Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Tim, Kohlmann"'
Publikováno v:
Biomedicines, Vol 10, Iss 7, p 1512 (2022)
We here report a novel strategy to control the bioavailability of the fibrillizing parathyroid hormone (PTH)-derived peptides, where the concentration of the bioactive form is controlled by an reversible, photoswitchable peptide. PTH1–84, a human h
Externí odkaz:
https://doaj.org/article/3c220cfd67fd4799b7fe42b86f401081
Publikováno v:
Results in Chemistry, Vol 3, Iss , Pp 100234- (2021)
Cannabis is one of the oldest cultivated plant, which has been used by humankind for thousands of years due to its biological properties and a wide range of applications. In total, hemp plants contain over 500 different substances while the character
Externí odkaz:
https://doaj.org/article/a5ef139fd658498d99b370a8460db069
Autor:
Tim Kohlmann, Martin Goez
Publikováno v:
Physical Chemistry Chemical Physics. 24:5868-5878
Experiment is better than theory at identifying which neutral radicals NRx of the popular antioxidant quercetin and its derivatives are formed in a nonionic micelle and how they are deprotonated to give radical anions RANxy.
Autor:
Tim Kohlmann, Martin Goez
Publikováno v:
Physical Chemistry Chemical Physics. 23:9709-9714
We have studied the combined static and dynamic quenching of pyrene by methyl viologen in sodium alkyl sulfate micelles varying in volume by a factor of more than 4. Size controls were the temperature T (283 K-333 K) and the alkyl chain length n (9-1
Autor:
Tim Kohlmann, Martin Goez
Publikováno v:
Photochemical & Photobiological Sciences. 19:71-79
Through a formal-kinetic treatment, we rigorously derive the micellar occupations in the presence of fluorophore-quencher ground-state complexes and the resulting expressions for the time-dependent and stationary observables in the case of combined s
Publikováno v:
Results in Chemistry, Vol 3, Iss, Pp 100234-(2021)
Cannabis is one of the oldest cultivated plant, which has been used by humankind for thousands of years due to its biological properties and a wide range of applications. In total, hemp plants contain over 500 different substances while the character
Autor:
Martin Goez, Tim Kohlmann
Publikováno v:
Physical Chemistry Chemical Physics. 21:10075-10085
We have conducted a theoretical and experimental study of Stern-Volmer experiments in micellar systems for the important case that fluorophore and quencher remain confined to their micelle during the luminescence decay (the "immobile probe/immobile q
Autor:
Tim Kohlmann, Martin Goez
Publikováno v:
Chemistry (Weinheim an Der Bergstrasse, Germany)
We have demonstrated the feasibility and ease of producing quercetin radicals by photoionization with a pulsed 355 nm laser. A conversion efficiency into radicals of 0.4 is routinely achieved throughout the pH range investigated (pH 2–9), and the r
Publikováno v:
Photochemical & Photobiological Sciences. 16:1613-1622
The hydrated electron represents a "super-reductant" in water, providing 2.9 eV of reductive power, which suffices to decompose nonactivated aliphatic halides. We show that 3-amino-perylene in SDS micelles, when combined with the bioavailable ascorba
Publikováno v:
Physical Chemistry Chemical Physics. 19:8735-8741
We demonstrate that the 3-aminoperylene radical cation is a near-ideal probe for investigating kinetic and transport processes in SDS micellar systems. Its isolated generation by two-photon ionization at a wavelength where most quenchers are transpar