Results 101 to 110 of about 85,577 (346)

Dynamics of end-linked star polymer structures

open access: yes, 2005
In this work we focus on the dynamics of macromolecular networks formed by end-linking identical polymer stars. The resulting macromolecular network can then be viewed as consisting of spacers which connect branching points (the cores of the stars).
A. Blumen   +5 more
core   +1 more source

Expanding the Chemical Space of Cyclic Polyphthalaldehyde via Post‐Functionalization

open access: yesAdvanced Science, EarlyView.
In this work, we developed a post‐functionalization approach to achieve water‐soluble cyclic polyphthalaldehyde (cPPA) polymers via click chemistry. ABSTRACT Cyclic polyphthalaldehydes (cPPAs) are hydrophobic cyclic polymers with stimuli‐responsive depolymerization property. The introduction of hydrophilic functionalities to cPPAs is challenging due to
Liting He   +5 more
wiley   +1 more source

Optimization and computational studies evaluating molecular dynamics of EDA cored polymeric dendrimer

open access: yesScientific Reports, 2020
In this work we report the results acquired from molecular dynamics simulations as well as the optimization of different generations of polyamidoamine dendrimer.
Malvika Chawla   +3 more
doaj   +1 more source

Cationic Dendrimer G2-S16 Inhibits Herpes Simplex Type 2 Infection and Protects Mice Vaginal Microbiome

open access: yesPharmaceutics, 2020
The G2-S16 polyanionic carbosilane dendrimer is a promising microbicide that inhibits HSV-2 infection in vitro and in vivo in mice models. This G2-S16 dendrimer inhibits HSV-2 infection even in the presence of semen.
Carlos Guerrero-Beltrán   +8 more
doaj   +1 more source

Coherent exciton-vibrational dynamics and energy transfer in conjugated organics [PDF]

open access: yes, 2018
Coherence, signifying concurrent electron-vibrational dynamics in complex natural and man-made systems, is currently a subject of intense study. Understanding this phenomenon is important when designing carrier transport in optoelectronic materials. Here,
Alfonso Hernandez, Laura   +9 more
core   +1 more source

High‐Efficiency TADF Dendritic Emitters Enabled by Synchronously Inhibiting Degenerated Triplet Excited States and Structural Relaxation Toward Solution‐Processed OLEDs with EQE Over 33%

open access: yesAdvanced Science, EarlyView.
Asymmetrical thermally activated delated fluorescence dendritic emitters are delicately constructed through symmetry breaking strategy, and near‐unity photoluminescence efficiency and excellent reverse intersystem crossing process are achieved via breaking the degeneracy of vibrational levels and boosting the spin flip of triplet excitons.
Xiaoxiang Yu   +9 more
wiley   +1 more source

Blockade of Human α7 Nicotinic Acetylcholine Receptor by α-Conotoxin ImI Dendrimer: Insight from Computational Simulations

open access: yesMarine Drugs, 2019
Nicotinic acetylcholine receptors (nAChRs) are ligand-gated ion channels that are involved in fast synaptic transmission and mediated physiological activities in the nervous system.
Xiaoxiao Xu   +4 more
doaj   +1 more source

Photosensitizer and peptide-conjugated PAMAM dendrimer for targeted in vivo photodynamic therapy

open access: yesInternational Journal of Nanomedicine, 2015
Challenges in photodynamic therapy (PDT) include development of efficient near infrared-sensitive photosensitizers (5,10,15,20-tetrakis(4-hydroxyphenyl)-21H,23H-porphine [PS]) and targeted delivery of PS to the tumor tissue.
Amreddy Narsireddy   +4 more
semanticscholar   +1 more source

Electronic coupling mechanisms and characteristics for optically nonlinear photoactive nanomaterials [PDF]

open access: yes, 2004
In a range of nanophotonic energy harvesting materials, resonance energy transfer (RET) is the mechanism for the intermolecular and intramolecular transfer of electronic excitation following the absorption of ultraviolet/visible radiation.
Andrews, David, Bradshaw, D.S.
core   +1 more source

Advances and Challenges in Micro/Nanocarrier‐Based Dermal Drug Delivery Systems for Acne Treatment

open access: yesAdvanced NanoBiomed Research, EarlyView.
Topical acne treatment faces challenges from skin barriers and complex causes. Micro/nanocarriers improve drug delivery by enhancing bioavailability, targeting, and duration. Combining carriers creates synergistic effects for systematic intervention.
Jintao Yang   +7 more
wiley   +1 more source

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