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Journal articles on the topic 'Halochromic'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Lim, Taekyung, Jeong Hui Lee, Keun-Hyeok Yang, Sanghyun Ju, and Sang-Mi Jeong. "Highly elastic halochromic fibers capable of reversible sensing of acidic/basic vapor for use in wearable textiles." AIP Advances 12, no. 10 (2022): 105011. http://dx.doi.org/10.1063/5.0112751.

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Halochromic sensors, which allow users to visually recognize exposure to acid/base chemicals that are harmful to the human body, are routinely used in a wide range of industries, such as pharmaceuticals, biotechnology, cosmetics, and environmental/human monitoring systems. In this study, halochromic fibers that operate stably, even when exposed to rain or sweat and repeated stretching–releasing, were investigated. While the halochromic mesoporous silica was synthesized using tetraethylorthosilicate and cetyltrimethylammonium bromide, methyl yellow (MY) and bromothymol blue (BTB) as halochromic

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2

Chan, Qi Hua, Muhammad Zulkarnain Zamri, Arjulizan Rusli, et al. "Additive Manufacturing of Halochromic Polylactic Acid (PLA)." Advanced Engineering Forum 51 (January 12, 2024): 9–17. http://dx.doi.org/10.4028/p-asnd6w.

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With increasing concerns regarding plastic waste and pollution, researchers have been looking to develop advanced materials from biodegradable plastics. This study features a halochromic biodegradable polymer produced using additive manufacturing. The purpose of this research is to fabricate halochromic polylactic acid (PLA) filaments and assess its halochromic behaviour, mechanical and chemical properties of the 3D printed PLA specimens. PLA/polyethylene glycol (PEG)/bromocresol purple (BCP) compound was prepared and added in extrusion to produce a 3D printing filament. Dumbbell-shaped and re

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3

Efanov, S. A., T. N. Kudryavtseva, E. V. Grekhneva, and E. A. Dorofeeva. "Textile-based indicator for acid-base titration." Industrial laboratory. Diagnostics of materials 91, no. 3 (2025): 11–15. https://doi.org/10.26896/1028-6861-2025-91-3-11-15.

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In the present work, textile halochromic materials were obtained, which were tested as indicators of acid-base titration. Textile materials were obtained by functionalization of cotton fabric with halochromic disazo derivatives of 4,4’-diaminostilbene-2,2’-disulfonic acid using direct dyeing technology. Rectangular fragments of halochromic textile material, 20 by 20 mm in size, were placed directly into the titrated solution. The range of color change and the rate of its change were studied in the process of potentiometric titration of sodium hydroxide, sodium bicarbonate and tap water. Testin

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4

Van der Schueren, Lien, and Karen de Clerck. "Halochromic Textile Materials as Innovative pH-Sensors." Advances in Science and Technology 80 (September 2012): 47–52. http://dx.doi.org/10.4028/www.scientific.net/ast.80.47.

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Recently, an increasing interest in pH-sensitive textiles is recognized. These chromic textiles can be used as flexible sensors for various applications. The aim of the current research is to develop textile pH-sensors through the application of pH-sensitive dyes on various textile materials using different techniques. The results of our study show that halochromic dyes can be incorporated into conventional textiles by a conventional dyeing technique. Also coating the fabrics with a sol-gel layer containing the halochromic dye proved to be successful. The majority of these developed materials

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5

Ibrahim, Myasar Kh, and Shireen R. Mohammed. "New Synthesis, Solvatochromism, Halochromism and Dying Applications of Azo Compound 4-hydroxy-3-((3-nitrophenyl)diazenyl)benzaldehyde." Oriental Journal Of Chemistry 40, no. 4 (2024): 987–96. http://dx.doi.org/10.13005/ojc/400409.

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This work includes synthesis of the novel azo compound, which consists of diazotization of 3-nitroaniline followed by reaction with 4-hydroxybenzaldehyde in presence of sodium carbonate. The synthesized azo compound was confirmed by characterization, using FT-IR,1HNMR, 13CNMR and GC-MS spectra. The azo compound was screened for solvatochromism, Halochromism using UV-Vis spectrophotometer, and found that the azo compound exhibited low solvatochromic and good Halochromic properties. While the dying study (Dye-doped Polymer Films), Poly ethylene was found the best polymer dyed by azo compound and

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6

Kusimo, Michael O., Henry Ukoha, Aderonke Oludare, Oluwatoyin Afolabi, and Matthew Agwae. "Halochromic properties and antimicrobial potential of crude extracts from five species of ornamental plants." UNED Research Journal 11, no. 3 (2019): 283–91. http://dx.doi.org/10.22458/urj.v11i3.2586.

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Introduction: the colours of flowers are a result of secondary metabolites that have long been used in the medical and textile industries, and those that are halochromic are used in colour display because they change color according to pH changes, but many species are yet to be studied in detail. Objective: to explore the halochromic properties and the antimicrobial potentials of the crude extracts of several ornamental plants. Methods: we used aqueous and organic solvents to extract pigments from petals of five fascinating flowers planted around International Institute of Tropical Agriculture

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7

Elveren, Beste, Silvo Hribernik, and Manja Kurečič. "Fabrication of Polysaccharide-Based Halochromic Nanofibers via Needle-Less Electrospinning and Their Characterization: A Study of the Leaching Effect." Polymers 14, no. 19 (2022): 4239. http://dx.doi.org/10.3390/polym14194239.

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Responsive materials, i.e., smart materials, have the ability to change their physical or chemical properties upon certain external signals. The development of nanofibrous halochromic materials, specifically combining the pH-sensitive functionality and unique nanofiber properties, could yield interesting new applications, especially when the common problem of dye leaching is successfully tackled. Therefore, in this article, we studied the fabrication process of polysaccharide-based halochromic nanofibrous materials by using a combination of various halochromic dyes (bromothymol blue, bromocres

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8

Fadhila, A. N., E. Warsiki, and S. Yuliani. "Halochromic Polyaniline as smart detector packaging for fresh food: a review." IOP Conference Series: Earth and Environmental Science 1358, no. 1 (2024): 012013. http://dx.doi.org/10.1088/1755-1315/1358/1/012013.

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Abstract Early spoilage is a challenge that is often encountered in fresh food. One prevention that can be done is by using packaging technology. There has been an increasing interest in using smart detector packaging for fresh products. Smart detector has high sensitivity and is responsive to visual changes when exposed to pH, temperature, water activity, or composition. The advantage of using a smart detector is that it can detect and give information on which products are safe to consume and which are not. Overall, the concept of a smart detector is not much different from the function of s

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9

Trovato, Valentina, Alessio Mezzi, Marco Brucale, et al. "Sol-Gel Assisted Immobilization of Alizarin Red S on Polyester Fabrics for Developing Stimuli-Responsive Wearable Sensors." Polymers 14, no. 14 (2022): 2788. http://dx.doi.org/10.3390/polym14142788.

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In the field of stimuli-responsive materials, introducing a pH-sensitive dyestuff onto textile fabrics is a promising approach for the development of wearable sensors. In this paper, the alizarin red S dyestuff bonded with a sol-gel precursor, namely trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane, was used to functionalize polyethylene terephthalate fabrics, a semi-crystalline thermoplastic polyester largely used in the healthcare sector mainly due to its advantages, including mechanical strength, biocompatibility and resistance against abrasion and chemicals. The obtained hybrid halochromic

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10

Ribeiro, Ana Isabel, Bárbara Vieira, Cátia Alves, et al. "Halochromic Silk Fabric as a Reversible pH-Sensor Based on a Novel 2‑Aminoimidazole Azo Dye." Polymers 15, no. 7 (2023): 1730. http://dx.doi.org/10.3390/polym15071730.

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Textiles are important components for the development of lightweight and flexible displays useful in smart materials. In particular, halochromic textiles are fibrous materials with a color-changing ability triggered by pH variations mainly based on pH-sensitive dye molecules. Recently, a novel class of 2-aminoimidazole azo dyes was developed with distinct substituent patterns. In this work, silk fabric was functionalized through exhaustion for the first time with one of these dyes (AzoIz.Pip). The halochromic properties of the dye were assessed in an aqueous solution and after silk functionali

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11

Steyaert, Iline, Gertjan Vancoillie, Richard Hoogenboom, and Karen De Clerck. "Dye immobilization in halochromic nanofibers through blend electrospinning of a dye-containing copolymer and polyamide-6." Polymer Chemistry 6, no. 14 (2015): 2685–94. http://dx.doi.org/10.1039/c5py00060b.

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12

Tatsumi, Yuto, Noriko Fujinaga, Megumi Kasuno, et al. "A photo- and halochromic multicolor switching system consisting of diarylethene and malachite green moieties." New J. Chem. 38, no. 12 (2014): 5706–14. http://dx.doi.org/10.1039/c4nj00434e.

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13

Ito, Suguru, Chika Nishimoto, and Sayaka Nagai. "Sequential halochromic/mechanochromic luminescence of pyridyl-substituted solid-state emissive dyes: thermally controlled stepwise recovery of the original emission color." CrystEngComm 21, no. 38 (2019): 5699–706. http://dx.doi.org/10.1039/c9ce01037h.

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14

Zhang, Yang, Jaume Garcia-Amorós, Burjor Captain, and Françisco M. Raymo. "A fluorescent and halochromic indolizine switch." Journal of Materials Chemistry C 4, no. 14 (2016): 2744–47. http://dx.doi.org/10.1039/c5tc03331d.

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15

Rahman, Mustafijur, Mohammad Abbas Uddin, Md Moynul Hassan Shibly, Nusrat Binta Hossain, Mohammad Forhad Hossain, and Muriel Rigout. "Synthesis and Characterisation of Azo-Based Dichlorotriazine Reactive Dye with Halochromic Behaviour." TEKSTILEC 64, no. 3 (2021): 247–59. http://dx.doi.org/10.14502/tekstilec2021.64.247-259.

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Halochromism or pH sensitivity has tremendous potential for applications in various textile fields, such as protective clothing, wound dressings, etc. Reactive dye is mostly used to colour cotton or other regenerated cellulose fibres due to its better fastness and wide range of hue, from vivid to dull shades. In this research work, an azo-based dichlorotriazine reactive dye was synthesised from H-acid (4-amino-5-hydroxy-2,7-naphthalen¬edisulfonic acid) and 4-nitroaniline, which incorporates a halochromic behaviour. The change of colour of this dye was evaluated both in the the solution stage a

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16

Abdelrahman, Meram S., Tawfik A. Khattab та Samir Kamel. "Development of a novel colorimetric thermometer based on poly(N-vinylcaprolactam) with push–π–pull tricyanofuran hydrazone anion dye". New Journal of Chemistry 45, № 12 (2021): 5382–90. http://dx.doi.org/10.1039/d1nj00221j.

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17

Black, Hayden T., Ian Pelse, Rylan M. W. Wolfe, and John R. Reynolds. "Halochromism and protonation-induced assembly of a benzo[g]indolo[2,3-b]quinoxaline derivative." Chemical Communications 52, no. 87 (2016): 12877–80. http://dx.doi.org/10.1039/c6cc06443d.

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18

Alias, Siti Amirah, and Ku Marsilla Ku Ishak. "Reversible Poly Lactic Acid (PLA) Film for Volatile Organic Compounds (VOCs) Gas Sensor." Key Engineering Materials 907 (January 21, 2022): 32–37. http://dx.doi.org/10.4028/www.scientific.net/kem.907.32.

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The detection of volatile organic compounds (VOCs) including hydrochloric acid (HCl), acetic acid (CH3COOH), and ammonia (NH3) in indoor air is crucial due to human health safety. In this study, halochromic poly lactic acid (PLA) film sensor were prepared. PLA film were fabricated by addition of polyethylene glycol (PEG) and bromocresol purple (BCP) into PLA using solution casting method. Visual observation and mechanical properties of the film were determined as well as its spectral properties to assess the potential of halochromic film as gas sensor. The response of the PLA film to acidic an

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19

Tang, Sicheng, Yang Zhang, Ek Raj Thapaliya, Adrienne S. Brown, James N. Wilson, and Françisco M. Raymo. "Highlighting Cancer Cells with Halochromic Switches." ACS Sensors 2, no. 1 (2016): 92–101. http://dx.doi.org/10.1021/acssensors.6b00592.

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20

Trovato, Valentina, Silvia Sfameni, Giulia Rando, et al. "A Review of Stimuli-Responsive Smart Materials for Wearable Technology in Healthcare: Retrospective, Perspective, and Prospective." Molecules 27, no. 17 (2022): 5709. http://dx.doi.org/10.3390/molecules27175709.

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In recent years thanks to the Internet of Things (IoT), the demand for the development of miniaturized and wearable sensors has skyrocketed. Among them, novel sensors for wearable medical devices are mostly needed. The aim of this review is to summarize the advancements in this field from current points of view, focusing on sensors embedded into textile fabrics. Indeed, they are portable, lightweight, and the best candidates for monitoring biometric parameters. The possibility of integrating chemical sensors into textiles has opened new markets in smart clothing. Many examples of these systems

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21

Khattab, Tawfik A. "Novel solvatochromic and halochromic sulfahydrazone molecular switch." Journal of Molecular Structure 1169 (October 2018): 96–102. http://dx.doi.org/10.1016/j.molstruc.2018.05.048.

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22

Kim, Sung-Hoon, and Jin-Seok Bae. "Halochromic chemosensor prepared by pyran-based nanofibers." Fibers and Polymers 14, no. 12 (2013): 1981–84. http://dx.doi.org/10.1007/s12221-013-1981-7.

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23

Jesus, Mathew Roshan, Raj Sarika, and Dhesingh Ravi Shankaran. "Curcumin Labeled PMMA Halochromic Smart Flexible Films." Materials Focus 5, no. 2 (2016): 177–81. http://dx.doi.org/10.1166/mat.2016.1299.

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24

Mínguez-García, David, Ignacio Montava, Marilés Bonet-Aracil, Jaime Gisbert-Payá, and Pablo Díaz-García. "PVA Nanofibers as an Insoluble pH Sensor." Polymers 15, no. 23 (2023): 4480. http://dx.doi.org/10.3390/polym15234480.

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Turmeric has been widely studied as a color indicator for pH variations due to its halochromic properties. It has been tested in solution or included in some polymeric matrices. Some studies have demonstrated that its change in color is due to the tautomeric species of curcumin, and this property can be observed even if turmeric is assimilated in a film or nanofiber. Chitosan/polyethylene oxide (PEO) polymers have been tested in previous studies. Polyvinyl alcohol (PVA) nanofibers are used as potential carriers of drugs once they are insolubilized. The aim of this work is to cross-link PVA wit

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25

Grigoryan, A. Yu, E. S. Mishina, T. N. Kudryavtseva, et al. "Dressing Material With Halochromic Dye as an Information Source in Wound Healing Monitoring." Innovative Medicine of Kuban, no. 4 (November 15, 2024): 85–92. http://dx.doi.org/10.35401/2541-9897-2024-9-4-85-92.

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Background: The percentage of clean-wound infection remains fairly high so far: 2% to 5%. Therefore, monitoring wound healing is a critical task in modern surgery.Objective: To develop and test a dressing material with halochromic dye in order to determine the suppuration of a clean wound of the skin and soft tissues.Material and methods: The experiment was conducted on 30 Wistar rats: clean wounds were formed and then covered with a dressing soaked in halochromic dye. During the experiment, we measured the pH of the wounds and wound area and determined the qualitative and quantitative composi

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26

Hamidah, Syalyva, Annur Ahadi Abdillah, and Laksmi Sulmartiwi. "FISHERIES PRODUCT SPOILED MONITORING USING SMART PACKAGING CONTAIN ANTHOCYANIN: A REVIEW." Jurnal Perikanan Unram 15, no. 1 (2025): 256–68. https://doi.org/10.29303/jp.v15i1.1342.

