54 citations · 268 across the 11 of their papers we have counts for
11 papers
Dynamic Light Scattering Study of Temperature and pH Sensitive Colloidal Microgels
Valentina Nigro, Roberta Angelini, Monica Bertoldo +3
Microgel particles composed of Interpenetrated Polymer Networks (IPN) of poly(N-isopropylacrylamide) (PNIPAM) and poly(acrylic acid) (PAAc) dispersed in water have been investigate…
The role of polymer structure on water confinement in poly(N-isopropylacrylamide) dispersions
E. Buratti, L. Tavagnacco, M. Zanatta +8
Poly(N-isopropylacrylamide) (PNIPAM) is a synthetic polymer that is widely studied for its thermoresponsive character. However, recent works also reported evidence of a low tempera…
Thermoresponsivity of poly(N-isopropylacrylamide) microgels in water-trehalose solution and its relation to protein behavior
Benedetta Petra Rosi, Letizia Tavagnacco, Lucia Comez +8
Hypotheses: Additives are commonly used to tune macromolecular conformational transitions. Among additives, trehalose is an excellent bioprotectant and among responsive polymers, P…
Atomic scale investigation of the volume phase transition in concentrated PNIPAM microgels
M. Zanatta, L. Tavagnacco, E. Buratti +5
Combining elastic incoherent neutron scattering and differential scanning calorimetry, we investigate the occurrence of the volume phase transition (VPT) in very concentrated PNIPA…
Protein-like dynamical transition of hydrated polymer chains
L. Tavagnacco, M. Zanatta, E. Buratti +8
Combining elastic incoherent neutron scattering experiments at different resolutions with molecular dynamics simulations, we report the observation of a protein-like dynamical tran…
Molecular mechanisms driving the microgels behaviour: a Raman spectroscopy and Dynamic Light Scattering study
Valentina Nigro, Francesca Ripanti, Roberta Angelini +5
Responsive microgels based on poly(N-isopropylacrylamide) (PNIPAM) exhibit peculiar behaviours due to the competition between the hydrophilic and hydrophobic interactions of the co…
Relaxation dynamics, Softness and Fragility of Microgels with Interpenetrated Polymer Networks
Valentina Nigro, Barbara Ruzicka, Beatrice Ruta +4
Microgels are elastic and deformable particles with a hybrid nature between that of polymers and colloids and unconventional behaviours with respect to hard colloids. We investigat…
Evidence of a low-temperature dynamical transition in concentrated microgels
Marco Zanatta, Letizia Tavagnacco, Elena Buratti +5
A low-temperature dynamical transition has been reported in several proteins. We provide the first observation of a `protein-like' dynamical transition in nonbiological aqueous env…
Swelling of responsive-microgels: experiments versus models
Valentina Nigro, Roberta Angelini, Monica Bertoldo +1
Interpenetrated Polymer Network (IPN) microgels of PNIPAM and PAAc have been investigated and the experimental data have been compared with theoretical models from the Flory-Rehner…
Study of network composition in interpenetrating polymer networks of poly(N isopropylacrylamide) microgels:the role of poly(acrylic acid)
Valentina Nigro, Roberta Angelini, Benedetta Rosi +5
Hypothesis: The peculiar swelling behaviour of poly(N-isopropylacrylamide) (PNIPAM)-based responsive microgels provides the possibility to tune both softness and volume fraction wi…
Dynamical behavior of microgels of Interpenetrated Polymer Networks
Valentina Nigro, Roberta Angelini, Monica Bertoldo +3
Microgel suspensions of Interpenetrated Polymer Network (IPN) of PNIPAM and PAAc in DO, have been investigated through dynamic light scattering as a function of temperature, pH…