نتایج جستجو برای: Bio-spectroscopy

تعداد نتایج: 230479  

Journal: :journal of medical signals and sensors 0
houman mirzaalian dastjerdi ramin soltanzadeh hossein rabbani

studies show that any complications including hemorrhage, lack of blood supply, lack of oxygen supply, and death of cells in a tissue, will have a clear effect on electrical properties of that tissue. thus, by measuring impedance of a set of tissues, potential problems of the damaged tissue may be found. since electrical impedance is closely related to the measuring frequency, obviously, every ...

Journal: :international journal of nano dimension 0
a. s. kurhekar department of electrical engineering, indian institute of technology bombay, powai, mumbai 400 076. india. p. r. apte department of electrical engineering, indian institute of technology bombay, powai, mumbai 400 076. india.

one of the bio-sensing mechanisms is mechanical. rather than measuring shift in resonance frequency, we adopt to measure the change in spring constant due to adsorption, as one of the fundamental sensing mechanism. this study explains  determination of spring constant of a surface functionalized micro machined micro cantilever, which resonates in a trapezoidal cavity-on silicon wafer, with the ...

Journal: :iranian journal of pharmaceutical research 0
azadeh ashtarinezhad department of toxicology, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. farshad h. shirazi 1- department of toxicology, school of pharmacy, shahidbeheshti university of medical sciences, tehran, iran. 2-pharmaceutical sciences research center, shahid beheshti university of medical sciences, tehran, iran. hossein vatanpour department of toxicology, school of pharmacy, shahidbeheshti university of medical sciences, tehran, iran baharak mohamazadehasl department of toxicology, school of pharmacy, shahidbeheshti university of medical sciences, tehran, iran ataolla panahyab young researchers club, science and research branch, islamic azad university, tehran, iran. maryam nakhjavani 1department of toxicology, school of pharmacy, shahidbeheshti university of medical sciences, tehran, iran

metronidazole is used to treat trichomoniasis, bacterial vaginosis, and other diseases. there are controversy aspects about its teratogenicity. a teratogenic agent can alter morphology or subsequent function of the fetus. the aim of this study was to examine an alternative method for the recognition of the mechanism or the bimolecular potential changes in mice fetus caused by metronidazole usin...

SnCl4/nano-sawdust was prepared as a carbohydrate-based catalyst containing of tin bearing cellulose units. The catalyst was characterized by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FESEM) and energy dispersive X-ray spectroscopy (EDS). The catalyst was applied successfully as a readily available, inexpensive, biodeg...

Journal: :Bioresource technology 2010
Sudong Yin Ryan Dolan Matt Harris Zhongchao Tan

In this study, cattle manure was converted to bio-oil by subcritical hydrothermal liquefaction in the presence of NaOH. The effects of conversion temperature, process gas, initial conversion pressure, residence time and mass ratio of cattle manure to water on the bio-oil yield were studied. The bio-oil was characterized in terms of elemental composition, higher heating value, ultraviolet-visibl...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده دندانپزشکی 1394

چکیده سابقه و هدف polyetheretherketone یک پلیمر نیمه کریستالینی با عملکرد عالی است که در ساخت پروتزهای دندانی تحت عنوان bio hpp به کار گرفته شده است. نسل قبلی آن نیز، bio xs از گروه پلی اترکتون ها بوده ولی فاقد فیلرهای سرامیکی بوده است. در راستای ارزیابی ادعای سازندگان درباره ی خصوصیات مکانیکی این رزین ها؛ تحقیق حاضر با هدف مقایسه ی استحکام خمشی و کششی رزین های ترموپلاستیک bio hpp و bio xs د...

2016
Weimin Chen Shukai Shi Thiphuong Nguyen Minzhi Chen

Bio-chars were produced by co-pyrolysis of lignin with high-density polyethylene at 350 °C, 450 °C, and 550 °C. X-ray diffraction (XRD), Raman spectroscopy, automated surface area and pore size analysis, scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and electron spin resonance (ESR) spectroscopy were performed on bio...

2017
Mingrong Cheng Weiping Zhu Qing Li Dejian Dai Yiming Hou

The present study investigated the synthesis of biotinylated chitosan (Bio-CS) from chitosan using a nanomaterial skeleton with biotin and the successful targeting of the formulation in liver cancer cells. Bio-CS was validated by fourier transformed infrared spectroscopy and hydrogen-1 nuclear magnetic resonance spectroscopy. Bio-CS and plasmid DNA were used to construct Bio-CS/plasmid DNA nano...

Journal: :THE JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE 1984

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