Intrinsic bacterial biodegradation of petroleum contamination demonstrated in situ using natural abundance, molecular-level 14C analysis

Solvents can dramatically affect molecular crystals. Obtaining favorable properties for these crystals requires rational design based on molecular level understanding of the solid-solution interface. Here we show how atomic force...

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An In-Situ Reaction Route to Molecular Level Dispersed Bisimide and ZnO Nanorod Hybrids with Efficient Photo-Induced Charge Transfer

Nanoscale Research Letters ◽

10.1186/s11671-021-03504-3 ◽

2021 ◽

Vol 16 (1) ◽

Author(s):

Chunzheng Lv ◽

Lirong He ◽

Jiahong Tang ◽

Feng Yang ◽

Chuhong Zhang

Keyword(s):

Charge Transfer ◽

Electric Field ◽

Self Assembly ◽

Molecular Level ◽

Surface Photovoltage ◽

Zno Nanorod ◽

In Situ Reaction ◽

Perylene Bisimide ◽

Induced Charge

AbstractAs an important photoconductive hybrid material, perylene/ZnO has attracted tremendous attention for photovoltaic-related applications, but generally faces a great challenge to design molecular level dispersed perylenes/ZnO nanohybrids due to easy phase separation between perylenes and ZnO nanocrystals. In this work, we reported an in-situ reaction method to prepare molecular level dispersed H-aggregates of perylene bisimide/ZnO nanorod hybrids. Surface photovoltage and electric field-induced surface photovoltage spectrum show that the photovoltage intensities of nanorod hybrids increased dramatically for 100 times compared with that of pristine perylene bisimide. The enhancement of photovoltage intensities resulting from two aspects: (1) the photo-generated electrons transfer from perylene bisimide to ZnO nanorod due to the electric field formed on the interface of perylene bisimide/ZnO; (2) the H-aggregates of perylene bisimide in ZnO nanorod composites, which is beneficial for photo-generated charge separation and transportation. The introduction of ordered self-assembly thiol-functionalized perylene-3,4,9,10-tetracarboxylic diimide (T-PTCDI)/ ZnO nanorod composites induces a significant improvement in incident photo-to-electron conversion efficiency. This work provides a novel mentality to boost photo-induced charge transfer efficiency, which brings new inspiration for the preparation of the highly efficient solar cell.

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In-situ molecular-level hybridization enabling high-sulfonation-degree sulfonated poly(ether ether ketone) membrane with excellent anti-swelling ability and proton conduction

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2021.07.018 ◽

2021 ◽

Author(s):

Zhuofan Zhou ◽

Yan Wang ◽

Jianlong Lin ◽

Yafang Zhang ◽

Lingbo Qu ◽

...

Keyword(s):

Molecular Level ◽

Proton Conduction ◽

Ether Ether Ketone ◽

Sulfonation Degree ◽

Poly Ether Ether Ketone ◽

Ether Ketone ◽

Sulfonated Poly

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Compartmentalization of membrane trafficking, glucose transport, glycolysis, actin, tubulin and the proteasome in the cytoplasmic droplet/Hermes body of epididymal sperm

Open Biology ◽

10.1098/rsob.150080 ◽

2015 ◽

Vol 5 (8) ◽

pp. 150080 ◽

Cited By ~ 11

Author(s):

Catherine E. Au ◽

Louis Hermo ◽

Elliot Byrne ◽

Jeffrey Smirle ◽

Ali Fazel ◽

...

Keyword(s):

Membrane Trafficking ◽

Glucose Transporter ◽

Molecular Level ◽

Mammalian Species ◽

Cytoskeletal Proteins ◽

Epididymal Sperm ◽

Quantitative Electron Microscopy ◽

Cytoplasmic Droplet ◽

Germ Cell Differentiation

Discovered in 1909 by Retzius and described mainly by morphology, the cytoplasmic droplet of sperm (renamed here the Hermes body) is conserved among all mammalian species but largely undefined at the molecular level. Tandem mass spectrometry of the isolated Hermes body from rat epididymal sperm characterized 1511 proteins, 43 of which were localized to the structure in situ by light microscopy and two by quantitative electron microscopy localization. Glucose transporter 3 (GLUT-3) glycolytic enzymes, selected membrane traffic and cytoskeletal proteins were highly abundant and concentrated in the Hermes body. By electron microscope gold antibody labelling, the Golgi trafficking protein TMED7/p27 localized to unstacked flattened cisternae of the Hermes body, as did GLUT-3, the most abundant protein. Its biogenesis was deduced through the mapping of protein expression for all 43 proteins during male germ cell differentiation in the testis. It is at the terminal step 19 of spermiogenesis that the 43 characteristic proteins accumulated in the nascent Hermes body.

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In Situ Real-Time Observation of Polymer Folded-Chain Crystallization by Atomic Force Microscopy at the Molecular Level

Macromolecules ◽

10.1021/acs.macromol.8b01428 ◽

2018 ◽

Vol 51 (19) ◽

pp. 7629-7636 ◽

Cited By ~ 14

Author(s):

Yuki Ono ◽

Jiro Kumaki

Keyword(s):

Atomic Force Microscopy ◽

Real Time ◽

Molecular Level ◽

Force Microscopy ◽

Atomic Force ◽

Time Observation ◽

Real Time Observation

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Wingless induces transdetermination in developing Drosophila imaginal discs

Development ◽

10.1242/dev.121.5.1263 ◽

1995 ◽

Vol 121 (5) ◽

pp. 1263-1272 ◽

Cited By ~ 8

Author(s):

L. Maves ◽

G. Schubiger

Keyword(s):

Molecular Level ◽

Ectopic Expression ◽

Imaginal Discs ◽

Developmental Studies ◽

New Approach ◽

Cell Determination ◽

Disc Cells ◽

The Subject ◽

Insight Into

Drosophila imaginal discs, the precursors of the adult fly appendages, have been the subject of intensive developmental studies, particularly on cell determination. Cultured disc fragments are recognized not only for the ability to maintain their determined state through extra cell divisions but also for the ability to transdetermine, or switch to the determined state of a different disc. An understanding of transdetermination at a molecular level will provide further insight into the requirements for maintaining cell determination. We find that ectopic expression of the Drosophila gene wingless induces transdetermination of foreleg imaginal disc cells to wing cells. This transdetermination occurs in foreleg discs of developing larvae without disc fragmentation. The in situ-transdetermining cells localize to the dorsal region of the foreleg disc. This wingless-induced transdetermination event is remarkably similar to the leg-to-wing switch that occurs after leg disc culture. Thus we have identified a new approach to a molecular dissection of transdetermination.

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