Fwd: [Fwd: Seminar by Prof. Vijay Kumar Challa on 14th March at 1600 hrs.]]
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Biswanath Bhoi
Mar 14, 2016, 1:56:14 AM3/14/16
to cr...@googlegroups.com, CRNTS, CRNTS-IMNANO IITB, office crnts office
---------- Forwarded message ----------
From: saif office <offic...@iitb.ac.in>
Date: Mon, Mar 14, 2016 at 11:24 AM
Subject: [Fwd: Seminar by Prof. Vijay Kumar Challa on 14th March at 1600 hrs.]]
To: bhoi.bi...@gmail.com
---------------------------- Original Message ----------------------------
Subject: [Fwd: Seminar by Prof. Vijay Kumar Challa on 14th March at 1600
hrs.]]
From: "saif office" <offic...@iitb.ac.in>
Date: Mon, March 14, 2016 11:16 am
To: atul....@iitb.ac.in
atul...@gmail.com
1143...@iitb.ac.in
aralis...@gmail.com
soumitr...@gmail.com
1243...@iitb.ac.in
--------------------------------------------------------------------------
Dear Students,
Kindly forward this to CRNTS Group email id and mark a cc copy to office.saif
Sophisticated Analytical Instrument Facility (SAIF) Office
Indian Institute Of Technology Bombay
Powai, Mumbai - 400 076
Tel No. 25767691 / 92
Website: www.rsic.iitb.ac.in
---------------------------- Original Message ----------------------------
Subject: Seminar by Prof. Vijay Kumar Challa on 14th March at 1600 hrs.]
From: "Rao Chebrolu V Pulla" <cp...@iitb.ac.in>
Date: Mon, March 14, 2016 11:05 am
To: offic...@iitb.ac.in
--------------------------------------------------------------------------
Dear Ms. Kalpana: Kindly forward the following lecture mail to all at
SAIF & CRNTS, since this lecture is based on nano materials. Thanks.
With best regards --- CP Rao
Speaker : Prof. Vijay Kumar Challa
Head, The Division of Physical Chemistry
Head, The Division of Biological Chemistry
Department of Chemistry
Department of Molecular and Cell Biology
The Institute of Materials Science
University of Connecticut, USA
Topic : Biological Materials: Non-toxic, functional,
fluorescent,protein nano particles for sensing
Day and date : Monday, 14th March, 2016
Time : 1600 hrs.
Venue : Room no. 350, Dept. of Chemistry
------------------------------------------------------------------------
Abstract:
Facile synthesis of white light-emitting, protein-based, metal-free,
stable and pH sensitive nanoparticles (GlowDots) as alternatives to
quantum dots are reported here. Controlled crosslinking of bovine serum
albumin (BSA) molecules resulted in the facile formation of nanoparticles,
which are then conjugated with three specific dyes in particular molar
ratios to produce white-emitting particles. Chemical novelty is that the
particle size, size distribution, stability, surface functions and
absorption/emission peak positions are under reaction control. The
particle size had a major size fraction of 36 nm (92 %) and minor size
fraction 5 nm (8 %) as observed by dynamic light scattering and size has
been confirmed by transmission electron microscopy. Particles were
thoroughly characterized by gel electrophoresis, electron microscopy, and
optical spectroscopy. These nanoparticles are biocompatible and non-toxic,
as they are derived from edible proteins. Due to their intense
white-emission, they can be interrogated at multiple wavelengths for
imaging and sensing applications. White fluorescence of GlowDots, for
example, is strongly sensitive to the pH over a range of 2-13, and changes
could be detected visually/quantitatively. The pH-induced emission color
change is reversible when the pH was restored back. These are the very
first reports of white-emitting nanoparticles that are bioderived and
highly sensitive to pH over a wide range.
---------------------------------------------------------------------------
All are invited
--
--------------
Dr. Chebrolu Pulla Rao, FNASc., FASc., FNA
JC Bose National Fellow
Institute Chair Professor, Department of Chemistry
Indian Institute of Technology, Bombay
Powai, Mumbai - 400 076, India
E-mail: cp...@iitb.ac.in; cp...@chem.iitb.ac.in;
cpra...@gmail.com
Tel (off): (+91-22) 2576 7162; Fax (off): (+91-22) 2572 3480
Tel (Resi): (+91-22) 2576 8162; 2572 6742
Sophisticated Analytical Instrument Facility (SAIF) Office
Indian Institute Of Technology Bombay
Powai, Mumbai - 400 076
Tel No. 25767691 / 92
Website: www.rsic.iitb.ac.in
From: saif office <offic...@iitb.ac.in>
Date: Mon, Mar 14, 2016 at 11:24 AM
Subject: [Fwd: Seminar by Prof. Vijay Kumar Challa on 14th March at 1600 hrs.]]
To: bhoi.bi...@gmail.com
---------------------------- Original Message ----------------------------
Subject: [Fwd: Seminar by Prof. Vijay Kumar Challa on 14th March at 1600
hrs.]]
From: "saif office" <offic...@iitb.ac.in>
Date: Mon, March 14, 2016 11:16 am
To: atul....@iitb.ac.in
atul...@gmail.com
1143...@iitb.ac.in
aralis...@gmail.com
soumitr...@gmail.com
1243...@iitb.ac.in
--------------------------------------------------------------------------
Dear Students,
Kindly forward this to CRNTS Group email id and mark a cc copy to office.saif
Sophisticated Analytical Instrument Facility (SAIF) Office
Indian Institute Of Technology Bombay
Powai, Mumbai - 400 076
Tel No. 25767691 / 92
Website: www.rsic.iitb.ac.in
---------------------------- Original Message ----------------------------
Subject: Seminar by Prof. Vijay Kumar Challa on 14th March at 1600 hrs.]
From: "Rao Chebrolu V Pulla" <cp...@iitb.ac.in>
Date: Mon, March 14, 2016 11:05 am
To: offic...@iitb.ac.in
--------------------------------------------------------------------------
Dear Ms. Kalpana: Kindly forward the following lecture mail to all at
SAIF & CRNTS, since this lecture is based on nano materials. Thanks.
With best regards --- CP Rao
Speaker : Prof. Vijay Kumar Challa
Head, The Division of Physical Chemistry
Head, The Division of Biological Chemistry
Department of Chemistry
Department of Molecular and Cell Biology
The Institute of Materials Science
University of Connecticut, USA
Topic : Biological Materials: Non-toxic, functional,
fluorescent,protein nano particles for sensing
Day and date : Monday, 14th March, 2016
Time : 1600 hrs.
Venue : Room no. 350, Dept. of Chemistry
------------------------------------------------------------------------
Abstract:
Facile synthesis of white light-emitting, protein-based, metal-free,
stable and pH sensitive nanoparticles (GlowDots) as alternatives to
quantum dots are reported here. Controlled crosslinking of bovine serum
albumin (BSA) molecules resulted in the facile formation of nanoparticles,
which are then conjugated with three specific dyes in particular molar
ratios to produce white-emitting particles. Chemical novelty is that the
particle size, size distribution, stability, surface functions and
absorption/emission peak positions are under reaction control. The
particle size had a major size fraction of 36 nm (92 %) and minor size
fraction 5 nm (8 %) as observed by dynamic light scattering and size has
been confirmed by transmission electron microscopy. Particles were
thoroughly characterized by gel electrophoresis, electron microscopy, and
optical spectroscopy. These nanoparticles are biocompatible and non-toxic,
as they are derived from edible proteins. Due to their intense
white-emission, they can be interrogated at multiple wavelengths for
imaging and sensing applications. White fluorescence of GlowDots, for
example, is strongly sensitive to the pH over a range of 2-13, and changes
could be detected visually/quantitatively. The pH-induced emission color
change is reversible when the pH was restored back. These are the very
first reports of white-emitting nanoparticles that are bioderived and
highly sensitive to pH over a wide range.
---------------------------------------------------------------------------
All are invited
--
--------------
Dr. Chebrolu Pulla Rao, FNASc., FASc., FNA
JC Bose National Fellow
Institute Chair Professor, Department of Chemistry
Indian Institute of Technology, Bombay
Powai, Mumbai - 400 076, India
E-mail: cp...@iitb.ac.in; cp...@chem.iitb.ac.in;
cpra...@gmail.com
Tel (off): (+91-22) 2576 7162; Fax (off): (+91-22) 2572 3480
Tel (Resi): (+91-22) 2576 8162; 2572 6742
Sophisticated Analytical Instrument Facility (SAIF) Office
Indian Institute Of Technology Bombay
Powai, Mumbai - 400 076
Tel No. 25767691 / 92
Website: www.rsic.iitb.ac.in
With Best Regards
Biswanath Bhoi
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