Dec 12, 2017. EBL lab has the opening for three graduate students and two postdoctoral associates. The graduate degree projects are i) Source tracking of phosphorus in a watershed, ii) Residual and recalcitrant phosphorus in soil, and iii) Degradation and source tracking of glyphosate in the environment. The postdoctoral projects are i) Fate of phytate and other inositol phosphates in the environment and ii) Development of a nanofertilizer using phosphorus recovered from agricultural wastes.  Please contact for Dr. Jaisi ( for further information.

Dec 5, 2017.  Drs. Jaisi and Adam Wallace (Geological Sciences) received a  grant award from USDA NIFA BNRE program on “Tracking glyphosate and its degradation products in the environment and biasing degradation towards less harmful products.

Nov 29, 2017.  Drs. Jaisi and Yan Jin (Plant and Soil Sciences) received a grant from USDA NIFA Nanotechnology program on “Towards global phosphorus security: Development of a novel nanofertilizer using phosphorus recovered from agricultural wastes”. This research will undertake synthesis, characterization, and field testing of nanofertilizer for phosphorus release.

Nov 23, 2017. Dr. Hezhong Yuan successfully completed his visiting scholar tenure and returned back to his home institution in China. All the best for your successful future career, Hezhong!

Oct 22-25, 2017. EBL organized sessions and presented at the 2017 ASA-CSSA-SSSA Annual Meeting in Tampa, FL. Dr. Jaisi organized two sessions: 1. Approaching Peak Phosphorus and Seeking Alternatives: Linking Reuse, Speciation, and Availability (with James Ippolito from Colorado State University), and 2: Soil Enzymes: Methods of Analyses and Mechanisms (with Andrew Margenot from University of Illinois- Urbana Champaign and Sanjai Parikh from UC-Davis). Three oral presentations were given by Dr. Mingjing Sun (Enzyme Specificity for the Degradation of Phytate: Isotope As a Proxy for Tracking Active Enzyme in the Environment), Qiang Li (Seasonal Variation and Potential Sources of Particulate Phosphorus in the Susquehanna River in the Chesapeake Bay Watershed) and Gulcin Tosun (Synthesis and Characterization of a Novel Phosphorus Nanofertilizer Extracted from Agricultural Wastes).

Sept 14, 2017. Dr. Jaisi received an NSF fellowship. This fellowship was highlighted in the press release from National Science Foundation, and from the University of Delaware through UDaily news. This fellowship entitled “Microscale processes controlling speciation and transformation of phosphorus in soils”  will allow developing novel methods of measuring isotopes in soils through visiting California Institute of Technology, Pasadena, CA.

Jul 21, 2017. Dr. Jaisi received a collaborative NSF award with Dr. Ludmilla Aristilde at Cornell University on “Supramolecular recognition in the biocatalytic transformation of organic phosphorus-containing environmental matrices”‘. This project will undertake mechanistic and modeling research on the degradation of selected major organic P compounds in the environment.

Jul 14, 2017. Dr. Jaisi gave a presentation on ‘The sources and cycling of phosphorus in an agricultural runoff dominated watershed‘ in Isotopes 2017 conference in Locarno, Switzerland.

Jun 28, 2017. Dr. Jaisi gave an ‘invited’ talk at the Third International Conference on Water Resources and Environment (WRE2017) at Qingdao, China.

Jun 21, 2017. Dr. Jaisi gave a ‘keynote’ talk at ‘ The 29th Xiangshan Forum: Biogeochemistry of Coastal Wetland Ecosystems‘ at Xiamen University, China.

May 22, 2017.  Hamed Arfania joins the EBL team as a visiting PhD student from Urmia University in Iran. Welcome, Hamed!

May 16, 2017. Dr. Jaisi promoted to associate professor with tenure.

Apr 2-6, 2017. Hui Li and Gulcin Tosun gave oral presentations of their research on glyphosate and polyphosphate at the 253rd National Meeting of American Chemical Society in San Francisco, CA.

