Results 51 to 60 of about 53,726 (303)

Aptamers and Cancer

open access: yesAsian Pacific Journal of Cancer Biology, 2016
Oligonucleotides Aptamers are single strands of DNA and RNA with the length of 20-100 nucleotides or peptides and unique three dimensional structure that is affected by nucleotide sequence. The structure exclusively influences aptamers’ bindings with its target molecule.
Yazdanpanahi, Nasrin   +2 more
openaire   +4 more sources

Cerebrospinal Fluid Over Plasma Links Analytes to Cognitive Decline in Older Adults at Risk for Alzheimer's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To identify inflammatory analytes in cerebrospinal fluid (CSF) and plasma associated with cognitive decline in cognitively normal (CN) older adults at risk for Alzheimer's disease (AD). Methods In a longitudinal study of 118 CN older adults (65–80 years, 54% APOE ε4, 26% preclinical AD), 1331 CSF and 1501 plasma analytes were ...
Jagan A. Pillai   +13 more
wiley   +1 more source

Biomimetic Core–Shell Liposome Nanoparticles Deplete Lipoproteins and Enhance the Purity of Extracellular Vesicles from Human Blood

open access: yesAdvanced Functional Materials, EarlyView.
Lipoprotein‐mimicking nanoparticles (SL‐NPs), comprising Fe3O4@SiO2 cores coated with liposomal bilayers, selectively capture lipoproteins through protein corona formation. The resulting SL‐NP‐lipoprotein complexes can be removed by low‐speed centrifugation, thereby enhancing the purity of small extracellular vesicles (sEVs) isolated from human serum ...
Man‐Di Wang   +7 more
wiley   +1 more source

DNA module platform for developing colorimetric aptamer sensors

open access: yesBioTechniques, 2016
Here we present a DNA module platform for developing simple aptamer sensors based on a microarray format combined with secondary structure prediction in silico.
Yasuyuki Tomita   +3 more
doaj   +1 more source

Detection of okadaic acid using a liquid crystal-based aptasensor by exploiting the signal enhancement effect of gold nanoparticles

open access: yesBiosensors and Bioelectronics: X, 2022
In this work, a liquid crystal (LC)-based aptasensor for okadaic acid (OA) detection was developed with a novel aptamer mechanism for enhancing the optical signals of LCs.
Zeinab Rouhbakhsh   +3 more
doaj   +1 more source

Aptamer Rivalry [PDF]

open access: yesChemistry & Biology, 2002
A controllable, intracellular RNA aptamer could be an invaluable therapeutic or discovery reagent. A report published in this journal shows that aptamer behavior can be regulated by a small molecule, paving the way for the development of more sophisticated ligand-regulated aptamers.
openaire   +2 more sources

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

open access: yesAdvanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies   +2 more
wiley   +1 more source

Critical Design Factors for Electrochemical Aptasensors Based on Target-Induced Conformational Changes: The Case of Small-Molecule Targets

open access: yesBiosensors, 2022
Nucleic-acid aptamers consisting in single-stranded DNA oligonucleotides emerged as very promising biorecognition elements for electrochemical biosensors applied in various fields such as medicine, environmental, and food safety.
Andra Mihaela Onaş   +3 more
doaj   +1 more source

From Cell‐Derived Vesicles to Hybrid Nanovectors: Biological Membranes as Functional Blueprints for Gene Delivery

open access: yesAdvanced Healthcare Materials, EarlyView.
Biologically derived and hybrid nonviral nanovectors are examined as distinct but convergent design approaches. Integrating synthetic components with biologically functionalized membranes allows efficient interactions with complex cellular environments.
Clara Baldari   +10 more
wiley   +1 more source

Modular Assembly of Cell-targeting Devices Based on an Uncommon G-quadruplex Aptamer

open access: yesMolecular Therapy: Nucleic Acids, 2015
Aptamers are valuable tools that provide great potential to develop cost-effective diagnostics and therapies in the biomedical field. Here, we report a novel DNA aptamer that folds into an unconventional G-quadruplex structure able to recognize and enter
Felipe Opazo   +6 more
doaj   +1 more source

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