Results 71 to 80 of about 121,227 (315)

Toward Development of Fluorescence-Quenching-Based Biosensors for Drought Stress in Plants

open access: yes, 2019
Abscisic acid (ABA) is a drought stress signaling molecule, and simple methods for detecting its levels could benefit agriculture. Here, we present proof-of-concept detection for ABA in aqueous solutions by the use of a mixture of Cyanine 5.5 (Cy5.5 ...
Siobhan M. Brady (7906010)   +11 more
core   +1 more source

Long‐Range Coordination Environment Modulates Single‐Atom Local States and Systemic Impact on CO2 Photoconversion

open access: yesAdvanced Functional Materials, EarlyView.
Terminal groups on Cu porphyrins modulate the electronic states of single‐atom Cu centers through a long‐range electronic effect, without altering the Cu coordination geometry. Meanwhile, a multi‐descriptor framework is established that incorporates porphyrin regulation, hybrid catalyst properties, and CO2 photoreduction capabilities.
Yi Zhang   +13 more
wiley   +1 more source

Synthesis and photophysical studies on 5-ethoxycarbonyl-4-cinnamyl-6-methyl-3,4-dihydropyrimidine-2(1H)-one in various solvents

open access: yesBulletin of the Chemical Society of Ethiopia, 2009
The 5-ethoxycarbonyl-4-cinnamyl-6-methyl-3,4-dihydropyrimidine-2(1H)-one (DHPM) was synthesized via Biginelli reaction and was characterized by NMR, IR, UV−Visible absorption and fluorescence spectroscopy.
Sheela N. Lad   +4 more
doaj  

Comparative Studies on the Interaction of Cochinchinenin A and Loureirin B with Bovine Serum Albumin

open access: yesJournal of Spectroscopy, 2013
This paper describes the simple, sensitive, and effective spectrophotometric methods based on ultraviolet, fluorescence and circular dichroism for revealing the interactional mechanism of Cochinchinenin A (CA) and Loureirin B (LB) with bovine serum ...
Tianming Yang   +6 more
doaj   +1 more source

Non Photochemical Quenching mechanism in higher plants and in the unicellular alga Chlamydomonas reinhardtii

open access: yes, 2010
Light is a necessary ecological factor for oxygenic photoautotrophic organisms. Plants and algae require light for life but it can sometimes become a limiting factor or even cause stress events.
Guadagno, Carmela Rosaria
core  

Mechanoluminescent HOF Nanotransducers Enabled Sono‐Optogenetics in Parkinsonian Rats

open access: yesAdvanced Functional Materials, EarlyView.
We present a mechanoluminescent system utilizing porous hydrogen‐bonded organic frameworks (HOFs) as a toolkit for focused ultrasound‐triggered, non‐invasive light delivery to the deep brain in rats. This approach enables the specific activation of PV‐GPe neurons in dopamine‐depleted Parkinson's disease rat models, resulting in a comparable alleviation
Wenliang Wang   +18 more
wiley   +1 more source

Comparison of Anionic, Cationic and Nonionic Surfactants as Dispersing Agents for Graphene Based on the Fluorescence of Riboflavin

open access: yesNanomaterials, 2017
Fluorescence quenching is a valuable tool to gain insight about dynamic changes of fluorophores in complex systems. Graphene (G), a single-layered 2D nanomaterial with unique properties, was dispersed in surfactant aqueous solutions of different nature ...
Rocío Mateos   +4 more
doaj   +1 more source

Exploring conformational dynamics of flavoenzymes with flavin fluorescence relaxation spectroscopy

open access: yes, 2002
Research described in this thesis was aimed at gaining more insight into the active-site dynamics of dimeric flavoproteins by means of fluorescence relaxation spectroscopy.
Berg, P.A.W., van den   +1 more
core  

Microfabricated Anisotropic Myobundles for the Scalable Production of Cardiac Tissue Grafts

open access: yesAdvanced Functional Materials, EarlyView.
Controlling the anisotropy of cardiac tissue remains an outstanding challenge in the field of cardiac tissue engineering. Here, we introduce an approach to generate anisotropic cardiac myobundles using cell‐adhesive, synthetic, electrospun fibers and stem cell‐derived cardiac fibroblasts.
Maggie E. Jewett   +15 more
wiley   +1 more source

Preliminary Study of the Interaction between Chlorogenic Acid and Myofibrillar Protein Based on Multispectral Techniques

open access: yesShipin gongye ke-ji
In this study, the binding properties and structural changes associated with the interaction of Coregonus peled myofibrillar protein (MP) and different concentrations (6, 30, 150, and 300 µmol/g) of chlorogenic acid (CA) were investigated.
Jie LI   +5 more
doaj   +1 more source

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