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A Moser et al.
Journal of the neurological sciences, 131(2), 183-189 (1995-08-01)
We could identify the MPTP-like compound and isoquinoline derivative N-methyl-norsalsolinol (2-MDTIQ) in cerebrospinal fluid (CSF) of patients with Parkinson's disease. The presence of 2-MDTIQ negatively correlated with the disease duration. In order to study the relationship between presence of 2-MDTIQ
Hye Jin Kwon et al.
Journal of nanoscience and nanotechnology, 13(5), 3417-3421 (2013-07-19)
The rapidly solidified Si-xTiNi (x = 0.2-0.45) alloy ribbons were fabricated via melt spinning process. The thickness of the melt-spun ribbons was about 12.5 microm, and the sound section was selected for the experiment. The microstructures of the ribbons were
Priyatha Premnath et al.
Journal of biomedical nanotechnology, 9(11), 1875-1881 (2013-09-26)
The advent of tissue engineering has invigorated interest in novel tissue regeneration matrices. An ideal matrix that simulates the natural extra cellular matrix (ECM) should be nanoscale, with three dimensionally interconnected nanofibers which cannot be generated by current methods such
Pil Ju Ko et al.
Journal of nanoscience and nanotechnology, 13(4), 2451-2460 (2013-06-15)
The physical properties of porous materials are being exploited for a wide range of applications including optical biosensors, waveguides, gas sensors, micro capacitors, and solar cells. Here, we review the fast, easy and inexpensive electrochemical anodization based fabrication porous silicon
M A Lovell et al.
Archives of neurology, 58(3), 392-396 (2001-03-20)
Markers of oxidative stress are increased in cerebrospinal fluid (CSF) of patients with Alzheimer disease (AD), although none of those reported are appropriate diagnostic markers because of the overlap between patients with AD and control subjects. To determine the ratio
Hyunhui Kim et al.
Journal of nanoscience and nanotechnology, 13(5), 3559-3563 (2013-07-19)
Silicon sheets were fabricated by a new fabricating method, spin casting with various rotation speeds of the graphite mold. The microstructure of spin-cast silicon sheets were investigated using an electron probe microanalyzer (EPMA) and scanning electron microscope/electron backscatter diffraction/orientation image
Timothy J Barnes et al.
Therapeutic delivery, 4(7), 811-823 (2013-07-26)
Porous silicon (pSi) is a nanostructured carrier system that has received considerable attention over the past 10 years, for use in a wide variety of biomedical applications, including biosensing, biomedical imaging, tissue scaffolds and drug delivery. This interest is due
Bomin Cho et al.
Journal of nanoscience and nanotechnology, 14(7), 4832-4836 (2014-04-25)
Asymmetric porous silicon multilayer (APSM)-based optical biosensor was developed to specify human Immunoglobin G (Ig G). APSM chip was generated by an electrochemical etching of silicon wafer using an asymmetric electrode configuration in aqueous ethanolic HF solution and constituted with
Dominique Collard
Frontiers in bioscience (Elite edition), 5, 955-965 (2013-06-12)
In modern life, technologies enabling detection of biological molecules at a low threshold, for health and ecological concerns, are in high demand. Directly interrogating the molecules is a promising direction to clarify the noisy response of conventional assays arising from
M L Selley et al.
Neurobiology of aging, 23(3), 383-388 (2002-04-18)
There is evidence that increased blood concentrations of homocysteine may be a risk factor for Alzheimer's disease. (E)-4-hydroxy-2-nonenal (HNE) is a neurotoxic product of lipid peroxidation that is increased in the ventricular fluid and brains of patients with Alzheimer's disease.
Seungil Park et al.
Journal of nanoscience and nanotechnology, 13(5), 3397-3402 (2013-07-19)
We investigated the thin film growths of hydrogenated silicon by hot-wire chemical vapor deposition with different flow rates of SiH4 and H2 mixture ambient and fabricated thin film solar cells by implementing the intrinsic layers to SiC/Si heterojunction p-i-n structures.
Daniel Fine et al.
Advanced healthcare materials, 2(5), 632-666 (2013-04-16)
This manuscript constitutes a review of several innovative biomedical technologies fabricated using the precision and accuracy of silicon micro- and nanofabrication. The technologies to be reviewed are subcutaneous nanochannel drug delivery implants for the continuous tunable zero-order release of therapeutics
Jian-ping Jia et al.
Chinese medical journal, 117(8), 1161-1164 (2004-09-14)
An important aspect of Alzheimer's disease (AD) is loss or impairment of cholinergic neurons. It is controversial whether there is a similar cholinergic impairment and cerebral deficit of acetylcholine (ACh) in the case of vascular dementia (VD). The purpose of
Toshihiko Iwahashi et al.
Nihon Jibiinkoka Gakkai kaiho, 116(11), 1220-1225 (2014-01-09)
It is hard to cure dacryocystitis caused by a paranasal sinus mucocele with treatment which only targets the mucocele. Also, it is difficult to identify the lacrimal sac and the nasolacrimal duct preoperatively and intraoperatively when the lacrimal passage is
Valerio Leoni et al.
Clinical chemistry and laboratory medicine, 42(2), 186-191 (2004-04-06)
24S-Hydroxycholesterol (24OHC) and 27-hydroxycholesterol (27OHC) are two structurally similar oxysterols of different origins--the former almost exclusively formed in the brain and the latter formed to a lesser extent in the brain than in most other organs. HYPOTHESIS TO BE TESTED:
Jaewoo Lee et al.
