Solution processable high-performance infrared organic photodetector by iodine doping

RSC Advances ◽  
2016 ◽  
Vol 6 (51) ◽  
pp. 45166-45171 ◽  
Author(s):  
Pin Tian ◽  
Libin Tang ◽  
Jinzhong Xiang ◽  
Zhenhua Sun ◽  
Rongbin Ji ◽  
...  
Keyword(s):  
High Performance ◽  
Fold Increase ◽  
Iodine Doping ◽  
Active Film ◽  
Organic Photodetector ◽  
Solution Processable

A high-performance IR OPV detector has been fabricated, 2.7 wt% iodine doping may increase the absorption by 31.3% for the active film thus result in the ∼11 000-fold increase in responsivity for the detector.

Revealing changes in curcumin bioavailability using vitamin C as an enhancer by HPLC-MS/MS

2019 ◽  
Vol 16 ◽  
Author(s):  
Xufen Dai ◽  
Jiaxue Hao ◽  
Ying Feng ◽  
Jing Wang ◽  
Qiannan Li ◽  
...  
Keyword(s):  
Vitamin C ◽  
High Performance ◽  
Internal Standard ◽  
Fold Increase ◽  
Rat Plasma ◽  
Pharmacokinetic Parameters ◽  
Solution Ph ◽  
Esi Ms ◽  
Simple Strategy ◽  
Isolated Compound

Background: Curcumin (CUR), a natural isolated compound from turmeric, has been the promising star in fighting many diseases but the broad application of curcumin has been limited ascribed to low bioavailability. Objective: The aim of this study is to pursue the enhancement of curcumin bioavailability through co-administration of vitamin C. Methods: Such purpose was achieved through the analysis of curcumin pharmacokinetics by high performance liquid chromatography coupled with electrospray ionization - tandem mass spectrometry (HPLC - ESI - MS/MS). The plasma was separated on a C18 reverse phase column using acetonitrile and ammonium formate solution (pH 6.5; 2.0 mM) at 0.8 mL/min. MS/MS detection was carried out in negative mode using mass patterns of m/z 367.0 > 216.7 for curcumin and m/z 265.2 > 223.9 for internal standard (honokiol). Results: Successful application of the proposed method in the pharmacokinetic study presented clear changes in key pharmacokinetic parameters including the growth of AUC (0-t) up to 2.4 times, 2.2-fold increase of Cmax, 2.2-fold loss of CL, and 1.5-fold diminishment of t1/2. Conclusion: We developed an HPLC-ESI-MS/MS method for determination of curcumin in rat plasma and validated the improvement of bioavailability of curcumin through co-administration of vitamin C. We reasoned these changes to the inhibition of lipid peroxidation induced by the use of vitamin C. Such a simple strategy is possible to become an alternative for enhancing curcumin efficiency in practice.

New hole transport styrene polymers bearing highly π-extended conjugated side-chain moieties for high-performance solution-processable thermally activated delayed fluorescence OLEDs

2021 ◽  
Vol 12 (11) ◽  
pp. 1692-1699
Author(s):  
Ji Hye Lee ◽  
Jinhyo Hwang ◽  
Chai Won Kim ◽  
Amit Kumar Harit ◽  
Han Young Woo ◽  
...  
Keyword(s):  
High Performance ◽  
High Efficiency ◽  
Delayed Fluorescence ◽  
Hole Transport ◽  
Side Chain ◽  
Solution Processed ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Turn On ◽  
Solution Processable

New polystyrene-based polymers with high π-extended hole transport pendants were synthesized to obtain a low turn-on voltage and high efficiency in solution-processed green TADF-OLEDs.

scholarly journals Grill Workers Exposure to Polycyclic Aromatic Hydrocarbons: Levels and Excretion Profiles of the Urinary Biomarkers

