نتایج جستجو برای: titanium oxideboric acid

تعداد نتایج: 781357  

Journal: :Chemical communications 2010
A Sreekumaran Nair Shengyuan Yang Peining Zhu Seeram Ramakrishna

Nanofibers, produced by electrospinning a solution containing titanium tetra(IV) isopropoxide, polyvinyl acetate and acetic acid in N,N-dimethyl acetamide, upon sintering at 500 °C produce rice grain-shaped TiO(2) mesostructures. Each rice grain-shaped TiO(2) has a mixed crystal structure and high porosity and the mesostructures are found to have applications in dye-sensitized solar cells.

2015
Tadashi Kokubo Seiji Yamaguchi

To reveal general principles for obtaining bone-bonding bioactive metallic titanium, Ti metal was heat-treated after exposure to a solution with different pH. The material formed an apatite layer at its surface in simulated body fluid when heat-treated after exposure to a strong acid or alkali solution, because it formed a positively charged titanium oxide and negatively charged sodium titanate...

Journal: :Clinical oral implants research 2012
Anna Louropoulou Dagmar E Slot Fridus A Van der Weijden

OBJECTIVE To systematically collect and evaluate existing evidence on the effects of different mechanical instruments on the surface characteristics of smooth and rough titanium surfaces. MATERIALS AND METHODS PubMed-MEDLINE, Cochrane-CENTRAL and EMBASE databases were searched up to December 2010 to identify appropriate studies. The eligible studies were controlled studies investigating titan...

2017
Tatsumi NOGUCHI Masayuki HATTORI Masao YOSHINARI

fluoride-containing solutien. Commercially pure titanium (CP-Ti) and six titanium-based alloys were used: Ti-O.15Pd, Ti6Al-4V, Ti-7Nb-6Al, Ti-55Ni, Ti-10Cu, and Ti-20Cr. Two test solutions were prepared fbr immersion of polished titanium and titanium alloys: one consisting of O,2% NaF + O,9% NaCl (pH 3.8 with lactic acid) and the other of O.1 mol/1 H202 + O.9% NaCl (pH 5.5). Following immersion...

2015
Mukta Kulkarni Ajda Flašker Maruša Lokar Katjuša Mrak-Poljšak Anca Mazare Andrej Artenjak Saša Čučnik Slavko Kralj Aljaž Velikonja Patrik Schmuki Veronika Kralj-Iglič Snezna Sodin-Semrl Aleš Iglič

Titanium and titanium alloys are considered to be one of the most applicable materials in medical devices because of their suitable properties, most importantly high corrosion resistance and the specific combination of strength with biocompatibility. In order to improve the biocompatibility of titanium surfaces, the current report initially focuses on specifying the topography of titanium dioxi...

Journal: :Chemical communications 2012
Timo A Immel Martin Grützke Anne-Katrin Späte Ulrich Groth Peter Öhlschläger Thomas Huhn

Chelate stabilization of a titanium(IV)-salan alkoxide by ligand exchange with 2,6-pyridinedicarboxylic acid (dipic) resulted in heptacoordinate complex 3 which is not redox-active, stable on silica gel and has increased aqueous stability. 3 is highly toxic in HeLa S3 and Hep G2 and has enhanced antitumor efficacy in a mouse cervical-cancer model.

Journal: :Processes 2022

With the increasing attention to light oil, catalytic cracking process of heavy oil is being vigorously developed. The silicon hydroxyl groups on surface mesoporous silica materials can be used as weak acid centers preliminarily crack macromolecules. Herein, a strategy introducing titanium into skeleton for modification proposed increase active sites, well improve hydrothermal stability. After ...

Journal: : 2023

A solar cell was manufactured from local materials and dyed using dyes extracted different organic plants. The glass slides were coated with a nano-porous layer of Titanium Oxide infused two types acids, Nitric acid Acetic acid. Pomegranate, Hibiscus, Blackberry Blue Flowers. They then tested comparison made for the amount voltage they generate when exposed to sunlight. Hibiscus sabdariffa extr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی ساری - دانشکده علوم کشاورزی 1393

قارچ ها به عنوان یکی از مهمترین عوامل بیماریزای گیاهی، منبع اصلی از متابولیت های ثانویه بیواکتیو هستند، و از اهمیت قابل توجهی در فعل و انفعالات زیست محیطی برخوردار می باشند از جمله متابولیت ها می توان آنتی بیوتیک ها، توکسین ها و آنزیم ها را نام برد. در این پژوهش شناسایی متابولیت های ثانویه تولید شده در 21 گونه قارچی با کمک gc – ms انجام گردید. نتایج حاصل از بررسی قابلیت ضد باکتریایی، ضد قارچی، ...

2008
Gamze Bulut Asgar Kayan

Tin and titanium pentenoate have been prepared from tin(IV) butoxide and titanium (IV) isopropoxide in alcohol and 3-pentenoic acid. Reactions of Sn(OBu n )4 and Ti(OPr i )4 with 3-pentenoic acid in 1:1 molar ratio were studied in butanol and propanol solution at room temperature by sol-gel process. The complexations were investigated by 13 C, 1 HNMR and FT-IR spectroscopy. 13 C{ 1 H}, 1 H-NMR ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید