نتایج جستجو برای: molecular imprinted polymer

تعداد نتایج: 723660  

2012
Mara Soares da Silva Teresa Casimiro

Molecular recognition processes found in nature have always inspired scientists to mimic these systems in synthetic materials such as molecular imprinted polymers. Selective receptors within a polymer have a huge range of applications such as in separation processes, analytical chemistry, sensors, catalysis, drug discovery and therapeutics. In this last area in particular, polymers are having a...

2012
H. Hashemi-Moghaddam F. Yahyazadeh

This work reports the preparation of molecularly imprinted polymer (MIP) particles for selective extraction and determination of silver ions from aqueous media. Various parameters were optimized, such as pH, time, concentration of sample and type of eluent for elution of silver from polymer. Also Interfering effect was investigated on the absorption of silver by molecularly imprinted polymer. A...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

درقسمت اول،یک حسگر ولتامتریک جدید برای اندازه گیری پیروکسیکام معرفی شده است.molecular imprinted polymer و non-imprinted polymer سنتز شدند. mipدر الکترودخمیر کربن به عنوان یک عنصر شناساگر و عامل پیش تغلیظ کننده برای اندازه گیری پیروکسیکام قرار داده شد. الکترود آماده شده برای اندازه گیری پیروکسیکام با استفاده از یک روش سه مرحله ای که شامل: استخراج آنالیت از محلول نمونه توسط الکترود، شتشوی الکترود...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2007
Ohad Kimhi Havazelet Bianco-Peled

The interactions between lysozyme-imprinted hydrogel and their template protein were studied using adsorption measurements, competitive adsorption experiments, and isothermal titration calorimetry (ITC). The results were compared to the interactions between the imprinted polymer and a reference protein, cytochrome c. Experimental adsorption isotherms and competitive adsorption studies detected ...

2017
Yawar Abbas Johan Bomer Marjolein Brusse-Keizer Kris Movig Paul van der Valk Marcel Pieterse Loes Segerink Wouter Olthuis Albert van den Berg

A cotinine sensor based on the dc resistance of a polymer composite films is presented. The composite film comprises a cotinine selective molecularly imprinted polymer and carbon nanotube particles. This polymer film is deposited over a gold interdigitated electrode array to measure its electrical resistance. The electrical resistance of the imprinted polymer changes upon its selective binding ...

Journal: :Chemical communications 2014
Man Zhao Cong Zhang Ying Zhang Xianzhi Guo Husheng Yan Huiqi Zhang

A facile and highly efficient approach to obtain narrowly dispersed hydrophilic and magnetic molecularly imprinted polymer microspheres with molecular recognition ability in a real biological sample as good as what they show in the organic solvent-based media is described for the first time.

Journal: : 2022

In the current study, piezosensors based on molecularly imprinted polyimides with imprints of potassium sorbate and sodium benzoate were obtained. Molecularly Imprinted Polymers (MIPs) synthesized using a polyimide non-covalent imprinting technique. It was established that use 0.1 g/mL template concentration at thermochemical stage led to formation maximum number molecular film surface. Using s...

Elham Moniri Homayon Ahmad Panahi, Jahanbakhsh Ghassemi Marjaneh Samadi Zadeh Simin Tavangari

In this study, aniline-formaldehyde polymer was synthesized and then modified with extra aniline as cross-linker in the presence and absence of Ni(II) as the template to produce Ion Imprinted Poly(Aniline-Formaldehyde) (IIPAF) and Non Imprinted Poly(Aniline-Formaldehyde)(NIPAF) The IIPAF was subjected to adsorption, preconcentration and determination of Ni(II) ion in envir...

2017
Soukaina Motia Nadia El Alami El Hassani Alassane Diouf Benachir Bouchikhi Nezha El Bari

Parabens are the antimicrobial molecules largely used in cosmetic products as a preservative agent. Among them, the methylparaben (MP) is the most frequently used ingredient in cosmetic preparations. Nevertheless, their potential dangers led to the development of sensible and reliable methods for their determination in environmental samples. Firstly, a sensitive and selective molecular imprinte...

Journal: :Biomaterials 2001
W J Wizeman P Kofinas

Non-covalent molecular imprinting of poly(allylamine hydrochloride) (PAA HCl) with glucose phosphate mono-sodium salt produced molecularly imprinted polymer (MIP) hydrogels capable of quantitative, isomerically specific binding of glucose. By ionic association of a template molecule, glucose phosphate mono-sodium salt, to the polymer prior to covalent crosslinking, MIP hydrogels were created wi...

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