Biolife Plasma ServicesNewPlasma Center Registered Nurse – BSN Required Biolife Plasma ServicesPlasma Center Registered Nurse – BSN RequiredSalisbury, MD$35.20–$48.40 / hourSee Biolife Plasma Services Terms & Conditions at https://www.biolifeplasma.com/us/legal/terms-and-conditions-of-use and Privacy Policy at https://www.biolifeplasma.com/legal/privacy-notice and SonicJobs Privacy Policy at https://www.sonicjobs.com/us/privacy-policy and Terms of Use at https://www.sonicjobs.com/us/terms-conditions. The actual hourly wage offered may depend on a variety of factors, including the qualifications of the individual applicant for the position, years of relevant experience, specific and unique skills, level of education attained, certifications or other professional licenses held, and the location in which the applicant lives and/or from which they will be performing the job.
Encompass Health Rehabilitation Hospital of SalisburyNewRegistered Nurse Encompass Health Rehabilitation Hospital of SalisburyRegistered NurseSalisbury, MDOur achievements include being named one of the "World's Most Admired Companies" and receiving the Fortune 100 Best Companies to Work For® Award, among other accolades, which is nothing short of amazing. Encompass Health is a trusted leader in post-acute care with over 150 nationwide locations and a team of 36,000 exceptional individuals and growing!
Aveanna HealthcareNewRegistered Nurse (RN) Aveanna HealthcareRegistered Nurse (RN)Selbyville, DESee Aveanna Healthcare Terms & Conditions at https://www.aveanna.com/privacypolicy.html and Privacy Policy at https://www.aveanna.com/privacypolicy.html and SonicJobs Privacy Policy at https://www.sonicjobs.com/us/privacy-policy and Terms of Use at https://www.sonicjobs.com/us/terms-conditions. As an employer accepting Medicare and Medicaid funds, employees must comply with all health-related requirements in all relevant jurisdictions, including required vaccinations and testing, subject to exemptions for medical or religious reasons as appropriate.
Biolife Plasma ServicesNewRegistered Nurse (RN) – BSN Required Biolife Plasma ServicesRegistered Nurse (RN) – BSN RequiredSalisbury, MD$35.20–$48.40 / hourSee Biolife Plasma Services Terms & Conditions at https://www.biolifeplasma.com/us/legal/terms-and-conditions-of-use and Privacy Policy at https://www.biolifeplasma.com/legal/privacy-notice and SonicJobs Privacy Policy at https://www.sonicjobs.com/us/privacy-policy and Terms of Use at https://www.sonicjobs.com/us/terms-conditions. The actual hourly wage offered may depend on a variety of factors, including the qualifications of the individual applicant for the position, years of relevant experience, specific and unique skills, level of education attained, certifications or other professional licenses held, and the location in which the applicant lives and/or from which they will be performing the job.
TRS HealthcareNewTravel Nurse RN - Med/Surg / Telemetry - $1,945 per week in Onancock, VA TRS HealthcareTravel Nurse RN - Med/Surg / Telemetry - $1,945 per week in Onancock, VAOnancock, VA$1,945–$1,945TRS give nurses the best of both worlds - the adventure of experiencing new locations with the comfort security of a company founded by nurses. TRS Healthcare is seeking a Registered Nurse who is licensed to work in VA, and has Med/Tele experience.
TRS HealthcareNewTravel Nurse RN - Oncology - $2,178 per week in Onancock, VA TRS HealthcareTravel Nurse RN - Oncology - $2,178 per week in Onancock, VAOnancock, VA$2,178–$2,178TRS give nurses the best of both worlds - the adventure of experiencing new locations with the comfort security of a company founded by nurses. TRS Healthcare is seeking a Registered Nurse who is licensed to work in VA, and has Oncology experience.
OptumNewPatient Care Manager RN OptumPatient Care Manager RNSalisbury, MD$89,680–$134,520 / yearCoordinates and supervises an interdisciplinary team of staff to assure the continuity of high quality care to home health patients assigned to the team's area in accordance with physician prescribed plan of care, and all applicable state and federal laws and regulations. As members of the Optum family of businesses, we are dedicated to helping people feel their best, including our team members who create meaningful connections with patients, their families, each other and the communities we serve.
Trusted HealthNewMedical Surgical / Telemetry Unit - Travel Registered Nurse Trusted HealthMedical Surgical / Telemetry Unit - Travel Registered NurseOnancock, VA$1,990–$1,9906 months gap required between for Staff at Program: Qualivis Program - Riverside Health and no current placement allowed at Program: Qualivis Program - Riverside Health. Trusted has streamlined the travel nursing experience by enabling nurses to apply directly to jobs without the need for recruiters.
KPG HealthcareNewTravel Nurse RN - Home Health - $2,244 per week in Salisbury, MD KPG HealthcareTravel Nurse RN - Home Health - $2,244 per week in Salisbury, MDSalisbury, MD$2,244–$2,244The primary factor differentiating KPG Healthcare from other recruitment firms is the quality of our experience, the breadth of our industry network, and the creativity that we apply to finding the perfect placement options. KPG Healthcare is a Staffing Firm that provides diverse Supplemental and Permanent Healthcare Staffing solutions to a wide range of Clients throughout the Nation.
Fusion Medical StaffingNewTravel Oncology RN Fusion Medical StaffingTravel Oncology RNOnancock, VA$2,042–$2,172Develop and implement individualized education plans for cancer patients and families, addressing treatment regimens, side effect management, and self-care strategies . This role involves administering cancer treatments, managing side effects, and providing education and emotional support to patients and families.
Cynet HealthNewTravel Nurse RN - Operating Room in Berlin, MD Cynet HealthTravel Nurse RN - Operating Room in Berlin, MDBerlin, MDJob Title: Registered Nurse (RN) - Operating Room Profession: Registered Nurse Specialty: Surgical Services Duration: Full-Time Shift: 10 Hour Days Hours per Shift: 36 hours per week Experience: Minimum years of experience required License: Active RN license Certifications: American Heart Association Healthcare Provider CPR and ACLS Must-Have: - A Bachelor's in Nursing (BSN) degree is required or must be obtained within 5 years from date of hire. Nursing care encompasses the biophysical, psychosocial, cultural, self-care, teaching, and continuing care needs of patients as appropriate to age and diagnosis.
Cynet HealthNewTravel Nurse RN - Medical-Surgical in Salisbury, MD Cynet HealthTravel Nurse RN - Medical-Surgical in Salisbury, MDSalisbury, MDJob Title: Cardiac Registered Nurse Profession: Registered Nurse Specialty: Cardiac Duration: Full-time Shift: 12-hour nights Hours per Shift: 36 hours per week Experience: Minimum years of experience required License: Licensed and currently registered to practice as a Registered Nurse Certifications: American Heart Association Basic Life Support (BLS) required. The Cardiac Registered Nurse provides nursing care to patients requiring continuous telemetry monitoring, cardiac infusions, and pre and post-operative procedural care.
Magnet MedicalNewTravel Nurse RN - Med/Surg / Telemetry - $1,972 per week in Onancock, VA Magnet MedicalTravel Nurse RN - Med/Surg / Telemetry - $1,972 per week in Onancock, VAOnancock, VA$1,972.43–$1,972.43The RN in this role is responsible for administering medications, monitoring vital signs and heart rhythms, performing assessments, collaborating with healthcare teams, and providing patient education. Wound Care and Post-Surgical Care: Provide post-operative care for surgical patients, including monitoring incision sites, managing drains, and ensuring proper wound healing.
SkyBridge HealthcareNewTravel Nurse RN - Home Health in Cambridge, MD SkyBridge HealthcareTravel Nurse RN - Home Health in Cambridge, MDCambridge, MDWhether you are an experienced traveler, or this is your first travel position, SkyBridge Healthcare puts our Nurses first and ensures a seamless travel experience. SkyBridge Healthcare wants the best for our employees, and we are dedicated to helping professionals land their ideal travel assignment.
SkyBridge HealthcareNewTravel Nurse RN - Oncology in Onancock, VA SkyBridge HealthcareTravel Nurse RN - Oncology in Onancock, VAOnancock, VA$47.85–$56.55 / hourWhether you are an experienced traveler, or this is your first travel position, SkyBridge Healthcare puts our Nurses first and ensures a seamless travel experience. SkyBridge Healthcare wants the best for our employees, and we are dedicated to helping professionals land their ideal travel assignment.