Mar 24, 2017. Dr. Jaisi gave an invited talk on ‘Transformation, cycling, and loss of phosphorus from agricultural soils: Results from 18O labeling and natural abundance isotope studies” in the Department of Biosystem Engineering, Auburn University, Auburn, AL.

Feb 1, 2017. Ruifang Hu joined the EBL team as a graduate student. Welcome, Ruifang! Looking forward to your breakthrough research on phytate founded on your strong chemistry background!

Jan 24, 2017. Dr. Jaisi’s NSF CAREER award news is published in UDaily: “UD’s Jaisi wins NSF CAREER Award for research on sources, the fate of phytate in soils.

Dec 16, 2016. Dr. Jaisi gave an invited talk on ‘Source tracking of phosphorus in a coastal estuary to the Chesapeake Bay” in the Department of Natural Resource and Environmental Control (DNREC), Dover, DE.

Dec 16, 2016. Dr. Jaisi received a  new USDA NIFA grant (with Dr. Donald Sparks). This research aims to better understand sources, chemical forms, and stability of recalcitrant and residual phosphorus pools in agricultural soils.

Dec 15, 2016. Dr. Jaisi is awarded a new USDA Sun Grant (with Drs. Kaushalendra Singh (PI), Samir Khanal (co-PI) and Ajay Shah (co-PI) onNovel bio-chars production from northeastern forestry feedstocks and their land application to enhance the environmental sustainability of agricultural production systems“.

Nov 12, 2016. Dr. Jaisi received the National Science Foundation CAREER grant on the ‘Fate of inositol phosphates in soils“. This research will address current conundrum on accumulation vs degradation of phytate, formation/transformation of stereoisomers, and degradation of various inositol phosphates in soils and waters.   

Nov 11, 2016. Dr. Hezhong Yuan joined the EBL as the visiting scholar. Hezhong is an assistant professor at Nanjing University of Information Science and Technology, Nanjing, China· Welcome Dr. Yuan; looking forward to your productive academic experience at UD!

Nov 6-9, 2016. Dr. Jaisi attended the CSA-CSSA-SSSA meeting in Phoenix, AZ to give a talk on ‘Distinct pathways of phosphorus cycling in the upstream and downstream sections of a creek in an agricultural runoff dominated watershed‘.

Oct 10, 2016. Dr. Yu Wang joined the EBL as the ‘first’ visiting scholar. She is an assistant professor at the Institute of Soil Science, Chinese Academy of Sciences, Nanjing· Welcome Dr. Wang!

Sept 5-9, 2016. Dr. Jaisi gave a talk on ‘Phytate degradation by different phosphatase enzymes: Contrasting kinetics, isomer compositions, decay rates, pathways, and isotope compositions‘ in Organic Phosphorus Workshop in English Lakes, UK.

Aug 21-25, 2016. Dr. Jaisi presented an invited talk to American Chemical Society (ACS) Fall Meeting in Philadelphia. The talk title was “Mechanisms and pathways of phytate degradation: Application of NMR, HPIC and stable isotopes to track products, pathways, and isotope effects”. This abstract was chosen for a Sci-Mix presentation, an entire ACS meeting-wide event.

July 22, 2016. Yuge Bai successfully defended her MS thesis on the ‘Synthesis and degradation of polyphosphate: Scaling-up of molecular reactions to understand phosphorus removal in wastewater treatment plants’. Intriguing findings in a new field of research for the EBL team- well done! All the best for your PhD research at the University of Tubingen under Dr. Andreas Kappler!

July 11, 2016. Dr. Jaisi gave an invited talk on the ‘Transformation, cycling, and loss of phosphorus from agricultural soils: Results from 18O labeling and natural abundance isotope studies’ at Huazhong Agricultural University, Wuhan, China.

July 11, 2016. Ha Vu started her first job as the QC and R&D Chemist at UFloor System Inc in Dover. All the best for successful career at UFloor!