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Smart packaging is currently demanded to monitor the spoilage level of packaged products, for instance fishery products, characterized as perishable food. Smart packaging requires a halochromic substance, for instance, natural pigments extracted from fruits or flower. The natural pigment extracted from the plant should have a halochromic ability for example anthocyanins compound. Anthocyanin compounds are incorporated to edible film to produce smart film. The smart film has the ability to screen the quality and to monitor freshness of fishery products by demonstrating color changes from purple

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27

Hong, Taekuk, Yong Kyu Choi, Taekyung Lim, Keumyoung Seo, Sang‐Mi Jeong, and Sanghyun Ju. "Elastic Halochromic Fiber as a Reversible pH Sensor." Advanced Materials Technologies 6, no. 3 (2021): 2001058. http://dx.doi.org/10.1002/admt.202001058.

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28

Maeda, Takeshi, and Frank Würthner. "Halochromic and hydrochromic squaric acid functionalized perylene bisimide." Chemical Communications 51, no. 36 (2015): 7661–64. http://dx.doi.org/10.1039/c5cc01691f.

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29

Pakolpakçıl, Ayben, Bilgen Osman, Elif Tümay Özer, et al. "Halochromic composite nanofibrous mat for wound healing monitoring." Materials Research Express 6, no. 12 (2020): 1250c3. http://dx.doi.org/10.1088/2053-1591/ab5dc1.

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30

Leite, Liliana, Inês Boticas, Miguel Navarro, et al. "Halochromic Inks Applied on Cardboard for Food Spoilage Monitorization." Materials 15, no. 18 (2022): 6431. http://dx.doi.org/10.3390/ma15186431.

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Control of food spoilage is a critical concern in the current world scenario, not only to ensure the quality and safety of food but also to avoid the generation of food waste. This paper evaluates a dual-sensor strategy using six different pH indicators stamped on cardboard for the detection of spoilage in three different foods: beef, salmon, and strawberries. After function validation and formulation optimizations in the laboratory, the halochromic sensors methyl orange and bromocresol purple 2% (w/v) were stamped on cardboard and, in contact with the previously mentioned foods, were able to

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31

Zhang, Lianhai, Zhiwei Li, Ruixiang Chang, Yu Chen, and Wenqin Zhang. "Synthesis and characterization of novel phenolphthalein immobilized halochromic fiber." Reactive and Functional Polymers 69, no. 4 (2009): 234–39. http://dx.doi.org/10.1016/j.reactfunctpolym.2009.01.001.

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32

Das, Rashmi J., and Kingsuk Mahata. "Synthesis, Photophysical, Electrochemical, and Halochromic Properties of peri-Naphthoindigo." Organic Letters 20, no. 16 (2018): 5027–31. http://dx.doi.org/10.1021/acs.orglett.8b02178.

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33

de Almeidaa, Ricardo L., Marcos Caroli Rezendeb, and Eduardo Stadlera. "Halochromic Properties of cis-Ru(bpy)2Cl2 Inorganic Solvents." Spectroscopy Letters 32, no. 3 (1999): 497–504. http://dx.doi.org/10.1080/00387019909350001.

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34

Xiao, Bo, Timothy L. Easun, Amarajothi Dhakshinamoorthy, et al. "Porous macromolecular dihydropyridyl frameworks exhibiting catalytic and halochromic activity." J. Mater. Chem. A 2, no. 46 (2014): 19889–96. http://dx.doi.org/10.1039/c4ta02521k.

