Amit Kumar

ORCID: 0000-0003-4655-1660
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Research Areas
  • Dental Research and COVID-19
  • Dental Health and Care Utilization
  • Oral microbiology and periodontitis research
  • Dental materials and restorations
  • Endodontics and Root Canal Treatments
  • Dental Anxiety and Anesthesia Techniques
  • Dental Radiography and Imaging
  • Dental Implant Techniques and Outcomes
  • Gamma-ray bursts and supernovae
  • Oral Health Pathology and Treatment
  • Nanofabrication and Lithography Techniques
  • Molecular Junctions and Nanostructures
  • Child Nutrition and Water Access
  • COVID-19 Clinical Research Studies
  • Dental Erosion and Treatment
  • HIV/AIDS oral health manifestations
  • Scientific and Engineering Research Topics
  • Periodontal Regeneration and Treatments
  • Orthodontics and Dentofacial Orthopedics
  • SARS-CoV-2 and COVID-19 Research
  • Blood Pressure and Hypertension Studies
  • COVID-19 and healthcare impacts
  • Cleft Lip and Palate Research
  • Force Microscopy Techniques and Applications
  • Botulinum Toxin and Related Neurological Disorders

Rajendra Institute of Medical Sciences
2022-2025

All India Institute of Medical Sciences
2017-2025

Jaipur Golden Hospital
2025

Mithila Minority Dental College And Hospital
2021-2024

Dr. D.Y. Patil Vidyapeeth, Pune
2024

Cosmote (Greece)
2024

KIIT University
2023-2024

Ragas Dental College & Hospital
2023-2024

Chacha Nehru Bal Chikitsalaya
2023-2024

D A Pandu Memorial RV Dental College and Hospital
2024

This letter describes a technique that can be used to produce well-defined features of gold. The involves patterning self-assembled monolayer (SAM) on gold substrate using an elastomer stamp (fabricated either from phenol-formaldehyde polymer or polydimethylsiloxane), followed by selective etching in aqueous, basic solution cyanide ion and dissolved dioxygen (1M KOH, 0.1 M KCN). Electrically conductive structures with dimensions as small 1 μm have been produced this procedure. Once rubber is...

10.1063/1.110628 article EN Applied Physics Letters 1993-10-04

An elastomeric stamp, containing defined features on the micrometer scale, was used to imprint gold surfaces with specific patterns of self-assembled monolayers alkanethiols and, thereby, create islands shape and size that support extracellular matrix protein adsorption cell attachment. Through this technique, it possible place cells in predetermined locations arrays, separated by distances, dictate their shape. Limiting degree extension provided control over growth secretion. This method is...

10.1126/science.8171320 article EN Science 1994-04-29

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPatterning Self-Assembled Monolayers: Applications in Materials ScienceAmit Kumar, Hans A. Biebuyck, and George M. WhitesidesCite this: Langmuir 1994, 10, 5, 1498–1511Publication Date (Print):May 1, 1994Publication History Published online1 May 2002Published inissue 1 1994https://pubs.acs.org/doi/10.1021/la00017a030https://doi.org/10.1021/la00017a030research-articleACS PublicationsRequest reuse permissionsArticle...

10.1021/la00017a030 article EN Langmuir 1994-05-01

Microcontact printing , is described. It offers extreme experimental simplicity and flexibility, relying on the ability of self‐assembled monolayers (SAMs) longchain alkanethiolates gold other metals to act as nanometer resists. The Figure an electron micrograph a silicon microstructure resulting from chemical etching patterned SAM. magnified image

10.1002/adma.19940060719 article EN Advanced Materials 1994-07-01

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPatterned Self-Assembled Monolayers and Meso-Scale PhenomenaAmit Kumar, Nicholas L. Abbott, Hans A. Biebuyck, Enoch Kim, George M. WhitesidesCite this: Acc. Chem. Res. 1995, 28, 5, 219–226Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published inissue 1 1995https://pubs.acs.org/doi/10.1021/ar00053a003https://doi.org/10.1021/ar00053a003research-articleACS PublicationsRequest reuse permissionsArticle...

10.1021/ar00053a003 article EN Accounts of Chemical Research 1995-05-01

Heterogeneous, patterned surfaces comprising well-defined hydrophobic and hydrophilic regions having micrometer-scale periodicities were prepared by patterning the adsorption of omega-functionalized alkanethiolates in self-assembled monolayers (SAMs) on gold. Condensation water such resulted drops that followed patterns SAMs. These condensation figures (CFs) acted as optical diffraction gratings for reflected (or transmitted) light from a helium-neon laser (wavelength 632.8 nanometers)....

10.1126/science.263.5143.60 article EN Science 1994-01-07

This paper describes applications in microfabrication using patterned self-assembled monolayers (SAMs) formed by microcontact printing. Microcontact printing is a flexible new technique that forms SAMs with regions terminated different chemical functionalities (and thus physical and properties), patterns dimensions. Patterns of SAM are an alkanethiol as `ink', the on metal support elastomeric `stamp'. We fabricate stamp moulding silicone elastomer master prepared optical or x-ray...

10.1088/0957-4484/7/4/028 article EN Nanotechnology 1996-12-01

The study aimed to clinically assess the association between periodontitis and COVID-19-related outcomes.Data pertaining patient demographics, medical history, blood parameters, periodontal clinical examination aMMP-8 point-of-care diagnostics (both site-level patient-level) was recorded for eighty-two COVID-19-positive patients. outcomes such as COVID-19 pneumonia, death/survival, types of hospital admission need assisted ventilation were also assessed.Males predominantly afflicted with...

