dye

Post-synthetic modification of a covalent organic framework via a thiol–ene reaction for improving fluorescence detection and removal of cationic crystal violet carcinogenic dye

Inorg. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QI00419A, Research Article
Ke Li, Bing Yan
Based on a thiol–ene reaction, a covalent organic framework containing olefins (COF-A) is modified with 2-mercaptoacetic acid to prepare COF-S-COOH for the first time, which greatly improves the sensing and adsorption capacity for crystal violet.
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dye

A peek at Kokūn’s zero-waste, naturally-dyed apparel

Zero-waste apparel dyed with home-grown rhubarb and madder is the forte of Mridu Mehra Tiwari’s brand Kokūn, which just launched its Spring collection and a men’s range




dye

Intermediate diradical character and thermal cis–trans isomerization of near-infrared absorbing thionated squaraine dyes

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO01722F, Research Article
Open Access
Taishi Oka, Takeshi Maeda, Daisuke Sakamaki, Naoya Suzuki, Shigeyuki Yagi, Shintaro Kodama, Hideki Fujiwara
Near-infrared absorbing squaraine dyes incorporating 4-membered thionated oxocarbon and chalcogenopyrylium moieties exhibit intermediate diradical character, which impacts thermal cis–trans isomerization.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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dye

Impact of boron desymmetrization on supramolecular polymerization of BODIPY dyes

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO01848F, Research Article
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Tobias B. Tischer, Zulema Fernandez, Lorenz Borsdorf, Constantin Daniliuc, Shigehiro Yamaguchi, Soichiro Ogi, Gustavo Fernandez
Supramolecular polymers are often investigated for highly symmetric and planar molecules, such as typically explored BF2-substituted BODIPY dyes . However, it is surprising that the possibility of desymmetrizing the sp3...
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dye

Investigation and development of novel synthetic approaches for synthesis of euxanthone and derived dyes

RSC Adv., 2024, 14,35601-35609
DOI: 10.1039/D4RA06475E, Paper
Open Access
M. Mustafa Cetin
This work explores new synthetic methods for euxanthone and its derived dye Indian yellow through euxanthic acid formation, confirming structures with analytical techniques and proposing a mechanism for the euxanthone synthesis.
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dye

Zeolitic imidazolate framework-67 in chitosan-grafted hydrogel as an effective catalyst for peroxymonosulfate activation to degrade antibiotics and dyes

RSC Adv., 2024, 14,35628-35637
DOI: 10.1039/D4RA06537A, Paper
Open Access
Atipong Nachaichot, Kunlarat Phonlakan, Supinya Nijpanich, Soraya Pornsuwan, Surangkhana Budsombat
Zeolitic imidazolate framework-67 (ZIF-67) was synthesized in situ in the hydrogel of chitosan-grafted poly(acrylic acid) (chitosan-g-PAA) to activate peroxymonosulfate (PMS) and degrade tetracycline (TC).
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dye

Porous, environment-friendly chitosan-ZIF composite fibers for dye adsorption

RSC Adv., 2024, 14,36063-36072
DOI: 10.1039/D4RA06883A, Paper
Open Access
Xuebin Hou, Wei Chen, Meihong Fan, Chen Shi
Porous, environment friendly ZIF-8@CS composite fibers were fabricated through wet spinning and self-assembly method, which effectively remove dyes from water and exhibit excellent recyclability.
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dye

Development of Polyoxometalate-loaded MOF for Heterogeneous Catalysis and Enhanced Dye Adsorption

Dalton Trans., 2024, Accepted Manuscript
DOI: 10.1039/D4DT02645D, Paper
Ketan Maru, Sarita Kalla, Ritambhara Jangir
The study focuses here on the enhancement of MIL-117 functionality by incorporating well-known polyoxometalate (POM); tetrabutylammonium octamolybdate [(n-C4H9)4N]4[Mo8O26]. Using an encapsulation method with conventional heating, Mo8O264- anions were first time...
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dye

BODIPY dyes for optical limiting applications on the nanosecond timescale

Dalton Trans., 2024, 53,17766-17771
DOI: 10.1039/D4DT02505A, Frontier
John Mack, Gugu Kubheka, Aviwe May, Bokolombe P. Ngoy, Tebello Nyokong
Recent research at the Institute for Nanotechnology Innovation at Rhodes University exploring the utility of BODIPY and azaBODIPY dyes for optical limiting of incident nanosecond laser pulses in the visible region is described.
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dye

Rationalization of the light-induced electron injection mechanism in a model 1D ZnO nanowire-dye complex: insights from real-time TD-DFTB simulations

