Durgesh Kumar Tripathi

Amity University

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Vijay Pratap Singh

Indian Institute of Technology Roorkee

123

Devendra Kumar Chauhan

University of Allahabad

Shivesh Sharma

Motilal Nehru National Institute of Technology

Amit Alexander

National Institute of Pharmaceutical Education and Research

M. Ajazuddin

Indian Institute of Technology Bhilai

Nawal Kishore Dubey

Banaras Hindu University

Tapan Kumar Giri

Dr. R. Ahmed Dental College and Hospital

Sheo Mohan Prasad

University of Allahabad

Rupesh Deshmukh

Central University of Haryana

Nidhi Kandhol

Amity University

Cooperative Institutions

University of Allahabad

Banaras Hindu University

Motilal Nehru National Institute of Technology

Amity University

University of Delhi

University of Agriculture Faisalabad

Chinese Academy of Sciences

Institute of Medical Sciences

National Agri-Food Biotechnology Institute

Guru Nanak Dev University

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Modified chitosan hydrogels as drug delivery and tissue engineering systems: present status and applications

Acta Pharmaceutica Sinica B (2012)

Tapan Kumar Giri Amrita Thakur Amit Alexander M. Ajazuddin Hemant Badwaik

Chitosan, a natural cationic polysaccharide, is prepared industrially by the hydrolysis of the aminoacetyl groups of chitin, a naturally available marine polymer. Chitosan is a non-toxic, biocompatible and biodegradable polymer and has attracted considerable interest in a wide range of biomedical and pharmaceutical applications including drug delivery, cosmetics, and tissue engineering. The primary hydroxyl and amine groups located on the backbone of chitosan are responsible for the reactivity of the polymer and also act as sites for chemical modification. However, chitosan has certain limitations for use in controlled drug delivery and tissue engineering. These limitations can be overcome by chemical modification. Thus, modified chitosan hydrogels have gained importance in current research on drug delivery and tissue engineering systems. This paper reviews the general properties of chitosan, various methods of modification, and applications of modified chitosan hydrogels.

Cationic polymerization

10.1016/j.apsb.2012.07.004

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Citations (312)

Synthesis, characterization, and screening for analgesic and anti-inflammatory activities of new 1,3,4-oxadiazole derivatives linked to quinazolin-4-one ring

Medicinal Chemistry Research (2016)

Dhansay Dewangan Vinay Sagar Verma Kartik T. Nakhate Durgesh Kumar Tripathi Pranita Kashyap

Carbohydrazide

Anthranilic acid

Benzoyl chloride

Moiety

Semicarbazide

Carbon disulfide

Oxadiazole

10.1007/s00044-016-1641-8

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Citations (17)

Exogenous addition of silicon alleviates metsulfuron methyl induced stress in wheat seedlings

Plant Physiology and Biochemistry (2021)

Shruti Jain Padmaja Rai Jaspreet Singh Vijay Pratap Singh Rajendra Prasad

Meth-

Plant Physiology

10.1016/j.plaphy.2021.07.031

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Citations (16)

Significance of silicon uptake, transport, and deposition in plants

Journal of Experimental Botany (2020)

Rushil Mandlik Vandana Thakral Gaurav Raturi Suhas Shinde Miroslav Nikolić

Abstract Numerous studies have shown the beneficial effects of silicon (Si) for plant growth, particularly under stress conditions, and hence a detailed understanding of the mechanisms of its uptake, subsequent transport, and accumulation in different tissues is important. Here, we provide a thorough review of our current knowledge of how plants benefit from Si supplementation. The molecular mechanisms involved in Si transport are discussed and we highlight gaps in our knowledge, particularly with regards to xylem unloading and transport into heavily silicified cells. Silicification of tissues such as sclerenchyma, fibers, storage tissues, the epidermis, and vascular tissues are described. Silicon deposition in different cell types, tissues, and intercellular spaces that affect morphological and physiological properties associated with enhanced plant resilience under various biotic and abiotic stresses are addressed in detail. Most Si-derived benefits are the result of interference in physiological processes, modulation of stress responses, and biochemical interactions. A better understanding of the versatile roles of Si in plants requires more detailed knowledge of the specific mechanisms involved in its deposition in different tissues, at different developmental stages, and under different environmental conditions.

