Properties, Manufacturing, and Applications of MicroArrays of Gel-Immobilized Compounds and Cells on a Chip

Author(s):  
Andrei D. Mirzabekov
1977 ◽  
Vol 481 (2) ◽  
pp. 289-296 ◽  
Author(s):  
J. Čoupek ◽  
J. Labský ◽  
J. Kálal ◽  
J. Turková ◽  
O. Valentová

2002 ◽  
Vol 06 (08) ◽  
pp. 502-513 ◽  
Author(s):  
Matilte Halma ◽  
Fernando Wypych ◽  
Sueli M. Drechsel ◽  
Shirley Nakagaki

We report the synthesis, characterization and catalytic behavior of iron(III) porphyrins immobilized in layered double hydroxides (LDH). A combination of EPR, UV-visible spectroscopy and powder X-ray diffraction (PXRD) was used to characterize the products. Three different procedures were used to perform the immobilization of iron porphyrin: a) adsorption into the LDH powder, b) co-precipitation and c) rehydration of calcined LDH. Several different porphyrins ( Fe ( TSPP ), Fe ( TCPP ), Fe ( TPP ) and Fe ( TDFSPP )) were employed in the study. After characterization, the isolated powders were investigated in the oxidation reaction of cyclohexane by iodosylbenzene and hydrogen peroxide in heterogeneous catalysis in comparison to homogeneous media. Some of these immobilized compounds were very good catalysts for this oxidation reaction, stimulating the future investigation of other substrates.


2003 ◽  
Vol 33 (3) ◽  
pp. 249-267 ◽  
Author(s):  
Elzbieta Przyk ◽  
Anna Świtaj-Zawadka ◽  
Jolanta Szczygelska-Tao ◽  
Andrzej Przyjazny ◽  
Jan F. Biernat ◽  
...  

1997 ◽  
Vol 127 (3-4) ◽  
pp. 211-217 ◽  
Author(s):  
Piotr Konieczka ◽  
Magdalena Prokopowicz ◽  
Anna Skwierawska ◽  
Andrzej Przyjazny ◽  
Jacek Namieśnik ◽  
...  

2013 ◽  
Vol 85 (7) ◽  
pp. 1499-1513 ◽  
Author(s):  
Selvanathan Arumugam ◽  
Sara V. Orski ◽  
Ngalle Eric Mbua ◽  
Christopher McNitt ◽  
Geert-Jan Boons ◽  
...  

Three photo-click ligation strategies described in this account provide scientists with efficient and selective tools for derivatization of various molecules, polymers, and surfaces. Fast photochemical reactions that are utilized in these techniques permit spatiotemporal control of the process. The absence of activating reagents and catalysts, as well as compatibility with aqueous media, makes photo-click ligations suitable for biomedical applications. The first of these approaches relies on the photochemical decarbonylation of cyclopropenones to produce cyclooctynes. The latter undergo rapid catalyst-free strain-promoted azide–alkyne cycloaddition (SPAAC) to azide-tagged substrates. The second method is based on a very fast (>104 M–1 s–1) light-triggered hetero-Diels–Alder reaction and permits efficient derivatization of substrates bearing vinyl ether moiety. An even faster reaction between photochemically generated naphthoquinone methides (oNQMs) and thiols (~2 × 105 M–1 s–1) serves as a basis for a third method. This thiol photo-click chemistry allows for the selective derivatization of thiol-functionalized substrates or labeling of free cysteine residues in proteins. The thioether linkage produced by the reaction of oNQMs and a thiol is stable under ambient conditions, but can be cleaved by UV irradiation, regenerating free thiol. This feature permits the removal or replacement of immobilized compounds, as well as traceless substrate release.


BioTechniques ◽  
1999 ◽  
Vol 27 (3) ◽  
pp. 592-606 ◽  
Author(s):  
A.V. Vasiliskov ◽  
E.N. Timofeev ◽  
S.A. Surzhikov ◽  
A.L. Drobyshev ◽  
V.V. Shick ◽  
...  

2007 ◽  
Vol 388 (8) ◽  
pp. 1725-1731 ◽  
Author(s):  
A. Naganowska-Nowak ◽  
P. Konieczka ◽  
J. F. Biernat ◽  
J. Szczygelska-Tao ◽  
A. Przyjazny ◽  
...  

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