiempirical method ZINDO was employed to study relationship between static first hyperpolarizabilities of “parallel connection” chromophores and the number of parallel nonconjugated N,N-dimethyl-4-nitroaniline (DMNA) units in the chromophore. The results show that the chromophore containing three parallel non-conjugated DMNA units exhibits the highest static first hyperpolarizability, which is 1.8 times that of chromophore DMNA. However, static first hyperpolarizabilities of the chromophore
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Zhao, Long. "Effect of the second chromophore energy gap on photo-induced electron injection in di-chromophoric porphyrin-sensitized solar cells." Royal Society Open Science 5, no. 9 (2018): 181218. http://dx.doi.org/10.1098/rsos.181218.

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This work investigates the effect of the second chromophore energy gap on charge generation in porphyrin-based di-chromophoric dye-sensitized solar cells (DSSCs). Three di-chromophoric porphyrin dyes (PorY, PorO and PorR) containing three organic chromophores with decreasing frontier orbital energy offsets, including a carbazole-triphenylamine chromophore (yellow, Y), a carbazole fused-thiophene chromophore (orange, O) or a carbazole-thiophene benzothiadiazole thiophene chromophore (red, R), were investigated using optical and electrochemical methods, steady-state photoluminescence and photovo
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Huang, Xiaoqing, Ziheng Li, Meishan Peng, et al. "Synthesis of Bis(N,N-diethyl)aniline-Based, Nonlinear, Optical Chromophores with Increased Electro-Optic Activity by Optimizing the Thiolated Isophorone Bridge." Symmetry 14, no. 3 (2022): 586. http://dx.doi.org/10.3390/sym14030586.

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Six nonlinear, optical chromophores, Z1–Z6, based on the bis(N,N-diethyl)aniline-derived donor and thiolated isophorone bridge, were designed and synthesized. The bis(N,N-diethyl)aniline-derived donor was applied in a chromophore with thiolated isophorone as an electron bridge for the first time. In particular, the bridge parts of chromophores Z2–Z6 were modified with different functional groups, including tert-butyltrimethylsilane and tert-butyl(methyl)diphenylsilane derivative: 1,3-bis(trifluoromethyl)benzene and alkylaniline cyanoacetate, respectively. Density functional theory calculations
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Kučerová, Viera, Richard Hrčka, and Tatiana Hýrošová. "Relation of Chemical Composition and Colour of Spruce Wood." Polymers 14, no. 23 (2022): 5333. http://dx.doi.org/10.3390/polym14235333.

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The visual inspection of fresh cut spruce wood (Picea abies, L. Karst.) showed the variability of its colour. Wood visual inspection is a part of wood quality assessment, for example, prior to or after its processing. The detail spruce wood colour analysis was performed using spectrophotometric data. The colour was measured by the bench-top spectrophotometer CM-5 Konica Minolta. The spectrophotometer was calibrated with a built-in white standard and on air. The whole analysis was performed in an xy chromaticity diagram supplemented with coordinate Y and CIE L*a*b* colour spaces. The ratio of t
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Kalinin, Alexey A., Liliya N. Islamova, Sirina M. Sharipova та ін. "Synthesis of D-π-A¢-π-A Chromophores with Quinoxaline Core as Auxiliary Acceptor and Effect of Various Silicon-Substituted Donor Moieties on Thermal and Nonlinear Optical Properties at Molecular and Material Level". Molecules 28, № 2 (2023): 531. http://dx.doi.org/10.3390/molecules28020531.

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Novel D-π-A¢-π-A chromophores with quinoxaline cores as auxiliary acceptors and various donor moieties (aniline, carbazole, phenothiazine, tetrahydroquinoline) containing bulky tert-butyldimethylsilyloxy (TBDMSO) groups and tricyanofuranyl (TCF) acceptors with bulky cyclohexylphenyl substituents were synthesized via eight- to nine-step procedures, and their photo-physical and thermal properties were investigated. The values of the chromophores’ first hyperpolarizabilities were calculated in the framework of DFT at the M06-2X/aug-cc-pVDZ computational level; the effect of the introduction of th
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Asthana, Deepak, Shota Hisamitsu, Masa-aki Morikawa, et al. "Aqueous Photon Upconversion by Anionic Acceptors Self-Assembled on Cationic Bilayer Membranes with a Long Triplet Lifetime." Organic Materials 01, no. 01 (2019): 043–49. http://dx.doi.org/10.1055/s-0039-3400250.

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Anionic 9,10-diphenylanthracene chromophores electrostatically bound to cationic, chiral bilayer membranes show ordered self-assembly in water. The integrity of the chromophore-accumulated aqueous bilayer membranes is ensured by multiple hydrogen-bond networks introduced in the bilayer, which allowed adaptive accommodation of the guest chromophores at the inner surface of the bilayer while maintaining their cohesive interactions. The regular chromophore alignment in the aqueous assembly is confirmed by differential scanning calorimetry, circular dichroism, and circularly polarized luminescence
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ZHANG, CHAO-ZHI, HUI CAO та ZHAO-BING GUO. "NONLINEAR OPTICAL PROPERTIES OF NOVEL AND EFFECTIVE H-SHAPED CHROMOPHORES CONTAINING THREE PARALLEL AND NON-CONJUGATED D-π-A UNITS". Journal of Nonlinear Optical Physics & Materials 20, № 03 (2011): 327–39. http://dx.doi.org/10.1142/s021886351100611x.

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H-shaped chromophores containing three parallel non-conjugated D-π-A units are effective chromophores with high hyperpolarizability and good optical transparency. The semi-empirical methods ZINDO, AM1, MNDO and PM3 were employed to study the effect of strength of acceptors and donors, and steric repulsion between substituents on static first hyperpolarizabilities (β0) and enhancements of β0 of the H-shaped chromophores. The results show that the H-shaped chromophore would exhibit the largest β0 and/or the largest enhancement of β0 of the chromophore when combination of a donor (D) and an accep
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Chávez-Huerta, M., and F. Rojas. "Local quantum uncertainty as a robust metric to characterize discord-like quantum correlations in subsets of the chromophores in photosynthetic light-harvesting complexes." Revista Mexicana de Física 66, no. 4 Jul-Aug (2020): 525. http://dx.doi.org/10.31349/revmexfis.66.525.

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Green sulfur bacteria is a photosynthetic organism whose light-harvesting complex accommodates a pigment-protein complex called Fenna-Matthews-Olson (FMO). The FMO complex sustains quantum coherence and quantum correlations between the electronic states of spatially separated pigment molecules as energy moves with nearly a 100% quantum efficiency to the reaction center. We present a method based on the quantum uncertainty associated to local measurements to quantify discord-like quantum correlations between two subsystems where one is a qubit and the other is a qudit. We implement the method b
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Chen, Cheng, J. Nathan Henderson, Dmitry A. Ruchkin, et al. "Structural Characterization of Fluorescent Proteins Using Tunable Femtosecond Stimulated Raman Spectroscopy." International Journal of Molecular Sciences 24, no. 15 (2023): 11991. http://dx.doi.org/10.3390/ijms241511991.

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The versatile functions of fluorescent proteins (FPs) as fluorescence biomarkers depend on their intrinsic chromophores interacting with the protein environment. Besides X-ray crystallography, vibrational spectroscopy represents a highly valuable tool for characterizing the chromophore structure and revealing the roles of chromophore–environment interactions. In this work, we aim to benchmark the ground-state vibrational signatures of a series of FPs with emission colors spanning from green, yellow, orange, to red, as well as the solvated model chromophores for some of these FPs, using wavelen
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Dissertations / Theses on the topic "Chromophores"

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Chammam, Marwa. "Carbo-chromophores di, quadri, octupolaires pour l'absorption à deux photons." Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30236.

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Le manuscrit traite de la conception, la synthèse et l'étude des propriétés optiques d'absorption à un et deux photons d'une série de chromophores organiques à systèmes pi-conjugués étendus de la famille des carbo-mères, en s'appuyant sur des résultats préliminaires obtenus par l'équipe avec des carbo-benzènes quadripolaires à substituants fluorényles. Le phénomène d'absorption à deux photons (A2P) présentant une large gamme d'applications dans divers domaines tels que la photothérapie dynamique, le stockage de données, la microfabrication ou la limitation optique, il a fait l'objet de nombreu
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Henriksson, Johan. "Light Control using Organometallic Chromophores." Licentiate thesis, Linköping University, Linköping University, Computational Physics, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-17232.

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<p> </p><p>The interaction between light and organometallic chromophores has been investigated theoretically in a strive for fast optical filters. The main emphasis is on two-photon absorption and excited state absorption as illustrated in the Jablonski diagram. We stress the need for relativistic calculations and have developed methods to address this issue. Furthermore, we present how quantum chemical calculations can be combined with Maxwell's equations in order to simulate propagation of laser pulses through a materials doped with chromophores with high two-photon absorption cross sections
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Kumarasamy, Elango. "Stereospecific Phototransformations of Atropisomeric Chromophores." Diss., North Dakota State University, 2014. https://hdl.handle.net/10365/27553.

