• reactive materials
  • polyaldehyde having physically bound aldehyde functional groups which are thus bound without significant chemical reaction to substantially all said available surface areas, said polyaldehyde further having unbound aldehyde groups that are free to react with an have an affinity for aldehyde reactive materials, said unbound polyaldehyde groups being in an amount such that the affinity of the membrane for protein is characterized by enhanced specifity and total binding capacity. (google.ca)
  • Pharmaceuticals or other aldehyde reactive materials can be coupled to the microspheres. (google.com)
  • compounds
  • Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of 18 compounds belonging to chemical group (CG) 22. (europa.eu)
  • The compounds consist of two benzene rings connected via a few carbon atoms as the body, four acetylene units each carrying an alkyl group at their ends which represents the hands and legs, and a 1,3-dioxolane ring as the head. (wikipedia.org)
  • 3-Dimethylaminoacrolein can be used to introduce unsaturated and reactive C3 groups into CH-acidic and nucleophilic compounds. (wikipedia.org)
  • hydrogen
  • Aldehydes feature an sp 2 -hybridized, planar carbon center that is connected by a double bond to oxygen and a single bond to hydrogen. (wikipedia.org)
  • Because of resonance stabilization of the conjugate base, an α-hydrogen in an aldehyde (not shown in the picture above) is far more acidic , with a p K a near 17, compared to the acidity of a typical alkane (p K a about 50). (wikipedia.org)
  • Thus, aldehydes are prone to undergo hydrogen atom abstraction in the presence of free radicals, a fact accounts for the ease with which aldehydes undergo autoxidation . (wikipedia.org)
  • 20. A method according to claim 1 further including the step of reacting the recovered microspheres with a compound of the formula: ##STR4## where R l is hydrogen or a hydrocarbon group, R Z is hydroxyl or R is selected from aliphatic or aromatic and Z is amine, hydroxyl or carboxyl to form an adduct. (google.com)
  • in particular, the hydrogen atoms of the end group of carbohydrates should be present. (wikipedia.org)
  • functionality
  • The aldehyde functionality on all surfaces provides for effective covalent bonding to the membrane by amine containing materials. (google.ca)
  • mixture
  • 2. A method according to claim 1 in which the aldehyde is present in the mixture in an amount from 20% to 90% by weight. (google.com)
  • hydroxy group
  • Each of these rings subject to further isomerism, depending on the relative orientation of the anomeric hydroxy group. (wikipedia.org)
  • 8'-hydroxyabscisate cyclizes via nucleophilic attack of the existing ring by the 8' hydroxy group to interconvert with phaseate. (wikipedia.org)
  • reaction
  • In this step, the Sandmeyer reaction converts the primary amino group (NH2) to a diazonium leaving group (N2), which is subsequently replaced by iodine. (wikipedia.org)
  • wherein
  • 2. The method of claim 1, wherein the protein is fluorescently labeled and is selected from the group consisting of fluorescently-labeled antibodies, interleukins, antigens, cytokines, hormones, enzymes, and filamental proteins. (google.com)
  • 3. The method of claim 1, wherein the protein is non-labeled and is selected from the group consisting of antibodies, interleukins, antigens, cytokines, hormones, enzymes, and filamental proteins, wherein the method further comprises washing the suspension and adding a labeled fluorescently-labeled ligand which binds to the non-labeled protein to label the microbeads to which the non-labeled protein is bound, after washing the microbead suspension. (google.com)
  • 2. The method of claim 1 wherein said metal cation is selected from the group consisting of Ca +2 , Mn +2 , Mg +2 , Ba +2 , Sr +2 , and combinations thereof. (google.com)
