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ethylene glycol based sensors

Synthetic poly(ethylene glycol) based hydrogels for biomedical applications

Synthetic poly(ethylene glycol) based hydrogels for biomedical applications

Cao đẳng - Đại học

... Polyelectrolyte complex PEG Poly (ethylene glycol) PEG-AC Tetra acrylate-terminated PEG PEGDA Polyethelyne glycol diacrylate PEGDMA Polyethelyne glycol dimethacrylate PEGMA Polyethelyne glycol methacrylate ... antimicrobial hydrogel coatings based on dimethyldecylammonium chitosan (with high quaternization)-graft-poly (ethylene glycol) methacrylate (DMDC-Q-g-EM) and poly (ehylene glycol) diacrylate [126] ... Many synthetic polymers, such as poly (D,L-lactic-co-glycolic acid) (PLGA) [15], poly (hydroxyethyl methacrylate (pHEMA) [16] and poly (ethylene glycol) (PEG) [17, 18], have been used in the formulation...
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Ethylene glycol

Ethylene glycol

Báo cáo khoa học

... Một số tính chất vật lí của ethylene glycol và dẫn xuất: Tên chất Diethylene glycol Trietylen glycol Tetraethylene glycol Công thức Monoethylene glycol HOCH2CH2OH H(OCH2CH2 ) 2OH H(OCH2CH2 ) 3OH H(OCH2CH2 ... dùng công nghiệp e Phản ứng epoxy hóa Ethylene glycol phản ứng với ethylene oxit để tạo thành di­ , tri­ ,  tetra ­ , và polyethylen glycol.  Tỷ lệ của các glycol tìm thấy trong  các sản phẩm phản ứng phụ thuộc vào loại xúc tác được xử dụng  ... thành glycol monoaxetat so với glycol diaxetat ( 60-100 oC, 3.04 MPa) Nếu sử dụng hệ xúc tác PdCl - NO2 – CH3CN hòa tan axit axetic cho kết ethylene glycol monoaxetat ( 50% sản lượng ) etylen glycol...
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effect of water content of ethylene glycol as electrolyte for synthesis

effect of water content of ethylene glycol as electrolyte for synthesis

Vật lý

... oxidation of ethylene glycol in acidic and basic media has been investigated widely [24– 26] In the aqueous solution, the oxidation of ethylene glycol involves the following reaction steps: [25] Ethylene ... Ethylene Glycol ! Glycolaldehyde ! Glyoxal or Glycolic acid ! Glyoxylic Acid ! Oxalic acid ! Carbon dioxide: ð1Þ In acid media, predominant formation of glycolaldehyde (CH2OH–CHO) and glycolic ... reported 12 V as the limiting anodization potential in ethylene glycol; whereas, Paulose et al [12] anodized at 60 V using anhydrous ethylene glycol These different observations also could be related...
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ethanol and ozone sensing characteristics of wo3 based sensors activated by au and pd

ethanol and ozone sensing characteristics of wo3 based sensors activated by au and pd

Vật lý

... Labidi et al / Sensors and Actuators B 120 (2006) 338–345 as H2 S [11], NOx [12,13], O3 [14,15] and C2 H6 O [16,17] It is well known that WO3 like the majority of metal oxide -based gas sensors suffer ... that the Au/WO3 sensor gives A Labidi et al / Sensors and Actuators B 120 (2006) 338–345 341 Table Response “Sgas ” of WO3 bare, Au/WO3 and Pd/WO3 based sensors towards 2% of C2 H6 O and 0.8 ppm ... (×106 ) Cgb (×10−7 F) n a b 0.018 1.81 0.967 2.37 6.81 0.433 Sensors Gases Table Modeled RC for WO3 bare, Au/WO3 and Pd/WO3 based sensors towards 0.8 ppm of O3 and dry air (baseline) at 300 ◦...
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micro - machined wo3 - based sensors with improved characteristics

