Light-Activated Nanofibers: Advances in Photo-Responsive Electrospun Polymer Technologies

Polymer-Plastics Technology and Materials, Год журнала: 2024, Номер 64(4), С. 397 - 438

Опубликована: Окт. 1, 2024

Язык: Английский

---

Recent advances in photoresponsive printing inks for security encoding applications

Luminescence, Год журнала: 2024, Номер 39(6)

Опубликована: Июнь 1, 2024

Abstract Counterfeiting of banknotes, important documents, and branded goods continues to be a major worldwide problem for governments, businesses, consumers. This has serious financial, security, health implications. Due their stability printing on various substrates, the photochromic anticounterfeiting inks have received interest. There been agents, such as polymer nanoparticles, quantum carbon dots, organic inorganic fluorophores luminophores, which broadly used antiforging applications. In comparison materials better under reversible/long‐term light illumination. Recently, remarkable optical characteristics chemical photoluminescent agents led extensive usage products. also several strategies tackle rising counterfeiting. Both solvent‐based water‐based developed security encoding purposes. Additionally, methods, including screen printing, labeling, stamping, inkjet handwriting, that apply onto surfaces are discussed. The limitations potential future preparation combat counterfeiting were review would benefit academic researchers industrial developers who interested in area printing.

Язык: Английский

---

Modification of wood lignin and integration with multifunctional polyester nanocomposite

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 267, С. 131466 - 131466

Опубликована: Апрель 8, 2024

Язык: Английский

---

Photoluminescent polypropylene nanofiber-supported polyethylene terephthalate integrated with strontium aluminate phosphor

Journal of Photochemistry and Photobiology A Chemistry, Год журнала: 2024, Номер 453, С. 115675 - 115675

Опубликована: Апрель 13, 2024

Язык: Английский

---

Preparation of transparent electrospun nanofibrous membrane from long‐persistent phosphor‐reinforced polymer for security authentication

Journal of Applied Polymer Science, Год журнала: 2024, Номер 141(23)

Опубликована: Март 17, 2024

Abstract Photochromic inks have been a tempting authentication method to make commercial items more resistant counterfeiting. However, recent studies shown that photochromic major drawbacks, such as expensiveness and low durability. Herein, we report the development of new nanofibers for cutting‐edge anti‐counterfeiting uses. Lanthanide‐doped strontium aluminate nanoparticles (LSAN) were synthesized immobilized onto electrospun polyurethane (PUNF). Anti‐counterfeiting materials encapsulated with inorganic agent can guarantee photostability LSAN function an efficient whereas PUNF hosting matrix. Both reversibility prepared UV‐induced LSAN@PUNF found be rather high. Applying varying ratios resulted in distinct emission properties depending on content. The nanofibrous films showed green under UV illumination, no traces detected visible daylight. displayed diameters 3–6 nm, had 150–450 nm. Transparency was indicated by excitation peak at 347 color 530 current approach presented technology prevent forgery products.

Язык: Английский

---

Immobilization of rare-earth phosphor in electrospun nanofibrous label of cellulose acetate and polylactic acid biocomposite for information encryption

Reactive and Functional Polymers, Год журнала: 2024, Номер 199, С. 105909 - 105909

Опубликована: Апрель 6, 2024

Язык: Английский

---

Development of smart adhesive using lanthanide-doped phosphor and carboxymethyl cellulose-reinforced gum Arabic

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2024, Номер 317, С. 124397 - 124397

Опубликована: Май 3, 2024

Язык: Английский

---

Delignification of wood toward photoluminescent smart window infiltrated with glass nanofibers-reinforced polystyrene for multifunctional applications

Surfaces and Interfaces, Год журнала: 2024, Номер 51, С. 104832 - 104832

Опубликована: Июль 21, 2024

Язык: Английский

---

Silica nanoparticle-reinforced polyurethane plastic immobilized with strontium aluminate nanofiller: Ultraviolet protection, superhydrophobicity and photoluminescence

Journal of Photochemistry and Photobiology A Chemistry, Год журнала: 2024, Номер 456, С. 115808 - 115808

Опубликована: Июнь 3, 2024

Язык: Английский

---

Multi-Stimuli Responsive Viologen-Imprinted Polyvinyl Alcohol and Tricarboxy Cellulose Nanocomposite Hydrogels

Sensors, Год журнала: 2024, Номер 24(21), С. 6860 - 6860

Опубликована: Окт. 25, 2024

Photochromic inks have shown disadvantages, such as poor durability and high cost. Self-healable hydrogels photostability durability. Herein, a viologen-based covalent polymer was printed onto paper surface toward the development of multi-stimuli responsive chromogenic sheet with thermochromic, photochromic, vapochromic properties. Viologen created by polymerizing dialdehyde-based viologen hydroxyl-bearing dihydrazide in an acidic aqueous medium. The well immobilized colorimetric agent into polyvinyl alcohol (PVA)/tricarboxy cellulose (TCC)-based self-healable hydrogel. viologen/hydrogel nanocomposite films were applied surface. coloration measurements showed that when exposed to ultraviolet light, orange layer on switched green. photochromic film used develop anti-counterfeiting prints using organic hydrogel composed PVA/TCC composite polymer. Reversible photochromism strong observed papers UV irradiation. A detection limit monitored range 0.5-300 ppm for NH

Язык: Английский

---