Results 81 to 90 of about 18,467 (263)

Enhancement of Proton Transport in an Oriented Polypeptide Thin Film [PDF]

open access: yes, 2013
Proton transport properties of a partially protonated poly(aspartic acid)/sodium polyaspartate (P-Asp) were investigated. A remarkable enhancement of proton conductivity has been achieved in the thin film. Proton conductivity of 60-nm-thick thin film
Matsui, Jun   +15 more
core   +1 more source

Presentation on DFT 9H-Fluorene Super Acids

open access: yes, 2023
The density functional theory (DFT) calculations have been performed on a new set of organic Brønsted acids based on 9H-fluorene scaffold. The optimal structures and acidity of the compounds have been calculated by using DFT/B3LYP/631 + + G(d,p ...
Baharak Farzin1 · Hamid Saeidian2  · Zohreh Mirjafary1 · Javad Mokhtari Aliabad1 (17278159)
core   +1 more source

Lysosome‐Targeted Squaramide Anion Transporters

open access: yesChemistry – A European Journal, EarlyView.
Lysosome‐targeted squaramide anion transporters elicit different biological effects depending on the targeting group employed. ABSTRACT Targeting anion transporters to specific organelles has previously been shown to be an effective strategy to enhance their cytotoxicities against cancerous cell lines.
Elba Feo   +5 more
wiley   +1 more source

Machine Learning–Enhanced Fluorescence Cryptography with NADH‐Responsive Polymer Dots

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a smart anticounterfeiting system using semiconducting polymer dots (Pdots) that exhibit tunable fluorescence responses to NADH. By integrating these dynamic optical signals with machine learning–based decoding, the work establishes a secure and intelligent encryption platform, showing a novel strategy that links chemical sensing ...
Zhengkun Zhan   +7 more
wiley   +1 more source

Folic Acid With Fluorene: A Complexation Study by UV and FTIR Spectroscopies

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2017
The complexation between folic acid and a typical polyaromatic hydrocarbon, fluorene, was investigated using FTIR and UV spectra. Appearance of a new IR band at 2401cm−1 demonstrates that NH2–C=N moiety on pterin ring in folic acid is protonated ...
K. K. Hammud   +4 more
doaj  

Preparation of Cyano-Substituted Tetraphenylethylene Derivatives and Their Applications in Solution-Processable OLEDs

open access: yesMolecules, 2018
Creation of organic luminescent materials with high solid-state efficiency is of vital importance for their applications in optoelectronic fields. Here, a series of AIE luminogens (AIE gens), (Z)-2,3-bis(4-(9,9-bis(6-(9H-carbazol-9-yl)hexyl)-9H-fluoren-2-
Xiaoyi Sun   +8 more
doaj   +1 more source

A-pi-A, D-pi-D and D-pi-A blue emitting fluorophores based on dispiro[fluorene-9,6 '-indeno[1,2-b]fluorene-12 ',9 ''-fluorene]

open access: yes, 2021
International audienceWe report a series of blue fluorophores based on the dispiro[fluorene-9,6 '-indeno[1,2-b]fluorene-12 ',9 ''-fluorene] (DSF-IF) scaffold.
Rault-Berthelot, Joëlle   +3 more
core   +1 more source

Investigation and Evaluation of Wax Deposition Treatment Methods in Large Natural Gas Plants

open access: yesEnergy Science &Engineering, EarlyView.
Problem: Wax blockage (Biphenyl, PAHs) in low‐temperature units crippled plant capacity. Solution: A novel Circulating Light Hydrocarbon Injection technology. Mechanism: Light hydrocarbons disrupt wax crystals via “like dissolves like” and are continuously recovered. Outcome: 1. Throughput dropped from 10 MMscmd to 3 MMscmd 2.
Jiahao Wu   +6 more
wiley   +1 more source

Fluorescent Nanosensor for Indole-3-Propionic Acid Detection in Gut Health Monitoring. [PDF]

open access: yesAdv Healthc Mater
This work introduces a fluorescent nanosensor system with two optical modalities for detection of indole‐3‐propionic acid (IPA) gut metabolite: (1) blue‐emitting cationic conjugated polyelectrolyte (CP3) and (2) near‐infrared (NIR)‐emitting CP3‐wrapped single‐walled carbon nanotube (SWNT).
Ang MC   +15 more
europepmc   +2 more sources

2-Methylenebutyrolactones. II. Fluorene and diaryl derivatives

open access: yes, 1972
Ethyl sodiomalonate with fluorene-9-spiro-2'-oxiran gave two carboxybutyro-lactones, (2a) and (3a). Fluorene-9-spiro-4'-(2'-methylenebutyrolactone) (3c) and 2-methylene-4,4-diphenylbutyrolactone (6c) have been prepared by the action of diethylamine and ...
LK Dalton, BV Kolczynski, BC Elmes
core   +1 more source

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