Results 151 to 160 of about 227,483 (326)

Bio‐Inspired, Zwitterionic Copolymers with Amphiphilic Character

open access: yesMacromolecular Rapid Communications, EarlyView.
Zwitterionic copolymers based on arginine‐derived monomers are produced by xanthate‐supported photo‐iniferter reversible‐addition‐fragmentation chain‐transfer polymerization. Experiments in relevant conditions show that the designed (co)polymers hardly interact with biologically relevant proteins and enzymes such as bovine serum albumine (BSA), fetal ...
Theresa M. Lutz   +4 more
wiley   +1 more source

Poly(2‐Oxazoline)‐Based Polyphotoacids: Synthesis, Solution Behavior, and Cellular Uptake of Multi‐Responsive Intracellular Transporters

open access: yesMacromolecular Rapid Communications, EarlyView.
The ability of photoacids to increase their acidity in response to light irradiation (excited state proton transfer, ESPT) makes them attractive building blocks for the design of stimuli‐responsive copolymers. In this contribution, we present highly biocompatible polyphotoacids based on poly(2‐oxazoline)s bearing 1‐hydroxypyrene units. Low cytotoxicity,
Leonid I. Kaberov   +7 more
wiley   +1 more source

Tunable diode laser heterodyne radiometer measurement of atmospheric absorption of solar radiation [PDF]

open access: yes
A tunable infrared heterodyne radiometer (TIHR) which uses a diode laser as the local oscillator is described as well as methods for the evaluation of the excess noise characteristics of the tunable diode laser.
Copeland, G. E., Harward, C. N.
core   +1 more source

Recent advances in Joule‐heating synthesis of functional nanomaterials for photo and electrocatalysis

open access: yesPhotoMat, EarlyView.
This paper presents a comprehensive overview of recent advancements in Joule‐heating synthesis of photo and electrocatalysts, emphasizing its benefits and applications. The objective is to offer an effective strategy for enhancing the diversity and performance of catalytic materials.
Jiaqi Li   +4 more
wiley   +1 more source

Cationic‐Hydrophilic Di‐Block Copolymers: Surface‐Shielded Vectors for Gene Delivery

open access: yesJournal of Polymer Science, Volume 63, Issue 6, Page 1419-1432, 15 March 2025.
This study develops synthetic polycationic di‐block carriers for nucleic acid (NA) delivery in gene therapy. Consisting of a cationic block and a hydrophilic block, these carriers efficiently form complexes with NAs and shield them with a protective bioinert layer, enhancing stability during circulation in the bloodstream while reducing undesirable ...
Eliška Hrdá   +4 more
wiley   +1 more source

The scale matters: A review on stimuli‐responsive microrobots categorized by scale for biomedical applications

open access: yesResponsive Materials, EarlyView.
We systematically summarize how each scale dictates fundamental choices in design feature, manufacturing technology, driving mechanism, and control strategy, which are inherently governed by scale‐dominated physical principles. Furthermore, the application of scale‐determined operation modes of microrobots across different stages of medical ...
Hang Yin   +3 more
wiley   +1 more source

Absolute frequency measurement in the 28 THz spectral region with a femtosecond laser comb and a long-distance optical link to a primary standard

open access: yes, 2004
A new frequency chain was demonstrated to measure an optical frequency standard based on a rovibrational molecular transition in the 28 THz spectral region accessible to a CO2 laser.
Amy-Klein, Anne   +6 more
core   +1 more source

Hybrid Multiphoton Lithography Scaffolds for Nanoscale Mechanobiological Assessment in Microscale Bone Models

open access: yesSmall, EarlyView.
This work presents a 3D hybrid tissue scaffold inspired by bone, incorporating collagen, fabricated using multiphoton lithography. The mechanical properties of collagen are tunable, and biodegradation allows for time‐dependent changes in geometry. The results demonstrate enhanced osteogenic differentiation of stem cells in our hybrid scaffolds.
Christoph Naderer   +7 more
wiley   +1 more source

Indocyanine Green–Inspired Polymeric Chromophores With Intrinsic Photostability for Near‐Infrared Imaging

open access: yesSmall, EarlyView.
Indocyanine green (ICG) is widely used for near‐infrared imaging but suffers from poor photostability. Here, an indocyanine green–inspired polymeric NIR chromophore is introduced, exhibiting intrinsically enhanced photostability and biocompatibility.
Su Bin Lee   +14 more
wiley   +1 more source

Orthogonal Tri‐Modular Coiled‐Coil Assembly for Programmable Multi‐Cargo Display on Escherichia coli Nissle 1917

open access: yesSmall, EarlyView.
A tri‐specific scaffold cell (TriSC) platform is engineered to enable programmable, reversible, and multiplex surface assembly through orthogonal and spontaneous coiled‐coil interactions. Independent targeting and therapeutic nanobodies are modularly recruited onto bacterial surfaces, allowing tunable combinatorial functionality.
Yong Joon Cho   +3 more
wiley   +1 more source

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