July 8, 2016. An invited presentation on the ‘Sources and pathways of phosphorus cycling in the Chesapeake Bay: Results from isotopes, EXAFS, NMR, and Mossbauer analyses’ was given by Dr. Jaisi at the Institute of Soil Science (ISSAS), Chinese Academy of Sciences, Nanjing, China.

July 8, 2016. Dr. Jaisi gave an invited presentation on the ‘Impact of agricultural runoff on the fate and pathway of phosphorus cycling in a coastal estuary’ at the Nanjing Institute of Geography and Limnology (NIGLAS), Chinese Academy of Sciences, Nanjing, China.

July 7, 2016. Dr. Jaisi gave an invited presentation onO-18 stable isotope geochemistry: A means of differentiating biologically mediated and abiotic reactions in extant and extinct environments’ at Nanjing University, Nanjing, China.

July 6, 2016. An invited presentation on the ‘Sources and new pathway of phosphorus cycling in the Chesapeake Bay: An evidence from phosphate isotope ratios’ was given by Dr. Jaisi at Xiamen University, Xiamen, China.

July 4, 2016. Dr. Jaisi gave an invited presentation on ‘Phosphate oxygen isotopes: A tracer for phosphorus cycling in agricultural soils’ at the Institute of Urban Environment, Chinese Academy of Sciences Xiamen, China.

July 1, 2016. Fatemeh Izaditame joined the EBL as a PhD student. Welcome, Fatemeh! Looking forward to your future research at EBL!

June 28, 2016. Dr. Jaisi presented a research talk on ‘Fate of particulate phosphorus in river estuaries in the Chesapeake Bay’ in Goldschmidt 2016 Conference in Yokohama, Japan.

June 15, 2016. Sunendra Joshi successfully defended his PhD dissertation entitled ‘Biogeochemical cycling of phosphorus in the Chesapeake Bay and its watershed: Insights from phosphate oxygen isotope ratios”. Impactful research from the EBL flag bearer, Dr. Joshi! Good luck with your postdoctoral research under Dr. David McNear at the University of Kentucky!

June  1, 2016. Tristum WIlliams joined EBL as a EPSCoR summer intern. EBL welcomes you, !

June 1, 2016. Gulcin Unal Tosun joined the EBL team as a PhD student. Welcome Guclin! Looking forward to your research on nanomineral!

May 27, 2016. UD Commencement: Sunendra Joshi (PhD degree); Kristi Bear (MS degree), Yuge Bai (MS degree), and Ha Vu (BS degree) rolled in on the commencement ceremony! A very proud moment for the EBL team!

May 20, 2016. Kristi Bear successfully defended her thesis on: Tracking sources of particulate phosphorus in river waters: A case study in East Creek, a Chesapeake Bay watershed. Well done and well received thesis research! Congratulations! All the best in your career at the USDA NRCS!

March 30, 2016. Ha Vu‘s P NMR research on wastewater polyphosphate published in the March newsletter of the Delaware Water Resource Center  Congratulations, Ha– you are an outstanding undergrad!

March 29, 2016. Hui Li received ‘2016 Graduate Fellow Award’ from the University of Delaware’s Office of Graduate and Professional Education. Congratulations, Hui!

March 22, 2016. UDaily published a new article on the “Degradation and source tracking of glyphosate“, one of the most common commercial herbicides used for agricultural and urban applications. This news has been posted by ‘Science DailyUniversity of Western Brittany Newsfeed, Phys.Org news, Science newsline, Irish Toxicology Society, Radio Astronomy news, CNRS-France, among many others.

March 15, 2016. CSA News Magazine published a ‘society science’ news article on “Does Phytate Loading Stimulate Phytate-mineralizing Bacteria“. This news summarizes unconventional relationship found among phytate, phytate mineralizing bacteria (PMBs), and β-propeller phytase (BPP) genes along an estuarine gradient in the Chesapeake Bay watershed (Stout et al., SSSAJ, 2016, 80, 84-96).

Dec 10-15, 2015. Dr. Jaisi chaired a session in 2015 AGU Fall Meeting ‘New Insights on Nutrient Sources and Biogeochemical Processes in Surface Waters as Revealed by Advanced Techniques and In Situ Optical Sensors’ (with John Saraceno and James Shanley from USGS, and Gurpal Toor from U Florida).