Nanoscale, 2024, 16,20280-20287
DOI: 10.1039/D3NR06557J, Paper
Dalma M. Márquez, Carlos R. Lien-Medrano, Germán J. Soldano, Cristián G. Sánchez
Zinc oxide nanowires (ZnO NWs) possess a unique one-dimensional (1D) morphology that offers a direct pathway for charge transport.
The content of this RSS Feed (c) The Royal Society of Chemistry




dye

Stories in silk: RmKv launches thematic handloom silk saris with natural dye

RmKv Silks which turned 100 this year, has launched their range of thematic handloom silk saris with natural dye this festive season




dye

PILI raises funds for biotech textile dyes




dye

Colorful hair dyes from blackcurrants

Semipermanent color from anthocyanins in fruit skins are a natural alternative to petroleum-derived dyes




dye

These new textile dyeing methods could make fashion more sustainable

Large and small suppliers vow to help a resource-intensive, cost-sensitive industry change with the times




dye

CEO-Mumbai (Techno-Commercial to Head Textiles, Weaving, Processing, Yarn-Dyeing unit & Spinning)

Company: P & I Management Consultants
Experience: 0 to 50
location: India
Ref: 24341089
Summary: Job Description: Core Competencies in Brief: 1) A skilled strategist with success in devising efficient implementation of plans, ensuring efficiency & profitability of the company with goal oriented leader with integrity,....




dye

US Midyear Elections Offer Opportunities and Challenges for Renewable Energy

Every time the U.S. holds midyear elections, the country almost always goes against the incumbent President’s party, which is always sobering to whomever holds The White House. And this week’s elections were no exception.




dye

M/S. Sri Murugan Dyeing Rep. By Its ... vs The District Environmental ... on 15 October, 2014

1. Hon'ble Shri Justice M. Chockalingam, Judicial Member

2. Hon'ble Prof. Dr. R. Nagendran, Expert Member

------------------------------------------------------------------------------------------------

Date: 15th October, 2014

------------------------------------------------------------------------------------------------ (Hon'ble Shri Justice M. Chockalingam, Judicial Member) These appeals have been filled by appellant herein challenging the order of the 2nd respondent, namely, the Appellant Authority, Tamil Nadu Pollution Control (Appellant Authority) made in Appeal Nos. 37 and 38 of 2013 dated 28.02.2014 whereby the appeals have been dismissed.




dye

M/S. Sri Murugan Dyeing Rep. By Its ... vs The District Environmental ... on 15 October, 2014

1. Hon'ble Shri Justice M. Chockalingam, Judicial Member

2. Hon'ble Prof. Dr. R. Nagendran, Expert Member

------------------------------------------------------------------------------------------------

Date: 15th October, 2014

------------------------------------------------------------------------------------------------ (Hon'ble Shri Justice M. Chockalingam, Judicial Member) These appeals have been filled by appellant herein challenging the order of the 2nd respondent, namely, the Appellant Authority, Tamil Nadu Pollution Control (Appellant Authority) made in Appeal Nos. 37 and 38 of 2013 dated 28.02.2014 whereby the appeals have been dismissed.




dye

Team-mates Kieron Dyer and Lee Bowyer fought on pitch in an incredible season 15 years ago

Before this season, few Premier League campaigns had been more barmy than 2004-05, when conventions were ripped up and troublemaking footballers hit the front pages as well as the back.




dye

Adyen partners with the WHO COVID-19 Solidarity Response Fund

Netherlands-based payments platform



dye

Openbravo, Adyen partner to launch retail solution

Retail and restaurant omnichannel platform Openbravo and...




dye

Make your own natural red food dye for Valentine's treats

Instead of coloring Valentine’s treats with artificial red dye, try one of these natural red dye alternatives for cupcakes, cookies and more.




dye

A lipstick-lover's guide to avoiding Red Dye #40

How I learned to find products that don't contain this common additive.



  • Natural Beauty & Fashion

dye

Why activists have dyed rivers bright green throughout France

The color looks radioactive, but activists promise it is nontoxic and harmless to marine life.



  • Wilderness & Resources

dye

Getting to the roots of organic hair dye

Find out if organic hair dye stacks up with our fashion and beauty correspondent, Jolene Eyre.



  • Natural Beauty & Fashion

dye

An organic candy cane with no red dye or corn syrup

Do you or your kids like candy canes, but do you dislike the dye and corn syrup they contain? Look no further.




dye

7 Easter egg dyeing tips for non-DIYers

Anyone can create beautiful patterns on Easter eggs with these simple tricks.




dye

The benefits of using natural hair dyes

Blackcurrant, indigo and henna can color and strengthen your hair naturally and avoid some of the controversial ingredients in traditional dyes.