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Photochemical transformations are unique strategy in synthesis that enables us to access complex and structurally diverse organic scaffolds. However, the challenges in controlling the excited-state to perform stereoselective reactions left this method under-utilized. This dissertation describes a novel strategy that employs atropisomeric chromophores to perform stereospecific phototransformations. The success of this strategy is well established in thermal chemistry but not comprehensively investigated in photochemical transformations. This research largely relies on rotamer control in t
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Baglai, Iaroslav. "Synthèse de carbo-benzènes, carbo-cyclohexadiènes et carbo-butadiènes à substituants chromophores." Toulouse 3, 2014. http://thesesups.ups-tlse.fr/2385/.

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La thématique de recherche développée pour ce doctorat est centrée sur la synthèse et la caractérisation de molécules hautement insaturées et enrichies en carbone de type carbo-mères, portant des substituants chromophores, notamment de type polycyclique et hétérocyclique azoté. La première partie concerne la synthèse de carbo-benzènes quadripolaires portant des fluorophores hydrocarbonés de type fluorène, soit directement connectés au noyau carbo-benzénique, soit séparés de ce dernier par l'intermédiaire d'un lien acétylénique. La deuxième partie porte sur la synthèse de carbo-benzènes para-di
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Buker, Nicholas D. "Guanidine donors in nonlinear optical chromophores /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/8669.

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Li, Yan. "Periodic mesoporous organosilicas with functional chromophores." Diss., Ludwig-Maximilians-Universität München, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-173286.

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Addison, Kiri. "The photophysics of fluorescent protein chromophores." Thesis, University of East Anglia, 2015. https://ueaeprints.uea.ac.uk/53399/.

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Fluorescent proteins of the Green Fluorescent Protein (GFP) family are important and versatile scientific tools used in a range of applications including the labelling of proteins, cells and tissue, high resolution imaging and studying protein-protein interactions. They exhibit a very diverse range of photochemical behaviour. Surprisingly this diversity originates from chromophores which have very similar structures. Accordingly, minor changes to the chromophore structure or to its surroundings in the protein can produce dramatic changes in optical behaviour. In this work the photophysics of t
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MILETIC, TANJA. "FUNCTIONAL CHROMOPHORES FOR LIGHT-HARVESTING APPLICATIONS." Doctoral thesis, Università degli Studi di Trieste, 2016. http://hdl.handle.net/11368/2908014.

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This doctoral thesis describes the design, synthesis and characterization as well as investigations of the optical properties of new functional chromophores. In the recent years, the term “functional dyes” used in a wild range of application areas, such as dyes for liquid crystals, lasers, displays, solar cells or bioimaging emphasize on the new functionality beyond color of π-conjugated chromophores.[1] In Chapter I a briefly insight into the general aspects of functional chromophores and emitters for light-harvesting, along with a concise outline of the manuscript is given to the reader.
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Pulham, Andrew J. "Novel polymer chromophores for non-linear optics." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358723.

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Kagawa, Yasuyuki. "New tetracyanoquinodimethane chromophores, synthesis and physical properties." Thesis, Durham University, 1998. http://etheses.dur.ac.uk/4902/.

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Synthesis and physical characterizations of a novel class of zwitterionic organic chromophores were carried out. A series of tetracyanoquinodimethane (TCNQ) derivatives was prepared from reactions with primary and secondary amines. By modifications of the structure it was hoped to optimize their nonlinear properties. The newly synthesized organic chromophores were highly polar, zwitterionic and transparent at wavelengths above 600nm, which is a requirement for waveguide devices at 650nm. The molecular dipole moments were determined experimentally and theoretically. The experimental dipole mome
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Books on the topic "Chromophores"

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Lo, Kenneth Kam-Wing, and Peter Kam-Keung Leung, eds. Metal Ligand Chromophores for Bioassays. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-19863-2.

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Lalevée, Jacques, and Jean-Pierre Fouassier, eds. Dyes and Chromophores in Polymer Science. John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119006671.

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Simpson, W. S. Near-uv chromophores in wool proteins. Wronz, 1994.

