Gamma-irradiation induced nonconventional fluorescence enhancement in silicone foams
Source abstract
Abstract
An unexpected fluorescence enhancement phenomenon in silicone foams induced by gamma-irradiation is reported. These materials contain no traditional luminophores. The fluorescence intensity increases with the absorbed dose (within 1000 Gy). Time-dependent density functional theory (TDDFT) calculations suggest that the mechanism is a crosslinking-enabled emission process, which is enhanced by gamma-irradiation. The fluorescence changes are visible and can even applied to distinguish irradiated silicone foam samples with absorbed doses less than 25 Gy, achieving sensitive visualization of gamma-irradiation damage. The potential applications for radiation damage self-reporting and information encryption are demonstrated. The fluorescence intensity shows similar trends with radiolysis gas products (typical aging parameter) in early-stage irradiation, which can represent radiation-induced crosslinking and radiolysis respectively to reveal the changes of materials after low dose irradiation from two aspects. This work could broaden the application of nonconventional fluorescent materials and help understand the effects of low-dose radiation on silicone materials.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Luminescence and Fluorescent Materials · Silicon Nanostructures and Photoluminescence · Thin-Film Transistor Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (65)
Show source-provided references
1. Non-traditional intrinsic luminescence: inexplicable blue fluorescence observed for dendrimers, macromolecules and small molecular structures lacking traditional/conventional luminophores10.1016/j.progpolymsci.2018.09.004 ↗
2. Ultra-strong long-chain polyamide elastomers with programmable supramolecular interactions and oriented crystalline microstructures10.1038/s41467-019-09218-6 ↗
3. Generating circularly polarized luminescence from clusterization‐triggered emission using solid phase molecular self-assembly10.1038/s41467-021-25789-9 ↗
4. Crosslink-enhanced emission effect on luminescence in polymers: advances and perspectives10.1002/anie.201916591 ↗
5. Nonconventional luminophores: characteristics, advancements and perspectives10.1039/D0CS01087A ↗
6. Multiple hydrogen-bonding induced nonconventional red fluorescence emission in hydrogels10.1038/s41467-024-47880-7 ↗
7. The role of branch cell symmetry and other critical nanoscale design parameters in the determination of dendrimer encapsulation properties10.3390/biom10040642 ↗
8. Nonconventional aggregation‐induced emission polysiloxanes: structures, characteristics, and applications
9. Toward understanding the cross-linking from molecular chains to aggregates by engineering terminals of supramolecular hyperbranched polysiloxane
10. Silicon-assisted unconventional fluorescence from organosilicon materials10.1016/j.ccr.2021.213887 ↗
11. Do excited silicon–oxygen double bonds emit light?10.1021/jp500013g ↗
12. Multiring-induced multicolour emission: hyperbranched polysiloxane with silicon bridge for data encryption10.1039/D0QM00075B ↗
13. Construction of fluorescent hyperbranched polysiloxane-based clusteroluminogens with enhanced quantum yield and efficient cellular lighting10.1002/agt2.267 ↗
14. Unexpected strong blue photoluminescence produced from the aggregation of unconventional chromophores in novel siloxane–poly(amidoamine) dendrimers10.1021/ma502352x ↗
15. High fluorescence quantum yield based on the through-space conjugation of hyperbranched polysiloxane10.1021/acs.macromol.9b00263 ↗
16. Effects of combined neutron and gamma irradiation upon silicone foam10.1016/j.radphyschem.2016.12.005 ↗
17. Coupled effects of temperature and compressive strain on aging of silicone rubber foam10.1016/j.polymdegradstab.2021.109810 ↗
18. Dose rate effects of gamma irradiation on silicone foam10.1016/j.polymdegradstab.2017.11.016 ↗
19. Thermo-oxidative aging behavior and lifetime prediction of rubber latex foam with various natural-to-synthetic ratios10.1002/adem.202300200 ↗
20. Overview of accelerated aging and polymer degradation kinetics for combined radiation-thermal environments10.1016/j.polymdegradstab.2019.06.007 ↗
21. Dose rate effects in radiation degradation of polymer-based cable materials10.1016/S0168-583X(03)00626-8 ↗
22. Mössbauer, NMR and ATR-FTIR spectroscopic investigation of degradation in RTV siloxane foams10.1016/j.polymdegradstab.2006.11.017 ↗
23. Coupled aging effects in nanofiber-reinforced siloxane foams10.1016/j.polymdegradstab.2018.01.010 ↗
24. Influence of γ-irradiation on mechanical behaviors of poly methyl-vinyl silicone rubber foams at different temperatures10.1016/j.mechmat.2020.103639 ↗
25. The effects of gamma irradiation on RTV polysiloxane foams10.1016/j.polymdegradstab.2015.03.021 ↗
26. UV laser induced fluorescence of unirradiated and irradiated low density polyethylene10.1016/S1010-6030(99)00039-8 ↗
27. Characterisation of crosslinked polyethylene materials by luminescence techniques10.1023/A:1014901809981 ↗
28. Accelerated aging of polyethylene materials at high oxygen pressure characterized by photoluminescence spectroscopy and established aging characterization methods10.1016/j.polymdegradstab.2014.06.021 ↗
29. General characteristics of photoluminescence from dry heat aged polymeric materials10.1016/j.polymdegradstab.2016.09.032 ↗
30. Fluorescence monitoring of the degradation evolution of aliphatic polyesters10.1039/D2CC02150A ↗
31. Prevent or cure—the unprecedented need for self-reporting materials10.1002/anie.202012592 ↗
32. The vibrant interplay of light and self-reporting macromolecular architectures10.1002/macp.202100057 ↗
33. Truly multicolor emissive hyperbranched polysiloxane: synthesis, mechanism study, and visualization of controlled drug release10.1021/acs.biomac.1c01396 ↗
34. Energy-transfer-induced multiexcitation and enhanced emission of hyperbranched polysiloxane10.1021/acs.biomac.0c00823 ↗
35. Density-functional theory for time-dependent systems10.1103/PhysRevLett.52.997 ↗
36. Acceptor plane expansion enhances horizontal orientation of thermally activated delayed fluorescence emitters10.1126/sciadv.aba7855 ↗
37. Visible-light-excited robust room-temperature phosphorescence of dimeric single-component luminophores in the amorphous state10.1038/s41467-024-47937-7 ↗
38. Intrinsically stretchable organic photovoltaic thin films enabled by optimized donor–acceptor pairing10.1021/acs.macromol.3c01349 ↗
39. D-O-A based organic phosphors for both aggregation-induced electrophosphorescence and host-free sensitization10.1038/s41467-023-37414-y ↗
40. Construction of room temperature phosphorescent materials with ultralong lifetime by in-situ derivation strategy10.1038/s41467-023-39795-6 ↗
41. Effect of different substituent on the ESIPT process and fluorescence features of 2-(2-hydroxyphenyl)benzoxazole derivatives: a DFT/TD-DFT study10.1016/j.saa.2024.124714 ↗
42. A quantum chemical and molecular dynamics simulation study on photo-oxidative aging of polyethylene: mechanism and differences between crystalline and amorphous phases10.1016/j.polymdegradstab.2023.110536 ↗
43. Enhanced blackness and solubility of polyimide via introducing propeller-shaped chromophore10.1016/j.reactfunctpolym.2023.105703 ↗
44. Theoretical study on the atomic substitution effect on the aromaticity and ESIPT behavior of a novel chalcone-based fluorophore10.1016/j.jphotochem.2024.115872 ↗
45. Computational and experimental study on the mechanism of CO2 production during photo-oxidative degradation of poly(butylene adipate-co-terephthalate): differences between PBA and PBT segments10.1021/acs.macromol.3c01649 ↗
46. TD-DFT assessment of functionals for optical 0–0 transitions in solvated dyes10.1021/ct300326f ↗
47. Study on the effects on compression stress relaxation of HTV silicone rubber-foams
48. The preparation technology of HTV silicone rubber-foams
49. CP2K: an electronic structure and molecular dynamics software package - quickstep: Efficient and accurate electronic structure calculations
50. Breaking the Kasha rule for more efficient photochemistry10.1021/acs.chemrev.7b00110 ↗
51. Multiwfn: a multifunctional wavefunction analyzer10.1002/jcc.22885 ↗
52. An sp-hybridized all-carboatomic ring, cyclo[18]carbon: electronic structure, electronic spectrum, and optical nonlinearity10.1016/j.carbon.2020.05.023 ↗
53. A simple method of identifying π orbitals for non-planar systems and a protocol of studying π electronic structure10.1007/s00214-019-2541-z ↗
54. VMD: visual molecular dynamics10.1016/0263-7855(96)00018-5 ↗
55. Recent progress in irradiation-induced aging of silicones
56. The effects of γ-radiation on the thermal, mechanical, and segmental dynamics of a silica filled, room temperature vulcanized polysiloxane rubber10.1016/S0141-3910(03)00028-4 ↗
57. NMR analysis of γ-radiation induced degradation of halthane-88 polyurethane elastomers10.1016/S0141-3910(03)00190-3 ↗
58. Radiation-induced cross-linking in a silica-filled silicone elastomer as investigated by multiple quantum 1 H NMR10.1021/ma047625s ↗
59. Identification of radiation degradation products of soluble fraction of silicone foams10.1016/j.polymdegradstab.2022.109893 ↗
60. Experimental and theoretical study of gamma radiolysis and dose rate effect of o -cresol formaldehyde epoxy composites10.1021/acsami.1c19609 ↗
61. Coupling effects of gamma irradiation and absorbed moisture on silicone foam10.1016/j.matdes.2020.108998 ↗
62. Phosphorescence and the triplet state10.1021/ja01240a030 ↗
63. Kasha's rule: a reappraisal10.1039/C9CP00739C ↗
64. Multicolor emission of nonaromatic linear polysiloxanes based on local conjugation chains10.1039/D2PY01083F ↗
65. Gamma radiation chemistry of polydimethylsiloxane foam in radiation-thermal environments: experiments and simulations10.1021/acsami.1c10765 ↗