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Search for "morphological changes" in Full Text gives 78 result(s) in Beilstein Journal of Nanotechnology.

Tailoring of physical properties of RF-sputtered ZnTe films: role of substrate temperature

  • Kafi Devi,
  • Usha Rani,
  • Arun Kumar,
  • Divya Gupta and
  • Sanjeev Aggarwal

Beilstein J. Nanotechnol. 2025, 16, 333–348, doi:10.3762/bjnano.16.25

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  • accountable for morphological changes on the surface of ZnTe films grown on quartz substrate at different substrate temperatures. Values of b equal to 1, 2, 3, and 4 represent four surface growth mechanisms, that is, viscous flow, evaporation–condensation, volume diffusion, and surface diffusion, respectively
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Published 05 Mar 2025

Liver-targeting iron oxide nanoparticles and their complexes with plant extracts for biocompatibility

  • Shushanik A. Kazaryan,
  • Seda A. Oganian,
  • Gayane S. Vardanyan,
  • Anatolie S. Sidorenko and
  • Ashkhen A. Hovhannisyan

Beilstein J. Nanotechnol. 2024, 15, 1593–1602, doi:10.3762/bjnano.15.125

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  • . Histological analysis of morphological changes in liver tissue In the histological examination of the toxic effects of the agents in all groups, a characteristic architecture typical of the liver was observed, with preserved lobular structure and radial arrangement of hepatocytes, as well as normal blood
  • activity, membrane leakage, and morphological changes. Toxic NPs can adversely affect cell viability, proliferation rate, and metabolic activity; also, they can reduce the therapeutic efficiency of the treatment [55]. The toxicity of NPs on biological entities fundamentally depends on the characteristics
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Published 11 Dec 2024

Polymer lipid hybrid nanoparticles for phytochemical delivery: challenges, progress, and future prospects

  • Iqra Rahat,
  • Pooja Yadav,
  • Aditi Singhal,
  • Mohammad Fareed,
  • Jaganathan Raja Purushothaman,
  • Mohammed Aslam,
  • Raju Balaji,
  • Sonali Patil-Shinde and
  • Md. Rizwanullah

Beilstein J. Nanotechnol. 2024, 15, 1473–1497, doi:10.3762/bjnano.15.118

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Published 22 Nov 2024

Direct electron beam writing of silver using a β-diketonate precursor: first insights

  • Katja Höflich,
  • Krzysztof Maćkosz,
  • Chinmai S. Jureddy,
  • Aleksei Tsarapkin and
  • Ivo Utke

Beilstein J. Nanotechnol. 2024, 15, 1117–1124, doi:10.3762/bjnano.15.90

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  • varying compositions of the deposit and internal inhomogeneities such as the formation of a layered structure consisting of a pure silver layer at the interface to the substrate covered by a deposit layer with low silver content. Imaging after the deposition process revealed morphological changes such as
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Published 26 Aug 2024

Atomistic insights into the morphological dynamics of gold and platinum nanoparticles: MD simulations in vacuum and aqueous media

  • Evangelos Voyiatzis,
  • Eugenia Valsami-Jones and
  • Antreas Afantitis

Beilstein J. Nanotechnol. 2024, 15, 995–1009, doi:10.3762/bjnano.15.81

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  • their energy interactions. The morphological changes in the NPs are measured using both atomic parameters, such as the coordination number and the Berry parameter, and cluster parameters, such as the X-ray powder diffraction pattern and the asphericity parameter. Furthermore, we extract qualitative
  • rapid cooling. Both Au and Pt bulk materials share the same FCC unit cell structure. The primary goal was to discern the morphological changes occurring in the NPs. An additional aim was to quantify the influence of temperature, chemical composition, and NP size on these transformations. The NPs were
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Published 07 Aug 2024

The effect of age on the attachment ability of stick insects (Phasmatodea)

  • Marie Grote,
  • Stanislav N. Gorb and
  • Thies H. Büscher

Beilstein J. Nanotechnol. 2024, 15, 867–883, doi:10.3762/bjnano.15.72

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  • tests, all p < 0.360) and from week 2 to weeks 4–6 (Tukey’s tests, all p < 0.044) were significant. The traction forces of the remaining combinations did not differ significantly from each other (Tukey’s tests, all p > 0.06). Morphological changes Macroscopic changes of attachment devices All tarsi of S
  • /Dunn’s post-hoc test with Holm correction. Boxes cover the interquartile range (IQR) from 25th to 75th percentile, the black line indicates the median. Whiskers extend to 1.5·IQR. Morphological changes of tarsi during ageing. (A–D) Full tarsi, ventral views. (A) Young adult female with fully inflated
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Published 15 Jul 2024

