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SUMMARY:Nanoconfined Water and it's Anomalies - Professor Biman Bagchi\, I
 ndian Institute of Science - Bengaluru
DTSTART:20210505T090000Z
DTEND:20210505T100000Z
UID:TALK157594@talks.cam.ac.uk
CONTACT:Lisa Masters
DESCRIPTION:Water is often found at the surfaces of small nano-sized objec
 ts\, like micelles\, proteins and grooves of DNA\, and also in the interio
 r of small objects like reverse micelles and rocks. The nature of such con
 strained and confined water can be quite different from bulk water. A larg
 e number of experimental studies have explored the properties of such wate
 r in recent years\, often with interesting new results that have given ris
 e to a lot of discussions. For example\, dynamics of protein hydration lay
 er behaves differently under different probes.  In another example\, the v
 alue of the static dielectric constant (SDC) remains universally low for w
 ater in small confinements\, and it is different for different dielectric 
 boundaries. In our quest to develop a microscopic understanding\, we study
  the structure and dynamics of the water molecules in different layers of 
 nano-confined water. We apply our knowledge to understand dissociation of 
 insulin dimer\, and insulin hexamer.\nAcknowledgement : I thank Dr. Puja B
 anerjee\, Dr. Sayantan Mondal and Dr. Saumyak Mukherjee for collaborations
 . I thank DST-SERB (India) for an National Science Chair Professorship and
  DST-SERB for support.\n\nREFERENCES\n1.	Mondal\, S. and Bagchi\, B.\, Wat
 er Layer at Hydrophobic Surface: Electrically Dead but Dynamically Alive?.
  Nano Lett. 20 (12)\, p.8959 (2020).\n2.	Mondal\, S. and Bagchi\, B.\, Wat
 er in carbon nanotubes: Pronounced anisotropy in dielectric dispersion and
  its microscopic origin. J. Phys. Chem. Lett.\, 10(20)\, p.6287 (2019).\n3
 .	Mondal\, S.\, Acharya\, S. and Bagchi\, B.\, Altered polar character of 
 nanoconfined liquid water. Phys. Rev. Research\, 1(3)\, p.033145 (2019).\n
 4.	Mondal\, S. and Bagchi\, B.\, How different are the dynamics of nanocon
 fined water?. J. Chem. Phys.\, 152(22)\, p.224707 (2020).\n5.	Bagchi\, B.\
 , Water dynamics in the hydration layer around proteins and micelles. Chem
 . Rev.\, 105(9)\, p.3197 (2005).\n6.	Bagchi\, B.\, “Water in Chemistry a
 nd Biology : From Structure and Dynamics to Function” (Cambridge\, UK\, 
 2013)
LOCATION:Zoom: Meeting ID: 993 0985 5457 Passcode: 520993
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