The effect of size on the optical properties of guanine nanostructures: a femtosecond to nanosecond study
文献情報
Ying Hua, Pascale Changenet-Barret, Thomas Gustavsson, Dimitra Markovitsi
G-quadruplexes, whose building blocks are guanine tetrads, encounter increasing interest with respect to their potential applications in the field of molecular electronics. Here we study how the size of these nanostructures affects their fluorescence. We compare the properties of thymine capped G-quadruplexes, formed by association of four single DNA strands d(TG3T), d(TG4T) and d(TG5T) and stabilized by K+ ions. We show that an increase in the number of tetrads induces a narrowing of the fluorescence spectrum, an increase in the fluorescence quantum yield, a lengthening of fluorescence lifetime and a decrease of the anisotropy detected on the femtosecond time-scale. The in-plane depolarization of the fluorescence, occurring in less than 1 ps, is attributed to population of Franck–Condon exciton states and ultrafast intraband scattering, leading to energy transfer. The persistence of excitons with partial J-aggregate character on the picosecond time-scale increases with the G-quadruplex size, which enhances the stiffness of the system.
関連文献
Orthogonal polymerization of aziridine with cyclic carbonates for constructing amphiphilic block copolymers
Xiao-Hui Guo, Ge-Ge Gu, Tian-Jun Yue, Wei-Min Ren
DOI: 10.1039/D3PY01045G
Rapid investigation of the effect of binary and ternary solvent gradient mixtures on reaction outcomes using a continuous flow system
Dawid Drelinkiewicz, Tom J. A. Corrie, Richard J. Whitby
DOI: 10.1039/D3RE00464C
Multi-tunable thermoresponsive behaviors of poly(amido thioether)s
Lu Lian, Qingqing Wang, Fujin Duan, Youliang Zhao
DOI: 10.1039/D3PY01101A
Side-chain meta[6]cycloparaphenylene-based nanoring-containing polymers
Jiale Zhang, He Cheng, Zihao Meng, Hao Zhang, Zhenyang Luo, Mohd. Muddassir, Xiang Li, Ye Sha
DOI: 10.1039/D3PY01058A
Photo-responsive disassembly of supramolecular polymer bottlebrushes in water
Luke Harvey, Jean-Michel Guigner, Laurent Bouteiller, Erwan Nicol, Olivier Colombani
DOI: 10.1039/D3PY00963G
3D printed filtration and separation devices with integrated membranes and no post-printing assembly
Tushar Garg, Kathryn E. Rankin
DOI: 10.1039/D3RE00245D
Synergetic effects of a poly-tartrazine/CTAB modified carbon paste electrode sensor towards simultaneous and interference-free determination of benzenediol isomers
Amit B. Teradale, Kailash S. Chadchan, Pattan-Siddappa Ganesh, Swastika N. Das
DOI: 10.1039/D3RE00318C
Responsive CO2 capture: predictive multi-objective optimisation for managing intermittent flue gas and renewable energy supply
Oliver J. Fisher, Lei Xing, Xingjian Tian, Xin Yee Tai, Jin Xuan
DOI: 10.1039/D3RE00544E
A low-volume flow electrochemical microreactor for rapid and automated process optimization
Hans-Michael Eggenweiler, Thomas Fuchss, Alena Sommer
DOI: 10.1039/D3RE00586K
Energetics of acid catalyzed biomass reactions: how and why does the solvent model matter?
José Carlos Velasco Calderón, Samir H. Mushrif
DOI: 10.1039/D3RE00340J
こちらもおすすめ
3-イチチルビフェニルはどのように合成されますか?
3-イチチルビフェニルは、ビフェニルとイチプロピオニトリルを回収率約90%で反応させて合成されます。触媒は通常、亜リチウムホウ素を用います。
8-溴-5-三氟甲基喹啉はどのように合成されますか?
8-溴-5-三氟甲基喹啉は、5-トリフルオロメチル-2-メチル-1,3-ベンゼンジオールをブロモエタノールと反応させて生成します。この反応は塩基性条件下で行われ...
ジメチル4-(4,4,5,5-テトラメチル-1,3,2-ドioxaborolan-2-基)-2,6-ピリジンジカルボイル酸フェニルアミニドの代替品はありますか?
ジメチル4-(4,4,5,5-テトラメチル-1,3,2-ドioxaborolan-2-基)-2,6-ピリジンジカルボイル酸フェニルアミニドの代替品としては、4-...
N-(3,5-ヘキサクロロ-4-ピリドインイル)-8-メチオキシ-5-キノリンカーボン酸の市場動向や研究トレンドはどのようなものでしょうか?
N-(3,5-ヘキサクロロ-4-ピリドインイル)-8-メチオキシ-5-キノリンカーボン酸の市場動向は、主に産業用途での需要により影響を受けます。研究トレンドとし...
イソステアロイルグリセリルは安全ですか?
イソステアロイルグリセリルは一般的に安全性が高いとされていますが、過度な使用や個人差により皮�owsん炎などの反応が起こる可能性があります。使用前に医師に相談す...
1-(二苯甲基)-3,3-二氟-氮杂环丁烷の市場動向や研究トレンドはどうですか?
1-(二苯甲基)-3,3-二氟-氮杂环丁烷の市場動向は、医薬品や合成化学の研究分野で注目を集めています。新興研究は、該当化合物の合成改良と生体内での作用メカニズ...
3-チオフェンスチオールの物理化学的性質は何ですか?
3-チオフェンスチオールのCAS番号は7774-73-4です。結晶性の白色粉末で、分子量は122.17です。この化合物は水に微溶解し、エタノールやジクロロメタン...
2-Methyl-2-propanyl (2S)-2-(aminomethyl)-1-piperidinecarboxylateは安全ですか?
2-Methyl-2-propanyl (2S)-2-(aminomethyl)-1-piperidinecarboxylateは一定の安全性基準を満たしていま...
CAS番号1316822-90-8の化合物は安全ですか?
CAS番号1316822-90-8の化合物は安全性に関しては評価が不足していますが、一般的には生物学的に活性な物質であり、取り扱いには適切な安全防護措置が必要で...
Tert-butyl 2-(2-羟基乙基)哌嗪-1-羧酸はどのように保存すればよいですか?
Tert-butyl 2-(2-羟基乙基)哌嗪-1-羧酸は、冷暗所で保存し、直射日光から遠ざけてください。容器は密閉し、高湿度や高温を避けて保管してください。
掲載誌
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










![N-{15-[(2,5-Dioxo-1-pyrrolidinyl)oxy]-15-oxo-3,6,9,12-tetraoxapentadec-1-yl}-2-(2-propyn-1-yloxy)acetamide structure N-{15-[(2,5-Dioxo-1-pyrrolidinyl)oxy]-15-oxo-3,6,9,12-tetraoxapentadec-1-yl}-2-(2-propyn-1-yloxy)acetamide structure](https://static.chemtradehub.com/structs/210/2101206-92-0-2eb5.webp)
![1-oxaspiro[4.4]nonan-6-one structure 1-oxaspiro[4.4]nonan-6-one structure](https://static.chemtradehub.com/structs/134/134179-01-4-e051.webp)

![5'-Fluoro-[2,3'-biindolinylidene]-2',3-dione structure 5'-Fluoro-[2,3'-biindolinylidene]-2',3-dione structure](https://static.chemtradehub.com/structs/251/251903-00-1-9cb1.webp)