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Klinger, Daniel. Light-Sensitive Polymeric Nanoparticles Based on Photo-Cleavable Chromophores. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00446-4.

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Prelati, Mario. Die elektronischen Chromophore in Gold-Komplexen. Zentralstelle der Studentenschaft, 1992.

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Verdegem, Peter J. E. Structure, function, and dynamics of the chromophore of Rhodopsin. University of Leiden, 1998.

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Jänichen, Jan. Enantioselektive Synthese von Analogen und Fragmenten des Neocarzinostatin-Chromophors. [s.n.], 1994.

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Davis, Jason Arlen. Behaviour and localization of chromophore absorption signals in the transmission electron microscope. National Library of Canada, 2000.

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Rashidi-Ranjbar, Parviz. Conformational analysis and absolute configurations of eight-membered ring compounds containing the biphenyl chromophore. Chemical Center, Univ., 1989.

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Stohner, Jürgen. Theoretische Untersuchungen zur Quantendynamik der Infrarotvielphotonenanregung des CH-Chromophors in vielatomigen Molekülen geringer Symmetrie. [s.n.], 1994.

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Book chapters on the topic "Chromophores"

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Matsuoka, Masaru. "Other Chromophores." In Infrared Absorbing Dyes. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4899-2046-1_8.

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Chorlton, A. P. "Novel chromophores." In Modern Colorants: Synthesis and Structure. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-1356-4_5.

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Galian, Raquel E., and Julia Pérez-Prieto. "Oxygen-containing chromophores." In Photochemistry. Royal Society of Chemistry, 2022. http://dx.doi.org/10.1039/9781839167676-00201.

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Pérez-Prieto, Julia. "Oxygen-containing Chromophores." In Photochemistry. Royal Society of Chemistry, 2020. http://dx.doi.org/10.1039/9781839162114-00216.

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Yurke, Bernard. "DNA Assembly of Dye Aggregates—A Possible Path to Quantum Computing." In Natural Computing Series. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9891-1_9.

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AbstractDNA-based self-assembly enables the programmable arrangement of matter on a molecular scale. It holds promise as a means with which to fabricate high technology products. DNA-based self-assembly has been used to arrange chromophores (dye molecules) covalently linked to DNA to form Förster resonant energy transfer and exciton-based devices. Here we explore the possibility of making coherent exciton information processing devices, including quantum computers. The focus will be on describing the chromophore arrangements needed to implement a complete set of gates that would enable univers
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Fischer, R., J. Gottstein, S. Siebzehnrübl, and H. Scheer. "Phycocyanin with Modified Chromophores." In Current Research in Photosynthesis. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0511-5_231.

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Van Stryland, Eric W., and David J. Hagan. "Characterization of 2PA Chromophores." In Multiphoton Lithography. Wiley-VCH Verlag GmbH & Co. KGaA, 2016. http://dx.doi.org/10.1002/9783527682676.ch2.

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Jin, Guo-Qing, Li-Jun Guo, Jing Zhang, Song Gao, and Jun-Long Zhang. "Luminescent Metal Complexes for Bioassays in Near-infrared (NIR) Region." In Metal Ligand Chromophores for Bioassays. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-19863-2_1.

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Schwehr, Bradley J., David Hartnell, Massimiliano Massi, and Mark J. Hackett. "Luminescent metal complexes as emerging tools for lipid imaging." In Metal Ligand Chromophores for Bioassays. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-19863-2_3.

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AbstractFluorescence microscopy is a key tool in the biological sciences, which finds use as a routine laboratory technique (e.g., epifluorescence microscope) or more advanced confocal, two-photon, and super-resolution applications. Through continued developments in microscopy, and other analytical methods, the importance of lipids as constituents of subcellular organelles, signalling or regulating molecules continues to emerge. The increasing recognition of the importance of lipids to fundamental cell biology (in health and disease) has prompted the development of protocols and techniques to
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Gkika, Karmel S., David Cullinane, and Tia E. Keyes. "Metal peptide conjugates in cell and tissue imaging and biosensing." In Metal Ligand Chromophores for Bioassays. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-19863-2_2.

