Results 91 to 100 of about 22,699 (249)

Thermally Activated Stereoinversion in Benzotrithiophene‐Based Supramolecular Polymers with Water as the Effector

Angewandte Chemie, Volume 137, Issue 52, December 22, 2025.
The chiral benzotrithiophene derivative 1 self‐assembles into helical supramolecular polymers whose helicity changes with water content. High water content induces a reversible double stereomutation, while low water content yields a single, stable one. Computational studies show two monomer conformations leading to opposite helices.
Lucía López‐Gandul, Alberto Fernández‐Alarcón, Nicolás M. Casellas, Cristina Naranjo, Joaquín Calbo, Enrique Ortí, Miguel García‐Iglesias, Luis Sánchez   +7 more
wiley   +2 more sources

Study on Interaction of Cationic Porphyrazine with Synthetic Polynucleotides

Analytical Cellular Pathology, 2013
Interactions of cationic tetrakis (N, N′, N″, N‴- tetramethyltetra-3, 4-pyridinoporphyrazinatozinc (II) (Zn (tmtppa)) with synthetic polynucleotides, poly (G-C) and poly (A-T), and calf thymus DNA have been characterized in 7.5 mM phosphate buffer of pH ...
Hamid Dezhampanah, Soghra Fyzolahjani
doaj   +1 more source

Localisation of the human hSuv3p helicase in the mitochondrial matrix and its preferential unwinding of dsDNA [PDF]

, 2002
We characterised the human hSuv3p protein belonging to the family of NTPases/helicases. In yeast mitochondria the hSUV3 orthologue is a component of the degradosome complex and participates in mtRNA turnover and processing, while in Caenorhabditis ...
Awiszus, K., Bartnik, E., Borowski, P., Dmochowska, A., Dziembowski, A., Minczuk, M., Papworth, M.A., Piwowarski, J., Schalinski, S., Stepien, P.P., Tokatlidis, K.   +10 more
core   +2 more sources

Ulvan‐Based Electrospun Nanofibres From Water Solutions: Process Conditions and Characterisations

Journal of Applied Polymer Science, Volume 143, Issue 4, January 20, 2026.
Ulvan‐based electrospun nanofibres. ABSTRACT Recently, marine biopolymers have attracted considerable attention due to their high biocompatibility and biodegradability, making them ideal candidates in biomedical fields such as wound care, drug delivery, and tissue engineering.
Jacopo Paini, Federica Zaccheria, Gianluca Ottolina, Claudia Vineis, Erica Savino, Alessio Varesano   +5 more
wiley   +1 more source

In Vitro Evidence for Oral Soft Tissue Regenerative Effects of a Polynucleotide–Hyaluronan Formulation

Clinical and Experimental Dental Research
Objectives We aimed to investigate the effects of a polynucleotide–hyaluronan (PN–HA) formulation on human palatal fibroblasts (HPFs) and oral epithelial cells (OKF6/TERT‐2) to assess its potential application in oral soft tissue reconstructive ...
Ina Mladenova, Xiaoqing Song, Cristina Nica, Anton Sculean, Maria B. Asparuhova   +4 more
doaj   +1 more source

The Double Face of Base Excision Repair: Preventing and Triggering Double‐Strand Breaks

BioEssays, Volume 48, Issue 1, January 2026.
Base excision repair is conserved from bacteria to man, robustly eliminating oxidized bases in DNA and reinserting the appropriate nucleotide to restore an intact double helix. Recent results describe conditions and mechanisms that misregulate long‐patch BER to generate double‐strand breaks, triggering chromosome fragmentation and cell death, altering ...
Susan M. Gasser
wiley   +1 more source

Concentration and isolation of DNA from biological fluids by agarose gel isotachophoresis

BioTechniques, 2005
Isotachophoresis is an electrophoretic method of separation of charged substances. The method is characterized by a discontinuous buffer system, constant velocity of separated molecules, and the distribution of separated components in the form of narrow ...
Valentina N. Kondratova, Ol'ga I. Serd'uk, Valery P. Shelepov, Anatoly V. Lichtenstein   +3 more
doaj   +1 more source

A Deoxyribonuclease from Calf Spleen. II. Mode of Action [PDF]

, 1957
When highly polymerized deoxyribonucleic acid is digested with pancreatic DNase and the digest further degraded with phosphodiesterase from intestinal mucose or snake venom, the mononucleotides formed are 5'-phosphates.
Koerner, James F., Sinsheimer, Robert L.
core  

The Landscape of Radiofrequency Technology for Skin Rejuvenation

Health Science Reports, Volume 9, Issue 1, January 2026.
ABSTRACT Background and Aims Aging skin is characterized by reduced tissue volume, weakened fibrous support, and increased laxity, leading to wrinkles and sagging. While surgical methods are effective, noninvasive techniques like radiofrequency (RF) have gained popularity due to their safety, minimal recovery time, and natural‐looking results.
Boyu Zhang, Xingyu Tan, Qi Zhang, Min Wu
wiley   +1 more source

Mycobacteriophage Mcgavigan Uses Noncanonical Bxb1‐Like Repressor for Heterotypic Superinfection Immunity

Journal of Basic Microbiology, Volume 66, Issue 1, January 2026.
ABSTRACT Mycobacteriophage Mcgavigan could be a promising candidate for use as a preventative agent against infections with Mycobacterium avium subsp. paratuberculosis. Bioinformatic analysis of the Mcgavigan genome revealed the presence of an operon containing a “Bxb1‐like” repressor.
Natali Shafer, Bradley E. Dubrule, Jeroen De Buck   +2 more
wiley   +1 more source