11 research outputs found
3-Dimensional Dynamic Quantitative Analysis System of Facial Motion.
<p>3-Dimensional Dynamic Quantitative Analysis System of Facial Motion.</p
Static measurement <i>ICC</i>.
<p>X =  X axis, Z =  Z axis, ∠ = angle.</p><p>Static measurement <i>ICC</i>.</p
A, online reconstruction; B, offline reconstruction.
<p>A, online reconstruction; B, offline reconstruction.</p
Observational points on face.
<p>A/a tragus parallel to the upper wall of external acoustic canal, B/b central position above the eyebrow, C/c center of the upper eyelid, D/d center of the lower eyelid, E/e angulus oculi temporalis, F/f angulus oculi medialis, G/g ala of the nose, H/h corner of the mouth, I root of the columella nasi, J center of eyebrows, K bony–cartilaginous junction along the nasal dorsum, II philtrum, III center of the lower lip.</p
Highly Functional Unsaturated Ester Macromonomer Derived from Soybean Oil: Synthesis and Copolymerization with Styrene
A highly functional unsaturated ester
macromonomer was synthesized
from soybean oil (SBO), and its chemical structure was confirmed by
FT-IR, <sup>1</sup>H NMR, <sup>13</sup>C NMR, and gel permeation chromatography.
The monomer was prepared through modifying epoxidized soybean oil
(ESO) first with a synthesized precursor, hydroxyethyl acrylated maleate
(HEAMA), and then employing maleic anhydride (MA) to modify the produced
ESO-HEAMA. The obtained SBO-based monomer (ESO-HEAMA-MA) possessed
a CC bond functionality of 6.75–8.15 per ESO. Effects
of styrene concentration, feed ratio, and initiator concentration
on the dynamic mechanical properties of the cured bioresins were investigated
carefully. When the monomer with the highest Cî—»C bond functionality
was used, the cured resins with 20–60 wt % styrene demonstrated
cross-link densities of 5.07–9.52 (10<sup>3</sup> mol)/m<sup>3</sup>, storage moduli at 25 °C of 1.32–2.16 GPa, glass
transition temperatures of 69.9–114.1 °C, and tensile
strengths and moduli of 19.7–33.1 MPa and 1.17–2.11
GPa, respectively. Microstructural morphologies of tensile-fractured
surfaces of the cured resins were studied by scanning electron microscopy.
Finally, curing behaviors of the resultant resin was studied by differential
scanning calorimetry. The developed eco-friendly biomaterials have
potential applications in the industry of unsaturated polyester resins
High-Performance Poly(lactic-co-glycolic acid)-Magnetic Microspheres Prepared by Rotating Membrane Emulsification for Transcatheter Arterial Embolization and Magnetic Ablation in VX<sub>2</sub> Liver Tumors
Interventional
embolization is a popular minimally invasive vascular therapeutic
technique and has been widely applied for hepatocellular carcinoma
(HCC) therapy. However, harmful effects caused by transcatheter arterial
chemoembolization (TACE) and radioembolization, such as the toxicity
of chemotherapy or excessive radiation damage, are serious disadvantages
and significantly reduce the therapeutic efficacy. Here, a synergistic
therapeutic strategy combined transcatheter arterial embolization
and magnetic ablation (TAEMA) by using polyÂ(lactic-<i>co</i>-glycolic acid) (PLGA)-magnetic microspheres (MMs) has been successfully
applied to orthotopic VX<sub>2</sub> liver tumors of rabbits. These
MMs fabricated by novel rotating membrane emulsification system with
well-controlled sizes (100–1000 μm) exhibited extremely
low hemolysis ratio and excellent biocompatibility with HepG2 cells
and L02 cells. Moreover, experimental results demonstrated that, while
exposed to alternating magnetic field (AMF) after TAE, the tumor edge
could be heated up by more than 15 °C both in vivo and in vitro,
whereas only a negligible increase of temperature was observed in
the normal hepatic parenchyma (NHP) nearby. Sufficient temperature
increase induces apoptosis of tumor cells. This can further inhibit
the tumor angiogenesis and results in necrosis compared to the rabbits
only treated with TAE. In stark contrast, tumors rapidly grow and
subtotal metastasis occurs in the lungs or kidneys, causing severe
complications for rabbits only irradiated under AMF. Importantly,
the results from the biochemical examination and the gene expression
of relative HCC markers further confirmed that the treatment protocol
using PLGA-MMs could achieve good biosafety and excellent therapeutic
efficacy, which are promising for liver cancer therapy
Boosted Sensor Performance by Surface Modification of Bifunctional <i>rht</i>-Type Metal–Organic Framework with Nanosized Electrochemically Reduced Graphene Oxide
The
surface and interface could be designed to enhance properties of electrocatalysts,
and they are regarded as the key characteristics. This report describes
surface modification of a bifunctional <i>rht</i>-type metal–organic
framework (MOF, Cu-TDPAT) with nanosized electrochemically reduced
graphene oxide (n-ERGO). The hybrid strategy results in a Cu-TDPAT–n-ERGO
sensor with sensitive and selective response toward hydrogen peroxide
(H<sub>2</sub>O<sub>2</sub>). Compared with Cu-TDPAT, Cu-TDPAT–n-ERGO
exhibits significantly enhanced electrocatalytic activities, highlighting
the importance of n-ERGO in boosting their electrocatalytic activity.
The sensor shows a wide linear detection range (4–12 000
μM), and the detection limit is 0.17 μM (S/N = 3) which
is even lower than horseradish peroxidase or recently published noble
metal nanomaterial based biosensors. Moreover, the sensor displays
decent stability, excellent anti-interference performance, and applicability
in human serum and urine samples. Such good sensing performance can
be explained by the synergetic effect of bifunctional Cu-TDPAT (open
metal sites and Lewis basic sites) and n-ERGO (excellent conductive
property). It is expected that <i>rht</i>-type MOF-based
composites can provide wider application potential for the construction
of bioelectronics devices, biofuel cells, and biosensors