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Molecular adsorption study of nicotine and caffeine on the single-walled carbon nanotube from first principles [PDF]

open access: yesSolid State Communications, v.167, pp.27 - 30 (2013), 2013
Using first-principles calculations, we investigate the electronic structures and binding properties of nicotine and caffeine adsorbed on single-walled carbon nanotubes to determine whether CNTs are appropriate for filtering or sensing nicotine and ...
Cano-Márquez   +24 more
core   +2 more sources

Caffeine for asthma [PDF]

open access: yesCochrane Database of Systematic Reviews, 2010
Background Caffeine has a variety of pharmacological effects; it is a weak bronchodilator and it also reduces respiratory muscle fatigue. It is chemically related to the drug theophylline which is used to treat asthma.
Becker   +19 more
core   +7 more sources

US parent perspectives on teen caffeine intake: An opportunity for health care provider guidance [PDF]

open access: yesPreventive Medicine Reports
Purpose: To explore parental knowledge and behaviors regarding their adolescent's intake of caffeine to provide context as to what guidance from health care providers could be helpful for families. Methods: Data were collected in February 2024 as part of
Sarah J. Clark   +4 more
doaj   +2 more sources

Caffeine Consumption & Perception of Its Effects Amongst University Students

open access: yesProceedings, 2021
Introduction: A variety of research studies have shown that caffeine usage is highly prevalent among university students and many of them have different perception of its effect on their mental and physical health.
Roop Zahra   +5 more
doaj   +1 more source

Yap1-mediated Flr1 expression reveals crosstalk between oxidative stress signaling and caffeine resistance in Saccharomyces cerevisiae

open access: yesFrontiers in Microbiology, 2022
Caffeine, a methylxanthine derivative, affects various physiological conditions such as cell growth, proliferation, and energy metabolism. A genome-wide screening for genes required for caffeine resistance in Schizosaccharomyces pombe revealed several ...
Ji Eun Choi   +5 more
doaj   +1 more source

Time to Recover From Daily Caffeine Intake

open access: yesFrontiers in Nutrition, 2022
Caffeine elicits widespread effects in the central nervous system and is the most frequently consumed psychostimulant worldwide. First evidence indicates that, during daily intake, the elimination of caffeine may slow down, and the primary metabolite ...
Yu-Shiuan Lin   +19 more
doaj   +1 more source

Salivary caffeine in Parkinson’s disease

open access: yesScientific Reports, 2021
We aimed to investigate salivary caffeine content, caffeine absorption and metabolism in Parkinson’s disease (PD) and verify whether salivary caffeine can be used as a biomarker of PD. We enrolled 98 PD patients and 92 healthy subjects.
Giorgio Leodori   +10 more
doaj   +1 more source

Caffeine as a Gelator [PDF]

open access: yesGels, 2016
Caffeine (a stimulant) and ethanol (a depressant) may have opposite effects in our body, but under in vitro conditions they can “gel” together. Caffeine, being one of the widely used stimulants, continued to surprise the scientific community with its unprecedented biological, medicinal and physicochemical properties.
Kolehmainen, Erkki, Nonappa, Nonappa
openaire   +8 more sources

Synthesis of nitrogen doped single wall carbon nanotubes with caffeine [PDF]

open access: yesphysica status solidi (b) 2017, 2021
Nitrogen doped single wall carbon nanotubes have many functional benefits. Doping opens the possibility to control the electronic energy levels, surface energy, surface reactivity and charge carrier density. The additional electron in the outer shell changes the electronic properties of the nanotubes when introduced into the carbon lattice.
arxiv   +1 more source

Comparing Salivary Caffeine Kinetics of 13C and 12C Caffeine for Gastric Emptying of 50 mL Water

open access: yesPharmaceutics, 2023
Gastric water emptying as a critical parameter for oral drug absorption can be investigated by several imaging techniques or by the interpretation of pharmacokinetics of appropriate substances. Recently introduced salivary caffeine kinetics is a valuable
Michael Grimm   +7 more
doaj   +1 more source

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