Restricted access molecularly imprinted polymers obtained by bovine serum albumin and/or hydrophilic monomers’ external layers: a comparison related to physical and chemical properties

The Analyst ◽  
2015 ◽  
Vol 140 (22) ◽  
pp. 7768-7775 ◽  
Author(s):  
Mariane Gonçalves Santos ◽  
Gabriel de Oliveira Isac Moraes ◽  
Maurício Gustavo Nakamura ◽  
Álvaro José dos Santos-Neto ◽  
Eduardo Costa Figueiredo

RAMIP-BSA is the best material for sample preparation in terms of selectivity, protein exclusion, and adsorption.

2017 ◽  
Vol 270 ◽  
pp. 107-111
Author(s):  
Zuzana Andršová ◽  
Pavel Kejzlar

Many of currently manufactured components intended for automotive, must not only meet the requirements on functionality, but also considerable demands on the visual appearance. Parts are subjected to thorough inspection and suppliers are forced to deal with causes of a very slight visual defects. When examining the defects, it is necessary to use a whole range of advanced analytical methods and procedures previously used only for identification of the physical and chemical properties and structure of the material. This paper deals with several examples which have been solved. It focuses especially on the use of demanding metallographic sample preparation from components with surface defects, examining the defects on the cross-section using mainly microscopic techniques and determining the causes of their generation. These results then serve as a basis for modification of the technology and thus they are the tool for significant reduction of amount of NOK parts.


2010 ◽  
Vol 53 (4) ◽  
pp. 905-911 ◽  
Author(s):  
MinJie Guo ◽  
Ting Gao ◽  
Zhi Fan ◽  
JingXia Yao ◽  
JianJun Xia ◽  
...  

2020 ◽  
Vol 860 ◽  
pp. 297-302
Author(s):  
Idha Royani ◽  
Jumatul Rahmayani ◽  
Maimuna ◽  
Erry Koriyanti ◽  
Jorena ◽  
...  

The extraction process is a crucial part of the synthesis of Molecularly Imprinted Polymers (MIP). The process will have a significant impact on the number of its cavities that affects the polymers’ ability to recognize targets with the same physical and chemical properties as the analytes. Caffeine polymers have been prepared by the cooling-heating method using methacrylic acid (MAA) as a monomer, ethylene glycol dimethacrylate (EDMA) as a crosslinker, benzoyl peroxide (BPO) as an initiator, and chloroform as a solvent. The resulting caffeine polymer powder was extracted using chloroform, methanol / acetic acid (1:20), and methanol, respectively. Finally, the polymer powder is washed using the aquabidest, which is heated at 60°C. The results of FTIR, XRD, and SEM characterization showed that caffeine concentration was significantly reduced. The number of cavities obtained from caffeine MIP is 604 more than before extracted, which is 132 pieces.


2015 ◽  
Vol 1101 ◽  
pp. 256-260 ◽  
Author(s):  
Feng Feng ◽  
Zhi Min Liu ◽  
Zhi Gang Xu

β-Cyclodextrin shows good molecular recognition ability for its unique physical and chemical properties and suitable cavity structure. The selective recognition can be further improved if β-cyclodextrin combines with molecularly imprinted technique. In this paper, the novel β-cyclodextrin functional monomers were introduced. And the preparation and application of molecularly imprinted polymers based on β-cyclodextrin functional monomers were reviewed. The development trend of β-cyclodextrin molecularly imprinted polymers were also prospected.


RSC Advances ◽  
2015 ◽  
Vol 5 (128) ◽  
pp. 106197-106205 ◽  
Author(s):  
Cenjin Zhang ◽  
Yuzhi Wang ◽  
Junxia Guo ◽  
Yanjin Liu ◽  
Yigang Zhou

This paper discusses the construction of surface molecularly imprinted polymers (MIPs) based on modified chitosan (CS) nanoparticle carriers to recognize and separate bovine serum albumin (BSA, pI 4.9, MW 69.0 kDa) in aqueous solution.


Talanta ◽  
2020 ◽  
Vol 207 ◽  
pp. 120317 ◽  
Author(s):  
Ali Jahanban-Esfahlan ◽  
Leila Roufegarinejad ◽  
Rana Jahanban-Esfahlan ◽  
Mahnaz Tabibiazar ◽  
Ryszard Amarowicz

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