  • 4. The method of claim 1 wherein said photoprotein labeled reagent comprises a photoprotein selected from the group consisting of aequorin, obelin, mitrocomin, clytin, and combinations thereof. (google.com)
  • 5 . The compound of claim 1 , wherein L-B comprises a maleimidyl or an N-hydroxysuccinimidyl group. (google.com)
  • 9 . The compound of claim 4 , wherein R 11 comprises a member of the group consisting of collagen, glycosaminoglycan, poly(-aspartic acid), poly(-L-lysine), poly(-lactic acid), poly-N-vinylpyrolidone and copolymers of poly(-lactic acid) and poly(-glycolic acid). (google.com)
  • 3. The peptide of claim 2 wherein an acetyl group is used for acylation. (google.com)
  • form
  • After the removal of protecting group, hydrophobic moieties were introduced into the side chain of poly (amino acid) segments of the block copolymer to control the hydrophilic/hydrophobic balance, allowing to form stable and monodispersive polymeric micelle. (nii.ac.jp)
  • Aldohexoses can have one or more of their hydroxyl groups replaced by hydrogens to form deoxyaldohexoses. (wikipedia.org)
  • The vinamidinium salt 1,1,5,5-tetramethyl-1,5-diazapentadienium chloride reacts with heterocycles bearing CH-acidic groups to form the corresponding dienamines which can be cylized with bases to form fused heteroaromatics, such as carbazoles, benzofurans or benzothiophenes. (wikipedia.org)
  • The C15 end of the molecule is then cleaved by an epoxycarotenoid epoxygenase to form xanthoxin, an aldehyde. (wikipedia.org)
  • Structure
  • By replacing the 1,3-dioxolane group with an appropriate ring structure, various other types of putians have been synthesized, e.g. (wikipedia.org)
  • Formylation of this structure was then achieved through using the organolithium reagent n-butyllithium followed by quenching with N,N-dimethylformamide (DMF) to create the aldehyde. (wikipedia.org)
  • 1,2-Ethanediol was added to this structure to protect the aldehyde using p-toluenesulfonic acid as a catalyst. (wikipedia.org)
  • reduction
  • Groups, such as alkenes and alkynes, that normally pose a problem for reduction by other means have no reactivity under these conditions. (wikipedia.org)
  • found
  • In the case of HCON i Pr 2 , the acidity of the formyl group was found to be very close to that of diisopropylamine (p K a ~ 36). (wikipedia.org)
  • Viniferal is a hydroxystilbenoid with an aldehyde group found in Vitis vinifera (grapevine). (wikipedia.org)
  • DNA uses the deoxynucleotides C, G, A, and T, while RNA uses the ribonucleotides (which have an extra hydroxyl(OH) group on the pentose ring) C, G, A, and U. Modified bases are fairly common (such as with methyl groups on the base ring), as found in ribosomal RNA or transfer RNAs or for discriminating the new from old strands of DNA after replication. (wikipedia.org)
  • chain
  • generally have 3 to 6 C atomsin a chain with an aldehyde or ketoneending and many -OH groups. (slideserve.com)
  • A variety of poly (ethylene glycol) (PEG) /polyamino acid block copolymers was synthesized by initiating the ring opening polymerization of alpha-amino acid N-carboxyanhydride (NCA) from primary amino group settled on the chain end of alpha-methoxy-omega-amino-poly (ethylene glycol). (nii.ac.jp)
  • feature
  • The cyclic hemiacetal isomers are more prevalent in solution and are of two types: the pyranoses, which feature six-membered C5O rings, and the furanoses, which feature five-membered C4O rings (with a pendant CH2OH group). (wikipedia.org)
  • shown
  • This enantioselection is due to the sterics of the two phenol groups in the six membered transition state as shown in Figure 3. (wikipedia.org)
  • step
  • In the first step, one of the two oxygens of the aldehyde hydrate attacks the sulfur of the sulfate ester. (wikipedia.org)
  • alpha
  • Aldehydes (except those without an alpha carbon, or without protons on the alpha carbon, such as formaldehyde and benzaldehyde) can exist in either the keto or the enol tautomer . (wikipedia.org)