Cholesterol nanoarchaeosomes for alendronate targeted delivery as an anti-endothelial dysfunction agent

  • Horacio Emanuel Jerez,
  • Yamila Roxana Simioni,
  • Kajal Ghosal,
  • Maria Jose Morilla and
  • Eder Lilia Romero

Beilstein J. Nanotechnol. 2024, 15, 517–534, doi:10.3762/bjnano.15.46

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  • embryogenesis [53]. EndMT is observed under inflammatory conditions similar to the environment generated during sepsis or pathological processes such as renal, cardiac and pulmonary fibrosis, and cancer [54][55][56][57]. In the mild inflation model, LPS induced in HUVECs morphological changes compatible with
  • ratio (Figure 12). Dexamethasone partly reduced the morphological changes induced on HUVECs but did not affect the IL-6/IL-8 production. In the pronounced inflammation model, the morphological changes experienced by HUVECs were not reversed by any treatment (data not shown). Discussion The in vitro anti
  • of this research suggest that the endocytosis of one specific formulation, nanoARC-Chol(ALN), by irritated HUVECs in the mild inflammation model, was beneficial. The same as dexamethasone, nanoARC-Chol(ALN) was partly capable of reducing the morphological changes caused by LPS, potentially caused by
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Published 13 May 2024

Heat-induced morphological changes in silver nanowires deposited on a patterned silicon substrate

  • Elyad Damerchi,
  • Sven Oras,
  • Edgars Butanovs,
  • Allar Liivlaid,
  • Mikk Antsov,
  • Boris Polyakov,
  • Annamarija Trausa,
  • Veronika Zadin,
  • Andreas Kyritsakis,
  • Loïc Vidal,
  • Karine Mougin,
  • Siim Pikker and
  • Sergei Vlassov

Beilstein J. Nanotechnol. 2024, 15, 435–446, doi:10.3762/bjnano.15.39

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  • process, fragmentation in either adhered or suspended parts can dominate. Experiments were supported by finite element method and molecular dynamics simulations. Keywords: diffusion; finite element method; heat treatment; molecular dynamics simulations; morphological changes; scanning electron microscopy
  • . However, during prolonged heat treatment (lasting minutes or more), surface atom diffusion can lead to morphological changes in NWs even at temperatures several hundred degrees below the melting point of the material [26][27]. Sintering of Ag and Au NWs at intersections can occur at temperatures as low as
  • pentagonal structure is preserved even for small fragments of NWs that were split as a result of heat treatment as shown in Figure 7 (note that the fragments are kept in place due to contact with the thin carbon membrane of the TEM grid). These findings suggests that heat-induced morphological changes in Ag
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Published 22 Apr 2024

Graphene removal by water-assisted focused electron-beam-induced etching – unveiling the dose and dwell time impact on the etch profile and topographical changes in SiO2 substrates

  • Aleksandra Szkudlarek,
  • Jan M. Michalik,
  • Inés Serrano-Esparza,
  • Zdeněk Nováček,
  • Veronika Novotná,
  • Piotr Ozga,
  • Czesław Kapusta and
  • José María De Teresa

Beilstein J. Nanotechnol. 2024, 15, 190–198, doi:10.3762/bjnano.15.18

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  • nanopatterning, we have found significant morphological changes induced in the SiO2 substrate even at low electron dose values (<8 nC/μm2). We demonstrate that graphene etching and topographical changes in SiO2 substrates can be controlled via electron beam parameters such as dwell time and dose. Keywords
  • from graphene etching, the morphological changes in the SiO2 surface are visible in AFM and CPEM results for lines that were extended beyond the flake area (see Figure 1D). The experiments confirm that water-assisted FEBIE is a fast and direct technique to selectively remove graphene. The process must
  • substrate with the same dwell time values (1, 10, and 100 μs) and the highest dose D5. The profiles extracted from the AFM data are shown in Figure 4 and confirm the morphological changes introduced into the SiO2 substrate. In this case, the middle protrusion is not observed. Discussion In general, the
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Published 07 Feb 2024

Curcumin-loaded nanostructured systems for treatment of leishmaniasis: a review

  • Douglas Dourado,
  • Thayse Silva Medeiros,
  • Éverton do Nascimento Alencar,
  • Edijane Matos Sales and
  • Fábio Rocha Formiga

Beilstein J. Nanotechnol. 2024, 15, 37–50, doi:10.3762/bjnano.15.4

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  • when treated by both nanoandi and nanocopa. Moreover, there was a decrease in lesion size and parasite load from the liver and spleen of mice treated with NE. In ultrastructural analysis performed by scanning electron microscopy, it was possible to observe morphological changes, oval aspect, and
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Published 04 Jan 2024

Nanoarchitectonics to entrap living cells in silica-based systems: encapsulations with yolk–shell and sepiolite nanomaterials

  • Celia Martín-Morales,
  • Jorge Fernández-Méndez,
  • Pilar Aranda and
  • Eduardo Ruiz-Hitzky

Beilstein J. Nanotechnol. 2023, 14, 522–534, doi:10.3762/bjnano.14.43

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  • silica matrix, yeast cells display a completely different morphology from that in common suspension cultures. The observed pseudohyphal growth corresponds to morphological changes that are usually correlated to stress for growing yeast cells [16]. Thus, the pseudohyphal growth could be likely caused by
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Published 25 Apr 2023

In search of cytotoxic selectivity on cancer cells with biogenically synthesized Ag/AgCl nanoparticles

  • Mitzi J. Ramírez-Hernández,
  • Mario Valera-Zaragoza,
  • Omar Viñas-Bravo,
  • Ariana A. Huerta-Heredia,
  • Miguel A. Peña-Rico,
  • Erick A. Juarez-Arellano,
  • David Paniagua-Vega,
  • Eduardo Ramírez-Vargas and
  • Saúl Sánchez-Valdes

Beilstein J. Nanotechnol. 2022, 13, 1505–1519, doi:10.3762/bjnano.13.124

Graphical Abstract
  • ] these color changes were also observed during the formation of AgNPs from the Stevia rebaudiana extract. This behavior was attributed to the gradual formation of Ag nanoparticles, and the morphological changes that occur during biosynthesis. It is important to note that temperature has a considerable
  • (Figure 9) clearly shows that the morphological changes depend on the synthesis temperature and dosage of Ag/AgCl nanoparticles. The data show that the formation of apoptotic bodies (arrows) and the growth of cellular regions (black circles) are integral and characteristic of apoptosis. At high
  • cells and MCF-7 cells with Ag/AgCl nanoparticles after 24 hours of exposure. The MCF-7 cell line shows increased cell area or morphological changes (black circles) and formation of apoptotic bodies (arrows). At high concentrations, a large number of cells in a necrotic state were detected (black box
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Published 13 Dec 2022

A non-enzymatic electrochemical hydrogen peroxide sensor based on copper oxide nanostructures

  • Irena Mihailova,
  • Vjaceslavs Gerbreders,
  • Marina Krasovska,
  • Eriks Sledevskis,
  • Valdis Mizers,
  • Andrejs Bulanovs and
  • Andrejs Ogurcovs

Beilstein J. Nanotechnol. 2022, 13, 424–436, doi:10.3762/bjnano.13.35

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  • storage, no significant morphological changes were observed, which proves the stability of the samples. These results show that the nanostructured CuO coating has long-term stability and resistance to environmental influences, which is another advantage compared to enzyme sensors. Conclusion This article
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Published 03 May 2022

Theranostic potential of self-luminescent branched polyethyleneimine-coated superparamagnetic iron oxide nanoparticles

  • Rouhollah Khodadust,
  • Ozlem Unal and
  • Havva Yagci Acar

Beilstein J. Nanotechnol. 2022, 13, 82–95, doi:10.3762/bjnano.13.6

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  • agreement with the spectroscopic data (Figure 2b). Cells treated with free bPEI show a very weak optical signal in the cytoplasm, as expected (Figure 4c1–c3). In addition, significant morphological changes were observed in these cells due to the cytotoxic effect of bPEI on the cytoplasmic membrane and the
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Published 18 Jan 2022

Polarity in cuticular ridge development and insect attachment on leaf surfaces of Schismatoglottis calyptrata (Araceae)

  • Venkata A. Surapaneni,
  • Tobias Aust,
  • Thomas Speck and
  • Marc Thielen

Beilstein J. Nanotechnol. 2021, 12, 1326–1338, doi:10.3762/bjnano.12.98

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  • of adaxial leaf surfaces at various ontogenetic stages to study the morphological changes occurring on the leaf surfaces. We characterized the replica surfaces by using confocal laser scanning microscopy and commercial surface analysis software. The development of cuticular ridges is polar and the
  • morphological changes and structural integrity of plant surfaces. Whereas the architecture of the cuticular structures and the associated functionalities have been well studied, detailed analyses concerning growth-induced changes in the morphology of cuticular structures are largely absent. Hong et al. [22
  • of the ridges during cell expansion. From the second level to the third level, the ridge islands and the anticlinal fields undergo growth-induced expansion resulting in the observed morphological changes and alignment of ridges. Hong et al. [22] also reported that the densely arranged cuticular
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Published 01 Dec 2021

The role of deep eutectic solvents and carrageenan in synthesizing biocompatible anisotropic metal nanoparticles

  • Nabojit Das,
  • Akash Kumar and
  • Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2021, 12, 924–938, doi:10.3762/bjnano.12.69

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  • stabilization of nanoparticles and determine morphological changes in a nanoparticle due to differential binding to crystal facets during the crystal growth phase of the nanoparticle during synthesis. However, there are reports on synthesizing nanomaterials without stabilizing agents but they were very
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Published 18 Aug 2021

Silver nanoparticles nucleated in NaOH-treated halloysite: a potential antimicrobial material

  • Yuri B. Matos,
  • Rodrigo S. Romanus,
  • Mattheus Torquato,
  • Edgar H. de Souza,
  • Rodrigo L. Villanova,
  • Marlene Soares and
  • Emilson R. Viana

Beilstein J. Nanotechnol. 2021, 12, 798–807, doi:10.3762/bjnano.12.63

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  • , 105, 230, and 505 °C. After that, TEM images were obtained to correlate morphological changes occurring during the synthesis with the thermodynamic data from DSC/TGA analysis. Finally, another 10 g of HNT-8 was loaded with AgNO3 and heated up to 700 °C, with visual inspections being performed at 40
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Published 05 Aug 2021

A review of defect engineering, ion implantation, and nanofabrication using the helium ion microscope

  • Frances I. Allen

Beilstein J. Nanotechnol. 2021, 12, 633–664, doi:10.3762/bjnano.12.52

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Published 02 Jul 2021

On the stability of microwave-fabricated SERS substrates – chemical and morphological considerations

  • Limin Wang,
  • Aisha Adebola Womiloju,
  • Christiane Höppener,
  • Ulrich S. Schubert and
  • Stephanie Hoeppener

Beilstein J. Nanotechnol. 2021, 12, 541–551, doi:10.3762/bjnano.12.44

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  • substrates treated with methanol, ethanol, or N,N-dimethylformamide (DMF) were comparable and showed overall good stability and did not show severe morphological changes or a strong decrease in their Raman activity. Toluene treatment resulted in a strong decrease in the Raman activity whereas dimethyl
  • before and after treatment. Therefore, it can be used in an initial evaluation of the morphological changes observed on the substrates after their immersion into different solvents and buffer solutions in comparison to the respective reference samples. The projected particle size analysis of the
  • microwave-fabricated SERS substrates (Figure 2a) indicates a reasonable reproducibility of the fabrication process (Supporting Information File 1, Figure S2) and can be used for the evaluation of the morphological changes, as exemplified by the samples which were treated for 1 h with water (Figure 2b). Both
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Published 11 Jun 2021

A review on nanostructured silver as a basic ingredient in medicine: physicochemical parameters and characterization

  • Gabriel M. Misirli,
  • Kishore Sridharan and
  • Shirley M. P. Abrantes

Beilstein J. Nanotechnol. 2021, 12, 440–461, doi:10.3762/bjnano.12.36

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  • blood tests, urinalysis, sputum induction, and magnetic resonance imaging of the chest and abdomen. After oral exposure, the silver content in the serum and urine was analyzed and no clinically abnormal changes were noted in the lungs, heart, or abdominal organs. Also, no morphological changes were
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Published 14 May 2021

The nanomorphology of cell surfaces of adhered osteoblasts

  • Christian Voelkner,
  • Mirco Wendt,
  • Regina Lange,
  • Max Ulbrich,
  • Martina Gruening,
  • Susanne Staehlke,
  • Barbara Nebe,
  • Ingo Barke and
  • Sylvia Speller

Beilstein J. Nanotechnol. 2021, 12, 242–256, doi:10.3762/bjnano.12.20

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  • ruffles moving beneath the pipette opening. Slightly higher rms amplitudes may also be due to different temperature because fixed cells are measured at room temperature, while live-cell imaging is carried out at 37 °C. Frequency response behavior Owing to the fact that morphological changes at the cell
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Published 12 Mar 2021

Atomic layer deposited films of Al2O3 on fluorine-doped tin oxide electrodes: stability and barrier properties

  • Hana Krýsová,
  • Michael Neumann-Spallart,
  • Hana Tarábková,
  • Pavel Janda,
  • Ladislav Kavan and
  • Josef Krýsa

Beilstein J. Nanotechnol. 2021, 12, 24–34, doi:10.3762/bjnano.12.2

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  • on its surface (Figure S6, Supporting Information File 1), the surface of an FTO substrate covered by a thin conformal Al2O3 film does not show any significant morphological changes after the electrochemical treatment (Figure S7, Supporting Information File 1). The cathodic breakdown of FTO is also
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Published 05 Jan 2021

Imaging and milling resolution of light ion beams from helium ion microscopy and FIBs driven by liquid metal alloy ion sources

  • Nico Klingner,
  • Gregor Hlawacek,
  • Paul Mazarov,
  • Wolfgang Pilz,
  • Fabian Meyer and
  • Lothar Bischoff

Beilstein J. Nanotechnol. 2020, 11, 1742–1749, doi:10.3762/bjnano.11.156

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  • thickness. Milling membranes removes their support from one side and dangling bonds can lead to morphological changes making milling tests difficult to interpret. In metal layers of a few nanometers thickness, sputter redeposition can take place, which is not taken into account in our static SRIM simulation
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Published 18 Nov 2020

Electromigration-induced directional steps towards the formation of single atomic Ag contacts

  • Atasi Chatterjee,
  • Christoph Tegenkamp and
  • Herbert Pfnür

Beilstein J. Nanotechnol. 2020, 11, 680–687, doi:10.3762/bjnano.11.55

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  • could not be identified visually nor be reproducibly generated. This contrasts with experiments where the smallest constriction was reduced by one order of magnitude down to about 15 nm using a focused ion beam (FIB), i.e., far below the average grain size in the Ag film, in which complex morphological
  • changes were absent [28]. Thus, we have a well-defined reference system generated by EM. Therefore, it seems meaningful to obtain more details about the thinning process induced by EM in this system from the information contained within the experimental conduction histograms and their FTs. Furthermore
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Published 22 Apr 2020

Multilayer capsules made of weak polyelectrolytes: a review on the preparation, functionalization and applications in drug delivery

  • Varsha Sharma and
  • Anandhakumar Sundaramurthy

Beilstein J. Nanotechnol. 2020, 11, 508–532, doi:10.3762/bjnano.11.41

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  • applied to a variety of PEs. Multilayer capsules formed on such a variety of cores can reveal specific characteristics and are mostly studied using microscopy techniques such as scanning electron microscopy (SEM) and transmission electron microscopy (TEM) to observe their morphological changes. Moreover
  • screening effect on multilayer bonds [44]. Similar morphological changes were observed when the temperature dependence of electrostatically bound capsules was studied with various PEs that are thermo-responsive [45]. Additionally, the effect of the dissolution of the core on the permeability of capsules was
  • approached, the morphological changes in PVP/PMA capsules were seen with the decrease in multilayer thickness due to disruption of hydrogen bonds [50]. When the same was cross-linked by carbodiimide chemistry, the swelling was observed at higher pH, leading to the formation of highly swollen hydrogels. To
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Published 27 Mar 2020
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