micro - machined wo3 - based sensors with improved characteristics

Vật lý

... responses were obtained by the WO3 micro -sensors deposited with the floating regime in comparison with the sensors fabricated with the interruption regime All types of sensors showed higher responses at ... Sensitivity Table shows the sensor response to NO2 for the micro -sensors prepared with interrupted and floating regimes Four types of micro -sensors were studied (i.e., two types of electrode geometries ... four micro -sensors had a 100 ␮m gap (wide electrode gap) and the other two had a 50 ␮m gap (narrow electrode gap) The electrode area in all cases was 400 ␮m × 400 ␮m The layout of the sensors array...
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ethylene glycol assisted hydrothermal synthesis offlower like zno architectures

ethylene glycol assisted hydrothermal synthesis offlower like zno architectures

Cao đẳng - Đại học

... prepared using (i) 20 ml ethylene glycol for day at (a) 140 °C, (b) 160 °C (low magnified), (c) 160 °C (high magnified), (d) 180 °C and (ii) at 160 °C for day using ethylene glycol (e) ml and (f) ... schematic diagram of flower like ZnO architecture prepared (a) absence of ethylene glycol and (b) presence of ethylene glycol Fig Raman spectrum of ZnO crystals Fig Room temperature PL spectrum ... the quantity of ethylene glycol is reduced to less than 20 ml On the other hand, the morphology of the ZnO is changed to hexagonal rods (Fig 2e and f) when the quantity of ethylene glycol is reduced...
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NGỘ ĐỘC ALCOOLS : ETHYLENE GLYCOL, METHANOL VÀ ISOPROPYL ALCOHOL pps

NGỘ ĐỘC ALCOOLS : ETHYLENE GLYCOL, METHANOL VÀ ISOPROPYL ALCOHOL pps

Cao đẳng - Đại học

... METHANOL VÀ ETHYLENE GLYCOL TƯƠNG TỰ NHAU NHƯ THẾ NÀO ? Methanol ethylene glycol khởi đầu chuyển hóa ADH Methanol tiếp tục chuyển hóa thành formic acid, ethylene glycol chuyển hóa thành glycolic ... xét đến ngộ độc alcohol, methanol hay ethylene glycol Nếu có osmolal gap bất thường anion gap, xét đến ngộ độc isopropyl alcohol 10/ METHANOL VÀ ETHYLENE GLYCOL ĐỘC NHƯ THẾ NÀO ? Tử vong ghi nhận ... Chúng nên sử dụng nồng độ ethylene glycol hay methanol vượt 20 mg/dL ; có nhiễm toan nồng độ ; có bệnh sử uống chất độc chờ đợi nồng độ xác nhận methanol hay ethylene glycol 19/ ĐIỀU TRỊ ETHANOL...
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Báo cáo khoa học:

Báo cáo khoa học: "Effect of ethylene glycol monoethyl ether on the spermatogenesis in pubertal and adult rats" pdf

Báo cáo khoa học

... Publication No 83-112: Glycol ethers, 2-methoxyethanol and 2-ethoxyethanol May 2, 1983 Foster, P M D., Creasy, D M., Foster, J R and Gray, T B J Testicular toxicity produced by ethylene glycol monomethyl ... of ethylene glycol monomethyl and monoethyl ether in the rat Toxicol Appl Pharmacol 1983, 69, 385-399 Gray, T B J., Moss, E J., Creasy, D M and Gangolli, S D Studies on the toxicity of some glycol ... Park, C S., Lee, K H., Roh, H K and Cha, Y N Decreased formation of ethoxyacetic acid from ethylene glycol monoethyl ether and reduced atrophy of testes in male rats upon combined administration...
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Xác định hàm lượng Diethylene Glycol, Ethylene Glycol có trong kem đánh răng bằng phương pháp GC-MS potx

Xác định hàm lượng Diethylene Glycol, Ethylene Glycol có trong kem đánh răng bằng phương pháp GC-MS potx

Hóa học - Dầu khí

... 1,2-propanediol, 1,3-propanediol, diethylene glycol hay glycerin 1,2-Propanediol Start Time a (min) 4.0 Ethylene Glycol 6.6 1,3-Propanediol 7.5 Diethylene Glycol 9.0 Glycerin 12.0 Group 31 (11) ... giàu gồm có đại diện cho loại mẫu phân tích va làm giàu thêm chất phân tích (tức Diethylene glycol ethylene glycol) mức mg/g (hoặc 0.1 % trọng lượng) Phép phân tích mẫu phải thể chất có diện ... tử b - Sự nhận peak: Thời gian lưu gần phép phân tích: Chất 1,2-Propanediol Ethylene Glycol 1,3-Propanediol Diethylene Glycol Glycerin Thời gian lưu (min) 6.4 6.8 8.4 10.4 13.7 Chú giải Đây chất...
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Báo cáo y học:

Báo cáo y học: "Control of hyperuricemia in subjects with refractory gout, and induction of antibody against poly(ethylene glycol) (PEG), in a phase I trial of subcutaneous PEGylated urate oxidase" potx

Báo cáo khoa học

... Accelerated clearance of polyethylene glycol- modified proteins by antipolyethylene glycol IgM Bioconjug Chem 1999, 10:520-528 33 Richter AW, Akerblom E: Polyethylene glycol reactive antibodies ... polyethylene glycol- modified adenosine deaminase N Engl J Med 1987, 316:589-596 26 Chaffee S, Mary A, Stiehm ER, Girault D, Fischer A, Hershfield MS: IgG antibody response to polyethylene glycol- modified ... 89:1643-1651 27 Hershfield MS: Biochemistry and immunology of poly (ethylene glycol) -modified adenosine deaminase (PEG-ADA) In Poly (ethylene glycol) Chemistry and Biological Applications Edited by: Harris...
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Báo cáo y học:

Báo cáo y học: " Novel multi-component nanopharmaceuticals derived from poly(ethylene) glycol, retro-inverso-Tat nonapeptide and saquinavir demonstrate combined anti-HIV effect" potx

Báo cáo khoa học

... polyethylene glycol esters of hydrocortisone 21-succinate as ocular prodrugs Int J Pharm 1999, 182:79-92 Caliceti P, Veronese FM: Pharmacokinetic and biodistribution properties of poly (ethylene glycol) -protein ... Gunaseelan S, Debrah O, Wan L, Leibowitz MJ, Rabson AB, Stein S, Sinko PJ: Synthesis of poly (ethylene glycol) -based saquinavir prodrug conjugates and assessment of release and anti-HIV1 bioactivity ... antagonist, R.I.CKTat9, alone or in combination with saquinavir on multifunctional poly (ethylene glycol) (PEG) -based bioconjugates is demonstrated Furthermore, the mechanism of Page of 15 (page number...
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báo cáo khoa học:

báo cáo khoa học: "Formulation of polylactide-co-glycolic acid nanospheres for encapsulation and sustained release of poly(ethylene imine)-poly(ethylene glycol) copolymers complexed to oligonucleotides" pptx

Báo cáo khoa học

... previously described [47] Briefly, copolymers composed of branched poly (ethylene imine)-25000 (PEI25K) and methoxypoly (ethylene glycol) -5000 (mPEG5K) (Sigma-Aldrich, St Louis, MO, USA) were prepared ... Poly (ethylene imine) (PEI) is a highly protonatable amine rich polymer that has been established as an efficient nucleotide carrier [10] The cationic nature of PEI allows the poly- Cationic PEI -based ... membranes, promoting endocytotic uptake of the nucleotides into cells [10-17] Grafting of polyethylene glycol (PEG) polymers to PEI has been shown to significantly enhance its functionality as a...
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Báo cáo y học:

Báo cáo y học: "Delayed ethylene glycol poisoning presenting with abdominal pain and multiple cranial and peripheral neuropathies: a case report" ppt

Báo cáo khoa học

... Cook L, Mackay K: Ethylene glycol intoxication: Disparate findings of immediate versus delayed presentation W V Med J 2006, 102:32-34 Hess R, Bartels MJ, Pottenger LH: Ethylene glycol: an estimate ... AE: Multiple cranial nerve deficits after ethylene glycol poisoning Ann Emerg Med 1991, 20:208-210 Tobe TJM, Braam GB, Meulenbelt J, van Dijk GW: Ethylene glycol poisoning mimicking Snow White Lancet ... related to ethylene glycol ingestion Clin Pharmacol Ther 1997, 61:692-699 Hasbani MJ, Sansing LH, Perrone J, Asbury AK, Bird SJ: Encephalopathy and peripheral neuropathy following diethylene glycol...
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Báo cáo khoa hoc:

Báo cáo khoa hoc:" Evaluation of triblock copolymeric micelles of δvalerolactone and poly (ethylene glycol) as a competent vector for doxorubicin delivery against cancer" doc

Báo cáo khoa học

... diagram of synthesis of Poly(δ-valerolactone)/Poly (ethylene glycol) /Poly (δ-valerolactone) (VEV) copolymer using δ-valerolactone and poly (ethylene glycol) as monomers by ring opening polymerization ... bought monomers (A) δ-Valerolactone (VL) (B) Poly (ethylene glycol) (PEG) and the synthesized copolymer VEV (C) Poly (δ-valerolactone)/Poly (ethylene glycol) /Poly(δ-valerolactone) (VEV) copolymer were ... bought monomers (A) δ-Valerolactone (VL) (B) Poly (ethylene glycol) (PEG) and the synthesized copolymer VEV (C) Poly(δ-valerolactone)/Poly (ethylene glycol) /Poly(δ-valerolactone) (VEV) copolymer were...
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Evaluation of poly (ethylene glycol) grafting as a tool for improving membrane performance

Evaluation of poly (ethylene glycol) grafting as a tool for improving membrane performance

Tổng hợp

... Polyacrylonitrile Polyethylene Polyethylene glycol Polyethylene oxide Polyether sulfone Polyethylene terepthalate Polypropylene Porcine Pancreatic Lipase Polysulfone Polytetrafluoroethylene (Teflon) ... PEG is also known as polyethylene oxide (PEO) or poly oxyethylene (POE) depending on the definition of its monomer molecule as ethylene glycol or ethylene oxide or oxyethylene respectively The ... compared to transphilic and hydrophilic fractions 22 3.3 Hydrophilic Enhancer: Poly (Ethylene Glycol) Poly (ethylene glycol) -lipid (PEG-lipid) conjugates are widely used in the field of nanoparticulate...
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bài thuyết trình ethylene glycol

bài thuyết trình ethylene glycol

Hóa học - Dầu khí

... Tính chất hóa lý • Giới thiệu Ethylene glycol NỘI DUNG I Giới thiệu Ethylene glycol *Ethylene glycol : Tên thường gọi Glycol rượu hai nhóm chức đơn giản *Ethylene glycol ( IUPAC tên : etan-1,2-diol) ... tử nên tách nước từ Ethylene glycol tạo axetandehit - Ngoài phản ứng có phản ứng hay sử dụng công nghiệp  Phản ứng Oxy hóa  Phản ứng tạo 1,3- dioxolan Phản ứng ethylene glycol orthofomates ... polyester, ngành công nghiệp vải nhựa polyethylene terephthalate Cấu trúc không gian Công thức cấu tạo II Tính chất hóa lý Tính chất vật lý Ethylene glycol chất lỏng không màu không mùi có vị...
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detection of organic gases using tio2 nanotube - based gas sensors

detection of organic gases using tio2 nanotube - based gas sensors

Vật lý

... and pore size distribution is quite effective for improving the sensitivity of TiO2-nanotube based gas sensors 60 o O.T 500 C 50 40 500 ppm H2 500 ppm CO 47 ppm Ethanol 50 ppm Toluene 30 20 10 (a) ... sized organic gas molecules References N Yamazoe, G Sakai, K Shimanoe, Oxide semiconductor gas sensors, Catal Surveys from Asia, (2003) 63-75 D E Williams, Semiconducting oxides as gas-sensitive...
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h2s sensors based on tungsten oxide nanostructures

h2s sensors based on tungsten oxide nanostructures

Vật lý

... laser (632.81 nm) in the back scattering geometry To fabricate thick film sensors, an appropriate quantity of diethyleneglycol was added to the desired nanostructure of tungsten oxide to obtain ... sensor based on a single tin oxide nanobelt, Appl Phys Lett 88 (2006) 263102–263104 [7] C.S Rout, K Ganesh, A Govindaraj, C.N.R Rao, Sensors for the nitrogen oxides, NO2 , NO and N2 O, based on ... High-sensitivity hydrocarbon sensors based on tungsten oxide nanowires, J Mater Chem 16 (2006) 3936–3941 [9] H Huang, O.K Tan, Y.C Lee, T.D Tran, M.S Tse, X Yao, Semiconductor gas sensor based on tin oxide...
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