Results 121 to 130 of about 2,942,347 (363)

Biologically inspired graphene-chlorophyll phototransistors with high gain [PDF]

arXiv, 2013
We present prominent photoresponse of bio-inspired graphene-based phototransistors sensitized with chlorophyll molecules. The hybrid graphene-chlorophyll phototransistors exhibit a high gain of 10^6 electrons per photon and a high responsivity of 10^6 A/W, which can be attributed to the integration of high-mobility graphene and the photosensitive ...
arxiv  

On a method of determination of chlorophyll in cells of algae collected on a membrane filter. [Translation from: Trudy Instituta Biologii Vnutrennykh Vodnany 11(14), 198-202, 1966.] [PDF]

, 1966
The original method, proposed by Yentsch (1957), of determination of chlorophyll directly in the cells, attracts attention by its simplicity. In order to measure the content of chlorophyll by this method, a determined volume of suspension of algae is ...
Mokeeva, N.P., Pyrina, I.L.
core  

Two-Dimensional Electronic Spectroscopy of Chlorophyll a: Solvent Dependent Spectral Evolution [PDF]

, 2015
The interaction of the monomeric chlorophyll Q-band electronic transition with solvents of differing physical-chemical properties is investigated through two-dimensional electronic spectroscopy (2DES). Chlorophyll constitutes the key chromophore molecule
Anna J. M., Bagchi B., Buchner R., Camargo F. V. A., Cheng Y. C., Cho M. H., Constantine S., deBoeij W. P., Du J., Faeder S. M. G., Fransted K. A., Fuller F. D., Hamm P., Heisler I. A., Hess S., Ismael A. Heisler, Khalil M., Kwak K., Lazonder K., Martinsson P., Milota F., Park S., Passino S. A., Passino S. A., Read E. L., Renge I., Roberta Moca, Roberts S. T., Romero E., Schlau-Cohen G. S., Sengupta S., Shirota H., Shirota H., Shirota H., Smith N. A., Smith N. A., Stephen R. Meech, Vladkova R., Wells K. L., Wurthner F.   +39 more
core   +1 more source

Photocatalytic and Electrochemical Synthesis of Biofuel via Efficient Valorization of Biomass

Advanced Energy Materials, EarlyView.
This review highlights biomass and biofuel traits, exploring photocatalysis and electrocatalysis mechanisms and their synergistic technologies in biofuel production. It analyzes environmental and economic impacts of green catalytic processes, assesses current challenges, and outlines future research directions, condensing complex topics into a focused ...
Dalin Sun, Yan Zhang, Yuyue Zhou, Yingxia Nie, Lin Ban, Deyu Wu, Song Yang, Heng Zhang, Cheng Li, Kai Zhang   +9 more
wiley   +1 more source

Soft, environmentally degradable microfluidic devices for measurement of sweat rate and total sweat loss and for colorimetric analysis of sweat biomarkers

EcoMat, Volume 5, Issue 1, January 2023., 2023
Soft, skin‐interfaced microfluidic systems exploit biodegradable thermoplastic copolyester elastomers for the microfluidic layers, cellulose films and pressure sensitive adhesives as sealing layers, and carefully selected chemical reagents as colorimetric assays for monitoring sweat loss, sweat rate, pH, and chloride concentration.
Shanliangzi Liu, Da Som Yang, Shaotang Wang, Haiwen Luan, Yurina Sekine, Jeffrey B. Model, Alexander J. Aranyosi, Roozbeh Ghaffari, John A. Rogers   +8 more
wiley   +1 more source

Antioxidant Responses of a Brackish Water Clam to Sediment Composition and Water Quality: a Field Experiment

Journal of Water and Environment Technology, 2021
Field experiments were conducted at brackish-water sites (Lake Hinuma, Hinuma River, and Naka River) to investigate oxidative stress responses of a brackish-water clam, Corbicula japonica, to sediment composition and water quality. To
Preeti Pokhrel, Hiroki Machida, Shumona Akther, Jumpei Suzuki, Masafumi Fujita   +4 more
doaj   +1 more source

Upstream Causes of Downstream Effects [PDF]

, 2017
The United States Environmental Protection Agency considers nutrient pollution in stream ecosystems one of the U.S. most pressing environmental challenges. But limited independent replicates, lack of experimental randomization, and space- and time-varying confounding handicap causal inference on effects of nutrient pollution. In this paper the causal g-
arxiv   +1 more source

The Function of Chlorophyll [PDF]

Nature, 1879
n ...
openaire   +2 more sources

Assessing the Impact of Chemical Algae Management Strategies on Anurans and Aquatic Communities

Environmental Toxicology and Chemistry, Volume 42, Issue 1, Page 213-224, January 2023., 2023
Abstract Pond management with chemical and biological agents that reduce overgrowth of algae is an important means of maintaining water quality in residential ponds, yet the effects on nontarget species are not fully understood. We assessed the impact of Aquashade (a common nontoxic pond dye) and copper sulfate (a toxic algaecide) on American toad ...
Courtney Dvorsky, Kambrie Riddle, Michelle Boone   +2 more
wiley   +1 more source

Development and Application of Organic Sonosensitizers in Cancer Therapy

Aggregate, EarlyView.
This review provides a comprehensive overview of organic sonosensitizers employed in cancer treatment, describing their underlying mechanisms and structure‐activity relationship in terms of sonodynamic therapy. The significance of nanotechnology and combination therapy with other oncological modalities (photothermal therapy, photodynamic therapy, etc.)
Yuhan Ding, Yuchen Yang, Omer Aras, Feifei An, Mengjiao Zhou, Yichao Chai   +5 more
wiley   +1 more source