Blue metal–organic framework encapsulated denatured R-phycoerythrin proteins for a white-light-emitting thin film

Abstract

Impregnating one denatured protein with dual color emissions in a blue metal organic framework thin film for high quality white light emission.

Conductive MOFs with Photophysical Properties: Applications and Thin-Film Fabrication

“…Dual emission for white light can be realized through introduction of luminescent guest molecules as well. The reported luminescent materials encapsulated into MOFs include iridium complex [ 61 ], fluorescent proteins (FPs) [ 62 ], carbon dots (CDs) [ 63 ], quantum dots (QDs), organic dyes and so on, as shown in Table 4 . With optimal amount of guest molecules and excitation wavelengths, white light emission can be observed in the synthesized guest@MOF hybrids.…”

“…It should be noted that sometimes the luminescence bands of guest molecules will be influenced and changed upon encapsulation into MOFs. For example, R-phycoerythrin (R-PE) proteins were denatured after embedded into HSB-W1 framework, which inhibited their pristine orange luminescence at 578 nm and aroused new green (518 nm) and red (600, 647 nm) luminescence [ 62 ]. Synergy of emissions from R-PE and blue-light-emitting HSB-W1 finally resulted in high-quality white light emission with CIE of (0.33, 0.34).…”

Biogenic fluorescent protein–silk fibroin phosphors for high performing light-emitting diodes

“…This leads to Bio-HLEDs with enhanced stabilities of 1.2 h (on chip) and 4500 h (remote) operating at high applied currents of 200 mA compared to those using FP-polymer as bio-phosphors -e.g., 1.8 min (on-chip) and o300 h (remote). It is noteworthy that the device performance of this novel class of fully biogenic phosphor-based Bio-HLEDs stands out among other Bio-HLEDs based on biogenic matrices embedding artificial emitters 43,50,51,80,81 and biogenic emitters in MOFs, 41,42 polymers, [33][34][35][36]39,40,47,82 and dry films 48,49,53 as summarized in Table S1 (ESI †).…”

“…This is related to (i) their negative ecological impact, i.e., mining, lack of recycling, and use of toxic elements, 27,28 and (ii) the visual and non-visual health effects under long exposure to blue light -i.e., irreversible damage of photoreceptors in young children and elderly people along with the alteration of the natural biorhythm of the body (circadian rhythm). [29][30][31][32] To date, there are two types of bio-phosphors, namely (i) biogenic emitters like FPs stabilized in polymer matrices (FP-polymer) [33][34][35][36][37][38][39][40] and metal organic frameworks (FP-MOF) 41,42 and (ii) artificial emitters stabilized in biogenic matrices like DNA, 43 proteins, 24,[44][45][46][47][48][49] polysaccharides, [50][51][52] and cellulose. 50,51,53 Table S1 (ESI †) summarizes the most important figures of merit of these contributions.…”

Rare Earth‐Free Luminescent Materials for WLEDs: Recent Progress and Perspectives

“…Under the excitation of UV LED, the material exhibited arm white light emission, and a quantum yield as high as 60%. [ 153 ] Table 5 was constructed with comparative analysis of the different characteristics of the materials explored in this section.…”