Deposition

10.1093/jxb/eraa301

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Citations (189)

Role of sedges (Cyperaceae) in wetlands, environmental cleaning and as food material

Sanjay Mishra Ashutosh Tripathi Durgesh Kumar Tripathi Devendra Kumar Chauhan

Cyperaceae

10.1002/9781119081005.ch18

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Citations (17)

Ca2+ sensor-mediated ROS homeostasis: defense without yield penalty

Trends in Plant Science (2022)

Nidhi Kandhol Vijay Pratap Singh Yizhou Wang Zhong‐Hua Chen Durgesh Kumar Tripathi

Plant Immunity

Homeostasis

10.1016/j.tplants.2022.05.003

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Citations (13)

VARIATION AND INTERRELATIONS AMONG TREE CHARACTERS, POD-SEED MORPHOLOGY AND POD BIOCHEMICAL CHARACTERS INPROSOPIS JULIFLORA(SW) DC.

Forests Trees and Livelihoods (2001)

J. C. Tewari L. N. Harsh N. K. Sharma Mamta Bohra Durgesh Kumar Tripathi

SUMMARY Two species of Prosopis—P. cineraria and P. puliflora are found in the Indian sub-continent. The first named is indigenous, while the latter was introduced around 130 years ago. P. juliflora or ‘vilayati babool’ in Hindi or ‘mesquite’ in English showed its promise soon after introduction and, due to its wide ecological tolerance and ability to colonise severe sites, mesquite has spread throughout the tropical arid and semi-arid regions of India. These regions account for 40 percent of the country's land surface. During the past few years P. juliflora has been described as a disaster by some critics, despite the fact that it provides the firewood needs of more than 80 percent of the population in rural areas of the tropical arid and semi-arid regions, and also provides nutritious pods for livestock. 44 potential plus trees were selected from a wide range of sites in Rajasthan, Uttar Pradesh and Gujrat states in order to study variation in tree growth, pod and seed morphology and pod pulp biochemical features. All the characters studied showed large variation. It is believed that mesquite can be improved by appropriate breeding methods and a short account is given of the work required on this species.

Firewood

Prosopis

Multipurpose tree

10.1080/14728028.2001.9752380

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Citations (8)

Advisory Board and Contents

Trends in Plant Science (2022)

Shuguo Hou Yanyan Huang Nidhi Kandhol Vijay P. Singh Yizhou Wang

Plant science

Editorial board

10.1016/s1360-1385(22)00193-5

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The Role of Salicylic Acid in Plants Exposed to Heavy Metals

Molecules (2020)

Anket Sharma Gagan Preet Singh Sidhu Fabrizio Araniti Aditi Shreeya Bali Babar Shahzad

Salicylic acid (SA) is a very simple phenolic compound (a C7H6O3 compound composed of an aromatic ring, one carboxylic and a hydroxyl group) and this simplicity contrasts with its high versatility and the involvement of SA in several plant processes either in optimal conditions or in plants facing environmental cues, including heavy metal (HM) stress. Nowadays, a huge body of evidence has unveiled that SA plays a pivotal role as plant growth regulator and influences intra- and inter-plant communication attributable to its methyl ester form, methyl salicylate, which is highly volatile. Under stress, including HM stress, SA interacts with other plant hormones (e.g., auxins, abscisic acid, gibberellin) and promotes the stimulation of antioxidant compounds and enzymes thereby alerting HM-treated plants and helping in counteracting HM stress. The present literature survey reviews recent literature concerning the roles of SA in plants suffering from HM stress with the aim of providing a comprehensive picture about SA and HM, in order to orientate the direction of future research on this topic.

Plant hormone

Environmental stress

Methyl salicylate

10.3390/molecules25030540

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Citations (279)

A Review on Biocompatible Hydrogel: Formulation Aspect and Evaluation

Research Journal of Pharmaceutical Dosage Forms and Technology (2018)

Shubham Tripathi Somnath Patel R. R. Patel Shraddha Pushpendra Pushpendra

Many predefined ways are now a day adopted to interface with biological tissues. One such significant class of biomaterials are hydrogels, which are defined as highly hydrated materials. Hydrogels are designed to absorb a large amount of water or biological fluids due to its three-dimensional, hydrophilic, polymeric network. They closely simulate natural living tissue, more so than any other class of synthetic biomaterials because of their high-water content, porosity, and soft consistency. They are chemically stable but may degrade and gradually disintegrate up to dissolve. Now a day they become more popular because of their unique property of flexibility and biocompatibility. Hydrogels can be produced by both natural and synthetic polymers. These polymers undergo physical and chemical cross-linking to produce hydrogels. Due to their resemblance to the living tissue, they have the immense possibility to use hydrogels in the biomedical field. Some of the well-known use of hydrogels include manufacturing contact lenses, hygiene products, tissue engineering scaffolds, drug delivery system and wound dressings. The current review article deals with information about the hydrogels, their various types, preparation methods along with an evaluation of the same. Also, the present study is performed for the motivation of the graduates towards publication and research. Hence, we have encouraged the graduates to prepare an informative article on the present subject.

Biocompatible material

10.5958/0975-4377.2018.00019.8

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Citations (5)