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61 Current news of Angewandte Chemierss
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Architecture is key: Biomolecule metal–organic hybrids with high bioactivity
Biomacromolecules incorporated into tailored metal–organic frameworks using peptide modulators are well shielded but highly active thanks to carefully tuned nanoarchitecture. As scientists report in the journal Angewandte Chemie, this strategy can be used to synthesize an “artificial cell” that ...
Molecular Containers for the Sequestration of Neurotransmitter Drugs in Water
Molecular containers that remove drugs, toxins, or malodorous substances from the environment are called sequestering agents. Scientists have developed a class of molecular containers that specifically sequester neurotransmitter antagonists. The barrel-shaped molecules called Pillar[n]MaxQ bind ...
Stable and Functional Dyes for Near-Infrared Fluorescence Imaging of Living Subjects
Scientists can monitor biomolecular processes in live tissue by noninvasive optical methods, such as fluorescence imaging. However, the fluorescent dyes used for that purpose are often rather unstable, and photobleaching, lack of specificity, and poor pharmacokinetics are recurrent issues. US ...
Ultrafast repeated staining and destaining of cell samples for tumor diagnostics
In the treatment of tumors, microenvironment plays an important role. It often contains immune cells that are so changed that they promote tumor growth. In the journal Angewandte Chemie, scientists have introduced a method by which cell samples from tumors and their surroundings can rapidly ...
A good indicator of dysregulation in live cells is a change in their RNA expression. MicroRNA (miRNA), a special type of RNA, is considered a biomarker for carcinogenic cells. A team of scientists from China has found a way to amplify miRNA in live tumor cells for bioimaging. As they report in ...
Chemotherapy and photodynamic therapy combined in a single drug to fight resistant cancers
Clinicians combat the drug resistances of some cancer types by using a combination of different drugs. To make this approach more effective, chemists have designed a chemical conjugate that can simultaneously attack several cellular targets using different modes of action. Such a single-drug ...
Total synthesis of tetrodotoxin
In Japan, puffer fish is considered a delicacy, but the tickle to the taste buds comes with a tickle to the nerves: fugu contains tetrodotoxin, a strong nerve toxin. In low doses, tetrodotoxin is shown in clinical trials to be a replacement for opioids for relieving cancer related pain. In the ...
Self-propelled onion-like microvehicle can attract, trap, and destroy biological threats
Antibiotics are more efficient when they can act on their target directly at the site of infestation, without dilution. In the journal Angewandte Chemie, American scientists describe a synthetic chemical trap that propels itself to its place of action in the body fluid and then lures the bacteria ...
New approach to selective chemotherapy
A novel drug, named “FerriIridium”, can simultaneously help diagnose and treat gastric cancer. The initially weakly active precursor (prodrug), based on an iridium-containing compound, is selectively activated only after reaching the interior of a tumor cell. This is possible because of the ...
Biomimetic hydrogel with photodynamic antimicrobial effect
Infections are a dreaded threat that can have fatal consequences after an operation, in the treatment of wounds, and during tissue engineering. Biomimetic hydrogels with “built-in” antimicrobial properties can significantly decrease this danger. In the journal Angewandte Chemie, scientists have ...