2020 ◽  
Vol 18 (1) ◽  
pp. 230
Author(s):  
Marta Oliveira ◽  
Sílvia Capelas ◽  
Cristina Delerue-Matos ◽  
Simone Morais
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
High Performance ◽  
Principal Component ◽  
Fold Increase ◽  
Urinary Biomarkers ◽  
Analysis Model ◽  
Exposed Workers ◽  
Polycyclic Aromatic ◽  
The Impact

Grilling activities release large amounts of hazardous pollutants, but information on restaurant grill workers’ exposure to polycyclic aromatic hydrocarbons (PAHs) is almost inexistent. This study assessed the impact of grilling emissions on total workers’ exposure to PAHs by evaluating the concentrations of six urinary biomarkers of exposure (OHPAHs): naphthalene, acenaphthene, fluorene, phenanthrene, pyrene, and benzo(a)pyrene. Individual levels and excretion profiles of urinary OHPAHs were determined during working and nonworking periods. Urinary OHPAHs were quantified by high-performance liquid-chromatography with fluorescence detection. Levels of total OHPAHs (∑OHPAHs) were significantly increased (about nine times; p ≤ 0.001) during working comparatively with nonworking days. Urinary 1-hydroxynaphthalene + 1-hydroxyacenapthene and 2-hydroxyfluorene presented the highest increments (ca. 23- and 6-fold increase, respectively), followed by 1-hydroxyphenanthrene (ca. 2.3 times) and 1-hydroxypyrene (ca. 1.8 times). Additionally, 1-hydroxypyrene levels were higher than the benchmark, 0.5 µmol/mol creatinine, in 5% of exposed workers. Moreover, 3-hydroxybenzo(a)pyrene, biomarker of exposure to carcinogenic PAHs, was detected in 13% of exposed workers. Individual excretion profiles showed a cumulative increase in ∑OHPAHs during consecutive working days. A principal component analysis model partially discriminated workers’ exposure during working and nonworking periods showing the impact of grilling activities. Urinary OHPAHs were increased in grill workers during working days.

Solution Processable Colloidal Nanoplates as Building Blocks for High-Performance Electronic Thin Films on Flexible Substrates

Nano Letters ◽  
2014 ◽  
Vol 14 (11) ◽  
pp. 6547-6553 ◽  
Author(s):  
Zhaoyang Lin ◽  
Yu Chen ◽  
Anxiang Yin ◽  
Qiyuan He ◽  
Xiaoqing Huang ◽  
...  
Keyword(s):  
Thin Films ◽  
High Performance ◽  
Building Blocks ◽  
Flexible Substrates ◽  
Solution Processable

High performance solution-processable tetrathienoacene (TTAR) based small molecules for organic field effect transistors (OFETs)

2017 ◽  
Vol 53 (43) ◽  
pp. 5898-5901 ◽  
Author(s):  
Sureshraju Vegiraju ◽  
Deng-Yi Huang ◽  
Pragya Priyanka ◽  
Yo-Shan Li ◽  
Xian-Lun Luo ◽  
...  
Keyword(s):  
Small Molecules ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Solution Processable

DDTT-TTARexhibits the highest mobility of 0.81 cm2V−1s−1.

scholarly journals 2,2'-(Arylenedivinylene)bis-8-hydroxyquinolines exhibiting aromatic π-π stacking interactions as solution-processable p-type organic semiconductors for high-performance organic field effect transistors

2021 ◽  
Author(s):  
Suman Yadav ◽  
Shivani Sharma ◽  
Satinder K Sharma ◽  
Chullikkattil P. Pradeep
Keyword(s):  
Organic Semiconductors ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistor ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Organic Thin Film ◽  
Effect Transistor ◽  
Solution Processable ◽  
P Type

Solution-processable organic semiconductors capable of functioning at low operating voltages (~5 V) are in demand for organic field-effect transistor (OFET) applications. Exploration of new classes of compounds as organic thin-film...

