Polymethacrylic zinc porphyrin: A new approach to chiral recognition

2011 ◽  
Vol 71 (2) ◽  
pp. 204-209 ◽  
Author(s):  
Luigi Angiolini ◽  
Tiziana Benelli ◽  
Loris Giorgini
Keyword(s):  
Chiral Recognition ◽  
New Approach ◽  
Zinc Porphyrin

Chiral Recognition by CD-Sensitive Dimeric Zinc Porphyrin Host. 2. Structural Studies of Host−Guest Complexes with Chiral Alcohol and Monoamine Conjugates

2001 ◽  
Vol 123 (25) ◽  
pp. 5974-5982 ◽  
Author(s):  
Tibor Kurtán ◽  
Nasri Nesnas ◽  
Frank E. Koehn ◽  
Yuan-Qiang Li ◽  
Koji Nakanishi ◽  
...  
Keyword(s):  
Chiral Recognition ◽  
Structural Studies ◽  
Chiral Alcohol ◽  
Zinc Porphyrin

ChemInform Abstract: Chiral Recognition by CD-Sensitive Dimeric Zinc Porphyrin Host. Part 1. Chiroptical Protocol for Absolute Configurational Assignments of Monoalcohols and Primary Monoamines.

ChemInform ◽  
2010 ◽  
Vol 32 (40) ◽  
pp. no-no
Author(s):  
Tibor Kurtan ◽  
Nasri Nesnas ◽  
Yuan-Qiang Li ◽  
Xuefei Huang ◽  
Koji Nakanishi ◽  
...  
Keyword(s):  
Chiral Recognition ◽  
Zinc Porphyrin

Chiral recognition and chiral sensing using zinc porphyrin dimers

Tetrahedron ◽  
2002 ◽  
Vol 58 (14) ◽  
pp. 2803-2811 ◽  
Author(s):  
Takashi Hayashi ◽  
Toshihiro Aya ◽  
Masanori Nonoguchi ◽  
Tadashi Mizutani ◽  
Yoshio Hisaeda ◽  
...  
Keyword(s):  
Chiral Recognition ◽  
Zinc Porphyrin ◽  
Chiral Sensing ◽  
Porphyrin Dimers

Chiral Recognition by CD-Sensitive Dimeric Zinc Porphyrin Host. 1. Chiroptical Protocol for Absolute Configurational Assignments of Monoalcohols and Primary Monoamines

2001 ◽  
Vol 123 (25) ◽  
pp. 5962-5973 ◽  
Author(s):  
Tibor Kurtán ◽  
Nasri Nesnas ◽  
Yuan-Qiang Li ◽  
Xuefei Huang ◽  
Koji Nakanishi ◽  
...  
Keyword(s):  
Chiral Recognition ◽  
Zinc Porphyrin

Chiral Recognition of Amino Acids and Dipeptides by a Water-Soluble Zinc Porphyrin

2004 ◽  
Vol 43 (4) ◽  
pp. 1211-1213 ◽  
Author(s):  
Hiroyasu Imai ◽  
Hiroki Munakata ◽  
Yoshio Uemori ◽  
Naoki Sakura
Keyword(s):  
Amino Acids ◽  
Chiral Recognition ◽  
Water Soluble ◽  
Zinc Porphyrin ◽  
Soluble Zinc

Chiral recognition of amino acid esters by zinc porphyrin derivatives

2001 ◽  
Vol 25 (6) ◽  
pp. 801-806 ◽  
Author(s):  
Chuan Zhong Wang ◽  
Zhi Ang Zhu ◽  
Ying Li ◽  
Yun Ti Chen ◽  
Xin Wen ◽  
...  
Keyword(s):  
Amino Acid ◽  
Chiral Recognition ◽  
Amino Acid Esters ◽  
Zinc Porphyrin ◽  
Porphyrin Derivatives ◽  
Acid Esters

