Dersleri yüzünden oldukça stresli bir ruh haline sikiş hikayeleri bürünüp özel matematik dersinden önce rahatlayabilmek için amatör pornolar kendisini yatak odasına kapatan genç adam telefonundan porno resimleri açtığı porno filmini keyifle seyir ederek yatağını mobil porno okşar ruh dinlendirici olduğunu iddia ettikleri özel sex resim bir masaj salonunda çalışan genç masör hem sağlık hem de huzur sikiş için gelip masaj yaptıracak olan kadını gördüğünde porn nutku tutulur tüm gün boyu seksi lezbiyenleri sikiş dikizleyerek onları en savunmasız anlarında fotoğraflayan azılı erkek lavaboya geçerek fotoğraflara bakıp koca yarağını keyifle okşamaya başlar
Reach Us +44 1223 790975

GET THE APP

Chalcogen-richorganic Molecular Probes For Intended Neurodegenerative Disease Purposes | 57441
ISSN: 2161-0460

Journal of Alzheimers Disease & Parkinsonism
Open Access

Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Chalcogen-richorganic molecular probes for intended neurodegenerative disease purposes

5th International Conference on Alzheimer’s Disease & Dementia

David G Churchill

KAIST, Republic of Korea

ScientificTracks Abstracts: J Alzheimers Dis Parkinsonism

DOI: 10.4172/2161-0460.C1.021

Abstract
In the pursuit of advances in neurodegenerative disease research, our laboratory is currently working on chemical synthesis along three directions: protein phosphorylation and phosphate/phosphonylation detection, aromatic organoselenium-based chemistry, and MRI contrast agent technologies are all active areas in our chemical laboratory. In our organoselenium work, we are interested in making next-generation small molecular probes for the detection of reactive oxygen species. We are pursuing reversibility, as well as improved selectivity and sensitivity. This is undertaken in the context of also studying biothiols. Sulfur, selenium, or tellurium canbe placed within a ring, and within a π-delocalized manifold for chemical oxidation, or also as a substituent on the aromatic ring. This oxidation, as observed previously by M. Detty et al. (1990), imparts a significant electronic effect on the π-delocalized system and is enough to dramatically alter photophysical properties (“turn-on” fluorescence). The chemical oxidation of an “in-ring” selenium or tellurium also brings with it a possible concomitant sterical contribution that is also important. We have taken to functionalizing BODIPY systems–an extension of research from seeking new corrole chemistry. Recently, we have opened up to using other fluorophores; two general design parameters that are often exploited are (i) the aryl rotational group and (ii) the donor-acceptor photoinduced electron transfer (PET) mechanism. Based on previous results, we saw that profound differences can be imparted by substituting a thiophene for a phenyl group. Further, substituting Se in place of S, or adding gearing groups help alter the PET mechanism–a strategy that can be combined with chalcogen chemical oxidation/reduction. We often conduct many interference studies and cuvette assays, but also consider the probe when taken up into living cells, especially those of relevance to neurological diseases. Also, some of our work has ties with Fenton chemistry. New π-delocalized skeletons that we discover can be further exploited within the topic of molecular sensing. As always, synthesis is central to our work and emergent utility of these materials is being pursued.
Biography

Email: dchurchill@kaist.ac.kr

https://bahigox.fun/ https://bahisjet.fun/ https://bahsegel.fun/ https://betboo.fun/ https://betdoksan.xyz/ https://betebetgiris.xyz/ https://betexper.fun/ https://betgram.fun/ https://betkanyon.fun/ https://betkolik.fun/
Top