  • Fitness & Well-Being

dye

Process for preparing primary intermediates for dyeing keratin fibers

A process has been developed for preparing 2-methoxymethyl-1,4-benzenediamine (IV-a), other compounds of formula (IV), and the salts thereof, all of which may be used as primary intermediates in compositions for dyeing keratin fibers.




dye

Sulfonamide derivatives of polycyclic dyes used for analytical applications

The invention concerns the production of quinoline compounds containing sulfonic acid groups, the said quinoline compounds and their conversion into dyes containing sulfonic acid groups. The dyes according to the invention are used especially to label analytes, for example to label biomolecules.




dye

Dye migration preventing decoration pieces made of thermoplastic synthetic resin

A decoration piece has: a design piece made of thermoplastic synthetic resin formed with a design and having an outer profile line; a lower layer; and a dye migration preventing layer arranged between the design piece and the lower layer, said dye migration preventing layer having an outer profile same as that of said design piece, said dye migration preventing layer capable of being adhered to both said design piece and the lower layer, said dye migration preventing layer capable of preventing any migrating of dye. The dye migration preventing layer includes a dye migration preventing film made of ethylene-vinyl alcohol copolymer or polyamide MXD6, or a dye migration preventing film made of polyvinylidene chloride.




dye

Metallized thermal dye image receiver elements and imaging

A thermal dye image receiver element has a substrate comprising a voided compliant layer and metalized layer. Disposed on the metalized layer is an opacifying layer that includes an opacifying agent and a dye receiving layer. This thermal dye image receiver element can be a duplex element with image receiving layers on both sides of the substrate, and it can be used in association with a thermal donor element to provide a thermal image on either or opposing sides of the receiver element. The metalized layer provides increased specular reflectance under resulting thermal dye images.




dye

Polymer-bonded perylene dyes and compositions containing same

A method of increasing the solubility and/or dispersibility of a perylene dye in a liquid medium. The method comprises binding the perylene dye to a polymer which is soluble in the liquid medium. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.




dye

Methine-substituted cyanine dye compounds

Cyanine dye compounds having a substituted methine moiety that are nucleic acid stains, particularly for fluorescent staining of RNA, including compounds having the formula where R1 is a C1-C6 alkyl, sulfoalkyl, carboxyalkyl or C1-C6 alkoxy; each R2 is independently selected from the group consisting of H, C1-C6 alkyl, C1-C6 alkoxy, fused benzo, trifluoromethyl, amino, sulfo, carboxy and halogen, that is optionally further substituted; at least one of R3, R4, and R5 is an alkyl, aryl, heteroaryl, cyclic, or heterocyclic moiety that is optionally substituted by alkyl, amino, aminoalkyl, carboxy, nitro, or halogen; and the remaining R3, R4 or R5 are hydrogen; X is S, O, or Se; and D is a substituted or unsubstituted pyridinium, quinolinium or benzazolium moiety.




dye

Fluorescent dyes with large stokes shifts

Herein are disclosed fluorescent dyes based around a framework for a ligand comprising a pyridyl group linked to a diaryl anilido unit. A variety of ligands based on this framework are disclosed. The ligands chelate to a BF2 center to produce the fluorescent dye. The disclosed dyes combine longer Stokes shifts (approximately 100 nm) with increased quantum yields. They are also photostable in aqueous and organic solutions for several hours. These dyes may be used in the labeling of biomolecules for bioimaging and assays. Also disclosed are methods for the synthesis of these dyes.




dye

Black disazo dyes, their preparation and use

Black disazo dyes of general formula (V) wherein A is a moiety of formula (VI) or of formula (VII) and B is a moiety of formula (VII) or of formula (IX) and wherein M, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, and R24, are as defined in the specification, are excellent black dyes for dying and printing cellulose containing materials and textile materials and, in particular, for preparation of recording liquids for ink jet printing and for writing utensils.




dye

Dichroic dye composition, light absorption anisotropic film, and polarizing element

A light absorption anisotropic film, having at least one dichroic dye, in which the light absorption anisotropic film shows a diffraction peak derived from a periodic structure in a direction in a plane of the light absorption anisotropic film in X-ray diffraction measurement and the diffraction peak has a half width of 1.0 Å or less.




dye

Azo compound and dye polarizing film containing the same

Disclosed is an azo compound represented by the formula (1) below, a salt thereof, or a copper complex salt compound thereof. (In the formula, R1 and R2 independently represent a hydrogen atom, a sulfonic acid group, a lower alkyl group or a lower alkoxyl group; R3-R6 independently represent a hydrogen atom, a lower alkyl group or a lower alkoxyl group; R7 represents a lower alkyl group or a lower alkoxyl group; and n represents 0 or 1.)




dye

Blue dye and methods of manufacture and use thereof

Provided, amongst other things, are dyes of formula II: wherein R1, R2, R3 and R4 are independently H or alkyl, so long as one or more is alkyl, and salts of the compound of formula II. Methods of making, inks, surgical markers and methods of marking tissue and the like are further provided.




