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1. An engineered azurin with a lanthanide binding site capable of copper sensing

Author:
Jiang, Yujia; Su, Binbin; Chen, Honghui; Zhang, Tongtong; Liu, Haiping; Yu, Yang
Source:
Biochemical and biophysical research communications 2021 v.561 pp. 40-44
ISSN:
0006-291X
Subject:
electron transfer,   etc   ; luminescence; research;     Show all 3 Subjects
Abstract:
... Proteins with hetero-bimetallic metal centers can catalyze important reactions and are challenging to design. Azurin is a mononuclear copper center that has been extensively studied for electron transfer. Here we inserted the lanthanide binding tag (LBT), which binds lanthanide with sub μM affinity, into the copper binding loop of azurin, while keeping the type 1 copper center unperturbed. The res ...
DOI:
10.1016/j.bbrc.2021.05.013

2. Efficient Gradient Potential Top Electron Transport Structures Achieved by Combining an Oxide Family for Inverted Perovskite Solar Cells with High Efficiency and Stability

Author:
Yang, Boping; Ma, Ruiman; Wang, Zishuai; Ouyang, Dan; Huang, Zhanfeng; Lu, Jinlian; Duan, Xiaohui; Yue, Lu; Xu, Ning; Choy, Wallace C. H.
Source:
ACS applied materials & interfaces 2021 v.13 no.23 pp. 27179-27187
ISSN:
1944-8252
Subject:
electron transfer,   etc   ; fullerene; temperature;     Show all 3 Subjects
Abstract:
... Although inverted (p–i–n) structure perovskite solar cells (PSCs) have achieved high efficiency by commonly using fullerenes or their derivatives as electron transport layers (ETLs), the device stability and cost of fullerene materials are still of great concern. Herein, we demonstrate inorganic top ETLs simply composed from a family of metal oxides including In₂O₃ and its derivative of Sn:In₂O₃ w ...
DOI:
10.1021/acsami.1c05284

3. Acyl fluorides as direct precursors to fluoride ketyl radicals: reductive deuteration using SmI₂ and D₂O

Author:
Li, Hengzhao; Peng, Mengqi; Lai, Zemin; Ning, Lei; Chen, Xingyue; Zhang, Xiaoxu; Wang, Pengjie; Szostak, Roman; Szostak, Michal; An, Jie
Source:
Chemical communications 2021 v.57 no.42 pp. 5195-5198
ISSN:
1364-548X
Subject:
electron transfer,   etc   ; chemoselectivity; deuterium;     Show all 3 Subjects
Abstract:
... A highly chemoselective reductive deuteration of acyl fluorides to provide α,α-dideuterio alcohols with exquisite levels of deuterium incorporation was developed using SmI₂ and D₂O as the deuterium source. This method introduces acyl fluorides as attractive radical precursors for the generation of reactive acyl-type fluoride ketyls that should find widespread application in many synthetic strategi ...
DOI:
10.1039/d1cc01381e

4. Synthesis of redox-active fluorinated 5-hydroxytryptophans as molecular reporters for biological electron transfer

Author:
Ohler, Amanda; Long, Hanna; Ohgo, Kei; Tyson, Kristin; Murray, David; Davis, Amanda; Whittington, Chris; Hvastkovs, Eli G.; Duffy, Liam; Haddy, Alice; Sargent, Andrew L.; Allen, William E.; Offenbacher, Adam R.
Source:
Chemical communications 2021 v.57 no.25 pp. 3107-3110
ISSN:
1364-548X
Subject:
electron transfer,   etc   ; peptides; spectroscopy;     Show all 3 Subjects
Abstract:
... Fluorinated 5-hydroxytryptophans (Fₙ-5HOWs) were synthesized in gram scale quantities and incorporated into a β-hairpin peptide and the protein azurin. The redox-active Fₙ-5HOWs exhibit unique radical spectroscopic signatures that expand the function of 5HOW as probes for biological electron transfer. ...
DOI:
10.1039/d1cc00187f

5. Modulation of destructive quantum interference by bridge groups in truxene-based single-molecule junctions

Author:
Wang, Lin; Zhao, Zhihao; Shinde, Digambar B.; Lai, Zhiping; Wang, Dong
Source:
Chemical communications 2021 v.57 no.5 pp. 667-670
ISSN:
1364-548X
Subject:
electron transfer,   etc   ; energy; nitrogen;     Show all 3 Subjects
Abstract:
... Electron transport properties of polycyclic truxene derivatives have been investigated by the single molecule conductance measurement technique and theoretical study. Molecules with nitrogen and carbonyl substituents at the bridge sites exhibit higher single-molecule conductances by almost one order of magnitude compared with non-substituted analogues. It can be ascribed that the anti-resonance fe ...
DOI:
10.1039/d0cc07438a

6. Charge-transfer induced multifunctional BCP:Ag complexes for semi-transparent perovskite solar cells with a record fill factor of 80.1%

Author:
Ying, Zhiqin; Yang, Xi; Zheng, Jingming; Zhu, Yudong; Xiu, Jingwei; Chen, Wei; Shou, Chunhui; Sheng, Jiang; Zeng, Yuheng; Yan, Baojie; Pan, Hui; Ye, Jichun; He, Zhubing
Source:
Journal of materials chemistry A 2021 v.9 no.20 pp. 12009-12018
ISSN:
2050-7496
Subject:
electron transfer,   etc   ; electrodes; solar cells;     Show all 3 Subjects
Abstract:
... For semi-transparent perovskite solar cells (PSCs), the bombardment during the deposition of a transparent conductive oxide would inevitably damage the underlying soft materials, thereby inducing a high density of defects and creating an unfavorable band mismatch at the interface. Although interfacial buffer layers can be adopted to alleviate this bombardment damage, the device performance is stil ...
DOI:
10.1039/d1ta01180d

7. Interplay of four auxiliary factors is required for the assembly of photosystem I reaction center subcomplex

Author:
Nellaepalli, Sreedhar; Kim, Rick G.; Grossman, Arthur R.; Takahashi, Yuichiro
Source:
Theplant journal 2021 v.106 no.4 pp. 1075-1086
ISSN:
0960-7412
Subject:
electron transfer,   etc   ; affinity chromatography; thylakoids;     Show all 3 Subjects
Abstract:
... The photosystem I (PSI) complex consisting of reaction center (RC) subunits, several peripheral subunits and many co‐factors, is present in the thylakoid membranes of chloroplasts and cyanobacteria. The assembly of RC subunits (PsaA/B) that bind electron transfer co‐factors and antenna pigments is an intricate process, and is mediated by several auxiliary factors such as Ycf3, Y3IP1/CGL59, Ycf4 an ...
DOI:
10.1111/tpj.15220

8. Disclosing the emissive surface traps in green-emitting carbon nanodots

Author:
Sciortino, Alice; Ferrante, Francesco; Mauro, Nicolò; Buscarino, Gianpiero; Sciortino, Luisa; Giammona, Gaetano; Cannas, Marco; Duca, Dario; Messina, Fabrizio
Source:
Carbon 2021 v.173 pp. 454-461
ISSN:
0008-6223
Subject:
electron transfer,   etc   ; fluorescence; nitrogen; photoluminescence;     Show all 4 Subjects
Abstract:
... The bright photoluminescence of surface-functionalized carbon nanoparticles, known as carbon nanodots (CDs), has been studied for more than a decade because of its fundamental photo-physical interest and strong technological potential. However, the essential nature of the electronic states involved in their typical light emission remains very elusive. Here, we provide conclusive evidence that surf ...
DOI:
10.1016/j.carbon.2020.11.030

