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Synthesis of p-and n-type Gels Doped with Ionic Charge Carriers.
Alveroglu E and Yilmaz Y
Nanoscale Research Letters, 5(3), 559-559 (2010)
Anna Milewska-Hendel et al.
Scientific reports, 9(1), 4724-4724 (2019-03-20)
Uptake of water and nutrients by roots affects the ontogenesis of the whole plant. Nanoparticles, e.g. gold nanoparticles, have a broad range of applications in many fields which leads to the transfer of these materials into the environment. Thus, the
Wei-Hai Chen et al.
ACS nano, 12(8), 7538-7545 (2018-07-04)
Zeolitic Zn2+-imidazolate cross-linked framework nanoparticles, ZIF-8 NMOFs, are used as "smart" glucose-responsive carriers for the controlled release of drugs. The ZIF-8 NMOFs are loaded with the respective drug and glucose oxidase (GOx), and the GOx-mediated aerobic oxidation of glucose yields
Myles Sedgwick et al.
Journal of the American Chemical Society, 134(29), 11904-11907 (2012-07-07)
The dramatic impact of differing environments on proton transfer dynamics of the photoacid HPTS prompted us to investigate these systems with two highly complementary methods: ultrafast time-resolved transient absorption and two-dimensional NMR spectroscopies. Both ultrafast time-resolved transient absorption spectroscopy and
Mayuko Morita et al.
Free radical research, 53(11-12), 1101-1113 (2019-11-07)
The unregulated oxidative modification of biological molecules has been implicated in the pathogenesis of various diseases, and the beneficial effects of antioxidants against detrimental oxidation have received much attention. Among the multiple oxidants, peroxyl radical and peroxynitrite play an important
Ron Simkovitch et al.
Journal of photochemistry and photobiology. B, Biology, 174, 1-9 (2017-07-25)
We used the photoacid 8-hydroxy-1,3,6-pyrenetrisulfonate (HPTS) that converts blue photons to acidic protons in water, with an efficiency of close to 100%, and determined that this treatment conferred changes to colony morphology of the plant pathogen Colletotrichum gloeosporioides. The time
Gurdeep S Minhas et al.
eLife, 7 (2018-07-04)
Mammals produce volatile odours that convey different types of societal information. In Homo sapiens, this is now recognised as body odour, a key chemical component of which is the sulphurous thioalcohol, 3-methyl-3-sulfanylhexan-1-ol (3M3SH). Volatile 3M3SH is produced in the underarm
Joseph E Thomaz et al.
The journal of physical chemistry. B, 121(17), 4544-4553 (2017-04-12)
Proton transfer in the nanoscopic water channels of polyelectrolyte fuel cell membranes was studied using a photoacid, 8-hydroxypyrene-1,3,6-trisulfonic acid sodium salt (HPTS), in the channels. The local environment of the probe was determined using 8-methoxypyrene-1,3,6-trisulfonic acid sodium salt (MPTS), which
Sadat Hasan et al.
Lab on a chip, 19(3), 403-409 (2019-01-04)
We present a highly efficient microfluidic fluorescence lifetime-activated droplet sorting (FLADS) approach as a novel technology for droplet manipulation in lab-on-a-chip devices. In a proof-of-concept study, we successfully applied the approach to sort droplets containing two different fluorescent compounds on
Angel Resendez et al.
Organic & biomolecular chemistry, 15(45), 9727-9733 (2017-11-14)
To address carbohydrates that are commonly used in biomedical applications with low binding affinities for boronic acid based detection systems, two chemical modification methods were utilized to increase sensitivity. Modified carbohydrates were analyzed using a two component fluorescent probe based
Esther van Dam et al.
Cell metabolism, 31(4), 710-725 (2020-03-21)
High-sugar diets cause thirst, obesity, and metabolic dysregulation, leading to diseases including type 2 diabetes and shortened lifespan. However, the impact of obesity and water imbalance on health and survival is complex and difficult to disentangle. Here, we show that
Yuri N Antonenko et al.
Biochimica et biophysica acta, 1848(4), 995-1004 (2015-01-21)
Monensin is a carrier of cations through lipid membranes capable of exchanging sodium (potassium) cations for protons by an electroneutral mechanism, whereas its ethyl ester derivative ethyl-monensin is supposed to transport sodium (potassium) cations in an electrogenic manner. To elucidate
Functional importance of the oligomer formation of the cyanobacterial H+ pump Gloeobacter rhodopsin.
Azusa Iizuka et al.
Scientific reports, 9(1), 10711-10711 (2019-07-26)
Many microbial rhodopsins self-oligomerize, but the functional consequences of oligomerization have not been well clarified. We examined the effects of oligomerization of a H+ pump, Gloeobacter rhodopsin (GR), by using nanodisc containing trimeric and monomeric GR. The monomerization did not
R L A Timmer et al.
The journal of physical chemistry. A, 114(5), 2091-2101 (2010-01-22)
We studied proton transfer in ice samples containing the photoacid 8-hydroxypyrene-1,3,6-trisulfonic acid and the base sodium formate using femtosecond pump-probe spectroscopy. Pump pulses, centered at a wavelength of 400 nm, electronically excited the photoacid molecules which released their protons. These
Dong Jae Kim et al.