10.1007/s00784-021-04111-3 article EN other-oa Clinical Oral Investigations 2021-08-27

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFabrication and imaging of two-dimensional patterns proteins adsorbed on self-assembled monolayers by scanning electron microscopyGabriel P. Lopez, Hans A. Biebuyck, Ralph Harter, Amit Kumar, George M. WhitesidesCite this: J. Am. Chem. Soc. 1993, 115, 23, 10774–10781Publication Date (Print):November 1, 1993Publication History Published online1 May 2002Published inissue 1 November...

10.1021/ja00076a038 article EN Journal of the American Chemical Society 1993-11-01

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe use of self-assembled monolayers and a selective etch to generate patterned gold featuresAmit Kumar, Hans A. Biebuyck, Nicholas L. Abbott, George M. WhitesidesCite this: J. Am. Chem. Soc. 1992, 114, 23, 9188–9189Publication Date (Print):November 1, 1992Publication History Published online1 May 2002Published inissue 1 November 1992https://pubs.acs.org/doi/10.1021/ja00049a061https://doi.org/10.1021/ja00049a061research-articleACS...

10.1021/ja00049a061 article EN Journal of the American Chemical Society 1992-11-01

10.1016/0927-7757(94)02940-7 article EN Colloids and Surfaces A Physicochemical and Engineering Aspects 1994-12-01

Internet addiction (IA) has negative consequences on the mental health and affects daily activities. This study was conducted with aim to assess prevalence of among dental university students determine if there is any relationship excessive use depression academic performance students.This a cross sectional which included 384 from different years. A questionnaire prepared that collected information demographic characteristics, pattern use, duration most common mode access. assessed using...

10.15386/cjmed-796 article EN Medicine and Pharmacy Reports 2018-02-20

Hydrophobic coatings have been created through self-assembled monolayers (SAMs) on gold, copper, and copper-nickel alloy surfaces that enhance steam condensation dropwise condensation. The monolayer is formed by chemisorption of alkylthiols these metal surfaces. Due to their negligible thickness (10–15 Å), SAMs heat transfer resistance, involve a minuscule amount the organic material pose any contamination problem system from erosion coating. coating was applied directly copper 90/10 tubes,...

10.1115/1.521465 article EN Journal of Heat Transfer 1999-12-23

Since the role of emotional intelligence (EI) in achieving academic excellence requires further research, aims this cross-sectional study were to assess EI and its associated factors determine any association between performance among final-year dental students Bengaluru, India. In 2015, 208 from six colleges Bengaluru invited participate study. Their demographic lifestyle data collected, was assessed with 30-item Emotional Quotient Self-Assessment Checklist developed by Sterrett. Academic...

10.1002/j.0022-0337.2016.80.5.tb06112.x article EN Journal of Dental Education 2016-05-01

Abstract We investigate the relativistic, viscous, advective neutrino-dominated accretion flows (NDAFs) around rotating stellar-mass black holes, incorporating neutrino cooling. By adopting an effective potential to describe spacetime geometry we self-consistently solve governing NDAF equations obtain global transonic solutions. Our findings indicate that, depending on model parameters, namely, energy ( ε ), angular momentum λ rate <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"...

10.3847/1538-4357/adabc8 article EN cc-by The Astrophysical Journal 2025-02-05

Sex-related disorders are often underreported entities in developing countries probably due to social stigma, lack of knowledge, and the personal significance sex their life [1]. Digital media offers portability, access, visually explicit depictions sexual acts high-definition that leave nothing imagination [2]. Terms like addiction or compulsive sexuality not incorporated DSM-5, however, we do come across such cases Psychiatry practices. Many addicts have an associated psychiatric disorder...

10.52403/ijrr.20250248 article EN International Journal of Research and Review 2025-02-28

10.3917/cerpsy.174.0016 article FR Cerveau & Psycho 2025-03-01

Objectives The removal of orthopaedic implants is one the most frequently executed popular surgical procedures. There currently insufficient data on postoperative patient satisfaction in literature. purpose our study was to evaluate patient’s implant basis indication complications and satisfaction. In addition, compile different techniques removal. Material Methods We explored trauma centres, that underwent Implant February 2017 January 2020, about their personal experiences with Results...

10.25259/joasp_22_23 article EN Journal of Orthopaedics and Spine 2025-03-25

Microcontact printing techniques employing self-assembled alkanethiol monolayers in the production of metal masks have been combined with reactive ion etch for subsequent pattern transfer to silicon. Silicon feature sizes about 300 nm demonstrated. Some inadequacies (SAMs)-formed characterized by electron microscopy. Particularly, nickel control and edge definition remain problems be solved if process is employed submicron production. Nickel patterns produced used as without gold overlayer...

10.1088/0957-4484/7/4/027 article EN Nanotechnology 1996-12-01

The population of older people as well the number dependent is steadily increasing. Those unable to live independently at home are being cared for in a range settings. Practical training nurses and auxiliary care staff has frequently been recommended way improving oral health functionally elderly.To evaluate an education program caretakers institutionalized elderly.The study was cluster randomized intervention trial with elderly unit randomization. Seven out 65 homes accommodating total 78...

10.4103/2231-0762.139843 article EN Journal of International Society of Preventive and Community Dentistry 2014-01-01
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