Dec 10-15, 2015. EBL team presented two talks in 2015 AGU Fall Meeting entitled i) Remineralization vs reductive dissolution pathway of phosphorus cycling: A case study in the Chesapeake Bay, and ii) Effects of low-molecular-weight organic acids on the dissolution of hydroxyapatite nanoparticles in batch and column systems: A perspective from phosphate oxygen isotope fractionation.

Nov 23, 2015. Dr. Jaisi gave an invited talk on the ‘Isotope effect of nutrient cycling in nutrient-enriched ecosystem’ at the Department of Biological and Environmental Engineering at Cornell University, Ithaca, NY. 

Nov 15-18, 2015. Dr. Jaisi chaired two sessions in 2015 ASA-CSA-SSSA meeting: i) Tracking Legacy Phosphorus in Lakes and Rivers (co-chaired with Satish Gupta and Carl Rosen from U Minnesota), and ii) Environmental Fate of Chemicals of Emerging Concern (co-chaired with Robert Lerch from USDA-ARS and Gurpal Toor from U Florida).

Nov 15-18, 2015. Five (5) research presentations were made in the 2015 ASA-CSA-SSSA meeting in Minneapolis by EBL teams. It included presentations by Jiying Li, Sunendra Joshi, and Kristi Bear in Tracking Legacy Phosphorus in Lakes and Rivers and Deb Jaisi and Hui Li in Environmental Fate of Chemicals of Emerging Concernsessions. Details of the talks and recorded presentations are included in the links.

Nov 1-4, 2015. Four (4) research presentations were made in the Geological Society of America (GSA) Annual Meeting in Baltimore by EBL teams in the session Mechanistic Insights into the Biogeochemical Processes Controlling Phosphorus Transport and Cycling. Details of the talks by the EBL team members and recorded presentations are included in the link.

Sept 7, 2015. EBL lab hit double-digit publications in 2015. Congratulations EBL authors for being persuasive and productive researchers!

Sept 2, 2015. How about nano-fertilizer? UDaily published news on the promise of nanofertilizer on slow P release, conditioning soil pH, and less P loss to the environment. This news is based on the recent ES&T paper by Denjung (Kevin) Wang that shows the limited mobility of these nanoparticles in the saturated media.

Sept 1, 2015. Multi-nuclei NMR results aimed at investigating internal cycling of phosphorus in the water column in the Chesapeake Bay is selected as the ‘showcase project‘ among 2015 user projects in the User Executive Committee Meeting in the Environmental Molecular Sciences Laboratory (EMSL) at Pacific Northwest National Laboratory, Richland, WA.

Aug 29, 2015. Dr. Jaisi gave an invited presentation on the ‘Unexpected pathway of phosphorus cycling in the Chesapeake Bay: Challenges and opportunities’ to 8th ASNEngr/CAN-USA Joint Annual Conference in North Brunswick, NJ.

Aug 16-21, 2015. Three presentations (two oral and one poster) were made in Goldschmidt 2015 conference  in Prague, Czech Republic. One of them was ‘invited‘ presentation on the Mechanisms and pathways of glyphosate degradation.

Aug 5, 2015. Qiang (Ted) Li joined the team as a PhD student. Welcome Ted!

July 28-29, 2015. Dr. Jaisi presented research updates on two USDA NIFA grants to the USDA PD meeting in Greensboro, NC.

July 17, 2015. CSA News published a news article onMobilization of Phosphorus from Creek Sediments“. This news highlights the relative importance and variability of various physico-chemical and biological parameters on the retention and mobilization of phosphorus from creek sediments. Scientific results are based on our recent publication (Upreti et al. 2015, SSSAJ, 79, 826–837).

June 15, 2015. Pacific Northwest National Laboratory (PNL), published a news article on Coastal Contamination: Phosphorus recycling in estuary dead zone. This news is based on our recent findings on the remineralization pathway of P cycling in the Chesapeake Bay.

May 19, 2015. ES&T featured ‘Remineralization pathway of P cycling on the cover page of (volume 49:10). Congratulations, Sunendra! Way to go!

May 10, 2015. Nirmal Dhakal and Camy Denny (EPSCoR Intern) joined EBL lab as the summer interns. Welcome you both!

April 27, 2015. Ha Vu awarded with the 2015-16 DWRC (Delaware Water Resource Center) Internship, a highly competitive scholarship for water resource related research for University of Delaware’s undergraduate students. 

March 21-27, 2015. Dr. Jaisi  and Kristi Bear attended ACS Spring Meeting in Boulder, CO. Two presentations were made on Chesapeake Bay P sources and cycling and the recalcitrant P pools in the session honoring Dr. Donald Sparks for his Geochemistry Medal.

February 17, 2013. UDaily published a news on “ UD-led study suggests new pathway for phosphorous cycling in Chesapeake Bay” highlighting the ‘remobilization’ pathway of phosphorus cycling in the Bay. This news has been picked up by many local and regional newspapers, radio news, and professional organization webpages.

Feb 15, 2015. Avula Balakrishna (Bala) joined the lab as a postdoctoral associate. Welcome, Bala! His research will focus on synthesis and  degradation of selected organophosphorus compounds and modification of  functional groups in selected compounds.

Feb 6, 2015. Dr. Jaisi gave an invited talk on ” Nutrient sources and Chesapeake Bay water quality issues” at the Department of Plant and Soil Sciences, University of Vermont, VT. 

Jan 30, 2015. Drs. Jaisi, Jiying Li, and Sunendra Joshi attended “The State of the Science of Phosphorus Symposium” at Wye Mills, MD.  It included series of talks on phosphorus transport, soil dynamics, legacies, modeling, and its impact on water quality.

Jan 29, 2015. A landmark paper on organic matter remineralization pathway of phosphorus cycling in the Chesapeake Bay just accepted for publication in the ES&T. Well done for this high quality and impactful research, Sunendra!

Jan 15, 2015. Mingjing Sun joined the lab as a postdoctoral associate. Welcome, Mingjing! Her research will focus on phytate degradation and the pathway of degradation using a series of advanced research tools including HPLC, 31P NMR and IRMS.

Nov 2-7, 2014. Dr. Jaisi along with Dr. Xionghan Feng and Dr. Donald Sparks chaired a session entitled “Advanced Molecular Techniques Characterizing Soil Biogeochemical Processes“. It included 23 oral presentations and 11 poster presentations, among which 5 were given by prominent scientists in the field as ‘invited’ and ‘keynote’ speakers.

Nov 2-7, 2014. Sunendra Joshi and Hui Li gave oral presentations of their research on ‘sources and cycling of phosphorus in rivers’ and ‘isotope effect of sorption and desorption to Fe- and Mn-oxides’, respectively on the SSSA Meeting in Long Beach, CA.

October 30, 2014. Dr. Jaisi and Dr. Jin are awarded with a new research grant from USDA. This research will investigate the fate of particulate and colloidal P in the Chesapeake Bay watershed.

October 28-29, 2014. Dr. Jaisi attended USDA NIWQP and NIFA program PD meeting in Washington DC. He gave an oral and a poster presentations related to the progress made on AFRI grants.

Oct 17, 2014. Ha Vu awarded with the 2014-2015 DENIN Environmental Scholarship, a highly competitive scholarship for University of Delaware’s finest undergraduate students.

Oct 16, 2014. Dr. Jaisi gave an invited talk entitledRemineralization of phosphorus from organic matter:  A predominant pathway of phosphorus cycling in the Chesapeake Bay” at the Department of Geological Sciences, University of Delaware, Newark, DE.

Sept 26, 2014. Dr. Jaisi gave an invited talk entitled “Scaling up of molecular reactions to ecosystem processes: A case study of Chesapeake Bay” at the Department of Plant and Soil Sciences, University of Delaware, Newark, DE.

