Results 101 to 110 of about 104,207 (331)

Endogenously Triggered DNAzyme‐Based Nanostructures for Gene‐Combined Therapy

open access: yesAdvanced NanoBiomed Research, EarlyView.
DNAzymes show great promise for gene regulation and therapeutic use via controlled release triggered by endogenous factors. This review summarizes recent advances in designing and constructing nanoscale platforms enabling endogenously triggered release of DNAzyme.
Theoneste Muyizere   +4 more
wiley   +1 more source

Ungesättigte Phosphinoxide für modulares Antikörper‐Rebridging und Einkomponenten Peptid‐Zyklisierung‐Biokonjugation

open access: yesAngewandte Chemie, EarlyView.
Wir berichten über die modulare Synthese ungesättigter PV‐Reagenzien ausgehend von Triethinyl‐Phosphinoxid mittels CuAAC. Diethinyl‐Triazolyl‐Phosphinoxide ermöglichen das schnelle, selektive und stabile Rebridging von Antikörper‐Disulfidbrücken, wie am Beispiel eines selektiv wirksamen Antikörper‐Wirkstoff‐Konjugats gezeigt wird.
Christian E. Stieger   +5 more
wiley   +1 more source

Der Ursprung der Bausteine des Lebens auf der Erde im Hadaikum

open access: yesAngewandte Chemie, EarlyView.
Der Ursprung des Lebens im Hadaikum erforderte die Bildung von Aminosäuren und Nukleosiden als Schlüsselmoleküle des Lebens. In einer oft postulierten stark reduzierenden Atmosphäre bilden sich HCN und seine Derivate robust als plausible Ausgangsstoffe. Aber HCN bildet sich nicht in der schwach reduzierenden Atmosphäre des Hadaikums.
Nikolai Diukarev   +6 more
wiley   +1 more source

Investigations into the characterization, degradation, and applications of biodegradable polymers by mass spectrometry

open access: yesMass Spectrometry Reviews, EarlyView., 2023
Abstract Biodegradable polymers have been getting more and more attention because of their contribution to the plastic pollution environmental issues and to move towards a circular economy. Nevertheless, biodegradable materials still exhibit various disadvantages restraining a widespread use in the market.
Paola Rizzarelli   +2 more
wiley   +1 more source

Synthesis of New 1,2,3-Triazole Derivatives of Uracil and Thymine with Potential Inhibitory Activity against Acidic Corrosion of Steels

open access: yesMolecules, 2013
Ten 1,4-disubstituted 1,2,3-triazoles were synthesized from one of 1-(azido-methyl)benzene, 1-(azidomethyl)-4-fluorobenzene, 1-(azidomethyl)-4-chlorobenzene, 1-(azidomethyl)-4-bromobenzene or 1-(azidomethyl)-4-iodobenzene, generated in situ from sodium ...
Mario A. Romero-Romo   +7 more
doaj   +1 more source

Unsaturated Phosphine Oxides for Modular Antibody Rebridging and Single Reagent Peptide‐Cyclization‐Bioconjugation

open access: yesAngewandte Chemie International Edition, EarlyView.
We report the modular synthesis of unsaturated P5 reagents starting from triethynyl‐phosphine oxide via CuAAC. Diethynyl‐triazolyl‐phosphine oxides enable rapid, selective and stable antibody disulfide rebridging, exemplified by the generation of a potent and selective ADC. In addition, triethynyl‐phosphine oxide enables a unique single reagent peptide‐
Christian E. Stieger   +5 more
wiley   +1 more source

In Plane Vibration of Pyrimidine and some Deuterated Pyrimidines [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 1991
On the basis of 102 assigned frequencies to in plane vibrations of pyrimidine, pyrimidine-2-d2, pyrimidine-2, 5-d2, pyrimidine-4,6-d2, pyrimidine-2,4,6-d3 and pyrimidine-d4, 35 valance force field constants including 14 principals and 21 interaction force constants are calculated.
openaire   +2 more sources

Zur Kenntniss der Pyrimidine [PDF]

open access: green, 1897
Siegfried Ruhemann, A. S. Hemmy
openalex   +1 more source

Ring transformations in reactions of pyrimidine and N-alkylpyrimidinium salts with nucleophile [PDF]

open access: yes
Paper IOn treatment with liquid ammonia at -33°C, the quaternary pyrimidinium salts, i.e. 1-methylpyrimidinium methyl sulfate, 1,2-dimethylpyrimidinium iodide, 1,4,6-trimethyl-pyrimidinium iodide and 1,2,4,6-tetramethylpyrimidinium iodide demethylate ...
Oostveen, E.A.
core   +1 more source

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