9. Sandwich shelled TiO₂@Co₃O₄@Co₃O₄/C hollow spheres as anode materials for lithium ion batteries

Author:
Liu, Zheng; Yu, Mengkang; Wang, Xiaodan; Lai, Fengyu; Wang, Chao; Yu, Nan; Sun, Hongxia; Geng, Baoyou
Source:
Chemical communications 2021 v.57 no.14 pp. 1786-1789
ISSN:
1364-548X
Subject:
electron transfer,   etc   ; anodes; lithium; nanosheets;     Show all 4 Subjects
Abstract:
... A sandwich shelled hollow TiO₂@Co₃O₄@Co₃O₄/C composite is synthesized by consecutive coating of Co₃O₄ nanosheets and TiO₂ particles on Co₃O₄/C hollow spheres. The composite delivers an excellent lithium storage performance, maintaining 1081.78 mA h g⁻¹ after 100 cycles at 0.2 A g⁻¹ and 772.23 mA h g⁻¹ after 300 cycles at 1 A g⁻¹, due to its superior structure combining the advantages of each compo ...
DOI:
10.1039/d0cc07306g

10. Electron–Nuclear Dynamics Accompanying Proton-Coupled Electron Transfer

Author:
Yoneda, Yusuke; Mora, S. Jimena; Shee, James; Wadsworth, Brian L.; Arsenault, Eric A.; Hait, Diptarka; Kodis, Gerdenis; Gust, Devens; Moore, Gary F.; Moore, Ana L.; Head-Gordon, Martin; Moore, Thomas A.; Fleming, Graham R.
Source:
Journal of the American Chemical Society 2021 v.143 no.8 pp. 3104-3112
ISSN:
1520-5126
Subject:
electron transfer,   etc   ; biomimetics; evolution; photosynthesis;     Show all 4 Subjects
Abstract:
... Although photoinduced proton-coupled electron transfer (PCET) plays an essential role in photosynthesis, a full understanding of the mechanism is still lacking due to the complex nonequilibrium dynamics arising from the strongly coupled electronic and nuclear degrees of freedom. Here we report the photoinduced PCET dynamics of a biomimetic model system investigated by means of transient IR and two ...
DOI:
10.1021/jacs.0c10626

11. Rapid Estimation of Binding Constants for Cucurbit[8]uril Ternary Complexes Using Electrochemistry

Author:
Liu, Jia; Lambert, Hugues; Zhang, Yong-Wei; Lee, Tung-Chun
Source:
Analytical chemistry 2021 v.93 no.9 pp. 4223-4230
ISSN:
1520-6882
Subject:
electron transfer,   etc   ; calorimetry; electrochemistry; titration;     Show all 4 Subjects
Abstract:
... Supramolecular complexes are of fundamental interests in biomedicines and adaptive materials, and thus facile methods to determine their binding affinity show usefulness in the design of novel drugs and materials. Herein, we report a novel approach to estimate the binding constants KG₂ of cucurbit[8]uril-methyl viologen-based ternary complexes (CB8-MV²⁺-G2) using electrochemistry, achieving high p ...
DOI:
10.1021/acs.analchem.0c04887

12. Dissymmetric interface design of SnO2/TiO2 side-by-side bi-component nanofibers as photoanodes for dye sensitized solar cells: Facilitated electron transport and enhanced carrier separation

Author:
Wei, Kun; Gu, Xiu Yun; Chen, En Zi; Wang, You Qing; Dai, Zhe; Zhu, Zi Ran; Kang, Shi Qiang; Wang, Ao Chen; Gao, Xiu Ping; Sun, Geng Zhi; Pan, Xiao Jun; Zhou, Jin Yuan; Xie, Er Qing
Source:
Journal of colloid and interface science 2021 v.583 pp. 24-32
ISSN:
0021-9797
Subject:
electron transfer,   etc   ; dyes; nanofibers; synergism;     Show all 4 Subjects
Abstract:
... SnO₂/TiO₂ type II heterojunctions are often introduced to enhance the separation efficiency of photogenerated carriers in photoelectrochemical electrodes, while most of these heterojunctions are of core–shell structure, which often limits the synergistic effect from the two components. In this work, dissymmetric SnO₂/TiO₂ side-by-side bi-component nanofibers (SBNFs) with tunable composition ratios ...
DOI:
10.1016/j.jcis.2020.09.017