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35

Jia Yam, Ng, Arjulizan Rusli, Zuratul Ain Abdul Hamid, Muhammad Khalil Abdullah, and Ku Ishak Ku Marsilla. "Halochromic poly (lactic acid) film for acid base sensor." Journal of Applied Polymer Science 138, no. 13 (2020): 50093. http://dx.doi.org/10.1002/app.50093.

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36

Lin, Mei-Jin, Benjamin Fimmel, Krzysztof Radacki, and Frank Würthner. "Halochromic Phenolate Perylene Bisimides with Unprecedented NIR Spectroscopic Properties." Angewandte Chemie International Edition 50, no. 46 (2011): 10847–50. http://dx.doi.org/10.1002/anie.201105129.

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37

Zhang, Zhongbo, Wei Sun, Huanxiang Zhang, et al. "Butterfly‐like Tetraazaacenequinodimethane Derivatives: Synthesis, Structure and Halochromic Properties." Chemistry – An Asian Journal 15, no. 14 (2020): 2198–202. http://dx.doi.org/10.1002/asia.202000587.

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38

Lin, Mei-Jin, Benjamin Fimmel, Krzysztof Radacki, and Frank Würthner. "Halochromic Phenolate Perylene Bisimides with Unprecedented NIR Spectroscopic Properties." Angewandte Chemie 123, no. 46 (2011): 11039–42. http://dx.doi.org/10.1002/ange.201105129.

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39

Păușescu, Iulia, Izolda Kántor, György Babos та ін. "Halochromic Behavior and Anticancer Effect of New Synthetic Anthocyanidins Complexed with β-Cyclodextrin Derivatives". International Journal of Molecular Sciences 23, № 15 (2022): 8103. http://dx.doi.org/10.3390/ijms23158103.

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Anthocyanidins, the aglycons of anthocyanins, are known, beyond their function in plants, also as compounds with a wide range of biological and pharmacological activities, including cytostatic effect against various cancer cells. The nature and position of the substituents in the flavylium cation is essential for such biological properties, as well as the equilibrium between the multistate of the different chemical species that are generated by the flavylium cation, including quinoidal base, hemiketal, and cis- and trans-chalcones. In this work, eight new flavylium derivatives were synthesized

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40

Kim, Daeuk, Ronnie S. Concepcion, Joseph Rey H. Sta. Agueda, and Jubert C. Marquez. "Optimization of Dye and Plasticizer Concentrations in Halochromic Sensor Films for Rapid pH Response Using Bird-Inspired Metaheuristic Algorithms." Sensors 25, no. 11 (2025): 3494. https://doi.org/10.3390/s25113494.

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The pH level of a wound environment is a crucial biomarker for monitoring wound healing, particularly in chronic wounds, where alkalinity (pH > 7) is linked to bacterial colonization and infection. This study developed and optimized a halochromic sensor film composed of polyvinyl alcohol (PVA), polyethylene glycol (PEG), and bromothymol blue (BTB) to enable rapid and reliable pH-responsive color transitions. Feature selection using Principal Component Analysis (PCA) and the ReliefF algorithm identified Hue, Saturation, and a as key features influencing pH responsivity. Optimization of BTB (

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41

Alias, Siti Amirah, Hayati Samsudin, Syazana Ahmad Zubir, and Ku Ishak Ku Marsilla. "Halochromic PLA / PEG as real‐time solution and vapor sensing." Journal of Applied Polymer Science 139, no. 20 (2022): 52159. http://dx.doi.org/10.1002/app.52159.

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42

Zhigulin, G. Yu, G. S. Zabrodina, M. A. Katkova, and S. Yu Ketkov. "Polynuclear Glycinehydroximate Cu(II)–Gd(III) Metallamacrocyclic Complexes: Halochromic Properties." Russian Journal of Coordination Chemistry 45, no. 5 (2019): 356–60. http://dx.doi.org/10.1134/s107032841905004x.

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43

Mussagy, Cassamo U., Grazielle Oliveira, Mushtaq Ahmad, Ahmad Mustafa, Rondinelli D. Herculano, and Fabiane O. Farias. "Halochromic properties of carotenoid-based films for smart food packaging." Food Packaging and Shelf Life 44 (July 2024): 101325. http://dx.doi.org/10.1016/j.fpsl.2024.101325.

