Results 61 to 70 of about 59,306 (263)

A Surface‐engineered Microfluidic Device for Antibody‐Mediated Negative Selection of High‐Quality Sperm for Assisted Reproduction

open access: yesAdvanced Functional Materials, EarlyView.
This study reports a microfluidic device with a functionalized surface utilizing a polyoxazoline coating and covalently immobilized gold nanoparticles and anti‐phosphatidylserine antibody. The device efficiently eliminates pre‐apoptotic and apoptotic spermatozoa and yields sperm with substantially improved quality and low DNA damage, offering a simple ...
Soraya Rasi Ghaemi   +5 more
wiley   +1 more source

Tuning the Selectivity of the CO2 Reduction Reaction by Means of Synergistic Interactions in the Cu, Ag, Ce System

open access: yesAdvanced Functional Materials, EarlyView.
Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang   +9 more
wiley   +1 more source

A role of cellular glutathione in the differential effects of iron oxide nanoparticles on antigen-specific T cell cytokine expression

open access: yesInternational Journal of Nanomedicine, 2011
Chien-Chang Shen1, Hong-Jen Liang2, Chia-Chi Wang3, Mei-Hsiu Liao4, Tong-Rong Jan1 1Department and Graduate Institute of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 2Innovation and Incubation Center, Yuanpei ...
Shen CC   +4 more
doaj  

Green synthesis of iron oxide nanoparticles using Platanus orientalis leaf extract for antifungal activity

open access: yesGreen Processing and Synthesis, 2019
In this report, aqueous phase green synthesis of iron oxide nanoparticle utilizing Platanus orientalis is elucidated for the first time. The phytoconstituents of the P.
Devi Henam Sylvia   +4 more
doaj   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

open access: yesAdvanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum   +5 more
wiley   +1 more source

Nanoparticles in biomedical applications

open access: yesAdvances in Physics: X, 2017
Nanoparticles are defined as solid colloidal particles ranging in size from 10 to 1000 nm. Nanoparticles offer many benefits to larger particles such as increased surface-to-volume ratio and increased magnetic properties.
Karrina McNamara, Syed A. M. Tofail
doaj   +1 more source

Magnetite (Fe3 O4 ) nanoparticles: Are they really safe?

open access: yesLa Granja: Revista de Ciencias de la Vida, 2015
Iron oxide nanoparticles and in particular Fe3O4 Nanoparticles are new materials used in biotechnology and nanotechnology, Food and drugs administration has approved several coated and bare Iron oxide nanoparticless and they are actually used in ...
Lenin Ramírez-Cando
doaj   +1 more source

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

open access: yesAdvanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta   +8 more
wiley   +1 more source

A single exposure to iron oxide nanoparticles attenuates antigen-specific antibody production and T-cell reactivity in ovalbumin-sensitized BALB/c mice

open access: yesInternational Journal of Nanomedicine, 2011
Chien-Chang Shen1, Chia-Chi Wang1, Mei-Hsiu Liao2, Tong-Rong Jan11Department and Graduate Institute of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan; 2Division of Isotope Application, Institute of Energy ...
Shen CC, Wang CC, Liao MH, Jan TR
doaj  

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