Journal of nanoscience and nanotechnology, 13(5), 3495-3499 (2013-07-19)
A spin-casting process for fabricating polycrystalline silicon sheets for use as solar cell wafers is proposed, and the parameters that control the sheet thickness are investigated. A numerical study of the fluidity of molten silicon indicates that the formation of
Tetsurou Odatsu et al.
American journal of dentistry, 26(1), 51-55 (2013-06-04)
To investigate the effect of surface polishing and finishing methods on the surface roughness of restorative ceramics. Disk specimens were prepared from feldspar-based, lithium disilicate-based, fluorapatite leucite-based and zirconia ceramics. Four kinds of surface polishing/finishing methods evaluated were: Group 1:
Taiuk Rim et al.
Journal of nanoscience and nanotechnology, 14(1), 273-287 (2014-04-16)
The interest in biologically sensitive field effect transistors (BioFETs) is growing explosively due to their potential as biosensors in biomedical, environmental monitoring and security applications. Recently, adoption of silicon nanowires in BioFETs has enabled enhancement of sensitivity, device miniaturization, decreasing
Jong Jin Song et al.
Journal of nanoscience and nanotechnology, 13(5), 3413-3416 (2013-07-19)
The phase change due to varying content of titanium in Si-Ni-xTi alloys and its effect on the electrochemical behavior has been investigated. Specimens were prepared by melt-spinning to reduce the microstructure scale. Results showed that silicon particles of 50-100 nm
A H Reshak et al.
Progress in biophysics and molecular biology, 113(2), 327-332 (2013-10-22)
The potential of solar cells have not been fully tapped due to the lack of energy conversion efficiency. There are three important mechanisms in producing high efficiency cells to harvest solar energy; reduction of light reflectance, enhancement of light trapping
C Syburra et al.
Ukrains'kyi biokhimichnyi zhurnal (1999 ), 71(3), 112-115 (1999-12-28)
It is well known that brain and nervous system cells are prone to oxidative damage because of their relatively low content of antioxidants, especially enzymatic ones, and of the high levels of both membrane polyunsaturated fatty acids (PUFA) and iron
Nathan Manville et al.
Nature chemistry, 5(9), 768-774 (2013-08-24)
Catalytic enantioselective monosilylations of diols and polyols furnish valuable alcohol-containing molecules in high enantiomeric purity. These transformations, however, require high catalyst loadings (20-30 mol%) and long reaction times (2-5 days). Here, we report that a counterintuitive strategy involving the use of
Youngin Jeon et al.
Journal of nanoscience and nanotechnology, 13(5), 3350-3353 (2013-07-19)
Si-nanowire (NW)-array-based NOT-logic circuits were constructed on plastic substrates. The Si-NW arrays were fabricated on a Si wafer through top-down methods, including conventional photolithography and crystallographic wet etching, and transferred onto the plastic substrates. Two field-effect transistors were fabricated on
Sukhyung Park et al.
Journal of nanoscience and nanotechnology, 13(5), 3539-3541 (2013-07-19)
In this study, pn heterojunction diodes are constructed with p-type HgTe nanoparticle (NP) films dropped by a nanoplotter and n-type Si nanowires (NWs) transferred onto plastic substrates and their optoelectronic characteristics are investigated under the illumination of 633-nm wavelength light.
Jae Cheol Shin et al.
Journal of nanoscience and nanotechnology, 13(5), 3511-3514 (2013-07-19)
We have characterized the structural properties of the ternary In(x)Ga(1-x)As nanowires (NWs) grown on silicon (Si) substrates using metalorganic chemical vapor deposition (MOCVD). Au catalyzed vapor-liquid-solid (VLS) mode was used for the NW growth. The density of the In(x)Ga(1-x)As NW
Anthony J Giuffre et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(23), 9261-9266 (2013-05-22)
Calcified skeletons are produced within complex assemblages of proteins and polysaccharides whose roles in mineralization are not well understood. Here we quantify the kinetics of calcite nucleation onto a suite of high-purity polysaccharide (PS) substrates under controlled conditions. The energy
Raúl J Martín-Palma et al.
Expert opinion on drug delivery, 11(8), 1273-1283 (2014-06-19)
The particular properties of nanostructured porous silicon (nanoPS) make it an attractive material for controlled and localized release of therapeutics within the body, aiming at increased efficacy and reduced risks of potential side effects. Since this is a rapidly evolving
Eyal Karzbrun et al.
Science (New York, N.Y.), 345(6198), 829-832 (2014-08-16)
The assembly of artificial cells capable of executing synthetic DNA programs has been an important goal for basic research and biotechnology. We assembled two-dimensional DNA compartments fabricated in silicon as artificial cells capable of metabolism, programmable protein synthesis, and communication.
J J Powell et al.
The British journal of nutrition, 94(5), 804-812 (2005-11-10)
Si may play an important role in bone formation and connective tissue metabolism. Although biological interest in this element has recently increased, limited literature exists on the Si content of foods. To further our knowledge and understanding of the relationship
R Shukla et al.
The International journal of neuroscience, 116(12), 1391-1402 (2006-12-06)
Evidence from clinical and experimental studies supports the hypothesis of free radical-mediated damage of dopaminergic neurons in the pathology of Parkin's disease (PD). The present study was undertaken to evaluate the role of nitric oxide and oxidative stress in PD.
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