Results 81 to 90 of about 7,204 (227)

Recent Trends in Bioorthogonal Click-Radiolabeling Reactions Using Fluorine-18

open access: yesMolecules, 2013
The increasing application of positron emission tomography (PET) in nuclear medicine has stimulated the extensive development of a multitude of novel and versatile bioorthogonal conjugation techniques especially for the radiolabeling of biologically ...
Doreen Pietzsch   +2 more
doaj   +1 more source

Development of Blue‐to‐Near‐Infrared rTCO–Caged Fluorogenic Probes for Click‐to‐Release Monitoring

open access: yesChemistry – A European Journal, EarlyView.
A series of fluorogenic rTCO‐caged click‐to‐release probes was prepared and evaluated both in a cuvette and in live cells. Some of the probes exhibited significant turn‐on and efficient fluorophore release spanning the blue‐to‐NIR region. A significant difference in the performance of the compounds in live cells was observed, highlighting the need for ...
Marek Chovanec   +4 more
wiley   +1 more source

Synthesis and Structure of Dimethyl 3,6-Diphenyl-1,2- Dihydro-1,2,4,5-Tetrazine-1,2-Dicarboxylate

open access: yes, 2010
Dimethyl 3,6-diphenyl-1,2-dihydro-1,2,4,5-tetrazine-1,2-dicarboxylate was prepared from methyl chloroformate and 3,6-diphenyl-1,2(or 1,4)-dihydro-1,2,4,5-tetrazine and its structure elucidated by X-ray analysis.
Xiao-Jing Lu, Guo-Wu Rao, Wei-Xiao Hu
core   +1 more source

Matthew effect: General design strategy of ultra‐fluorogenic nanoprobes with amplified dark–bright states in aggregates

open access: yesAggregate
Fluorescence imaging, a key technique in biological research, frequently utilizes fluorogenic probes for precise imaging in living systems. Tetrazine is an effective emission quencher in fluorogenic probe designs, which can be selectively damaged upon ...
Shinsuke Segawa   +12 more
doaj   +1 more source

Photocatalysis‐Triggered Click Reactions and Applications

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Photoclick chemistry offers broad applications ranging from materials science to bioconjugation, with precise spatiotemporal control over click reactions. Initially limited to UV activation, recent advances have extended photoclick processes to the visible and NIR regions thanks to the photocatalysis.
Margaux Walter   +2 more
wiley   +1 more source

Improved synthesis and properties of 3,6-diamino-1,2,4,5-tetrazine and 3,6-dihydrazino-1,2,4,5-tetrazine [PDF]

open access: yes, 1989
The chemical preparation of: (a) 3,6-diamino-1,2,4,5-tetrazine and (b) 3,6-dihydrazino-1,2,4,5-tetrazine is described. The explosive performance of the compounds was calculated with the BKW code.
Ott, Donald G.   +3 more
core  

Efficient Approaches to the Design of Six-Membered Polyazacyclic Compounds—Part 1: Aromatic Frameworks

open access: yesMolecules
This review summarises the possible applications and basic methodologies for the synthesis of six-membered polyazo heterocycles, namely, diazines, triazines, and tetrazines.
Elena A. Gyrgenova   +2 more
doaj   +1 more source

N1,N4,3,6-Tetramethyl-1,2,4,5-tetrazine-1,4-dicarboxamide

open access: yesActa Crystallographica Section E, 2012
The asymmetric unit of the title compound, C8H14N6O2, contains two independent molecules. In one molecule, the amide-substituted N atoms of the tetrazine ring deviate from the plane [maximum deviation = 0.028 (1) Å] through ...
Na-Bo Sun, Guo-Wu Rao, Qun Shen
doaj   +1 more source

SHP2 in Cancer: From Tumor Biology to Therapeutic Targeting

open access: yesMedicinal Research Reviews, EarlyView.
ABSTRACT SHP2 is a tyrosine phosphatase that mediates intracellular signaling downstream of transmembrane receptors regulated by a pair of src homology 2 (SH2) domains. Its overexpression and mutation are pivotal in driving tumor progression by influencing various cancer's fundamental characteristics, such as metastasis, DNA repair, angiogenesis ...
Maryam Jama   +2 more
wiley   +1 more source

Tetrazine- and trans -cyclooctene-functionalised polypept(o)ides for fast bioorthogonal tetrazine ligation

open access: yesPolymer Chemistry, 2020
Tetrazine- and trans -cyclooctene-functionalised polypeptides and polypetoids were prepared by ring-opening polymerisation of N -carboxyanhydrides using the respective functional initiators and shown to react in fast bioorthogonal tetrazine ligations.
Kerstin Johann   +8 more
openaire   +4 more sources

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