Results 61 to 70 of about 218,902 (300)

Photocatalytic applications with CdS•block copolymer/exfoliated graphene nanoensembles: Hydrogen generation and degradation of Rhodamine B [PDF]

open access: yes, 2014
Amphiphilic block copolymer poly (isoprene-b-acrylic acid) (PI-b-PAA) stabilized exfoliated graphene in water and allowed the immobilization of semiconductor CdS nanoparticles forming CdS•PI-b-PAA/graphene.
Karousis, N.   +3 more
core   +1 more source

3D Soft Hydrogels Induce Human Mesenchymal Stem Cells “Deep” Quiescence

open access: yesAdvanced Healthcare Materials, EarlyView.
Three‐dimensional soft hydrogels mimicking the bone marrow niche induce deep quiescence in human mesenchymal stem cells. Unlike 2D culture, 3D matrices halt proliferation, regulate cell‐cycle and quiescence markers, and downregulate mTORC1 signaling, preserving stem cell phenotype and therapeutic potential ex vivo.
David Boaventura Gomes   +11 more
wiley   +1 more source

CONCEPT OF SHAME AND THE MENTAL HEALTH OF PACIFIC ASIAN AMERICANS [PDF]

open access: yes, 1980
One priority of the Health Task group of the Conference on Pacific and Asian American Families (1978) was the need for research into the psychological and emotional problems of Pacific and Asian American (PAA) groups and their possible remedies ...
Sato, Masayuki
core   +2 more sources

A novel glucose sensor using lutetium phthalocyanine as redox mediator in reduced graphene oxide conducting polymer multifunctional hydrogel [PDF]

open access: yes, 2017
Herein, we report a scalable synthesis of multifunctional conducting polyacrylic acid (PAA) hydrogel (MFH) integrated with reduced grapheme oxide (rGO), vinyl substituted polyaniline (VS-PANI) and lutetium Phthalocyanine (LuPc2) as three dimensional ...
Al-Sagur, H   +4 more
core   +1 more source

Fully Wireless and Flexible Valves for Multiplexed and Prolonged Intravesical Liquid Release

open access: yesAdvanced Healthcare Materials, EarlyView.
A fundamental mechanism for the simultaneous control of multiple magnetic valves is reported in a miniature soft robotic patch for intravesical drug delivery, enabling fully wireless and programmable liquid release. Integrated with a bioadhesive interface and induction‐coupling‐based liquid volume sensing, the soft robotic patch is promising to enable ...
Boyang Xiao   +5 more
wiley   +1 more source

Impactos do Programa de Aquisição de Alimentos (PAA) nas unidades de produção camponesas do assentamento “08 de Junho”, em Laranjeiras do Sul-PR

open access: yesRevista IDEAS, 2017
O Programa de Aquisição de Alimentos (PAA) foi criado pelo Governo Federal brasileiro no ano de 2003 tendo dois objetivos: 1 - a compra governamental de produtos oriundos da agricultura camponesa, pagando por eles preços de mercado e; 2 - doar esses ...
Estevan Coca
doaj  

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

open access: yesAdvanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Positively Charged Polymer‐Brush MOFs for Large‐Area, Pressure‐Resistant Gas Separation Membranes

open access: yesAdvanced Materials, EarlyView.
A universal POPA strategy enables positively charged polymer‐brush MOFs with self‐adaptive interfacial interlocking to resist aggregation under fast processing. This design ensures seamless dispersion within large‐area selective layers, achieving 1 m‐wide roll‐to‐roll fabrication of pressure‐resistant MMCMs with tunable CO2 separation performance ...
Yi Yang   +11 more
wiley   +1 more source

Preparation of Micro-Crystalline Cellulose-Reinforced Polyacrylic Acid Hydrogel and its Application in Paper/Polyacrylic Acid Composites

open access: yesBioResources, 2015
Paper/polyacrylic acid (PAA) composites were prepared using a micro-crystalline cellulose (MCC)-reinforced PAA hydrogel. The MCC-reinforced PAA hydrogel was prepared by in-situ UV light-induced polymerization of acrylic acid in the presence of MCC.
Jianping Ni, Yangbin Wen, Hongbin Liu
doaj   +1 more source

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