Sept 24, 2014. Dr. Jaisi gave invited talks entitled” Hypoxia driven change in the phosphorus cycling in the Chesapeake Bay: Exploring sources of phosphorus sustaining dead zone and refueling eutrophication” at the Department of Earth & Environmental Sciences, Rutgers University-Newark, NJ.

Aug 15, 2014. Yuge Bai  joined the lab as a graduate student. Welcome Yuge!

Aug 10, 2014. Dr. Jiying Li  joined the lab as a postdoctoral associate. Jiying completed her PhD degree from the University of Minnesota. Her research will include sediment P flux in the Chesapeake Bay. Welcome, Jiying!

Aug 4, 2014. Jiangqi Wu successfully defended her MS thesis research on inositol phosphate. Well done research, Jiangqi! All the best in your future career in China!

Jun 15-July 4, 2014. Dr. Jaisi gave invited talks at Yonsei University, Seoul, Korea; Huazhong Agricultural University, Wuhan, China; Tribhuvan University, Kathmandu, Nepal; and Nepal Geological Society, Kathmandu, Nepal.

June 25, 2014. Dr. Dengjun (Kevin) Wang  joined the lab as a postdoctoral associate. Kevin completed his PhD degree from Chinese Academy of Sciences, Nanjing, China. His research will investigate the fate of environmental nanoparticles including apatite in sand and soil columns. Welcome, Kevin!

June 10, 2014. Dr. Jaisi gave an oral presentation on phosphorus transformation in agricultural soils in the 20th World Soil Congress, Jeju, South Korea.

June 9, 2014. Sunendra Joshi presented his poster in on ‘Phosphate oxygen isotope ratios  as a tracer for biogeochemical cycling of phosphorus in Chesapeake Bay sediments’ in 2014 Goldschmidt conference in Sacramento, CA.

June  10, 2014. Two summer interns joined the lab: Ha Vu, a EPSCoR intern and Saswat Risal, a high school student. EBL welcomes you both!

May 31,  2014. Awet Negusse graduated. Vice President Joe Biden delivered the keynote address on the 165th Commencement.  Congratulations, Awet!

May 27,  2014. Kristi Bear joined as a graduate student in the lab. She will undertake research on legacy phosphorus. Welcome Kristi!

May 19-21, 2014. Dr. Jaisi along with Dr. Qiaoun Huang (Huazhong Agricultural University, Wuhan, China) organized a session in Clay Mineral Society Annual Meeting in College Station, TX. He gave a talk on “Microbial Cycling of phosphorus at the mineral-water interface”.  Dr. Jaisi also served as the chair of the student award committee that handled evaluation of all students’ oral and poster presentations.

May 7-9, 2014. Dr. Jaisi served as a panel member of Geobiology and low-temperature geochemistry division of the National Science Foundation (NSF).

May 6, 2014. Dr. Jaisi gave an inivited talk on ‘Sources and biogeochemical cycling of phosphorus in the Chesapeake Bay watershed’ at Delaware Nutrient Commission meeting, in the Delaware Department of Agriculture, Dover, DE.

April 13, 2014. Dr. Lisa Stout‘s paper on “Microbial activities and phosphorus cycling: an application of oxygen isotope ratios in phosphate” accepted for publication in Geochimica et Cosmochimica Acta. Congratulations, Lisa!

March 26, 2014. Dr. Jaisi appointed as the associate editor of Clays and Clay Minerals (

March 20, 2014. EBL is awarded a new research grant by soybean boards from Delaware and Maryland. This research will continue research on sources and cycling of P in the Chesapeake Bay watershed.

Jan 29, 2014. Dr. Jaisi gave a talk on ‘Sources and biogeochemical cycling of phosphorus in the Chesapeake Bay watershed’ at the University of Minnesota Department of  Soil, Water and Climate.

Jan 20, 2014. EBL wet chemistry laboratory moved to a Worrilow 208.

Dec 4, 2013. Dr. Jaisi, Dr. Lisa Stout, and Sunendra Joshi attended a symposium on ‘Monitoring the Results of Investments in Water Quality Improvements:  Are we moving the needle?” in Dover, DE.