SkyBridge HealthcareNewTravel Nurse RN - Medical-Surgical in Onancock, VA SkyBridge HealthcareTravel Nurse RN - Medical-Surgical in Onancock, VAOnancock, VA$45.65–$53.95 / hourWhether you are an experienced traveler, or this is your first travel position, SkyBridge Healthcare puts our Nurses first and ensures a seamless travel experience. SkyBridge Healthcare wants the best for our employees, and we are dedicated to helping professionals land their ideal travel assignment.
Care CareerNewTravel Nurse RN - Oncology - $2,623 per week in Onancock, VA Care CareerTravel Nurse RN - Oncology - $2,623 per week in Onancock, VAOnancock, VA$2,622.93–$2,622.93An Oncology Registered Nurse (RN) is a specialist in the health care field that administers care and support for patients undergoing cancer treatments. He/ she works as an integral part of the multidisciplinary staff and is responsible for educating patients and families and/or significant others about tests, procedures and treatments and their side effects.
Advocate AuroraRegistered Nurse (RN) Medical Surgical Unit - Princess Anne Advocate AuroraRegistered Nurse (RN) Medical Surgical Unit - Princess AnneCrisfield, MDAdvocate Health offers a comprehensive suite of Total Rewards: benefits and well-being programs, competitive compensation, generous retirement offerings, programs that invest in your career development and so much more - so you can live fully at and away from work, including: Compensation . It's part of a tri-city area with Menominee, MI and Peshtigo, WI, offering a mix of charming neighborhoods, affordable housing, and outdoor recreation like fishing, boating, and hiking.
ATC Healthcare ServicesNewTravel Nurse RN - Med/Surg / Telemetry in Onancock, VA ATC Healthcare ServicesTravel Nurse RN - Med/Surg / Telemetry in Onancock, VAOnancock, VAWe value teamwork, continuous growth, and creating a respectful, drama-free environment where people feel supported and empowered to do meaningful work. ATC Healthcare is seeking a skilled and compassionate Registered Nurse (RN) - MedSurg / Tele to join our growing clinician community.
ATC Healthcare ServicesNewTravel Nurse RN - Oncology in Onancock, VA ATC Healthcare ServicesTravel Nurse RN - Oncology in Onancock, VAOnancock, VAWe value teamwork, continuous growth, and creating a respectful, drama-free environment where people feel supported and empowered to do meaningful work. ATC Healthcare is seeking a skilled and compassionate Registered Nurse (RN) - Oncology to join our growing clinician community.
Cynet HealthNewTravel Nurse RN - Oncology - $2,445 per week in Onancock, VA Cynet HealthTravel Nurse RN - Oncology - $2,445 per week in Onancock, VAOnancock, VA$2,444.93–$2,444.93Job Title: Registered Nurse Profession: Nursing Specialty: Oncology Duration: 13 weeks Shift: Day Hours per Shift: 8 Experience: Minimum 2 years of experience in oncology nursing License: Valid nursing license required Certifications: - BLS - Chemotherapy certification (ONS/ONCC) Must-Have: - Oncology certification (OCN) - Proficiency in EMR EPIC oncology platform (Beacon) - Previous charge experience - Experience in outpatient oncology Description: The Registered Nurse will work in an outpatient infusion and chemotherapy suite. The nurse will administer chemotherapy, immunotherapies, blood products, antibiotics, and other infusions and injections.
Cynet HealthNewTravel Nurse RN - Med/Surg / Telemetry - $2,087 per week in Onancock, VA Cynet HealthTravel Nurse RN - Med/Surg / Telemetry - $2,087 per week in Onancock, VAOnancock, VA$2,086.93–$2,086.93Job Title: Registered Nurse Profession: Nursing Specialty: Medical/Surgical/Telemetry Duration: 13 weeks Shift: Night Hours per Shift: 12 Experience: Minimum 2 years of experience required License: VA License required Certifications: ACLS, BLS, NIHSS Must-Have: Epic charting experience required Description: The role is for a registered nurse specialized in medical-surgical and telemetry. Candidates must demonstrate proficiency in oxygen administration and management of high flow nasal cannula.
Advantis Medical StaffingNewTravel Nurse RN - Home Health - $2,116 per week in Salisbury, MD Advantis Medical StaffingTravel Nurse RN - Home Health - $2,116 per week in Salisbury, MDSalisbury, MD$2,116–$2,116Advantis Medical, the #1 rated travel nurse agency, is currently seeking an experienced Home Health Registered Nurse (RN) for an exciting new travel job in Salisbury, MD 21801. If you are an experienced Home Health Registered Nurse (RN) with a passion for providing exceptional patient care, just let us know you’re interested.
GQR HealthcareNewTravel Nurse RN - Home Health - $1,832 to $1,927 per week in Accomac, VA GQR HealthcareTravel Nurse RN - Home Health - $1,832 to $1,927 per week in Accomac, VAAccomac, VA$1,832–$1,927As an award-winning talent partner, we support healthcare professionals through every step of that process, offering meaningful opportunities, clear guidance, and long-term partnership. *Estimated weekly pay includes projected hourly wages and weekly meal and lodging per diems for eligible clinicians based on nationally published GSA rates.
Concentric Healthcare StaffingNewTravel Nurse RN - Oncology in Onancock, VA Concentric Healthcare StaffingTravel Nurse RN - Oncology in Onancock, VAOnancock, VAKey ResponsibilitiesAdminister chemotherapy, immune/biotherapies, blood products, antibiotics, infusions, and injections in an infusion suite setting. Required QualificationsActive Registered Nurse (RN) license valid in Virginia or a compact license with proof provided at time of submittal.
Fusion Medical StaffingNewTravel Nurse RN - Oncology - $2,042 to $2,172 per week in Onancock, VA Fusion Medical StaffingTravel Nurse RN - Oncology - $2,042 to $2,172 per week in Onancock, VAOnancock, VA$2,042–$2,172Develop and implement individualized education plans for cancer patients and families, addressing treatment regimens, side effect management, and self-care strategies . This role involves administering cancer treatments, managing side effects, and providing education and emotional support to patients and families.
Fusion Medical StaffingNewTravel Nurse RN - Medical-Surgical - $1,749 to $1,861 per week in Onancock, VA Fusion Medical StaffingTravel Nurse RN - Medical-Surgical - $1,749 to $1,861 per week in Onancock, VAOnancock, VA$1,749–$1,861This role involves assessing patient health conditions, monitoring cardiac telemetry data, and collaborating with multidisciplinary teams to manage diverse patient needs. Summary:The Med Surg/Tele Registered Nurse delivers comprehensive high-quality, patient-centered care in medical-surgical and telemetry units.
Host HealthcareNewTravel Nurse RN - $1,780 to $1,933 per week in Salisbury, MD Host HealthcareTravel Nurse RN - $1,780 to $1,933 per week in Salisbury, MDSalisbury, MD$1,779.78–$1,932.80Passionate and transparent team members have made Host Healthcare the agency of choice for new and experienced travelers looking for opportunities far away and close to home. Host Healthcare is an award-winning travel healthcare company with an immediate opening for this Registered Nurse - ICU in Salisbury, MD.
Host HealthcareNewTravel Nurse RN - Home Health - $1,843 to $1,992 per week in Salisbury, MD Host HealthcareTravel Nurse RN - Home Health - $1,843 to $1,992 per week in Salisbury, MDSalisbury, MD$1,842.55–$1,991.76Passionate and transparent team members have made Host Healthcare the agency of choice for new and experienced travelers looking for opportunities far away and close to home. Host Healthcare is an award-winning travel healthcare company with an immediate opening for this Registered Nurse - Home Health in Salisbury, MD.
Host HealthcareNewTravel Nurse RN - Intensive Care Unit (ICU) / Critical Care - $1,918 to $2,071 per week in Salisbury, MD Host HealthcareTravel Nurse RN - Intensive Care Unit (ICU) / Critical Care - $1,918 to $2,071 per week in Salisbury, MDSalisbury, MD$1,918.43–$2,071.45Passionate and transparent team members have made Host Healthcare the agency of choice for new and experienced travelers looking for opportunities far away and close to home. Host Healthcare is an award-winning travel healthcare company with an immediate opening for this Registered Nurse - ICU in Salisbury, MD.
FlexCareNewTravel Nurse RN - Telemetry - $1,835 per week in Onancock, VA FlexCareTravel Nurse RN - Telemetry - $1,835 per week in Onancock, VAOnancock, VA$1,835–$1,835Less hassle, more control: one recruiter, transparent pay, and concierge-level support that anticipates your needs. Start faster, stay supported, and keep working where and the way you want.