Small (Weinheim an der Bergstrasse, Germany), 14(40), e1802520-e1802520 (2018-08-22)
Surface-enhanced Raman scattering (SERS) provides a dramatic increase of Raman intensity for molecules adsorbed on nanogap-rich metal nanostructures, serving as a promising tool for molecular analysis. However, surface contamination caused by protein adsorption and low surface concentration of small target
Simon Lee et al.
Molecular therapy. Methods & clinical development, 7, 60-73 (2017-10-17)
New methods to produce large numbers of myeloid progenitor cells, precursors to macrophages (MΦs), by maintaining Hoxb8 transcription factor activity
Boiko Cohen et al.
The journal of physical chemistry. B, 115(23), 7637-7647 (2011-04-12)
We report on femto- to nanosecond studies of the excited state intermolecular proton transfer (ESPT) reaction of trisodium 8-hydroxypyrene-1,3,6-trisulfonate (pyranine, HPTS) with the human serum albumin (HSA) protein. The formed robust 1:1 complexes (K(eq) = (2.6 ± 0.1) × 10(6)
Ye Yang et al.
Advanced materials (Deerfield Beach, Fla.), 27(32), 4725-4731 (2015-07-17)
A dynamically adjustable colloidal assembly technique is presented, which combines magnetic and acoustic fields to produce a wide range of colloidal structures, ranging from discrete colloidal molecules, to polymer networks and crystals. The structures can be stabilized and dried, making
Ammonia uptake by transmembrane pH gradient poly(isoprene)-block-poly(ethylene glycol) polymersomes.
Aaron C Schmidt et al.
Soft matter, 16(11), 2725-2735 (2020-03-03)
Transmembrane pH gradient poly(isoprene)-block-poly(ethylene glycol) (PI-b-PEG) polymersomes were investigated for their potential use in the detoxification of ammonia, a metabolite that is excessively present in patients suffering from urea cycle disorders and advanced liver diseases, and which causes neurotoxic effects
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María Nieves Aranda-Sicilia et al.
Biochimica et biophysica acta, 1818(9), 2362-2371 (2012-05-04)
KEA genes encode putative K(+) efflux antiporters that are predominantly found in algae and plants but are rare in metazoa; however, nothing is known about their functions in eukaryotic cells. Plant KEA proteins show homology to bacterial K(+) efflux (Kef)
Kiyofumi Katagiri et al.
Small (Weinheim an der Bergstrasse, Germany), 7(12), 1683-1689 (2011-05-14)
A new approach to control the release of encapsulated materials from liposomes by using thermosensitive block copolymers and magnetic nanoparticles is reported. Hydrophobized Fe(3) O(4) nanoparticles are synthesized via the hydrothermal process, and can be incorporated into liposomal membranes by
Huahua Fan et al.
Nanoscale, 11(21), 10504-10510 (2019-05-23)
Materials with circularly polarized luminescence (CPL) are currently attracting great interest in view of their potential applications. Here, we reported self-assembled organic nanotubes with switchable CPL performance. A photoacid, 8-hydroxy-1,3,6-pyrenetrisulfonate (HPTS), was co-assembled with an amino-terminated dialkyl glutamide (LG or
Ana T López-Jiménez et al.
PLoS pathogens, 14(12), e1007501-e1007501 (2019-01-01)
Phagocytic cells capture and kill most invader microbes within the bactericidal phagosome, but some pathogens subvert killing by damaging the compartment and escaping to the cytosol. To prevent the leakage of pathogen virulence and host defence factors, as well as
Giorgio Fracasso et al.
Experimental biology and medicine (Maywood, N.J.), 244(4), 314-322 (2019-01-12)
Our results offer the potential for straightforward, additive-free, and molecularly simple routes to building complex bioreactors based on in vitro transcription-translation systems and lipid vesicles.
Abhishek Saha et al.
Organic & biomolecular chemistry, 17(23), 5779-5788 (2019-05-29)
Recently, synthetic anion transporters have gained considerable attention because of their ability to disrupt cellular anion homeostasis and promote cell death. Herein, we report the development of bis(iminourea) derivatives as a new class of selective Cl- ion carrier. The bis(iminourea)
Peter Tiefenboeck et al.
ACS nano, 11(8), 7758-7769 (2017-08-05)
Microinjection is extensively used across fields to deliver material intracellularly. Here we address the fundamental aspects of introducing exogenous organelles into cells to endow them with artificial functions. Nanocarriers encapsulating biologically active cargo or extreme intraluminal pH were injected directly
Wooseok Heo et al.
Physical chemistry chemical physics : PCCP, 19(28), 18243-18251 (2017-07-12)
Detailed molecular dynamics simulations of an acid-base reaction have been the subject of extensive investigations. Here we report the excited state proton transfer dynamics of pyranine (8-hydroxypyrene-1,3,6-trisulfonic acid, HPTS) in acetate buffer by time-resolved fluorescence (TF) and quantum mechanical/effective fragment
Yuuka Fukui et al.
Journal of biomaterials science. Polymer edition, 28(10-12), 1010-1024 (2017-03-10)
We intended to create a free-standing and organic-inorganic hybrid colloidal membrane. The colloidal membrane was assembled from polymeric capsules, which were prepared by coating of polymer layers over a liposome (liponanocapsules). In this study, two approaches were employed for mineralization
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