Results 101 to 110 of about 61,707 (300)

Tissue‐Stimulator Platform for Electrically Stimulating Pancreatic β‐Cells for Long‐Term Functional Regulation

open access: yesAdvanced Functional Materials, EarlyView.
We present a tissue‐stimulator platform for seamless electrode integration with pancreatic tissue, applying uniform electrical stimulation through optimized design with biohybrid 3D printing. Advantageous effects of electrical stimulation on β‐cell function were observed, including enhanced calcium signaling, islet morphology, and maturation.
Jihwan Kim   +7 more
wiley   +1 more source

Cellular Internalization of Human Calcitonin Derived Peptides in MDCK Monolayers: A Comparative Study with Tat(47-57) and Penetratin(43-58) [PDF]

open access: yes, 2018
Purpose. The objective of this study was to evaluate key motif requirements of human calcitonin (hCT)-derived peptides for the permeation through the plasma membrane of MDCK monolayers, as epithelial model. Methods.
Beck-Sickinger, Annette   +5 more
core  

Recent advances in the synthesis and application of fluorescent α-amino acids [PDF]

open access: yes, 2016
Fluorescence spectroscopy has become a powerful technique for probing a range of complex biological processes including enzyme mechanisms and protein-protein interactions. While the application of this technique uses a number of strategies, many of these
Harkiss, Alexander, Sutherland, Andrew
core   +1 more source

Cell-Penetrating Peptides: Mechanisms and Applications

open access: yesCurrent Pharmaceutical Design, 2005
A major obstacle in the development of new therapeutic agents is the low bioavailability of hydrophilic substances. Drugs that bind to intracellular targets must penetrate the lipid bilayer surrounding the cell in order to exert their effect. A relatively new research area that addresses this problem by introducing novel transport peptides that ...
El-Andaloussi, S, Holm, T, Langel, U
openaire   +2 more sources

Multiplex Modular Nanorobotic Systems with Catalytic Activity under Magnetic Navigation

open access: yesAdvanced Functional Materials, EarlyView.
We present modular nanorobots composed of a magnetic propulsion module and different extension modules carrying functional activities, assembled via DNA base pairing. The system integrates propulsion, optical tracking, enzymatic catalysis, and cell docking in a programmable manner.
Voichita Mihali   +7 more
wiley   +1 more source

Effect of Synthetic Cell-Penetrating Peptides on TrkA Activity in PC12 Cells

open access: yesJournal of Pharmacological Sciences, 2008
As TrkA, a high-affinity receptor of nerve growth factor (NGF), is a potential target for relieving uncontrolled inflammatory pain, an effective inhibitor of TrkA has been required for pain management.
Munetaka Hirose   +14 more
doaj   +1 more source

Analysis of iodinated quorum sensing peptides by LC-UV/ESI ion trap mass spectrometry [PDF]

open access: yes, 2018
Five different quorum sensing peptides (QSP) were iodinated using different iodination techniques. These iodinated peptides were analyzed using a C-18 reversed phase HPLC system, applying a linear gradient of water and acetonitrile containing 0.1% (m/v ...
De Spiegeleer, Bart   +5 more
core   +2 more sources

Structural and Chemical Engineering of Sub‐Nanochannel Membranes Toward Ion Selectivity

open access: yesAdvanced Functional Materials, EarlyView.
This review summarizes recent advances in structural and chemical engineering of sub‐nanochannels for ion selectivity. We first introduce fundamental ion transport mechanisms within sub‐nanochannels, followed by strategies to tune pore size, geometry, and surface functionalities, categorized into charge‐based, ion‐recognition, hydrophilic bonding, and ...
Yuyu Su   +5 more
wiley   +1 more source

Cellular uptake and anti-tumor activity of gemcitabine conjugated with new amphiphilic cell penetrating peptides [PDF]

open access: yes
Gemcitabine (Gem) is used as a single agent or in combination with other anticancer agents to treat many types of solid tumors. However, it has many limitations such as a short plasma half-life, dose-limiting toxicities and drug resistance.
Akbari, Jafar   +6 more
core   +1 more source

Genomic evidence for genes encoding leucine-rich repeat receptors linked to resistance against the eukaryotic extra- and intracellular Brassica napus pathogens Leptosphaeria maculans and Plasmodiophora brassicae [PDF]

open access: yes, 2018
© 2018 Stotz et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Fitt, Bruce   +7 more
core   +3 more sources

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