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AbstractMetal complex luminophores have seen dramatic expansion in application as imaging probes over the past decade. This has been enabled by growing understanding of methods to promote their cell permeation and intracellular targeting. Amongst the successful approaches that have been applied in this regard is peptide-facilitated delivery. Cell-permeating or signal peptides can be readily conjugated to metal complex luminophores and have shown excellent response in carrying such cargo through the cell membrane. In this article, we describe the rationale behind applying metal complexes as pro
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Conference papers on the topic "Chromophores"

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Marshall, Julia, Gergory Sutton, Evan P. Van Orman, et al. "Organogold nonlinear optical chromophores." In Organic Photonic Materials and Devices XXVII, edited by Ileana Rau, Okihiro Sugihara, and William M. Shensky. SPIE, 2025. https://doi.org/10.1117/12.3040752.

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Chittibabu, K. G., L. Li, X. Wang, J. Kumar, and S. K. Tripathy. "Thiophene based Nonlinear Optical Chromophore functionalized Epoxy Polymers for Electro-Optic Applications." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/otfa.1997.thc.4.

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Polymeric materials present certain advantages over inorganic crystals for second-order nonlinear optical (NLO) applications because of their low dielectric constant, large optical nonlinearity, low cost, and ease of processability. Stable NLO polymeric materials are potential candidates for electro-optic (EO) devices such as high bandwidth electro-optic modulators [1], optical interconnects [2], and fiber optic gyros [3]. Second-order NLO properties in polymers are present when the chromophores are aligned in a non-centrosymmetric manner. Chromophores with enhanced NLO susceptibilities can be
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Herman, W. N., J. A. Cline, J. M. Hoover, A. Chafin, G. A. Lindsay, and K. J. Wynne. "Nonlinear Optical Properties of Self-Assembled Mainchain Polymer Films." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/otfa.1995.md.28.

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We report second harmonic generation measurements on multilayers of two interleaved mainchain polymers fabricated by Langmuir Blodgett (LB) deposition. LB processing1 offers advantages over electric-field poling in that it can be done at room temperature (hence the kT Brownian motion is much less) without the strong electric fields that can lead to film damage during corona poling. Mainchain polymers are inherently more stable than sidechain polymers because both ends of the chromophore are attached to the backbone of the polymer, whereas only one end of the chromophore is attached to the back
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Kim, Oh-Kil, Ling-Siu Choi, He-Yi Zang, Xue-Hua He, and Yan-Hua Shih. "Anisotropic Self-Alignment of Supramolecular Amylose Inclusion of Chromophores for Second-Order Nonlinear Optical Materials." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/otfa.1995.md.31.

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Anisotropic alignment of nonlinear chromophores and their dipolar stability are the key issues1 of nonlinear optical (NLO) materials. Poling is a usual means in guest-host systems to bring about such an alignment2-4. Since poling is carried out around the glass transition temperature(Tg) of hosts5, and the temporal stability of chromophores depends primarily on Tg values of hosts, matrix materials for high-temperature stability are required to have high Tg such as with polyimides. However, the high-temperature poling causes problems in nonlinear chromophores, such as bleaching6-7, decompositio
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Lindsay, G. A., J. D. Stenger-Smith, R. A. Henry, et al. "High-Temperature Sierrulate Nonlinear Optical Polymers." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1993. http://dx.doi.org/10.1364/otfa.1993.wa.4.

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Second-order nonlinear optical polymers (NLOPs) are excellent thin film active optical waveguiding materials.1 Integration of NLOP films on silicon to form low cost photonic devices, using current manufacturing lines, requires optical stability to at least 250°C for several minutes, and more preferably to 350°C. One approach has been to dissolve stable chromophores in high temperature polyimides.2 However, the addition of chromophores (20 to 30 percent) considerably lowers the glass transition temperature, and diffusion of the fugitive chromophores will cause long term stability problems. A se
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Cline, J. A., and W. N. Herman. "Chi-electric Relaxation: Frequency Domain Chromophore Dynamics in Nonlinear Optical Polymers." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/otfa.1995.md.39.

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The orientational stability of nonlinear optical chromophores in polymer systems has been the subject of extensive research.1-8 A new experimental method of observing chromophore dynamics has been developed. The method is similar to dielectric relaxation measurements where the linear polarization of the material is induced by a sinusoidal electric field. However, this new method probes the orientation of just the chromophores through second harmonic generation (SHG). This method is unique because it yields information about chromophore dynamics in the frequency domain, whereas the bulk of the
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Chen, Antao, Sean Garner, Araz Yacoubian та ін. "Characterization of electrooptic polymers with high µβ chromophores for photonic device applications". У Organic Thin Films for Photonic Applications. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/otfa.1997.the.23.