FlexCareNewTravel Nurse RN - Intensive Care Unit (ICU) / Critical Care - $2,046 per week in Salisbury, MD FlexCareTravel Nurse RN - Intensive Care Unit (ICU) / Critical Care - $2,046 per week in Salisbury, MDSalisbury, MD$2,046–$2,046Less hassle, more control: one recruiter, transparent pay, and concierge-level support that anticipates your needs. Start faster, stay supported, and keep working where and the way you want.
GetMed StaffingNewTravel Nurse RN - Telemetry - $1,812 per week in Onancock, VA GetMed StaffingTravel Nurse RN - Telemetry - $1,812 per week in Onancock, VAOnancock, VA$1,812.43–$1,812.43Traveling with GetMed Staffing offers the unique opportunity to gain diverse experiences, both personally and professionally. GetMed Staffing is searching for a strong Telemetry RN to assist our traveler-friendly client.
A-Line Staffing Solutions LLCHome Health RN A-Line Staffing Solutions LLCHome Health RNCambridge, MD$56.13–$56.14 / hourCollaborate with primary care providers to ensure the implementation of an individualized, comprehensive care plan with specific interventions designed to engage the member. Give accurate information to patients, patient families and home health care staff members regarding cost for home health care services.
LOW VISION SPECIALISTS INC Dr. Debbie Steele-MooreMedical / Healthcare Optician/Optometrist Assistant LOW VISION SPECIALISTS INC Dr. Debbie Steele-MooreMedical / Healthcare Optician/Optometrist AssistantSALISBURY, MDemployees set half hour prior opening and after closing- start 830/745 close 530/630/2 on Mon/Sat) . Friendly, Professional Optician/medical technician to work in a small, established but busy Optical / Optometrist practice.
Talantage, LLCRegistered Nurse, Charge (Westover) Talantage, LLCRegistered Nurse, Charge (Westover)Westover, MDThis role works under the direction of the Director of Nursing (DON) and/or Nursing Supervisor and collaborates with a multidisciplinary team to assess and address the physical, psychological, and social needs of patients. The Charge RN is responsible for supervising nursing and support staff, coordinating patient care, and ensuring the delivery of safe, efficient, and high-quality healthcare services.
Talantage, LLCCertified Wound Care Registered Nurse (Westover) Talantage, LLCCertified Wound Care Registered Nurse (Westover)Westover, MDThe Certified Wound Care Registered Nurse (RN) is responsible for providing specialized assessment, treatment, and management of acute and chronic wounds within a correctional healthcare setting. This role ensures the delivery of high-quality, evidence-based wound care while collaborating with medical providers and nursing staff to promote optimal healing outcomes.
Centurion HealthRegistered Nurse - Wound Care Centurion HealthRegistered Nurse - Wound CareWestover, Maryland$58The Certified Wound care Registered Nurse (RN) is responsible for providing holistic nursing care within the appropriate scope of practice to incarcerated patients while working under the direction of the Director of Nursing (DON) and/or Nursing Supervisor and collaborating with a multi-disciplinary team to identify, assess, and respond to a wide range of physical, psychological, and social needs of patients. Minimum of two years of recent (in the past five years) work experience as an RN preferred in a community outpatient clinic, hospital or long-term care facility preferred.
TidalHealthRegistered Nurse (RN)- Weekend Position TidalHealthRegistered Nurse (RN)- Weekend PositionCrisfield, MD$33–$52.80 / hourLocated just 30 minutes from the beach, TidalHealth offers the widest array of specialty and subspecialty services such as neurosurgery, cardiothoracic surgery, joint replacement, emergency, trauma care, comprehensive cancer care, wound care, and clinical trials and research. Registered Nurse RN Benefits At TidalHealth, full-time employees working at least 72 hours per pay period, part-time employees working at least 36 hours per pay period, and part-time employees working at least 30 hours or more on weekends only are eligible for benefits.
Cooperidge Consulting FirmCVICU Registered Nurse Cooperidge Consulting FirmCVICU Registered NurseOcean City, FL$78,000–$105,000This dynamic role provides highly specialized, compassionate care for critically ill cardiovascular patients who require close monitoring and frequent, complex assessments. The CVICU RN is required to make autonomous and sound clinical assessments and manage treatment protocols, operating in a collaborative environment with a commitment to continuous improvement and excellent patient outcomes.