13. Dichlorine radicals (Cl2•—) promote the photodegradation of propranolol in estuarine and coastal waters

Author:
Wang, Jieqiong; Wang, Kai; Guo, Yuchen; Ye, Zimi; Guo, Zhongyu; Lei, Yu; Yang, Xin; Zhang, Lilan; Niu, Junfeng
Source:
Journal of hazardous materials 2021 v.414 pp. 125536
ISSN:
0304-3894
Subject:
electron transfer,   etc   ; estuaries; oxidation; photolysis; propranolol; seawater;     Show all 6 Subjects
Abstract:
... Propranolol (PRO) is frequently detected in estuarine and coastal waters, which has adverse effects on estuarine and coastal ecosystems. In this study, the effects of halide ions and DOM from estuarine and coastal waters on the photochemical transformation of PRO were investigated. The results demonstrated that the presence of Br⁻ alone exhibited slight effect on photochemical transformation of PR ...
DOI:
10.1016/j.jhazmat.2021.125536

14. Rationally embedded zinc oxide nanospheres serving as electron transport channels in bismuth vanadate/zinc oxide heterostructures for improved photoelectrochemical efficiency

Author:
Li, Jinglin; Jin, Bingjun; Jiao, Zhengbo
Source:
Journal of colloid and interface science 2021 v.592 pp. 127-134
ISSN:
0021-9797
Subject:
electron transfer,   etc   ; bismuth; nanocrystals; nanospheres; zinc oxide;     Show all 5 Subjects
Abstract:
... In this work, we demonstrate the fabrication of Mo, W co-doped BiVO₄/ZnO nanosphere (Mo, W: BVO/ZnO NS) heterostructures using a simple solution dry-out method that uniformly embeds ZnO NSs in Mo, W: BVO nanocrystals. Photoelectrochemical (PEC) examination confirmed that Mo, W: BVO/ZnO NSs exhibit higher PEC performance than pure Mo, W: BVO, and this improved performance of Mo, W: BVO/ZnO NSs also ...
DOI:
10.1016/j.jcis.2021.02.025

15. Boosting the performance of MA-free inverted perovskite solar cells via multifunctional ion liquid

Author:
Li, Dongyang; Huang, Yulan; Wang, Guoliang; Lian, Qing; Shi, Run; Zhang, Luozheng; Wang, Xingfu; Gao, Fangliang; Kong, Weiguang; Xu, Baomin; Cheng, Chun; Li, Shuti
Source:
Journal of materials chemistry A 2021 v.9 no.21 pp. 12746-12754
ISSN:
2050-7496
Subject:
electron transfer,   etc   ; ambient temperature; cations; liquids; pyridines;     Show all 5 Subjects
Abstract:
... Perovskite solar cells (PSCs) with state-of-the-art efficiencies contain thermally unstable methylammonium (MA). Avoiding MA molecules usually leads to a severe decrease in the cell efficiency. In this work, a novel ion liquid (simplified as NDAPBF₄) possessing a pyridine cation and BF₄⁻ anion were introduced to improve the performance of MA-free PSCs. The ion liquid NDAPBF₄ can optimize the grain ...
DOI:
10.1039/d1ta01883c

16. Merged interface construction toward ultra-low Vₒc loss in inverted two-dimensional Dion–Jacobson perovskite solar cells with efficiency over 18%

Author:
Wu, Haotian; Lian, Xiaomei; Li, Jun; Zhang, Yingzhu; Zhou, Guanqing; Wen, Xinbo; Xie, Zengqi; Zhu, Haiming; Wu, Gang; Chen, Hongzheng
Source:
Journal of materials chemistry A 2021 v.9 no.21 pp. 12566-12573
ISSN:
2050-7496
Subject:
electron transfer,   etc   ; air; energy; humidity; thermal stability;     Show all 5 Subjects
Abstract:
... An optimized interface between a perovskite and a charge transport layer with full contact and low defect density favors an improvement in performance of perovskite solar cells (PVSCs). However, few works have been reported on constructing an interface for efficient charge transport and low energy loss in 2D Dion–Jacobson (DJ) PVSCs with an inverted structure. Herein, a deposition process combinin ...
DOI:
10.1039/d1ta02015c