The O–C diagrams of minor planets − a new approach to modelling the rotation

1999 ◽  
Vol 173 ◽  
pp. 185-188
Author(s):  
Gy. Szabó ◽  
K. Sárneczky ◽  
L.L. Kiss
Keyword(s):  
Error Analysis ◽  
Time Dependence ◽  
Theoretical Work ◽  
Minor Planet ◽  
Minor Planets ◽  
New Approach ◽  
Preliminary Results ◽  
Ccd Observations

AbstractA widely used tool in studying quasi-monoperiodic processes is the O–C diagram. This paper deals with the application of this diagram in minor planet studies. The main difference between our approach and the classical O–C diagram is that we transform the epoch (=time) dependence into the geocentric longitude domain. We outline a rotation modelling using this modified O–C and illustrate the abilities with detailed error analysis. The primary assumption, that the monotonity and the shape of this diagram is (almost) independent of the geometry of the asteroids is discussed and tested. The monotonity enables an unambiguous distinction between the prograde and retrograde rotation, thus the four-fold (or in some cases the two-fold) ambiguities can be avoided. This turned out to be the main advantage of the O–C examination. As an extension to the theoretical work, we present some preliminary results on 1727 Mette based on new CCD observations.

A New Approach to the Demonstration of Oxidase-Localization Using Tannic Acid Or Catechin

1973 ◽  
Vol 31 ◽  
pp. 698-699
Author(s):  
V. Mizuhira ◽  
Y. Futaesaku
Keyword(s):  
Cross Section ◽  
Tannic Acid ◽  
Elastic Fiber ◽  
The Other ◽  
New Approach ◽  
Tissue Block ◽  
Active Reaction ◽  
The Cross

Previously we reported that tannic acid is a very effective fixative for proteins including polypeptides. Especially, in the cross section of microtubules, thirteen submits in A-tubule and eleven in B-tubule could be observed very clearly. An elastic fiber could be demonstrated very clearly, as an electron opaque, homogeneous fiber. However, tannic acid did not penetrate into the deep portion of the tissue-block. So we tried Catechin. This shows almost the same chemical natures as that of proteins, as tannic acid. Moreover, we thought that catechin should have two active-reaction sites, one is phenol,and the other is catechole. Catechole site should react with osmium, to make Os- black. Phenol-site should react with peroxidase existing perhydroxide.

Processing Immunoperoxidase Labeled Cell Monolayers and Cryostat Sesctions For Electron Microscopy

1985 ◽  
Vol 43 ◽  
pp. 714-715
Author(s):  
K. Chien ◽  
R. Van de Velde ◽  
I.P. Shintaku ◽  
A.F. Sassoon
Keyword(s):  
Cell Monolayer ◽  
Cell Types ◽  
Surface Antigens ◽  
Immunoperoxidase Method ◽  
Reaction Step ◽  
Hot Plate ◽  
Air Drying ◽  
New Approach ◽  
Cell Monolayers ◽  
Glass Slides

Immunoelectron microscopy of neoplastic lymphoma cells is valuable for precise localization of surface antigens and identification of cell types. We have developed a new approach in which the immunohistochemical staining can be evaluated prior to embedding for EM and desired area subsequently selected for ultrathin sectioning.A freshly prepared lymphoma cell suspension is spun onto polylysine hydrobromide- coated glass slides by cytocentrifugation and immediately fixed without air drying in polylysine paraformaldehyde (PLP) fixative. After rinsing in PBS, slides are stained by a 3-step immunoperoxidase method. Cell monolayer is then fixed in buffered 3% glutaraldehyde prior to DAB reaction. After the DAB reaction step, wet monolayers can be examined under LM for presence of brown reaction product and selected monolayers then processed by routine methods for EM and embedded with the Chien Re-embedding Mold. After the polymerization, the epoxy blocks are easily separated from the glass slides by heatingon a 100°C hot plate for 20 seconds.

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