Please wait, while we are loading the content...
Please wait, while we are loading the content...
Content Provider | World Health Organization (WHO)-Global Index Medicus |
---|---|
Author | Kur-Kowalska, Karolina Ziólczyk, Paulina Miller, Ewa Przybyt, Malgorzata Sowinski, Przemyslaw |
Description | Country affiliation: Poland Author Affiliation: Kur-Kowalska K ( Lodz University of Technology, Institute of General Food Chemistry, Stefanowskiego 4/10, 90-924 Lodz, Poland.); Przybyt M ( Lodz University of Technology, Institute of General Food Chemistry, Stefanowskiego 4/10, 90-924 Lodz, Poland.); Ziólczyk P ( Lodz University of Technology, Institute of General Food Chemistry, Stefanowskiego 4/10, 90-924 Lodz, Poland.); Sowinski P ( Centre of Molecular and Macromolecular Studies in Lodz, Sienkiewicza 112, 90-363 Lodz, Poland.); Miller E ( Lodz University of Technology, Institute of General Food Chemistry, Stefanowskiego 4/10, 90-924 Lodz, Poland. Electronic address: ewa.miller@p.lodz.pl.) |
Abstract | Preliminary results of a study of the interaction between 3-amino phenylboronic acid and glucose or ZnS:Cu quantum dots are presented in this paper. ZnS:Cu quantum dots with mercaptopropionic acid as a capping agent were obtained and characterized. Quenching of 3-amino phenylboronic acid fluorescence was studied by steady-state and timeresolved measurements. For fluorescence quenching with glucose the results of steady-state measurements fulfill Stern-Volmer equation. The quenching constants are increasing with growing pH. The decay of fluorescence is monoexponential with lifetime about 8.4 ns, which does not depend on pH and glucose concentration indicating static quenching. The quenching constant can be interpreted as apparent equilibrium constant of estrification of boronic group with diol. Quantum dots are also quenching 3-amino phenylboronic acid fluorescence. Fluorescence lifetime, in this case, is slightly decreasing with increasing concentration of quantum dots. The quenching constants are increasing slightly with pH's growth. Quenching mechanism of 3-amino phenylboronic acid fluorescence by quantum dots needs further experiments to be fully explained. |
ISSN | 13861425 |
Volume Number | 129 |
e-ISSN | 18733557 |
Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
Language | English |
Publisher | Elsevier |
Publisher Date | 2014-08-14 |
Publisher Place | Great Britain (UK) |
Access Restriction | Subscribed |
Subject Keyword | Boronic Acids Metabolism Copper Glucose Quantum Dots Sulfides Zinc Compounds Amination Chemistry Fluorescence Ultrastructure Spectrometry, Fluorescence Journal Article Discipline Spectroscopy |
Content Type | Text |
Resource Type | Article |
Subject Domain (in MeSH) | Inorganic Chemicals Carbohydrates Investigative Techniques Equipment and Supplies Physical Phenomena Chemical Phenomena |
Subject | Instrumentation Analytical Chemistry Atomic and Molecular Physics, and Optics Spectroscopy |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
Sl. | Authority | Responsibilities | Communication Details |
---|---|---|---|
1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
7 | National Digital Libarray of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
Loading...
|