17. ZnO nanowire embedded TiO₂ film as an electrode for perovskite CsPbI₂Br solar cells

Author:
Zheng, Liqiu; Page, Gabrielle; Li, Zhongrui
Source:
RSC advances 2021 v.11 no.32 pp. 19705-19711
ISSN:
2046-2069
Subject:
electron transfer,   etc   ; comparative study; electrodes; nanowires; synergism;     Show all 5 Subjects
Abstract:
... A comparative study was conducted to look into the impact of various electron transporting films on the performance of perovskite CsPbI₂Br solar cells. The solar cells with ZnO nanowires embedded TiO₂ as an electrode outperformed those with pure TiO₂ or pure ZnO. The enhanced performance is ascribed to the synergetic effect of both TiO₂/ZnO constituent properties. In particular, an appropriate amo ...
DOI:
10.1039/d1ra01563j

18. Direct interspecies electron transfer mechanism in enhanced methanogenesis: A mini-review

Author:
Wang, Wei; Lee, Duu-Jong
Source:
Bioresource technology 2021 v.330 pp. 124980
ISSN:
0960-8524
Subject:
electron transfer,   etc   ; anaerobic digestion; carbon; methane production;     Show all 4 Subjects
Abstract:
... The role of direct interspecies electron transfer (DIET) on enhancement of methanogenesis has been studied. This mini-review updated the current researches on the potential role of DIET on enhanced performance for anaerobic digestion of organic substrates with effective strategies implemented. Since most experimental observations correlated with the DIET mechanism are yet to be consolidated, this ...
DOI:
10.1016/j.biortech.2021.124980

19. 3D Taraxacum-like porous Pd nanocages with Bi doping: High-performance non-Pt electrocatalysts for ethanol oxidation reaction

Author:
Li, Xingchi; You, Huaming; Wang, Cheng; Liu, Dongmei; Yu, Rui; Guo, Siyu; Wang, Yuan; Du, Yukou
Source:
Journal of colloid and interface science 2021 v.591 pp. 203-210
ISSN:
0021-9797
Subject:
electron transfer,   etc   ; ethanol; geometry; liquids; nanosheets; oxidation;     Show all 6 Subjects
Abstract:
... Modifying the electronic structure and optimizing the geometric structure can expeditiously tune the electrocatalytic properties of catalysts, resulting in considerably enhanced electrocatalytic performance towards electrocatalytic oxidation of liquid fuels. We herein report a simple synthetic strategy to prepare Bi-doped 3D taraxacum-like Pd nanocages (NCs) composed of porous nanosheets, which po ...
DOI:
10.1016/j.jcis.2021.02.018

20. In situ synthesis of g-C3N4 by glass-assisted annealing route to boost the efficiency of perovskite solar cells

Author:
Xie, Fengyan; Dong, Guofa; Wu, Kechen; Li, Yafeng; Wei, Mingdeng; Du, Shaowu
Source:
Journal of colloid and interface science 2021 v.591 pp. 326-333
ISSN:
0021-9797
Subject:
electron transfer,   etc   ; carbon nitride; energy; graphene;     Show all 4 Subjects
Abstract:
... TiO₂-based electron transport layers (ETLs) show tremendous advantages in constructing efficient perovskite solar cells (PSCs), but the power conversion efficiency (PCE) needs further improvements. Thus, in this study, graphitic carbon nitride (g-C₃N₄), a typical two-dimensional material, was synthesized in-situ and introduced into TiO₂-based ETLs as an additive via a facile glass-assisted anneali ...
DOI:
10.1016/j.jcis.2021.02.028