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For electrooptic (EO) polymer devices to be accepted in high speed fiber communication systems, the operation voltage of these devices must be reduced to a level compatible with the high speed electronics that drives the polymer devices. A low operation voltage, or Vπ in the case of modulators, requires EO polymers with high electrooptic coefficients. The electrooptic effect comes from the nonlinear chromophores in the polymer and the alignment of these chromophores by poling. High electrooptic coefficients calls for chromophores with large nonlinearity, i.e., high µβ. The synthesis and charac
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Goldman, Leon. "Chromophores in tissue for laser medicine and surgery." In OSA Annual Meeting. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.thd1.

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Early in the development of laser medicine and laser surgery, endogenous chromophores in mammalian tissue established the great value of the color selective action of lasers in the visible light range. From these models, there developed laser treatments of incurable birthmarks, cancer surgery, surgery of the heart and blood vessels, and even the treatment of tattoos. With the subsequent development of photodynamic therapy, a successful cancer treatment program was established. This was based on the localization and induced fluorescence of cancer tissue by derivatives of the chromophore and hem
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Wang, C. H., S. H. Gu, and H. W. Guan. "Polar Order and Relaxation of Second Order Nonlinear Optical Susceptibility in Amorphous Polymer Films." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1993. http://dx.doi.org/10.1364/otfa.1993.wb.1b.

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Second harmonic intensities of several polymer films containing nonlinear optical chromophores have been investigated as a function of NLO Chromophore concentration, temperature and poling field strength.
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Yakymyshyn, Christopher P., Kevin R. Stewart, Eugene P. Boden, and Peter D. Phelps. "Linear- and nonlinear-optic properties of single-crystal organic salts." In OSA Annual Meeting. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.fd6.

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A recently reported technique for influencing the crystal packing of organic molecules possessing large hyperpolarizabilities has led to the discovery of a class of organic- salt complexes having large second-order susceptibilities (second-harmonic powder efficiencies 1000 times that of urea).1 Head-to- tail packing of the nonlinear chromophores in sheets is frequently observed in this material system. In addition, nearly parallel orientation of nonlinear chromophores in adjacent sheets is possible by carefully choosing an appropriate counterion to function as a "spacer” between chromophore sh
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Reports on the topic "Chromophores"

1

Arias, Eduardo, Ivana Moggio, and Ronald F. Ziolo. Ultrafast Spectroscopy of Chromophores. Defense Technical Information Center, 2012. http://dx.doi.org/10.21236/ada566311.

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Rodgers, M. A. J. Photoinduced charge separation by polymer-bound chromophores. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/5124483.

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Webber, S. Photoinduced charge separation by polymer-bound chromophores. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/5612649.

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Miller, Robert D. High Temperature Nonlinear Optical Chromophores and Polymers. Defense Technical Information Center, 1996. http://dx.doi.org/10.21236/ada311315.

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Kanis, David R. Computational Studies of Novel Nonlinear Optical Chromophores. Defense Technical Information Center, 1998. http://dx.doi.org/10.21236/ada380884.

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Rodgers, M. Photoinduced charge separation by polymer-bound chromophores. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/6859493.

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Arias, Eduardo, Ivana Moggio, and Ronald Ziolo. Synthesis of Chromophores Extension for Nonlinear Optics Applications. Defense Technical Information Center, 2012. http://dx.doi.org/10.21236/ada580521.

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Castellano, Felix N. Programmable Triplet Formation and Decay in Metal-Organic Chromophores. Defense Technical Information Center, 2011. http://dx.doi.org/10.21236/ada567091.

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Lohman, James. Photoelectrochemical Catalysis of Hydrogen Peroxide with Tellurium Containing Chromophores. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.7180.

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Manuspiya, Hathaikarn, Rathanawan Magaraphan, and Supatcharee Boonruang. Synthesis of chromophores modified porous clay heterostructure for preparing ethylene scavenger and optical sensor packaging film. Chulalongkorn University, 2013. https://doi.org/10.58837/chula.res.2013.100.

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Smart packagings for detecting climacteric fruit freshness were prepared based on low density polyethylene (LDPE)/chromophores (bromothymol blue) modified PCH (PCH-BTB) nanocomposite films. The incorporation of chromophores in porous materials was investigated by N₂ adsorption-desorption, XRD and SEM. The nanaocomposite was prepared by twin screw extruder and fabricated into nanocomposite film by compression molding. The color change of LDPE/PCH-BTB nanocomposite films from green to yellow correlated with standard CO₂ levels, which can be compared to CO₂ levels from respiration during fruit ri
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