Picosecond Studies of Intramolecular Double Proton Transfer by Excite- and Probe-Technique
نویسندگان
چکیده
منابع مشابه
Intramolecular proton transfer in channelrhodopsins.
Channelrhodopsins serve as photoreceptors that control the motility behavior of green flagellate algae and act as light-gated ion channels when heterologously expressed in animal cells. Here, we report direct measurements of proton transfer from the retinylidene Schiff base in several channelrhodopsin variants expressed in HEK293 cells. A fast outward-directed current precedes the passive chann...
متن کاملPicosecond Laser Studies of Intramolecular Excited-State Charge-Transfer Dynamics and Small-Chain Relaxation
Intramolecular charge transfer has been observed for the molecule anthracene-(CH,),-N,N-dimethylaniline [9[3-[4-(dimethylamino)phenyl]propyl]anthracene] in nonpolar solvents of varying viscosities. The technique employed was picosecond time-resolved fluorescence utilizing a Nd3+:phosphate glass laser and streak camera. Measurements of the fluorescence decay of the excited-state acceptor (anthra...
متن کاملpragmatic transfer in compliment responses and chastisements by iranian learners of english
فرهنگ های گوناگون دریافت ها و تعبیر های مختلفی از تناسب و ادب دارند. بنابراین، ارتباط میان فرهنگی خطرات ذاتی خطای ارتباطی را نشان می دهد. این پژوهش به منظور تعیین وقوع انتقال منظورشناختی زبان در زبان بینابینی زبان آموزان ایرانی، اختلاف منظورشناختی زبان را بین فارسی و انگلیسی در کنش های کلامی پاسخ تحسین و انتقاد بررسی می کند.داده ها از میان 33 آمریکایی انگلیسی زبان، 85 زبان آموز ایرانی در سطوح م...
15 صفحه اولExcited-state intramolecular proton transfer as a fluorescence probe for protein binding-site static polarity.
A fluorescence probe is introduced for protein conformation and binding-site monitoring as the proton-transfer (PT) tautomer fluorescence by using 4-hydroxy-5-azaphenanthrene (HAP) as a prototype. A typical grossly-wavelength-shifted PT fluorescence for HAP is observed in the 600-nm spectral region for this UV-absorbing molecule (absorption onset, 400 nm), for which case PT occurs even in proti...
متن کاملRelay proton transfer triggered twisted intramolecular charge transfer.
The mechanism for the dual emission of 2-(4'-N,N-dimethylaminophenyl)imidazo[4,5-c]pyridine (DMAPIP-c) in protic solvents was investigated by synthesizing and studying its analogues. Theoretical calculations were carried out to corroborate the experimental findings. The deprotonation studies suggest that the enhancement in the TICT emission of anionic forms of DMAPIP-c is limited to a protic en...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Laser Chemistry
سال: 1988
ISSN: 0278-6273,1476-3516
DOI: 10.1155/lc.8.377