Photo-functionalized metal–organic frameworks for anti-counterfeiting applications

Abstract

Photo-functionalized metal-organic frameworks (PMOFs) have attracted extensive attention recently because of their intrinsic structures and rich fluorescent components, showing unique advantages and broad application prospects in optical anti-counterfeiting. This review...

Construction of Highly Luminescent Lanthanide Coordination Polymers and Their Visualization for Luminescence Sensing

“…Among them, anticounterfeiting technology in luminescence has become a hot research area due to its high safety, simplicity, and portability. The field of Ln-CP optical anticounterfeiting exhibits great potential due to the advantages of the structure as well as luminescence . A rational design, as well as the construction of Ln-CPs, can improve anticounterfeiting safety.…”

“…The field of Ln-CP optical anticounterfeiting exhibits great potential due to the advantages of the structure as well as luminescence. 43 A rational design, as well as the construction of Ln-CPs, can improve anticounterfeiting safety.…”

Anti‐Counterfeiting Application of Persistent Luminescence Materials and Its Research Progress

“…At present, various anti-counterfeiting technologies, including digital watermarking, [6,7] laser holography, [8,9] radio frequency identification, [10,11] bar codes [12,13] and fluorescent anti-counterfeiting methods, [14,15] have been developed DOI: 10.1002/lpor.202300751 as anti-counterfeiting shields in order to solve the long-standing global anti-counterfeiting problem, [16] but traditional anti-counterfeiting technologies have the disadvantages of low anticounterfeiting layers and being easily copied on a large scale. Further, luminescent printing anti-counterfeiting technologies based on carbon dots, [17,18] semiconductor quantum dots, [19,20] metalorganic skeletons [21][22][23] (MOF, rare earth element doping, and organic dyes) have been developed, which have improved the reliability of anti-counterfeiting compared with traditional anti-counterfeiting technologies, [24,25] and the security of their anti-counterfeiting encryption is more limited because the anticounterfeiting process is static. [26,27] No matter what kind of anticounterfeiting products, they need to meet the following major requirements: specific and stable identification features, long stability and security period, good compatibility with products, easy identification (sensory, simple instrument, and special instrument identification), and meet the requirements of the use environment, [28][29][30] and fluorescent materials with excellent optical properties, good chemical durability and unique physical properties are the urgent need for development.…”

“…At present, various anti‐counterfeiting technologies, including digital watermarking, [ 6,7 ] laser holography, [ 8,9 ] radio frequency identification, [ 10,11 ] bar codes [ 12,13 ] and fluorescent anti‐counterfeiting methods, [ 14,15 ] have been developed as anti‐counterfeiting shields in order to solve the long‐standing global anti‐counterfeiting problem, [ 16 ] but traditional anti‐counterfeiting technologies have the disadvantages of low anti‐counterfeiting layers and being easily copied on a large scale. Further, luminescent printing anti‐counterfeiting technologies based on carbon dots, [ 17,18 ] semiconductor quantum dots, [ 19,20 ] metal–organic skeletons [ 21–23 ] (MOF, rare earth element doping, and organic dyes) have been developed, which have improved the reliability of anti‐counterfeiting compared with traditional anti‐counterfeiting technologies, [ 24,25 ] and the security of their anti‐counterfeiting encryption is more limited because the anti‐counterfeiting process is static. [ 26,27 ]…”

Highly Stable Rare Earth Metal–Organic Frameworks for Fluorescence Recognition of Folic Acid, Proton Conduction, and Magnetic Refrigeration

“…RE-MOFs have properties such as perpetual porosity, adjustable hole size, and binding Lewis acid/base sites. Due to the high coordination number and unique optical properties of RE III ions, RE-MOFs could exhibit diverse structures and unique properties, which are widely used in optical, electrical, magnetic, and other fields. − In recent years, multifunctional RE-MOF materials have aroused great interest among chemists. − …”