Oct 28, 2013. Prajwal Paudel joined the lab as a research assistant. He completed his undergraduate degree in Chemistry from University of Alabama in 2013. Welcome, Prajwal!

Oct 21-24, 2013. Dr. Jaisi attended AGU Chapman conference on ‘Soil-mediated Drivers of Coupled Biogeochemical and Hydrological Processes Across Scales’ in Tucson, AZ.

Oct 19, 2013. Sunendra Joshi is selected as the recipient of the Donald L. and Joy G. Sparks Graduate Fellowship Award. Well deserved honor- congratulations, Sunendra!!

Aug 16, 2013EBL has opening for a postdoctoral research associate and a graduate student on P cycling in watershed. Please contact Dr. Jaisi for this position.

Aug 15, 2013.  Hui Li joined the lab as a graduate student. Welcome, Hui!

July 25, 2013. Dr. Jaisi is awarded with a research grant from USDA. This research will investigate P cycling and release from a watershed.

June 28. Kiran Upreti successfully defended her MS thesis and completed her degree. Congratulations, Kiran!

June 1, 2013. Awet Negusse and Thanh Nguyen joined the lab as summer interns.  Awet is an organic chemistry major at UD and Thanh is a microbiology major at Delaware Technical and Community College (DTCC). Welcome you both!

May 31,  2013. EBL lab bade Dr. Xiaona Li a warm farewell for her move to a new career at Montclair University, NJ. You will be missed, but all the best, Xiaona.

May 21,  2013. Dr. Jaisi is awarded with the American Chemical Society Petroleum Research Fund (ACS-PRF) ‘New Investigator’ grant on biologically catalyzed mineral transformation reaction.

May 7,  2013. Delmarva Farmers newspaper (American Farm Publications Ltd.) published a news on the importance of P source tracking in the Chesapeake Bay. Read the news here.

May 1, 2013. Dr. Sitindra Dirghangi joined the EBL lab as a postdoctoral research associate. He just completed his defense from  Yale University.  Welcome, Sitindra!

April 7, 2013. Dr. Jaisi gave a talk on ‘application of stable isotopes to study phosphorus biogeochemistry’ in the 245th ACS National Meeting held in New Orleans, Louisiana.

February 27, 2013. UDaily news articleisotope fingerprints:Jaisi laboratory tracks chemicals in water, farmland throughout Mid-Atlantic” highlighted the major research projects related to phosphorus source tracking in the EBL laboratory.

November 30, 2012. Kiran Upreti gave a talk on ‘Mobilization of phosphorus from river sediments in the Chesapeake Bay watershed’ in the Department of Plant and Soil Sciences.

November 15, 2012EBL has an opening for a postdoctoral research associate on P cycling and transport in rivers. Please contact Dr. Jaisi for this position.

October 26, 2012. EBL is awarded with a research grant from soybean boards from Delaware, Maryland and Pennsylvania. This research will focus on sources and cycling of P in the Chesapeake Bay watershed.

October 22-24, 2012. Dr. Jaisi, Sunendra Joshi, and Kiran Upreti attended Soil Science Society Meeting in Cincinnati, OH. Talk and poster presentations by EBL members were well received by many soil scientists and other members of the society.

October 18, 2012 – “Inside Delaware” published EBL research as Sustaining Our Region: Chesapeake Bay Conservation- Tracing Phosphorus Pollution. This newletter is mailed to 7,000 donors and prospective donors.

September 6, 2012. Installation of isotope ratio mass spectrometer (IRMS). Thermo Delta V mass spectrometer along with Thermochemical Elemental Analyzer (TC/EA), Elemental Analyzer (EA), and Gasbench (GB) were installed and calibrated. A three week long exhaustive process of calibration was successfully completed on Sept 6. The EBL lab now has the capability to measure series of isotopes (H, C, N, S, and O of H2O, PO4, SO4, NO3, CO3).

