نتایج جستجو برای: nanoparticle melamine sulfonic acidsio2

تعداد نتایج: 36065  

Journal: :Journal of food science 2008
M Lin L He J Awika L Yang D R Ledoux H Li A Mustapha

Melamine, a nitrogen-rich chemical, was implicated in pet and human food recalls in 2007, which caused enormous economic losses to the food industry. In this study, melamine concentration in wheat gluten, chicken feed, and processed foods (that is, cake and noodle) was measured by surface enhanced Raman spectroscopy (SERS) in combination with SERS-active substrates. SERS was able to rapidly det...

Journal: :Chemical communications 2015
Naimin Shao Tianjiao Dai Yan Liu Yiyun Cheng

Cyanuric acid is able to form complementary hydrogen bonds with melamine. Here, the specific recognition between cyanuric acid and melamine is used to significantly improve the gene transfection efficacy of low generation dendrimers via a supramolecular approach.

2014
Sami Ullah M A Bustam M Nadeem M Y Naz W L Tan A M Shariff

Melamine formaldehyde (MF) resins have been synthesized at different reaction temperature and pH values. Different molar ratios of melamine and formaldehyde were used to synthesize the corresponding resins. The prepared resin samples were characterized by using molecular weight determination viscometry and thermogravimetric analysis (TGA). The maximum percentage of solid content (69.7%) was obt...

2013
An Mao El Barbary Hassan Moon G. Kim

Low mole ratio urea-melamine-formaldehyde (UMF) resins synthesized with 2.5% and 5.0% melamine levels added at the beginning, middle, and end points of the first alkaline step of the typical urea-formaldehyde (UF) resin synthesis procedure were compared with typical UMF resins synthesized with melamine additions made at the final alkaline step. Various resin analysis, particleboard preparation,...

2013
Peng Hu Jing Wang Bo Hu Ling Lu Min Zhang

INTRODUCTION The current report detailed an investigation of melamine-linked urinary stones in children exposed to contaminated formula. MATERIAL AND METHODS A total of 1062 children fed with melamine-contaminated infant formula were screened for urinary stones. Sixty healthy children without melamine exposure were recruited as a control group. Ultrasonography of the urinary tract system was ...

Journal: :Iranian journal of kidney diseases 2009
Ankur Gupta Om Prakash Rathi Ambar Khaira Sanjay Kumar Agarwal

254 Iranian Journal of Kidney Diseases | Volume 3 | Number 4 | October 2009 addition, the pathological process in the affected pediatric cases is owing to the acute obstruction from melamine crystal that is unlikely to cause proteinuria. Therefore, the rational for screening for proteinuria in pediatric cases exposed to melamine is not supported. Some limitations of this work should be noted. F...

Journal: :Chemical communications 2011
Sunaina Singh Amit Aggarwal Christopher Farley Brian A Hageman James D Batteas Charles Michael Drain

Porphyrins appended with four rigid hydrogen bonding motifs on the meso positions were synthesized and self-assembled into a cofacial cage with four complementary bis(decyl)melamine units in dry solvents. The hydrocarbon chains on the melamine mediate the formation of nanofilms on surfaces as the solvent slowly evaporates.

Journal: :Beilstein Journal of Organic Chemistry 2007
Reji Thomas GU Kulkarni

The structure of a 1:1 complex of uracil and melamine obtained by cocrystallization has been investigated. The structure involves hydrogen bonded layers with apertures stacked along the a and b directions giving rise to channels, unlike the complex of cyanuric acid with melamine.

Journal: :The Analyst 2011
Liangqia Guo Jianhai Zhong Jinmei Wu FengFu Fu Guonan Chen Yongxuan Chen Xiaoyan Zheng Song Lin

We here report a novel fluorescent method for the detection of melamine based on the high fluorescence quenching ability of gold nanoparticles. The fluorescence was significantly quenched via fluorescence resonance energy transfer when fluorescein molecules were attached to the surface of gold nanoparticles by electrostatic interaction. Upon addition of melamine, the fluorescence was enhanced d...

Journal: :World journal of pediatrics : WJP 2011
Jian Gao Hong Xu Xin-Yu Kuang Wen-Yan Huang Nai-Qing Zhao Jia Rao Qiang-Ying Qian Xian-Ying Cheng Zhi-Min Feng Jing Xu Xin Zhang Xiang Wang

BACKGROUND Melamine-contaminated milk powder was the cause of the 2008 outbreak of urolithiasis in young children and infants in China, but the prognosis of these children remains unknown. We hypothesized that urolithiasis induced by melamine-contaminated milk powder may be associated with secondary renal injury. METHODS A total of 8335 children (≤6 years old) with a history of consuming mela...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید