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Article: Oral Pyogenic Granuloma at Different Spots: A Series of Case Reports.

Phull, Tanvi / Dadhwal, Hima / Kaur, Rajpreet / Malhotra, Ritu / Jyoti, Divya / Kaur, Ravneet

Journal of pharmacy & bioallied sciences

2024 Volume 16, Issue Suppl 1, Page(s) S999–S1001

Abstract: Pyogenic granuloma is an inflammatory non-neoplastic lesion of the oral cavity. Chronic, mild, local irritation, trauma, hormonal variables, and certain medications are typical causes of pyogenic granulomas. Women have a higher prevalence than men. The ... ...

Abstract	Pyogenic granuloma is an inflammatory non-neoplastic lesion of the oral cavity. Chronic, mild, local irritation, trauma, hormonal variables, and certain medications are typical causes of pyogenic granulomas. Women have a higher prevalence than men. The risk is greatest in the second to fifth decades of life. Clinically, the lesion appears smooth, with soft to firm consistency and nontender with a pedunculated or sessile base. Various modalities have been proposed for the treatment of lesion, which include the conventional approach, the use of laser, cryotherapy, and electrocauterization. This case series discusses three cases of pyogenic granuloma in female patients at different locations in the oral cavity. The lesion was subsequently treated with electrosurgery and surgical convention methods. No recurrence of the lesion has been seen in either of the cases.
Language	English
Publishing date	2024-02-29
Publishing country	India
Document type	Case Reports
ZDB-ID	2573569-X
ISSN	0975-7406 ; 0976-4879
ISSN (online)	0975-7406
ISSN	0976-4879
DOI	10.4103/jpbs.jpbs_703_23
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Article ; Online: Mechanistic Aspects of Simultaneous Extraction of Silver and Gold Nanoparticles across Aqueous-Organic Interfaces by Surface Active Iron Oxide Nanoparticles.

Kaur, Rajpreet / Bakshi, Mandeep Singh

Langmuir : the ACS journal of surfaces and colloids

2020 Volume 36, Issue 26, Page(s) 7505–7516

Abstract: Surface active iron oxide nanoparticles (NPs) were used for the simultaneous extraction of water soluble Ag and Au NPs across an aqueous-organic interface from aqueous bulk. The surface activity of iron oxide NPs was achieved by using cationic Gemini ... ...

Abstract	Surface active iron oxide nanoparticles (NPs) were used for the simultaneous extraction of water soluble Ag and Au NPs across an aqueous-organic interface from aqueous bulk. The surface activity of iron oxide NPs was achieved by using cationic Gemini surfactants of different architectures during the in situ synthesis of iron oxide NPs in hydrothermal synthesis. Aqueous bulk solubility of Ag and Au NPs was achieved by stabilizing them with conventional surfactants of different polarities such as SDS, CTAB, and DDM. The amphiphilic nature of iron oxide NPs demonstrated their remarkable ability to extract Ag and Au NPs through both hydrophilic and hydrophobic interactions. The mechanism of extraction from aqueous bulk was monitored by placing different amounts of surface active iron oxide NPs on the aqueous-organic interface and was studied with the help of UV-visible, DLS, and IR measurements. XPS and TEM measurements were used for the quantitative estimation of efficiency of extraction. Extraction was facilitated when both hydrophilic and hydrophobic interactions were participating simultaneously. Results may help in designing a suitable method for purification of industrial effluents contaminated with metal particulates simply by applying an external magnetic field rather than going through a complicated conventional filtration process.
Language	English
Publishing date	2020-06-24
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2005937-1
ISSN	1520-5827 ; 0743-7463
ISSN (online)	1520-5827
ISSN	0743-7463
DOI	10.1021/acs.langmuir.0c01102
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Article: Distinguishing Nanoparticle–Nanoparticle Interactions between Gold and Silver Nanoparticles Controlled by Gemini Surfactants: Stability of Nanocolloids

Riedesel, Shawn / Kaur, Rajpreet / Bakshi, Mandeep Singh

Journal of physical chemistry. 2021 Feb. 24, v. 125, no. 9

2021

Abstract: Nanoparticle–nanoparticle (NP–NP) interactions were studied by choosing oppositely charged colloidal suspensions of Au and Ag NPs. For this purpose, sodium dodecyl sulfate-stabilized Au NPs were titrated with a series of Gemini surfactant (i.e., 12-n-12 ... ...

Abstract	Nanoparticle–nanoparticle (NP–NP) interactions were studied by choosing oppositely charged colloidal suspensions of Au and Ag NPs. For this purpose, sodium dodecyl sulfate-stabilized Au NPs were titrated with a series of Gemini surfactant (i.e., 12-n-12 and 16-n-16)-stabilized Ag NPs to demonstrate the effect of head group and hydrophobic tail modifications on the Au–Ag NP interactions. The purpose of selecting Au and Ag NPs was to monitor and differentiate among their individual colloidal behaviors in the course of NP–NP interactions by simultaneously conducting UV–visible, size, and ζ potential measurements. All colloidal properties demonstrated a significant change in the event of Au–Ag NP complex formation during NP–NP interactions. Nanomaterial analysis indicated a high degree of inter-particle fusion among Au and Ag NPs with a high Au–Ag mole ratio for strongly interacting Au–Ag NPs systems but a low Au–Ag mole ratio for the systems where interactions were screened by modifying the molecular structure of Gemini surfactants. Results concluded that it is possible to screen or delay the NP–NP interactions even for strongly interacting systems simply by incorporating a non-polar spacer in the head group region or by increasing the length of hydrocarbon chains of the Gemini surfactant, thus producing colloidal suspensions with a longer shelf life and better industrial applicability.
Keywords	chemical structure ; colloids ; industrial applications ; nanosilver ; shelf life ; sodium ; surfactants
Language	English
Dates of publication	2021-0224
Size	p. 5399-5411.
Publishing place	American Chemical Society
Document type	Article
Note	NAL-AP-2-clean
ISSN	1932-7455
DOI	10.1021/acs.jpcc.1c00220
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Extraction of Bionanomaterials from the Aqueous Bulk by Using Surface Active and Water-Soluble Magnetic Nanoparticles.

Kaur, Rajpreet / Khullar, Poonam / Gupta, Anita / Bakshi, Mandeep Singh

Langmuir : the ACS journal of surfaces and colloids

2021 Volume 37, Issue 49, Page(s) 14558–14570

Abstract: Surface active and water-soluble magnetic nanoparticles (NPs) were used to demonstrate the extraction of bionanomaterials from the aqueous bulk. Au NPs conjugated with different water-insoluble and water-soluble proteins were used as model ... ...

Abstract	Surface active and water-soluble magnetic nanoparticles (NPs) were used to demonstrate the extraction of bionanomaterials from the aqueous bulk. Au NPs conjugated with different water-insoluble and water-soluble proteins were used as model bionanomaterials. UV-visible studies, zeta potential, and microscopic analyses were performed to quantify the extraction. Sodium dodecyl sulfate and dimethylene bis(dodecyldimethylammonium bromide) (12-2-12) stabilized surface active magnetic NPs were fully capable of extracting Au NPs conjugated with predominantly hydrophobic proteins from the aqueous bulk when placed at the aqueous-air interface. However, they were poor in extracting Au NPs from the aqueous bulk which were coated with predominantly hydrophilic water-soluble protein. On the other hand, water-soluble dodecyldimethyl-3-ammonio-1-propanesulfonate stabilized magnetic NPs proved to be fully capable of extracting all kinds of Au NPs conjugated with either water-soluble or water-insoluble proteins. The results highlight the remarkable ability of magnetic NPs in the extraction of bionanomaterials when placed at either biointerfaces or in the aqueous bulk of biological systems.
MeSH term(s)	Gold ; Hydrophobic and Hydrophilic Interactions ; Magnetite Nanoparticles ; Water
Chemical Substances	Magnetite Nanoparticles ; Water (059QF0KO0R) ; Gold (7440-57-5)
Language	English
Publishing date	2021-12-05
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2005937-1
ISSN	1520-5827 ; 0743-7463
ISSN (online)	1520-5827
ISSN	0743-7463
DOI	10.1021/acs.langmuir.1c03074
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Article: Extraction of Bionanomaterials from the Aqueous Bulk by Using Surface Active and Water-Soluble Magnetic Nanoparticles

Kaur, Rajpreet / Khullar, Poonam / Gupta, Anita / Bakshi, Mandeep Singh

Langmuir. 2021 Dec. 05, v. 37, no. 49

2021

Abstract	Surface active and water-soluble magnetic nanoparticles (NPs) were used to demonstrate the extraction of bionanomaterials from the aqueous bulk. Au NPs conjugated with different water-insoluble and water-soluble proteins were used as model bionanomaterials. UV–visible studies, zeta potential, and microscopic analyses were performed to quantify the extraction. Sodium dodecyl sulfate and dimethylene bis(dodecyldimethylammonium bromide) (12-2-12) stabilized surface active magnetic NPs were fully capable of extracting Au NPs conjugated with predominantly hydrophobic proteins from the aqueous bulk when placed at the aqueous–air interface. However, they were poor in extracting Au NPs from the aqueous bulk which were coated with predominantly hydrophilic water-soluble protein. On the other hand, water-soluble dodecyldimethyl-3-ammonio-1-propanesulfonate stabilized magnetic NPs proved to be fully capable of extracting all kinds of Au NPs conjugated with either water-soluble or water-insoluble proteins. The results highlight the remarkable ability of magnetic NPs in the extraction of bionanomaterials when placed at either biointerfaces or in the aqueous bulk of biological systems.
Keywords	hydrophilicity ; hydrophobicity ; magnetism ; sodium dodecyl sulfate ; water solubility ; zeta potential
Language	English
Dates of publication	2021-1205
Size	p. 14558-14570.
Publishing place	American Chemical Society
Document type	Article
ZDB-ID	2005937-1
ISSN	1520-5827 ; 0743-7463
ISSN (online)	1520-5827
ISSN	0743-7463
DOI	10.1021/acs.langmuir.1c03074
Database	NAL-Catalogue (AGRICOLA)

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Article: Biodiesel as a non-aqueous medium for the synthesis of nanomaterials: relevance to metallic particulate suspensions in biofuels and their removal

Kaur, Rajpreet / Khullar, Poonam / Gupta, Anita / Ahluwalia, Gurinder Kaur / Bakshi, Mandeep Singh

Biofuels. 2021 Oct. 21, v. 12, no. 9

2021

Abstract: In relevance to materials chemistry, this study presents biodiesel as an important non-aqueous medium for the synthesis of nanomaterials by demonstrating the synthesis of most versatile gold (Au) and silver (Ag) nanoparticles (NPs) in biodiesel medium. ... ...

Abstract	In relevance to materials chemistry, this study presents biodiesel as an important non-aqueous medium for the synthesis of nanomaterials by demonstrating the synthesis of most versatile gold (Au) and silver (Ag) nanoparticles (NPs) in biodiesel medium. We show single-step in situ synthesis of Au and Ag NPs using biodiesels prepared from soybean and olive oil. Both biodiesels proved to be excellent solvents, reducing agents, and stabilizing agents for Au and Ag NPs. Au and Ag NPs were characterized by transmission electron microscope and XRD analyses, and were within the range of ∼10–50 nm. Colloidal stabilization of NPs by the surface adsorption of biodiesel was evaluated by detailed FT-IR analysis and determined to be driven by the ester head group of biodiesel molecules. Biodiesel-stabilized NPs in aqueous phase were efficiently extracted in the organic phase without using any phase transfer agent, suggesting the applicability of biodiesel in entrapping metal particulates and removing them from the aqueous phase with relevance to environmental sustainability.
Keywords	adsorption ; biodiesel ; environmental sustainability ; gold ; olive oil ; particulates ; silver ; soybeans ; transmission electron microscopes
Language	English
Dates of publication	2021-1021
Size	p. 1141-1148.
Publishing place	Taylor & Francis
Document type	Article
ISSN	1759-7277
DOI	10.1080/17597269.2019.1594593
Database	NAL-Catalogue (AGRICOLA)

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Article: Applications of Molecular Structural Aspects of Gemini Surfactants in Reducing Nanoparticle–Nanoparticle Interactions

Kaur, Rajpreet / Ahluwalia, Gurinder Kaur / Bakshi, Mandeep Singh / Gupta, Anita / Khullar, Poonam / Singh, Kultar

Langmuir. 2019 Oct. 24, v. 35, no. 46

2019

Abstract: Oppositely charged nanoparticle (NP)–nanoparticle (NP) interactions were studied by titrating sodium dodecyl sulfate (SDS) stabilized NPs with cetyltrimethylammonium bromide (CTAB) stabilized NPs at constant temperature with the help of UV–visible and ... ...

Abstract	Oppositely charged nanoparticle (NP)–nanoparticle (NP) interactions were studied by titrating sodium dodecyl sulfate (SDS) stabilized NPs with cetyltrimethylammonium bromide (CTAB) stabilized NPs at constant temperature with the help of UV–visible and dynamic light scattering measurements. CTAB stabilized NPs were systematically replaced with a series of cationic gemini surfactants to demonstrate the effect of head group and hydrocarbon tail modifications on the electrostatic interactions with SDS stabilized NPs. Introduction of the dimeric gemini head group (alkylammonium or imidazolium), spacer length, and double tail hydrocarbon length all significantly reduced the NP–NP interactions and delayed their salting-out process. They lead to the formation of stable colloidal aqueous solubilized NP–NP complexes. The results concluded that NP–NP interactions can be overcome if appropriately stabilized NPs are used to maintain their colloidal stability so as to achieve maximum applicability.
Keywords	cetyltrimethylammonium bromide ; electrostatic interactions ; imidazoles ; light scattering ; nanoparticles ; sodium dodecyl sulfate ; solubilization ; surfactants ; temperature
Language	English
Dates of publication	2019-1024
Size	p. 14929-14938.
Publishing place	American Chemical Society
Document type	Article
ZDB-ID	2005937-1
ISSN	1520-5827 ; 0743-7463
ISSN (online)	1520-5827
ISSN	0743-7463
DOI	10.1021/acs.langmuir.9b02855
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Article ; Online: Applications of Molecular Structural Aspects of Gemini Surfactants in Reducing Nanoparticle-Nanoparticle Interactions.

Kaur, Rajpreet / Singh, Kultar / Khullar, Poonam / Gupta, Anita / Ahluwalia, Gurinder Kaur / Bakshi, Mandeep Singh

Langmuir : the ACS journal of surfaces and colloids

2019 Volume 35, Issue 46, Page(s) 14929–14938

Abstract: Oppositely charged nanoparticle (NP)-nanoparticle (NP) interactions were studied by titrating sodium dodecyl sulfate (SDS) stabilized NPs with cetyltrimethylammonium bromide (CTAB) stabilized NPs at constant temperature with the help of UV-visible and ... ...

Abstract	Oppositely charged nanoparticle (NP)-nanoparticle (NP) interactions were studied by titrating sodium dodecyl sulfate (SDS) stabilized NPs with cetyltrimethylammonium bromide (CTAB) stabilized NPs at constant temperature with the help of UV-visible and dynamic light scattering measurements. CTAB stabilized NPs were systematically replaced with a series of cationic gemini surfactants to demonstrate the effect of head group and hydrocarbon tail modifications on the electrostatic interactions with SDS stabilized NPs. Introduction of the dimeric gemini head group (alkylammonium or imidazolium), spacer length, and double tail hydrocarbon length all significantly reduced the NP-NP interactions and delayed their salting-out process. They lead to the formation of stable colloidal aqueous solubilized NP-NP complexes. The results concluded that NP-NP interactions can be overcome if appropriately stabilized NPs are used to maintain their colloidal stability so as to achieve maximum applicability.
Language	English
Publishing date	2019-11-06
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2005937-1
ISSN	1520-5827 ; 0743-7463
ISSN (online)	1520-5827
ISSN	0743-7463
DOI	10.1021/acs.langmuir.9b02855
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Article ; Online: Skeletonization Algorithm for Numeral Patterns

Gupta Rakesh / Kaur Rajpreet

International Journal of Signal Processing, Image Processing and Pattern Recognition , Vol 1, Iss 1, Pp 63-

2008 Volume 72

Abstract: Skeletonization has been a part of morphological image processing for a wide variety of applications. Skeletonization algorithms have played an important role in the preprocessing phase of OCR systems. Many algorithms for vectorization by skeletonization ...

Abstract	Skeletonization has been a part of morphological image processing for a wide variety of applications. Skeletonization algorithms have played an important role in the preprocessing phase of OCR systems. Many algorithms for vectorization by skeletonization have been devised and applied to a great variety of pictures and drawings for data compression, pattern recognition and raster-to-vector conversion. The vectorization algorithms often used in pattern recognition tasks also require one-pixel-wide lines as input. But parallel skeletonization algorithms which generate one-pixel-wide skeletons can have difficulty in preserving the connectivity of an image or generate spurious branches. In this paper an alternative parallel skeletonization algorithm has been developed and implemented. This algorithm is better than already existing algorithms in terms of connectivity and spurious branches. A few most common skeletonization algorithms have been implemented and evaluated on the basis of performance parameters and compared with newly developed algorithm.
Keywords	Digital image ; parallel skeletonization algorithm ; structuring element elimination rule ; connectivity ; execution time ; spurious branches ; character recognition ; Electronic computers. Computer science ; QA75.5-76.95 ; Instruments and machines ; QA71-90 ; Mathematics ; QA1-939 ; Science ; Q ; DOAJ:Computer Science ; DOAJ:Technology and Engineering
Subject code	006
Language	English
Publishing date	2008-12-01T00:00:00Z
Publisher	SERSC
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Novel cationic supersaturable nanomicellar systems of raloxifene hydrochloride with enhanced biopharmaceutical attributes.

Jain, Atul / Kaur, Rajpreet / Beg, Sarwar / Kushwah, Varun / Jain, Sanyog / Singh, Bhupinder

Drug delivery and translational research

2018 Volume 8, Issue 3, Page(s) 670–692

Abstract: The work describes systematic development of nanomicellar cationic supersaturable self-nanoemulsifying drug delivery systems (CS-SNEDDS) for augmenting oral biopharmaceutical performance of raloxifene hydrochloride. Plain SNEDDS formulation containing ... ...

Abstract	The work describes systematic development of nanomicellar cationic supersaturable self-nanoemulsifying drug delivery systems (CS-SNEDDS) for augmenting oral biopharmaceutical performance of raloxifene hydrochloride. Plain SNEDDS formulation containing Capryol 90, Cremophor RH 40, and Transcutol HP was optimized using D-optimal mixture design. SNEDDS were characterized for emulsification time, globule size, in vitro drug release, and ex vivo permeation. The CS-SNEDDS formulation was prepared from the optimized SNEDDS by adding oleylamine as the cationic charge inducer and HPMC as the polymeric precipitation inhibitor. Evaluation of CS-SNEDDS was carried out through in vitro cell line studies on Caco-2 and MCF-7 cells, in situ perfusion, and in vivo pharmacokinetic studies, which indicated significant improvement in biopharmaceutical attributes of the drug from CS-SNEDDS over plain drug.
MeSH term(s)	Animals ; Biological Transport ; Caco-2 Cells ; Cell Survival/drug effects ; Chemistry, Pharmaceutical ; Drug Delivery Systems ; Drug Liberation ; Emulsions ; Estrogen Antagonists/administration & dosage ; Estrogen Antagonists/chemistry ; Estrogen Antagonists/pharmacokinetics ; Ethylene Glycols/administration & dosage ; Ethylene Glycols/chemistry ; Ethylene Glycols/pharmacokinetics ; Humans ; Hypromellose Derivatives/chemistry ; Intestinal Mucosa/metabolism ; MCF-7 Cells ; Micelles ; Models, Biological ; Nanoparticles/administration & dosage ; Nanoparticles/chemistry ; Polyethylene Glycols/administration & dosage ; Polyethylene Glycols/chemistry ; Polyethylene Glycols/pharmacokinetics ; Polymers/administration & dosage ; Polymers/chemistry ; Polymers/pharmacokinetics ; Propylene Glycols/administration & dosage ; Propylene Glycols/chemistry ; Propylene Glycols/pharmacokinetics ; Raloxifene Hydrochloride/administration & dosage ; Raloxifene Hydrochloride/chemistry ; Raloxifene Hydrochloride/pharmacokinetics ; Rats, Sprague-Dawley
Chemical Substances	Emulsions ; Estrogen Antagonists ; Ethylene Glycols ; Micelles ; Polymers ; Propylene Glycols ; capryol propylene glycol monocaprylate ; cremophor (39279-69-1) ; Hypromellose Derivatives (3NXW29V3WO) ; Polyethylene Glycols (3WJQ0SDW1A) ; Raloxifene Hydrochloride (4F86W47BR6) ; carbitol (A1A1I8X02B)
Language	English
Publishing date	2018-02-16
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2590155-2
ISSN	2190-3948 ; 2190-393X
ISSN (online)	2190-3948
ISSN	2190-393X
DOI	10.1007/s13346-018-0514-8
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