Cooperidge Consulting FirmICU Registered Nurse Cooperidge Consulting FirmICU Registered NurseOcean City, MD$78,000–$105,000This dynamic and highly specialized role provides compassionate care for critically ill patients requiring close monitoring, frequent complex assessments, and specialized interventions. The ICU RN is required to make autonomous clinical assessments and manage treatment protocols within a collaborative environment, focusing on providing high-quality care with a commitment to continuous professional improvement.
TidalHealthRegistered Nurse (RN) - ICU TidalHealthRegistered Nurse (RN) - ICUBerlin, MDChoose TidalHealth, which now includes three hospitals - TidalHealth Peninsula Regional in Salisbury, Maryland, TidalHealth Nanticoke in Seaford, Delaware, and Atlantic General Hospital in Berlin, Maryland. This nursing care encompasses the biophysical, psychosocial, cultural, self-care, teaching, and continuing care needs of the patients as appropriate to age and diagnosis.
Supplemental Health CareRehabilitation Registered Nurse Supplemental Health CareRehabilitation Registered NurseSalisbury, MDFull timeWith more than 40 years of experience in healthcare staffing, Supplemental Health Care offers reliable support, competitive pay, and great benefits every step of the way. Whether you're looking to travel or stay local, we're committed to helping Rehabilitation RNs find the right fit with top healthcare facilities across the country.
Wellpath IncNewRegistered Nurse Wellpath IncRegistered NurseSalisbury, MDTuition Assistance and dependent Scholarships• Employee Assistance Program (EAP) including free counseling and health coaching• Company paid life insurance• Tax free Health Spending Accounts (HSA)• Wellness program featuring fitness memberships and product discounts• Preferred banking partnership and discounted rates for home and auto loans. Wellpath sees hundreds of thousands of unique individuals in their facilities month over month and a very large percent of those individuals receive direct clinical care, which includes lives saved by Narcan.
Aequor Healthcare Services, Llc.NewRegistered Nurse (RN) - Telemetry Aequor Healthcare Services, Llc.Registered Nurse (RN) - TelemetryOnancock, VAContractorPublished Description: Job Title: Registered Nurse (RN) - Telemetry About Aequor: Established in 1998, Aequor is a premier healthcare and education staffing company, committed to connecting skilled professionals with rewarding career opportunities. Job Responsibilities: Monitor and assess patients with cardiac conditions using telemetry equipment, tracking heart rhythms and vital signs to detect any abnormalities or changes.
Forefront DermatologyMedical Assistant Forefront DermatologyMedical AssistantSalisbury, MarylandMinimum post high-school education in a medical support field: Certified Medical Assistant, Licensed Practical Nurse, or Registered Nurse (Non-Certified Medical Assistants will need to complete the Forefront Derm Tech certification program within the prescribed time period and maintain certification upon expiration). The Medical Assistant is essential during the patient visit, accompanying the dermatologist in the room and promoting a friendly and efficient environment for patients, staff, and dermatologists.
IMCS Group IncRegistered Nurse/MS/Tele IMCS Group IncRegistered Nurse/MS/TeleOnancock, VA36 bed telemetry/surgical floor. Locals allowed at same rate.
Somnia, Inc.CRNA (Certified Registered Nurse Anesthetist) - 1099 | $225/hour | Atlantic General Endoscopy Center - Berlin, MD Somnia, Inc.CRNA (Certified Registered Nurse Anesthetist) - 1099 | $225/hour | Atlantic General Endoscopy Center - Berlin, MDBerlin, MarylandIts beautifully preserved Victorian downtown—featured in films like Runaway Bride—anchors a vibrant cultural scene filled with festivals, museums, and local arts. Atlantic General Endoscopy Center stands as a premier destination for digestive health excellence, offering state-of-the-art diagnostic and therapeutic gastrointestinal services in a patient-centered environment.
ICONMA, LLCRN - Med Surg ICONMA, LLCRN - Med SurgSalisbury, MD$31–$49.60 / hourRequirements:Licensed and currently registered to practice as a Registered Nurse in the State of Maryland or Delaware or other compact state. Responsibilities:The inventory, distribution/delivery of medications is required for all Patient Care area Positions.