dye

Black dichroic dye

Described is a black dichroic dye composition comprising 2 or more dyes, wherein at least one dye, generally a red dye and optionally a yellow dye, conforms to the formula A and at least one dye, usually a blue dye, conforms to the formula B Ar1—N═N—[Ar2—N═N—]qAr3—N═N—Ar4 (B) with symbols as defined in present claims. The dye composition is well suited for combination with liquid crystal material for use, inter alia, as polarizing film and/or in liquid crystal displays, showing, inter alia, high dichroic ratio and excellent compatibility with the LC material.




dye

Working electrode, method for fabricating the same and dye-sensitized solar cell containing the same

The present invention provides a method for fabricating a working electrode. The method comprises the following steps: providing a photoelectrode, which comprises a conductive substrate with a semiconductor material; providing a dye solution, which comprises a dye dissolved in a solvent; and applying a voltage for conducting an electrophoresis to adsorb said dye onto a surface of said semiconductor material. The method of present invention makes the dye adsorbed fast to a surface of a semiconductor material by electrophoresis, and therefore, significantly reduces the time for fabricating a dye-sensitized solar cell.




dye

Dye-sensitized solar cell

The present invention provides a dye-sensitized solar cell which enhances an area of a photo electrode by arranging metal wires on a surface of a transparent substrate or a transparent conductive layer without degrading a transparency of the solar cell, allowing the metal wires to act as a collector electrode exclusively or together with a metal electrode.




dye

Gel-type polymer electrolyte for dye-sensitized solar cell and dye-sensitized solar cell comprising the same

The present disclosure relates to gel-type polymer electrolyte for a dye-sensitized solar cell, a dye-sensitized solar cell comprising the gel-type polymer electrolyte, and a method for manufacturing the dye-sensitized solar cell.




dye

Method of making a knit apparel with a tie dyed appearance and an apparel made by the method

A knit apparel is made using a decorating pattern that is generated to give the apparel the appearance of tie dyed apparel. The decorating pattern includes a main element, a secondary element and intermediate zones have the same color but gradually lighter shades as the main element.




dye

Novel Dye and Aroma System for Plant and Plant Product Enhancement

A formulation consisting of a food-grade dye and a plant aroma cocktail is uptaken by plants and flowers and fruit. The improved aroma profile and color make the plant or it's flowers or it's fruit more desirable for consumption or viewing with an enhanced aroma.




dye

Thiophene azo dyes and laundry care compositions containing the same

This application relates to thiophene azo dyes for use as hueing agents, laundry care compositions comprising such thiophene azo dyes, processes for making such thiophene azo dyes, and laundry care compositions and methods of using the same. The thiophene azo dyes contain a formally charged moiety and are generally comprised of at least two components: at least one chromophore component and at least one polymeric component. Suitable chromophore components generally fluoresce blue, red, violet, or purple color when exposed to ultraviolet light, or they may absorb light to reflect these same shades. These thiophene azo dyes are advantageous in providing a hueing effect, for example, a whitening effect to fabrics, while not building up over time and causing undesirable blue discoloration to the treated fabrics. The thiophene azo dyes are also generally stable to bleaching agents used in laundry care compositions.




dye

Metal free acid dyes, methods for the production thereof and their use

The present invention relates to dyes of the formula (I) in which R1 to R10, D1 and D2 are defined as given in claim 1, a process for preparing them, and their use for dyeing and printing hydroxyl- and/or carboxamido-containing materials.




dye

Disulfide dyes

Disclosed are compounds of formula (1) or formula (2). The compounds are useful for the dyeing of organic materials, such as keratin fibers, wool, leather, silk, cellulose or polyamides, especially keratin-containing fibers, cotton or nylon, and preferably hair, more preferably human hair. (1) (2). A-(X1)p—(Csat)r—S—S—(Csat)q—(X2)p-D (1)




dye

Method for dyeing plastic lens

A method of dyeing a plastic lens including applying a sublimation dye to a dyeing substrate, holding the dyeing substrate on a holding member, holding a plastic lens on the holding member at a position above the dyeing substrate, evacuating a vacuum vessel which accommodates the holding member, transferring the dyeing substrate from the holding member to a heating device provided in the vacuum vessel, so that the dyeing substrate is held to be heatable by the heating device, by vertically moving at least one of the holding member and the heating device, bringing the plastic lens in close proximity to the dyeing substrate by vertically moving at least one of the holding member and the heating device which holds the dyeing substrate, and dyeing the target surface of the plastic lens with the sublimation dye by sublimating the sublimation dye by heating the dyeing substrate using the heating device.




dye

Disperse dye mixtures, their preparation and use

The present invention provides dye mixtures containing at least one dye of formula (I) and at least one dye of formula (II) where T1, T2, R1 to R9 and n are each as defined in claim 1, processes for their preparation and their use.