Molecular spectroscopic analyses of gelatin

Biocompatible and biodegradable materials are attractive for environmentally safe, flexible and biosustainable devices since they are nontoxic renewable materials with a low cost. Gelatin, a natural protein, is a promising biopolymer for photography, cosmetic manufacturing and food. In this paper, solution-processed natural gelatin was used as a gate dielectric for the fabrication of oxide field-effect transistors (FETs). Similarly to a polyelectrolyte, mobile ions can be generated in gelatin in air environment. A high gate specific capacitance larger than 0.93 µF/cm 2 was obtained in gelatin processed at low concentrations, due to the formation of electric-double-layers (EDLs). As gelatin films processed at a low concentration of 0.02 g/mL, the fabricated FETs showed excellent electrical performances. The average current on/off ratio and the mobility were estimated to be 1.36×10 5 and 33.2 cm 2 /Vs, respectively. The proposed technique may be application in the bioelectronics field, including biosensors and synaptic devices.

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“…and 3316 cm -1 are related to the strong protein amide I [28,29]. The amide I absorption represents C=O stretching and N-H stretching.…”

Section: Resultsmentioning

confidence: 99%

“…and 1243 cm -1 correspond to amide II and amide III, respectively [28,29], which arise from vibrations of N-H groups and stretch vibrations of C-N groups. These peaks in Fig.…”

Section: Resultsmentioning

confidence: 99%

Solution-processed natural gelatin was used as a gate dielectric for the fabrication of oxide field-effect transistors

Sun

Qian

et al. 2016

Organic Electronics

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“…Such class of computational work could be also utilized to model the behaviors of PVDF [22][23]. In our previous work we apply a different level of theory to study both natural and synthetic polymers and understand their behavior including structural, physical, chemical and vibrational characteristics [24][25][26][27][28][29]. In this study the semiempirical calculations at PM3 is utilized to study the physical parameters and the electronic properties of PVDX where X is F, Cl, Br and I.…”

Section: Introductionmentioning

confidence: 99%

Molecular modeling analyses for polyvinylidene X (X=F, Cl, Br and I)

2019

Biointerface Res Appl Chem

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Polyvinylidene (PVDF) substituted with different halogens (F, Cl, Br and I) has been studied theoretically by performing some semiempirical calculations at PM3 to obtain some physical parameters and improve the electronic properties. As a result of substitution bond length increases from 1.1083 Ǻ to 1.9921 Ǻ; bond angels decreased from 105.5120° to95.3750°; total dipole moment is increased from 0.0013 to 9.8242 Debye and the energy gap is decreased from 14.2929 to 6.1591eV. In addition, ESP results are indicated that the electro-negativity of the studied model molecules is increased upon substitution. The change in these calculated physical parameters reflects the reactivity of PVD.

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“…A model of B3LYP with four basis set was used to optimize and locate the energy minimum of the acetic acid molecule. Ibrahim and et al 23 studied molecular structure of gelatin by using Fourier transform infrared spectroscopy FTIR. The spectrum was subjected to deconvolution in order to elucidate the constituents of the molecular structure.…”

Section: Introductionmentioning

confidence: 99%

Computational investigation of the dissociative adsorption of dichloroacetylene (C2Cl2) on N functionalized carbon and carbon germanium (CGe) nanocone sheets in the gas phase and dimethyl sulfoxide

Najafi¹

2017

ACSi

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The possibility of dichloroacetylene-sensing on carbon nanocone sheet and carbon germanium nanocone sheet surfaces has been investigated. The effects of nitrogen functionalization and dimethyl sulfoxide on the adsorption of dichloroacetylene gas on carbon nanocone sheet and carbon germanium nanocone sheet surfaces were investigated. Results reveal that adsorption of dichloroacetylene on studied nanocone sheets were exothermic. Results show that, adsorption energy value of dichloroacetylene on carbon germanium nanocone sheet surface were more negative than corresponding values of carbon nanocone sheet. Results reveal that, N functionalization and dimethyl sulfoxide, increase and decrease the absolute adsorption energy value of dichloroacetylene on studied nanocone sheets, respectively. These results show that, there were good linearity dependencies between adsorption energy and orbital energy values of studied nanocone sheets.

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Molecular spectroscopic analyses of gelatin

Cited by 43 publications

References 20 publications

Solution-processed natural gelatin was used as a gate dielectric for the fabrication of oxide field-effect transistors

Solution-processed natural gelatin was used as a gate dielectric for the fabrication of oxide field-effect transistors

Molecular modeling analyses for polyvinylidene X (X=F, Cl, Br and I)

Computational investigation of the dissociative adsorption of dichloroacetylene (C2Cl2) on N functionalized carbon and carbon germanium (CGe) nanocone sheets in the gas phase and dimethyl sulfoxide

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