Results 41 to 50 of about 2,121 (283)

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

open access: yesAdvanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco   +8 more
wiley   +1 more source

Thermal properties of β nucleated polypropylenes

open access: yes, 2015
Commercially available isotactic polypropylene (iPP) was modified by various amounts of a specific ̌ nucleating agent. Isothermal crystallization and subsequent melting behavior were analyzed using differential scanning calorimetry (DSC).
Stoklasa, Karel   +3 more
core   +1 more source

Tensile and flexural properties of beta-nucleated polypropylenes

open access: yes, 2004
Na základě výsledků našich předchozích studií věnovaných beta-nukleovaným polypropylénům a to zejména jejich rázové houževnatosti, se tato práce zaměřuje na studium ohybových a tahových vlastnosti beta-nukleovaného polypropylénu. Pro účely této práce byl
Šimoník, Josef   +4 more
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Adhesion prevention in reabsorbable polyethylene glycol hydrogel (Coseal®) coated polypropylene mesh in rabbits [PDF]

open access: yesActa Cirúrgica Brasileira, 2013
PURPOSE: To evaluate of postoperative adhesion prevention and inflammatory response to polypropylene mesh, coated with reabsorbable hydrogel of polyethylene glycol (Coseal®) in contact with small bowel in an experimental model in rabbits. METHODS: Twenty
Reynaldo Martins e Quinino   +5 more
doaj   +2 more sources

Vibration welding of alpha and beta isotactic polypropylenes: Mechanical properties and structure

open access: yeseXPRESS Polymer Letters, 2008
Propylene homo- and copolymers (both random and block types) with and without beta nucleation were injection moulded and the related plaques joined by linear vibration welding. The melt flow index (MFI) of the polypropylenes was different.
doaj   +1 more source

Macromolecular non-releasing additives for safer food packaging: application to ethylene/α-olefins and propylene based polymers [PDF]

open access: yesPolyolefins Journal, 2014
Some innovative solutions are proposed to the problem of the unavoidable physical migration of antioxidants from plastic films for packaging, in order to minimize the consequent undesirable effect of food contamination.
Maria Carmela Sacchi   +7 more
doaj   +1 more source

Comparison of Properties with Relevance for the Automotive Sector in Mechanically Recycled and Virgin Polypropylene

open access: yesRecycling, 2021
Polypropylene (PP) has a high recycling potential. However, the properties of mechanically recycled PP (R-PP) have not been fully compared to those of virgin PP (V-PP).
Abdelhak Ladhari   +3 more
doaj   +1 more source

Full Assignment of the 13C NMR Spectra of Regioregular Polypropylenes: Methyl and Methylene Region

open access: yes, 1997
13CNMRspectroscopyisthemainsourceofinformationonthestereochemistryofZiegler- Natta and related transition metal catalyzed propene polymerizations. In simple cases, like those of polypropylenes formed under pure enantiomorphic-site or chain-end control ...
Roberta Cipullo   +9 more
core   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

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