Results 41 to 50 of about 12,701 (145)

Mehrfarbige und lichtintensitätsabgeschwächte Reaktionen von Proteinhydrogelen durch Photoregulierte Vernetzungsdynamik

open access: yesAngewandte Chemie, EarlyView.
In ein vollständig auf Proteinen basierendes Hydrogel wurden zwei orthogonale Photorezeptoren integriert, um die reversible Manipulation der Steifigkeit durch rotes/fernrotes Licht und den irreversiblen Gel‐Sol‐Übergang durch grünes Licht zu ermöglichen.
Saskia Frank, Seraphine V. Wegner
wiley   +1 more source

Role of Phytochromes in Red Light-Regulated Alternative Splicing in Arabidopsis thaliana: Impactful but Not Indispensable

open access: yesCells, 2023
Light is both the main source of energy and a key environmental signal for plants. It regulates not only gene expression but also the tightly related processes of splicing and alternative splicing (AS).
Daniel Alejandro Careno   +5 more
doaj   +1 more source

Multicolor and Attenuated Light Intensity Responses in Protein Hydrogels Arising from Photoregulated Crosslink Dynamics

open access: yesAngewandte Chemie International Edition, EarlyView.
A fully protein‐based hydrogel integrated two orthogonal photoreceptors to enable reversible manipulation of stiffness with red/far‐red light and irreversible gel‐sol transitions with green light. Unexpectedly, high‐intensity red light results in attenuated stiffening and dark‐adaptation, arising from increased crosslinking dynamics in the ...
Saskia Frank, Seraphine V. Wegner
wiley   +1 more source

Phytochrome-controlled level of growth substances in etiolated oat seedlings

open access: yesActa Societatis Botanicorum Poloniae, 2014
Irradiation with red light of coleoptiles and leaves of etiolated oat seedlings, causing photoconversion of phytochrome mainly into Pfr, leads to the release of free auxins and free gibberellins from conjugated forms.
Jan Kopcewicz, Kazimierz Madela
doaj   +1 more source

Single GAF Domain Phytochrome Exhibits a pH‐Dependent Shunt on the Millisecond Timescale

open access: yesChemPhysChem, Volume 26, Issue 6, March 15, 2025.
During their light‐induced photocycle, phytochromes can engage in a thermal reversion back to the initially excited state, denoted as a shunt. This study investigates a pH‐dependent shunt transition in the Pfr state of the All2699g1 phytochrome from Nostoc punctiforme using UV/Vis laser flash photolysis and kinetic modeling. The findings suggest a keto‐
Florian Trunk   +6 more
wiley   +1 more source

QM/MM Benchmarking of Cyanobacteriochrome Slr1393g3 Absorption Spectra

open access: yesMolecules, 2019
Cyanobacteriochromes are compact and spectrally diverse photoreceptor proteins that are promising candidates for biotechnological applications. Computational studies can contribute to an understanding at a molecular level of their wide spectral tuning ...
Christian Wiebeler, Igor Schapiro
doaj   +1 more source

Two distinct light-induced reactions are needed to promote germination in spores of Ceratopteris richardii

open access: yesFrontiers in Plant Science, 2023
Germination of Ceratopteris richardii spores is initiated by light and terminates 3-4 days later with the emergence of a rhizoid. Early studies documented that the photoreceptor for initiating this response is phytochrome.
Ashley E. Cannon   +9 more
doaj   +1 more source

Enhancing Optogenetics‐Based Cancer Therapy Via Nanotechnology

open access: yesExploration, EarlyView.
Nanotechnology enhances optogenetics‐based cancer therapy through improved delivery systems and non‐invasive optical regulation. It further enables precise and programmable control of optogenetic living therapeutics for localized antitumor responses.
Honggang Shen   +8 more
wiley   +1 more source

Improved chilling tolerance in glasshouse-grown potted sweet basil by end-of-production, short-duration supplementary far red light

open access: yesFrontiers in Plant Science, 2023
Sweet basil is a popular culinary herb used in many cuisines around the world and is widely grown commercially for retail as a live potted plant. However, basil is easily damaged by temperatures below 12 °C meaning plants must be transported from the ...
Firdous U. Begum   +5 more
doaj   +1 more source

From regulatory mechanisms to cutting‐edge applications: Research progress of ultrasound, electrical, magnetic, and optical stimulation in neural modulation

open access: yesJournal of Intelligent Medicine, EarlyView.
Abstract In recent years, the clinical treatment and symptom management of neurological disorders have faced significant challenges due to the high complexity of the nervous system's structure and function. Against this backdrop, physical stimulation techniques have emerged as a vital complementary approach to traditional pharmacological treatments and
Wanying Li, Liqun Chen
wiley   +1 more source

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