Results 91 to 100 of about 14,231 (229)

Construction optimization and functional applications of fluorescent nanodiamonds

open access: yesResponsive Materials, EarlyView.
This review summarizes synthesis, surface modification and optical properties of fluorescent nanodiamonds. Their advances in quantum sensing, single‐photon emission and biomedicine are discussed, and existing challenges and future directions are presented.
Yunpeng Yang   +11 more
wiley   +1 more source

P,N,S‐Co‐Doped Red‐Emissive Carbon Dots for Microenvironment‐Sensitive Organelle Imaging and Monitoring Cellular Redox Processes

open access: yesSmall, EarlyView.
Phosphorus‐, nitrogen‐, and sulfur‐co‐doped red‐emissive carbon dots (PNS‐R‐CDs) enable ON–OFF–ON ClO−/GSH redox sensing and microenvironment‐responsive subnuclear imaging, providing a versatile fluorescent nanoplatform for monitoring localized oxidative stress and intracellular heterogeneity.
Amanda Ana Pinheiro   +5 more
wiley   +1 more source

ACS Sens [PDF]

open access: yes
Nanotechnology-enabled sensors (or nanosensors) will play an important role in enabling the progression toward ubiquitous information systems as the Internet of Things (IoT) emerges.

core  

Surface‐Functionalized Poly(2‐Oxazoline)‐Based Grids Produced by Two‐Photon Polymerization as 3D‐Structured Hydrogels Promoting Cell Adhesion

open access: yesSmall, EarlyView.
Sidechain‐functionalized poly(2‐oxazoline) cross‐linkers were utilized to print grids with varying mesh sizes by two‐photon polymerization (2PP grids). The amino‐functionalized hydrogels were subsequently used to covalently couple the RGD‐containing peptide sequence GCWRGDSP (RGD) to the amino groups in the side chains. In cell adhesion tests with L929
Tim Hoffmann   +11 more
wiley   +1 more source

Two-in-One Hybrid Sensor Based on PV4D4/AgAu/TiO2 Structure for Carbon Dioxide and Hydrogen Gas Detection in Biomedical and Industrial Fields

open access: yesBiosensors
A novel two-in-one sensor for both carbon dioxide and hydrogen detection has been obtained based on a hybrid heterostructure. It consists of a 30 nm thick TiO2 nanocrystalline film grown by atomic layer deposition (ALD), thermally annealed at 610 °C, and
Mihai Brinza   +9 more
doaj   +1 more source

Crystallinity Effects on Near‐Infrared Photoresponse in Y6‐Based Organic Phototransistors

open access: yesSmall, EarlyView.
Solution‐processed Y6 thin films are investigated as active layers of organic field‐effect transistors and as near‐infrared photodetectors. Enhanced crystallinity in Y6 films induced by thermal annealing leads to improved charge transport and pronounced photoresponsivity.
Lluís Casabona‐Cendra   +8 more
wiley   +1 more source

Cooperative Regulation of Defect‐Mediated Molecular Recognition With Single‐Walled Carbon Nanotubes

open access: yesSmall, EarlyView.
Defect‐mediated sensing in SWCNTs arises from the cooperative interplay of defect characteristics, density, heterogeneity, analyte properties, corona composition, and environment. Understanding these interconnected variables enables tunable fluorescence modulation, selective molecular recognition, ratiometric sensing, and sensitive detection in complex
Srestha Basu, Gili Bisker
wiley   +1 more source

Fiber-optic nanosensors

open access: yes, 2016
Peer ...
Corres, Jesus M.   +5 more
core   +1 more source

Engineering Carbon Nanotube Quantum Well Defects With Recognition Tripeptides for Optical Detection of Extracellular Vesicles in Plasma

open access: yesSmall, EarlyView.
A three‐residue peptide bioconjugated onto a carbon nanotube quantum defect turns the near‐infrared emission of quantum defects into a reporter of integrins on intact extracellular vesicles, directly in human plasma. The sensor reveals that healthy fibroblast vesicles carry as much RGD‐binding integrin as cancer‐derived ones, an adhesion‐associated ...
In‐Jun Hwang   +9 more
wiley   +1 more source

Development of fluorescent nanosensors for real-time biological assays [PDF]

open access: yes, 2016
The current advances of nanotechnology in medicine and biology open new horizons towards the development of novel tools (nanosensors) for the detection of several biological compounds, disease biomarkers and cellular molecules.
Elsutohy, Mohamed
core  

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