Results 201 to 210 of about 1,185,249 (285)

Hierarchical Peptide Functionalized Titania Nanotubes: Improving Stability, Promoting Osteogenesis, and Reducing Infection Risk

Small, EarlyView.
The study demonstrates a dual‐level modification of titania nanotube surfaces through the covalent grafting of Fmoc‐FF dipeptides, followed by a secondary self‐assembled layer of FF dipeptide. This hierarchical strategy significantly enhances coating density and structural integrity without compromising the nano‐topographical and biochemical cues ...
Ramesh Singh, Ketul C Popat
wiley   +1 more source

Identification and Discrimination of Sulfated and Unsulfated Gut‐Hormone Biomarkers in Human Serum by Nanopore

Small, EarlyView.
This study discriminates between sulfated and unsulfated cholecystokinin‐8 gut‐hormone forms at single‐molecule‐level resolution. Using an aerolysin nanopore embedded in a hybrid lipid‐polymer membrane, the system produces distinct electrical signatures enabling highly sensitive detection, even in 20% human serum.
Luca Iesu, Laurent Bacri, Juan Pelta, Benjamin Cressiot   +3 more
wiley   +1 more source

The Kinetics and Thermodynamics of the Amyloid Beta Peptide

Amyloids are a category of protein structures where many individual polypeptide chains fold to form long β-sheet fibrils. These are strongly associated to many of today's incurableand fatal diseases, such as Alzheimer's and Parkinson's disease. However, the exact cause of toxicity and disease initiation remains elusive.
openaire   +1 more source

Fluorination as a Molecular Design Parameter for Programming Peptide Nanocarriers

Small, EarlyView.
Controlled side‐chain fluorination programs the SA, morphology, and biological performance of amphiphilic fluoropeptide–RGD nanocarriers. A narrow fluorination window yields compact non‐amyloid fibrils with high loading capacity, pH‐triggered release, receptor‐specific uptake, low cytotoxicity, and enzymatic degradability.
Maurizio Iannuzzi, Holly Fiedler, Kilian Haoues, Suvrat Chowdhary, Hossein Batebi, Anil Kumar Sahoo, Andreas F. Thünemann, Boris Schade, Elisa Quaas, Roland R. Netz, Beate Koksch   +10 more
wiley   +1 more source

Photo‐Switched Catalytic Amyloids

Small, EarlyView.
Photo‐switched reversible hierarchical assembly of catalytic amyloid fibrils is accomplished by mixing an amphiphilic cross‐ß peptide with a merocyanine photo switch. The peptide monomers, comprising phenylalanine‐lysine repeats, do not self‐assemble in water because of the electrostatic repulsion.
Shubhra Kanti Bhaumik, Sisira Mambram Kunnath, Elad Arad, Einat Nativ‐Roth, Arunavo Chatterjee, Albert Batushansky, Nitzan Shauloff, Hanna Rapaport, Raz Jelinek   +8 more
wiley   +1 more source

A curated structural dataset of peptide-protein complexes reveals biases in existing datasets and principles of peptide binding. [PDF]

Protein Sci
Hamdani R, Delgado J, Serrano L.
europepmc   +1 more source

Mechanochemically Programmed, Oligomer‐Selective Amyloid Assembly via Axial Rotation

Small, EarlyView.
Tunable axial rotation mechanically redirects amyloid assembly without chemical additives. Low rotational speeds favor fibril maturation, whereas high‐speed rotation suppresses productive fibril amplification and biases the pathway toward oligomer‐enriched assemblies.
Seokbeom Roh, Eunji Song, Minwoo Bae, Da Yeon Cheong, Sechan Han, Taeha Lee, Dain Kang, Jae Eon Lee, Seung Pil Pack, Hyungbeen Lee, Insu Park, Gyudo Lee   +11 more
wiley   +1 more source

Higher Frontal Cortex Angiotensin Type 2 Receptor-Interacting Protein (ATIP) Levels Are Associated With a Lower Amyloid-Beta Burden in Postmortem Brains of Older Adults With Alzheimer's Disease. [PDF]

Aging Cell
Cosarderelioglu C, Kreimer S, Plaza-Rodriguez AI, Iglesias PA, Talbot CC, Siragy HM, Ubaida-Mohien C, Grodstein F, Ferrucci L, Bennett DA, Walston J, Abadir P.   +11 more
europepmc   +1 more source

Dual‐Component Spidroin‐Based Hydrogels: A Mechanically Tunable Platform for 2D and 3D Cell Culture

Small, EarlyView.
A dual‐component recombinant spider silk hydrogel platform was developed by combining NT2RepCT with a bioactive vitronectin‐functionalized spidroin domain. The hydrogels self‐assemble under physiological conditions, exhibit tunable mechanical properties, and support 2D and 3D cell culture, providing a versatile platform for mechanobiological studies ...
Sanna Korpela, Urmimala Chatterjee, Gabriele Greco, Benjamin Schmuck, Rakesh Kumar, Olga Shilkova, Cecilia Götherström, Anna Rising, Teemu O. Ihalainen   +8 more
wiley   +1 more source

Programmable Chirality Transfer: Seeding‐Directed Co‐Assembly of Functional Molecules With Amyloid Frameworks

Small, EarlyView.
Seeding‐directed co‐assembly enables efficient chirality transfer from chiral amyloid scaffold to achiral functional molecules. Controlled assembly pathways result in hierarchical hybrid supramolecular structures showing enhanced induced electronic circular dichroism (IECD) and/or vibrational circular dichroism (IVCD).
Aleksandra Kołodziejczyk, Joanna Mazurkiewicz, Andrzej J. Kałka, Agnieszka Kaczor   +3 more
wiley   +1 more source