A heparin derivatives library constructed by chemical modification and enzymatic depolymerization for exploitation of non-anticoagulant functions

2020 ◽  
Vol 249 ◽  
pp. 116824
Author(s):  
Yang Ji ◽  
Yi Wang ◽  
Wen Zeng ◽  
Xiang Mei ◽  
Shanshan Du ◽  
...  
Keyword(s):  
Chemical Modification ◽  
Heparin Derivatives ◽  
Enzymatic Depolymerization

Photoconductivity in Vacuum Deposited Films of Silicon-Based Polymers

1996 ◽  
Vol 444 ◽  
Author(s):  
H. Okumoto ◽  
M. Shimomura ◽  
N. Minami ◽  
Y. Tanabe
Keyword(s):  
Charge Transfer ◽  
Chemical Modification ◽  
Electronic Transport ◽  
Hole Transport ◽  
Electron Acceptors ◽  
Oxygen Atmosphere ◽  
Dangling Bonds ◽  
Silicon Based ◽  
Deposited Films

AbstractSilicon-based polymers with σconjugated electrons have specific properties; photoreactivity for microlithography and photoconductivity for hole transport materials. To explore the possibility of combining these two properties to develop photoresists with electronic transport capability, photoconductivity of polysilanes is investigated in connection with their photoinduced chemical modification. Increase in photocurrent is observed accompanying photoreaction of poly(dimethylsilane) vacuum deposited films. This increase is found to be greatly enhanced in oxygen atmosphere. Such changes of photocurrent can be explained by charge transfer to electron acceptors from Si dangling bonds postulated to be formed during photoreaction.

Chemical modification of lignin-rich paper

1998 ◽  
Vol 13 (2) ◽  
pp. 124-131 ◽  
Author(s):  
Magnus Paulsson ◽  
Arthur J. Ragauskas
Keyword(s):  
Chemical Modification

Chemical modification of lignin-rich paper

1996 ◽  
Vol 11 (2) ◽  
pp. 109-114 ◽  
Author(s):  
Magnus Paulsson ◽  
Shiming Li ◽  
Knut Lundquist ◽  
Rune Simonson ◽  
Ulla Westermark
Keyword(s):  
Chemical Modification

Chemical modification of lignin-rich paper

1995 ◽  
Vol 10 (1) ◽  
pp. 62-67 ◽  
Author(s):  
Magnus Paulsson ◽  
Rune Sirnonson ◽  
Ulla Westermark
Keyword(s):  
Chemical Modification

Study of Chemical Modification of Some Starch Using the Amylographic Method

2008 ◽  
Vol 59 (1) ◽  
pp. 70-73
Author(s):  
Mihai Leonte ◽  
Traian Florea
Keyword(s):  
Chemical Modification ◽  
Heterogeneous Medium ◽  
Reaction Conditions

The amyl graphic behaviour for products like carboxymetil starch obtained in different reaction conditions was looked into. The procedure specific feature is the chemical modification that takes place in a heterogeneous medium though the reaction of the reactant starch particle in indestructible conditions.

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