High-Performance Solution-Processable N-Shaped Organic Semiconducting Materials with Stabilized Crystal Phase

2014 ◽  
Vol 26 (26) ◽  
pp. 4546-4551 ◽  
Author(s):  
Chikahiko Mitsui ◽  
Toshihiro Okamoto ◽  
Masakazu Yamagishi ◽  
Junto Tsurumi ◽  
Kazumi Yoshimoto ◽  
...  
Keyword(s):  
High Performance ◽  
Crystal Phase ◽  
Semiconducting Materials ◽  
Organic Semiconducting Materials ◽  
Solution Processable

Molecular engineering by σ-Bond spacer enables solution-processable host materials for TADF emitter towards high-performance OLEDs

2020 ◽  
Vol 396 ◽  
pp. 125276
Author(s):  
Nengquan Li ◽  
Danyang Chai ◽  
Zhanxiang Chen ◽  
Changjiang Zhou ◽  
Fan Ni ◽  
...  
Keyword(s):  
High Performance ◽  
Molecular Engineering ◽  
Host Materials ◽  
Solution Processable

scholarly journals Effect of Ultraviolet-C Radiation and Melatonin Stress on Biosynthesis of Antioxidant and Antidiabetic Metabolites Produced in In Vitro Callus Cultures of Lepidium sativum L.

2019 ◽  
Vol 20 (7) ◽  
pp. 1787 ◽  
Author(s):  
Muhammad Asad Ullah ◽  
Duangjai Tungmunnithum ◽  
Laurine Garros ◽  
Samantha Drouet ◽  
Christophe Hano ◽  
...  
Keyword(s):  
Callus Culture ◽  
High Performance ◽  
Biological Activities ◽  
Fold Increase ◽  
Dry Weight ◽  
Callus Cultures ◽  
Lepidium Sativum ◽  
Uv C ◽  
Lepidium Sativum L

Lepidium sativum L. is a rich source of polyphenols that have huge medicinal and pharmaceutical applications. In the current study, an effective abiotic elicitation strategy was designed for enhanced biosynthesis of polyphenols in callus culture of L. sativum. Callus was exposed to UV-C radiations for different time intervals and various concentrations of melatonin. Secondary metabolites were quantified by using high-performance liquid chromatography (HPLC). Results indicated the total secondary metabolite accumulation of nine quantified compounds was almost three fold higher (36.36 mg/g dry weight (DW)) in melatonin (20 μM) treated cultures, whereas, in response to UV-C (60 min), a 2.5 fold increase (32.33 mg/g DW) was recorded compared to control (13.94 mg/g DW). Metabolic profiling revealed the presence of three major phytochemicals, i.e., chlorogenic acid, kaemferol, and quercetin, in callus culture of L. sativum. Furthermore, antioxidant, antidiabetic, and enzymatic activities of callus cultures were significantly enhanced. Maximum antidiabetic activities (α-glucosidase: 57.84%; α-amylase: 62.66%) were recorded in melatonin (20 μM) treated callus cultures. Overall, melatonin proved to be an effect elicitor compared to UV-C and a positive correlation in these biological activities and phytochemical accumulation was observed. The present study provides a better comparison of both elicitors and their role in the initiation of physiological pathways for enhanced metabolites biosynthesis in vitro callus culture of L. sativum.

scholarly journals Regioisomeric control of layered crystallinity in solution-processable organic semiconductors

2020 ◽  
Vol 11 (46) ◽  
pp. 12493-12505
Author(s):  
Satoru Inoue ◽  
Toshiki Higashino ◽  
Shunto Arai ◽  
Reiji Kumai ◽  
Hiroyuki Matsui ◽  
...  
Keyword(s):  
Single Crystal ◽  
Organic Semiconductors ◽  
High Performance ◽  
Crystal Packing ◽  
Positional Isomers ◽  
Solution Processable

An isomorphous bilayer-type layered herringbone crystal packing is reported for a series of four positional isomers of mono-C8-BTNTs, where the single-crystal devices with the isomers exhibit high-performance TFT characteristics.

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