Results 101 to 110 of about 24,744 (302)

Isolation, characterization and therapeutic potential of a novel furanoid diterpene lactone from Hedychium spicatum rhizomes: Insights into antioxidant, anxiolytic, and circadian rhythm modulating properties

Phytomedicine Plus
Background: Hedychium spicatum rhizomes is widely used in ayurvedic medicine and traditional medicine systems around the Himalayas. Purpose: Standardization of Hedychium spicatum rhizome SCFE extract by Identification, Isolation, characterization, and ...
Alok Pratap Singh, Rajeev Kumar Sharma, Ashok Behera, Jay Ballabh Kandpal, Havagiray Chitme, Pankaj Pant   +5 more
doaj   +1 more source

Magnetically Recoverable Catalysts for Cellulose Conversion into Glycols

Chemical Engineering Transactions, 2016
In this paper Ru-containing magnetic catalyst on the basis of Fe3O4-SiO2 nanoparticles was suggested for the conversion of cellulose into ethylene glycol (EG) and propylene glycol (PG).
O.V. Manaenkov, V.G. Matveeva, P.V. Sinitzyna, E.A. Ratkevich, O.V. Kislitza, V.Y. Doluda, E.M. Sulman, A.I. Sidorov, J.J. Mann, Y. Losovyj, L.M. Bronstein   +10 more
doaj   +1 more source

Electrostatic Superlattices Beyond 1:1 Stoichiometry

Advanced Functional Materials, EarlyView.
Polymer‐mediated charge regulation drives two hierarchical routes to higher‐stoichiometry nanoparticle superlattices. Tuning the polymer's molecular weight promotes progressive interstitial filling, transforming ZnS into the fully occupied CaF2${\rm CaF}_2$ lattice. Exchanging polymer assignment between large and small nanoparticles instead breaks CsCl
Binay P. Nayak, Prapti Kakkar, Wesley P. Korba, Honghu Zhang, Wenjie Wang, Surya K. Mallapragada, Alex Travesset, David Vaknin   +7 more
wiley   +1 more source

Sulfur‐Free Ultrahigh‐Refractive‐Index Polymers Enabled by Densely Packed Oxygen‐Bridged Dibenzofuran‐Cardo Architectures

Advanced Functional Materials, EarlyView.
A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy, Gyeongsoo Kim, Sooyoung Lee, Mohamed R. Elmasry, Youn‐Chul Kim, Changsik Song   +5 more
wiley   +1 more source

FTIR spectroscopic study of conformational equilibria of substituted ethane in polyethylene glycols [PDF]

, 2018
© Published under licence by IOP Publishing Ltd. In this paper, we considered the conformational behaviour of 1,2-dichloroethane in polyethylene glycols with molecular weight equaled to 200, 400 and 600.
Naumova S., Kamalova D.
core  

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

Advanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen, Patryk Wąsik, Juan Fernando Cucuyame Morales, Marie Kate Palau, Adrian Francisco Duran Ornelas, Phani Saketh Dasika, Jin Hee Kim, Radhika Laxminarayana, Eric Hintsala, Greta Chang, Junzhi Liao, Lizhi Sun, Nathan Lord, Atsushi Arakaki, Paul Bardunias, Pablo Zavattieri, David Kisailus   +16 more
wiley   +1 more source

Confinement‐Engineered Thermally Programmed Ion‐Gating Separator for Decoupling Thermal–Electrochemical Feedback in High‐Energy Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
A new phase‐change material encapsulated membrane offers more thermal resilience stability and safety than the conventional separators for batteries. ABSTRACT Thermal runaway in lithium‐ion batteries arises from the intrinsic coupling between heat generation and ion transport, yet conventional shutdown separators primarily rely on passive pore collapse
Sumedha Rajpoot, Wei‐Nien Su, Sheng‐Chiang Yang, Yu Chun Huang, Wahyu Fiqih Virdiansyah, Ashok Ranjan, Han‐Hsuan Hsieh, Chia‐Lung Hsieh, Yu‐Wei Li, Yosef Nikodimos, Zabish Bilew Muche, Yu Jen Liang, Chia‐Chi Wang, Chih‐Ching Liu, Gao‐Jhih Liang, Chun‐Chen Yang, She‐Huang Wu, Bing Joe Hwang   +17 more
wiley   +1 more source

Roll‐to‐Roll Processable EC/TC Hybrid Smart Windows Driven by a Bidirectional Dual‐Chromic Polymer Electrolyte

Advanced Functional Materials, EarlyView.
We present a scalable EC/TC hybrid smart window using a DCPE that enables tunable solar modulation (ΔTsol:15–43%), fast electrochromic switching (<90 s), and strong thermal blocking (10–14°C reduction). HPMC improves thermal stability, while an optimized ISL enhances EC performance.
Soyeon Kim, Euiseok Jeong, Muhammad Jahandar, Huynh Tan Thanh Kha, Dong Chan Lim   +4 more
wiley   +1 more source

CHEMICAL RECYCLING OF BIO-BASED POLYURETHANE FOAMS: EVALUATING BIO-BASED GLYCOLS IN COMPARISON TO PETROLEUM-BASED GLYCOLS [PDF]

The paradigm shift towards bio-based polyurethane foams (bio-PUF) has significantly increased post-consumer waste. To address this issue, this research represents a novel approach to enhance sustainable development in the recycling industry by replacing ...
Thorbole, Anirudh, Mr.
core   +1 more source

Analytical tools for monitoring glycol degradation

Results in Engineering
This paper aims to develop new methods for monitoring oxidative and thermal glycol degradation through solvent analysis. Methods for quantifying TEG, and for quantifying some degradation products (small glycols and acids), were successfully developed ...
Karen K. Høisæter, Vanja Buvik, Solrun J. Vevelstad, Hanna K. Knuutila   +3 more
doaj   +1 more source