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44

Noshirvani Sharifabad, Azita, and Seyed Hajir Bahrami. "Halochromic Chemosensor From Poly(acrylonitrile)/Phenolphthalein Nanofibers as pH Sensor." IEEE Sensors Journal 16, no. 4 (2016): 873–80. http://dx.doi.org/10.1109/jsen.2015.2495338.

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45

Aghaei, Zahra, Behrouz Ghorani, Bahareh Emadzadeh, Rassoul Kadkhodaee, and Nick Tucker. "Protein-based halochromic electrospun nanosensor for monitoring trout fish freshness." Food Control 111 (May 2020): 107065. http://dx.doi.org/10.1016/j.foodcont.2019.107065.

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46

Chung, Yong-Chan, In-Hong Jung, Jae Won Choi, and Byoung Chul Chun. "Characterization and proof testing of the halochromic shape memory polyurethane." Polymer Bulletin 71, no. 5 (2014): 1153–71. http://dx.doi.org/10.1007/s00289-014-1116-3.

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47

Hou, Qiufei, Jiajie Wu, Jiemei Liang та ін. "Synthesis and Photoluminescence Behavior of π-Conjugated 3-Substituted Isoquinoline Derivatives". Current Organic Chemistry 24, № 13 (2020): 1517–26. http://dx.doi.org/10.2174/1385272824999200622112718.

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In this work, a series of &#960;-conjugated isoquinoline derivatives, bearing diverse aryl groups at the 3-position, were synthesized in a facile and straightforward manner. A Pdcatalyzed protocol, the Suzuki-Miyaura coupling of 3-bromoisoquinoline and different aryl boronic acids, was applied, and the structures of the resulting target compounds were determined by 1H-NMR, 13C-NMR, and HRMS. Furthermore, the photophysical properties of these compounds were investigated. Distinct halochromic properties were revealed for them, which exhibited UV emissions in ethanol but visible emissions in

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48

Kert, Mateja, and Jasna Skoko. "Formation of pH-Responsive Cotton by the Adsorption of Methyl Orange Dye." Polymers 15, no. 7 (2023): 1783. http://dx.doi.org/10.3390/polym15071783.

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The interest in pH-sensitive textile sensors is growing in the global market. Due to their low-cost production, mechanical stability, flexibility, air-permeability, washability, and reusability, they are more suitable than electronic sensor systems. The research tailored the pH-sensitive textile by applying the pH indicator methyl orange to the cotton fabric during conventional dyeing. Adsorption of methyl orange dye to cotton fabric is hindered due to electrostatic repulsive forces between dye anions and negatively charged cotton fibre. To overcome this problem, chemical modification of cotto

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Lee, Jeong Hui, Jeeyin Park, Jonguk Yang, et al. "Hydrophobic halochromic aerogel capable of reversibly measuring acidic and basic vapors." AIP Advances 11, no. 11 (2021): 115115. http://dx.doi.org/10.1063/5.0067873.

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Zubova, Ganna, Hanna Melnyk, Iryna Zaets, et al. "Halochromic Bacterial Cellulose/Anthocyanins Hybrid Polymer Film with Wound-Healing Potential." Polymers 16, no. 16 (2024): 2327. http://dx.doi.org/10.3390/polym16162327.

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Abstract:

Polymer-based dressings deriving from natural biomaterials have advantages such as nontoxicity, biocompatibility, and mechanical stability, which are essential for efficient wound healing and microbial infection diagnostics. Here, we designed a prototype of an intelligent hydrogel dressing on the base of bacterial cellulose (BC) for monitoring wound microbial infection due to the uploaded natural pH dye-sensor, anthocyanins (ANC) of elderberry fruit (Sambucus nigra L.). The highest sensor responses to bacterial metabolites for ANC immobilized to BC were observed at pH 5.0 and 6.0. The detectio

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