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We demonstrate that thin films of metal-organic framework (MOF)-like materials, containing two perylenediimides (PDICl4, PDIOPh2) and a squaraine dye (S1), can be fabricated by layer-by-layer assembly (LbL). Interestingly, these LbL films absorb across the visible light region (400-750 nm) and facilitate directional energy transfer. Due to the high spectral overlap and oriented transition dipole moments of the donor (PDICl4 and PDIOPh2) and acceptor (S1) components, directional long-range energy transfer from the bluest to reddest absorber was successfully demonstrated in the multicomponent MOF-like films. These findings have significant implications for the development of solar energy conversion devices based on MOFs.
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http://dx.doi.org/10.1021/acsami.6b03307 | DOI Listing |
J Phys Chem Lett
September 2025
Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, United States.
Carbon dots (CDs) represent a new class of nontoxic and sustainable nanomaterials with increasing applications. Among them, bright and large Stokes-shift CDs are highly desirable for display and imaging, yet the emission mechanisms remain unclear. We obtained structural signatures for the recently engineered green and red CDs by ground-state femtosecond stimulated Raman spectroscopy (FSRS), then synthesized orange CDs with similar size but much higher nitrogen dopants than red CDs.
View Article and Find Full Text PDFJ Phys Chem Lett
September 2025
School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, People's Republic of China.
Inverted quantum dot light-emitting diodes (QLEDs) show great promise for next-generation displays due to their compatibility with integrated circuit architectures. However, their development has been hindered by inefficient exciton utilization and charge transport imbalance. Here, we present a strategy for regulating charge-exciton dynamics through the rational design of a multifunctional hole transport layer (HTL), incorporating polyethylenimine ethoxylated (PEIE) as a protective interlayer in fully-solution-processed inverted red QLEDs.
View Article and Find Full Text PDFSmall
September 2025
School of Chemistry and Chemical Engineering, Key Lab of Fuel Cell Technology of Guangdong Province, South China University of Technology, Guangzhou, 510641, China.
Aggregation-induced electrochemiluminescence (AIECL) is a promising strategy for enhancing electrochemiluminescence (ECL) efficiency by minimizing energy loss of excited-state ECL emitters. However, rational design of high-efficiency AIECL emitters is hindered by limited mechanistic understanding and an unclear structure-performance relationship. To address this, four supramolecular coordination frameworks (SCFs) with varying π-bridge structures are synthesized using pyridine-functionalized tetraphenylethene (TPE) as the ligand and Pt(II) as the coordination center.
View Article and Find Full Text PDFBioessays
September 2025
MY Small G Protein Research Group, Bioprocess Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Pulau Pinang, Malaysia.
Advanced biosensing technologies, such as Förster resonance energy transfer (FRET) and bioluminescence resonance energy transfer (BRET), have enabled real-time, high-resolution tracking of Rho GTPase activity, surpassing traditional methods like pull-down assays. However, current biosensors mainly detect the GTP-bound active state through effector interactions, without directly measuring Rho GTPase expression or identifying related biomarkers of abnormal activation. Small Rho GTPases are essential molecular switches that regulate key cellular processes such as cytoskeletal organization, cell movement, polarity, vesicle trafficking, and the cell cycle.
View Article and Find Full Text PDFACS Synth Biol
September 2025
ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, QLD 4000, Australia.
Fluorescent proteins (FPs) are commonly used as reporters to examine intracellular genetic, molecular, and biochemical status. Flow cytometry is a powerful technique for accurate quantification of single-cell fluorescent levels. Here, we characterize green, red, and blue FPs for use in yeast .
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