76 research outputs found
MOESM3 of Real-time in vivo imaging of subpopulations of circulating tumor cells using antibody conjugated quantum dots
Additional file 3: Movie M2a. A CD24+ cell (green) is moving across the blood vessel wall
MOESM7 of Real-time in vivo imaging of subpopulations of circulating tumor cells using antibody conjugated quantum dots
Additional file 7: Movie M5. 3D microenvironment around the solid tumor. Green: blood vessels, red: cancer cells, white: ECM
Additional file 1: of Detection of residual rifampicin in urine via fluorescence quenching of gold nanoclusters on paper
Supplementary Data
MOESM6 of Real-time in vivo imaging of subpopulations of circulating tumor cells using antibody conjugated quantum dots
Additional file 6: Movie M4. Movement of palettes (red) and CTCs (green) in the blood vessels. For visualization, the trajectories of CTCs are highlighted by green traces in the movie
MOESM5 of Real-time in vivo imaging of subpopulations of circulating tumor cells using antibody conjugated quantum dots
Additional file 5: Movie M3. Movement of CD133+ CTC in the blood vessels. The red signals are from the anti-CD133 conjugated quantum, dots and the green signals are from the CTCs expressing green fluorescent proteins
MOESM2 of Real-time in vivo imaging of subpopulations of circulating tumor cells using antibody conjugated quantum dots
Additional file 2: Movie M1. CD24+ cells (green) are moving in a blood vessel
Actively Controlled Self-Assembly of Colloidal Crystals in Microfluidic Networks by Electrocapillary Forces
We report a simple approach to actively control the formation of the self-assembled colloidal crystals in the microfluidic networks using a combination of electrocapillary forces and evaporation-induced self-assembly. Using this scheme, we can not only selectively fabricate the colloidal crystals in the desired channels, but we can also build colloidal crystals with different optical properties in different channels or in the same channel
Unraveling the Adhesion Behavior of Different Cell Lines on Biomimetic PEDOT Interfaces: The Role of Surface Morphology and Antifouling Properties
The
poly(3,4-ethylenedioxythiophene) (PEDOT) interface, renowned
for its biocompatibility and intrinsic conductivity, holds substantial
potential in biosensing and cellular modulation. Through strategic
functionalization, PEDOT derivatives can be adaptable for multifaceted
applications. Notably, integrating phosphorylcholine (PC) groups into
PEDOT, mimicking the hydrophilic headgroups from cell membranes, confers
exceptional antifouling properties on the coating. This study systematically
investigated biomolecule interactions with distinct forms of PEDOT,
incorporating variations in surface modifications and structure. Zwitterionic
PEDOT–PC was electropolymerized on smooth and nanostructured
surfaces using various feeding ratios in electrolytes to finely control
the antifouling properties of the interface. Precise electropolymerization
conditions governed the attainment of smooth and nanostructured filamentous
surfaces. The study employed a quartz crystal microbalance with dissipation
(QCM-D) to assess protein binding behavior. Bovine serum albumin (BSA),
lysozyme (LYZ), cytochrome c (cyt c), and fibronectin (FN) were used
to evaluate their binding affinities for PEDOT films. FN, a pivotal
extracellular matrix component, was included for connecting to cell
adhesion behavior. Furthermore, the cellular adhesion behaviors on
PEDOT interfaces were evaluated. Three cell linesMG-63 osteosarcoma,
HeLa cervical cancer, and fibroblast NIH/3T3 were examined. The presence
of PC moieties significantly altered the adhesive response, including
the number of attached cells, their morphologies, and nucleus shrinkage.
MG-63 cells exhibited the highest tolerance for PC moieties. A feeding
ratio of PEDOT–PC exceeding 70% resulted in cell apoptosis.
This study contributes to understanding biomolecule adsorption on
PEDOT surfaces of diverse morphologies and degrees of the antifouling
moiety. Meanwhile, it also sheds light on the responses of various
cell types
Global Embodied Energy Flow and Stock Analysis with Endogeneous Fixed Capital
Fixed capital stock functions as an embodied energy storage
system
that connects economic activities which do not happen simultaneously.
This paper constructs a dynamic energy input–output model to
analyze embodied energy flows and stocks along both temporal and spatial
dimensions from 2000 to 2014. The results show that 2043 exajoule
of embodied energy was stored in the global fixed capital stock in
2014, which was about three times the world’s direct energy
use. Compared with those in developed countries, the gaps between
the dynamic energy footprints and the traditional ones were larger
in fast-developing countries. Net embodied energy usually flowed from
high-intensity economies to lower-intensity economies, and around
10% of the energy embodied in trade came from depreciation. The dynamic
embodied energy indicators provide information for improving energy
efficiency and mitigating corresponding problems from the perspective
of consumption
Consecutive Gated Injection-Based Microchip Electrophoresis for Simultaneous Quantitation of Superoxide Anion and Nitric Oxide in Single PC-12 Cells
As
important reactive oxygen species (ROS) and reactive nitrogen
species (RNS), cellular superoxide anion (O<sub>2</sub><sup>•–</sup>) and nitric oxide (NO) play significant roles in numerous physiological
and pathological processes. Cellular O<sub>2</sub><sup>•–</sup> and NO also have a close relationship and always interact with each
other. Thus, the simultaneous detection of intracellular O<sub>2</sub><sup>•–</sup> and NO, especially at the single-cell
level, is important. In this paper, we present a novel method to simultaneously
detect and quantify O<sub>2</sub><sup>•–</sup> and NO
in single cells using microchip electrophoresis based on a new consecutive
gated injection method. This novel injection method achieved consecutive
manipulation of single cells, guaranteeing an almost constant volumetric
flow rate and thus good quantitative reproducibility. After cellular
content separation by microchip electrophoresis and detection by laser-induced
fluorescence (MCE–LIF), O<sub>2</sub><sup>•–</sup> and NO in single PC-12 cells were simultaneously quantified in an
automated fashion. This is the first report of consecutive absolute
quantitation at the single-cell level. The quantitative results obtained
from single cells is beneficial for deep understanding of the biological
roles of cellular O<sub>2</sub><sup>•–</sup> and NO.
This new method constitutes a consecutive, accurate way to study the
synergistic function of O<sub>2</sub><sup>•–</sup> and
NO and other biomolecules in various biological events at the single-cell
level
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