September 1, 2012. Dr. Xiaona Li joined the EBL lab as a postdoctoral research associate. She graduated from Stony Brook University and worked as postdoctral researcher at Rutgers before joining UD. Welcome, Xiaona!

August 20, 2012. Jiangqi Wu joined the group as a graduate student. Welcome, Jiangqu!

August 2, 2012. Kiran Upreti successfully defended her MS thesis proposal. Congratulations, Kiran!

June 25-29, 2012. Dr. Jaisi gave an invited talk entitled ‘Biogeochemical cycling of phosphorus in soils and sediments’ in ISOPHOS 2012 conference in Switzerland.

June 12, 2012. UDaily published a news article about UDRF grant awardees this year.

June 4, 2012 – Delaware First Media news published a news article about Chesapeake Bay dead zone featuring research in Jaisi Lab.

May 11, 2012. Dr. Jaisi is awarded with a UDRF (University of Delaware Research Foundation) grant. This research will focus on the variation of terrestrial P sources entering the Chesapeake Bay.

May 9, 2012. UDaily  published the news about research scope of the Powe Award.

April 6, 2012. Dr. Jaisi is awarded with the Powe Junior Faculty Enhancement Award from Oak Ridge Associated Universities (ORAU). This research seeks to identify P source and their mixing in the Chesapeake Bay.

March 21, 2012. Dr. Jaisi gave a talk on “Environmental Biogeochemistry Research on Phosphorus Cycling” in the DENIN External Advisory Board meeting in Newark, DE.

March 12-15, 2012 – Dr. Jaisi attended a USGS Cape Cod Toxics meeting and gave a talk entitled “Phosphorus cycling in the Cape Cod aquifer: Insights from oxygen isotopes in phosphate” in Boulder, CO.

February 1, 2012. Dr. Jaisi and Dr. Sparks are awarded with a seed grant from Delaware EPSCoR. This research will focus on P cycling in the Chesapeake Bay.

January, 10, 2012. Dr. Jaisi is awarded with a research grant from USDA. This research will investigate P cycling in agricultural soils.

January 5, 2011. EBL has an opening for a postdoctoral research associate to work on the research projects related to plant uptake and interspecies transfer of phosphorus in agricultural soils. Please contact Jaisi for this position.

November 25, 2011. EBL is looking for a motivated graduate student (MS or PhD). Please contact Jaisi for this position.

November 15, 2011. Dr. Jaisi gave an invited talk to Marine Science and Policy Department at UD Lewes entitled : Sources and cycling of phosphorus in marine environments: insights from oxygen isotopes in phosphate.

November 10, 2011. Dr. Jaisi gave an invited talk to Geological Sciences Department at UD entitled: Phosphorus cycling in the Cape Cod aquifer, MA: Insights from oxygen isotope ratios in phosphate.

August 24, 2011. Dr. Jaisi gave an invited talk to Rhizosphere workshop entitled: Abiotic and biotic pathways of nutrient cycling’ at UD.

June 2011. Dr. Jaisi’s paper on the “biological transformation of smectite into illite” just published in Clays and Clay Minerals. This paper is featured in the journal cover page. It shows an SEM image of various mineral phases produced as a result of Fe(III) reduction and the formation of illite.

June 2011. Dr. Jaisi’s paper on “biological and abiotic cycling of P in mineral-water interface” just published in Environmental Science & Technology.

July 12, 2011. EBL welcomed Kiran Upreti as a MS student. She graduated from Asian Institute of Technology in 2010.

June 8, 2011. UDaily news about Dr. Jaisi joining the department.

May 17, 2011. Sunendra Joshi became the first student of the EBL lab. Sunendra graduated from Kurukshetra University in 2008.

April, 2011. Order of isotope mass spectrometer was placed. Appreciation goes to the PLSC department and the CANR college providing funding to purchase a mega equipment in the startup budget.

January 1, 2011. Environmental Biogeochemistry Laboratory (EBL) formally kicked off on the day 1 when Dr. Jaisi joined the Department of Plant and Soil Science at the University of Delaware.